3 * Copyright (C) 2006-2007 Imendio AB
4 * Contact: Kristian Rietveld <kris@imendio.com>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
24 #include "gtktooltip.h"
30 #include "gtkwindow.h"
35 #include "gtksizerequest.h"
36 #include "gtkwindowprivate.h"
41 * @Short_description: Add tips to your widgets
44 * Basic tooltips can be realized simply by using gtk_widget_set_tooltip_text()
45 * or gtk_widget_set_tooltip_markup() without any explicit tooltip object.
47 * When you need a tooltip with a little more fancy contents, like adding an
48 * image, or you want the tooltip to have different contents per #GtkTreeView
49 * row or cell, you will have to do a little more work:
53 * Set the #GtkWidget:has-tooltip property to %TRUE, this will make GTK+
54 * monitor the widget for motion and related events which are needed to
55 * determine when and where to show a tooltip.
60 * Connect to the #GtkWidget::query-tooltip signal. This signal will be
61 * emitted when a tooltip is supposed to be shown. One of the arguments passed
62 * to the signal handler is a GtkTooltip object. This is the object that we
63 * are about to display as a tooltip, and can be manipulated in your callback
64 * using functions like gtk_tooltip_set_icon(). There are functions for setting
65 * the tooltip's markup, setting an image from a stock icon, or even putting in
71 * Return %TRUE from your query-tooltip handler. This causes the tooltip to be
72 * show. If you return %FALSE, it will not be shown.
77 * In the probably rare case where you want to have even more control over the
78 * tooltip that is about to be shown, you can set your own #GtkWindow which
79 * will be used as tooltip window. This works as follows:
83 * Set #GtkWidget:has-tooltip and connect to #GtkWidget::query-tooltip as
89 * Use gtk_widget_set_tooltip_window() to set a #GtkWindow created by you as
95 * In the #GtkWidget::query-tooltip callback you can access your window using
96 * gtk_widget_get_tooltip_window() and manipulate as you wish. The semantics of
97 * the return value are exactly as before, return %TRUE to show the window,
98 * %FALSE to not show it.
108 #define GTK_TOOLTIP_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TOOLTIP, GtkTooltipClass))
109 #define GTK_IS_TOOLTIP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TOOLTIP))
110 #define GTK_TOOLTIP_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TOOLTIP, GtkTooltipClass))
112 typedef struct _GtkTooltipClass GtkTooltipClass;
116 GObject parent_instance;
119 GtkWidget *alignment;
123 GtkWidget *custom_widget;
125 GtkWindow *current_window;
126 GtkWidget *keyboard_widget;
128 GtkWidget *tooltip_widget;
129 GdkWindow *toplevel_window;
133 GdkWindow *last_window;
136 guint browse_mode_timeout_id;
138 GdkRectangle tip_area;
140 guint browse_mode_enabled : 1;
141 guint keyboard_mode_enabled : 1;
142 guint tip_area_set : 1;
143 guint custom_was_reset : 1;
146 struct _GtkTooltipClass
148 GObjectClass parent_class;
151 #define GTK_TOOLTIP_VISIBLE(tooltip) ((tooltip)->current_window && gtk_widget_get_visible (GTK_WIDGET((tooltip)->current_window)))
154 static void gtk_tooltip_class_init (GtkTooltipClass *klass);
155 static void gtk_tooltip_init (GtkTooltip *tooltip);
156 static void gtk_tooltip_dispose (GObject *object);
158 static gboolean gtk_tooltip_paint_window (GtkTooltip *tooltip,
160 static void gtk_tooltip_window_hide (GtkWidget *widget,
162 static void gtk_tooltip_display_closed (GdkDisplay *display,
164 GtkTooltip *tooltip);
