moved from Mate-Extra

author: Stefano Karapetsas <[email protected]> 2011-12-11 12:55:19 +0100
committer: Stefano Karapetsas <[email protected]> 2011-12-11 12:55:19 +0100
commit: 51175189c6d7313a3b84019e39496f957c4e6164 (patch)
tree: e4c2c130fa3140bca28685ef900f04a012e53dcd /applets/brightness/brightness-applet.c
download: mate-power-manager-51175189c6d7313a3b84019e39496f957c4e6164.tar.bz2
mate-power-manager-51175189c6d7313a3b84019e39496f957c4e6164.tar.xz
1 files changed, 1038 insertions, 0 deletions
diff --git a/applets/brightness/brightness-applet.c b/applets/brightness/brightness-applet.c
new file mode 100644
index 0000000..125af49
--- /dev/null
+++ b/applets/brightness/brightness-applet.c
@@ -0,0 +1,1038 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * MATE Power Manager Brightness Applet
+ * Copyright (C) 2006 Benjamin Canou <[email protected]>
+ * Copyright (C) 2007 Richard Hughes <[email protected]>
+ *
+ * Licensed under the GNU General Public License Version 2
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* FIXME: gdk_gc_* needs porting to cairo */
+#undef GDK_DISABLE_DEPRECATED
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <mate-panel-applet.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+#include <glib-object.h>
+#include <dbus/dbus-glib.h>
+
+#include "egg-debug.h"
+#include "egg-dbus-monitor.h"
+#include "gpm-common.h"
+
+#define GPM_TYPE_BRIGHTNESS_APPLET (gpm_brightness_applet_get_type ())
+#define GPM_BRIGHTNESS_APPLET(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GPM_TYPE_BRIGHTNESS_APPLET, GpmBrightnessApplet))
+#define GPM_BRIGHTNESS_APPLET_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GPM_TYPE_BRIGHTNESS_APPLET, GpmBrightnessAppletClass))
+#define GPM_IS_BRIGHTNESS_APPLET(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GPM_TYPE_BRIGHTNESS_APPLET))
+#define GPM_IS_BRIGHTNESS_APPLET_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GPM_TYPE_BRIGHTNESS_APPLET))
+#define GPM_BRIGHTNESS_APPLET_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GPM_TYPE_BRIGHTNESS_APPLET, GpmBrightnessAppletClass))
+
+typedef struct{
+ MatePanelApplet parent;
+ /* applet state */
+ gboolean call_worked; /* g-p-m refusing action */
+ gboolean popped; /* the popup is shown */
+ /* the popup and its widgets */
+ GtkWidget *popup, *slider, *btn_plus, *btn_minus;
+ /* the icon and a cache for size*/
+ GdkPixbuf *icon;
+ gint icon_width, icon_height;
+ /* connection to g-p-m */
+ DBusGProxy *proxy;
+ DBusGConnection *connection;
+ EggDbusMonitor *monitor;
+ guint level;
+ /* a cache for panel size */
+ gint size;
+} GpmBrightnessApplet;
+
+typedef struct{
+ MatePanelAppletClass parent_class;
+} GpmBrightnessAppletClass;
+
+GType gpm_brightness_applet_get_type (void);
+
+
+static void gpm_brightness_applet_class_init (GpmBrightnessAppletClass *klass);
+static void gpm_brightness_applet_init (GpmBrightnessApplet *applet);
+
+G_DEFINE_TYPE (GpmBrightnessApplet, gpm_brightness_applet, PANEL_TYPE_APPLET)
+
+static void gpm_applet_get_icon (GpmBrightnessApplet *applet);
+static void gpm_applet_check_size (GpmBrightnessApplet *applet);
+static gboolean gpm_applet_draw_cb (GpmBrightnessApplet *applet);
+static void gpm_applet_change_background_cb (GpmBrightnessApplet *applet,
+ MatePanelAppletBackgroundType arg1,
+ GdkColor *arg2, GdkPixmap *arg3, gpointer data);
+static void gpm_applet_theme_change_cb (GtkIconTheme *icon_theme, gpointer data);
+static void gpm_applet_stop_scroll_events_cb (GtkWidget *widget, GdkEvent *event);
+static gboolean gpm_applet_destroy_popup_cb (GpmBrightnessApplet *applet);
+static void gpm_applet_update_tooltip (GpmBrightnessApplet *applet);
+static void gpm_applet_update_popup_level (GpmBrightnessApplet *applet);
+static gboolean gpm_applet_plus_cb (GtkWidget *w, GpmBrightnessApplet *applet);
+static gboolean gpm_applet_minus_cb (GtkWidget *w, GpmBrightnessApplet *applet);
+static gboolean gpm_applet_key_press_cb (GpmBrightnessApplet *applet, GdkEventKey *event);
+static gboolean gpm_applet_scroll_cb (GpmBrightnessApplet *applet, GdkEventScroll *event);
+static gboolean gpm_applet_slide_cb (GtkWidget *w, GpmBrightnessApplet *applet);
+static void gpm_applet_create_popup (GpmBrightnessApplet *applet);
+static gboolean gpm_applet_popup_cb (GpmBrightnessApplet *applet, GdkEventButton *event);
+static void gpm_applet_dialog_about_cb (MateComponentUIComponent *uic, gpointer data, const gchar *verbname);
+static gboolean gpm_applet_matecomponent_cb (MatePanelApplet *_applet, const gchar *iid, gpointer data);
+static void gpm_applet_destroy_cb (GtkObject *object);
+
+#define GPM_BRIGHTNESS_APPLET_OAFID "OAFIID:MATE_BrightnessApplet"
+#define GPM_BRIGHTNESS_APPLET_FACTORY_OAFID "OAFIID:MATE_BrightnessApplet_Factory"
+#define GPM_BRIGHTNESS_APPLET_ICON "mate-brightness-applet"
+#define GPM_BRIGHTNESS_APPLET_ICON_DISABLED "gpm-brightness-lcd-disabled"
+#define GPM_BRIGHTNESS_APPLET_ICON_INVALID "gpm-brightness-lcd-invalid"
+#define GPM_BRIGHTNESS_APPLET_NAME _("Power Manager Brightness Applet")
+#define GPM_BRIGHTNESS_APPLET_DESC _("Adjusts laptop panel brightness.")
