2 * This file is a part of hildon
4 * Copyright (C) 2008 Nokia Corporation, all rights reserved.
6 * Contact: Karl Lattimer <karl.lattimer@nokia.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser Public License as published by
10 * the Free Software Foundation; version 2 of the license.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Lesser Public License for more details.
20 * SECTION:hildon-app-menu
21 * @short_description: Widget representing the application menu in the Hildon framework.
23 * The #HildonAppMenu is a GTK widget which represents an application
24 * menu in the Hildon framework.
26 * This menu opens from the top of the screen and contains a number of
27 * entries (#GtkButton) organized in two columns. Entries are added
28 * left to right and top to bottom.
30 * Besides that, the #HildonAppMenu can contain filter buttons
31 * (#GtkToggleButton or #GtkRadioButton), which can be grouped.
34 * <title>Creating a HildonAppMenu</title>
36 * HildonAppMenu *menu;
39 * GtkWidget *filtergroup;
41 * menu = HILDON_APP_MENU (hildon_app_menu_new ());
43 * // Create a button and add it to the menu
44 * button = gtk_button_new_with_label ("Menu command one");
45 * g_signal_connect (button, "clicked", G_CALLBACK (button_one_clicked), userdata);
46 * hildon_app_menu_append (menu, GTK_BUTTON (button));
48 * button = gtk_button_new_with_label ("Menu command two");
49 * g_signal_connect (button, "clicked", G_CALLBACK (button_two_clicked), userdata);
50 * hildon_app_menu_append (menu, GTK_BUTTON (button));
52 * // Create a filter and add it to the menu
53 * filter = gtk_toggle_button_new_with_label ("Filter one");
54 * g_signal_connect (filter, "clicked", G_CALLBACK (filter_one_clicked), userdata);
55 * hildon_app_menu_add_filter (menu, GTK_BUTTON (filter), NULL);
57 * // Create another filter and add it to a new filter group
58 * filter = gtk_radio_button_new_with_label (NULL, "Filter two");
59 * gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (filter), FALSE);
60 * g_signal_connect (filter, "clicked", G_CALLBACK (filter_two_clicked), userdata);
61 * filtergroup = hildon_app_menu_add_filter (menu, GTK_BUTTON (filter), NULL);
62 * // Add a new filter to the same filter group
63 * filter = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (filter), "Filter three");
64 * gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (filter), FALSE);
65 * g_signal_connect (filter, "clicked", G_CALLBACK (filter_three_clicked), userdata);
66 * hildon_app_menu_add_filter (menu, GTK_BUTTON (filter), filtergroup);
69 * hildon_app_menu_popup (menu);
75 #include "hildon-app-menu.h"
76 #include "hildon-app-menu-private.h"
79 grab_transfer_window_get (GtkWidget *widget);
81 G_DEFINE_TYPE (HildonAppMenu, hildon_app_menu, GTK_TYPE_WINDOW);
84 * hildon_app_menu_new:
86 * Creates a new HildonAppMenu.
88 * Return value: A @HildonAppMenu.
91 hildon_app_menu_new (void)
93 GtkWidget *menu = g_object_new (HILDON_TYPE_APP_MENU, NULL);
98 * hildon_app_menu_append
99 * @menu : A @HildonAppMenu
100 * @item : A @GtkButton to add to the HildonAppMenu
102 * Adds the @item to the @HildonAppMenu
105 hildon_app_menu_append (HildonAppMenu *menu,
108 HildonAppMenuPrivate *priv;
111 g_return_if_fail (HILDON_IS_APP_MENU (menu));
112 g_return_if_fail (GTK_IS_BUTTON (item));
114 priv = HILDON_APP_MENU_GET_PRIVATE(menu);
116 /* Calculate the row and column number */
117 col = priv->nitems % 2;
118 row = (priv->nitems - col) / 2;
121 /* GtkTable already calls gtk_table_resize() if necessary */
122 gtk_table_attach_defaults (priv->table, GTK_WIDGET (item), col, col + 1, row, row + 1);
124 /* Close the menu when the button is clicked */
125 g_signal_connect_swapped (item, "clicked", G_CALLBACK (gtk_widget_hide), menu);
127 gtk_widget_show (GTK_WIDGET (item));
131 * hildon_app_menu_add_filter
132 * @menu : A @HildonAppMenu
133 * @filter : A @GtkButton to add to the HildonAppMenu
134 * @group : An existing filter group, or %NULL to create a new one
136 * Adds the @filter to the @HildonAppMenu, to the group specified by @group
138 * Return value: The filter group where the filter has been added
141 hildon_app_menu_add_filter (HildonAppMenu *menu,
145 HildonAppMenuPrivate *priv;
