[PATCH weston v3] xwm: let the shells decide the position of X windows
Giulio Camuffo
giuliocamuffo at gmail.com
Wed Dec 2 03:05:33 PST 2015
The xwm used to automatically send to Xwayland the position of X windows
when that changed, using the x,y of the primary view of the surface.
This works fine for the desktop shell but less so for others.
This patch adds a 'send_position' vfunc to the weston_shell_client that
the shell will call when it wants to let Xwayland know what the position
of a window is.
The logic used by the desktop-shell for that is exactly the same the xwm
used to have.
---
v3: rebased, no actual change
desktop-shell/shell.c | 40 +++++++++++++++++++-------
desktop-shell/shell.h | 1 +
src/compositor.h | 4 +--
xwayland/window-manager.c | 72 +++++++++++++++++++++--------------------------
xwayland/xwayland.h | 1 -
5 files changed, 64 insertions(+), 54 deletions(-)
diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
index 780902d..85664c6 100644
--- a/desktop-shell/shell.c
+++ b/desktop-shell/shell.c
@@ -1813,7 +1813,8 @@ send_configure(struct weston_surface *surface, int32_t width, int32_t height)
}
static const struct weston_shell_client shell_client = {
- send_configure
+ send_configure,
+ NULL
};
static void
@@ -3704,12 +3705,6 @@ create_shell_surface(void *shell, struct weston_surface *surface,
return create_common_surface(NULL, shell, surface, client);
}
-static struct weston_view *
-get_primary_view(void *shell, struct shell_surface *shsurf)
-{
- return shsurf->view;
-}
-
static void
shell_get_shell_surface(struct wl_client *client,
struct wl_resource *resource,
@@ -3995,7 +3990,8 @@ xdg_send_configure(struct weston_surface *surface,
}
static const struct weston_shell_client xdg_client = {
- xdg_send_configure
+ xdg_send_configure,
+ NULL
};
static void
@@ -4119,7 +4115,8 @@ xdg_popup_send_configure(struct weston_surface *surface,
}
static const struct weston_shell_client xdg_popup_client = {
- xdg_popup_send_configure
+ xdg_popup_send_configure,
+ NULL
};
static struct shell_surface *
@@ -5412,6 +5409,27 @@ wake_handler(struct wl_listener *listener, void *data)
}
static void
+transform_handler(struct wl_listener *listener, void *data)
+{
+ struct weston_surface *surface = data;
+ struct shell_surface *shsurf = get_shell_surface(surface);
+ struct weston_view *view;;
+ int x, y;
+
+ if (!shsurf || !shsurf->client->send_position)
+ return;
+
+ view = shsurf->view;
+ if (!view || !weston_view_is_mapped(view))
+ return;
+
+ x = view->geometry.x;
+ y = view->geometry.y;
+
+ shsurf->client->send_position(surface, x, y);
+}
+
+static void
center_on_output(struct weston_view *view, struct weston_output *output)
{
int32_t surf_x, surf_y, width, height;
@@ -6379,6 +6397,7 @@ shell_destroy(struct wl_listener *listener, void *data)
wl_list_remove(&shell->idle_listener.link);
wl_list_remove(&shell->wake_listener.link);
+ wl_list_remove(&shell->transform_listener.link);
text_backend_destroy(shell->text_backend);
input_panel_destroy(shell);
@@ -6520,10 +6539,11 @@ module_init(struct weston_compositor *ec,
wl_signal_add(&ec->idle_signal, &shell->idle_listener);
shell->wake_listener.notify = wake_handler;
wl_signal_add(&ec->wake_signal, &shell->wake_listener);
+ shell->transform_listener.notify = transform_handler;
+ wl_signal_add(&ec->transform_signal, &shell->transform_listener);
ec->shell_interface.shell = shell;
ec->shell_interface.create_shell_surface = create_shell_surface;
- ec->shell_interface.get_primary_view = get_primary_view;
ec->shell_interface.set_toplevel = set_toplevel;
ec->shell_interface.set_transient = set_transient;
ec->shell_interface.set_fullscreen = shell_interface_set_fullscreen;
diff --git a/desktop-shell/shell.h b/desktop-shell/shell.h
index 2ef23f4..c55a225 100644
--- a/desktop-shell/shell.h
+++ b/desktop-shell/shell.h
@@ -121,6 +121,7 @@ struct desktop_shell {
struct wl_listener idle_listener;
struct wl_listener wake_listener;
+ struct wl_listener transform_listener;
struct wl_listener destroy_listener;
struct wl_listener show_input_panel_listener;
struct wl_listener hide_input_panel_listener;
diff --git a/src/compositor.h b/src/compositor.h
index 1d04481..56713cc 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -86,6 +86,7 @@ struct weston_mode {
struct weston_shell_client {
void (*send_configure)(struct weston_surface *surface, int32_t width, int32_t height);
+ void (*send_position)(struct weston_surface *surface, int32_t x, int32_t y);
};
struct weston_shell_interface {
@@ -94,9 +95,6 @@ struct weston_shell_interface {
struct shell_surface *(*create_shell_surface)(void *shell,
struct weston_surface *surface,