+#define MATE_PANEL_APPLET_VERTICAL(p) \
+ (((p) == MATE_PANEL_APPLET_ORIENT_LEFT) || ((p) == MATE_PANEL_APPLET_ORIENT_RIGHT))
+
+/**
+ * gpm_applet_get_brightness:
+ * Return value: Success value, or zero for failure
+ **/
+static gboolean
+gpm_applet_get_brightness (GpmBrightnessApplet *applet)
+{
+ GError *error = NULL;
+ gboolean ret;
+ guint policy_brightness;
+
+ if (applet->proxy == NULL) {
+ egg_warning ("not connected\n");
+ return FALSE;
+ }
+
+ ret = dbus_g_proxy_call (applet->proxy, "GetBrightness", &error,
+ G_TYPE_INVALID,
+ G_TYPE_UINT, &policy_brightness,
+ G_TYPE_INVALID);
+ if (error) {
+ egg_debug ("ERROR: %s\n", error->message);
+ g_error_free (error);
+ }
+ if (ret) {
+ applet->level = policy_brightness;
+ } else {
+ /* abort as the DBUS method failed */
+ egg_warning ("GetBrightness failed!\n");
+ }
+
+ return ret;
+}
+
+/**
+ * gpm_applet_set_brightness:
+ * Return value: Success value, or zero for failure
+ **/
+static gboolean
+gpm_applet_set_brightness (GpmBrightnessApplet *applet)
+{
+ GError *error = NULL;
+ gboolean ret;
+
+ if (applet->proxy == NULL) {
+ egg_warning ("not connected");
+ return FALSE;
+ }
+
+ ret = dbus_g_proxy_call (applet->proxy, "SetBrightness", &error,
+ G_TYPE_UINT, applet->level,
+ G_TYPE_INVALID,
+ G_TYPE_INVALID);
+ if (error) {
+ egg_debug ("ERROR: %s", error->message);
+ g_error_free (error);
+ }
+ if (!ret) {
+ /* abort as the DBUS method failed */
+ egg_warning ("SetBrightness failed!");
+ }
+
+ return ret;
+}
+
+/**
+ * gpm_applet_get_icon:
+ * @applet: Brightness applet instance
+ *
+ * retrieve an icon from stock with a size adapted to panel
+ **/
+static void
+gpm_applet_get_icon (GpmBrightnessApplet *applet)
+{
+ const gchar *icon;
+
+ /* free */
+ if (applet->icon != NULL) {
+ g_object_unref (applet->icon);
+ applet->icon = NULL;
+ }
+
+ if (applet->size <= 2) {
+ return;
+ }
+
+ /* get icon */
+ if (applet->proxy == NULL) {
+ icon = GPM_BRIGHTNESS_APPLET_ICON_INVALID;
+ } else if (applet->call_worked == FALSE) {
+ icon = GPM_BRIGHTNESS_APPLET_ICON_DISABLED;
+ } else {
+ icon = GPM_BRIGHTNESS_APPLET_ICON;
+ }
+
+ applet->icon = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
+ icon, applet->size - 2, 0, NULL);
+
+ if (applet->icon == NULL) {
+ egg_warning ("Cannot find %s!\n", icon);
+ } else {
+ egg_debug ("got icon %s!\n", icon);
+ /* update size cache */
+ applet->icon_height = gdk_pixbuf_get_height (applet->icon);
+ applet->icon_width = gdk_pixbuf_get_width (applet->icon);
+ }
+}
+
+/**
+ * gpm_applet_check_size:
+ * @applet: Brightness applet instance
+ *
+ * check if panel size has changed and applet adapt size
+ **/
+static void
+gpm_applet_check_size (GpmBrightnessApplet *applet)
+{
+ GtkAllocation allocation;
+
+ /* we don't use the size function here, but the yet allocated size because the
+ size value is false (kind of rounded) */
+ gtk_widget_get_allocation (GTK_WIDGET (applet), &allocation);
+ if (MATE_PANEL_APPLET_VERTICAL(mate_panel_applet_get_orient (MATE_PANEL_APPLET (applet)))) {
+ if (applet->size != allocation.width) {
+ applet->size = allocation.width;
+ gpm_applet_get_icon (applet);
+ gtk_widget_set_size_request (GTK_WIDGET(applet), applet->size, applet->icon_height + 2);
+ }
+ } else {
+ if (applet->size != allocation.height) {
+ applet->size = allocation.height;
+ gpm_applet_get_icon (applet);
+ gtk_widget_set_size_request (GTK_WIDGET(applet), applet->icon_width + 2, applet->size);
+ }
+ }
+}
+
+/**
+ * gpm_applet_draw_cb:
+ * @applet: Brightness applet instance
+ *
+ * draws applet content (background + icon)