147 g_return_val_if_fail (HILDON_IS_APP_MENU (menu), NULL);
148 g_return_val_if_fail (GTK_IS_BUTTON (filter), NULL);
149 g_return_val_if_fail (!group || GTK_IS_BOX (group), NULL);
151 priv = HILDON_APP_MENU_GET_PRIVATE(menu);
153 /* Create a new group if needed */
155 group = gtk_hbox_new (TRUE, 0);
156 gtk_box_pack_start (priv->filters_hbox, group, TRUE, TRUE, 0);
157 gtk_widget_show (group);
160 /* Pack the filter in the group and set its size */
161 gtk_box_pack_start (GTK_BOX (group), GTK_WIDGET (filter), TRUE, TRUE, 0);
162 gtk_size_group_add_widget (priv->sizegroup, GTK_WIDGET (filter));
164 /* Close the menu when the button is clicked */
165 g_signal_connect_swapped (filter, "clicked", G_CALLBACK (gtk_widget_hide), menu);
167 gtk_widget_show (GTK_WIDGET (filter));
173 * hildon_app_menu_get_group_from_filter
174 * @menu : A @HildonAppMenu
175 * @filter : A @GtkButton previously added to the menu
177 * Gets the filter group from a @filter previously added to a @HildonAppMenu
179 * Return value: The group where the @filter is in, or %NULL
182 hildon_app_menu_get_group_from_filter (HildonAppMenu *menu,
185 HildonAppMenuPrivate *priv;
187 GtkWidget *result = NULL;
189 g_return_val_if_fail (HILDON_IS_APP_MENU (menu), NULL);
190 g_return_val_if_fail (GTK_IS_BUTTON (filter), NULL);
192 priv = HILDON_APP_MENU_GET_PRIVATE(menu);
194 /* Get the list of filter groups */
195 grouplist = gtk_container_get_children (GTK_CONTAINER (priv->filters_hbox));
197 for (; grouplist != NULL && !result; grouplist = grouplist->next) {
199 GtkBox *group = GTK_BOX (grouplist->data);
200 GList *items = gtk_container_get_children (GTK_CONTAINER (group));
202 /* Look for the filter inside each filter group */
203 for (; items != NULL && !result; items = items->next) {
204 if (filter == items->data) {
205 result = GTK_WIDGET (group);
211 g_list_free (grouplist);
214 g_critical("Filter not found in hildon app menu!");
220 * hildon_app_menu_popup
221 * @menu : A @HildonAppMenu
223 * Displays the @HildonAppMenu on top of the screen
226 hildon_app_menu_popup (HildonAppMenu *menu)
228 g_return_if_fail (HILDON_IS_APP_MENU (menu));
231 GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (menu));
233 /* Position the menu in the top center of the screen */
234 gtk_window_get_default_size (GTK_WINDOW (menu), &x, NULL);
235 gtk_widget_size_request (GTK_WIDGET (menu), &req);
236 xpos = (gdk_screen_get_width (screen) - MAX(x, req.width)) / 2;
237 gtk_window_move (GTK_WINDOW (menu), xpos, 0);
239 gtk_widget_show (GTK_WIDGET (menu));
243 hildon_app_menu_map (GtkWidget *widget)
245 HildonAppMenuPrivate *priv = HILDON_APP_MENU_GET_PRIVATE(widget);
247 GTK_WIDGET_CLASS (hildon_app_menu_parent_class)->map (widget);
249 /* Grab pointer and keyboard */
250 if (priv->transfer_window == NULL) {
251 priv->transfer_window = grab_transfer_window_get (widget);
253 priv->transfer_window, TRUE,
254 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
255 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
256 GDK_POINTER_MOTION_MASK, NULL, NULL, GDK_CURRENT_TIME);
257 gdk_keyboard_grab (priv->transfer_window, TRUE, GDK_CURRENT_TIME);
258 gtk_grab_add (widget);
263 hildon_app_menu_unmap (GtkWidget *widget)
265 HildonAppMenuPrivate *priv = HILDON_APP_MENU_GET_PRIVATE(widget);
267 if (priv->transfer_window != NULL) {
268 /* Remove the grab */
269 gdk_display_pointer_ungrab (gtk_widget_get_display (widget),
271 gtk_grab_remove (widget);
273 /* Destroy the transfer window */
274 gdk_window_destroy (priv->transfer_window);
275 priv->transfer_window = NULL;
278 GTK_WIDGET_CLASS (hildon_app_menu_parent_class)->unmap (widget);
282 hildon_app_menu_button_release (GtkWidget *widget,
283 GdkEventButton *event)
286 gboolean released_outside;
287 HildonAppMenuPrivate *priv = HILDON_APP_MENU_GET_PRIVATE(widget);
289 gdk_window_get_position (widget->window, &x, &y);
291 /* Whether the button has been released outside the widget */
292 released_outside = (event->window != priv->transfer_window ||
293 event->x < x || event->x > x + widget->allocation.width ||
294 event->y < y || event->y > y + widget->allocation.height);
296 if (released_outside) {
297 gtk_widget_hide (widget);
