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Diffstat (limited to 'plugins/xrdb/msd-xrdb-manager.c')
-rw-r--r--plugins/xrdb/msd-xrdb-manager.c637
1 files changed, 637 insertions, 0 deletions
diff --git a/plugins/xrdb/msd-xrdb-manager.c b/plugins/xrdb/msd-xrdb-manager.c
new file mode 100644
index 0000000..776d1e7
--- /dev/null
+++ b/plugins/xrdb/msd-xrdb-manager.c
@@ -0,0 +1,637 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2003 Ross Burton <[email protected]>
+ * 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 "mate-settings-profile.h"
+#include "msd-xrdb-manager.h"
+
+#define MSD_XRDB_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), MSD_TYPE_XRDB_MANAGER, MsdXrdbManagerPrivate))
+
+#define SYSTEM_AD_DIR DATADIR "/xrdb"
+#define GENERAL_AD SYSTEM_AD_DIR "/General.ad"
+#define USER_AD_DIR ".config/mate/xrdb"
+#define USER_X_RESOURCES ".Xresources"
+#define USER_X_DEFAULTS ".Xdefaults"
+
+#define GTK_THEME_KEY "/desktop/mate/interface/gtk_theme"
+
+struct MsdXrdbManagerPrivate {
+ GtkWidget* widget;
+};
+
+static void msd_xrdb_manager_class_init (MsdXrdbManagerClass *klass);
+static void msd_xrdb_manager_init (MsdXrdbManager *xrdb_manager);
+static void msd_xrdb_manager_finalize (GObject *object);
+
+G_DEFINE_TYPE (MsdXrdbManager, msd_xrdb_manager, G_TYPE_OBJECT)
+
+static gpointer manager_object = NULL;
+static void
+
+append_color_define (GString *string,
+ const char *name,
+ const GdkColor *color)
+{
+ g_return_if_fail (string != NULL);
+ g_return_if_fail (name != NULL);
+ g_return_if_fail (color != NULL);
+
+ g_string_append_printf (string,
+ "#define %s #%2.2hx%2.2hx%2.2hx\n",
+ name,
+ color->red>>8,
+ color->green>>8,
+ color->blue>>8);
+}
+
+static GdkColor*
+color_shade (GdkColor *a,
+ gdouble shade,
+ GdkColor *b)
+{
+ guint16 red, green, blue;
+
+ red = CLAMP ((a->red) * shade, 0, 0xFFFF);
+ green = CLAMP ((a->green) * shade, 0, 0xFFFF);
+ blue = CLAMP ((a->blue) * shade, 0, 0xFFFF);
+
+ b->red = red;
+ b->green = green;
+ b->blue = blue;
+
+ return b;
+}
+
+static void
+append_theme_colors (GtkStyle *style,
+ GString *string)
+{
+ GdkColor tmp;
+
+ g_return_if_fail (style != NULL);
+ g_return_if_fail (string != NULL);
+
+ append_color_define (string,
+ "BACKGROUND",
+ &style->bg[GTK_STATE_NORMAL]);
+ append_color_define (string,
+ "FOREGROUND",
+ &style->fg[GTK_STATE_NORMAL]);
+ append_color_define (string,
+ "SELECT_BACKGROUND",
+ &style->bg[GTK_STATE_SELECTED]);
+ append_color_define (string,
+ "SELECT_FOREGROUND",
+ &style->text[GTK_STATE_SELECTED]);
+ append_color_define (string,
+ "WINDOW_BACKGROUND",
+ &style->base[GTK_STATE_NORMAL]);
+ append_color_define (string,
+ "WINDOW_FOREGROUND",
+ &style->text[GTK_STATE_NORMAL]);
+ append_color_define (string,
+ "INACTIVE_BACKGROUND",
+ &style->bg[GTK_STATE_INSENSITIVE]);
+ append_color_define (string,
+ "INACTIVE_FOREGROUND",
+ &style->text[GTK_STATE_INSENSITIVE]);
+ append_color_define (string,
+ "ACTIVE_BACKGROUND",
+ &style->bg[GTK_STATE_SELECTED]);
+ append_color_define (string,
+ "ACTIVE_FOREGROUND",
+ &style->text[GTK_STATE_SELECTED]);
+
+ append_color_define (string,
+ "HIGHLIGHT",
+ color_shade (&style->bg[GTK_STATE_NORMAL], 1.2, &tmp));
+ append_color_define (string,
+ "LOWLIGHT",
+ color_shade (&style->bg[GTK_STATE_NORMAL], 2.0/3.0, &tmp));
+ return;
+}
+
+/**
+ * Scan a single directory for .ad files, and return them all in a
+ * GSList*