+ **/
+static gboolean
+gpm_applet_draw_cb (GpmBrightnessApplet *applet)
+{
+ gint w, h, bg_type;
+ GdkColor color;
+ GdkGC *gc;
+ GdkPixmap *background;
+ GtkAllocation allocation;
+
+ if (gtk_widget_get_window (GTK_WIDGET(applet)) == NULL) {
+ return FALSE;
+ }
+
+ /* retrieve applet size */
+ gpm_applet_get_icon (applet);
+ gpm_applet_check_size (applet);
+ if (applet->size <= 2) {
+ return FALSE;
+ }
+
+ /* if no icon, then don't try to display */
+ if (applet->icon == NULL) {
+ return FALSE;
+ }
+
+ gtk_widget_get_allocation (GTK_WIDGET (applet), &allocation);
+ w = allocation.width;
+ h = allocation.height;
+
+ gc = gdk_gc_new (gtk_widget_get_window (GTK_WIDGET(applet)));
+
+ /* draw pixmap background */
+ bg_type = mate_panel_applet_get_background (MATE_PANEL_APPLET (applet), &color, &background);
+ if (bg_type == PANEL_PIXMAP_BACKGROUND && !applet->popped) {
+ /* fill with given background pixmap */
+ gdk_draw_drawable (gtk_widget_get_window (GTK_WIDGET(applet)), gc, background, 0, 0, 0, 0, w, h);
+ }
+ 
+ /* draw color background */
+ if (bg_type == PANEL_COLOR_BACKGROUND && !applet->popped) {
+ gdk_gc_set_rgb_fg_color (gc,&color);
+ gdk_gc_set_fill (gc,GDK_SOLID);
+ gdk_draw_rectangle (gtk_widget_get_window (GTK_WIDGET(applet)), gc, TRUE, 0, 0, w, h);
+ }
+
+ /* fill with selected color if popped */
+ if (applet->popped) {
+ color = gtk_rc_get_style (GTK_WIDGET(applet))->bg[GTK_STATE_SELECTED];
+ gdk_gc_set_rgb_fg_color (gc,&color);
+ gdk_gc_set_fill (gc,GDK_SOLID);
+ gdk_draw_rectangle (gtk_widget_get_window (GTK_WIDGET(applet)), gc, TRUE, 0, 0, w, h);
+ }
+
+ /* draw icon at center */
+ gdk_draw_pixbuf (gtk_widget_get_window (GTK_WIDGET(applet)), gc, applet->icon,
+ 0, 0, (w - applet->icon_width)/2, (h - applet->icon_height)/2,
+ applet->icon_width, applet->icon_height,
+ GDK_RGB_DITHER_NONE, 0, 0);
+
+ g_object_unref (gc);
+
+ return TRUE;
+}
+
+/**
+ * gpm_applet_change_background_cb:
+ *
+ * Enqueues an expose event (don't know why it's not the default behaviour)
+ **/
+static void
+gpm_applet_change_background_cb (GpmBrightnessApplet *applet,
+ MatePanelAppletBackgroundType arg1,
+ GdkColor *arg2, GdkPixmap *arg3, gpointer data)
+{
+ gtk_widget_queue_draw (GTK_WIDGET (applet));
+}
+
+/**
+ * gpm_applet_destroy_popup_cb:
+ * @applet: Brightness applet instance
+ *
+ * destroys the popup (called if orientation has changed)
+ **/
+static gboolean
+gpm_applet_destroy_popup_cb (GpmBrightnessApplet *applet)
+{
+ if (applet->popup != NULL) {
+ gtk_widget_set_parent (applet->popup, NULL);
+ gtk_widget_destroy (applet->popup);
+ applet->popup = NULL;
+ }
+ return TRUE;
+}
+
+/**
+ * gpm_applet_update_tooltip:
+ * @applet: Brightness applet instance
+ *
+ * sets tooltip's content (percentage or disabled)
+ **/
+static void
+gpm_applet_update_tooltip (GpmBrightnessApplet *applet)
+{
+ gchar *buf = NULL;
+ if (applet->popped == FALSE) {
+ if (applet->proxy == NULL) {
+ buf = g_strdup (_("Cannot connect to mate-power-manager"));
+ } else if (applet->call_worked == FALSE) {
+ buf = g_strdup (_("Cannot get laptop panel brightness"));
+ } else {
+ buf = g_strdup_printf (_("LCD brightness : %d%%"), applet->level);
+ }
+ gtk_widget_set_tooltip_text (GTK_WIDGET(applet), buf);
+ } else {
+ gtk_widget_set_tooltip_text (GTK_WIDGET(applet), NULL);
+ }
+ g_free (buf);
+}
+
+/**
+ * gpm_applet_update_popup_level:
+ * @applet: Brightness applet instance
+ * @get_hw: set UI value from HW value
+ * @set_hw: set HW value from UI value
+ *
+ * updates popup and hardware level of brightness
