1 files changed, 758 insertions, 0 deletions
diff --git a/plugins/keybindings/msd-keybindings-manager.c b/plugins/keybindings/msd-keybindings-manager.c
new file mode 100644
index 0000000..c1f876c
--- /dev/null
+++ b/plugins/keybindings/msd-keybindings-manager.c
@@ -0,0 +1,758 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include <locale.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+#include <gtk/gtk.h>
+#include <X11/keysym.h>
+#include <mateconf/mateconf-client.h>
+
+#include "mate-settings-profile.h"
+#include "msd-keybindings-manager.h"
+
+#include "msd-keygrab.h"
+#include "eggaccelerators.h"
+
+#define MATECONF_BINDING_DIR "/desktop/mate/keybindings"
+#define ALLOWED_KEYS_KEY MATECONF_BINDING_DIR "/allowed_keys"
+
+#define MSD_KEYBINDINGS_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), MSD_TYPE_KEYBINDINGS_MANAGER, MsdKeybindingsManagerPrivate))
+
+typedef struct {
+ char *binding_str;
+ char *action;
+ char *mateconf_key;
+ Key key;
+ Key previous_key;
+} Binding;
+
+struct MsdKeybindingsManagerPrivate
+{
+ GSList *binding_list;
+ GSList *allowed_keys;
+ GSList *screens;
+ guint notify;
+};
+
+static void msd_keybindings_manager_class_init (MsdKeybindingsManagerClass *klass);
+static void msd_keybindings_manager_init (MsdKeybindingsManager *keybindings_manager);
+static void msd_keybindings_manager_finalize (GObject *object);
+
+G_DEFINE_TYPE (MsdKeybindingsManager, msd_keybindings_manager, G_TYPE_OBJECT)
+
+static gpointer manager_object = NULL;
+
+static GSList *
+get_screens_list (void)
+{
+ GdkDisplay *display = gdk_display_get_default();
+ int n_screens;
+ GSList *list = NULL;
+ int i;
+
+ n_screens = gdk_display_get_n_screens (display);
+
+ if (n_screens == 1) {
+ list = g_slist_append (list, gdk_screen_get_default ());
+ } else {
+ for (i = 0; i < n_screens; i++) {
+ GdkScreen *screen;
+
+ screen = gdk_display_get_screen (display, i);
+ if (screen != NULL) {
+ list = g_slist_prepend (list, screen);
+ }
+ }
+ list = g_slist_reverse (list);
+ }
+
+ return list;
+}
+
+static char *
+entry_get_string (MateConfEntry *entry)
+{
+ MateConfValue *value = mateconf_entry_get_value (entry);
+
+ if (value == NULL || value->type != MATECONF_VALUE_STRING) {
+ return NULL;
+ }
+
+ return g_strdup (mateconf_value_get_string (value));
+}
+
+static gboolean
+parse_binding (Binding *binding)
+{
+ gboolean success;
+
+ g_return_val_if_fail (binding != NULL, FALSE);
+
+ binding->key.keysym = 0;
+ binding->key.state = 0;
+ g_free (binding->key.keycodes);
+ binding->key.keycodes = NULL;
+
+ if (binding->binding_str == NULL ||
+ binding->binding_str[0] == '\0' ||
+ strcmp (binding->binding_str, "Disabled") == 0) {
+ return FALSE;
+ }
+
+ success = egg_accelerator_parse_virtual (binding->binding_str,
+ &binding->key.keysym,
+ &binding->key.keycodes,
+ &binding->key.state);
+
+ if (!success)
+ g_warning (_("Key binding (%s) is invalid"), binding->mateconf_key);
+
+ return success;
+}
+
+static gint
+compare_bindings (gconstpointer a,
+ gconstpointer b)
+{
+ Binding *key_a = (Binding *) a;
+ char *key_b = (char *) b;
+
+ return strcmp (key_b, key_a->mateconf_key);
+}
+
+static gboolean
+bindings_get_entry (MsdKeybindingsManager *manager,
+ MateConfClient *client,
+ const char *subdir)
+{
+ Binding *new_binding;
+ GSList *tmp_elem;
+ GSList *list;
+ GSList *li;
+ char *mateconf_key;
+ char *action = NULL;
+ char *key = NULL;
+
+ g_return_val_if_fail (subdir != NULL, FALSE);
+
+ mateconf_key = g_path_get_basename (subdir);
+
+ if (!mateconf_key) {
+ return FALSE;
+ }
+