165 static void gtk_tooltip_set_last_window (GtkTooltip *tooltip,
169 G_DEFINE_TYPE (GtkTooltip, gtk_tooltip, G_TYPE_OBJECT);
172 gtk_tooltip_class_init (GtkTooltipClass *klass)
174 GObjectClass *object_class;
176 object_class = G_OBJECT_CLASS (klass);
178 object_class->dispose = gtk_tooltip_dispose;
182 gtk_tooltip_init (GtkTooltip *tooltip)
184 GtkStyleContext *context;
190 tooltip->timeout_id = 0;
191 tooltip->browse_mode_timeout_id = 0;
193 tooltip->browse_mode_enabled = FALSE;
194 tooltip->keyboard_mode_enabled = FALSE;
196 tooltip->current_window = NULL;
197 tooltip->keyboard_widget = NULL;
199 tooltip->tooltip_widget = NULL;
200 tooltip->toplevel_window = NULL;
202 tooltip->last_window = NULL;
204 window = g_object_ref (gtk_window_new (GTK_WINDOW_POPUP));
205 gtk_window_set_type_hint (GTK_WINDOW (window), GDK_WINDOW_TYPE_HINT_TOOLTIP);
206 gtk_widget_set_app_paintable (window, TRUE);
207 gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
208 gtk_widget_set_name (window, "gtk-tooltip");
209 g_signal_connect (window, "hide",
210 G_CALLBACK (gtk_tooltip_window_hide), tooltip);
212 context = gtk_widget_get_style_context (window);
213 gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOOLTIP);
215 g_signal_connect_swapped (window, "draw",
216 G_CALLBACK (gtk_tooltip_paint_window), tooltip);
218 /* FIXME: don't hardcode the padding */
219 box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
220 gtk_widget_set_margin_left (box, 6);
221 gtk_widget_set_margin_right (box, 6);
222 gtk_widget_set_margin_top (box, 6);
223 gtk_widget_set_margin_bottom (box, 6);
224 gtk_container_add (GTK_CONTAINER (window), box);
225 gtk_widget_show (box);
227 image = gtk_image_new ();
228 gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 0);
230 label = gtk_label_new ("");
231 gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
232 gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
234 tooltip->window = window;
236 tooltip->image = image;
237 tooltip->label = label;
238 tooltip->custom_widget = NULL;
242 gtk_tooltip_dispose (GObject *object)
244 GtkTooltip *tooltip = GTK_TOOLTIP (object);
246 if (tooltip->timeout_id)
248 g_source_remove (tooltip->timeout_id);
249 tooltip->timeout_id = 0;
252 if (tooltip->browse_mode_timeout_id)
254 g_source_remove (tooltip->browse_mode_timeout_id);
255 tooltip->browse_mode_timeout_id = 0;
258 gtk_tooltip_set_custom (tooltip, NULL);
259 gtk_tooltip_set_last_window (tooltip, NULL);
265 display = gtk_widget_get_display (tooltip->window);
266 g_signal_handlers_disconnect_by_func (display,
267 gtk_tooltip_display_closed,
269 gtk_widget_destroy (tooltip->window);
270 tooltip->window = NULL;
273 G_OBJECT_CLASS (gtk_tooltip_parent_class)->dispose (object);
279 * gtk_tooltip_set_markup:
280 * @tooltip: a #GtkTooltip
281 * @markup: (allow-none): a markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>) or %NULL
283 * Sets the text of the tooltip to be @markup, which is marked up
285 * linkend="PangoMarkupFormat">Pango text markup language</link>.
286 * If @markup is %NULL, the label will be hidden.
291 gtk_tooltip_set_markup (GtkTooltip *tooltip,
294 g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
296 gtk_label_set_markup (GTK_LABEL (tooltip->label), markup);
299 gtk_widget_show (tooltip->label);
301 gtk_widget_hide (tooltip->label);
305 * gtk_tooltip_set_text:
306 * @tooltip: a #GtkTooltip
307 * @text: (allow-none): a text string or %NULL
309 * Sets the text of the tooltip to be @text. If @text is %NULL, the label
310 * will be hidden. See also gtk_tooltip_set_markup().
