[PATCH 2/7] toytoolkit: Use the new xdg-shell interface.
antognolli at gmail.com
antognolli at gmail.com
Fri Jul 19 12:42:44 PDT 2013
From: Rafael Antognolli <rafael.antognolli at intel.com>
A copy of window.c (the implementation of the toytoolkit) is done,
with the respective needed changes to make it work with xdg-shell. It
will be compiled instead of the default toytoolkit if xdg-shell is
enabled at configure time.
---
clients/.gitignore | 2 +
clients/Makefile.am | 31 +-
clients/xdg_window.c | 5311 ++++++++++++++++++++++++++++++++++++++++++++++++++
clients/xdg_window.h | 532 +++++
4 files changed, 5874 insertions(+), 2 deletions(-)
create mode 100644 clients/xdg_window.c
create mode 100644 clients/xdg_window.h
diff --git a/clients/.gitignore b/clients/.gitignore
index 94082f8..a940ae5 100644
--- a/clients/.gitignore
+++ b/clients/.gitignore
@@ -41,3 +41,5 @@ weston-terminal
workspaces-client-protocol.h
workspaces-protocol.c
weston-simple-im
+xdg-surface-client-protocol.h
+xdg-surface-protocol.c
diff --git a/clients/Makefile.am b/clients/Makefile.am
index cad0d40..23a6970 100644
--- a/clients/Makefile.am
+++ b/clients/Makefile.am
@@ -80,8 +80,6 @@ screenshooter = weston-screenshooter
noinst_LTLIBRARIES = libtoytoolkit.la
libtoytoolkit_la_SOURCES = \
- window.c \
- window.h \
text-cursor-position-protocol.c \
text-cursor-position-client-protocol.h \
subsurface-protocol.c \
@@ -89,6 +87,20 @@ libtoytoolkit_la_SOURCES = \
workspaces-protocol.c \
workspaces-client-protocol.h
+if ENABLE_DESKTOP_SHELL
+libtoytoolkit_la_SOURCES += \
+ window.c \
+ window.h
+endif
+
+if ENABLE_XDG_SHELL
+libtoytoolkit_la_SOURCES += \
+ xdg-surface-client-protocol.h \
+ xdg-surface-protocol.c \
+ xdg_window.c \
+ xdg_window.h
+endif
+
libtoytoolkit_la_LIBADD = \
$(CLIENT_LIBS) \
$(CAIRO_EGL_LIBS) \
@@ -215,6 +227,12 @@ BUILT_SOURCES = \
workspaces-client-protocol.h \
workspaces-protocol.c
+if ENABLE_XDG_SHELL
+BUILT_SOURCES += \
+ xdg-surface-client-protocol.h \
+ xdg-surface-protocol.c
+endif
+
CLEANFILES = $(BUILT_SOURCES)
endif
@@ -241,6 +259,15 @@ endif
endif
+%-protocol.c : @xdg_protocoldir@/%.xml
+ $(AM_V_GEN)$(wayland_scanner) code < $< > $@
+
+%-server-protocol.h : @xdg_protocoldir@/%.xml
+ $(AM_V_GEN)$(wayland_scanner) server-header < $< > $@
+
+%-client-protocol.h : @xdg_protocoldir@/%.xml
+ $(AM_V_GEN)$(wayland_scanner) client-header < $< > $@
+
@wayland_scanner_rules@
if HAVE_POPPLER
diff --git a/clients/xdg_window.c b/clients/xdg_window.c
new file mode 100644
index 0000000..af8186e
--- /dev/null
+++ b/clients/xdg_window.c
@@ -0,0 +1,5311 @@
+/*
+ * Copyright © 2008 Kristian Høgsberg
+ * Copyright © 2012-2013 Collabora, Ltd.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <math.h>
+#include <assert.h>
+#include <time.h>
+#include <cairo.h>
+#include <sys/mman.h>
+#include <sys/epoll.h>
+#include <sys/timerfd.h>
+
+#ifdef HAVE_CAIRO_EGL
+#include <wayland-egl.h>
+
+#ifdef USE_CAIRO_GLESV2
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#else
+#include <GL/gl.h>
+#endif
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include <cairo-gl.h>
+#else /* HAVE_CAIRO_EGL */
+typedef void *EGLDisplay;
+typedef void *EGLConfig;
+typedef void *EGLContext;
+#define EGL_NO_DISPLAY ((EGLDisplay)0)
+#endif /* no HAVE_CAIRO_EGL */
+
+#include <xkbcommon/xkbcommon.h>
+#include <wayland-cursor.h>
+
+#include <linux/input.h>
+#include <wayland-client.h>
+#include "../shared/cairo-util.h"
+#include "text-cursor-position-client-protocol.h"
+#include "workspaces-client-protocol.h"
+#include "../shared/os-compatibility.h"
+
+#include "xdg_window.h"
+
+struct shm_pool;
+
+struct global {
+ uint32_t name;
+ char *interface;
+ uint32_t version;
+ struct wl_list link;
+};
+
+struct display {
+ struct wl_display *display;
+ struct wl_registry *registry;
+ struct wl_compositor *compositor;
+ struct wl_subcompositor *subcompositor;
+ struct xdg_shell *shell;
+ struct wl_shm *shm;
+ struct wl_data_device_manager *data_device_manager;
+ struct text_cursor_position *text_cursor_position;
+ struct workspace_manager *workspace_manager;
+ EGLDisplay dpy;
+ EGLConfig argb_config;
+ EGLContext argb_ctx;
+ cairo_device_t *argb_device;
+ uint32_t serial;
+
+ int display_fd;
+ uint32_t display_fd_events;
+ struct task display_task;
+
+ int epoll_fd;
+ struct wl_list deferred_list;
+
+ int running;
+
+ struct wl_list global_list;
+ struct wl_list window_list;
+ struct wl_list input_list;
+ struct wl_list output_list;
+
+ struct theme *theme;
+
+ struct wl_cursor_theme *cursor_theme;
+ struct wl_cursor **cursors;
+
+ display_output_handler_t output_configure_handler;
+ display_global_handler_t global_handler;
+
+ void *user_data;
+
+ struct xkb_context *xkb_context;
+
+ uint32_t workspace;
+ uint32_t workspace_count;
+
+ /* A hack to get text extents for tooltips */
+ cairo_surface_t *dummy_surface;
+ void *dummy_surface_data;
+};
+
+enum {
+ TYPE_NONE,
+ TYPE_TOPLEVEL,
+ TYPE_FULLSCREEN,
+ TYPE_MAXIMIZED,
+ TYPE_TRANSIENT,
+ TYPE_MENU,
+ TYPE_CUSTOM
+};
+
+struct window_output {
+ struct output *output;
+ struct wl_list link;
+};
+
+struct toysurface {
+ /*
+ * Prepare the surface for drawing. Makes sure there is a surface
+ * of the right size available for rendering, and returns it.
+ * dx,dy are the x,y of wl_surface.attach.
+ * width,height are the new buffer size.
+ * If flags has SURFACE_HINT_RESIZE set, the user is
+ * doing continuous resizing.
+ * Returns the Cairo surface to draw to.
+ */
+ cairo_surface_t *(*prepare)(struct toysurface *base, int dx, int dy,
+ int32_t width, int32_t height, uint32_t flags,
+ enum wl_output_transform buffer_transform, int32_t buffer_scale);
+
+ /*
+ * Post the surface to the server, returning the server allocation
+ * rectangle. The Cairo surface from prepare() must be destroyed
+ * after calling this.
+ */
+ void (*swap)(struct toysurface *base,
+ enum wl_output_transform buffer_transform, int32_t buffer_scale,
+ struct rectangle *server_allocation);
+
+ /*
+ * Make the toysurface current with the given EGL context.
+ * Returns 0 on success, and negative of failure.
+ */
+ int (*acquire)(struct toysurface *base, EGLContext ctx);
+
+ /*
+ * Release the toysurface from the EGL context, returning control
+ * to Cairo.
+ */
+ void (*release)(struct toysurface *base);
+
+ /*
+ * Destroy the toysurface, including the Cairo surface, any
+ * backing storage, and the Wayland protocol objects.
+ */
+ void (*destroy)(struct toysurface *base);
+};
+
+struct surface {
+ struct window *window;
+
+ struct wl_surface *surface;
+ struct wl_subsurface *subsurface;
+ int synchronized;
+ int synchronized_default;
+ struct toysurface *toysurface;
+ struct widget *widget;
+ int redraw_needed;
+ struct wl_callback *frame_cb;
+ uint32_t last_time;
+
+ struct rectangle allocation;
+ struct rectangle server_allocation;
+
+ struct wl_region *input_region;
+ struct wl_region *opaque_region;
+
+ enum window_buffer_type buffer_type;
+ enum wl_output_transform buffer_transform;
+ int32_t buffer_scale;
+
+ cairo_surface_t *cairo_surface;
+
+ struct wl_list link;
+};
+
+struct window {
+ struct display *display;
+ struct window *parent;
+ struct wl_list window_output_list;
+ char *title;
+ struct rectangle saved_allocation;
+ struct rectangle min_allocation;
+ struct rectangle pending_allocation;
+ int x, y;
+ int resize_edges;
+ int redraw_needed;
+ int redraw_task_scheduled;
+ struct task redraw_task;
+ int resize_needed;
+ int saved_type;
+ int type;
+ int focus_count;
+
+ int resizing;
+ int fullscreen_method;
+ int configure_requests;
+
+ window_key_handler_t key_handler;
+ window_keyboard_focus_handler_t keyboard_focus_handler;
+ window_data_handler_t data_handler;
+ window_drop_handler_t drop_handler;
+ window_close_handler_t close_handler;
+ window_fullscreen_handler_t fullscreen_handler;
+ window_output_handler_t output_handler;
+
+ struct surface *main_surface;
+ struct xdg_surface *shell_surface;
+
+ struct frame *frame;
+
+ /* struct surface::link, contains also main_surface */
+ struct wl_list subsurface_list;
+
+ void *user_data;
+ struct wl_list link;
+};
+
+struct widget {
+ struct window *window;
+ struct surface *surface;
+ struct tooltip *tooltip;
+ struct wl_list child_list;
+ struct wl_list link;
+ struct rectangle allocation;
+ widget_resize_handler_t resize_handler;
+ widget_redraw_handler_t redraw_handler;
+ widget_enter_handler_t enter_handler;
+ widget_leave_handler_t leave_handler;
+ widget_motion_handler_t motion_handler;
+ widget_button_handler_t button_handler;
+ widget_axis_handler_t axis_handler;
+ void *user_data;
+ int opaque;
+ int tooltip_count;
+ int default_cursor;
+};
+
+struct input {
+ struct display *display;
+ struct wl_seat *seat;
+ struct wl_pointer *pointer;
+ struct wl_keyboard *keyboard;
+ struct window *pointer_focus;
+ struct window *keyboard_focus;
+ int current_cursor;
+ uint32_t cursor_anim_start;
+ struct wl_callback *cursor_frame_cb;
+ struct wl_surface *pointer_surface;
+ uint32_t modifiers;
+ uint32_t pointer_enter_serial;
+ uint32_t cursor_serial;
+ float sx, sy;
+ struct wl_list link;
+
+ struct widget *focus_widget;
+ struct widget *grab;
+ uint32_t grab_button;
+
+ struct wl_data_device *data_device;
+ struct data_offer *drag_offer;
+ struct data_offer *selection_offer;
+
+ struct {
+ struct xkb_keymap *keymap;
+ struct xkb_state *state;
+ xkb_mod_mask_t control_mask;
+ xkb_mod_mask_t alt_mask;
+ xkb_mod_mask_t shift_mask;
+ } xkb;
+
+ struct task repeat_task;
+ int repeat_timer_fd;
+ uint32_t repeat_sym;
+ uint32_t repeat_key;
+ uint32_t repeat_time;
+};
+
+struct output {
+ struct display *display;
+ struct wl_output *output;
+ struct rectangle allocation;
+ struct wl_list link;
+ int transform;
+ int scale;
+
+ display_output_handler_t destroy_handler;
+ void *user_data;
+};
+
+enum frame_button_action {
+ FRAME_BUTTON_NULL = 0,
+ FRAME_BUTTON_ICON = 1,
+ FRAME_BUTTON_CLOSE = 2,
+ FRAME_BUTTON_MINIMIZE = 3,
+ FRAME_BUTTON_MAXIMIZE = 4,
+};
+
+enum frame_button_pointer {
+ FRAME_BUTTON_DEFAULT = 0,
+ FRAME_BUTTON_OVER = 1,
+ FRAME_BUTTON_ACTIVE = 2,
+};
+
+enum frame_button_align {
+ FRAME_BUTTON_RIGHT = 0,
+ FRAME_BUTTON_LEFT = 1,
+};
+
+enum frame_button_decoration {
+ FRAME_BUTTON_NONE = 0,
+ FRAME_BUTTON_FANCY = 1,
+};
+
+struct frame_button {
+ struct widget *widget;
+ struct frame *frame;
+ cairo_surface_t *icon;
+ enum frame_button_action type;
+ enum frame_button_pointer state;
+ struct wl_list link; /* buttons_list */
+ enum frame_button_align align;
+ enum frame_button_decoration decoration;
+};
+
+struct frame {
+ struct widget *widget;
+ struct widget *child;
+ struct wl_list buttons_list;
+};
+
+struct menu {
+ struct window *window;
+ struct widget *widget;
+ struct input *input;
+ const char **entries;
+ uint32_t time;
+ int current;
+ int count;
+ int release_count;
+ menu_func_t func;
+};
+
+struct tooltip {
+ struct widget *parent;
+ struct window *window;
+ struct widget *widget;
+ char *entry;
+ struct task tooltip_task;
+ int tooltip_fd;
+ float x, y;
+};
+
+struct shm_pool {
+ struct wl_shm_pool *pool;
+ size_t size;
+ size_t used;
+ void *data;
+};
+
+enum {
+ CURSOR_DEFAULT = 100,
+ CURSOR_UNSET
+};
+
+enum window_location {
+ WINDOW_INTERIOR = 0,
+ WINDOW_RESIZING_TOP = 1,
+ WINDOW_RESIZING_BOTTOM = 2,
+ WINDOW_RESIZING_LEFT = 4,
+ WINDOW_RESIZING_TOP_LEFT = 5,
+ WINDOW_RESIZING_BOTTOM_LEFT = 6,
+ WINDOW_RESIZING_RIGHT = 8,
+ WINDOW_RESIZING_TOP_RIGHT = 9,
+ WINDOW_RESIZING_BOTTOM_RIGHT = 10,
+ WINDOW_RESIZING_MASK = 15,
+ WINDOW_EXTERIOR = 16,
+ WINDOW_TITLEBAR = 17,
+ WINDOW_CLIENT_AREA = 18,
+};
+
+static const cairo_user_data_key_t shm_surface_data_key;
+
+/* #define DEBUG */
+
+#ifdef DEBUG
+
+static void
+debug_print(void *proxy, int line, const char *func, const char *fmt, ...)
+__attribute__ ((format (printf, 4, 5)));
+
+static void
+debug_print(void *proxy, int line, const char *func, const char *fmt, ...)