+ /* Get entries for this binding */
+ list = mateconf_client_all_entries (client, subdir, NULL);
+
+ for (li = list; li != NULL; li = li->next) {
+ MateConfEntry *entry = li->data;
+ char *key_name = g_path_get_basename (mateconf_entry_get_key (entry));
+
+ if (key_name == NULL) {
+ /* ignore entry */
+ } else if (strcmp (key_name, "action") == 0) {
+ action = entry_get_string (entry);
+ } else if (strcmp (key_name, "binding") == 0) {
+ key = entry_get_string (entry);
+ }
+
+ g_free (key_name);
+ mateconf_entry_free (entry);
+ }
+
+ g_slist_free (list);
+
+ if (!action || !key) {
+ g_warning (_("Key binding (%s) is incomplete"), mateconf_key);
+ g_free (mateconf_key);
+ g_free (action);
+ g_free (key);
+ return FALSE;
+ }
+
+ tmp_elem = g_slist_find_custom (manager->priv->binding_list,
+ mateconf_key,
+ compare_bindings);
+
+ if (!tmp_elem) {
+ new_binding = g_new0 (Binding, 1);
+ } else {
+ new_binding = (Binding *) tmp_elem->data;
+ g_free (new_binding->binding_str);
+ g_free (new_binding->action);
+ g_free (new_binding->mateconf_key);
+
+ new_binding->previous_key.keysym = new_binding->key.keysym;
+ new_binding->previous_key.state = new_binding->key.state;
+ new_binding->previous_key.keycodes = new_binding->key.keycodes;
+ new_binding->key.keycodes = NULL;
+ }
+
+ new_binding->binding_str = key;
+ new_binding->action = action;
+ new_binding->mateconf_key = mateconf_key;
+
+ if (parse_binding (new_binding)) {
+ if (!tmp_elem)
+ manager->priv->binding_list = g_slist_prepend (manager->priv->binding_list, new_binding);
+ } else {
+ g_free (new_binding->binding_str);
+ g_free (new_binding->action);
+ g_free (new_binding->mateconf_key);
+ g_free (new_binding->previous_key.keycodes);
+ g_free (new_binding);
+
+ if (tmp_elem)
+ manager->priv->binding_list = g_slist_delete_link (manager->priv->binding_list, tmp_elem);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static gboolean
+same_keycode (const Key *key, const Key *other)
+{
+ if (key->keycodes != NULL && other->keycodes != NULL) {
+ guint *c;
+
+ for (c = key->keycodes; *c; ++c) {
+ if (key_uses_keycode (other, *c))
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+static gboolean
+same_key (const Key *key, const Key *other)
+{
+ if (key->state == other->state) {
+ if (key->keycodes != NULL && other->keycodes != NULL) {
+ guint *c1, *c2;
+
+ for (c1 = key->keycodes, c2 = other->keycodes;
+ *c1 || *c2; ++c1, ++c2) {
+ if (*c1 != *c2)
+ return FALSE;
+ }
+ } else if (key->keycodes != NULL || other->keycodes != NULL)
+ return FALSE;
+
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+key_already_used (MsdKeybindingsManager *manager,
+ Binding *binding)
+{
+ GSList *li;
+
+ for (li = manager->priv->binding_list; li != NULL; li = li->next) {
+ Binding *tmp_binding = (Binding*) li->data;
+
+ if (tmp_binding != binding &&
+ same_keycode (&tmp_binding->key, &binding->key) &&
+ tmp_binding->key.state == binding->key.state) {
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+static void
+binding_unregister_keys (MsdKeybindingsManager *manager)
+{
+ GSList *li;
+ gboolean need_flush = FALSE;
+
+ gdk_error_trap_push ();
+
+ for (li = manager->priv->binding_list; li != NULL; li = li->next) {
+ Binding *binding = (Binding *) li->data;
+
+ if (binding->key.keycodes) {
+ need_flush = TRUE;
+ grab_key_unsafe (&binding->key, FALSE, manager->priv->screens);
+ }
+ }
+
+ if (need_flush)
+ gdk_flush ();
+ gdk_error_trap_pop ();
+}
+
+static void
+binding_register_keys (MsdKeybindingsManager *manager)
+{
+ GSList *li;
+ gboolean need_flush = FALSE;
