[tracker/search-bar] TrackerResultsWindow: grab pointer/keyboard on popup.

[Carlos Garnacho <carlosg src gnome org>]

commit 76cb75b9c7cb02e83e848a21365019b86463074c
Author: Carlos Garnacho <carlos lanedo com>
Date:   Thu Sep 24 13:07:07 2009 +0200

    TrackerResultsWindow: grab pointer/keyboard on popup.
    
    This makes the results window behave as expected wrt keyboard handling for the
    treeview and pressing esc or clicking outside the window to pop it out.

 src/tracker-search-bar/tracker-applet.c         |    2 +-
 src/tracker-search-bar/tracker-results-window.c |   76 +++++++++++++++++++++++
 src/tracker-search-bar/tracker-results-window.h |    1 +
 3 files changed, 78 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-search-bar/tracker-applet.c b/src/tracker-search-bar/tracker-applet.c
index 53a80bd..c27d34f 100644
--- a/src/tracker-search-bar/tracker-applet.c
+++ b/src/tracker-search-bar/tracker-applet.c
@@ -100,7 +100,7 @@ applet_entry_activate_cb (GtkEntry      *entry,
 
 	gtk_entry_set_text (entry, "");
 
-	gtk_widget_show (GTK_WIDGET (applet->results));
+	tracker_results_window_popup (TRACKER_RESULTS_WINDOW (applet->results));
 }
 
 static gboolean
diff --git a/src/tracker-search-bar/tracker-results-window.c b/src/tracker-search-bar/tracker-results-window.c
index bee608a..09aa19a 100644
--- a/src/tracker-search-bar/tracker-results-window.c
+++ b/src/tracker-search-bar/tracker-results-window.c
@@ -49,6 +49,8 @@ static void results_window_get_property (GObject      *object,
 
 static gboolean results_window_key_press_event (GtkWidget      *widget,
 						GdkEventKey    *event);
+static gboolean results_window_button_press_event (GtkWidget      *widget,
+						   GdkEventButton *event);
 static void     results_window_size_request    (GtkWidget      *widget,
 						GtkRequisition *requisition);
 static void     results_window_screen_changed  (GtkWidget      *widget,
@@ -138,6 +140,7 @@ tracker_results_window_class_init (TrackerResultsWindowClass *klass)
 	object_class->get_property = results_window_get_property;
 
 	widget_class->key_press_event = results_window_key_press_event;
+	widget_class->button_press_event = results_window_button_press_event;
 	widget_class->size_request = results_window_size_request;
 	widget_class->screen_changed = results_window_screen_changed;
 
@@ -282,12 +285,38 @@ static gboolean
 results_window_key_press_event (GtkWidget   *widget,
 				GdkEventKey *event)
 {
+	TrackerResultsWindowPrivate *priv;
+
 	if (event->keyval == GDK_Escape) {
 		gtk_widget_hide (widget);
 
 		return TRUE;
 	}
 
+	priv = TRACKER_RESULTS_WINDOW_GET_PRIVATE (widget);
+
+	if (GTK_WIDGET_CLASS (tracker_results_window_parent_class)->key_press_event (widget, event)) {
+		return TRUE;
+	}
+
+	return FALSE;
+}
+
+static gboolean
+results_window_button_press_event (GtkWidget      *widget,
+				   GdkEventButton *event)
+{
+	if (event->x < 0 || event->x > widget->allocation.width ||
+	    event->y < 0 || event->y > widget->allocation.height) {
+		/* Click happened outside window, pop it down */
+		gtk_widget_hide (widget);
+		return TRUE;
+	}
+
+	if (GTK_WIDGET_CLASS (tracker_results_window_parent_class)->button_press_event (widget, event)) {
+		return TRUE;
+	}
+
 	return FALSE;
 }
 
@@ -339,6 +368,8 @@ results_window_screen_changed (GtkWidget *widget,
 		priv->icon_theme = gtk_icon_theme_get_for_screen (screen);
 		/* FIXME: trigger the model to update icons */
 	}
+
+	GTK_WIDGET_CLASS (tracker_results_window_parent_class)->screen_changed (widget, prev_screen);
 }
 
 static ItemData *
@@ -1010,3 +1041,48 @@ tracker_results_window_new (GtkWidget   *parent,
 			     "query", query,
 			     NULL);
 }
+
+void
+tracker_results_window_popup (TrackerResultsWindow *window)
+{
+	TrackerResultsWindowPrivate *priv;
+	GdkGrabStatus status;
+	GtkWidget *widget;
+	guint32 time;
+
+	g_return_if_fail (TRACKER_IS_RESULTS_WINDOW (window));
+
+	widget = GTK_WIDGET (window);
+	time = gtk_get_current_event_time ();
+	priv = TRACKER_RESULTS_WINDOW_GET_PRIVATE (window);
+
+	gtk_widget_show (widget);
+
+	/* Process events to ensure the window
+	 * is viewable so the grab does not fail
+	 */
+	while (gtk_events_pending ()) {
+		gtk_main_iteration ();
+	}
+
+	/* Grab pointer */
+	status = gdk_pointer_grab (widget->window,
+				   TRUE,
+				   GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK,
+				   NULL, NULL,
+				   time);
+
+	if (status != GDK_GRAB_SUCCESS) {
+		gtk_widget_hide (widget);
+	} else {
+		status = gdk_keyboard_grab (widget->window, TRUE, time);
+
+		if (status != GDK_GRAB_SUCCESS) {
+			gtk_widget_hide (widget);
+		}
+	}
+
+	if (status == GDK_GRAB_SUCCESS) {
+		gtk_widget_grab_focus (priv->treeview);
+	}
+}
diff --git a/src/tracker-search-bar/tracker-results-window.h b/src/tracker-search-bar/tracker-results-window.h
index 67a2e3a..d8e0ae1 100644
--- a/src/tracker-search-bar/tracker-results-window.h
+++ b/src/tracker-search-bar/tracker-results-window.h
@@ -49,6 +49,7 @@ GType       tracker_results_window_get_type (void) G_GNUC_CONST;
 
 GtkWidget * tracker_results_window_new      (GtkWidget   *parent,
 					     const gchar *query);
+void        tracker_results_window_popup    (TrackerResultsWindow *window);
 
 G_END_DECLS