+{
+ va_list ap;
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+ fprintf(stderr, "%8ld.%03ld ",
+ (long)tv.tv_sec & 0xffff, (long)tv.tv_usec / 1000);
+
+ if (proxy)
+ fprintf(stderr, "%s@%d ",
+ wl_proxy_get_class(proxy), wl_proxy_get_id(proxy));
+
+ /*fprintf(stderr, __FILE__ ":%d:%s ", line, func);*/
+ fprintf(stderr, "%s ", func);
+
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+}
+
+#define DBG(fmt, ...) \
+ debug_print(NULL, __LINE__, __func__, fmt, ##__VA_ARGS__)
+
+#define DBG_OBJ(obj, fmt, ...) \
+ debug_print(obj, __LINE__, __func__, fmt, ##__VA_ARGS__)
+
+#else
+
+#define DBG(...) do {} while (0)
+#define DBG_OBJ(...) do {} while (0)
+
+#endif
+
+static void
+surface_to_buffer_size (enum wl_output_transform buffer_transform, int32_t buffer_scale, int32_t *width, int32_t *height)
+{
+ int32_t tmp;
+
+ switch (buffer_transform) {
+ case WL_OUTPUT_TRANSFORM_90:
+ case WL_OUTPUT_TRANSFORM_270:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_90:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_270:
+ tmp = *width;
+ *width = *height;
+ *height = tmp;
+ break;
+ default:
+ break;
+ }
+
+ *width *= buffer_scale;
+ *height *= buffer_scale;
+}
+
+static void
+buffer_to_surface_size (enum wl_output_transform buffer_transform, int32_t buffer_scale, int32_t *width, int32_t *height)
+{
+ int32_t tmp;
+
+ switch (buffer_transform) {
+ case WL_OUTPUT_TRANSFORM_90:
+ case WL_OUTPUT_TRANSFORM_270:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_90:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_270:
+ tmp = *width;
+ *width = *height;
+ *height = tmp;
+ break;
+ default:
+ break;
+ }
+
+ *width /= buffer_scale;
+ *height /= buffer_scale;
+}
+
+#ifdef HAVE_CAIRO_EGL
+
+struct egl_window_surface {
+ struct toysurface base;
+ cairo_surface_t *cairo_surface;
+ struct display *display;
+ struct wl_surface *surface;
+ struct wl_egl_window *egl_window;
+ EGLSurface egl_surface;
+};
+
+static struct egl_window_surface *
+to_egl_window_surface(struct toysurface *base)
+{
+ return container_of(base, struct egl_window_surface, base);
+}
+
+static cairo_surface_t *
+egl_window_surface_prepare(struct toysurface *base, int dx, int dy,
+ int32_t width, int32_t height, uint32_t flags,
+ enum wl_output_transform buffer_transform, int32_t buffer_scale)
+{
+ struct egl_window_surface *surface = to_egl_window_surface(base);
+
+ surface_to_buffer_size (buffer_transform, buffer_scale, &width, &height);
+
+ wl_egl_window_resize(surface->egl_window, width, height, dx, dy);
+ cairo_gl_surface_set_size(surface->cairo_surface, width, height);
+
+ return cairo_surface_reference(surface->cairo_surface);
+}
+
+static void
+egl_window_surface_swap(struct toysurface *base,
+ enum wl_output_transform buffer_transform, int32_t buffer_scale,
+ struct rectangle *server_allocation)
+{
+ struct egl_window_surface *surface = to_egl_window_surface(base);
+
+ cairo_gl_surface_swapbuffers(surface->cairo_surface);
+ wl_egl_window_get_attached_size(surface->egl_window,
+ &server_allocation->width,
+ &server_allocation->height);
+
+ buffer_to_surface_size (buffer_transform, buffer_scale,
+ &server_allocation->width,
+ &server_allocation->height);
+}
+
+static int
+egl_window_surface_acquire(struct toysurface *base, EGLContext ctx)
+{
+ struct egl_window_surface *surface = to_egl_window_surface(base);
+ cairo_device_t *device;
+
+ device = cairo_surface_get_device(surface->cairo_surface);
+ if (!device)
+ return -1;
+
+ if (!ctx) {
+ if (device == surface->display->argb_device)
+ ctx = surface->display->argb_ctx;
+ else
+ assert(0);
+ }
+
+ cairo_device_flush(device);
+ cairo_device_acquire(device);
+ if (!eglMakeCurrent(surface->display->dpy, surface->egl_surface,
+ surface->egl_surface, ctx))
+ fprintf(stderr, "failed to make surface current\n");
+
+ return 0;
+}
+
+static void
+egl_window_surface_release(struct toysurface *base)
+{
+ struct egl_window_surface *surface = to_egl_window_surface(base);
+ cairo_device_t *device;
+
+ device = cairo_surface_get_device(surface->cairo_surface);
+ if (!device)
+ return;
+
+ if (!eglMakeCurrent(surface->display->dpy, NULL, NULL,
+ surface->display->argb_ctx))
+ fprintf(stderr, "failed to make context current\n");
+
+ cairo_device_release(device);
+}
+
+static void
+egl_window_surface_destroy(struct toysurface *base)
+{
+ struct egl_window_surface *surface = to_egl_window_surface(base);
+ struct display *d = surface->display;
+
+ cairo_surface_destroy(surface->cairo_surface);
+ eglDestroySurface(d->dpy, surface->egl_surface);
+ wl_egl_window_destroy(surface->egl_window);
+ surface->surface = NULL;
+
+ free(surface);
+}
+
+static struct toysurface *
+egl_window_surface_create(struct display *display,
+ struct wl_surface *wl_surface,
+ uint32_t flags,
+ struct rectangle *rectangle)
+{
+ struct egl_window_surface *surface;
+
+ if (display->dpy == EGL_NO_DISPLAY)
+ return NULL;
+
+ surface = calloc(1, sizeof *surface);
+ if (!surface)
+ return NULL;
+
+ surface->base.prepare = egl_window_surface_prepare;
+ surface->base.swap = egl_window_surface_swap;
+ surface->base.acquire = egl_window_surface_acquire;
+ surface->base.release = egl_window_surface_release;
+ surface->base.destroy = egl_window_surface_destroy;
+
+ surface->display = display;
+ surface->surface = wl_surface;
+
+ surface->egl_window = wl_egl_window_create(surface->surface,
+ rectangle->width,
+ rectangle->height);
+
+ surface->egl_surface = eglCreateWindowSurface(display->dpy,
+ display->argb_config,
+ surface->egl_window,
+ NULL);
+
+ surface->cairo_surface =
+ cairo_gl_surface_create_for_egl(display->argb_device,
+ surface->egl_surface,
+ rectangle->width,
+ rectangle->height);
+
+ return &surface->base;
+}
+
+#else
+
+static struct toysurface *
+egl_window_surface_create(struct display *display,
+ struct wl_surface *wl_surface,
+ uint32_t flags,
+ struct rectangle *rectangle)
+{
+ return NULL;
+}
+
+#endif
+
+struct shm_surface_data {
+ struct wl_buffer *buffer;
+ struct shm_pool *pool;
+};
+
+struct wl_buffer *
+display_get_buffer_for_surface(struct display *display,
+ cairo_surface_t *surface)
+{
+ struct shm_surface_data *data;
+
+ data = cairo_surface_get_user_data(surface, &shm_surface_data_key);
+
+ return data->buffer;
+}
+
+static void
+shm_pool_destroy(struct shm_pool *pool);
+
+static void
+shm_surface_data_destroy(void *p)
+{
+ struct shm_surface_data *data = p;
+
+ wl_buffer_destroy(data->buffer);
+ if (data->pool)
+ shm_pool_destroy(data->pool);
+
+ free(data);
+}
+
+static struct wl_shm_pool *
+make_shm_pool(struct display *display, int size, void **data)
+{
+ struct wl_shm_pool *pool;
+ int fd;
+
+ fd = os_create_anonymous_file(size);
+ if (fd < 0) {
+ fprintf(stderr, "creating a buffer file for %d B failed: %m\n",
+ size);
+ return NULL;
+ }
+
+ *data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (*data == MAP_FAILED) {
+ fprintf(stderr, "mmap failed: %m\n");
+ close(fd);
+ return NULL;
+ }
+
+ pool = wl_shm_create_pool(display->shm, fd, size);
+
+ close(fd);
+
+ return pool;
+}
+
+static struct shm_pool *
+shm_pool_create(struct display *display, size_t size)
+{
+ struct shm_pool *pool = malloc(sizeof *pool);
+
+ if (!pool)
+ return NULL;
+
+ pool->pool = make_shm_pool(display, size, &pool->data);
+ if (!pool->pool) {
+ free(pool);
+ return NULL;
+ }
+
+ pool->size = size;
+ pool->used = 0;
+
+ return pool;
+}
+
+static void *
+shm_pool_allocate(struct shm_pool *pool, size_t size, int *offset)
+{
+ if (pool->used + size > pool->size)
+ return NULL;
+
+ *offset = pool->used;
+ pool->used += size;
+
+ return (char *) pool->data + *offset;
+}
+
+/* destroy the pool. this does not unmap the memory though */
+static void
+shm_pool_destroy(struct shm_pool *pool)
+{
+ munmap(pool->data, pool->size);
+ wl_shm_pool_destroy(pool->pool);
+ free(pool);
+}
+
+/* Start allocating from the beginning of the pool again */
+static void
+shm_pool_reset(struct shm_pool *pool)
+{
+ pool->used = 0;
+}
+
+static int
+data_length_for_shm_surface(struct rectangle *rect)
+{
+ int stride;
+
+ stride = cairo_format_stride_for_width (CAIRO_FORMAT_ARGB32,
+ rect->width);
+ return stride * rect->height;
+}
+
+static cairo_surface_t *
+display_create_shm_surface_from_pool(struct display *display,
+ struct rectangle *rectangle,
+ uint32_t flags, struct shm_pool *pool)
+{
+ struct shm_surface_data *data;
+ uint32_t format;
+ cairo_surface_t *surface;
+ int stride, length, offset;
+ void *map;
+
+ data = malloc(sizeof *data);
+ if (data == NULL)
+ return NULL;
+
+ stride = cairo_format_stride_for_width (CAIRO_FORMAT_ARGB32,
+ rectangle->width);
+ length = stride * rectangle->height;
+ data->pool = NULL;
+ map = shm_pool_allocate(pool, length, &offset);
+
+ if (!map) {
+ free(data);
+ return NULL;
+ }
+
+ surface = cairo_image_surface_create_for_data (map,
+ CAIRO_FORMAT_ARGB32,
+ rectangle->width,
+ rectangle->height,
+ stride);
+
+ cairo_surface_set_user_data(surface, &shm_surface_data_key,
+ data, shm_surface_data_destroy);
+
+ if (flags & SURFACE_OPAQUE)
+ format = WL_SHM_FORMAT_XRGB8888;
+ else
+ format = WL_SHM_FORMAT_ARGB8888;
+
+ data->buffer = wl_shm_pool_create_buffer(pool->pool, offset,
+ rectangle->width,
+ rectangle->height,
+ stride, format);
+
+ return surface;
+}
+
+static cairo_surface_t *
+display_create_shm_surface(struct display *display,
+ struct rectangle *rectangle, uint32_t flags,
+ struct shm_pool *alternate_pool,
+ struct shm_surface_data **data_ret)
+{
+ struct shm_surface_data *data;
+ struct shm_pool *pool;
+ cairo_surface_t *surface;
+
+ if (alternate_pool) {
+ shm_pool_reset(alternate_pool);
+ surface = display_create_shm_surface_from_pool(display,
+ rectangle,
+ flags,
+ alternate_pool);
+ if (surface) {
+ data = cairo_surface_get_user_data(surface,
+ &shm_surface_data_key);
+ goto out;
+ }
+ }
+
+ pool = shm_pool_create(display,
+ data_length_for_shm_surface(rectangle));
+ if (!pool)
+ return NULL;
+
+ surface =
+ display_create_shm_surface_from_pool(display, rectangle,
+ flags, pool);
+
+ if (!surface) {
+ shm_pool_destroy(pool);
+ return NULL;
+ }
+
+ /* make sure we destroy the pool when the surface is destroyed */
+ data = cairo_surface_get_user_data(surface, &shm_surface_data_key);
+ data->pool = pool;
+
+out:
+ if (data_ret)
+ *data_ret = data;
+
+ return surface;
+}
+
+static int
+check_size(struct rectangle *rect)
+{
+ if (rect->width && rect->height)
+ return 0;
+
+ fprintf(stderr, "tried to create surface of "
+ "width: %d, height: %d\n", rect->width, rect->height);
+ return -1;
+}
+
+cairo_surface_t *
+display_create_surface(struct display *display,
+ struct wl_surface *surface,
+ struct rectangle *rectangle,
+ uint32_t flags)
+{
+ if (check_size(rectangle) < 0)
+ return NULL;
+
+ assert(flags & SURFACE_SHM);
+ return display_create_shm_surface(display, rectangle, flags,
+ NULL, NULL);
+}
+
+struct shm_surface_leaf {
+ cairo_surface_t *cairo_surface;
+ /* 'data' is automatically destroyed, when 'cairo_surface' is */
+ struct shm_surface_data *data;
+
+ struct shm_pool *resize_pool;
+ int busy;
+};
+
+static void
+shm_surface_leaf_release(struct shm_surface_leaf *leaf)
+{
+ if (leaf->cairo_surface)
+ cairo_surface_destroy(leaf->cairo_surface);
+ /* leaf->data already destroyed via cairo private */
+
+ if (leaf->resize_pool)
+ shm_pool_destroy(leaf->resize_pool);
+
+ memset(leaf, 0, sizeof *leaf);
+}
+
+#define MAX_LEAVES 3
+
+struct shm_surface {
+ struct toysurface base;
+ struct display *display;
+ struct wl_surface *surface;
+ uint32_t flags;
+ int dx, dy;
+
+ struct shm_surface_leaf leaf[MAX_LEAVES];
+ struct shm_surface_leaf *current;
+};
+
+static struct shm_surface *
+to_shm_surface(struct toysurface *base)
+{
+ return container_of(base, struct shm_surface, base);
+}
+
+static void
+shm_surface_buffer_state_debug(struct shm_surface *surface, const char *msg)
+{
+#ifdef DEBUG
+ struct shm_surface_leaf *leaf;
+ char bufs[MAX_LEAVES + 1];
+ int i;
+
+ for (i = 0; i < MAX_LEAVES; i++) {
+ leaf = &surface->leaf[i];
+
+ if (leaf->busy)
+ bufs[i] = 'b';
+ else if (leaf->cairo_surface)
+ bufs[i] = 'a';
+ else
+ bufs[i] = ' ';
+ }
+
+ bufs[MAX_LEAVES] = '\0';
+ DBG_OBJ(surface->surface, "%s, leaves [%s]\n", msg, bufs);
+#endif
+}
+
+static void
+shm_surface_buffer_release(void *data, struct wl_buffer *buffer)
+{
+ struct shm_surface *surface = data;
+ struct shm_surface_leaf *leaf;
+ int i;
+ int free_found;
+
+ shm_surface_buffer_state_debug(surface, "buffer_release before");
+
+ for (i = 0; i < MAX_LEAVES; i++) {
+ leaf = &surface->leaf[i];
+ if (leaf->data && leaf->data->buffer == buffer) {
+ leaf->busy = 0;
+ break;
+ }
+ }
+ assert(i < MAX_LEAVES && "unknown buffer released");
+
+ /* Leave one free leaf with storage, release others */
+ free_found = 0;
+ for (i = 0; i < MAX_LEAVES; i++) {
+ leaf = &surface->leaf[i];
+
+ if (!leaf->cairo_surface || leaf->busy)
+ continue;
+
+ if (!free_found)
+ free_found = 1;
+ else
+ shm_surface_leaf_release(leaf);
+ }
+
+ shm_surface_buffer_state_debug(surface, "buffer_release after");
+}
+
+static const struct wl_buffer_listener shm_surface_buffer_listener = {
+ shm_surface_buffer_release
+};
+
+static cairo_surface_t *
+shm_surface_prepare(struct toysurface *base, int dx, int dy,
+ int32_t width, int32_t height, uint32_t flags,
+ enum wl_output_transform buffer_transform, int32_t buffer_scale)
+{
+ int resize_hint = !!(flags & SURFACE_HINT_RESIZE);
+ struct shm_surface *surface = to_shm_surface(base);
+ struct rectangle rect = { 0};
+ struct shm_surface_leaf *leaf = NULL;
+ int i;
+
+ surface->dx = dx;
+ surface->dy = dy;
+
+ /* pick a free buffer, preferrably one that already has storage */
+ for (i = 0; i < MAX_LEAVES; i++) {
+ if (surface->leaf[i].busy)
+ continue;
+
+ if (!leaf || surface->leaf[i].cairo_surface)
+ leaf = &surface->leaf[i];
+ }
+ DBG_OBJ(surface->surface, "pick leaf %d\n",
+ (int)(leaf - &surface->leaf[0]));
+
+ if (!leaf) {
+ fprintf(stderr, "%s: all buffers are held by the server.\n",
+ __func__);
+ exit(1);
+ return NULL;
+ }
+
+ if (!resize_hint && leaf->resize_pool) {
+ cairo_surface_destroy(leaf->cairo_surface);
+ leaf->cairo_surface = NULL;
+ shm_pool_destroy(leaf->resize_pool);
+ leaf->resize_pool = NULL;
+ }
+
+ surface_to_buffer_size (buffer_transform, buffer_scale, &width, &height);
+
+ if (leaf->cairo_surface &&
+ cairo_image_surface_get_width(leaf->cairo_surface) == width &&
+ cairo_image_surface_get_height(leaf->cairo_surface) == height)
+ goto out;
+
+ if (leaf->cairo_surface)
+ cairo_surface_destroy(leaf->cairo_surface);
+
+#ifdef USE_RESIZE_POOL
+ if (resize_hint && !leaf->resize_pool) {
+ /* Create a big pool to allocate from, while continuously
+ * resizing. Mmapping a new pool in the server
+ * is relatively expensive, so reusing a pool performs
+ * better, but may temporarily reserve unneeded memory.
+ */
+ /* We should probably base this number on the output size. */
+ leaf->resize_pool = shm_pool_create(surface->display,
+ 6 * 1024 * 1024);
+ }
+#endif
+
+ rect.width = width;
+ rect.height = height;
+
+ leaf->cairo_surface =
+ display_create_shm_surface(surface->display, &rect,
+ surface->flags,
+ leaf->resize_pool,
+ &leaf->data);
+ wl_buffer_add_listener(leaf->data->buffer,
+ &shm_surface_buffer_listener, surface);
+
+out:
+ surface->current = leaf;
+
+ return cairo_surface_reference(leaf->cairo_surface);
+}
+
+static void
+shm_surface_swap(struct toysurface *base,
+ enum wl_output_transform buffer_transform, int32_t buffer_scale,
+ struct rectangle *server_allocation)
+{
+ struct shm_surface *surface = to_shm_surface(base);
+ struct shm_surface_leaf *leaf = surface->current;
+
+ server_allocation->width =
+ cairo_image_surface_get_width(leaf->cairo_surface);
+ server_allocation->height =
+ cairo_image_surface_get_height(leaf->cairo_surface);
+
+ buffer_to_surface_size (buffer_transform, buffer_scale,
+ &server_allocation->width,
+ &server_allocation->height);
+
+ wl_surface_attach(surface->surface, leaf->data->buffer,
+ surface->dx, surface->dy);
+ wl_surface_damage(surface->surface, 0, 0,
+ server_allocation->width, server_allocation->height);
+ wl_surface_commit(surface->surface);
+
+ DBG_OBJ(surface->surface, "leaf %d busy\n",
+ (int)(leaf - &surface->leaf[0]));
+
+ leaf->busy = 1;
+ surface->current = NULL;
+}
+
+static int
+shm_surface_acquire(struct toysurface *base, EGLContext ctx)
+{
+ return -1;
+}
+
+static void
+shm_surface_release(struct toysurface *base)
+{
+}
+
+static void
+shm_surface_destroy(struct toysurface *base)
+{
+ struct shm_surface *surface = to_shm_surface(base);
+ int i;
+
+ for (i = 0; i < MAX_LEAVES; i++)
+ shm_surface_leaf_release(&surface->leaf[i]);
+
+ free(surface);
+}
+
+static struct toysurface *
+shm_surface_create(struct display *display, struct wl_surface *wl_surface,
+ uint32_t flags, struct rectangle *rectangle)
+{
+ struct shm_surface *surface;
+ DBG_OBJ(wl_surface, "\n");
+
+ surface = calloc(1, sizeof *surface);
+ if (!surface)
+ return NULL;
+
+ surface->base.prepare = shm_surface_prepare;
+ surface->base.swap = shm_surface_swap;
+ surface->base.acquire = shm_surface_acquire;
+ surface->base.release = shm_surface_release;
+ surface->base.destroy = shm_surface_destroy;
+
+ surface->display = display;
+ surface->surface = wl_surface;
+ surface->flags = flags;
+
+ return &surface->base;
+}
+
+/*
+ * The following correspondences between file names and cursors was copied
+ * from: https://bugs.kde.org/attachment.cgi?id=67313
+ */
+
+static const char *bottom_left_corners[] = {
+ "bottom_left_corner",
+ "sw-resize",
+ "size_bdiag"