+
+ gdk_error_trap_push ();
+
+ /* Now check for changes and grab new key if not already used */
+ for (li = manager->priv->binding_list; li != NULL; li = li->next) {
+ Binding *binding = (Binding *) li->data;
+
+ if (manager->priv->allowed_keys != NULL &&
+ !g_slist_find_custom (manager->priv->allowed_keys,
+ binding->mateconf_key,
+ (GCompareFunc) g_strcmp0)) {
+ continue;
+ }
+
+ if (!same_key (&binding->previous_key, &binding->key)) {
+ /* Ungrab key if it changed and not clashing with previously set binding */
+ if (!key_already_used (manager, binding)) {
+ gint i;
+
+ need_flush = TRUE;
+ if (binding->previous_key.keycodes) {
+ grab_key_unsafe (&binding->previous_key, FALSE, manager->priv->screens);
+ }
+ grab_key_unsafe (&binding->key, TRUE, manager->priv->screens);
+
+ binding->previous_key.keysym = binding->key.keysym;
+ binding->previous_key.state = binding->key.state;
+ g_free (binding->previous_key.keycodes);
+ for (i = 0; binding->key.keycodes[i]; ++i);
+ binding->previous_key.keycodes = g_new0 (guint, i);
+ for (i = 0; binding->key.keycodes[i]; ++i)
+ binding->previous_key.keycodes[i] = binding->key.keycodes[i];
+ } else
+ g_warning ("Key binding (%s) is already in use", binding->binding_str);
+ }
+ }
+
+ if (need_flush)
+ gdk_flush ();
+ if (gdk_error_trap_pop ())
+ g_warning ("Grab failed for some keys, another application may already have access the them.");
+}
+
+extern char **environ;
+
+static char *
+screen_exec_display_string (GdkScreen *screen)
+{
+ GString *str;
+ const char *old_display;
+ char *p;
+
+ g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
+
+ old_display = gdk_display_get_name (gdk_screen_get_display (screen));
+
+ str = g_string_new ("DISPLAY=");
+ g_string_append (str, old_display);
+
+ p = strrchr (str->str, '.');
+ if (p && p > strchr (str->str, ':')) {
+ g_string_truncate (str, p - str->str);
+ }
+
+ g_string_append_printf (str, ".%d", gdk_screen_get_number (screen));
+
+ return g_string_free (str, FALSE);
+}
+
+/**
+ * get_exec_environment:
+ *
+ * Description: Modifies the current program environment to
+ * ensure that $DISPLAY is set such that a launched application
+ * inheriting this environment would appear on screen.
+ *
+ * Returns: a newly-allocated %NULL-terminated array of strings or
+ * %NULL on error. Use g_strfreev() to free it.
+ *
+ * mainly ripped from egg_screen_exec_display_string in
+ * mate-panel/egg-screen-exec.c
+ **/
+static char **
+get_exec_environment (XEvent *xevent)
+{
+ char **retval = NULL;
+ int i;
+ int display_index = -1;
+ GdkScreen *screen = NULL;
+ GdkWindow *window = gdk_xid_table_lookup (xevent->xkey.root);
+
+ if (window) {
+ screen = gdk_drawable_get_screen (GDK_DRAWABLE (window));
+ }
+
+ g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
+
+ for (i = 0; environ [i]; i++) {
+ if (!strncmp (environ [i], "DISPLAY", 7)) {
+ display_index = i;
+ }
+ }
+
+ if (display_index == -1) {
+ display_index = i++;
+ }
+
+ retval = g_new (char *, i + 1);
+
+ for (i = 0; environ [i]; i++) {
+ if (i == display_index) {
+ retval [i] = screen_exec_display_string (screen);
+ } else {
+ retval [i] = g_strdup (environ [i]);
+ }
+ }
+
+ retval [i] = NULL;
+
+ return retval;
+}
+
+static GdkFilterReturn
+keybindings_filter (GdkXEvent *gdk_xevent,
+ GdkEvent *event,
+ MsdKeybindingsManager *manager)
+{
+ XEvent *xevent = (XEvent *) gdk_xevent;
+ GSList *li;
+
+ if (xevent->type != KeyPress) {
+ return GDK_FILTER_CONTINUE;
+ }
+
+ for (li = manager->priv->binding_list; li != NULL; li = li->next) {