315 gtk_tooltip_set_text (GtkTooltip *tooltip,
318 g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
320 gtk_label_set_text (GTK_LABEL (tooltip->label), text);
323 gtk_widget_show (tooltip->label);
325 gtk_widget_hide (tooltip->label);
329 * gtk_tooltip_set_icon:
330 * @tooltip: a #GtkTooltip
331 * @pixbuf: (allow-none): a #GdkPixbuf, or %NULL
333 * Sets the icon of the tooltip (which is in front of the text) to be
334 * @pixbuf. If @pixbuf is %NULL, the image will be hidden.
339 gtk_tooltip_set_icon (GtkTooltip *tooltip,
342 g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
344 g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
346 gtk_image_set_from_pixbuf (GTK_IMAGE (tooltip->image), pixbuf);
349 gtk_widget_show (tooltip->image);
351 gtk_widget_hide (tooltip->image);
355 * gtk_tooltip_set_icon_from_stock:
356 * @tooltip: a #GtkTooltip
357 * @stock_id: (allow-none): a stock id, or %NULL
358 * @size: (type int): a stock icon size
360 * Sets the icon of the tooltip (which is in front of the text) to be
361 * the stock item indicated by @stock_id with the size indicated
362 * by @size. If @stock_id is %NULL, the image will be hidden.
367 gtk_tooltip_set_icon_from_stock (GtkTooltip *tooltip,
368 const gchar *stock_id,
371 g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
373 gtk_image_set_from_stock (GTK_IMAGE (tooltip->image), stock_id, size);
376 gtk_widget_show (tooltip->image);
378 gtk_widget_hide (tooltip->image);
382 * gtk_tooltip_set_icon_from_icon_name:
383 * @tooltip: a #GtkTooltip
384 * @icon_name: (allow-none): an icon name, or %NULL
385 * @size: (type int): a stock icon size
387 * Sets the icon of the tooltip (which is in front of the text) to be
388 * the icon indicated by @icon_name with the size indicated
389 * by @size. If @icon_name is %NULL, the image will be hidden.
394 gtk_tooltip_set_icon_from_icon_name (GtkTooltip *tooltip,
395 const gchar *icon_name,
398 g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
400 gtk_image_set_from_icon_name (GTK_IMAGE (tooltip->image), icon_name, size);
403 gtk_widget_show (tooltip->image);
405 gtk_widget_hide (tooltip->image);
409 * gtk_tooltip_set_icon_from_gicon:
410 * @tooltip: a #GtkTooltip
411 * @gicon: (allow-none): a #GIcon representing the icon, or %NULL
412 * @size: (type int): a stock icon size
414 * Sets the icon of the tooltip (which is in front of the text)
415 * to be the icon indicated by @gicon with the size indicated
416 * by @size. If @gicon is %NULL, the image will be hidden.
421 gtk_tooltip_set_icon_from_gicon (GtkTooltip *tooltip,
425 g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
427 gtk_image_set_from_gicon (GTK_IMAGE (tooltip->image), gicon, size);
430 gtk_widget_show (tooltip->image);
432 gtk_widget_hide (tooltip->image);
436 * gtk_tooltip_set_custom:
437 * @tooltip: a #GtkTooltip
438 * @custom_widget: (allow-none): a #GtkWidget, or %NULL to unset the old custom widget.
440 * Replaces the widget packed into the tooltip with
441 * @custom_widget. @custom_widget does not get destroyed when the tooltip goes
443 * By default a box with a #GtkImage and #GtkLabel is embedded in
444 * the tooltip, which can be configured using gtk_tooltip_set_markup()
445 * and gtk_tooltip_set_icon().
451 gtk_tooltip_set_custom (GtkTooltip *tooltip,
452 GtkWidget *custom_widget)
454 g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
456 g_return_if_fail (GTK_IS_WIDGET (custom_widget));
458 /* The custom widget has been updated from the query-tooltip
459 * callback, so we do not want to reset the custom widget later on.