+ * FALSE FAlSE -> set UI from cached value
+ * TRUE FAlSE -> set UI from HW value
+ * TRUE FALSE -> set HW from UI value, then set UI from HW value
+ * FALSE TRUE -> set HW from UI value
+ **/
+static void
+gpm_applet_update_popup_level (GpmBrightnessApplet *applet)
+{
+ if (applet->popup != NULL) {
+ gtk_widget_set_sensitive (applet->btn_plus, applet->level < 100);
+ gtk_widget_set_sensitive (applet->btn_minus, applet->level > 0);
+ gtk_range_set_value (GTK_RANGE(applet->slider), (guint) applet->level);
+ }
+ gpm_applet_update_tooltip (applet);
+}
+
+/**
+ * gpm_applet_plus_cb:
+ * @widget: The sending widget (plus button)
+ * @applet: Brightness applet instance
+ *
+ * callback for the plus button
+ **/
+static gboolean
+gpm_applet_plus_cb (GtkWidget *w, GpmBrightnessApplet *applet)
+{
+ if (applet->level < 100) {
+ applet->level++;
+ }
+ applet->call_worked = gpm_applet_set_brightness (applet);
+ gpm_applet_update_popup_level (applet);
+ return TRUE;
+}
+
+/**
+ * gpm_applet_minus_cb:
+ * @widget: The sending widget (minus button)
+ * @applet: Brightness applet instance
+ *
+ * callback for the minus button
+ **/
+static gboolean
+gpm_applet_minus_cb (GtkWidget *w, GpmBrightnessApplet *applet)
+{
+ if (applet->level > 0) {
+ applet->level--;
+ }
+ applet->call_worked = gpm_applet_set_brightness (applet);
+ gpm_applet_update_popup_level (applet);
+ return TRUE;
+}
+
+/**
+ * gpm_applet_slide_cb:
+ * @widget: The sending widget (slider)
+ * @applet: Brightness applet instance
+ *
+ * callback for the slider
+ **/
+static gboolean
+gpm_applet_slide_cb (GtkWidget *w, GpmBrightnessApplet *applet)
+{
+ applet->level = gtk_range_get_value (GTK_RANGE(applet->slider));
+ applet->call_worked = gpm_applet_set_brightness (applet);
+ gpm_applet_update_popup_level (applet);
+ return TRUE;
+}
+
+/**
+ * gpm_applet_slide_cb:
+ * @applet: Brightness applet instance
+ * @event: The key press event
+ *
+ * callback handling keyboard
+ * mainly escape to unpop and arrows to change brightness
+ **/
+static gboolean
+gpm_applet_key_press_cb (GpmBrightnessApplet *applet, GdkEventKey *event)
+{
+ int i;
+ 
+ switch (event->keyval) {
+ case GDK_KP_Enter:
+ case GDK_ISO_Enter:
+ case GDK_3270_Enter:
+ case GDK_Return:
+ case GDK_space:
+ case GDK_KP_Space:
+ case GDK_Escape:
+ /* if yet popped, release focus and hide then redraw applet unselected */
+ if (applet->popped) {
+ gdk_keyboard_ungrab (GDK_CURRENT_TIME);
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ gtk_grab_remove (GTK_WIDGET(applet));
+ gtk_widget_set_state (GTK_WIDGET(applet), GTK_STATE_NORMAL);
+ gtk_widget_hide (applet->popup);
+ applet->popped = FALSE;
+ gpm_applet_draw_cb (applet);
+ gpm_applet_update_tooltip (applet);
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+ break;
+ case GDK_Page_Up:
+ for (i = 0;i < 10;i++) {
+ gpm_applet_plus_cb (NULL, applet);
+ }
+ return TRUE;
+ break;
+ case GDK_Left:
+ case GDK_Up:
+ gpm_applet_plus_cb (NULL, applet);
+ return TRUE;
+ break;
+ case GDK_Page_Down:
+ for (i = 0;i < 10;i++) {
+ gpm_applet_minus_cb (NULL, applet);
+ }
+ return TRUE;
+ break;
+ case GDK_Right:
+ case GDK_Down:
+ gpm_applet_minus_cb (NULL, applet);
+ return TRUE;
+ break;
+ default:
+ return FALSE;
+ break;
+ }
+
+ return FALSE;
+}
+
+/**
+ * gpm_applet_scroll_cb:
+ * @applet: Brightness applet instance
+ * @event: The scroll event
+ *
+ * callback handling mouse scrolls, either when the applet
+ * is not popped and the mouse is over the applet, or when
+ * the applet is popped and no matter where the mouse is.
