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gnome-shell/src/shell-tray-manager.c
Florian Müllner 294702d3f1 shell: Use G_DECLARE_*_TYPE macros 
Cut down on boilerplate by using the (no longer that) new helper
macros. We don't care about breaking ABI in private libraries, so
use G_DECLARE_FINAL_TYPE even where the class struct used to be
exposed in the header, except for types we inherit from ourselves
(obviously) or where the class exposes any vfuncs (where changes
could affect inheritance in extensions).
2015-10-15 22:58:28 +02:00

348 lines
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C
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
#include "config.h"
#include <clutter/clutter.h>
#include <clutter/x11/clutter-x11.h>
#include <girepository.h>
#include <gtk/gtk.h>
#include <meta/display.h>
#include "shell-tray-manager.h"
#include "na-tray-manager.h"
#include "shell-tray-icon.h"
#include "shell-embedded-window.h"
#include "shell-global.h"
typedef struct _ShellTrayManagerPrivate ShellTrayManagerPrivate;
struct _ShellTrayManager
{
GObject parent_instance;
ShellTrayManagerPrivate *priv;
};
struct _ShellTrayManagerPrivate {
NaTrayManager *na_manager;
ClutterColor bg_color;
GHashTable *icons;
};
typedef struct {
ShellTrayManager *manager;
GtkWidget *socket;
GtkWidget *window;
ClutterActor *actor;
} ShellTrayManagerChild;
enum {
PROP_0,
PROP_BG_COLOR
};
/* Signals */
enum
{
TRAY_ICON_ADDED,
TRAY_ICON_REMOVED,
LAST_SIGNAL
};
G_DEFINE_TYPE_WITH_PRIVATE (ShellTrayManager, shell_tray_manager, G_TYPE_OBJECT);
static guint shell_tray_manager_signals [LAST_SIGNAL] = { 0 };
static const ClutterColor default_color = { 0x00, 0x00, 0x00, 0xff };
static void na_tray_icon_added (NaTrayManager *na_manager, GtkWidget *child, gpointer manager);
static void na_tray_icon_removed (NaTrayManager *na_manager, GtkWidget *child, gpointer manager);
static void
free_tray_icon (gpointer data)
{
ShellTrayManagerChild *child = data;
gtk_widget_destroy (child->window);
if (child->actor)
{
g_signal_handlers_disconnect_matched (child->actor, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, child);
g_object_unref (child->actor);
}
g_slice_free (ShellTrayManagerChild, child);
}
static void
shell_tray_manager_set_property(GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
ShellTrayManager *manager = SHELL_TRAY_MANAGER (object);
switch (prop_id)
{
case PROP_BG_COLOR:
{
ClutterColor *color = g_value_get_boxed (value);
if (color)
manager->priv->bg_color = *color;
else
manager->priv->bg_color = default_color;
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
shell_tray_manager_get_property(GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ShellTrayManager *manager = SHELL_TRAY_MANAGER (object);
switch (prop_id)
{
case PROP_BG_COLOR:
g_value_set_boxed (value, &manager->priv->bg_color);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
shell_tray_manager_init (ShellTrayManager *manager)
{
manager->priv = shell_tray_manager_get_instance_private (manager);
manager->priv->na_manager = na_tray_manager_new ();
manager->priv->icons = g_hash_table_new_full (NULL, NULL,
NULL, free_tray_icon);
manager->priv->bg_color = default_color;
g_signal_connect (manager->priv->na_manager, "tray-icon-added",
G_CALLBACK (na_tray_icon_added), manager);
g_signal_connect (manager->priv->na_manager, "tray-icon-removed",
G_CALLBACK (na_tray_icon_removed), manager);
}
static void
shell_tray_manager_finalize (GObject *object)
{
ShellTrayManager *manager = SHELL_TRAY_MANAGER (object);
g_object_unref (manager->priv->na_manager);
g_hash_table_destroy (manager->priv->icons);
G_OBJECT_CLASS (shell_tray_manager_parent_class)->finalize (object);
}
static void
shell_tray_manager_class_init (ShellTrayManagerClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = shell_tray_manager_finalize;
gobject_class->set_property = shell_tray_manager_set_property;
gobject_class->get_property = shell_tray_manager_get_property;
shell_tray_manager_signals[TRAY_ICON_ADDED] =
g_signal_new ("tray-icon-added",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 1,
CLUTTER_TYPE_ACTOR);
shell_tray_manager_signals[TRAY_ICON_REMOVED] =
g_signal_new ("tray-icon-removed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 1,
CLUTTER_TYPE_ACTOR);
/* Lifting the CONSTRUCT_ONLY here isn't hard; you just need to
* iterate through the icons, reset the background pixmap, and
* call na_tray_child_force_redraw()
*/
g_object_class_install_property (gobject_class,
PROP_BG_COLOR,
g_param_spec_boxed ("bg-color",
"BG Color",
"Background color (only if we don't have transparency)",
CLUTTER_TYPE_COLOR,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
}
ShellTrayManager *
shell_tray_manager_new (void)
{
return g_object_new (SHELL_TYPE_TRAY_MANAGER, NULL);
