[PATCH 12/15] window: Add utils for xkb keyboard input
Jan Arne Petersen
jpetersen at openismus.com
Sun Nov 4 18:26:50 PST 2012
From: Jan Arne Petersen <jpetersen at openismus.com>
Signed-off-by: Jan Arne Petersen <jpetersen at openismus.com>
---
clients/Makefile.am | 2 +
clients/keyboard-utils.c | 173 +++++++++++++++++++++++++++++++++++++++++++++++
clients/keyboard-utils.h | 67 ++++++++++++++++++
3 files changed, 242 insertions(+)
create mode 100644 clients/keyboard-utils.c
create mode 100644 clients/keyboard-utils.h
diff --git a/clients/Makefile.am b/clients/Makefile.am
index a6927d7..3555228 100644
--- a/clients/Makefile.am
+++ b/clients/Makefile.am
@@ -76,6 +76,8 @@ noinst_LIBRARIES = libtoytoolkit.a
libtoytoolkit_a_SOURCES = \
window.c \
window.h \
+ keyboard-utils.c \
+ keyboard-utils.h \
text-cursor-position-protocol.c \
text-cursor-position-client-protocol.h \
workspaces-protocol.c \
diff --git a/clients/keyboard-utils.c b/clients/keyboard-utils.c
new file mode 100644
index 0000000..c2c5f46
--- /dev/null
+++ b/clients/keyboard-utils.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * 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 <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "keyboard-utils.h"
+
+struct keyboard_input {
+ struct xkb_context *xkb_context;
+
+ uint32_t modifiers;
+
+ 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;
+
+ void *user_data;
+ keyboard_input_key_handler_t key_handler;
+};
+
+struct keyboard_input*
+keyboard_input_create(struct xkb_context *xkb_context)
+{
+ struct keyboard_input *keyboard_input;
+
+ keyboard_input = calloc(1, sizeof *keyboard_input);
+ keyboard_input->xkb_context = xkb_context;
+
+ return keyboard_input;
+}
+
+void
+keyboard_input_destroy(struct keyboard_input *keyboard_input)
+{
+ free(keyboard_input);
+}
+
+void
+keyboard_input_handle_keymap(struct keyboard_input *keyboard_input,
+ uint32_t format, int fd, uint32_t size)
+{
+ char *map_str;
+
+ 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;
+ }
+
+ keyboard_input->keymap = xkb_map_new_from_string(keyboard_input->xkb_context,
+ map_str,
+ XKB_KEYMAP_FORMAT_TEXT_V1,
+ 0);
+
+ munmap(map_str, size);
+ close(fd);
+
+ if (!keyboard_input->keymap) {
+ fprintf(stderr, "failed to compile keymap\n");
+ return;
+ }
+
+ keyboard_input->state = xkb_state_new(keyboard_input->keymap);
+ if (!keyboard_input->state) {
+ fprintf(stderr, "failed to create XKB state\n");
+ xkb_map_unref(keyboard_input->keymap);
+ return;
+ }
+
+ keyboard_input->control_mask =
+ 1 << xkb_map_mod_get_index(keyboard_input->keymap, "Control");
+ keyboard_input->alt_mask =
+ 1 << xkb_map_mod_get_index(keyboard_input->keymap, "Mod1");
+ keyboard_input->shift_mask =
+ 1 << xkb_map_mod_get_index(keyboard_input->keymap, "Shift");
+}
+
+void
+keyboard_input_handle_key(struct keyboard_input *keyboard_input,
+ uint32_t serial, uint32_t time,
+ uint32_t key, uint32_t state_w)
+{
+ uint32_t code;
+ uint32_t num_syms;
+ const xkb_keysym_t *syms;
+ xkb_keysym_t sym;
+ enum wl_keyboard_key_state state = state_w;
+
+ if (!keyboard_input->state)
+ return;
+
+ code = key + 8;
+ num_syms = xkb_key_get_syms(keyboard_input->state, code, &syms);
+
+ sym = XKB_KEY_NoSymbol;
+ if (num_syms == 1)
+ sym = syms[0];
+
+ if (keyboard_input->key_handler)
+ (*keyboard_input->key_handler)(keyboard_input, time, key, sym,
+ state, keyboard_input->user_data);
+}
+
+void
+keyboard_input_handle_modifiers(struct keyboard_input *keyboard_input,
+ uint32_t serial, uint32_t mods_depressed,
+ uint32_t mods_latched, uint32_t mods_locked,
+ uint32_t group)
+{
+ xkb_mod_mask_t mask;
+
+ xkb_state_update_mask(keyboard_input->state, mods_depressed, mods_latched,
+ mods_locked, 0, 0, group);
+ mask = xkb_state_serialize_mods(keyboard_input->state,
+ XKB_STATE_DEPRESSED |
+ XKB_STATE_LATCHED);
+
+ keyboard_input->modifiers = 0;
+ if (mask & keyboard_input->control_mask)
+ keyboard_input->modifiers |= MOD_CONTROL_MASK;
+ if (mask & keyboard_input->alt_mask)
+ keyboard_input->modifiers |= MOD_ALT_MASK;
+ if (mask & keyboard_input->shift_mask)
+ keyboard_input->modifiers |= MOD_SHIFT_MASK;
+
+}
+
+void
+keyboard_input_set_user_data(struct keyboard_input *keyboard_input, void *data)
+{
+ keyboard_input->user_data = data;
+}
+
+void *
+keyboard_input_get_user_data(struct keyboard_input *keyboard_input)
+{
+ return keyboard_input->user_data;
+}
+
+void
+keyboard_input_set_key_handler(struct keyboard_input *keyboard_input,
+ keyboard_input_key_handler_t handler)
+{
+ keyboard_input->key_handler = handler;
+}
diff --git a/clients/keyboard-utils.h b/clients/keyboard-utils.h
new file mode 100644
index 0000000..9b1a260
--- /dev/null
+++ b/clients/keyboard-utils.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * 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 _KEYBOARD_UTILS_H_
+#define _KEYBOARD_UTILS_H_
+
+#include <xkbcommon/xkbcommon.h>
+#include <wayland-client.h>
+
+struct keyboard_input;
+
+typedef void (*keyboard_input_key_handler_t)(struct keyboard_input *keyboard_input,
+ uint32_t time, uint32_t key, uint32_t unicode,
+ enum wl_keyboard_key_state state, void *data);
+
+struct keyboard_input*
+keyboard_input_create(struct xkb_context *xkb_context);
+void
+keyboard_input_destroy(struct keyboard_input *keyboard_input);
+
+void
+keyboard_input_handle_keymap(struct keyboard_input *keyboard_input,
+ uint32_t format, int fd, uint32_t size);
+void
+keyboard_input_handle_key(struct keyboard_input *keyboard_input,
+ uint32_t serial, uint32_t time,
+ uint32_t key, uint32_t state_w);
+void
+keyboard_input_handle_modifiers(struct keyboard_input *keyboard_input,
+ uint32_t serial, uint32_t mods_depressed,
+ uint32_t mods_latched, uint32_t mods_locked,
+ uint32_t group);
+
+void
+keyboard_input_set_user_data(struct keyboard_input *keyboard_input, void *data);
+
+void *
+keyboard_input_get_user_data(struct keyboard_input *keyboard_input);
+
+void
+keyboard_input_set_key_handler(struct keyboard_input *keyboard_input,
+ keyboard_input_key_handler_t handler);
+
+#define MOD_SHIFT_MASK 0x01
+#define MOD_ALT_MASK 0x02
+#define MOD_CONTROL_MASK 0x04
+
+#endif
--
1.7.11.7
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