+ **/
+static gboolean
+gpm_applet_scroll_cb (GpmBrightnessApplet *applet, GdkEventScroll *event)
+{
+ int i;
+
+ if (event->type == GDK_SCROLL) {
+ if (event->direction == GDK_SCROLL_UP) {
+ for (i = 0;i < 5;i++) {
+ gpm_applet_plus_cb (NULL, applet);
+ }
+ 
+ } else {
+ for (i = 0;i < 5;i++) {
+ gpm_applet_minus_cb (NULL, applet);
+ }
+ }
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/**
+ * gpm_applet_create_popup:
+ * @applet: Brightness applet instance
+ *
+ * cretes a new popup according to orientation of panel
+ **/
+static void
+gpm_applet_create_popup (GpmBrightnessApplet *applet)
+{
+ static GtkWidget *box, *frame;
+ gint orientation = mate_panel_applet_get_orient (MATE_PANEL_APPLET (MATE_PANEL_APPLET (applet)));
+
+ gpm_applet_destroy_popup_cb (applet);
+
+ /* slider */
+ if (MATE_PANEL_APPLET_VERTICAL(orientation)) {
+ applet->slider = gtk_hscale_new_with_range (0, 100, 1);
+ gtk_widget_set_size_request (applet->slider, 100, -1);
+ } else {
+ applet->slider = gtk_vscale_new_with_range (0, 100, 1);
+ gtk_widget_set_size_request (applet->slider, -1, 100);
+ }
+ gtk_range_set_inverted (GTK_RANGE(applet->slider), TRUE);
+ gtk_scale_set_draw_value (GTK_SCALE(applet->slider), FALSE);
+ gtk_range_set_value (GTK_RANGE(applet->slider), applet->level);
+ g_signal_connect (G_OBJECT(applet->slider), "value-changed", G_CALLBACK(gpm_applet_slide_cb), applet);
+
+ /* minus button */
+ applet->btn_minus = gtk_button_new_with_label ("\342\210\222"); /* U+2212 MINUS SIGN */
+ gtk_button_set_relief (GTK_BUTTON(applet->btn_minus), GTK_RELIEF_NONE);
+ g_signal_connect (G_OBJECT(applet->btn_minus), "pressed", G_CALLBACK(gpm_applet_minus_cb), applet);
+
+ /* plus button */
+ applet->btn_plus = gtk_button_new_with_label ("+");
+ gtk_button_set_relief (GTK_BUTTON(applet->btn_plus), GTK_RELIEF_NONE);
+ g_signal_connect (G_OBJECT(applet->btn_plus), "pressed", G_CALLBACK(gpm_applet_plus_cb), applet);
+
+ /* box */
+ if (MATE_PANEL_APPLET_VERTICAL(orientation)) {
+ box = gtk_hbox_new (FALSE, 1);
+ } else {
+ box = gtk_vbox_new (FALSE, 1);
+ }
+ gtk_box_pack_start (GTK_BOX(box), applet->btn_plus, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX(box), applet->slider, TRUE, TRUE, 0);
+ gtk_box_pack_start (GTK_BOX(box), applet->btn_minus, FALSE, FALSE, 0);
+
+ /* frame */
+ frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME(frame), GTK_SHADOW_OUT);
+ gtk_container_add (GTK_CONTAINER(frame), box);
+
+ /* window */
+ applet->popup = gtk_window_new (GTK_WINDOW_POPUP);
+ gtk_window_set_type_hint (GTK_WINDOW(applet->popup), GDK_WINDOW_TYPE_HINT_UTILITY);
+ gtk_widget_set_parent (applet->popup, GTK_WIDGET(applet));
+ gtk_container_add (GTK_CONTAINER(applet->popup), frame);
+}
+
+/**
+ * gpm_applet_popup_cb:
+ * @applet: Brightness applet instance
+ *
+ * pops and unpops
+ **/
+static gboolean
+gpm_applet_popup_cb (GpmBrightnessApplet *applet, GdkEventButton *event)
+{
+ GtkAllocation allocation, popup_allocation;
+ gint orientation, x, y;
+
+ /* react only to left mouse button */
+ if (event->button != 1) {
+ return FALSE;
+ }
+
+ /* if yet popped, release focus and hide then redraw applet unselected */
+ if (applet->popped) {
+ gdk_keyboard_ungrab (GDK_CURRENT_TIME);
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
+ gtk_grab_remove (GTK_WIDGET(applet));
+ gtk_widget_set_state (GTK_WIDGET(applet), GTK_STATE_NORMAL);
+ gtk_widget_hide (applet->popup);
+ applet->popped = FALSE;
+ gpm_applet_draw_cb (applet);
+ gpm_applet_update_tooltip (applet);
+ return TRUE;
+ }
+
+ /* update UI for current brightness */
+ gpm_applet_update_popup_level (applet);
+
+ /* otherwise pop */
+ applet->popped = TRUE;
+ gpm_applet_draw_cb (applet);
+
+ /* create a new popup (initial or if panel parameters changed) */