+ */
+static GSList*
+scan_ad_directory (const char *path,
+ GError **error)
+{
+ GSList *list;
+ GDir *dir;
+ const char *entry;
+ GError *local_error;
+
+ list = NULL;
+
+ g_return_val_if_fail (path != NULL, NULL);
+
+ local_error = NULL;
+ dir = g_dir_open (path, 0, &local_error);
+ if (local_error != NULL) {
+ g_propagate_error (error, local_error);
+ return NULL;
+ }
+
+ while ((entry = g_dir_read_name (dir)) != NULL) {
+ if (g_str_has_suffix (entry, ".ad")) {
+ list = g_slist_prepend (list, g_strdup_printf ("%s/%s", path, entry));
+ }
+ }
+
+ g_dir_close (dir);
+
+ /* TODO: sort still? */
+ return g_slist_sort (list, (GCompareFunc)strcmp);
+}
+
+/**
+ * Compare two file names on their base names.
+ */
+static gint
+compare_basenames (gconstpointer a,
+ gconstpointer b)
+{
+ char *base_a;
+ char *base_b;
+ int res;
+
+ base_a = g_path_get_basename (a);
+ base_b = g_path_get_basename (b);
+ res = strcmp (base_a, base_b);
+ g_free (base_a);
+ g_free (base_b);
+
+ return res;
+}
+
+/**
+ * Scan the user and system paths, and return a list of strings in the
+ * right order for processing.
+ */
+static GSList*
+scan_for_files (MsdXrdbManager *manager,
+ GError **error)
+{
+ const char *home_dir;
+ GSList *user_list;
+ GSList *system_list;
+ GSList *list;
+ GSList *p;
+ GError *local_error;
+
+ list = NULL;
+ user_list = NULL;
+ system_list = NULL;
+
+ local_error = NULL;
+ system_list = scan_ad_directory (SYSTEM_AD_DIR, &local_error);
+ if (local_error != NULL) {
+ g_propagate_error (error, local_error);
+ return NULL;
+ }
+
+ home_dir = g_get_home_dir ();
+ if (home_dir != NULL) {
+ char *user_ad;
+
+ user_ad = g_build_filename (home_dir, USER_AD_DIR, NULL);
+
+ if (g_file_test (user_ad, G_FILE_TEST_IS_DIR)) {
+
+ local_error = NULL;
+ user_list = scan_ad_directory (user_ad, &local_error);
+ if (local_error != NULL) {
+ g_propagate_error (error, local_error);
+
+ g_slist_foreach (system_list, (GFunc)g_free, NULL);
+ g_slist_free (system_list);
+ g_free (user_ad);
+ return NULL;
+ }
+ }
+
+ g_free (user_ad);
+
+ } else {
+ g_warning (_("Cannot determine user's home directory"));
+ }
+
+ /* An alternative approach would be to strdup() the strings
+ and free the entire contents of these lists, but that is a
+ little inefficient for my liking - RB */
+ for (p = system_list; p != NULL; p = g_slist_next (p)) {
+ if (strcmp (p->data, GENERAL_AD) == 0) {
+ /* We ignore this, free the data now */
+ g_free (p->data);
+ continue;
+ }
+ if (g_slist_find_custom (user_list, p->data, compare_basenames)) {
+ /* Ditto */
+ g_free (p->data);
+ continue;
+ }
+ list = g_slist_prepend (list, p->data);
+ }
+ g_slist_free (system_list);
+
+ for (p = user_list; p != NULL; p = g_slist_next (p)) {
+ list = g_slist_prepend (list, p->data);
+ }
+ g_slist_free (user_list);
+
+ /* Reverse the order so it is the correct way */
+ list = g_slist_reverse (list);
+
+ /* Add the initial file */
+ list = g_slist_prepend (list, g_strdup (GENERAL_AD));
+
+ return list;
+}
+
+/**
+ * Append the contents of a file onto the end of a GString
+ */
+static void
+append_file (const char *file,
+ GString *string,
+ GError **error)
+{
+ char *contents;
+
+ g_return_if_fail (string != NULL);
+ g_return_if_fail (file != NULL);
+
+ if (g_file_get_contents (file, &contents, NULL, error)) {
+ g_string_append (string, contents);
+ g_free (contents);
+ }
+}
+
+/**