461 tooltip->custom_was_reset = TRUE;
463 /* No need to do anything if the custom widget stays the same */
464 if (tooltip->custom_widget == custom_widget)
467 if (tooltip->custom_widget)
469 GtkWidget *custom = tooltip->custom_widget;
470 /* Note: We must reset tooltip->custom_widget first,
471 * since gtk_container_remove() will recurse into
472 * gtk_tooltip_set_custom()
474 tooltip->custom_widget = NULL;
475 gtk_container_remove (GTK_CONTAINER (tooltip->box), custom);
476 g_object_unref (custom);
481 tooltip->custom_widget = g_object_ref (custom_widget);
483 gtk_container_add (GTK_CONTAINER (tooltip->box), custom_widget);
484 gtk_widget_show (custom_widget);
489 * gtk_tooltip_set_tip_area:
490 * @tooltip: a #GtkTooltip
491 * @rect: a #GdkRectangle
493 * Sets the area of the widget, where the contents of this tooltip apply,
494 * to be @rect (in widget coordinates). This is especially useful for
495 * properly setting tooltips on #GtkTreeView rows and cells, #GtkIconViews,
498 * For setting tooltips on #GtkTreeView, please refer to the convenience
499 * functions for this: gtk_tree_view_set_tooltip_row() and
500 * gtk_tree_view_set_tooltip_cell().
505 gtk_tooltip_set_tip_area (GtkTooltip *tooltip,
506 const GdkRectangle *rect)
508 g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
511 tooltip->tip_area_set = FALSE;
514 tooltip->tip_area_set = TRUE;
515 tooltip->tip_area = *rect;
520 * gtk_tooltip_trigger_tooltip_query:
521 * @display: a #GdkDisplay
523 * Triggers a new tooltip query on @display, in order to update the current
524 * visible tooltip, or to show/hide the current tooltip. This function is
525 * useful to call when, for example, the state of the widget changed by a
531 gtk_tooltip_trigger_tooltip_query (GdkDisplay *display)
538 /* Trigger logic as if the mouse moved */
539 device = gdk_device_manager_get_client_pointer (gdk_display_get_device_manager (display));
540 window = gdk_device_get_window_at_position (device, &x, &y);
544 event.type = GDK_MOTION_NOTIFY;
545 event.motion.window = window;
548 event.motion.is_hint = FALSE;
550 gdk_window_get_root_coords (window, x, y, &x, &y);
551 event.motion.x_root = x;
552 event.motion.y_root = y;
554 _gtk_tooltip_handle_event (&event);
557 /* private functions */
560 gtk_tooltip_reset (GtkTooltip *tooltip)
562 gtk_tooltip_set_markup (tooltip, NULL);
563 gtk_tooltip_set_icon (tooltip, NULL);
564 gtk_tooltip_set_tip_area (tooltip, NULL);
566 /* See if the custom widget is again set from the query-tooltip
569 tooltip->custom_was_reset = FALSE;
573 gtk_tooltip_paint_window (GtkTooltip *tooltip,
576 GtkStyleContext *context;
578 context = gtk_widget_get_style_context (tooltip->window);
580 gtk_render_background (context, cr, 0, 0,
581 gtk_widget_get_allocated_width (tooltip->window),
582 gtk_widget_get_allocated_height (tooltip->window));
583 gtk_render_frame (context, cr, 0, 0,
584 gtk_widget_get_allocated_width (tooltip->window),
585 gtk_widget_get_allocated_height (tooltip->window));
591 gtk_tooltip_window_hide (GtkWidget *widget,
594 GtkTooltip *tooltip = GTK_TOOLTIP (user_data);
596 gtk_tooltip_set_custom (tooltip, NULL);
599 /* event handling, etc */
604 GtkWidget *container;
611 child_location_foreach (GtkWidget *child,
614 GtkAllocation child_allocation;
616 struct ChildLocation *child_loc = data;
618 /* Ignore invisible widgets */
619 if (!gtk_widget_is_drawable (child))
622 gtk_widget_get_allocation (child, &child_allocation);
627 /* (child_loc->x, child_loc->y) are relative to
628 * child_loc->container's allocation.