+ Binding *binding = (Binding *) li->data;
+
+ if (match_key (&binding->key, xevent)) {
+ GError *error = NULL;
+ gboolean retval;
+ gchar **argv = NULL;
+ gchar **envp = NULL;
+
+ g_return_val_if_fail (binding->action != NULL, GDK_FILTER_CONTINUE);
+
+ if (!g_shell_parse_argv (binding->action,
+ NULL, &argv,
+ &error)) {
+ return GDK_FILTER_CONTINUE;
+ }
+
+ envp = get_exec_environment (xevent);
+
+ retval = g_spawn_async (NULL,
+ argv,
+ envp,
+ G_SPAWN_SEARCH_PATH,
+ NULL,
+ NULL,
+ NULL,
+ &error);
+ g_strfreev (argv);
+ g_strfreev (envp);
+
+ if (!retval) {
+ GtkWidget *dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_WARNING,
+ GTK_BUTTONS_CLOSE,
+ _("Error while trying to run (%s)\n"\
+ "which is linked to the key (%s)"),
+ binding->action,
+ binding->binding_str);
+ g_signal_connect (dialog,
+ "response",
+ G_CALLBACK (gtk_widget_destroy),
+ NULL);
+ gtk_widget_show (dialog);
+ }
+ return GDK_FILTER_REMOVE;
+ }
+ }
+ return GDK_FILTER_CONTINUE;
+}
+
+static void
+bindings_callback (MateConfClient *client,
+ guint cnxn_id,
+ MateConfEntry *entry,
+ MsdKeybindingsManager *manager)
+{
+ char** key_elems;
+ char* binding_entry;
+
+ if (strcmp (mateconf_entry_get_key (entry), ALLOWED_KEYS_KEY) == 0) {
+ g_slist_foreach (manager->priv->allowed_keys, (GFunc)g_free, NULL);
+ g_slist_free (manager->priv->allowed_keys);
+ manager->priv->allowed_keys = mateconf_client_get_list (client,
+ ALLOWED_KEYS_KEY,
+ MATECONF_VALUE_STRING,
+ NULL);
+ }
+ else {
+ /* ensure we get binding dir not a sub component */
+ key_elems = g_strsplit (mateconf_entry_get_key (entry), "/", 15);
+ binding_entry = g_strdup_printf ("/%s/%s/%s/%s",
+ key_elems[1],
+ key_elems[2],
+ key_elems[3],
+ key_elems[4]);
+ g_strfreev (key_elems);
+
+ bindings_get_entry (manager, client, binding_entry);
+ g_free (binding_entry);
+ }
+
+ binding_register_keys (manager);
+}
+
+static guint
+register_config_callback (MsdKeybindingsManager *manager,
+ MateConfClient *client,
+ const char *path,
+ MateConfClientNotifyFunc func)
+{
+ mateconf_client_add_dir (client, path, MATECONF_CLIENT_PRELOAD_RECURSIVE, NULL);
+ return mateconf_client_notify_add (client, path, func, manager, NULL, NULL);
+}
+
+gboolean
+msd_keybindings_manager_start (MsdKeybindingsManager *manager,
+ GError **error)
+{
+ MateConfClient *client;
+ GSList *list;
+ GSList *li;
+ GdkDisplay *dpy;
+ GdkScreen *screen;
+ int screen_num;
+ int i;
+
+ g_debug ("Starting keybindings manager");
+ mate_settings_profile_start (NULL);
+
+ client = mateconf_client_get_default ();
+
+ manager->priv->notify = register_config_callback (manager,
+ client,
+ MATECONF_BINDING_DIR,
+ (MateConfClientNotifyFunc) bindings_callback);
+
+ manager->priv->allowed_keys = mateconf_client_get_list (client,
+ ALLOWED_KEYS_KEY,
+ MATECONF_VALUE_STRING,
+ NULL);
+
+ dpy = gdk_display_get_default ();
+ screen_num = gdk_display_get_n_screens (dpy);
+
+ for (i = 0; i < screen_num; i++) {
+ screen = gdk_display_get_screen (dpy, i);
+ gdk_window_add_filter (gdk_screen_get_root_window (screen),
+ (GdkFilterFunc) keybindings_filter,
+ manager);
+ }
+
+ list = mateconf_client_all_dirs (client, MATECONF_BINDING_DIR, NULL);
+ manager->priv->screens = get_screens_list ();
+
+ for (li = list; li != NULL; li = li->next) {
+ bindings_get_entry (manager, client, li->data);
+ g_free (li->data);
+ }
+
+ g_slist_free (list);
+ g_object_unref (client);
+
+ binding_register_keys (manager);
+
+ mate_settings_profile_end (NULL);
+
+ return TRUE;
+}
+
+void
+msd_keybindings_manager_stop (MsdKeybindingsManager *manager)