+};
+
+static const char *bottom_right_corners[] = {
+ "bottom_right_corner",
+ "se-resize",
+ "size_fdiag"
+};
+
+static const char *bottom_sides[] = {
+ "bottom_side",
+ "s-resize",
+ "size_ver"
+};
+
+static const char *grabbings[] = {
+ "grabbing",
+ "closedhand",
+ "208530c400c041818281048008011002"
+};
+
+static const char *left_ptrs[] = {
+ "left_ptr",
+ "default",
+ "top_left_arrow",
+ "left-arrow"
+};
+
+static const char *left_sides[] = {
+ "left_side",
+ "w-resize",
+ "size_hor"
+};
+
+static const char *right_sides[] = {
+ "right_side",
+ "e-resize",
+ "size_hor"
+};
+
+static const char *top_left_corners[] = {
+ "top_left_corner",
+ "nw-resize",
+ "size_fdiag"
+};
+
+static const char *top_right_corners[] = {
+ "top_right_corner",
+ "ne-resize",
+ "size_bdiag"
+};
+
+static const char *top_sides[] = {
+ "top_side",
+ "n-resize",
+ "size_ver"
+};
+
+static const char *xterms[] = {
+ "xterm",
+ "ibeam",
+ "text"
+};
+
+static const char *hand1s[] = {
+ "hand1",
+ "pointer",
+ "pointing_hand",
+ "e29285e634086352946a0e7090d73106"
+};
+
+static const char *watches[] = {
+ "watch",
+ "wait",
+ "0426c94ea35c87780ff01dc239897213"
+};
+
+struct cursor_alternatives {
+ const char **names;
+ size_t count;
+};
+
+static const struct cursor_alternatives cursors[] = {
+ {bottom_left_corners, ARRAY_LENGTH(bottom_left_corners)},
+ {bottom_right_corners, ARRAY_LENGTH(bottom_right_corners)},
+ {bottom_sides, ARRAY_LENGTH(bottom_sides)},
+ {grabbings, ARRAY_LENGTH(grabbings)},
+ {left_ptrs, ARRAY_LENGTH(left_ptrs)},
+ {left_sides, ARRAY_LENGTH(left_sides)},
+ {right_sides, ARRAY_LENGTH(right_sides)},
+ {top_left_corners, ARRAY_LENGTH(top_left_corners)},
+ {top_right_corners, ARRAY_LENGTH(top_right_corners)},
+ {top_sides, ARRAY_LENGTH(top_sides)},
+ {xterms, ARRAY_LENGTH(xterms)},
+ {hand1s, ARRAY_LENGTH(hand1s)},
+ {watches, ARRAY_LENGTH(watches)},
+};
+
+static void
+create_cursors(struct display *display)
+{
+ int config_fd;
+ char *theme = NULL;
+ unsigned int size = 32;
+ unsigned int i, j;
+ struct wl_cursor *cursor;
+ struct config_key shell_keys[] = {
+ { "cursor-theme", CONFIG_KEY_STRING, &theme },
+ { "cursor-size", CONFIG_KEY_UNSIGNED_INTEGER, &size },
+ };
+ struct config_section cs[] = {
+ { "shell", shell_keys, ARRAY_LENGTH(shell_keys), NULL },
+ };
+
+ config_fd = open_config_file("weston.ini");
+ parse_config_file(config_fd, cs, ARRAY_LENGTH(cs), NULL);
+ close(config_fd);
+
+ display->cursor_theme = wl_cursor_theme_load(theme, size, display->shm);
+ display->cursors =
+ malloc(ARRAY_LENGTH(cursors) * sizeof display->cursors[0]);
+
+ for (i = 0; i < ARRAY_LENGTH(cursors); i++) {
+ cursor = NULL;
+ for (j = 0; !cursor && j < cursors[i].count; ++j)
+ cursor = wl_cursor_theme_get_cursor(
+ display->cursor_theme, cursors[i].names[j]);
+
+ if (!cursor)
+ fprintf(stderr, "could not load cursor '%s'\n",
+ cursors[i].names[0]);
+
+ display->cursors[i] = cursor;
+ }
+}
+
+static void
+destroy_cursors(struct display *display)
+{
+ wl_cursor_theme_destroy(display->cursor_theme);
+ free(display->cursors);
+}
+
+struct wl_cursor_image *
+display_get_pointer_image(struct display *display, int pointer)
+{
+ struct wl_cursor *cursor = display->cursors[pointer];
+
+ return cursor ? cursor->images[0] : NULL;
+}
+
+static void
+surface_flush(struct surface *surface)
+{
+ if (!surface->cairo_surface)
+ return;
+
+ if (surface->opaque_region) {
+ wl_surface_set_opaque_region(surface->surface,
+ surface->opaque_region);
+ wl_region_destroy(surface->opaque_region);
+ surface->opaque_region = NULL;
+ }
+
+ if (surface->input_region) {
+ wl_surface_set_input_region(surface->surface,
+ surface->input_region);
+ wl_region_destroy(surface->input_region);
+ surface->input_region = NULL;
+ }
+
+ surface->toysurface->swap(surface->toysurface,
+ surface->buffer_transform, surface->buffer_scale,
+ &surface->server_allocation);
+
+ cairo_surface_destroy(surface->cairo_surface);
+ surface->cairo_surface = NULL;
+}
+
+int
+window_has_focus(struct window *window)
+{
+ return window->focus_count > 0;
+}
+
+static void
+window_flush(struct window *window)
+{
+ struct surface *surface;
+
+ if (window->type == TYPE_NONE) {
+ window->type = TYPE_TOPLEVEL;
+ if (window->shell_surface)
+ xdg_surface_set_toplevel(window->shell_surface);
+ }
+
+ wl_list_for_each(surface, &window->subsurface_list, link) {
+ if (surface == window->main_surface)
+ continue;
+
+ surface_flush(surface);
+ }
+
+ surface_flush(window->main_surface);
+}
+
+struct display *
+window_get_display(struct window *window)
+{
+ return window->display;
+}
+
+static void
+surface_create_surface(struct surface *surface, int dx, int dy, uint32_t flags)
+{
+ struct display *display = surface->window->display;
+ struct rectangle allocation = surface->allocation;
+
+ if (!surface->toysurface && display->dpy &&
+ surface->buffer_type == WINDOW_BUFFER_TYPE_EGL_WINDOW) {
+ surface->toysurface =
+ egl_window_surface_create(display,
+ surface->surface,
+ flags,
+ &allocation);
+ }
+
+ if (!surface->toysurface)
+ surface->toysurface = shm_surface_create(display,
+ surface->surface,
+ flags, &allocation);
+
+ surface->cairo_surface = surface->toysurface->prepare(
+ surface->toysurface, dx, dy,
+ allocation.width, allocation.height, flags,
+ surface->buffer_transform, surface->buffer_scale);
+}
+
+static void
+window_create_main_surface(struct window *window)
+{
+ struct surface *surface = window->main_surface;
+ uint32_t flags = 0;
+ int dx = 0;
+ int dy = 0;
+
+ if (window->resizing)
+ flags |= SURFACE_HINT_RESIZE;
+
+ if (window->resize_edges & WINDOW_RESIZING_LEFT)
+ dx = surface->server_allocation.width -
+ surface->allocation.width;
+
+ if (window->resize_edges & WINDOW_RESIZING_TOP)
+ dy = surface->server_allocation.height -
+ surface->allocation.height;
+
+ window->resize_edges = 0;
+
+ surface_create_surface(surface, dx, dy, flags);
+}
+
+int
+window_get_buffer_transform(struct window *window)
+{
+ return window->main_surface->buffer_transform;
+}
+
+void
+window_set_buffer_transform(struct window *window,
+ enum wl_output_transform transform)
+{
+ window->main_surface->buffer_transform = transform;
+ wl_surface_set_buffer_transform(window->main_surface->surface,
+ transform);
+}
+
+void
+window_set_buffer_scale(struct window *window,
+ int32_t scale)
+{
+ window->main_surface->buffer_scale = scale;
+ wl_surface_set_buffer_scale(window->main_surface->surface,
+ scale);
+}
+
+uint32_t
+window_get_buffer_scale(struct window *window)
+{
+ return window->main_surface->buffer_scale;
+}
+
+uint32_t
+window_get_output_scale(struct window *window)
+{
+ struct window_output *window_output;
+ struct window_output *window_output_tmp;
+ int scale = 1;
+
+ wl_list_for_each_safe(window_output, window_output_tmp,
+ &window->window_output_list, link) {
+ if (window_output->output->scale > scale)
+ scale = window_output->output->scale;
+ }
+
+ return scale;
+}
+
+static void frame_destroy(struct frame *frame);
+
+static void
+surface_destroy(struct surface *surface)
+{
+ if (surface->frame_cb)
+ wl_callback_destroy(surface->frame_cb);
+
+ if (surface->input_region)
+ wl_region_destroy(surface->input_region);
+
+ if (surface->opaque_region)
+ wl_region_destroy(surface->opaque_region);
+
+ if (surface->subsurface)
+ wl_subsurface_destroy(surface->subsurface);
+
+ wl_surface_destroy(surface->surface);
+
+ if (surface->toysurface)
+ surface->toysurface->destroy(surface->toysurface);
+
+ wl_list_remove(&surface->link);
+ free(surface);
+}
+
+void
+window_destroy(struct window *window)
+{
+ struct display *display = window->display;
+ struct input *input;
+ struct window_output *window_output;
+ struct window_output *window_output_tmp;
+
+ wl_list_remove(&window->redraw_task.link);
+
+ wl_list_for_each(input, &display->input_list, link) {
+ if (input->pointer_focus == window)
+ input->pointer_focus = NULL;
+ if (input->keyboard_focus == window)
+ input->keyboard_focus = NULL;
+ if (input->focus_widget &&
+ input->focus_widget->window == window)
+ input->focus_widget = NULL;
+ }
+
+ wl_list_for_each_safe(window_output, window_output_tmp,
+ &window->window_output_list, link) {
+ free (window_output);
+ }
+
+ if (window->frame)
+ frame_destroy(window->frame);
+
+ if (window->shell_surface)
+ xdg_surface_destroy(window->shell_surface);
+
+ surface_destroy(window->main_surface);
+
+ wl_list_remove(&window->link);
+
+ free(window->title);
+ free(window);
+}
+
+static struct widget *
+widget_find_widget(struct widget *widget, int32_t x, int32_t y)
+{
+ struct widget *child, *target;
+
+ wl_list_for_each(child, &widget->child_list, link) {
+ target = widget_find_widget(child, x, y);
+ if (target)
+ return target;
+ }
+
+ if (widget->allocation.x <= x &&
+ x < widget->allocation.x + widget->allocation.width &&
+ widget->allocation.y <= y &&
+ y < widget->allocation.y + widget->allocation.height) {
+ return widget;
+ }
+
+ return NULL;
+}
+
+static struct widget *
+window_find_widget(struct window *window, int32_t x, int32_t y)
+{
+ struct surface *surface;
+ struct widget *widget;
+
+ wl_list_for_each(surface, &window->subsurface_list, link) {
+ widget = widget_find_widget(surface->widget, x, y);
+ if (widget)
+ return widget;
+ }
+
+ return NULL;
+}
+
+static struct widget *
+widget_create(struct window *window, struct surface *surface, void *data)
+{
+ struct widget *widget;
+
+ widget = malloc(sizeof *widget);
+ memset(widget, 0, sizeof *widget);
+ widget->window = window;
+ widget->surface = surface;
+ widget->user_data = data;
+ widget->allocation = surface->allocation;
+ wl_list_init(&widget->child_list);
+ widget->opaque = 0;
+ widget->tooltip = NULL;
+ widget->tooltip_count = 0;
+ widget->default_cursor = CURSOR_LEFT_PTR;
+
+ return widget;
+}
+
+struct widget *
+window_add_widget(struct window *window, void *data)
+{
+ struct widget *widget;
+
+ widget = widget_create(window, window->main_surface, data);
+ wl_list_init(&widget->link);
+ window->main_surface->widget = widget;
+
+ return widget;
+}
+
+struct widget *
+widget_add_widget(struct widget *parent, void *data)
+{
+ struct widget *widget;
+
+ widget = widget_create(parent->window, parent->surface, data);
+ wl_list_insert(parent->child_list.prev, &widget->link);
+
+ return widget;
+}
+
+void
+widget_destroy(struct widget *widget)
+{
+ struct display *display = widget->window->display;
+ struct surface *surface = widget->surface;
+ struct input *input;
+
+ /* Destroy the sub-surface along with the root widget */
+ if (surface->widget == widget && surface->subsurface)
+ surface_destroy(widget->surface);
+
+ if (widget->tooltip) {
+ free(widget->tooltip);
+ widget->tooltip = NULL;
+ }
+
+ wl_list_for_each(input, &display->input_list, link) {
+ if (input->focus_widget == widget)
+ input->focus_widget = NULL;
+ }
+
+ wl_list_remove(&widget->link);
+ free(widget);
+}
+
+void
+widget_set_default_cursor(struct widget *widget, int cursor)
+{
+ widget->default_cursor = cursor;
+}
+
+void
+widget_get_allocation(struct widget *widget, struct rectangle *allocation)
+{
+ *allocation = widget->allocation;
+}
+
+void
+widget_set_size(struct widget *widget, int32_t width, int32_t height)
+{
+ widget->allocation.width = width;
+ widget->allocation.height = height;
+}
+
+void
+widget_set_allocation(struct widget *widget,
+ int32_t x, int32_t y, int32_t width, int32_t height)
+{
+ widget->allocation.x = x;
+ widget->allocation.y = y;
+ widget_set_size(widget, width, height);
+}
+
+void
+widget_set_transparent(struct widget *widget, int transparent)
+{
+ widget->opaque = !transparent;
+}
+
+void *
+widget_get_user_data(struct widget *widget)
+{
+ return widget->user_data;
+}
+
+static cairo_surface_t *
+widget_get_cairo_surface(struct widget *widget)
+{
+ struct surface *surface = widget->surface;
+ struct window *window = widget->window;
+
+ if (!surface->cairo_surface) {
+ if (surface == window->main_surface)
+ window_create_main_surface(window);
+ else
+ surface_create_surface(surface, 0, 0, 0);
+ }
+
+ return surface->cairo_surface;
+}
+
+static void
+widget_cairo_update_transform(struct widget *widget, cairo_t *cr)
+{
+ struct surface *surface = widget->surface;
+ double angle;
+ cairo_matrix_t m;
+ enum wl_output_transform transform;
+ int surface_width, surface_height;
+ int translate_x, translate_y;
+ int32_t scale;
+
+ surface_width = surface->allocation.width;
+ surface_height = surface->allocation.height;
+
+ transform = surface->buffer_transform;
+ scale = surface->buffer_scale;
+
+ switch (transform) {
+ case WL_OUTPUT_TRANSFORM_FLIPPED:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_90:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_180:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_270:
+ cairo_matrix_init(&m, -1, 0, 0, 1, 0, 0);
+ break;
+ default:
+ cairo_matrix_init_identity(&m);
+ break;
+ }
+
+ switch (transform) {
+ case WL_OUTPUT_TRANSFORM_NORMAL:
+ default:
+ angle = 0;
+ translate_x = 0;
+ translate_y = 0;
+ break;
+ case WL_OUTPUT_TRANSFORM_FLIPPED:
+ angle = 0;
+ translate_x = surface_width;
+ translate_y = 0;
+ break;
+ case WL_OUTPUT_TRANSFORM_90:
+ angle = M_PI_2;
+ translate_x = surface_height;
+ translate_y = 0;
+ break;
+ case WL_OUTPUT_TRANSFORM_FLIPPED_90:
+ angle = M_PI_2;
+ translate_x = surface_height;
+ translate_y = surface_width;
+ break;
+ case WL_OUTPUT_TRANSFORM_180:
+ angle = M_PI;
+ translate_x = surface_width;
+ translate_y = surface_height;
+ break;
+ case WL_OUTPUT_TRANSFORM_FLIPPED_180:
+ angle = M_PI;
+ translate_x = 0;
+ translate_y = surface_height;
+ break;
+ case WL_OUTPUT_TRANSFORM_270:
+ angle = M_PI + M_PI_2;
+ translate_x = 0;
+ translate_y = surface_width;
+ break;
+ case WL_OUTPUT_TRANSFORM_FLIPPED_270:
+ angle = M_PI + M_PI_2;
+ translate_x = 0;
+ translate_y = 0;
+ break;
+ }
+
+ cairo_scale(cr, scale, scale);
+ cairo_translate(cr, translate_x, translate_y);
+ cairo_rotate(cr, angle);
+ cairo_transform(cr, &m);
+}
+
+cairo_t *
+widget_cairo_create(struct widget *widget)
+{
+ struct surface *surface = widget->surface;
+ cairo_surface_t *cairo_surface;
+ cairo_t *cr;
+
+ cairo_surface = widget_get_cairo_surface(widget);
+ cr = cairo_create(cairo_surface);
+
+ widget_cairo_update_transform(widget, cr);
+
+ cairo_translate(cr, -surface->allocation.x, -surface->allocation.y);
+
+ return cr;
+}
+
+struct wl_surface *
+widget_get_wl_surface(struct widget *widget)
+{
+ return widget->surface->surface;
+}
+
+uint32_t
+widget_get_last_time(struct widget *widget)
+{
+ return widget->surface->last_time;
+}
+
+void
+widget_input_region_add(struct widget *widget, const struct rectangle *rect)
+{
+ struct wl_compositor *comp = widget->window->display->compositor;
+ struct surface *surface = widget->surface;
+
+ if (!surface->input_region)
+ surface->input_region = wl_compositor_create_region(comp);
+
+ if (rect) {
+ wl_region_add(surface->input_region,
+ rect->x, rect->y, rect->width, rect->height);
+ }
+}
+
+void
+widget_set_resize_handler(struct widget *widget,
+ widget_resize_handler_t handler)
+{
+ widget->resize_handler = handler;
+}
+
+void
+widget_set_redraw_handler(struct widget *widget,
+ widget_redraw_handler_t handler)
+{
+ widget->redraw_handler = handler;
+}
+
+void
+widget_set_enter_handler(struct widget *widget, widget_enter_handler_t handler)
+{
+ widget->enter_handler = handler;
+}
+
+void
+widget_set_leave_handler(struct widget *widget, widget_leave_handler_t handler)
+{
+ widget->leave_handler = handler;
+}
+
+void
+widget_set_motion_handler(struct widget *widget,
+ widget_motion_handler_t handler)
+{
+ widget->motion_handler = handler;
+}
+
+void
+widget_set_button_handler(struct widget *widget,
+ widget_button_handler_t handler)
+{
+ widget->button_handler = handler;
+}
+
+void
+widget_set_axis_handler(struct widget *widget,
+ widget_axis_handler_t handler)
+{
+ widget->axis_handler = handler;
+}
+
+static void
+window_schedule_redraw_task(struct window *window);
+
+void
+widget_schedule_redraw(struct widget *widget)
+{
+ DBG_OBJ(widget->surface->surface, "widget %p\n", widget);
+ widget->surface->redraw_needed = 1;
+ window_schedule_redraw_task(widget->window);
+}
+
+cairo_surface_t *
+window_get_surface(struct window *window)
+{
+ cairo_surface_t *cairo_surface;
+
+ cairo_surface = widget_get_cairo_surface(window->main_surface->widget);
+
+ return cairo_surface_reference(cairo_surface);
+}
+
+struct wl_surface *
+window_get_wl_surface(struct window *window)
+{
+ return window->main_surface->surface;
+}
+
+struct xdg_surface *
+window_get_xdg_surface(struct window *window)
+{
+ return window->shell_surface;
+}
+
+static void
+tooltip_redraw_handler(struct widget *widget, void *data)
+{
+ cairo_t *cr;
+ const int32_t r = 3;
+ struct tooltip *tooltip = data;
+ int32_t width, height;
+
+ cr = widget_cairo_create(widget);
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
+ cairo_paint(cr);
+
+ width = widget->allocation.width;
+ height = widget->allocation.height;
+ rounded_rect(cr, 0, 0, width, height, r);
+
+ cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+ cairo_set_source_rgba(cr, 0.0, 0.0, 0.4, 0.8);
+ cairo_fill(cr);
+
+ cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+ cairo_move_to(cr, 10, 16);
+ cairo_show_text(cr, tooltip->entry);
+ cairo_destroy(cr);
+}
+
+static cairo_text_extents_t
+get_text_extents(struct tooltip *tooltip)
+{
+ cairo_t *cr;
+ cairo_text_extents_t extents;
+
+ /* Use the dummy_surface because tooltip's surface was not
+ * created yet, and parent does not have a valid surface
+ * outside repaint, either.