631 if (!child_loc->child &&
632 gtk_widget_translate_coordinates (child_loc->container, child,
633 child_loc->x, child_loc->y,
637 g_print ("candidate: %s alloc=[(%d,%d) %dx%d] (%d, %d)->(%d, %d)\n",
638 gtk_widget_get_name (child),
641 child_allocation.width,
642 child_allocation.height,
643 child_loc->x, child_loc->y,
645 #endif /* DEBUG_TOOLTIP */
647 /* (x, y) relative to child's allocation. */
648 if (x >= 0 && x < child_allocation.width
649 && y >= 0 && y < child_allocation.height)
651 if (GTK_IS_CONTAINER (child))
653 struct ChildLocation tmp = { NULL, NULL, 0, 0 };
655 /* Take (x, y) relative the child's allocation and
660 tmp.container = child;
662 gtk_container_forall (GTK_CONTAINER (child),
663 child_location_foreach, &tmp);
666 child_loc->child = tmp.child;
668 child_loc->child = child;
671 child_loc->child = child;
676 /* Translates coordinates from dest_widget->window relative (src_x, src_y),
677 * to allocation relative (dest_x, dest_y) of dest_widget.
680 window_to_alloc (GtkWidget *dest_widget,
686 GtkAllocation allocation;
688 gtk_widget_get_allocation (dest_widget, &allocation);
690 /* Translate from window relative to allocation relative */
691 if (gtk_widget_get_has_window (dest_widget) &&
692 gtk_widget_get_parent (dest_widget))
695 gdk_window_get_position (gtk_widget_get_window (dest_widget),
698 /* Offset coordinates if widget->window is smaller than
699 * widget->allocation.
701 src_x += wx - allocation.x;
702 src_y += wy - allocation.y;
706 src_x -= allocation.x;
707 src_y -= allocation.y;
716 /* Translates coordinates from window relative (x, y) to
717 * allocation relative (x, y) of the returned widget.
720 _gtk_widget_find_at_coords (GdkWindow *window,
726 GtkWidget *event_widget;
727 struct ChildLocation child_loc = { NULL, NULL, 0, 0 };
729 g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
731 gdk_window_get_user_data (window, (void **)&event_widget);
737 g_print ("event window %p (belonging to %p (%s)) (%d, %d)\n",
738 window, event_widget, gtk_widget_get_name (event_widget),
742 /* Coordinates are relative to event window */
743 child_loc.x = window_x;
744 child_loc.y = window_y;
746 /* We go down the window hierarchy to the widget->window,
747 * coordinates stay relative to the current window.
748 * We end up with window == widget->window, coordinates relative to that.
750 while (window && window != gtk_widget_get_window (event_widget))
754 gdk_window_coords_to_parent (window,
755 child_loc.x, child_loc.y,
760 window = gdk_window_get_effective_parent (window);
763 /* Failing to find widget->window can happen for e.g. a detached handle box;
764 * chaining ::query-tooltip up to its parent probably makes little sense,
765 * and users better implement tooltips on handle_box->child.
766 * so we simply ignore the event for tooltips here.
771 /* Convert the window relative coordinates to allocation
772 * relative coordinates.
774 window_to_alloc (event_widget,
775 child_loc.x, child_loc.y,
776 &child_loc.x, &child_loc.y);
778 if (GTK_IS_CONTAINER (event_widget))
780 GtkWidget *container = event_widget;
782 child_loc.container = event_widget;
783 child_loc.child = NULL;
785 gtk_container_forall (GTK_CONTAINER (event_widget),
786 child_location_foreach, &child_loc);
788 /* Here we have a widget, with coordinates relative to
789 * child_loc.container's allocation.
793 event_widget = child_loc.child;
794 else if (child_loc.container)
795 event_widget = child_loc.container;
797 /* Translate to event_widget's allocation */
798 gtk_widget_translate_coordinates (container, event_widget,
799 child_loc.x, child_loc.y,
800 &child_loc.x, &child_loc.y);
803 /* We return (x, y) relative to the allocation of event_widget. */
805 *widget_x = child_loc.x;
807 *widget_y = child_loc.y;
812 /* Ignores (x, y) on input, translates event coordinates to
813 * allocation relative (x, y) of the returned widget.