+ if (applet->popup == NULL) {
+ gpm_applet_create_popup (applet);
+ }
+
+ /* update UI for current brightness */
+ gpm_applet_update_popup_level (applet);
+
+ gtk_widget_show_all (applet->popup);
+
+ /* retrieve geometry parameters and move window appropriately */
+ orientation = mate_panel_applet_get_orient (MATE_PANEL_APPLET (MATE_PANEL_APPLET (applet)));
+ gdk_window_get_origin (gtk_widget_get_window (GTK_WIDGET(applet)), &x, &y);
+
+ gtk_widget_get_allocation (GTK_WIDGET (applet), &allocation);
+ gtk_widget_get_allocation (GTK_WIDGET (applet->popup), &popup_allocation);
+ switch (orientation) {
+ case MATE_PANEL_APPLET_ORIENT_DOWN:
+ x += allocation.x + allocation.width/2;
+ y += allocation.y + allocation.height;
+ x -= popup_allocation.width/2;
+ break;
+ case MATE_PANEL_APPLET_ORIENT_UP:
+ x += allocation.x + allocation.width/2;
+ y += allocation.y;
+ x -= popup_allocation.width/2;
+ y -= popup_allocation.height;
+ break;
+ case MATE_PANEL_APPLET_ORIENT_RIGHT:
+ y += allocation.y + allocation.height/2;
+ x += allocation.x + allocation.width;
+ y -= popup_allocation.height/2;
+ break;
+ case MATE_PANEL_APPLET_ORIENT_LEFT:
+ y += allocation.y + allocation.height/2;
+ x += allocation.x;
+ x -= popup_allocation.width;
+ y -= popup_allocation.height/2;
+ break;
+ default:
+ g_assert_not_reached ();
+ }
+
+ gtk_window_move (GTK_WINDOW (applet->popup), x, y);
+
+ /* grab input */
+ gtk_widget_grab_focus (GTK_WIDGET(applet));
+ gtk_grab_add (GTK_WIDGET(applet));
+ gdk_pointer_grab (gtk_widget_get_window (GTK_WIDGET(applet)), TRUE,
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK |
+ GDK_POINTER_MOTION_MASK,
+ NULL, NULL, GDK_CURRENT_TIME);
+ gdk_keyboard_grab (gtk_widget_get_window (GTK_WIDGET(applet)),
+ TRUE, GDK_CURRENT_TIME);
+ gtk_widget_set_state (GTK_WIDGET(applet), GTK_STATE_SELECTED);
+
+ return TRUE;
+}
+
+/**
+ * gpm_applet_theme_change_cb:
+ *
+ * Updtes icon when theme changes
+ **/
+static void
+gpm_applet_theme_change_cb (GtkIconTheme *icon_theme, gpointer data)
+{
+ GpmBrightnessApplet *applet = GPM_BRIGHTNESS_APPLET (data);
+ gpm_applet_get_icon (applet);
+}
+
+/**
+ * gpm_applet_stop_scroll_events_cb:
+ *
+ * Prevents scroll events from reaching the tooltip
+ **/
+static void
+gpm_applet_stop_scroll_events_cb (GtkWidget *widget, GdkEvent *event)
+{
+ if (event->type == GDK_SCROLL)
+ g_signal_stop_emission_by_name (widget, "event-after");
+}
+
+/**
+ * gpm_applet_dialog_about_cb:
+ *
+ * displays about dialog
+ **/
+static void
+gpm_applet_dialog_about_cb (MateComponentUIComponent *uic, gpointer data, const gchar *verbname)
+{
+ GtkAboutDialog *about;
+
+ GdkPixbuf *logo =
+ gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
+ GPM_BRIGHTNESS_APPLET_ICON,
+ 128, 0, NULL);
+
+ static const gchar *authors[] = {
+ "Benjamin Canou <[email protected]>",
+ "Richard Hughes <[email protected]>",
+ NULL
+ };
+ const char *documenters [] = {
+ NULL
+ };
+ const char *license[] = {
+ N_("Licensed under the GNU General Public License Version 2"),
+ N_("Power Manager is free software; you can redistribute it and/or\n"
+ "modify it under the terms of the GNU General Public License\n"
+ "as published by the Free Software Foundation; either version 2\n"
+ "of the License, or (at your option) any later version."),
+ N_("Power Manager is distributed in the hope that it will be useful,\n"
+ "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+ "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
+ "GNU General Public License for more details."),
+ N_("You should have received a copy of the GNU General Public License\n"
+ "along with this program; if not, write to the Free Software\n"
+ "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA\n"
+ "02110-1301, USA.")