+ * Append an X resources file, such as .Xresources, or .Xdefaults
+ */
+static void
+append_xresource_file (const char *filename,
+ GString *string,
+ GError **error)
+{
+ const char *home_path;
+ char *xresources;
+
+ g_return_if_fail (string != NULL);
+
+ home_path = g_get_home_dir ();
+ if (home_path == NULL) {
+ g_warning (_("Cannot determine user's home directory"));
+ return;
+ }
+
+ xresources = g_build_filename (home_path, filename, NULL);
+ if (g_file_test (xresources, G_FILE_TEST_EXISTS)) {
+ GError *local_error;
+
+ local_error = NULL;
+
+ append_file (xresources, string, &local_error);
+ if (local_error != NULL) {
+ g_warning ("%s", local_error->message);
+ g_propagate_error (error, local_error);
+ }
+ }
+ g_free (xresources);
+}
+
+static gboolean
+write_all (int fd,
+ const char *buf,
+ gsize to_write)
+{
+ while (to_write > 0) {
+ gssize count = write (fd, buf, to_write);
+ if (count < 0) {
+ if (errno != EINTR)
+ return FALSE;
+ } else {
+ to_write -= count;
+ buf += count;
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+child_watch_cb (GPid pid,
+ int status,
+ gpointer user_data)
+{
+ char *command = user_data;
+
+ if (!WIFEXITED (status) || WEXITSTATUS (status)) {
+ g_warning ("Command %s failed", command);
+ }
+}
+
+static void
+spawn_with_input (const char *command,
+ const char *input)
+{
+ char **argv;
+ int child_pid;
+ int inpipe;
+ GError *error;
+ gboolean res;
+
+ argv = NULL;
+ res = g_shell_parse_argv (command, NULL, &argv, NULL);
+ if (! res) {
+ g_warning ("Unable to parse command: %s", command);
+ return;
+ }
+
+ error = NULL;
+ res = g_spawn_async_with_pipes (NULL,
+ argv,
+ NULL,
+ G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD,
+ NULL,
+ NULL,
+ &child_pid,
+ &inpipe,
+ NULL,
+ NULL,
+ &error);
+ g_strfreev (argv);
+
+ if (! res) {
+ g_warning ("Could not execute %s: %s", command, error->message);
+ g_error_free (error);
+
+ return;
+ }
+
+ if (input != NULL) {
+ if (! write_all (inpipe, input, strlen (input))) {
+ g_warning ("Could not write input to %s", command);
+ }
+
+ close (inpipe);
+ }
+
+ g_child_watch_add (child_pid, (GChildWatchFunc) child_watch_cb, (gpointer)command);
+}
+
+static void
+apply_settings (MsdXrdbManager *manager,
+ GtkStyle *style)
+{
+ const char *command;
+ GString *string;
+ GSList *list;
+ GSList *p;
+ GError *error;
+
+ mate_settings_profile_start (NULL);
+
+ command = "xrdb -merge -quiet";
+
+ string = g_string_sized_new (256);
+ append_theme_colors (style, string);
+
+ error = NULL;
+ list = scan_for_files (manager, &error);
+ if (error != NULL) {
+ g_warning ("%s", error->message);
+ g_error_free (error);
+ }
+
+ for (p = list; p != NULL; p = p->next) {
+ error = NULL;
+ append_file (p->data, string, &error);
+ if (error != NULL) {
+ g_warning ("%s", error->message);
+ g_error_free (error);
+ }
+ }
+
+ g_slist_foreach (list, (GFunc)g_free, NULL);
+ g_slist_free (list);
+
+ error = NULL;
+ append_xresource_file (USER_X_RESOURCES, string, &error);
+ if (error != NULL) {
+ g_warning ("%s", error->message);
+ g_error_free (error);
+ }
+
+ error = NULL;
+ append_xresource_file (USER_X_DEFAULTS, string, &error);
+ if (error != NULL) {
+ g_warning ("%s", error->message);
+ g_error_free (error);
+ }
+
+ spawn_with_input (command, string->str);
+ g_string_free (string, TRUE);
+
+ mate_settings_profile_end (NULL);
+
+ return;
+}
+
+static void
+theme_changed (GtkSettings *settings,