816 find_topmost_widget_coords_from_event (GdkEvent *event,
820 GtkAllocation allocation;
825 gdk_event_get_coords (event, &dx, &dy);
827 /* Returns coordinates relative to tmp's allocation. */
828 tmp = _gtk_widget_find_at_coords (event->any.window, dx, dy, &tx, &ty);
833 /* Make sure the pointer can actually be on the widget returned. */
834 gtk_widget_get_allocation (tmp, &allocation);
835 if (tx < 0 || tx >= allocation.width ||
836 ty < 0 || ty >= allocation.height)
848 tooltip_browse_mode_expired (gpointer data)
852 tooltip = GTK_TOOLTIP (data);
854 tooltip->browse_mode_enabled = FALSE;
855 tooltip->browse_mode_timeout_id = 0;
857 /* destroy tooltip */
858 g_object_set_data (G_OBJECT (gtk_widget_get_display (tooltip->window)),
859 "gdk-display-current-tooltip", NULL);
865 gtk_tooltip_display_closed (GdkDisplay *display,
869 g_object_set_data (G_OBJECT (display), "gdk-display-current-tooltip", NULL);
873 gtk_tooltip_set_last_window (GtkTooltip *tooltip,
876 if (tooltip->last_window == window)
879 if (tooltip->last_window)
880 g_object_remove_weak_pointer (G_OBJECT (tooltip->last_window),
881 (gpointer *) &tooltip->last_window);
883 tooltip->last_window = window;
886 g_object_add_weak_pointer (G_OBJECT (tooltip->last_window),
887 (gpointer *) &tooltip->last_window);
891 gtk_tooltip_run_requery (GtkWidget **widget,
896 gboolean has_tooltip = FALSE;
897 gboolean return_value = FALSE;
899 gtk_tooltip_reset (tooltip);
903 g_object_get (*widget,
904 "has-tooltip", &has_tooltip,
908 g_signal_emit_by_name (*widget,
911 tooltip->keyboard_mode_enabled,
917 GtkWidget *parent = gtk_widget_get_parent (*widget);
920 gtk_widget_translate_coordinates (*widget, parent, *x, *y, x, y);
929 /* If the custom widget was not reset in the query-tooltip
930 * callback, we clear it here.
932 if (!tooltip->custom_was_reset)
933 gtk_tooltip_set_custom (tooltip, NULL);
939 get_bounding_box (GtkWidget *widget,
940 GdkRectangle *bounds)
942 GtkAllocation allocation;
951 window = gtk_widget_get_parent_window (widget);
953 window = gtk_widget_get_window (widget);
955 gtk_widget_get_allocation (widget, &allocation);
958 w = allocation.width;
959 h = allocation.height;
961 gdk_window_get_root_coords (window, x, y, &x1, &y1);
962 gdk_window_get_root_coords (window, x + w, y, &x2, &y2);
963 gdk_window_get_root_coords (window, x, y + h, &x3, &y3);
964 gdk_window_get_root_coords (window, x + w, y + h, &x4, &y4);
966 #define MIN4(a,b,c,d) MIN(MIN(a,b),MIN(c,d))
967 #define MAX4(a,b,c,d) MAX(MAX(a,b),MAX(c,d))
969 bounds->x = floor (MIN4 (x1, x2, x3, x4));
970 bounds->y = floor (MIN4 (y1, y2, y3, y4));
971 bounds->width = ceil (MAX4 (x1, x2, x3, x4)) - bounds->x;
972 bounds->height = ceil (MAX4 (y1, y2, y3, y4)) - bounds->y;
976 gtk_tooltip_position (GtkTooltip *tooltip,
978 GtkWidget *new_tooltip_widget)
980 gint x, y, width, height;
983 GdkRectangle monitor;
987 #define MAX_DISTANCE 32
989 gtk_widget_realize (GTK_WIDGET (tooltip->current_window));
991 tooltip->tooltip_widget = new_tooltip_widget;
993 screen = gtk_widget_get_screen (new_tooltip_widget);
995 width = gtk_widget_get_allocated_width (GTK_WIDGET (tooltip->current_window));