+ */
+ cr = cairo_create(tooltip->window->display->dummy_surface);
+ cairo_text_extents(cr, tooltip->entry, &extents);
+ cairo_destroy(cr);
+
+ return extents;
+}
+
+static int
+window_create_tooltip(struct tooltip *tooltip)
+{
+ struct widget *parent = tooltip->parent;
+ struct display *display = parent->window->display;
+ struct window *window;
+ const int offset_y = 27;
+ const int margin = 3;
+ cairo_text_extents_t extents;
+
+ if (tooltip->widget)
+ return 0;
+
+ window = window_create_transient(display, parent->window, tooltip->x,
+ tooltip->y + offset_y,
+ XDG_SURFACE_TRANSIENT_INACTIVE);
+ if (!window)
+ return -1;
+
+ tooltip->window = window;
+ tooltip->widget = window_add_widget(tooltip->window, tooltip);
+
+ extents = get_text_extents(tooltip);
+ widget_set_redraw_handler(tooltip->widget, tooltip_redraw_handler);
+ window_schedule_resize(window, extents.width + 20, 20 + margin * 2);
+
+ return 0;
+}
+
+void
+widget_destroy_tooltip(struct widget *parent)
+{
+ struct tooltip *tooltip = parent->tooltip;
+
+ parent->tooltip_count = 0;
+ if (!tooltip)
+ return;
+
+ if (tooltip->widget) {
+ widget_destroy(tooltip->widget);
+ window_destroy(tooltip->window);
+ tooltip->widget = NULL;
+ tooltip->window = NULL;
+ }
+
+ close(tooltip->tooltip_fd);
+ free(tooltip->entry);
+ free(tooltip);
+ parent->tooltip = NULL;
+}
+
+static void
+tooltip_func(struct task *task, uint32_t events)
+{
+ struct tooltip *tooltip =
+ container_of(task, struct tooltip, tooltip_task);
+ uint64_t exp;
+
+ if (read(tooltip->tooltip_fd, &exp, sizeof (uint64_t)) != sizeof (uint64_t))
+ abort();
+ window_create_tooltip(tooltip);
+}
+
+#define TOOLTIP_TIMEOUT 500
+static int
+tooltip_timer_reset(struct tooltip *tooltip)
+{
+ struct itimerspec its;
+
+ its.it_interval.tv_sec = 0;
+ its.it_interval.tv_nsec = 0;
+ its.it_value.tv_sec = TOOLTIP_TIMEOUT / 1000;
+ its.it_value.tv_nsec = (TOOLTIP_TIMEOUT % 1000) * 1000 * 1000;
+ if (timerfd_settime(tooltip->tooltip_fd, 0, &its, NULL) < 0) {
+ fprintf(stderr, "could not set timerfd\n: %m");
+ return -1;
+ }
+
+ return 0;
+}
+
+int
+widget_set_tooltip(struct widget *parent, char *entry, float x, float y)
+{
+ struct tooltip *tooltip = parent->tooltip;
+
+ parent->tooltip_count++;
+ if (tooltip) {
+ tooltip->x = x;
+ tooltip->y = y;
+ tooltip_timer_reset(tooltip);
+ return 0;
+ }
+
+ /* the handler might be triggered too fast via input device motion, so
+ * we need this check here to make sure tooltip is fully initialized */
+ if (parent->tooltip_count > 1)
+ return 0;
+
+ tooltip = malloc(sizeof *tooltip);
+ if (!tooltip)
+ return -1;
+
+ parent->tooltip = tooltip;
+ tooltip->parent = parent;
+ tooltip->widget = NULL;
+ tooltip->window = NULL;
+ tooltip->x = x;
+ tooltip->y = y;
+ tooltip->entry = strdup(entry);
+ tooltip->tooltip_fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
+ if (tooltip->tooltip_fd < 0) {
+ fprintf(stderr, "could not create timerfd\n: %m");
+ return -1;
+ }
+
+ tooltip->tooltip_task.run = tooltip_func;
+ display_watch_fd(parent->window->display, tooltip->tooltip_fd,
+ EPOLLIN, &tooltip->tooltip_task);
+ tooltip_timer_reset(tooltip);
+
+ return 0;
+}
+
+static void
+workspace_manager_state(void *data,
+ struct workspace_manager *workspace_manager,
+ uint32_t current,
+ uint32_t count)
+{
+ struct display *display = data;
+
+ display->workspace = current;
+ display->workspace_count = count;
+}
+
+static const struct workspace_manager_listener workspace_manager_listener = {
+ workspace_manager_state
+};
+
+static void
+frame_resize_handler(struct widget *widget,
+ int32_t width, int32_t height, void *data)
+{
+ struct frame *frame = data;
+ struct widget *child = frame->child;
+ struct rectangle allocation;
+ struct display *display = widget->window->display;
+ struct surface *surface = widget->surface;
+ struct frame_button * button;
+ struct theme *t = display->theme;
+ int x_l, x_r, y, w, h;
+ int decoration_width, decoration_height;
+ int opaque_margin, shadow_margin;
+
+ switch (widget->window->type) {
+ case TYPE_FULLSCREEN:
+ decoration_width = 0;
+ decoration_height = 0;
+
+ allocation.x = 0;
+ allocation.y = 0;
+ allocation.width = width;
+ allocation.height = height;
+ opaque_margin = 0;
+
+ wl_list_for_each(button, &frame->buttons_list, link)
+ button->widget->opaque = 1;
+ break;
+ case TYPE_MAXIMIZED:
+ decoration_width = t->width * 2;
+ decoration_height = t->width + t->titlebar_height;
+
+ allocation.x = t->width;
+ allocation.y = t->titlebar_height;
+ allocation.width = width - decoration_width;
+ allocation.height = height - decoration_height;
+
+ opaque_margin = 0;
+
+ wl_list_for_each(button, &frame->buttons_list, link)
+ button->widget->opaque = 0;
+ break;
+ default:
+ decoration_width = (t->width + t->margin) * 2;
+ decoration_height = t->width +
+ t->titlebar_height + t->margin * 2;
+
+ allocation.x = t->width + t->margin;
+ allocation.y = t->titlebar_height + t->margin;
+ allocation.width = width - decoration_width;
+ allocation.height = height - decoration_height;
+
+ opaque_margin = t->margin + t->frame_radius;
+
+ wl_list_for_each(button, &frame->buttons_list, link)
+ button->widget->opaque = 0;
+ break;
+ }
+
+ widget_set_allocation(child, allocation.x, allocation.y,
+ allocation.width, allocation.height);
+
+ if (child->resize_handler)
+ child->resize_handler(child,
+ allocation.width,
+ allocation.height,
+ child->user_data);
+
+ width = child->allocation.width + decoration_width;
+ height = child->allocation.height + decoration_height;
+
+ shadow_margin = widget->window->type == TYPE_MAXIMIZED ? 0 : t->margin;
+
+ surface->input_region =
+ wl_compositor_create_region(display->compositor);
+ if (widget->window->type != TYPE_FULLSCREEN) {
+ wl_region_add(surface->input_region,
+ shadow_margin, shadow_margin,
+ width - 2 * shadow_margin,
+ height - 2 * shadow_margin);
+ } else {
+ wl_region_add(surface->input_region, 0, 0, width, height);
+ }
+
+ widget_set_allocation(widget, 0, 0, width, height);
+
+ if (child->opaque)
+ wl_region_add(surface->opaque_region,
+ opaque_margin, opaque_margin,
+ widget->allocation.width - 2 * opaque_margin,
+ widget->allocation.height - 2 * opaque_margin);
+
+ /* frame internal buttons */
+ x_r = frame->widget->allocation.width - t->width - shadow_margin;
+ x_l = t->width + shadow_margin;
+ y = t->width + shadow_margin;
+ wl_list_for_each(button, &frame->buttons_list, link) {
+ const int button_padding = 4;
+ w = cairo_image_surface_get_width(button->icon);
+ h = cairo_image_surface_get_height(button->icon);
+
+ if (button->decoration == FRAME_BUTTON_FANCY)
+ w += 10;
+
+ if (button->align == FRAME_BUTTON_LEFT) {
+ widget_set_allocation(button->widget,
+ x_l, y , w + 1, h + 1);
+ x_l += w;
+ x_l += button_padding;
+ } else {
+ x_r -= w;
+ widget_set_allocation(button->widget,
+ x_r, y , w + 1, h + 1);
+ x_r -= button_padding;
+ }
+ }
+}
+
+static int
+frame_button_enter_handler(struct widget *widget,
+ struct input *input, float x, float y, void *data)
+{
+ struct frame_button *frame_button = data;
+
+ widget_schedule_redraw(frame_button->widget);
+ frame_button->state = FRAME_BUTTON_OVER;
+
+ return CURSOR_LEFT_PTR;
+}
+
+static void
+frame_button_leave_handler(struct widget *widget, struct input *input, void *data)
+{
+ struct frame_button *frame_button = data;
+
+ widget_schedule_redraw(frame_button->widget);
+ frame_button->state = FRAME_BUTTON_DEFAULT;
+}
+
+static void
+frame_button_button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button,
+ enum wl_pointer_button_state state, void *data)
+{
+ struct frame_button *frame_button = data;
+ struct window *window = widget->window;
+ int was_pressed = (frame_button->state == FRAME_BUTTON_ACTIVE);
+
+ if (button != BTN_LEFT)
+ return;
+
+ switch (state) {
+ case WL_POINTER_BUTTON_STATE_PRESSED:
+ frame_button->state = FRAME_BUTTON_ACTIVE;
+ widget_schedule_redraw(frame_button->widget);
+
+ if (frame_button->type == FRAME_BUTTON_ICON)
+ window_show_frame_menu(window, input, time);
+ return;
+ case WL_POINTER_BUTTON_STATE_RELEASED:
+ frame_button->state = FRAME_BUTTON_DEFAULT;
+ widget_schedule_redraw(frame_button->widget);
+ break;
+ }
+
+ if (!was_pressed)
+ return;
+
+ switch (frame_button->type) {
+ case FRAME_BUTTON_CLOSE:
+ if (window->close_handler)
+ window->close_handler(window->parent,
+ window->user_data);
+ else
+ display_exit(window->display);
+ break;
+ case FRAME_BUTTON_MINIMIZE:
+ fprintf(stderr,"Minimize stub\n");
+ break;
+ case FRAME_BUTTON_MAXIMIZE:
+ window_set_maximized(window, window->type != TYPE_MAXIMIZED);
+ break;
+ default:
+ /* Unknown operation */
+ break;
+ }
+}
+
+static int
+frame_button_motion_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ float x, float y, void *data)
+{
+ struct frame_button *frame_button = data;
+ enum frame_button_pointer previous_button_state = frame_button->state;
+
+ /* only track state for a pressed button */
+ if (input->grab != widget)
+ return CURSOR_LEFT_PTR;
+
+ if (x > widget->allocation.x &&
+ x < (widget->allocation.x + widget->allocation.width) &&
+ y > widget->allocation.y &&
+ y < (widget->allocation.y + widget->allocation.height)) {
+ frame_button->state = FRAME_BUTTON_ACTIVE;
+ } else {
+ frame_button->state = FRAME_BUTTON_DEFAULT;
+ }
+
+ if (frame_button->state != previous_button_state)
+ widget_schedule_redraw(frame_button->widget);
+
+ return CURSOR_LEFT_PTR;
+}
+
+static void
+frame_button_redraw_handler(struct widget *widget, void *data)
+{
+ struct frame_button *frame_button = data;
+ cairo_t *cr;
+ int width, height, x, y;
+
+ x = widget->allocation.x;
+ y = widget->allocation.y;
+ width = widget->allocation.width;
+ height = widget->allocation.height;
+
+ if (!width)
+ return;
+ if (!height)
+ return;
+ if (widget->opaque)
+ return;
+
+ cr = widget_cairo_create(widget);
+
+ if (frame_button->decoration == FRAME_BUTTON_FANCY) {
+ cairo_set_line_width(cr, 1);
+
+ cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
+ cairo_rectangle (cr, x, y, 25, 16);
+
+ cairo_stroke_preserve(cr);
+
+ switch (frame_button->state) {
+ case FRAME_BUTTON_DEFAULT:
+ cairo_set_source_rgb(cr, 0.88, 0.88, 0.88);
+ break;
+ case FRAME_BUTTON_OVER:
+ cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+ break;
+ case FRAME_BUTTON_ACTIVE:
+ cairo_set_source_rgb(cr, 0.7, 0.7, 0.7);
+ break;
+ }
+
+ cairo_fill (cr);
+
+ x += 4;
+ }
+
+ cairo_set_source_surface(cr, frame_button->icon, x, y);
+ cairo_paint(cr);
+
+ cairo_destroy(cr);
+}
+
+static struct widget *
+frame_button_create(struct frame *frame, void *data, enum frame_button_action type,
+ enum frame_button_align align, enum frame_button_decoration style)
+{
+ struct frame_button *frame_button;
+ const char *icon = data;
+
+ frame_button = malloc (sizeof *frame_button);
+ memset(frame_button, 0, sizeof *frame_button);
+
+ frame_button->icon = cairo_image_surface_create_from_png(icon);
+ frame_button->widget = widget_add_widget(frame->widget, frame_button);
+ frame_button->frame = frame;
+ frame_button->type = type;
+ frame_button->align = align;
+ frame_button->decoration = style;
+
+ wl_list_insert(frame->buttons_list.prev, &frame_button->link);
+
+ widget_set_redraw_handler(frame_button->widget, frame_button_redraw_handler);
+ widget_set_enter_handler(frame_button->widget, frame_button_enter_handler);
+ widget_set_leave_handler(frame_button->widget, frame_button_leave_handler);
+ widget_set_button_handler(frame_button->widget, frame_button_button_handler);
+ widget_set_motion_handler(frame_button->widget, frame_button_motion_handler);
+ return frame_button->widget;
+}
+
+static void
+frame_button_destroy(struct frame_button *frame_button)
+{
+ widget_destroy(frame_button->widget);
+ wl_list_remove(&frame_button->link);
+ cairo_surface_destroy(frame_button->icon);
+ free(frame_button);
+
+ return;
+}
+
+static void
+frame_redraw_handler(struct widget *widget, void *data)
+{
+ cairo_t *cr;
+ struct window *window = widget->window;
+ struct theme *t = window->display->theme;
+ uint32_t flags = 0;
+
+ if (window->type == TYPE_FULLSCREEN)
+ return;
+
+ cr = widget_cairo_create(widget);
+
+ if (window->focus_count)
+ flags |= THEME_FRAME_ACTIVE;
+ if (window->type == TYPE_MAXIMIZED)
+ flags |= THEME_FRAME_MAXIMIZED;
+ theme_render_frame(t, cr, widget->allocation.width,
+ widget->allocation.height, window->title, flags);
+
+ cairo_destroy(cr);
+}
+
+static int
+frame_get_pointer_image_for_location(struct frame *frame, struct input *input)
+{
+ struct theme *t = frame->widget->window->display->theme;
+ struct window *window = frame->widget->window;
+ int location;
+
+ if (window->type != TYPE_TOPLEVEL)
+ return CURSOR_LEFT_PTR;
+
+ location = theme_get_location(t, input->sx, input->sy,
+ frame->widget->allocation.width,
+ frame->widget->allocation.height,
+ window->type == TYPE_MAXIMIZED ?
+ THEME_FRAME_MAXIMIZED : 0);
+
+ switch (location) {
+ case THEME_LOCATION_RESIZING_TOP:
+ return CURSOR_TOP;
+ case THEME_LOCATION_RESIZING_BOTTOM:
+ return CURSOR_BOTTOM;
+ case THEME_LOCATION_RESIZING_LEFT:
+ return CURSOR_LEFT;
+ case THEME_LOCATION_RESIZING_RIGHT:
+ return CURSOR_RIGHT;
+ case THEME_LOCATION_RESIZING_TOP_LEFT:
+ return CURSOR_TOP_LEFT;
+ case THEME_LOCATION_RESIZING_TOP_RIGHT:
+ return CURSOR_TOP_RIGHT;
+ case THEME_LOCATION_RESIZING_BOTTOM_LEFT:
+ return CURSOR_BOTTOM_LEFT;
+ case THEME_LOCATION_RESIZING_BOTTOM_RIGHT:
+ return CURSOR_BOTTOM_RIGHT;
+ case THEME_LOCATION_EXTERIOR:
+ case THEME_LOCATION_TITLEBAR:
+ default:
+ return CURSOR_LEFT_PTR;
+ }
+}
+
+static void
+frame_menu_func(struct window *window, int index, void *data)
+{
+ struct display *display;
+
+ switch (index) {
+ case 0: /* close */
+ if (window->close_handler)
+ window->close_handler(window->parent,
+ window->user_data);
+ else
+ display_exit(window->display);
+ break;
+ case 1: /* move to workspace above */
+ display = window->display;
+ if (display->workspace > 0)
+ workspace_manager_move_surface(
+ display->workspace_manager,
+ window->main_surface->surface,
+ display->workspace - 1);
+ break;
+ case 2: /* move to workspace below */
+ display = window->display;
+ if (display->workspace < display->workspace_count - 1)
+ workspace_manager_move_surface(
+ display->workspace_manager,
+ window->main_surface->surface,
+ display->workspace + 1);
+ break;
+ case 3: /* fullscreen */
+ /* we don't have a way to get out of fullscreen for now */
+ if (window->fullscreen_handler)
+ window->fullscreen_handler(window, window->user_data);
+ break;
+ }
+}
+
+void
+window_show_frame_menu(struct window *window,
+ struct input *input, uint32_t time)
+{
+ int32_t x, y;
+ int count;
+
+ static const char *entries[] = {
+ "Close",
+ "Move to workspace above", "Move to workspace below",
+ "Fullscreen"
+ };
+
+ if (window->fullscreen_handler)
+ count = ARRAY_LENGTH(entries);
+ else
+ count = ARRAY_LENGTH(entries) - 1;
+
+ input_get_position(input, &x, &y);
+ window_show_menu(window->display, input, time, window,
+ x - 10, y - 10, frame_menu_func, entries, count);
+}
+
+static int
+frame_enter_handler(struct widget *widget,
+ struct input *input, float x, float y, void *data)
+{
+ return frame_get_pointer_image_for_location(data, input);
+}
+
+static int
+frame_motion_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ float x, float y, void *data)
+{
+ return frame_get_pointer_image_for_location(data, input);
+}
+
+static void
+frame_button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button, enum wl_pointer_button_state state,
+ void *data)
+
+{
+ struct frame *frame = data;
+ struct window *window = widget->window;
+ struct display *display = window->display;
+ int location;
+
+ if (state != WL_POINTER_BUTTON_STATE_PRESSED)
+ return;
+
+ location = theme_get_location(display->theme, input->sx, input->sy,
+ frame->widget->allocation.width,
+ frame->widget->allocation.height,
+ window->type == TYPE_MAXIMIZED ?
+ THEME_FRAME_MAXIMIZED : 0);
+
+ if (window->display->shell && button == BTN_LEFT &&
+ window->type == TYPE_TOPLEVEL) {
+ switch (location) {
+ case THEME_LOCATION_TITLEBAR:
+ if (!window->shell_surface)
+ break;
+ input_ungrab(input);
+ xdg_surface_move(window->shell_surface,
+ input_get_seat(input),
+ display->serial);
+ break;
+ case THEME_LOCATION_RESIZING_TOP:
+ case THEME_LOCATION_RESIZING_BOTTOM:
+ case THEME_LOCATION_RESIZING_LEFT:
+ case THEME_LOCATION_RESIZING_RIGHT:
+ case THEME_LOCATION_RESIZING_TOP_LEFT:
+ case THEME_LOCATION_RESIZING_TOP_RIGHT:
+ case THEME_LOCATION_RESIZING_BOTTOM_LEFT:
+ case THEME_LOCATION_RESIZING_BOTTOM_RIGHT:
+ if (!window->shell_surface)
+ break;
+ input_ungrab(input);
+
+ window->resizing = 1;
+ xdg_surface_resize(window->shell_surface,
+ input_get_seat(input),
+ display->serial, location);
+ break;
+ }
+ } else if (button == BTN_RIGHT &&
+ (window->type == TYPE_TOPLEVEL ||
+ window->type == TYPE_MAXIMIZED)) {
+ window_show_frame_menu(window, input, time);
+ }
+}
+
+struct widget *
+frame_create(struct window *window, void *data)
+{
+ struct frame *frame;
+
+ frame = malloc(sizeof *frame);
+ memset(frame, 0, sizeof *frame);
+
+ frame->widget = window_add_widget(window, frame);
+ frame->child = widget_add_widget(frame->widget, data);
+
+ widget_set_redraw_handler(frame->widget, frame_redraw_handler);
+ widget_set_resize_handler(frame->widget, frame_resize_handler);
+ widget_set_enter_handler(frame->widget, frame_enter_handler);
+ widget_set_motion_handler(frame->widget, frame_motion_handler);
+ widget_set_button_handler(frame->widget, frame_button_handler);
+
+ /* Create empty list for frame buttons */
+ wl_list_init(&frame->buttons_list);
+
+ frame_button_create(frame, DATADIR "/weston/icon_window.png",
+ FRAME_BUTTON_ICON, FRAME_BUTTON_LEFT, FRAME_BUTTON_NONE);
+
+ frame_button_create(frame, DATADIR "/weston/sign_close.png",
+ FRAME_BUTTON_CLOSE, FRAME_BUTTON_RIGHT, FRAME_BUTTON_FANCY);
+
+ frame_button_create(frame, DATADIR "/weston/sign_maximize.png",
+ FRAME_BUTTON_MAXIMIZE, FRAME_BUTTON_RIGHT, FRAME_BUTTON_FANCY);
+
+ frame_button_create(frame, DATADIR "/weston/sign_minimize.png",
+ FRAME_BUTTON_MINIMIZE, FRAME_BUTTON_RIGHT, FRAME_BUTTON_FANCY);
+
+ window->frame = frame;
+
+ return frame->child;
+}
+
+void
+frame_set_child_size(struct widget *widget, int child_width, int child_height)
+{
+ struct display *display = widget->window->display;
+ struct theme *t = display->theme;
+ int decoration_width, decoration_height;
+ int width, height;
+ int margin = widget->window->type == TYPE_MAXIMIZED ? 0 : t->margin;
+
+ if (widget->window->type != TYPE_FULLSCREEN) {
+ decoration_width = (t->width + margin) * 2;
+ decoration_height = t->width +
+ t->titlebar_height + margin * 2;
+
+ width = child_width + decoration_width;
+ height = child_height + decoration_height;
+ } else {
+ width = child_width;
+ height = child_height;
+ }
+
+ window_schedule_resize(widget->window, width, height);
+}
+
+static void
+frame_destroy(struct frame *frame)
+{
+ struct frame_button *button, *tmp;
+
+ wl_list_for_each_safe(button, tmp, &frame->buttons_list, link)
+ frame_button_destroy(button);
+
+ /* frame->child must be destroyed by the application */
+ widget_destroy(frame->widget);
+ free(frame);
+}
+
+static void
+input_set_focus_widget(struct input *input, struct widget *focus,
+ float x, float y)
+{
+ struct widget *old, *widget;
+ int cursor;
+
+ if (focus == input->focus_widget)
+ return;
+
+ old = input->focus_widget;
+ if (old) {
+ widget = old;
+ if (input->grab)
+ widget = input->grab;
+ if (widget->leave_handler)
+ widget->leave_handler(old, input, widget->user_data);
+ input->focus_widget = NULL;
+ }
+
+ if (focus) {
+ widget = focus;
+ if (input->grab)
+ widget = input->grab;
+ input->focus_widget = focus;
+ if (widget->enter_handler)
+ cursor = widget->enter_handler(focus, input, x, y,
+ widget->user_data);
+ else
+ cursor = widget->default_cursor;
+
+ input_set_pointer_image(input, cursor);
+ }
+}
+
+void
+input_grab(struct input *input, struct widget *widget, uint32_t button)
+{
+ input->grab = widget;
+ input->grab_button = button;
+}
+
+void
+input_ungrab(struct input *input)
+{
+ struct widget *widget;
+
+ input->grab = NULL;
+ if (input->pointer_focus) {
+ widget = window_find_widget(input->pointer_focus,
+ input->sx, input->sy);
+ input_set_focus_widget(input, widget, input->sx, input->sy);
+ }
+}
+
+static void
+input_remove_pointer_focus(struct input *input)
+{
+ struct window *window = input->pointer_focus;
+
+ if (!window)
+ return;
+
+ input_set_focus_widget(input, NULL, 0, 0);
+
+ input->pointer_focus = NULL;
+ input->current_cursor = CURSOR_UNSET;
+}
+
+static void
+pointer_handle_enter(void *data, struct wl_pointer *pointer,
+ uint32_t serial, struct wl_surface *surface,
+ wl_fixed_t sx_w, wl_fixed_t sy_w)
+{
+ struct input *input = data;
+ struct window *window;
+ struct widget *widget;
+ float sx = wl_fixed_to_double(sx_w);
+ float sy = wl_fixed_to_double(sy_w);
+
+ if (!surface) {
+ /* enter event for a window we've just destroyed */
+ return;
+ }
+
+ input->display->serial = serial;
+ input->pointer_enter_serial = serial;
+ input->pointer_focus = wl_surface_get_user_data(surface);
+ window = input->pointer_focus;
+
+ if (window->resizing) {
+ window->resizing = 0;
+ /* Schedule a redraw to free the pool */
+ window_schedule_redraw(window);
+ }
+
+ input->sx = sx;
+ input->sy = sy;
+
+ widget = window_find_widget(window, sx, sy);
+ input_set_focus_widget(input, widget, sx, sy);
+}
+
+static void