+ GParamSpec *pspec,
+ MsdXrdbManager *manager)
+{
+ apply_settings (manager, gtk_widget_get_style (manager->priv->widget));
+}
+
+gboolean
+msd_xrdb_manager_start (MsdXrdbManager *manager,
+ GError **error)
+{
+ mate_settings_profile_start (NULL);
+
+ /* the initialization is done here otherwise
+ mate_settings_xsettings_load would generate
+ false hit as gtk-theme-name is set to Default in
+ mate_settings_xsettings_init */
+ g_signal_connect (gtk_settings_get_default (),
+ "notify::gtk-theme-name",
+ G_CALLBACK (theme_changed),
+ manager);
+
+ manager->priv->widget = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ gtk_widget_ensure_style (manager->priv->widget);
+
+ mate_settings_profile_end (NULL);
+
+ return TRUE;
+}
+
+void
+msd_xrdb_manager_stop (MsdXrdbManager *manager)
+{
+ MsdXrdbManagerPrivate *p = manager->priv;
+
+ g_debug ("Stopping xrdb manager");
+
+ g_signal_handlers_disconnect_by_func (gtk_settings_get_default (),
+ theme_changed,
+ manager);
+
+ if (p->widget != NULL) {
+ gtk_widget_destroy (p->widget);
+ p->widget = NULL;
+ }
+}
+
+static void
+msd_xrdb_manager_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ MsdXrdbManager *self;
+
+ self = MSD_XRDB_MANAGER (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+msd_xrdb_manager_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ MsdXrdbManager *self;
+
+ self = MSD_XRDB_MANAGER (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GObject *
+msd_xrdb_manager_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_properties)
+{
+ MsdXrdbManager *xrdb_manager;
+ MsdXrdbManagerClass *klass;
+
+ klass = MSD_XRDB_MANAGER_CLASS (g_type_class_peek (MSD_TYPE_XRDB_MANAGER));
+
+ xrdb_manager = MSD_XRDB_MANAGER (G_OBJECT_CLASS (msd_xrdb_manager_parent_class)->constructor (type,
+ n_construct_properties,
+ construct_properties));
+
+ return G_OBJECT (xrdb_manager);
+}
+
+static void
+msd_xrdb_manager_dispose (GObject *object)
+{
+ MsdXrdbManager *xrdb_manager;
+
+ xrdb_manager = MSD_XRDB_MANAGER (object);
+
+ G_OBJECT_CLASS (msd_xrdb_manager_parent_class)->dispose (object);
+}
+
+static void
+msd_xrdb_manager_class_init (MsdXrdbManagerClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->get_property = msd_xrdb_manager_get_property;
+ object_class->set_property = msd_xrdb_manager_set_property;
+ object_class->constructor = msd_xrdb_manager_constructor;
+ object_class->dispose = msd_xrdb_manager_dispose;
+ object_class->finalize = msd_xrdb_manager_finalize;
+
+ g_type_class_add_private (klass, sizeof (MsdXrdbManagerPrivate));
+}
+
+static void
+msd_xrdb_manager_init (MsdXrdbManager *manager)
+{
+ manager->priv = MSD_XRDB_MANAGER_GET_PRIVATE (manager);
+
+}
+
+static void
+msd_xrdb_manager_finalize (GObject *object)
+{
+ MsdXrdbManager *xrdb_manager;
+
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (MSD_IS_XRDB_MANAGER (object));
+
+ xrdb_manager = MSD_XRDB_MANAGER (object);
+
+ g_return_if_fail (xrdb_manager->priv != NULL);
+
+ G_OBJECT_CLASS (msd_xrdb_manager_parent_class)->finalize (object);
+}
+
+MsdXrdbManager *
+msd_xrdb_manager_new (void)
+{
+ if (manager_object != NULL) {
+ g_object_ref (manager_object);
+ } else {
+ manager_object = g_object_new (MSD_TYPE_XRDB_MANAGER, NULL);
+ g_object_add_weak_pointer (manager_object,
+ (gpointer *) &manager_object);
+ }
+
+ return MSD_XRDB_MANAGER (manager_object);
+}
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