Adding upstream version 3.38.6.upstream/3.38.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 375 insertions, 0 deletions

diff --git a/src/shell-tray-manager.c b/src/shell-tray-manager.c
new file mode 100644
index 0000000..e23179f
--- /dev/null
+++ b/src/shell-tray-manager.c
@@ -0,0 +1,375 @@
+/* -*- 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;
+  StWidget *theme_widget;
+};
+
+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 shell_tray_manager_release_resources (ShellTrayManager *manager);
+
+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->bg_color = default_color;
+}
+
+static void
+shell_tray_manager_finalize (GObject *object)
+{
+  ShellTrayManager *manager = SHELL_TRAY_MANAGER (object);
+
+  shell_tray_manager_release_resources (manager);
+
+  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_ensure_resources (ShellTrayManager *manager)
+{
+  if (manager->priv->na_manager != NULL)
+    return;
+
+  manager->priv->icons = g_hash_table_new_full (NULL, NULL,
+                                                NULL, free_tray_icon);
+
+  manager->priv->na_manager = na_tray_manager_new ();
+
+  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_release_resources (ShellTrayManager *manager)
+{
+  g_clear_object (&manager->priv->na_manager);
+  g_clear_pointer (&manager->priv->icons, g_hash_table_destroy);
+}
+
+static void
+shell_tray_manager_style_changed (StWidget *theme_widget,
+                                  gpointer  user_data)
+{
+  ShellTrayManager *manager = user_data;
+  StThemeNode *theme_node;
+  StIconColors *icon_colors;
+
+  if (manager->priv->na_manager == NULL)
+    return;
+
+  theme_node = st_widget_get_theme_node (theme_widget);
+  icon_colors = st_theme_node_get_icon_colors (theme_node);
+  na_tray_manager_set_colors (manager->priv->na_manager,
+                              &icon_colors->foreground, &icon_colors->warning,
+                              &icon_colors->error, &icon_colors->success);
+}
+
+static void
+shell_tray_manager_manage_screen_internal (ShellTrayManager *manager)
+{
+  shell_tray_manager_ensure_resources (manager);
+  na_tray_manager_manage_screen (manager->priv->na_manager);
+}
+
+void
+shell_tray_manager_manage_screen (ShellTrayManager *manager,
+                                  StWidget         *theme_widget)
+{
+  MetaDisplay *display = shell_global_get_display (shell_global_get ());
+
+  g_set_weak_pointer (&manager->priv->theme_widget, theme_widget);
+
+  if (meta_display_get_x11_display (display) != NULL)
+    shell_tray_manager_manage_screen_internal (manager);
+
+  g_signal_connect_object (display, "x11-display-setup",
+                           G_CALLBACK (shell_tray_manager_manage_screen_internal),
+                           manager, G_CONNECT_SWAPPED);
+  g_signal_connect_object (display, "x11-display-closing",
+                           G_CALLBACK (shell_tray_manager_release_resources),
+                           manager, G_CONNECT_SWAPPED);
+
+  g_signal_connect_object (theme_widget, "style-changed",
+                           G_CALLBACK (shell_tray_manager_style_changed),
+                           manager, 0);
+  shell_tray_manager_style_changed (theme_widget, manager);
+}
+
+void
+shell_tray_manager_unmanage_screen (ShellTrayManager *manager)
+{
+  MetaDisplay *display = shell_global_get_display (shell_global_get ());
+
+  g_signal_handlers_disconnect_by_data (display, manager);
+
+  if (manager->priv->theme_widget != NULL)
+    {
+      g_signal_handlers_disconnect_by_func (manager->priv->theme_widget,
+                                            G_CALLBACK (shell_tray_manager_style_changed),
+                                            manager);
+    }
+  g_set_weak_pointer (&manager->priv->theme_widget, NULL);
+
+  shell_tray_manager_release_resources (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.);
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
+      gdk_window_set_background_pattern (gtk_widget_get_window (widget),
+                                         bg_pattern);
+G_GNUC_END_IGNORE_DEPRECATIONS
+
+      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;
+
+  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);
+}