+pointer_handle_leave(void *data, struct wl_pointer *pointer,
+ uint32_t serial, struct wl_surface *surface)
+{
+ struct input *input = data;
+
+ input->display->serial = serial;
+ input_remove_pointer_focus(input);
+}
+
+static void
+pointer_handle_motion(void *data, struct wl_pointer *pointer,
+ uint32_t time, wl_fixed_t sx_w, wl_fixed_t sy_w)
+{
+ struct input *input = data;
+ struct window *window = input->pointer_focus;
+ struct widget *widget;
+ int cursor;
+ float sx = wl_fixed_to_double(sx_w);
+ float sy = wl_fixed_to_double(sy_w);
+
+ /* when making the window smaller - e.g. after a unmaximise we might
+ * still have a pending motion event that the compositor has picked
+ * based on the old surface dimensions
+ */
+ if (sx > window->main_surface->allocation.width ||
+ sy > window->main_surface->allocation.height)
+ return;
+
+ input->sx = sx;
+ input->sy = sy;
+
+ if (!window)
+ return;
+
+ if (!(input->grab && input->grab_button)) {
+ widget = window_find_widget(window, sx, sy);
+ input_set_focus_widget(input, widget, sx, sy);
+ }
+
+ if (input->grab)
+ widget = input->grab;
+ else
+ widget = input->focus_widget;
+ if (widget && widget->motion_handler)
+ cursor = widget->motion_handler(input->focus_widget,
+ input, time, sx, sy,
+ widget->user_data);
+ else
+ cursor = input->focus_widget->default_cursor;
+
+ input_set_pointer_image(input, cursor);
+}
+
+static void
+pointer_handle_button(void *data, struct wl_pointer *pointer, uint32_t serial,
+ uint32_t time, uint32_t button, uint32_t state_w)
+{
+ struct input *input = data;
+ struct widget *widget;
+ enum wl_pointer_button_state state = state_w;
+
+ input->display->serial = serial;
+ if (input->focus_widget && input->grab == NULL &&
+ state == WL_POINTER_BUTTON_STATE_PRESSED)
+ input_grab(input, input->focus_widget, button);
+
+ widget = input->grab;
+ if (widget && widget->button_handler)
+ (*widget->button_handler)(widget,
+ input, time,
+ button, state,
+ input->grab->user_data);
+
+ if (input->grab && input->grab_button == button &&
+ state == WL_POINTER_BUTTON_STATE_RELEASED)
+ input_ungrab(input);
+}
+
+static void
+pointer_handle_axis(void *data, struct wl_pointer *pointer,
+ uint32_t time, uint32_t axis, wl_fixed_t value)
+{
+ struct input *input = data;
+ struct widget *widget;
+
+ widget = input->focus_widget;
+ if (input->grab)
+ widget = input->grab;
+ if (widget && widget->axis_handler)
+ (*widget->axis_handler)(widget,
+ input, time,
+ axis, value,
+ widget->user_data);
+}
+
+static const struct wl_pointer_listener pointer_listener = {
+ pointer_handle_enter,
+ pointer_handle_leave,
+ pointer_handle_motion,
+ pointer_handle_button,
+ pointer_handle_axis,
+};
+
+static void
+input_remove_keyboard_focus(struct input *input)
+{
+ struct window *window = input->keyboard_focus;
+ struct itimerspec its;
+
+ its.it_interval.tv_sec = 0;
+ its.it_interval.tv_nsec = 0;
+ its.it_value.tv_sec = 0;
+ its.it_value.tv_nsec = 0;
+ timerfd_settime(input->repeat_timer_fd, 0, &its, NULL);
+
+ if (!window)
+ return;
+
+ window->focus_count--;
+ if (window->keyboard_focus_handler)
+ (*window->keyboard_focus_handler)(window, NULL,
+ window->user_data);
+
+ input->keyboard_focus = NULL;
+}
+
+static void
+keyboard_repeat_func(struct task *task, uint32_t events)
+{
+ struct input *input =
+ container_of(task, struct input, repeat_task);
+ struct window *window = input->keyboard_focus;
+ uint64_t exp;
+
+ if (read(input->repeat_timer_fd, &exp, sizeof exp) != sizeof exp)
+ /* If we change the timer between the fd becoming
+ * readable and getting here, there'll be nothing to
+ * read and we get EAGAIN. */
+ return;
+
+ if (window && window->key_handler) {
+ (*window->key_handler)(window, input, input->repeat_time,
+ input->repeat_key, input->repeat_sym,
+ WL_KEYBOARD_KEY_STATE_PRESSED,
+ window->user_data);
+ }
+}
+
+static void
+keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
+ uint32_t format, int fd, uint32_t size)
+{
+ struct input *input = data;
+ char *map_str;
+
+ if (!data) {
+ close(fd);
+ return;
+ }
+
+ if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) {
+ close(fd);
+ return;
+ }
+
+ map_str = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
+ if (map_str == MAP_FAILED) {
+ close(fd);
+ return;
+ }
+
+ input->xkb.keymap = xkb_map_new_from_string(input->display->xkb_context,
+ map_str,
+ XKB_KEYMAP_FORMAT_TEXT_V1,
+ 0);
+ munmap(map_str, size);
+ close(fd);
+
+ if (!input->xkb.keymap) {
+ fprintf(stderr, "failed to compile keymap\n");
+ return;
+ }
+
+ input->xkb.state = xkb_state_new(input->xkb.keymap);
+ if (!input->xkb.state) {
+ fprintf(stderr, "failed to create XKB state\n");
+ xkb_map_unref(input->xkb.keymap);
+ input->xkb.keymap = NULL;
+ return;
+ }
+
+ input->xkb.control_mask =
+ 1 << xkb_map_mod_get_index(input->xkb.keymap, "Control");
+ input->xkb.alt_mask =
+ 1 << xkb_map_mod_get_index(input->xkb.keymap, "Mod1");
+ input->xkb.shift_mask =
+ 1 << xkb_map_mod_get_index(input->xkb.keymap, "Shift");
+}
+
+static void
+keyboard_handle_enter(void *data, struct wl_keyboard *keyboard,
+ uint32_t serial, struct wl_surface *surface,
+ struct wl_array *keys)
+{
+ struct input *input = data;
+ struct window *window;
+
+ input->display->serial = serial;
+ input->keyboard_focus = wl_surface_get_user_data(surface);
+
+ window = input->keyboard_focus;
+ window->focus_count++;
+ if (window->keyboard_focus_handler)
+ (*window->keyboard_focus_handler)(window,
+ input, window->user_data);
+}
+
+static void
+keyboard_handle_leave(void *data, struct wl_keyboard *keyboard,
+ uint32_t serial, struct wl_surface *surface)
+{
+ struct input *input = data;
+
+ input->display->serial = serial;
+ input_remove_keyboard_focus(input);
+}
+
+static void
+keyboard_handle_key(void *data, struct wl_keyboard *keyboard,
+ uint32_t serial, uint32_t time, uint32_t key,
+ uint32_t state_w)
+{
+ struct input *input = data;
+ struct window *window = input->keyboard_focus;
+ uint32_t code, num_syms;
+ enum wl_keyboard_key_state state = state_w;
+ const xkb_keysym_t *syms;
+ xkb_keysym_t sym;
+ struct itimerspec its;
+
+ input->display->serial = serial;
+ code = key + 8;
+ if (!window || !input->xkb.state)
+ return;
+
+ num_syms = xkb_key_get_syms(input->xkb.state, code, &syms);
+
+ sym = XKB_KEY_NoSymbol;
+ if (num_syms == 1)
+ sym = syms[0];
+
+ if (sym == XKB_KEY_F5 && input->modifiers == MOD_ALT_MASK) {
+ if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
+ window_set_maximized(window,
+ window->type != TYPE_MAXIMIZED);
+ } else if (sym == XKB_KEY_F11 &&
+ window->fullscreen_handler &&
+ state == WL_KEYBOARD_KEY_STATE_PRESSED) {
+ window->fullscreen_handler(window, window->user_data);
+ } else if (sym == XKB_KEY_F4 &&
+ input->modifiers == MOD_ALT_MASK &&
+ state == WL_KEYBOARD_KEY_STATE_PRESSED) {
+ if (window->close_handler)
+ window->close_handler(window->parent,
+ window->user_data);
+ else
+ display_exit(window->display);
+ } else if (window->key_handler) {
+ (*window->key_handler)(window, input, time, key,
+ sym, state, window->user_data);
+ }
+
+ if (state == WL_KEYBOARD_KEY_STATE_RELEASED &&
+ key == input->repeat_key) {
+ its.it_interval.tv_sec = 0;
+ its.it_interval.tv_nsec = 0;
+ its.it_value.tv_sec = 0;
+ its.it_value.tv_nsec = 0;
+ timerfd_settime(input->repeat_timer_fd, 0, &its, NULL);
+ } else if (state == WL_KEYBOARD_KEY_STATE_PRESSED) {
+ input->repeat_sym = sym;
+ input->repeat_key = key;
+ input->repeat_time = time;
+ its.it_interval.tv_sec = 0;
+ its.it_interval.tv_nsec = 25 * 1000 * 1000;
+ its.it_value.tv_sec = 0;
+ its.it_value.tv_nsec = 400 * 1000 * 1000;
+ timerfd_settime(input->repeat_timer_fd, 0, &its, NULL);
+ }
+}
+
+static void
+keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard,
+ uint32_t serial, uint32_t mods_depressed,
+ uint32_t mods_latched, uint32_t mods_locked,
+ uint32_t group)
+{
+ struct input *input = data;
+ xkb_mod_mask_t mask;
+
+ /* If we're not using a keymap, then we don't handle PC-style modifiers */
+ if (!input->xkb.keymap)
+ return;
+
+ xkb_state_update_mask(input->xkb.state, mods_depressed, mods_latched,
+ mods_locked, 0, 0, group);
+ mask = xkb_state_serialize_mods(input->xkb.state,
+ XKB_STATE_DEPRESSED |
+ XKB_STATE_LATCHED);
+ input->modifiers = 0;
+ if (mask & input->xkb.control_mask)
+ input->modifiers |= MOD_CONTROL_MASK;
+ if (mask & input->xkb.alt_mask)
+ input->modifiers |= MOD_ALT_MASK;
+ if (mask & input->xkb.shift_mask)
+ input->modifiers |= MOD_SHIFT_MASK;
+}
+
+static const struct wl_keyboard_listener keyboard_listener = {
+ keyboard_handle_keymap,
+ keyboard_handle_enter,
+ keyboard_handle_leave,
+ keyboard_handle_key,
+ keyboard_handle_modifiers,
+};
+
+static void
+seat_handle_capabilities(void *data, struct wl_seat *seat,
+ enum wl_seat_capability caps)
+{
+ struct input *input = data;
+
+ if ((caps & WL_SEAT_CAPABILITY_POINTER) && !input->pointer) {
+ input->pointer = wl_seat_get_pointer(seat);
+ wl_pointer_set_user_data(input->pointer, input);
+ wl_pointer_add_listener(input->pointer, &pointer_listener,
+ input);
+ } else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && input->pointer) {
+ wl_pointer_destroy(input->pointer);
+ input->pointer = NULL;
+ }
+
+ if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !input->keyboard) {
+ input->keyboard = wl_seat_get_keyboard(seat);
+ wl_keyboard_set_user_data(input->keyboard, input);
+ wl_keyboard_add_listener(input->keyboard, &keyboard_listener,
+ input);
+ } else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && input->keyboard) {
+ wl_keyboard_destroy(input->keyboard);
+ input->keyboard = NULL;
+ }
+}
+
+static const struct wl_seat_listener seat_listener = {
+ seat_handle_capabilities,
+};
+
+void
+input_get_position(struct input *input, int32_t *x, int32_t *y)
+{
+ *x = input->sx;
+ *y = input->sy;
+}
+
+struct display *
+input_get_display(struct input *input)
+{
+ return input->display;
+}
+
+struct wl_seat *
+input_get_seat(struct input *input)
+{
+ return input->seat;
+}
+
+uint32_t
+input_get_modifiers(struct input *input)
+{
+ return input->modifiers;
+}
+
+struct widget *
+input_get_focus_widget(struct input *input)
+{
+ return input->focus_widget;
+}
+
+struct data_offer {
+ struct wl_data_offer *offer;
+ struct input *input;
+ struct wl_array types;
+ int refcount;
+
+ struct task io_task;
+ int fd;
+ data_func_t func;
+ int32_t x, y;
+ void *user_data;
+};
+
+static void
+data_offer_offer(void *data, struct wl_data_offer *wl_data_offer, const char *type)
+{
+ struct data_offer *offer = data;
+ char **p;
+
+ p = wl_array_add(&offer->types, sizeof *p);
+ *p = strdup(type);
+}
+
+static const struct wl_data_offer_listener data_offer_listener = {
+ data_offer_offer,
+};
+
+static void
+data_offer_destroy(struct data_offer *offer)
+{
+ char **p;
+
+ offer->refcount--;
+ if (offer->refcount == 0) {
+ wl_data_offer_destroy(offer->offer);
+ for (p = offer->types.data; *p; p++)
+ free(*p);
+ wl_array_release(&offer->types);
+ free(offer);
+ }
+}
+
+static void
+data_device_data_offer(void *data,
+ struct wl_data_device *data_device,
+ struct wl_data_offer *_offer)
+{
+ struct data_offer *offer;
+
+ offer = malloc(sizeof *offer);
+
+ wl_array_init(&offer->types);
+ offer->refcount = 1;
+ offer->input = data;
+ offer->offer = _offer;
+ wl_data_offer_add_listener(offer->offer,
+ &data_offer_listener, offer);
+}
+
+static void
+data_device_enter(void *data, struct wl_data_device *data_device,
+ uint32_t serial, struct wl_surface *surface,
+ wl_fixed_t x_w, wl_fixed_t y_w,
+ struct wl_data_offer *offer)
+{
+ struct input *input = data;
+ struct window *window;
+ void *types_data;
+ float x = wl_fixed_to_double(x_w);
+ float y = wl_fixed_to_double(y_w);
+ char **p;
+
+ input->pointer_enter_serial = serial;
+ window = wl_surface_get_user_data(surface);
+ input->pointer_focus = window;
+
+ if (offer) {
+ input->drag_offer = wl_data_offer_get_user_data(offer);
+
+ p = wl_array_add(&input->drag_offer->types, sizeof *p);
+ *p = NULL;
+
+ types_data = input->drag_offer->types.data;
+ } else {
+ input->drag_offer = NULL;
+ types_data = NULL;
+ }
+
+ window = input->pointer_focus;
+ if (window->data_handler)
+ window->data_handler(window, input, x, y, types_data,
+ window->user_data);
+}
+
+static void
+data_device_leave(void *data, struct wl_data_device *data_device)
+{
+ struct input *input = data;
+
+ if (input->drag_offer) {
+ data_offer_destroy(input->drag_offer);
+ input->drag_offer = NULL;
+ }
+}
+
+static void
+data_device_motion(void *data, struct wl_data_device *data_device,
+ uint32_t time, wl_fixed_t x_w, wl_fixed_t y_w)
+{
+ struct input *input = data;
+ struct window *window = input->pointer_focus;
+ float x = wl_fixed_to_double(x_w);
+ float y = wl_fixed_to_double(y_w);
+ void *types_data;
+
+ input->sx = x;
+ input->sy = y;
+
+ if (input->drag_offer)
+ types_data = input->drag_offer->types.data;
+ else
+ types_data = NULL;
+
+ if (window->data_handler)
+ window->data_handler(window, input, x, y, types_data,
+ window->user_data);
+}
+
+static void
+data_device_drop(void *data, struct wl_data_device *data_device)
+{
+ struct input *input = data;
+ struct window *window = input->pointer_focus;
+
+ if (window->drop_handler)
+ window->drop_handler(window, input,
+ input->sx, input->sy, window->user_data);
+}
+
+static void
+data_device_selection(void *data,
+ struct wl_data_device *wl_data_device,
+ struct wl_data_offer *offer)
+{
+ struct input *input = data;
+ char **p;
+
+ if (input->selection_offer)
+ data_offer_destroy(input->selection_offer);
+
+ if (offer) {
+ input->selection_offer = wl_data_offer_get_user_data(offer);
+ p = wl_array_add(&input->selection_offer->types, sizeof *p);
+ *p = NULL;
+ } else {
+ input->selection_offer = NULL;
+ }
+}
+
+static const struct wl_data_device_listener data_device_listener = {
+ data_device_data_offer,
+ data_device_enter,
+ data_device_leave,
+ data_device_motion,
+ data_device_drop,
+ data_device_selection
+};
+
+static void
+input_set_pointer_image_index(struct input *input, int index)
+{
+ struct wl_buffer *buffer;
+ struct wl_cursor *cursor;
+ struct wl_cursor_image *image;
+
+ if (!input->pointer)
+ return;
+
+ cursor = input->display->cursors[input->current_cursor];
+ if (!cursor)
+ return;
+
+ if (index >= (int) cursor->image_count) {
+ fprintf(stderr, "cursor index out of range\n");
+ return;
+ }
+
+ image = cursor->images[index];
+ buffer = wl_cursor_image_get_buffer(image);
+ if (!buffer)
+ return;
+
+ wl_pointer_set_cursor(input->pointer, input->pointer_enter_serial,
+ input->pointer_surface,
+ image->hotspot_x, image->hotspot_y);
+ wl_surface_attach(input->pointer_surface, buffer, 0, 0);
+ wl_surface_damage(input->pointer_surface, 0, 0,
+ image->width, image->height);
+ wl_surface_commit(input->pointer_surface);
+}
+
+static const struct wl_callback_listener pointer_surface_listener;
+
+static void
+pointer_surface_frame_callback(void *data, struct wl_callback *callback,
+ uint32_t time)
+{
+ struct input *input = data;
+ struct wl_cursor *cursor;
+ int i;
+
+ if (callback) {
+ assert(callback == input->cursor_frame_cb);
+ wl_callback_destroy(callback);
+ input->cursor_frame_cb = NULL;
+ }
+
+ if (!input->pointer)
+ return;
+
+ if (input->current_cursor == CURSOR_BLANK) {
+ wl_pointer_set_cursor(input->pointer,
+ input->pointer_enter_serial,
+ NULL, 0, 0);
+ return;
+ }
+
+ if (input->current_cursor == CURSOR_UNSET)
+ return;
+ cursor = input->display->cursors[input->current_cursor];
+ if (!cursor)
+ return;
+
+ /* FIXME We don't have the current time on the first call so we set
+ * the animation start to the time of the first frame callback. */
+ if (time == 0)
+ input->cursor_anim_start = 0;
+ else if (input->cursor_anim_start == 0)
+ input->cursor_anim_start = time;
+
+ if (time == 0 || input->cursor_anim_start == 0)
+ i = 0;
+ else
+ i = wl_cursor_frame(cursor, time - input->cursor_anim_start);
+
+ if (cursor->image_count > 1) {
+ input->cursor_frame_cb =
+ wl_surface_frame(input->pointer_surface);
+ wl_callback_add_listener(input->cursor_frame_cb,
+ &pointer_surface_listener, input);
+ }
+
+ input_set_pointer_image_index(input, i);
+}
+
+static const struct wl_callback_listener pointer_surface_listener = {
+ pointer_surface_frame_callback
+};
+
+void
+input_set_pointer_image(struct input *input, int pointer)
+{
+ int force = 0;
+
+ if (!input->pointer)
+ return;
+
+ if (input->pointer_enter_serial > input->cursor_serial)
+ force = 1;
+
+ if (!force && pointer == input->current_cursor)
+ return;
+
+ input->current_cursor = pointer;
+ input->cursor_serial = input->pointer_enter_serial;
+ if (!input->cursor_frame_cb)
+ pointer_surface_frame_callback(input, NULL, 0);
+ else if (force) {
+ /* The current frame callback may be stuck if, for instance,
+ * the set cursor request was processed by the server after
+ * this client lost the focus. In this case the cursor surface
+ * might not be mapped and the frame callback wouldn't ever
+ * complete. Send a set_cursor and attach to try to map the
+ * cursor surface again so that the callback will finish */
+ input_set_pointer_image_index(input, 0);
+ }
+}
+
+struct wl_data_device *
+input_get_data_device(struct input *input)
+{
+ return input->data_device;
+}
+
+void
+input_set_selection(struct input *input,
+ struct wl_data_source *source, uint32_t time)
+{
+ wl_data_device_set_selection(input->data_device, source, time);
+}
+
+void
+input_accept(struct input *input, const char *type)
+{
+ wl_data_offer_accept(input->drag_offer->offer,
+ input->pointer_enter_serial, type);
+}
+
+static void
+offer_io_func(struct task *task, uint32_t events)
+{
+ struct data_offer *offer =
+ container_of(task, struct data_offer, io_task);
+ unsigned int len;
+ char buffer[4096];
+
+ len = read(offer->fd, buffer, sizeof buffer);
+ offer->func(buffer, len,
+ offer->x, offer->y, offer->user_data);
+
+ if (len == 0) {
+ close(offer->fd);
+ data_offer_destroy(offer);
+ }
+}
+
+static void
+data_offer_receive_data(struct data_offer *offer, const char *mime_type,
+ data_func_t func, void *user_data)
+{
+ int p[2];
+
+ if (pipe2(p, O_CLOEXEC) == -1)
+ return;
+
+ wl_data_offer_receive(offer->offer, mime_type, p[1]);
+ close(p[1]);
+
+ offer->io_task.run = offer_io_func;
+ offer->fd = p[0];
+ offer->func = func;
+ offer->refcount++;
+ offer->user_data = user_data;
+
+ display_watch_fd(offer->input->display,
+ offer->fd, EPOLLIN, &offer->io_task);
+}
+
+void
+input_receive_drag_data(struct input *input, const char *mime_type,
+ data_func_t func, void *data)
+{
+ data_offer_receive_data(input->drag_offer, mime_type, func, data);
+ input->drag_offer->x = input->sx;
+ input->drag_offer->y = input->sy;
+}
+
+int
+input_receive_selection_data(struct input *input, const char *mime_type,
+ data_func_t func, void *data)
+{
+ char **p;
+
+ if (input->selection_offer == NULL)
+ return -1;
+
+ for (p = input->selection_offer->types.data; *p; p++)
+ if (strcmp(mime_type, *p) == 0)
+ break;
+
+ if (*p == NULL)
+ return -1;
+
+ data_offer_receive_data(input->selection_offer,
+ mime_type, func, data);
+ return 0;
+}
+
+int
+input_receive_selection_data_to_fd(struct input *input,
+ const char *mime_type, int fd)
+{
+ if (input->selection_offer)
+ wl_data_offer_receive(input->selection_offer->offer,
+ mime_type, fd);
+
+ return 0;
+}
+
+void
+window_move(struct window *window, struct input *input, uint32_t serial)
+{
+ if (!window->shell_surface)
+ return;
+
+ xdg_surface_move(window->shell_surface, input->seat, serial);
+}
+
+static void
+surface_set_synchronized(struct surface *surface)
+{
+ if (!surface->subsurface)
+ return;
+
+ if (surface->synchronized)
+ return;
+
+ wl_subsurface_set_sync(surface->subsurface);
+ surface->synchronized = 1;
+}
+
+static void
+surface_set_synchronized_default(struct surface *surface)
+{
+ if (!surface->subsurface)
+ return;
+
+ if (surface->synchronized == surface->synchronized_default)
+ return;
+
+ if (surface->synchronized_default)
+ wl_subsurface_set_sync(surface->subsurface);
+ else
+ wl_subsurface_set_desync(surface->subsurface);
+
+ surface->synchronized = surface->synchronized_default;
+}
+
+static void
+surface_resize(struct surface *surface)
+{
+ struct widget *widget = surface->widget;
+ struct wl_compositor *compositor = widget->window->display->compositor;
+
+ if (surface->input_region) {
+ wl_region_destroy(surface->input_region);
+ surface->input_region = NULL;
+ }
+
+ if (surface->opaque_region)
+ wl_region_destroy(surface->opaque_region);
+
+ surface->opaque_region = wl_compositor_create_region(compositor);
+
+ if (widget->resize_handler)
+ widget->resize_handler(widget,
+ widget->allocation.width,
+ widget->allocation.height,
+ widget->user_data);
+
+ if (surface->subsurface &&
+ (surface->allocation.x != widget->allocation.x ||
+ surface->allocation.y != widget->allocation.y)) {
+ wl_subsurface_set_position(surface->subsurface,
+ widget->allocation.x,
+ widget->allocation.y);
+ }
+ if (surface->allocation.width != widget->allocation.width ||
+ surface->allocation.height != widget->allocation.height) {
+ window_schedule_redraw(widget->window);
+ }
+ surface->allocation = widget->allocation;
+
+ if (widget->opaque)
+ wl_region_add(surface->opaque_region, 0, 0,
+ widget->allocation.width,
+ widget->allocation.height);
+}
+
+static void
+hack_prevent_EGL_sub_surface_deadlock(struct window *window)
+{
+ /*
+ * This hack should be removed, when EGL respects
+ * eglSwapInterval(0).