const struct weston_shell_client *client);
- struct weston_view *(*get_primary_view)(void *shell,
- struct shell_surface *shsurf);
-
void (*set_toplevel)(struct shell_surface *shsurf);
void (*set_transient)(struct shell_surface *shsurf,
diff --git a/xwayland/window-manager.c b/xwayland/window-manager.c
index 9398d24..6ea3a88 100644
--- a/xwayland/window-manager.c
+++ b/xwayland/window-manager.c
@@ -145,6 +145,7 @@ struct weston_wm_window {
xcb_atom_t type;
int width, height;
int x, y;
+ int pos_dirty;
int saved_width, saved_height;
int decorate;
int override_redirect;
@@ -692,6 +693,8 @@ weston_wm_handle_configure_notify(struct weston_wm *wm, xcb_generic_event_t *eve
window->x = configure_notify->x;
window->y = configure_notify->y;
+ window->pos_dirty = 0;
+
if (window->override_redirect) {
window->width = configure_notify->width;
window->height = configure_notify->height;
@@ -808,41 +811,6 @@ weston_wm_window_activate(struct wl_listener *listener, void *data)
}
-static void
-weston_wm_window_transform(struct wl_listener *listener, void *data)
-{
- struct weston_surface *surface = data;
- struct weston_wm_window *window = get_wm_window(surface);
- struct weston_wm *wm =
- container_of(listener, struct weston_wm, transform_listener);
- struct weston_view *view;
- struct weston_shell_interface *shell_interface =
- &wm->server->compositor->shell_interface;
- uint32_t mask, values[2];
-
- if (!window || !wm || !window->shsurf)
- return;
-
- if (!shell_interface->get_primary_view)
- return;
-
- view = shell_interface->get_primary_view(shell_interface->shell,
- window->shsurf);
-
- if (!view || !weston_view_is_mapped(view))
- return;
-
- if (window->x != view->geometry.x ||
- window->y != view->geometry.y) {
- values[0] = view->geometry.x;
- values[1] = view->geometry.y;
- mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y;
-
- xcb_configure_window(wm->conn, window->frame_id, mask, values);
- xcb_flush(wm->conn);
- }
-}
-
#define ICCCM_WITHDRAWN_STATE 0
#define ICCCM_NORMAL_STATE 1
#define ICCCM_ICONIC_STATE 3
@@ -1226,6 +1194,7 @@ weston_wm_window_create(struct weston_wm *wm,
window->height = height;
window->x = x;
window->y = y;
+ window->pos_dirty = 0;
geometry_reply = xcb_get_geometry_reply(wm->conn, geometry_cookie, NULL);
/* technically we should use XRender and check the visual format's
@@ -2318,9 +2287,6 @@ weston_wm_create(struct weston_xserver *wxs, int fd)
wm->activate_listener.notify = weston_wm_window_activate;
wl_signal_add(&wxs->compositor->activate_signal,
&wm->activate_listener);
- wm->transform_listener.notify = weston_wm_window_transform;
- wl_signal_add(&wxs->compositor->transform_signal,
- &wm->transform_listener);
wm->kill_listener.notify = weston_wm_kill_client;
wl_signal_add(&wxs->compositor->kill_signal,
&wm->kill_listener);
@@ -2349,7 +2315,6 @@ weston_wm_destroy(struct weston_wm *wm)
wl_list_remove(&wm->selection_listener.link);
wl_list_remove(&wm->activate_listener.link);
wl_list_remove(&wm->kill_listener.link);
- wl_list_remove(&wm->transform_listener.link);
wl_list_remove(&wm->create_surface_listener.link);
free(wm);
@@ -2440,8 +2405,35 @@ send_configure(struct weston_surface *surface, int32_t width, int32_t height)
weston_wm_window_configure, window);
}
+static void
+send_position(struct weston_surface *surface, int32_t x, int32_t y)
+{
+ struct weston_wm_window *window = get_wm_window(surface);
+ struct weston_wm *wm;
+ uint32_t mask, values[2];
+
+ if (!window || !window->wm)
+ return;
+
+ wm = window->wm;
+ /* We use pos_dirty to tell whether a configure message is in flight.
+ * This is needed in case we send two configure events in a very
+ * short time, since window->x/y is set in after a roundtrip, hence
+ * we cannot just check if the current x and y are different. */
+ if (window->x != x || window->y != y || window->pos_dirty) {
+ window->pos_dirty = 1;
+ values[0] = x;
+ values[1] = y;
+ mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y;
+
+ xcb_configure_window(wm->conn, window->frame_id, mask, values);
+ xcb_flush(wm->conn);
+ }
+}
+
static const struct weston_shell_client shell_client = {
- send_configure
+ send_configure,
+ send_position
};
static int
diff --git a/xwayland/xwayland.h b/xwayland/xwayland.h
index bace079..b1fd904 100644
--- a/xwayland/xwayland.h
+++ b/xwayland/xwayland.h
@@ -70,7 +70,6 @@ struct weston_wm {
xcb_colormap_t colormap;
struct wl_listener create_surface_listener;
struct wl_listener activate_listener;
- struct wl_listener transform_listener;
struct wl_listener kill_listener;
struct wl_list unpaired_window_list;
--
2.6.2
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