}
static void
shell_tray_manager_style_changed (StWidget *theme_widget,
gpointer user_data)
{
ShellTrayManager *manager = user_data;
StThemeNode *theme_node;
StIconColors *icon_colors;
GdkColor foreground, warning, error, success;
theme_node = st_widget_get_theme_node (theme_widget);
icon_colors = st_theme_node_get_icon_colors (theme_node);
foreground.red = icon_colors->foreground.red * 0x101;
foreground.green = icon_colors->foreground.green * 0x101;
foreground.blue = icon_colors->foreground.blue * 0x101;
warning.red = icon_colors->warning.red * 0x101;
warning.green = icon_colors->warning.green * 0x101;
warning.blue = icon_colors->warning.blue * 0x101;
error.red = icon_colors->error.red * 0x101;
error.green = icon_colors->error.green * 0x101;
error.blue = icon_colors->error.blue * 0x101;
success.red = icon_colors->success.red * 0x101;
success.green = icon_colors->success.green * 0x101;
success.blue = icon_colors->success.blue * 0x101;
na_tray_manager_set_colors (manager->priv->na_manager,
&foreground, &warning,
&error, &success);
}
void
shell_tray_manager_manage_screen (ShellTrayManager *manager,
MetaScreen *screen,
StWidget *theme_widget)
{
GdkDisplay *display;
GdkScreen *gdk_screen;
int screen_number;
display = gdk_display_get_default ();
screen_number = meta_screen_get_screen_number (screen);
gdk_screen = gdk_display_get_screen (display, screen_number);
na_tray_manager_manage_screen (manager->priv->na_manager, gdk_screen);
g_signal_connect (theme_widget, "style-changed",
G_CALLBACK (shell_tray_manager_style_changed), manager);
shell_tray_manager_style_changed (theme_widget, manager);
}
static void
shell_tray_manager_child_on_realize (GtkWidget *widget,
ShellTrayManagerChild *child)
{
/* If the tray child is using an RGBA colormap (and so we have real
* transparency), we don't need to worry about the background. If
* not, we obey the bg-color property by creating a cairo pattern of
* that color and setting it as our background. Then "parent-relative"
* background on the socket and the plug within that will cause
* the icons contents to appear on top of our background color.
*/
if (!na_tray_child_has_alpha (NA_TRAY_CHILD (child->socket)))
{
ClutterColor color = child->manager->priv->bg_color;
cairo_pattern_t *bg_pattern;
bg_pattern = cairo_pattern_create_rgb (color.red / 255.,
color.green / 255.,
color.blue / 255.);
gdk_window_set_background_pattern (gtk_widget_get_window (widget),
bg_pattern);
cairo_pattern_destroy (bg_pattern);
}
}
static void
on_plug_added (GtkSocket *socket,
ShellTrayManager *manager)
{
ShellTrayManagerChild *child;
g_signal_handlers_disconnect_by_func (socket, on_plug_added, manager);
child = g_hash_table_lookup (manager->priv->icons, socket);
child->actor = shell_tray_icon_new (SHELL_EMBEDDED_WINDOW (child->window));
g_object_ref_sink (child->actor);
g_signal_emit (manager, shell_tray_manager_signals[TRAY_ICON_ADDED], 0,
child->actor);
}
static void
na_tray_icon_added (NaTrayManager *na_manager, GtkWidget *socket,
gpointer user_data)
{
ShellTrayManager *manager = user_data;
GtkWidget *win;
ShellTrayManagerChild *child;
/* We don't need the NaTrayIcon to be composited on the window we
* put it in: the window is the same size as the tray icon
* and transparent. We can just use the default X handling of
* subwindows as mode of SOURCE (replace the parent with the
* child) and then composite the parent onto the stage.
*/
na_tray_child_set_composited (NA_TRAY_CHILD (socket), FALSE);
win = shell_embedded_window_new ();
gtk_container_add (GTK_CONTAINER (win), socket);
/* The visual of the socket matches that of its contents; make
* the window we put it in match that as well */
gtk_widget_set_visual (win, gtk_widget_get_visual (socket));
child = g_slice_new0 (ShellTrayManagerChild);
child->manager = manager;
child->window = win;
child->socket = socket;
g_signal_connect (win, "realize",
G_CALLBACK (shell_tray_manager_child_on_realize), child);
gtk_widget_show_all (win);
g_hash_table_insert (manager->priv->icons, socket, child);
g_signal_connect (socket, "plug-added", G_CALLBACK (on_plug_added), manager);
}
static void
na_tray_icon_removed (NaTrayManager *na_manager, GtkWidget *socket,
gpointer user_data)
{
ShellTrayManager *manager = user_data;
ShellTrayManagerChild *child;
child = g_hash_table_lookup (manager->priv->icons, socket);
g_return_if_fail (child != NULL);
if (child->actor != NULL)
{
/* Only emit signal if a corresponding tray-icon-added signal was emitted,
that is, if embedding did not fail and we got a plug-added
*/
g_signal_emit (manager,
shell_tray_manager_signals[TRAY_ICON_REMOVED], 0,
child->actor);
}
g_hash_table_remove (manager->priv->icons, socket);
}
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