+ *
+ * If this window has sub-surfaces, especially a free-running
+ * EGL-widget, we need to post the parent surface once with
+ * all the old state to guarantee, that the EGL-widget will
+ * receive its frame callback soon. Otherwise, a forced call
+ * to eglSwapBuffers may end up blocking, waiting for a frame
+ * event that will never come, because we will commit the parent
+ * surface with all new state only after eglSwapBuffers returns.
+ *
+ * This assumes, that:
+ * 1. When the EGL widget's resize hook is called, it pauses.
+ * 2. When the EGL widget's redraw hook is called, it forces a
+ * repaint and a call to eglSwapBuffers(), and maybe resumes.
+ * In a single threaded application condition 1 is a no-op.
+ *
+ * XXX: This should actually be after the surface_resize() calls,
+ * but cannot, because then it would commit the incomplete state
+ * accumulated from the widget resize hooks.
+ */
+ if (window->subsurface_list.next != &window->main_surface->link ||
+ window->subsurface_list.prev != &window->main_surface->link)
+ wl_surface_commit(window->main_surface->surface);
+}
+
+static void
+idle_resize(struct window *window)
+{
+ struct surface *surface;
+
+ window->resize_needed = 0;
+ window->redraw_needed = 1;
+
+ DBG("from %dx%d to %dx%d\n",
+ window->main_surface->server_allocation.width,
+ window->main_surface->server_allocation.height,
+ window->pending_allocation.width,
+ window->pending_allocation.height);
+
+ hack_prevent_EGL_sub_surface_deadlock(window);
+
+ widget_set_allocation(window->main_surface->widget,
+ window->pending_allocation.x,
+ window->pending_allocation.y,
+ window->pending_allocation.width,
+ window->pending_allocation.height);
+
+ surface_resize(window->main_surface);
+
+ /* The main surface is in the list, too. Main surface's
+ * resize_handler is responsible for calling widget_set_allocation()
+ * on all sub-surface root widgets, so they will be resized
+ * properly.
+ */
+ wl_list_for_each(surface, &window->subsurface_list, link) {
+ if (surface == window->main_surface)
+ continue;
+
+ surface_set_synchronized(surface);
+ surface_resize(surface);
+ }
+}
+
+void
+window_schedule_resize(struct window *window, int width, int height)
+{
+ window->pending_allocation.x = 0;
+ window->pending_allocation.y = 0;
+ window->pending_allocation.width = width;
+ window->pending_allocation.height = height;
+
+ if (window->min_allocation.width == 0)
+ window->min_allocation = window->pending_allocation;
+ if (window->pending_allocation.width < window->min_allocation.width)
+ window->pending_allocation.width = window->min_allocation.width;
+ if (window->pending_allocation.height < window->min_allocation.height)
+ window->pending_allocation.height = window->min_allocation.height;
+
+ window->resize_needed = 1;
+ window_schedule_redraw(window);
+}
+
+void
+widget_schedule_resize(struct widget *widget, int32_t width, int32_t height)
+{
+ window_schedule_resize(widget->window, width, height);
+}
+
+static void
+handle_ping(void *data, struct xdg_surface *shell_surface,
+ uint32_t serial)
+{
+ xdg_surface_pong(shell_surface, serial);
+}
+
+static void
+handle_configure(void *data, struct xdg_surface *shell_surface,
+ uint32_t edges, int32_t width, int32_t height)
+{
+ struct window *window = data;
+
+ window->resize_edges = edges;
+ window_schedule_resize(window, width, height);
+}
+
+static void
+menu_destroy(struct menu *menu)
+{
+ widget_destroy(menu->widget);
+ window_destroy(menu->window);
+ free(menu);
+}
+
+static void
+handle_popup_done(void *data, struct xdg_surface *shell_surface)
+{
+ struct window *window = data;
+ struct menu *menu = window->main_surface->widget->user_data;
+
+ /* FIXME: Need more context in this event, at least the input
+ * device. Or just use wl_callback. And this really needs to
+ * be a window vfunc that the menu can set. And we need the
+ * time. */
+
+ input_ungrab(menu->input);
+ menu_destroy(menu);
+}
+
+static const struct xdg_surface_listener shell_surface_listener = {
+ handle_ping,
+ handle_configure,
+ handle_popup_done
+};
+
+void
+window_get_allocation(struct window *window,
+ struct rectangle *allocation)
+{
+ *allocation = window->main_surface->allocation;
+}
+
+static void
+widget_redraw(struct widget *widget)
+{
+ struct widget *child;
+
+ if (widget->redraw_handler)
+ widget->redraw_handler(widget, widget->user_data);
+ wl_list_for_each(child, &widget->child_list, link)
+ widget_redraw(child);
+}
+
+static void
+frame_callback(void *data, struct wl_callback *callback, uint32_t time)
+{
+ struct surface *surface = data;
+
+ assert(callback == surface->frame_cb);
+ DBG_OBJ(callback, "done\n");
+ wl_callback_destroy(callback);
+ surface->frame_cb = NULL;
+
+ surface->last_time = time;
+
+ if (surface->redraw_needed || surface->window->redraw_needed) {
+ DBG_OBJ(surface->surface, "window_schedule_redraw_task\n");
+ window_schedule_redraw_task(surface->window);
+ }
+}
+
+static const struct wl_callback_listener listener = {
+ frame_callback
+};
+
+static void
+surface_redraw(struct surface *surface)
+{
+ DBG_OBJ(surface->surface, "begin\n");
+
+ if (!surface->window->redraw_needed && !surface->redraw_needed)
+ return;
+
+ /* Whole-window redraw forces a redraw even if the previous has
+ * not yet hit the screen.
+ */
+ if (surface->frame_cb) {
+ if (!surface->window->redraw_needed)
+ return;
+
+ DBG_OBJ(surface->frame_cb, "cancelled\n");
+ wl_callback_destroy(surface->frame_cb);
+ }
+
+ surface->frame_cb = wl_surface_frame(surface->surface);
+ wl_callback_add_listener(surface->frame_cb, &listener, surface);
+ DBG_OBJ(surface->frame_cb, "new\n");
+
+ surface->redraw_needed = 0;
+ DBG_OBJ(surface->surface, "-> widget_redraw\n");
+ widget_redraw(surface->widget);
+ DBG_OBJ(surface->surface, "done\n");
+}
+
+static void
+idle_redraw(struct task *task, uint32_t events)
+{
+ struct window *window = container_of(task, struct window, redraw_task);
+ struct surface *surface;
+
+ DBG(" --------- \n");
+
+ wl_list_init(&window->redraw_task.link);
+ window->redraw_task_scheduled = 0;
+
+ if (window->resize_needed) {
+ /* throttle resizing to the main surface display */
+ if (window->main_surface->frame_cb) {
+ DBG_OBJ(window->main_surface->frame_cb, "pending\n");
+ return;
+ }
+
+ idle_resize(window);
+ }
+
+ wl_list_for_each(surface, &window->subsurface_list, link)
+ surface_redraw(surface);
+
+ window->redraw_needed = 0;
+ window_flush(window);
+
+ wl_list_for_each(surface, &window->subsurface_list, link)
+ surface_set_synchronized_default(surface);
+}
+
+static void
+window_schedule_redraw_task(struct window *window)
+{
+ if (window->configure_requests)
+ return;
+ if (!window->redraw_task_scheduled) {
+ window->redraw_task.run = idle_redraw;
+ display_defer(window->display, &window->redraw_task);
+ window->redraw_task_scheduled = 1;
+ }
+}
+
+void
+window_schedule_redraw(struct window *window)
+{
+ struct surface *surface;
+
+ DBG_OBJ(window->main_surface->surface, "window %p\n", window);
+
+ wl_list_for_each(surface, &window->subsurface_list, link)
+ surface->redraw_needed = 1;
+
+ window_schedule_redraw_task(window);
+}
+
+int
+window_is_fullscreen(struct window *window)
+{
+ return window->type == TYPE_FULLSCREEN;
+}
+
+static void
+configure_request_completed(void *data, struct wl_callback *callback, uint32_t time)
+{
+ struct window *window = data;
+
+ wl_callback_destroy(callback);
+ window->configure_requests--;
+
+ if (!window->configure_requests)
+ window_schedule_redraw(window);
+}
+
+static struct wl_callback_listener configure_request_listener = {
+ configure_request_completed,
+};
+
+static void
+window_defer_redraw_until_configure(struct window* window)
+{
+ struct wl_callback *callback;
+
+ if (window->redraw_task_scheduled) {
+ wl_list_remove(&window->redraw_task.link);
+ window->redraw_task_scheduled = 0;
+ }
+
+ callback = wl_display_sync(window->display->display);
+ wl_callback_add_listener(callback, &configure_request_listener, window);
+ window->configure_requests++;
+}
+
+void
+window_set_fullscreen(struct window *window, int fullscreen)
+{
+ if (!window->display->shell)
+ return;
+
+ if ((window->type == TYPE_FULLSCREEN) == fullscreen)
+ return;
+
+ if (fullscreen) {
+ window->saved_type = window->type;
+ if (window->type == TYPE_TOPLEVEL) {
+ window->saved_allocation = window->main_surface->allocation;
+ }
+ window->type = TYPE_FULLSCREEN;
+ xdg_surface_set_fullscreen(window->shell_surface,
+ window->fullscreen_method,
+ 0, NULL);
+ window_defer_redraw_until_configure (window);
+ } else {
+ if (window->saved_type == TYPE_MAXIMIZED) {
+ window_set_maximized(window, 1);
+ } else {
+ window->type = TYPE_TOPLEVEL;
+ xdg_surface_set_toplevel(window->shell_surface);
+ window_schedule_resize(window,
+ window->saved_allocation.width,
+ window->saved_allocation.height);
+ }
+
+ }
+}
+
+void
+window_set_fullscreen_method(struct window *window,
+ enum xdg_surface_fullscreen_method method)
+{
+ window->fullscreen_method = method;
+}
+
+int
+window_is_maximized(struct window *window)
+{
+ return window->type == TYPE_MAXIMIZED;
+}
+
+void
+window_set_maximized(struct window *window, int maximized)
+{
+ if (!window->display->shell)
+ return;
+
+ if ((window->type == TYPE_MAXIMIZED) == maximized)
+ return;
+
+ if (window->type == TYPE_TOPLEVEL) {
+ window->saved_allocation = window->main_surface->allocation;
+ xdg_surface_set_maximized(window->shell_surface, NULL);
+ window->type = TYPE_MAXIMIZED;
+ window_defer_redraw_until_configure(window);
+ } else if (window->type == TYPE_FULLSCREEN) {
+ xdg_surface_set_maximized(window->shell_surface, NULL);
+ window->type = TYPE_MAXIMIZED;
+ window_defer_redraw_until_configure(window);
+ } else {
+ xdg_surface_set_toplevel(window->shell_surface);
+ window->type = TYPE_TOPLEVEL;
+ window_schedule_resize(window,
+ window->saved_allocation.width,
+ window->saved_allocation.height);
+ }
+}
+
+void
+window_set_user_data(struct window *window, void *data)
+{
+ window->user_data = data;
+}
+
+void *
+window_get_user_data(struct window *window)
+{
+ return window->user_data;
+}
+
+void
+window_set_key_handler(struct window *window,
+ window_key_handler_t handler)
+{
+ window->key_handler = handler;
+}
+
+void
+window_set_keyboard_focus_handler(struct window *window,
+ window_keyboard_focus_handler_t handler)
+{
+ window->keyboard_focus_handler = handler;
+}
+
+void
+window_set_data_handler(struct window *window, window_data_handler_t handler)
+{
+ window->data_handler = handler;
+}
+
+void
+window_set_drop_handler(struct window *window, window_drop_handler_t handler)
+{
+ window->drop_handler = handler;
+}
+
+void
+window_set_close_handler(struct window *window,
+ window_close_handler_t handler)
+{
+ window->close_handler = handler;
+}
+
+void
+window_set_fullscreen_handler(struct window *window,
+ window_fullscreen_handler_t handler)
+{
+ window->fullscreen_handler = handler;
+}
+
+void
+window_set_output_handler(struct window *window,
+ window_output_handler_t handler)
+{
+ window->output_handler = handler;
+}
+
+void
+window_set_title(struct window *window, const char *title)
+{
+ free(window->title);
+ window->title = strdup(title);
+ if (window->shell_surface)
+ xdg_surface_set_title(window->shell_surface, title);
+}
+
+const char *
+window_get_title(struct window *window)
+{
+ return window->title;
+}
+
+void
+window_set_text_cursor_position(struct window *window, int32_t x, int32_t y)
+{
+ struct text_cursor_position *text_cursor_position =
+ window->display->text_cursor_position;
+
+ if (!text_cursor_position)
+ return;
+
+ text_cursor_position_notify(text_cursor_position,
+ window->main_surface->surface,
+ wl_fixed_from_int(x),
+ wl_fixed_from_int(y));
+}
+
+void
+window_damage(struct window *window, int32_t x, int32_t y,
+ int32_t width, int32_t height)
+{
+ wl_surface_damage(window->main_surface->surface, x, y, width, height);
+}
+
+static void
+surface_enter(void *data,
+ struct wl_surface *wl_surface, struct wl_output *wl_output)
+{
+ struct window *window = data;
+ struct output *output;
+ struct output *output_found = NULL;
+ struct window_output *window_output;
+
+ wl_list_for_each(output, &window->display->output_list, link) {
+ if (output->output == wl_output) {
+ output_found = output;
+ break;
+ }
+ }
+
+ if (!output_found)
+ return;
+
+ window_output = malloc (sizeof *window_output);
+ window_output->output = output_found;
+
+ wl_list_insert (&window->window_output_list, &window_output->link);
+
+ if (window->output_handler)
+ window->output_handler(window, output_found, 1,
+ window->user_data);
+}
+
+static void
+surface_leave(void *data,
+ struct wl_surface *wl_surface, struct wl_output *output)
+{
+ struct window *window = data;
+ struct window_output *window_output;
+ struct window_output *window_output_found = NULL;
+
+ wl_list_for_each(window_output, &window->window_output_list, link) {
+ if (window_output->output->output == output) {
+ window_output_found = window_output;
+ break;
+ }
+ }
+
+ if (window_output_found) {
+ wl_list_remove(&window_output_found->link);
+
+ if (window->output_handler)
+ window->output_handler(window, window_output->output,
+ 0, window->user_data);
+
+ free(window_output_found);
+ }
+}
+
+static const struct wl_surface_listener surface_listener = {
+ surface_enter,
+ surface_leave
+};
+
+static struct surface *
+surface_create(struct window *window)
+{
+ struct display *display = window->display;
+ struct surface *surface;
+
+ surface = calloc(1, sizeof *surface);
+ if (!surface)
+ return NULL;
+
+ surface->window = window;
+ surface->surface = wl_compositor_create_surface(display->compositor);
+ surface->buffer_scale = 1;
+ wl_surface_add_listener(surface->surface, &surface_listener, window);
+
+ wl_list_insert(&window->subsurface_list, &surface->link);
+
+ return surface;
+}
+
+static struct window *
+window_create_internal(struct display *display,
+ struct window *parent, int type)
+{
+ struct window *window;
+ struct surface *surface;
+
+ window = malloc(sizeof *window);
+ if (window == NULL)
+ return NULL;
+
+ memset(window, 0, sizeof *window);
+ wl_list_init(&window->subsurface_list);
+ window->display = display;
+ window->parent = parent;
+
+ surface = surface_create(window);
+ window->main_surface = surface;
+
+ if (type != TYPE_CUSTOM && display->shell) {
+ window->shell_surface =
+ xdg_shell_create_xdg_surface(display->shell,
+ surface->surface);
+ }
+
+ window->type = type;
+ window->fullscreen_method = XDG_SURFACE_FULLSCREEN_METHOD_DEFAULT;
+ window->configure_requests = 0;
+
+ if (display->argb_device)
+#ifdef HAVE_CAIRO_EGL
+ surface->buffer_type = WINDOW_BUFFER_TYPE_EGL_WINDOW;
+#else
+ surface->buffer_type = WINDOW_BUFFER_TYPE_SHM;
+#endif
+ else
+ surface->buffer_type = WINDOW_BUFFER_TYPE_SHM;
+
+ wl_surface_set_user_data(surface->surface, window);
+ wl_list_insert(display->window_list.prev, &window->link);
+ wl_list_init(&window->redraw_task.link);
+
+ if (window->shell_surface) {
+ xdg_surface_set_user_data(window->shell_surface, window);
+ xdg_surface_add_listener(window->shell_surface,
+ &shell_surface_listener, window);
+ }
+
+ wl_list_init (&window->window_output_list);
+
+ return window;
+}
+
+struct window *
+window_create(struct display *display)
+{
+ struct window *window;
+
+ window = window_create_internal(display, NULL, TYPE_NONE);
+ if (!window)
+ return NULL;
+
+ return window;
+}
+
+struct window *
+window_create_custom(struct display *display)
+{
+ struct window *window;
+
+ window = window_create_internal(display, NULL, TYPE_CUSTOM);
+ if (!window)
+ return NULL;
+
+ return window;
+}
+
+struct window *
+window_create_transient(struct display *display, struct window *parent,
+ int32_t x, int32_t y, uint32_t flags)
+{
+ struct window *window;
+
+ window = window_create_internal(parent->display,
+ parent, TYPE_TRANSIENT);
+ if (!window)
+ return NULL;
+
+ window->x = x;
+ window->y = y;
+
+ if (display->shell)
+ xdg_surface_set_transient(
+ window->shell_surface,
+ window->parent->main_surface->surface,
+ window->x, window->y, flags);
+
+ return window;
+}
+
+static void
+menu_set_item(struct menu *menu, int sy)
+{
+ int next;
+
+ next = (sy - 8) / 20;
+ if (menu->current != next) {
+ menu->current = next;
+ widget_schedule_redraw(menu->widget);
+ }
+}
+
+static int
+menu_motion_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ float x, float y, void *data)
+{
+ struct menu *menu = data;
+
+ if (widget == menu->widget)
+ menu_set_item(data, y);
+
+ return CURSOR_LEFT_PTR;
+}
+
+static int
+menu_enter_handler(struct widget *widget,
+ struct input *input, float x, float y, void *data)
+{
+ struct menu *menu = data;
+
+ if (widget == menu->widget)
+ menu_set_item(data, y);
+
+ return CURSOR_LEFT_PTR;
+}
+
+static void
+menu_leave_handler(struct widget *widget, struct input *input, void *data)
+{
+ struct menu *menu = data;
+
+ if (widget == menu->widget)
+ menu_set_item(data, -200);
+}
+
+static void
+menu_button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button, enum wl_pointer_button_state state,
+ void *data)
+
+{
+ struct menu *menu = data;
+
+ if (state == WL_POINTER_BUTTON_STATE_RELEASED &&
+ (menu->release_count > 0 || time - menu->time > 500)) {
+ /* Either relase after press-drag-release or
+ * click-motion-click. */
+ menu->func(menu->window->parent,
+ menu->current, menu->window->parent->user_data);
+ input_ungrab(input);
+ menu_destroy(menu);
+ } else if (state == WL_POINTER_BUTTON_STATE_RELEASED) {
+ menu->release_count++;
+ }
+}
+
+static void
+menu_redraw_handler(struct widget *widget, void *data)
+{
+ cairo_t *cr;
+ const int32_t r = 3, margin = 3;
+ struct menu *menu = data;
+ int32_t width, height, i;
+