996 height = gtk_widget_get_allocated_height (GTK_WIDGET (tooltip->current_window));
998 monitor_num = gdk_screen_get_monitor_at_point (screen,
1001 gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
1003 get_bounding_box (new_tooltip_widget, &bounds);
1005 /* Position the tooltip */
1007 cursor_size = gdk_display_get_default_cursor_size (display);
1010 x = bounds.x + bounds.width / 2 - width / 2;
1011 y = bounds.y + bounds.height + 4;
1013 if (y + height <= monitor.y + monitor.height)
1015 if (tooltip->keyboard_mode_enabled)
1018 if (y <= tooltip->last_y + cursor_size + MAX_DISTANCE)
1020 if (tooltip->last_x + cursor_size + MAX_DISTANCE < x)
1021 x = tooltip->last_x + cursor_size + MAX_DISTANCE;
1022 else if (x + width < tooltip->last_x - MAX_DISTANCE)
1023 x = tooltip->last_x - MAX_DISTANCE - width;
1030 x = bounds.x + bounds.width / 2 - width / 2;
1031 y = bounds.y - height - 4;
1035 if (tooltip->keyboard_mode_enabled)
1038 if (y + height >= tooltip->last_y - MAX_DISTANCE)
1040 if (tooltip->last_x + cursor_size + MAX_DISTANCE < x)
1041 x = tooltip->last_x + cursor_size + MAX_DISTANCE;
1042 else if (x + width < tooltip->last_x - MAX_DISTANCE)
1043 x = tooltip->last_x - MAX_DISTANCE - width;
1049 /* Try right FIXME: flip on rtl ? */
1050 x = bounds.x + bounds.width + 4;
1051 y = bounds.y + bounds.height / 2 - height / 2;
1053 if (x + width <= monitor.x + monitor.width)
1055 if (tooltip->keyboard_mode_enabled)
1058 if (x <= tooltip->last_x + cursor_size + MAX_DISTANCE)
1060 if (tooltip->last_y + cursor_size + MAX_DISTANCE < y)
1061 y = tooltip->last_y + cursor_size + MAX_DISTANCE;
1062 else if (y + height < tooltip->last_y - MAX_DISTANCE)
1063 y = tooltip->last_y - MAX_DISTANCE - height;
1069 /* Try left FIXME: flip on rtl ? */
1070 x = bounds.x - width - 4;
1071 y = bounds.y + bounds.height / 2 - height / 2;
1075 if (tooltip->keyboard_mode_enabled)
1078 if (x + width >= tooltip->last_x - MAX_DISTANCE)
1080 if (tooltip->last_y + cursor_size + MAX_DISTANCE < y)
1081 y = tooltip->last_y + cursor_size + MAX_DISTANCE;
1082 else if (y + height < tooltip->last_y - MAX_DISTANCE)
1083 y = tooltip->last_y - MAX_DISTANCE - height;
1090 if (tooltip->keyboard_mode_enabled)
1092 x = bounds.x + bounds.width / 2 - width / 2;
1093 y = bounds.y + bounds.height + 4;
1098 x = tooltip->last_x + cursor_size * 3 / 4;
1099 y = tooltip->last_y + cursor_size * 3 / 4;
1104 if (tooltip->current_window)
1106 if (x + width > monitor.x + monitor.width)
1107 x -= x - (monitor.x + monitor.width) + width;
1108 else if (x < monitor.x)
1111 if (y + height > monitor.y + monitor.height)
1112 y -= y - (monitor.y + monitor.height) + height;
1113 else if (y < monitor.y)
1116 if (!tooltip->keyboard_mode_enabled)
1118 /* don't pop up under the pointer */
1119 if (x <= tooltip->last_x && tooltip->last_x < x + width &&
1120 y <= tooltip->last_y && tooltip->last_y < y + height)
1121 y = tooltip->last_y - height - 2;
1124 gtk_window_move (GTK_WINDOW (tooltip->current_window), x, y);
1125 gtk_widget_show (GTK_WIDGET (tooltip->current_window));
1130 gtk_tooltip_show_tooltip (GdkDisplay *display)
1136 GtkWidget *tooltip_widget;
1137 GtkTooltip *tooltip;
1138 gboolean has_tooltip;