300 if (GTK_WIDGET_CLASS (hildon_app_menu_parent_class)->button_release_event) {
301 return GTK_WIDGET_CLASS (hildon_app_menu_parent_class)->button_release_event (widget, event);
307 /* Grab transfer window (based on the one from GtkMenu) */
309 grab_transfer_window_get (GtkWidget *widget)
312 GdkWindowAttr attributes;
313 gint attributes_mask;
317 attributes.width = 10;
318 attributes.height = 10;
319 attributes.window_type = GDK_WINDOW_TEMP;
320 attributes.wclass = GDK_INPUT_ONLY;
321 attributes.override_redirect = TRUE;
322 attributes.event_mask = 0;
324 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
326 window = gdk_window_new (gtk_widget_get_root_window (widget),
327 &attributes, attributes_mask);
328 gdk_window_set_user_data (window, widget);
330 gdk_window_show (window);
336 hildon_app_menu_realize (GtkWidget *widget)
338 GTK_WIDGET_CLASS (hildon_app_menu_parent_class)->realize (widget);
339 gdk_window_set_override_redirect(widget->window, TRUE);
343 hildon_app_menu_init (HildonAppMenu *menu)
345 GtkWidget *alignment;
348 guint filter_group_spacing, horizontal_spacing, vertical_spacing,
350 HildonAppMenuPrivate *priv = HILDON_APP_MENU_GET_PRIVATE(menu);
352 gtk_widget_style_get (GTK_WIDGET (menu),
353 "filter-group-spacing", &filter_group_spacing,
354 "horizontal-spacing", &horizontal_spacing,
355 "vertical-spacing", &vertical_spacing,
356 "external-border", &external_border,
359 /* Initialize private variables */
360 priv->filters_hbox = GTK_BOX (gtk_hbox_new (FALSE, filter_group_spacing));
361 priv->vbox = GTK_BOX (gtk_vbox_new (FALSE, 10));
362 priv->table = GTK_TABLE (gtk_table_new (1, 2, TRUE));
363 priv->sizegroup = GTK_SIZE_GROUP (gtk_size_group_new (GTK_SIZE_GROUP_BOTH));
365 priv->transfer_window = NULL;
367 /* Set spacing between table elements */
368 gtk_table_set_row_spacings (priv->table, vertical_spacing);
369 gtk_table_set_col_spacings (priv->table, horizontal_spacing);
371 /* Align the filters to the center */
372 alignment = gtk_alignment_new (0.5, 0.5, 0, 0);
373 gtk_container_add (GTK_CONTAINER (alignment), GTK_WIDGET (priv->filters_hbox));
375 /* Pack everything */
376 gtk_container_add (GTK_CONTAINER (menu), GTK_WIDGET (priv->vbox));
377 gtk_box_pack_start (priv->vbox, alignment, TRUE, TRUE, 0);
378 gtk_box_pack_start (priv->vbox, GTK_WIDGET (priv->table), TRUE, TRUE, 0);
380 /* Set default size */
381 screen = gtk_widget_get_screen (GTK_WIDGET (menu));
382 width = gdk_screen_get_width (screen) - external_border * 2;
383 gtk_window_set_default_size (GTK_WINDOW (menu), width, -1);
385 gtk_widget_show_all (GTK_WIDGET (priv->vbox));
387 gtk_window_set_type_hint (GTK_WINDOW (menu), GDK_WINDOW_TYPE_HINT_POPUP_MENU);
391 hildon_app_menu_finalize (GObject *object)
393 HildonAppMenuPrivate *priv = HILDON_APP_MENU_GET_PRIVATE(object);
395 g_object_unref (priv->sizegroup);
396 if (priv->transfer_window)
397 gdk_window_destroy (priv->transfer_window);
399 g_signal_handlers_destroy (object);
400 G_OBJECT_CLASS (hildon_app_menu_parent_class)->finalize (object);
404 hildon_app_menu_class_init (HildonAppMenuClass *klass)
406 GObjectClass *gobject_class = (GObjectClass *)klass;
407 GtkWidgetClass *widget_class = (GtkWidgetClass *)klass;
409 gobject_class->finalize = hildon_app_menu_finalize;
410 widget_class->map = hildon_app_menu_map;
411 widget_class->unmap = hildon_app_menu_unmap;
412 widget_class->realize = hildon_app_menu_realize;
413 widget_class->button_release_event = hildon_app_menu_button_release;
415 g_type_class_add_private (klass, sizeof (HildonAppMenuPrivate));
417 gtk_widget_class_install_style_property (
420 "filter-group-spacing",
421 "Space between filter groups",
422 "Space in pixels between the filter groups",
426 gtk_widget_class_install_style_property (
429 "horizontal-spacing",
430 "Horizontal spacing on menu items",
431 "Horizontal spacing between each menu item (but not filters)",
435 gtk_widget_class_install_style_property (
439 "Vertical spacing on menu items",
440 "Vertical spacing between each menu item (but not filters)",
444 gtk_widget_class_install_style_property (
448 "Border between menu and screen edges",
449 "Border between the right and left edges of the menu and the screen edges",