+ cr = widget_cairo_create(widget);
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
+ cairo_paint(cr);
+
+ width = widget->allocation.width;
+ height = widget->allocation.height;
+ rounded_rect(cr, 0, 0, width, height, r);
+
+ cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+ cairo_set_source_rgba(cr, 0.0, 0.0, 0.4, 0.8);
+ cairo_fill(cr);
+
+ for (i = 0; i < menu->count; i++) {
+ if (i == menu->current) {
+ cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+ cairo_rectangle(cr, margin, i * 20 + margin,
+ width - 2 * margin, 20);
+ cairo_fill(cr);
+ cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
+ cairo_move_to(cr, 10, i * 20 + 16);
+ cairo_show_text(cr, menu->entries[i]);
+ } else {
+ cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+ cairo_move_to(cr, 10, i * 20 + 16);
+ cairo_show_text(cr, menu->entries[i]);
+ }
+ }
+
+ cairo_destroy(cr);
+}
+
+void
+window_show_menu(struct display *display,
+ struct input *input, uint32_t time, struct window *parent,
+ int32_t x, int32_t y,
+ menu_func_t func, const char **entries, int count)
+{
+ struct window *window;
+ struct menu *menu;
+ const int32_t margin = 3;
+
+ menu = malloc(sizeof *menu);
+ if (!menu)
+ return;
+
+ window = window_create_internal(parent->display, parent, TYPE_MENU);
+ if (!window) {
+ free(menu);
+ return;
+ }
+
+ menu->window = window;
+ menu->widget = window_add_widget(menu->window, menu);
+ window_set_buffer_scale (menu->window, window_get_buffer_scale (parent));
+ window_set_buffer_transform (menu->window, window_get_buffer_transform (parent));
+ menu->entries = entries;
+ menu->count = count;
+ menu->release_count = 0;
+ menu->current = -1;
+ menu->time = time;
+ menu->func = func;
+ menu->input = input;
+ window->type = TYPE_MENU;
+ window->x = x;
+ window->y = y;
+
+ input_ungrab(input);
+ xdg_surface_set_popup(window->shell_surface, input->seat,
+ display_get_serial(window->display),
+ window->parent->main_surface->surface,
+ window->x, window->y, 0);
+
+ widget_set_redraw_handler(menu->widget, menu_redraw_handler);
+ widget_set_enter_handler(menu->widget, menu_enter_handler);
+ widget_set_leave_handler(menu->widget, menu_leave_handler);
+ widget_set_motion_handler(menu->widget, menu_motion_handler);
+ widget_set_button_handler(menu->widget, menu_button_handler);
+
+ input_grab(input, menu->widget, 0);
+ window_schedule_resize(window, 200, count * 20 + margin * 2);
+}
+
+void
+window_set_buffer_type(struct window *window, enum window_buffer_type type)
+{
+ window->main_surface->buffer_type = type;
+}
+
+struct widget *
+window_add_subsurface(struct window *window, void *data,
+ enum subsurface_mode default_mode)
+{
+ struct widget *widget;
+ struct surface *surface;
+ struct wl_surface *parent;
+ struct wl_subcompositor *subcompo = window->display->subcompositor;
+
+ if (!subcompo)
+ return NULL;
+
+ surface = surface_create(window);
+ widget = widget_create(window, surface, data);
+ wl_list_init(&widget->link);
+ surface->widget = widget;
+
+ parent = window->main_surface->surface;
+ surface->subsurface = wl_subcompositor_get_subsurface(subcompo,
+ surface->surface,
+ parent);
+ surface->synchronized = 1;
+
+ switch (default_mode) {
+ case SUBSURFACE_SYNCHRONIZED:
+ surface->synchronized_default = 1;
+ break;
+ case SUBSURFACE_DESYNCHRONIZED:
+ surface->synchronized_default = 0;
+ break;
+ default:
+ assert(!"bad enum subsurface_mode");
+ }
+
+ return widget;
+}
+
+static void
+display_handle_geometry(void *data,
+ struct wl_output *wl_output,
+ int x, int y,
+ int physical_width,
+ int physical_height,
+ int subpixel,
+ const char *make,
+ const char *model,
+ int transform)
+{
+ struct output *output = data;
+
+ output->allocation.x = x;
+ output->allocation.y = y;
+ output->transform = transform;
+}
+
+static void
+display_handle_done(void *data,
+ struct wl_output *wl_output)
+{
+}
+
+static void
+display_handle_scale(void *data,
+ struct wl_output *wl_output,
+ int32_t scale)
+{
+ struct output *output = data;
+
+ output->scale = scale;
+}
+
+static void
+display_handle_mode(void *data,
+ struct wl_output *wl_output,
+ uint32_t flags,
+ int width,
+ int height,
+ int refresh)
+{
+ struct output *output = data;
+ struct display *display = output->display;
+
+ if (flags & WL_OUTPUT_MODE_CURRENT) {
+ output->allocation.width = width;
+ output->allocation.height = height;
+ if (display->output_configure_handler)
+ (*display->output_configure_handler)(
+ output, display->user_data);
+ }
+}
+
+static const struct wl_output_listener output_listener = {
+ display_handle_geometry,
+ display_handle_mode,
+ display_handle_done,
+ display_handle_scale
+};
+
+static void
+display_add_output(struct display *d, uint32_t id)
+{
+ struct output *output;
+
+ output = malloc(sizeof *output);
+ if (output == NULL)
+ return;
+
+ memset(output, 0, sizeof *output);
+ output->display = d;
+ output->scale = 1;
+ output->output =
+ wl_registry_bind(d->registry, id, &wl_output_interface, 2);
+ wl_list_insert(d->output_list.prev, &output->link);
+
+ wl_output_add_listener(output->output, &output_listener, output);
+}
+
+static void
+output_destroy(struct output *output)
+{
+ if (output->destroy_handler)
+ (*output->destroy_handler)(output, output->user_data);
+
+ wl_output_destroy(output->output);
+ wl_list_remove(&output->link);
+ free(output);
+}
+
+void
+display_set_global_handler(struct display *display,
+ display_global_handler_t handler)
+{
+ struct global *global;
+
+ display->global_handler = handler;
+ if (!handler)
+ return;
+
+ wl_list_for_each(global, &display->global_list, link)
+ display->global_handler(display,
+ global->name, global->interface,
+ global->version, display->user_data);
+}
+
+void
+display_set_output_configure_handler(struct display *display,
+ display_output_handler_t handler)
+{
+ struct output *output;
+
+ display->output_configure_handler = handler;
+ if (!handler)
+ return;
+
+ wl_list_for_each(output, &display->output_list, link) {
+ if (output->allocation.width == 0 &&
+ output->allocation.height == 0)
+ continue;
+
+ (*display->output_configure_handler)(output,
+ display->user_data);
+ }
+}
+
+void
+output_set_user_data(struct output *output, void *data)
+{
+ output->user_data = data;
+}
+
+void *
+output_get_user_data(struct output *output)
+{
+ return output->user_data;
+}
+
+void
+output_set_destroy_handler(struct output *output,
+ display_output_handler_t handler)
+{
+ output->destroy_handler = handler;
+ /* FIXME: implement this, once we have way to remove outputs */
+}
+
+void
+output_get_allocation(struct output *output, struct rectangle *base)
+{
+ struct rectangle allocation = output->allocation;
+
+ switch (output->transform) {
+ case WL_OUTPUT_TRANSFORM_90:
+ case WL_OUTPUT_TRANSFORM_270:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_90:
+ case WL_OUTPUT_TRANSFORM_FLIPPED_270:
+ /* Swap width and height */
+ allocation.width = output->allocation.height;
+ allocation.height = output->allocation.width;
+ break;
+ }
+
+ *base = allocation;
+}
+
+struct wl_output *
+output_get_wl_output(struct output *output)
+{
+ return output->output;
+}
+
+enum wl_output_transform
+output_get_transform(struct output *output)
+{
+ return output->transform;
+}
+
+uint32_t
+output_get_scale(struct output *output)
+{
+ return output->scale;
+}
+
+static void
+fini_xkb(struct input *input)
+{
+ xkb_state_unref(input->xkb.state);
+ xkb_map_unref(input->xkb.keymap);
+}
+
+static void
+display_add_input(struct display *d, uint32_t id)
+{
+ struct input *input;
+
+ input = malloc(sizeof *input);
+ if (input == NULL)
+ return;
+
+ memset(input, 0, sizeof *input);
+ input->display = d;
+ input->seat = wl_registry_bind(d->registry, id, &wl_seat_interface, 1);
+ input->pointer_focus = NULL;
+ input->keyboard_focus = NULL;
+ wl_list_insert(d->input_list.prev, &input->link);
+
+ wl_seat_add_listener(input->seat, &seat_listener, input);
+ wl_seat_set_user_data(input->seat, input);
+
+ input->data_device =
+ wl_data_device_manager_get_data_device(d->data_device_manager,
+ input->seat);
+ wl_data_device_add_listener(input->data_device, &data_device_listener,
+ input);
+
+ input->pointer_surface = wl_compositor_create_surface(d->compositor);
+
+ input->repeat_timer_fd = timerfd_create(CLOCK_MONOTONIC,
+ TFD_CLOEXEC | TFD_NONBLOCK);
+ input->repeat_task.run = keyboard_repeat_func;
+ display_watch_fd(d, input->repeat_timer_fd,
+ EPOLLIN, &input->repeat_task);
+}
+
+static void
+input_destroy(struct input *input)
+{
+ input_remove_keyboard_focus(input);
+ input_remove_pointer_focus(input);
+
+ if (input->drag_offer)
+ data_offer_destroy(input->drag_offer);
+
+ if (input->selection_offer)
+ data_offer_destroy(input->selection_offer);
+
+ wl_data_device_destroy(input->data_device);
+ fini_xkb(input);
+
+ wl_surface_destroy(input->pointer_surface);
+
+ wl_list_remove(&input->link);
+ wl_seat_destroy(input->seat);
+ close(input->repeat_timer_fd);
+ free(input);
+}
+
+static void
+init_workspace_manager(struct display *d, uint32_t id)
+{
+ d->workspace_manager =
+ wl_registry_bind(d->registry, id,
+ &workspace_manager_interface, 1);
+ if (d->workspace_manager != NULL)
+ workspace_manager_add_listener(d->workspace_manager,
+ &workspace_manager_listener,
+ d);
+}
+
+static void
+registry_handle_global(void *data, struct wl_registry *registry, uint32_t id,
+ const char *interface, uint32_t version)
+{
+ struct display *d = data;
+ struct global *global;
+
+ global = malloc(sizeof *global);
+ global->name = id;
+ global->interface = strdup(interface);
+ global->version = version;
+ wl_list_insert(d->global_list.prev, &global->link);
+
+ if (strcmp(interface, "wl_compositor") == 0) {
+ d->compositor = wl_registry_bind(registry, id,
+ &wl_compositor_interface, 3);
+ } else if (strcmp(interface, "wl_output") == 0) {
+ display_add_output(d, id);
+ } else if (strcmp(interface, "wl_seat") == 0) {
+ display_add_input(d, id);
+ } else if (strcmp(interface, "xdg_shell") == 0) {
+ d->shell = wl_registry_bind(registry,
+ id, &xdg_shell_interface, 1);
+ } else if (strcmp(interface, "wl_shm") == 0) {
+ d->shm = wl_registry_bind(registry, id, &wl_shm_interface, 1);
+ } else if (strcmp(interface, "wl_data_device_manager") == 0) {
+ d->data_device_manager =
+ wl_registry_bind(registry, id,
+ &wl_data_device_manager_interface, 1);
+ } else if (strcmp(interface, "text_cursor_position") == 0) {
+ d->text_cursor_position =
+ wl_registry_bind(registry, id,
+ &text_cursor_position_interface, 1);
+ } else if (strcmp(interface, "workspace_manager") == 0) {
+ init_workspace_manager(d, id);
+ } else if (strcmp(interface, "wl_subcompositor") == 0) {
+ d->subcompositor =
+ wl_registry_bind(registry, id,
+ &wl_subcompositor_interface, 1);
+ }
+
+ if (d->global_handler)
+ d->global_handler(d, id, interface, version, d->user_data);
+}
+
+static void
+registry_handle_global_remove(void *data, struct wl_registry *registry,
+ uint32_t name)
+{
+ struct display *d = data;
+ struct global *global;
+ struct global *tmp;
+
+ wl_list_for_each_safe(global, tmp, &d->global_list, link) {
+ if (global->name != name)
+ continue;
+
+ /* XXX: Should destroy bound globals, and call
+ * the counterpart of display::global_handler
+ */
+ wl_list_remove(&global->link);
+ free(global->interface);
+ free(global);
+ }
+}
+
+void *
+display_bind(struct display *display, uint32_t name,
+ const struct wl_interface *interface, uint32_t version)
+{
+ return wl_registry_bind(display->registry, name, interface, version);
+}
+
+static const struct wl_registry_listener registry_listener = {
+ registry_handle_global,
+ registry_handle_global_remove
+};
+
+#ifdef HAVE_CAIRO_EGL
+static int
+init_egl(struct display *d)
+{
+ EGLint major, minor;
+ EGLint n;
+
+#ifdef USE_CAIRO_GLESV2
+# define GL_BIT EGL_OPENGL_ES2_BIT
+#else
+# define GL_BIT EGL_OPENGL_BIT
+#endif
+
+ static const EGLint argb_cfg_attribs[] = {
+ EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_ALPHA_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_RENDERABLE_TYPE, GL_BIT,
+ EGL_NONE
+ };
+
+#ifdef USE_CAIRO_GLESV2
+ static const EGLint context_attribs[] = {
+ EGL_CONTEXT_CLIENT_VERSION, 2,
+ EGL_NONE
+ };
+ EGLint api = EGL_OPENGL_ES_API;
+#else
+ EGLint *context_attribs = NULL;
+ EGLint api = EGL_OPENGL_API;
+#endif
+
+ d->dpy = eglGetDisplay(d->display);
+ if (!eglInitialize(d->dpy, &major, &minor)) {
+ fprintf(stderr, "failed to initialize EGL\n");
+ return -1;
+ }
+
+ if (!eglBindAPI(api)) {
+ fprintf(stderr, "failed to bind EGL client API\n");
+ return -1;
+ }
+
+ if (!eglChooseConfig(d->dpy, argb_cfg_attribs,
+ &d->argb_config, 1, &n) || n != 1) {
+ fprintf(stderr, "failed to choose argb EGL config\n");
+ return -1;
+ }
+
+ d->argb_ctx = eglCreateContext(d->dpy, d->argb_config,
+ EGL_NO_CONTEXT, context_attribs);
+ if (d->argb_ctx == NULL) {
+ fprintf(stderr, "failed to create EGL context\n");
+ return -1;
+ }
+
+ if (!eglMakeCurrent(d->dpy, NULL, NULL, d->argb_ctx)) {
+ fprintf(stderr, "failed to make EGL context current\n");
+ return -1;
+ }
+
+ d->argb_device = cairo_egl_device_create(d->dpy, d->argb_ctx);
+ if (cairo_device_status(d->argb_device) != CAIRO_STATUS_SUCCESS) {
+ fprintf(stderr, "failed to get cairo EGL argb device\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static void
+fini_egl(struct display *display)
+{
+ cairo_device_destroy(display->argb_device);
+
+ eglMakeCurrent(display->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE,
+ EGL_NO_CONTEXT);
+
+ eglTerminate(display->dpy);
+ eglReleaseThread();
+}
+#endif
+
+static void
+init_dummy_surface(struct display *display)
+{
+ int len;
+ void *data;
+
+ len = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, 1);
+ data = malloc(len);
+ display->dummy_surface =
+ cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32,
+ 1, 1, len);
+ display->dummy_surface_data = data;
+}
+
+static void
+handle_display_data(struct task *task, uint32_t events)
+{
+ struct display *display =
+ container_of(task, struct display, display_task);
+ struct epoll_event ep;
+ int ret;
+
+ display->display_fd_events = events;
+
+ if (events & EPOLLERR || events & EPOLLHUP) {
+ display_exit(display);
+ return;
+ }
+
+ if (events & EPOLLIN) {
+ ret = wl_display_dispatch(display->display);
+ if (ret == -1) {
+ display_exit(display);
+ return;
+ }
+ }
+
+ if (events & EPOLLOUT) {
+ ret = wl_display_flush(display->display);
+ if (ret == 0) {
+ ep.events = EPOLLIN | EPOLLERR | EPOLLHUP;
+ ep.data.ptr = &display->display_task;
+ epoll_ctl(display->epoll_fd, EPOLL_CTL_MOD,
+ display->display_fd, &ep);
+ } else if (ret == -1 && errno != EAGAIN) {
+ display_exit(display);
+ return;
+ }
+ }
+}
+
+static void
+log_handler(const char *format, va_list args)
+{
+ vfprintf(stderr, format, args);
+}
+
+struct display *
+display_create(int *argc, char *argv[])
+{
+ struct display *d;
+
+ wl_log_set_handler_client(log_handler);
+
+ d = malloc(sizeof *d);
+ if (d == NULL)
+ return NULL;
+
+ memset(d, 0, sizeof *d);
+
+ d->display = wl_display_connect(NULL);
+ if (d->display == NULL) {
+ fprintf(stderr, "failed to connect to Wayland display: %m\n");
+ free(d);
+ return NULL;
+ }
+
+ d->epoll_fd = os_epoll_create_cloexec();
+ d->display_fd = wl_display_get_fd(d->display);
+ d->display_task.run = handle_display_data;
+ display_watch_fd(d, d->display_fd, EPOLLIN | EPOLLERR | EPOLLHUP,
+ &d->display_task);
+
+ wl_list_init(&d->deferred_list);
+ wl_list_init(&d->input_list);
+ wl_list_init(&d->output_list);
+ wl_list_init(&d->global_list);
+
+ d->xkb_context = xkb_context_new(0);
+ if (d->xkb_context == NULL) {
+ fprintf(stderr, "Failed to create XKB context\n");
+ return NULL;
+ }
+
+ d->workspace = 0;
+ d->workspace_count = 1;
+
+ d->registry = wl_display_get_registry(d->display);
+ wl_registry_add_listener(d->registry, ®istry_listener, d);
+
+ if (wl_display_dispatch(d->display) < 0) {
+ fprintf(stderr, "Failed to process Wayland connection: %m\n");
+ return NULL;
+ }
+
+#ifdef HAVE_CAIRO_EGL
+ if (init_egl(d) < 0)
+ fprintf(stderr, "EGL does not seem to work, "
+ "falling back to software rendering and wl_shm.\n");
+#endif
+
+ create_cursors(d);
+
+ d->theme = theme_create();
+
+ wl_list_init(&d->window_list);
+
+ init_dummy_surface(d);
+
+ return d;
+}
+
+static void
+display_destroy_outputs(struct display *display)
+{
+ struct output *tmp;
+ struct output *output;
+
+ wl_list_for_each_safe(output, tmp, &display->output_list, link)
+ output_destroy(output);
+}
+
+static void
+display_destroy_inputs(struct display *display)
+{
+ struct input *tmp;
+ struct input *input;
+
+ wl_list_for_each_safe(input, tmp, &display->input_list, link)
+ input_destroy(input);
+}
+
+void
+display_destroy(struct display *display)
+{
+ if (!wl_list_empty(&display->window_list))
+ fprintf(stderr, "toytoolkit warning: %d windows exist.\n",
+ wl_list_length(&display->window_list));
+
+ if (!wl_list_empty(&display->deferred_list))
+ fprintf(stderr, "toytoolkit warning: deferred tasks exist.\n");
+
+ cairo_surface_destroy(display->dummy_surface);
+ free(display->dummy_surface_data);
+
+ display_destroy_outputs(display);
+ display_destroy_inputs(display);
+
+ xkb_context_unref(display->xkb_context);
+
+ theme_destroy(display->theme);
+ destroy_cursors(display);
+
+#ifdef HAVE_CAIRO_EGL
+ if (display->argb_device)
+ fini_egl(display);
+#endif
+
+ if (display->subcompositor)
+ wl_subcompositor_destroy(display->subcompositor);
+
+ if (display->shell)
+ xdg_shell_destroy(display->shell);
+
+ if (display->shm)
+ wl_shm_destroy(display->shm);
+
+ if (display->data_device_manager)
+ wl_data_device_manager_destroy(display->data_device_manager);
+
+ wl_compositor_destroy(display->compositor);