+ };
+ const char *translator_credits = NULL;
+ char *license_trans;
+
+ license_trans = g_strconcat (_(license[0]), "\n\n", _(license[1]), "\n\n",
+ _(license[2]), "\n\n", _(license[3]), "\n", NULL);
+
+ about = (GtkAboutDialog*) gtk_about_dialog_new ();
+ gtk_about_dialog_set_program_name (about, GPM_BRIGHTNESS_APPLET_NAME);
+ gtk_about_dialog_set_version (about, VERSION);
+ gtk_about_dialog_set_copyright (about, _("Copyright \xc2\xa9 2006 Benjamin Canou"));
+ gtk_about_dialog_set_comments (about, GPM_BRIGHTNESS_APPLET_DESC);
+ gtk_about_dialog_set_authors (about, authors);
+ gtk_about_dialog_set_documenters (about, documenters);
+ gtk_about_dialog_set_translator_credits (about, translator_credits);
+ gtk_about_dialog_set_logo (about, logo);
+ gtk_about_dialog_set_license (about, license_trans);
+ gtk_about_dialog_set_website (about, GPM_HOMEPAGE_URL);
+
+ g_signal_connect (G_OBJECT(about), "response",
+ G_CALLBACK(gtk_widget_destroy), NULL);
+
+ gtk_widget_show (GTK_WIDGET(about));
+
+ g_free (license_trans);
+ g_object_unref (logo);
+}
+
+/**
+ * gpm_applet_help_cb:
+ *
+ * open gpm help
+ **/
+static void
+gpm_applet_help_cb (MateComponentUIComponent *uic, gpointer data, const gchar *verbname)
+{
+ gpm_help_display ("applets-brightness");
+}
+
+/**
+ * gpm_applet_destroy_cb:
+ * @object: Class instance to destroy
+ **/
+static void
+gpm_applet_destroy_cb (GtkObject *object)
+{
+ GpmBrightnessApplet *applet = GPM_BRIGHTNESS_APPLET(object);
+
+ if (applet->monitor != NULL) {
+ g_object_unref (applet->monitor);
+ }
+ if (applet->icon != NULL) {
+ g_object_unref (applet->icon);
+ }
+}
+
+/**
+ * gpm_brightness_applet_class_init:
+ * @klass: Class instance
+ **/
+static void
+gpm_brightness_applet_class_init (GpmBrightnessAppletClass *class)
+{
+ /* nothing to do here */
+}
+
+static void
+brightness_changed_cb (DBusGProxy *proxy,
+ guint brightness,
+ GpmBrightnessApplet *applet)
+{
+ egg_debug ("BrightnessChanged detected: %i\n", brightness);
+ applet->level = brightness;
+}
+
+/**
+ * gpm_brightness_applet_dbus_connect:
+ **/
+gboolean
+gpm_brightness_applet_dbus_connect (GpmBrightnessApplet *applet)
+{
+ GError *error = NULL;
+
+ if (applet->connection == NULL) {
+ egg_debug ("get connection\n");
+ g_clear_error (&error);
+ applet->connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
+ if (error != NULL) {
+ egg_warning ("Could not connect to DBUS daemon: %s", error->message);
+ g_error_free (error);
+ applet->connection = NULL;
+ return FALSE;
+ }
+ }
+ if (applet->proxy == NULL) {
+ egg_debug ("get proxy\n");
+ g_clear_error (&error);
+ applet->proxy = dbus_g_proxy_new_for_name_owner (applet->connection,
+ GPM_DBUS_SERVICE,
+ GPM_DBUS_PATH_BACKLIGHT,
+ GPM_DBUS_INTERFACE_BACKLIGHT,
+ &error);
+ if (error != NULL) {
+ egg_warning ("Cannot connect, maybe the daemon is not running: %s\n", error->message);
+ g_error_free (error);
+ applet->proxy = NULL;
+ return FALSE;
+ }
+ dbus_g_proxy_add_signal (applet->proxy, "BrightnessChanged",
+ G_TYPE_UINT, G_TYPE_INVALID);
+ dbus_g_proxy_connect_signal (applet->proxy, "BrightnessChanged",
+ G_CALLBACK (brightness_changed_cb),
+ applet, NULL);
+ /* reset, we might be starting race */
+ applet->call_worked = gpm_applet_get_brightness (applet);
+ }
+ return TRUE;
+}
+
+/**
+ * gpm_brightness_applet_dbus_disconnect:
+ **/
+gboolean
+gpm_brightness_applet_dbus_disconnect (GpmBrightnessApplet *applet)
+{
+ if (applet->proxy != NULL) {
+ egg_debug ("removing proxy\n");
+ g_object_unref (applet->proxy);
+ applet->proxy = NULL;
+ }
+ return TRUE;
+}
+
+/**
+ * monitor_connection_cb:
+ * @proxy: The dbus raw proxy
+ * @status: The status of the service, where TRUE is connected
+ * @screensaver: This class instance
+ **/
+static void
+monitor_connection_cb (EggDbusMonitor *monitor,
+ gboolean status,
+ GpmBrightnessApplet *applet)
+{
+ if (status) {
+ gpm_brightness_applet_dbus_connect (applet);
+ gpm_applet_update_tooltip (applet);
+ gpm_applet_draw_cb (applet);
+ } else {
+ gpm_brightness_applet_dbus_disconnect (applet);
+ gpm_applet_update_tooltip (applet);
+ gpm_applet_draw_cb (applet);
+ }
+}
+
+/**
+ * gpm_brightness_applet_init:
+ * @applet: Brightness applet instance
+ **/
+static void
+gpm_brightness_applet_init (GpmBrightnessApplet *applet)
+{
+ DBusGConnection *connection;
+
+ /* initialize fields */
+ applet->size = 0;
+ applet->call_worked = TRUE;
+ applet->popped = FALSE;
+ applet->popup = NULL;
+ applet->icon = NULL;
+ applet->connection = NULL;
+ applet->proxy = NULL;
+
+ /* Add application specific icons to search path */
+ gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),
+ GPM_DATA G_DIR_SEPARATOR_S "icons");
+
+
+ applet->monitor = egg_dbus_monitor_new ();
+ g_signal_connect (applet->monitor, "connection-changed",
+ G_CALLBACK (monitor_connection_cb), applet);
+ connection = dbus_g_bus_get (DBUS_BUS_SESSION, NULL);
+ egg_dbus_monitor_assign (applet->monitor, connection, GPM_DBUS_SERVICE);
+ gpm_brightness_applet_dbus_connect (applet);
+
+ /* coldplug */
+ applet->call_worked = gpm_applet_get_brightness (applet);
+ gpm_applet_update_popup_level (applet);
+
+ /* prepare */
+ mate_panel_applet_set_flags (MATE_PANEL_APPLET (applet), MATE_PANEL_APPLET_EXPAND_MINOR);
+
+ /* show */
+ gtk_widget_show_all (GTK_WIDGET(applet));
+
+ /* set appropriate size and load icon accordingly */
+ gpm_applet_draw_cb (applet);
+
+ /* connect */
+ g_signal_connect (G_OBJECT(applet), "button-press-event",
+ G_CALLBACK(gpm_applet_popup_cb), NULL);
+
+ g_signal_connect (G_OBJECT(applet), "scroll-event",
+ G_CALLBACK(gpm_applet_scroll_cb), NULL);
+
+ g_signal_connect (G_OBJECT(applet), "key-press-event",
+ G_CALLBACK(gpm_applet_key_press_cb), NULL);
+
+ /* We use g_signal_connect_after because letting the panel draw
+ * the background is the only way to have the correct
+ * background when a theme defines a background picture. */
+ g_signal_connect_after (G_OBJECT(applet), "expose-event",
+ G_CALLBACK(gpm_applet_draw_cb), NULL);
+
+ g_signal_connect (G_OBJECT(applet), "change-background",
+ G_CALLBACK(gpm_applet_change_background_cb), NULL);
+
+ g_signal_connect (G_OBJECT(applet), "change-orient",
+ G_CALLBACK(gpm_applet_draw_cb), NULL);
+
+ g_signal_connect (G_OBJECT(applet), "change-orient",
+ G_CALLBACK(gpm_applet_destroy_popup_cb), NULL);
+
+ g_signal_connect (G_OBJECT(applet), "destroy",
+ G_CALLBACK(gpm_applet_destroy_cb), NULL);
+
+ /* prevent scroll events from reaching the tooltip */
+ g_signal_connect (G_OBJECT (applet), "event-after", G_CALLBACK (gpm_applet_stop_scroll_events_cb), NULL);
+
+ g_signal_connect (gtk_icon_theme_get_default (), "changed", G_CALLBACK (gpm_applet_theme_change_cb), applet);
+}
+
+/**
+ * gpm_applet_matecomponent_cb:
+ * @_applet: GpmBrightnessApplet instance created by the matecomponent factory
+ * @iid: MateComponent id
+ *
+ * the function called by matecomponent factory after creation
+ **/
+static gboolean
+gpm_applet_matecomponent_cb (MatePanelApplet *_applet, const gchar *iid, gpointer data)
+{
+ GpmBrightnessApplet *applet = GPM_BRIGHTNESS_APPLET(_applet);
+
+ static MateComponentUIVerb verbs [] = {
+ MATECOMPONENT_UI_VERB ("About", gpm_applet_dialog_about_cb),
+ MATECOMPONENT_UI_VERB ("Help", gpm_applet_help_cb),
+ MATECOMPONENT_UI_VERB_END
+ };
+
+ if (strcmp (iid, GPM_BRIGHTNESS_APPLET_OAFID) != 0) {
+ return FALSE;
+ }
+
+ mate_panel_applet_setup_menu_from_file (MATE_PANEL_APPLET (applet),
+ DATADIR,
+ "MATE_BrightnessApplet.xml",
+ NULL, verbs, applet);
+ gpm_applet_draw_cb (applet);
+ return TRUE;
+}
+
+/**
+ * this generates a main with a matecomponent factory
+ **/
+MATE_PANEL_APPLET_MATECOMPONENT_FACTORY
+ (/* the factory iid */
+ GPM_BRIGHTNESS_APPLET_FACTORY_OAFID,
+ /* generates brighness applets instead of regular mate applets */
+ GPM_TYPE_BRIGHTNESS_APPLET,
+ /* the applet name and version */
+ "BrightnessApplet", VERSION,
+ /* our callback (with no user data) */
+ gpm_applet_matecomponent_cb, NULL);
author	Stefano Karapetsas <[email protected]>	2011-12-11 12:55:19 +0100
committer	Stefano Karapetsas <[email protected]>	2011-12-11 12:55:19 +0100
commit	51175189c6d7313a3b84019e39496f957c4e6164 (patch)
tree	e4c2c130fa3140bca28685ef900f04a012e53dcd /applets/brightness/brightness-applet.c
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