+{
+ MsdKeybindingsManagerPrivate *p = manager->priv;
+ GSList *l;
+
+ g_debug ("Stopping keybindings manager");
+
+ if (p->notify != 0) {
+ MateConfClient *client = mateconf_client_get_default ();
+ mateconf_client_remove_dir (client, MATECONF_BINDING_DIR, NULL);
+ mateconf_client_notify_remove (client, p->notify);
+ g_object_unref (client);
+ p->notify = 0;
+ }
+
+ for (l = p->screens; l; l = l->next) {
+ GdkScreen *screen = l->data;
+ gdk_window_remove_filter (gdk_screen_get_root_window (screen),
+ (GdkFilterFunc) keybindings_filter,
+ manager);
+ }
+
+ binding_unregister_keys (manager);
+
+ g_slist_free (p->screens);
+ p->screens = NULL;
+
+ for (l = p->binding_list; l; l = l->next) {
+ Binding *b = l->data;
+ g_free (b->binding_str);
+ g_free (b->action);
+ g_free (b->mateconf_key);
+ g_free (b->previous_key.keycodes);
+ g_free (b->key.keycodes);
+ g_free (b);
+ }
+ g_slist_free (p->binding_list);
+ p->binding_list = NULL;
+}
+
+static void
+msd_keybindings_manager_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ MsdKeybindingsManager *self;
+
+ self = MSD_KEYBINDINGS_MANAGER (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+msd_keybindings_manager_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ MsdKeybindingsManager *self;
+
+ self = MSD_KEYBINDINGS_MANAGER (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GObject *
+msd_keybindings_manager_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_properties)
+{
+ MsdKeybindingsManager *keybindings_manager;
+ MsdKeybindingsManagerClass *klass;
+
+ klass = MSD_KEYBINDINGS_MANAGER_CLASS (g_type_class_peek (MSD_TYPE_KEYBINDINGS_MANAGER));
+
+ keybindings_manager = MSD_KEYBINDINGS_MANAGER (G_OBJECT_CLASS (msd_keybindings_manager_parent_class)->constructor (type,
+ n_construct_properties,
+ construct_properties));
+
+ return G_OBJECT (keybindings_manager);
+}
+
+static void
+msd_keybindings_manager_dispose (GObject *object)
+{
+ MsdKeybindingsManager *keybindings_manager;
+
+ keybindings_manager = MSD_KEYBINDINGS_MANAGER (object);
+
+ G_OBJECT_CLASS (msd_keybindings_manager_parent_class)->dispose (object);
+}
+
+static void
+msd_keybindings_manager_class_init (MsdKeybindingsManagerClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->get_property = msd_keybindings_manager_get_property;
+ object_class->set_property = msd_keybindings_manager_set_property;
+ object_class->constructor = msd_keybindings_manager_constructor;
+ object_class->dispose = msd_keybindings_manager_dispose;
+ object_class->finalize = msd_keybindings_manager_finalize;
+
+ g_type_class_add_private (klass, sizeof (MsdKeybindingsManagerPrivate));
+}
+
+static void
+msd_keybindings_manager_init (MsdKeybindingsManager *manager)
+{
+ manager->priv = MSD_KEYBINDINGS_MANAGER_GET_PRIVATE (manager);
+
+}
+
+static void
+msd_keybindings_manager_finalize (GObject *object)
+{
+ MsdKeybindingsManager *keybindings_manager;
+
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (MSD_IS_KEYBINDINGS_MANAGER (object));
+
+ keybindings_manager = MSD_KEYBINDINGS_MANAGER (object);
+
+ g_return_if_fail (keybindings_manager->priv != NULL);
+
+ G_OBJECT_CLASS (msd_keybindings_manager_parent_class)->finalize (object);
+}
+
+MsdKeybindingsManager *
+msd_keybindings_manager_new (void)
+{
+ if (manager_object != NULL) {
+ g_object_ref (manager_object);
+ } else {
+ manager_object = g_object_new (MSD_TYPE_KEYBINDINGS_MANAGER, NULL);
+ g_object_add_weak_pointer (manager_object,
+ (gpointer *) &manager_object);
+ }
+
+ return MSD_KEYBINDINGS_MANAGER (manager_object);
+}