+ wl_registry_destroy(display->registry);
+
+ close(display->epoll_fd);
+
+ if (!(display->display_fd_events & EPOLLERR) &&
+ !(display->display_fd_events & EPOLLHUP))
+ wl_display_flush(display->display);
+
+ wl_display_disconnect(display->display);
+ free(display);
+}
+
+void
+display_set_user_data(struct display *display, void *data)
+{
+ display->user_data = data;
+}
+
+void *
+display_get_user_data(struct display *display)
+{
+ return display->user_data;
+}
+
+struct wl_display *
+display_get_display(struct display *display)
+{
+ return display->display;
+}
+
+cairo_device_t *
+display_get_cairo_device(struct display *display)
+{
+ return display->argb_device;
+}
+
+struct output *
+display_get_output(struct display *display)
+{
+ return container_of(display->output_list.next, struct output, link);
+}
+
+struct wl_compositor *
+display_get_compositor(struct display *display)
+{
+ return display->compositor;
+}
+
+uint32_t
+display_get_serial(struct display *display)
+{
+ return display->serial;
+}
+
+EGLDisplay
+display_get_egl_display(struct display *d)
+{
+ return d->dpy;
+}
+
+struct wl_data_source *
+display_create_data_source(struct display *display)
+{
+ return wl_data_device_manager_create_data_source(display->data_device_manager);
+}
+
+EGLConfig
+display_get_argb_egl_config(struct display *d)
+{
+ return d->argb_config;
+}
+
+struct xdg_shell *
+display_get_shell(struct display *display)
+{
+ return display->shell;
+}
+
+int
+display_acquire_window_surface(struct display *display,
+ struct window *window,
+ EGLContext ctx)
+{
+ struct surface *surface = window->main_surface;
+
+ if (surface->buffer_type != WINDOW_BUFFER_TYPE_EGL_WINDOW)
+ return -1;
+
+ widget_get_cairo_surface(window->main_surface->widget);
+ return surface->toysurface->acquire(surface->toysurface, ctx);
+}
+
+void
+display_release_window_surface(struct display *display,
+ struct window *window)
+{
+ struct surface *surface = window->main_surface;
+
+ if (surface->buffer_type != WINDOW_BUFFER_TYPE_EGL_WINDOW)
+ return;
+
+ surface->toysurface->release(surface->toysurface);
+}
+
+void
+display_defer(struct display *display, struct task *task)
+{
+ wl_list_insert(&display->deferred_list, &task->link);
+}
+
+void
+display_watch_fd(struct display *display,
+ int fd, uint32_t events, struct task *task)
+{
+ struct epoll_event ep;
+
+ ep.events = events;
+ ep.data.ptr = task;
+ epoll_ctl(display->epoll_fd, EPOLL_CTL_ADD, fd, &ep);
+}
+
+void
+display_unwatch_fd(struct display *display, int fd)
+{
+ epoll_ctl(display->epoll_fd, EPOLL_CTL_DEL, fd, NULL);
+}
+
+void
+display_run(struct display *display)
+{
+ struct task *task;
+ struct epoll_event ep[16];
+ int i, count, ret;
+
+ display->running = 1;
+ while (1) {
+ while (!wl_list_empty(&display->deferred_list)) {
+ task = container_of(display->deferred_list.prev,
+ struct task, link);
+ wl_list_remove(&task->link);
+ task->run(task, 0);
+ }
+
+ wl_display_dispatch_pending(display->display);
+
+ if (!display->running)
+ break;
+
+ ret = wl_display_flush(display->display);
+ if (ret < 0 && errno == EAGAIN) {
+ ep[0].events =
+ EPOLLIN | EPOLLOUT | EPOLLERR | EPOLLHUP;
+ ep[0].data.ptr = &display->display_task;
+
+ epoll_ctl(display->epoll_fd, EPOLL_CTL_MOD,
+ display->display_fd, &ep[0]);
+ } else if (ret < 0) {
+ break;
+ }
+
+ count = epoll_wait(display->epoll_fd,
+ ep, ARRAY_LENGTH(ep), -1);
+ for (i = 0; i < count; i++) {
+ task = ep[i].data.ptr;
+ task->run(task, ep[i].events);
+ }
+ }
+}
+
+void
+display_exit(struct display *display)
+{
+ display->running = 0;
+}
+
+void
+keysym_modifiers_add(struct wl_array *modifiers_map,
+ const char *name)
+{
+ size_t len = strlen(name) + 1;
+ char *p;
+
+ p = wl_array_add(modifiers_map, len);
+
+ if (p == NULL)
+ return;
+
+ strncpy(p, name, len);
+}
+
+static xkb_mod_index_t
+keysym_modifiers_get_index(struct wl_array *modifiers_map,
+ const char *name)
+{
+ xkb_mod_index_t index = 0;
+ char *p = modifiers_map->data;
+
+ while ((const char *)p < (const char *)(modifiers_map->data + modifiers_map->size)) {
+ if (strcmp(p, name) == 0)
+ return index;
+
+ index++;
+ p += strlen(p) + 1;
+ }
+
+ return XKB_MOD_INVALID;
+}
+
+xkb_mod_mask_t
+keysym_modifiers_get_mask(struct wl_array *modifiers_map,
+ const char *name)
+{
+ xkb_mod_index_t index = keysym_modifiers_get_index(modifiers_map, name);
+
+ if (index == XKB_MOD_INVALID)
+ return XKB_MOD_INVALID;
+
+ return 1 << index;
+}
diff --git a/clients/xdg_window.h b/clients/xdg_window.h
new file mode 100644
index 0000000..4795666
--- /dev/null
+++ b/clients/xdg_window.h
@@ -0,0 +1,532 @@
+/*
+ * Copyright © 2008 Kristian Høgsberg
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _WINDOW_H_
+#define _WINDOW_H_
+
+#include <xkbcommon/xkbcommon.h>
+#include <wayland-client.h>
+#include "xdg-surface-client-protocol.h"
+#include <cairo.h>
+#include "../shared/config-parser.h"
+#include "subsurface-client-protocol.h"
+
+#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
+
+#define container_of(ptr, type, member) ({ \
+ const __typeof__( ((type *)0)->member ) *__mptr = (ptr); \
+ (type *)( (char *)__mptr - offsetof(type,member) );})
+
+struct window;
+struct widget;
+struct display;
+struct input;
+struct output;
+
+struct task {
+ void (*run)(struct task *task, uint32_t events);
+ struct wl_list link;
+};
+
+struct rectangle {
+ int32_t x;
+ int32_t y;
+ int32_t width;
+ int32_t height;
+};
+
+struct display *
+display_create(int *argc, char *argv[]);
+
+void
+display_destroy(struct display *display);
+
+void
+display_set_user_data(struct display *display, void *data);
+
+void *
+display_get_user_data(struct display *display);
+
+struct wl_display *
+display_get_display(struct display *display);
+
+cairo_device_t *
+display_get_cairo_device(struct display *display);
+
+struct wl_compositor *
+display_get_compositor(struct display *display);
+
+struct xdg_shell *
+display_get_shell(struct display *display);
+
+struct output *
+display_get_output(struct display *display);
+
+uint32_t
+display_get_serial(struct display *display);
+
+typedef void (*display_global_handler_t)(struct display *display,
+ uint32_t name,
+ const char *interface,
+ uint32_t version, void *data);
+
+void
+display_set_global_handler(struct display *display,
+ display_global_handler_t handler);
+void *
+display_bind(struct display *display, uint32_t name,
+ const struct wl_interface *interface, uint32_t version);
+
+typedef void (*display_output_handler_t)(struct output *output, void *data);
+
+/*
+ * The output configure handler is called, when a new output is connected
+ * and we know its current mode, or when the current mode changes.
+ * Test and set the output user data in your handler to know, if the
+ * output is new. Note: 'data' in the configure handler is the display
+ * user data.
+ */
+void
+display_set_output_configure_handler(struct display *display,
+ display_output_handler_t handler);
+
+struct wl_data_source *
+display_create_data_source(struct display *display);
+
+#ifdef EGL_NO_DISPLAY
+EGLDisplay
+display_get_egl_display(struct display *d);
+
+EGLConfig
+display_get_argb_egl_config(struct display *d);
+
+int
+display_acquire_window_surface(struct display *display,
+ struct window *window,
+ EGLContext ctx);
+void
+display_release_window_surface(struct display *display,
+ struct window *window);
+#endif
+
+#define SURFACE_OPAQUE 0x01
+#define SURFACE_SHM 0x02
+
+#define SURFACE_HINT_RESIZE 0x10
+
+cairo_surface_t *
+display_create_surface(struct display *display,
+ struct wl_surface *surface,
+ struct rectangle *rectangle,
+ uint32_t flags);
+
+struct wl_buffer *
+display_get_buffer_for_surface(struct display *display,
+ cairo_surface_t *surface);
+
+struct wl_cursor_image *
+display_get_pointer_image(struct display *display, int pointer);
+
+void
+display_defer(struct display *display, struct task *task);
+
+void
+display_watch_fd(struct display *display,
+ int fd, uint32_t events, struct task *task);
+
+void
+display_unwatch_fd(struct display *display, int fd);
+
+void
+display_run(struct display *d);
+
+void
+display_exit(struct display *d);
+
+enum cursor_type {
+ CURSOR_BOTTOM_LEFT,
+ CURSOR_BOTTOM_RIGHT,
+ CURSOR_BOTTOM,
+ CURSOR_DRAGGING,
+ CURSOR_LEFT_PTR,
+ CURSOR_LEFT,
+ CURSOR_RIGHT,
+ CURSOR_TOP_LEFT,
+ CURSOR_TOP_RIGHT,
+ CURSOR_TOP,
+ CURSOR_IBEAM,
+ CURSOR_HAND1,
+ CURSOR_WATCH,
+
+ CURSOR_BLANK
+};
+
+typedef void (*window_key_handler_t)(struct window *window, struct input *input,
+ uint32_t time, uint32_t key, uint32_t unicode,
+ enum wl_keyboard_key_state state, void *data);
+
+typedef void (*window_keyboard_focus_handler_t)(struct window *window,
+ struct input *device, void *data);
+
+typedef void (*window_data_handler_t)(struct window *window,
+ struct input *input,
+ float x, float y,
+ const char **types,
+ void *data);
+
+typedef void (*window_drop_handler_t)(struct window *window,
+ struct input *input,
+ int32_t x, int32_t y, void *data);
+
+typedef void (*window_close_handler_t)(struct window *window, void *data);
+typedef void (*window_fullscreen_handler_t)(struct window *window, void *data);
+
+typedef void (*window_output_handler_t)(struct window *window, struct output *output,
+ int enter, void *data);
+
+typedef void (*widget_resize_handler_t)(struct widget *widget,
+ int32_t width, int32_t height,
+ void *data);
+typedef void (*widget_redraw_handler_t)(struct widget *widget, void *data);
+
+typedef int (*widget_enter_handler_t)(struct widget *widget,
+ struct input *input,
+ float x, float y, void *data);
+typedef void (*widget_leave_handler_t)(struct widget *widget,
+ struct input *input, void *data);
+typedef int (*widget_motion_handler_t)(struct widget *widget,
+ struct input *input, uint32_t time,
+ float x, float y, void *data);
+typedef void (*widget_button_handler_t)(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button,
+ enum wl_pointer_button_state state,
+ void *data);
+typedef void (*widget_axis_handler_t)(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t axis,
+ wl_fixed_t value,
+ void *data);
+
+struct window *
+window_create(struct display *display);
+struct window *
+window_create_transient(struct display *display, struct window *parent,
+ int32_t x, int32_t y, uint32_t flags);
+struct window *
+window_create_custom(struct display *display);
+
+int
+window_has_focus(struct window *window);
+
+typedef void (*menu_func_t)(struct window *window, int index, void *data);
+
+void
+window_show_menu(struct display *display,
+ struct input *input, uint32_t time, struct window *parent,
+ int32_t x, int32_t y,
+ menu_func_t func, const char **entries, int count);
+
+void
+window_show_frame_menu(struct window *window,
+ struct input *input, uint32_t time);
+
+int
+window_get_buffer_transform(struct window *window);
+
+void
+window_set_buffer_transform(struct window *window,
+ enum wl_output_transform transform);
+
+uint32_t
+window_get_buffer_scale(struct window *window);
+
+void
+window_set_buffer_scale(struct window *window,
+ int32_t scale);
+
+uint32_t
+window_get_output_scale(struct window *window);
+
+void
+window_destroy(struct window *window);
+
+struct widget *
+window_add_widget(struct window *window, void *data);
+
+enum subsurface_mode {
+ SUBSURFACE_SYNCHRONIZED,
+ SUBSURFACE_DESYNCHRONIZED
+};
+
+struct widget *
+window_add_subsurface(struct window *window, void *data,
+ enum subsurface_mode default_mode);
+
+typedef void (*data_func_t)(void *data, size_t len,
+ int32_t x, int32_t y, void *user_data);
+
+struct display *
+window_get_display(struct window *window);
+void
+window_move(struct window *window, struct input *input, uint32_t time);
+void
+window_get_allocation(struct window *window, struct rectangle *allocation);
+void
+window_schedule_redraw(struct window *window);
+void
+window_schedule_resize(struct window *window, int width, int height);
+
+void
+window_damage(struct window *window, int32_t x, int32_t y,
+ int32_t width, int32_t height);
+
+cairo_surface_t *
+window_get_surface(struct window *window);
+
+struct wl_surface *
+window_get_wl_surface(struct window *window);
+
+struct xdg_surface *
+window_get_xdg_surface(struct window *window);
+
+enum window_buffer_type {
+ WINDOW_BUFFER_TYPE_EGL_WINDOW,
+ WINDOW_BUFFER_TYPE_SHM,
+};
+
+void
+display_surface_damage(struct display *display, cairo_surface_t *cairo_surface,
+ int32_t x, int32_t y, int32_t width, int32_t height);
+
+void
+window_set_buffer_type(struct window *window, enum window_buffer_type type);
+
+int
+window_is_fullscreen(struct window *window);
+
+void
+window_set_fullscreen(struct window *window, int fullscreen);
+
+void
+window_set_fullscreen_method(struct window *window,
+ enum xdg_surface_fullscreen_method method);
+int
+window_is_maximized(struct window *window);
+
+void
+window_set_maximized(struct window *window, int maximized);
+
+void
+window_set_user_data(struct window *window, void *data);
+
+void *
+window_get_user_data(struct window *window);
+
+void
+window_set_key_handler(struct window *window,
+ window_key_handler_t handler);
+
+void
+window_set_keyboard_focus_handler(struct window *window,
+ window_keyboard_focus_handler_t handler);
+
+void
+window_set_data_handler(struct window *window,
+ window_data_handler_t handler);
+
+void
+window_set_drop_handler(struct window *window,
+ window_drop_handler_t handler);
+
+void
+window_set_close_handler(struct window *window,
+ window_close_handler_t handler);
+void
+window_set_fullscreen_handler(struct window *window,
+ window_fullscreen_handler_t handler);
+void
+window_set_output_handler(struct window *window,
+ window_output_handler_t handler);
+
+void
+window_set_title(struct window *window, const char *title);
+
+const char *
+window_get_title(struct window *window);
+
+void
+window_set_text_cursor_position(struct window *window, int32_t x, int32_t y);
+
+int
+widget_set_tooltip(struct widget *parent, char *entry, float x, float y);
+
+void
+widget_destroy_tooltip(struct widget *parent);
+
+struct widget *
+widget_add_widget(struct widget *parent, void *data);
+
+void
+widget_destroy(struct widget *widget);
+void
+widget_set_default_cursor(struct widget *widget, int cursor);
+void
+widget_get_allocation(struct widget *widget, struct rectangle *allocation);
+
+void
+widget_set_allocation(struct widget *widget,
+ int32_t x, int32_t y, int32_t width, int32_t height);
+void
+widget_set_size(struct widget *widget, int32_t width, int32_t height);
+void
+widget_set_transparent(struct widget *widget, int transparent);
+void
+widget_schedule_resize(struct widget *widget, int32_t width, int32_t height);
+
+void *
+widget_get_user_data(struct widget *widget);
+
+cairo_t *
+widget_cairo_create(struct widget *widget);
+
+struct wl_surface *
+widget_get_wl_surface(struct widget *widget);
+
+uint32_t
+widget_get_last_time(struct widget *widget);
+
+void
+widget_input_region_add(struct widget *widget, const struct rectangle *rect);
+
+void
+widget_set_redraw_handler(struct widget *widget,
+ widget_redraw_handler_t handler);
+void
+widget_set_resize_handler(struct widget *widget,
+ widget_resize_handler_t handler);
+void
+widget_set_enter_handler(struct widget *widget,
+ widget_enter_handler_t handler);
+void
+widget_set_leave_handler(struct widget *widget,
+ widget_leave_handler_t handler);
+void
+widget_set_motion_handler(struct widget *widget,
+ widget_motion_handler_t handler);
+void
+widget_set_button_handler(struct widget *widget,
+ widget_button_handler_t handler);
+void
+widget_set_axis_handler(struct widget *widget,
+ widget_axis_handler_t handler);
+
+void
+widget_schedule_redraw(struct widget *widget);
+
+struct widget *
+frame_create(struct window *window, void *data);
+
+void
+frame_set_child_size(struct widget *widget, int child_width, int child_height);
+
+void
+input_set_pointer_image(struct input *input, int pointer);
+
+void
+input_get_position(struct input *input, int32_t *x, int32_t *y);
+
+#define MOD_SHIFT_MASK 0x01
+#define MOD_ALT_MASK 0x02
+#define MOD_CONTROL_MASK 0x04
+
+uint32_t
+input_get_modifiers(struct input *input);
+
+void
+input_grab(struct input *input, struct widget *widget, uint32_t button);
+
+void
+input_ungrab(struct input *input);
+
+struct widget *
+input_get_focus_widget(struct input *input);
+
+struct display *
+input_get_display(struct input *input);
+
+struct wl_seat *
+input_get_seat(struct input *input);
+
+struct wl_data_device *
+input_get_data_device(struct input *input);
+
+void
+input_set_selection(struct input *input,
+ struct wl_data_source *source, uint32_t time);
+
+void
+input_accept(struct input *input, const char *type);
+
+
+void
+input_receive_drag_data(struct input *input, const char *mime_type,
+ data_func_t func, void *user_data);
+
+int
+input_receive_selection_data(struct input *input, const char *mime_type,
+ data_func_t func, void *data);
+int
+input_receive_selection_data_to_fd(struct input *input,
+ const char *mime_type, int fd);
+
+void
+output_set_user_data(struct output *output, void *data);
+
+void *
+output_get_user_data(struct output *output);
+
+void
+output_set_destroy_handler(struct output *output,
+ display_output_handler_t handler);
+
+void
+output_get_allocation(struct output *output, struct rectangle *allocation);
+
+struct wl_output *
+output_get_wl_output(struct output *output);
+
+enum wl_output_transform
+output_get_transform(struct output *output);
+
+uint32_t
+output_get_scale(struct output *output);
+
+void
+keysym_modifiers_add(struct wl_array *modifiers_map,
+ const char *name);
+
+xkb_mod_mask_t
+keysym_modifiers_get_mask(struct wl_array *modifiers_map,
+ const char *name);
+
+#endif
--
1.7.11.7
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