1139 gboolean return_value = FALSE;
1141 tooltip = g_object_get_data (G_OBJECT (display),
1142 "gdk-display-current-tooltip");
1144 if (tooltip->keyboard_mode_enabled)
1147 tooltip_widget = tooltip->keyboard_widget;
1153 window = tooltip->last_window;
1155 if (!GDK_IS_WINDOW (window))
1158 gdk_window_get_pointer (window, &x, &y, NULL);
1160 gdk_window_get_root_coords (window, x, y, &tx, &ty);
1161 tooltip->last_x = tx;
1162 tooltip->last_y = ty;
1164 tooltip_widget = _gtk_widget_find_at_coords (window, x, y, &x, &y);
1167 if (!tooltip_widget)
1170 g_object_get (tooltip_widget, "has-tooltip", &has_tooltip, NULL);
1172 return_value = gtk_tooltip_run_requery (&tooltip_widget, tooltip, &x, &y);
1176 if (!tooltip->current_window)
1178 if (gtk_widget_get_tooltip_window (tooltip_widget))
1179 tooltip->current_window = gtk_widget_get_tooltip_window (tooltip_widget);
1181 tooltip->current_window = GTK_WINDOW (GTK_TOOLTIP (tooltip)->window);
1184 screen = gtk_widget_get_screen (tooltip_widget);
1186 /* FIXME: should use tooltip->current_window iso tooltip->window */
1187 if (screen != gtk_widget_get_screen (tooltip->window))
1189 g_signal_handlers_disconnect_by_func (display,
1190 gtk_tooltip_display_closed,
1193 gtk_window_set_screen (GTK_WINDOW (tooltip->window), screen);
1195 g_signal_connect (display, "closed",
1196 G_CALLBACK (gtk_tooltip_display_closed), tooltip);
1199 gtk_tooltip_position (tooltip, display, tooltip_widget);
1201 /* Now a tooltip is visible again on the display, make sure browse
1204 tooltip->browse_mode_enabled = TRUE;
1205 if (tooltip->browse_mode_timeout_id)
1207 g_source_remove (tooltip->browse_mode_timeout_id);
1208 tooltip->browse_mode_timeout_id = 0;
1213 gtk_tooltip_hide_tooltip (GtkTooltip *tooltip)
1218 if (tooltip->timeout_id)
1220 g_source_remove (tooltip->timeout_id);
1221 tooltip->timeout_id = 0;
1224 if (!GTK_TOOLTIP_VISIBLE (tooltip))
1227 tooltip->tooltip_widget = NULL;
1229 if (!tooltip->keyboard_mode_enabled)
1232 GtkSettings *settings;
1234 settings = gtk_widget_get_settings (GTK_WIDGET (tooltip->window));
1236 g_object_get (settings,
1237 "gtk-tooltip-browse-mode-timeout", &timeout,
1240 /* The tooltip is gone, after (by default, should be configurable) 500ms
1241 * we want to turn off browse mode
1243 if (!tooltip->browse_mode_timeout_id)
1244 tooltip->browse_mode_timeout_id =
1245 gdk_threads_add_timeout_full (0, timeout,
1246 tooltip_browse_mode_expired,
1247 g_object_ref (tooltip),
1252 if (tooltip->browse_mode_timeout_id)
1254 g_source_remove (tooltip->browse_mode_timeout_id);
1255 tooltip->browse_mode_timeout_id = 0;
1259 if (tooltip->current_window)
1261 gtk_widget_hide (GTK_WIDGET (tooltip->current_window));
1262 tooltip->current_window = NULL;
1267 tooltip_popup_timeout (gpointer data)
1269 GdkDisplay *display;
1270 GtkTooltip *tooltip;
1272 display = GDK_DISPLAY (data);
1273 tooltip = g_object_get_data (G_OBJECT (display),
1274 "gdk-display-current-tooltip");
1276 /* This usually does not happen. However, it does occur in language
1277 * bindings were reference counting of objects behaves differently.
1282 gtk_tooltip_show_tooltip (display);
1284 tooltip->timeout_id = 0;
1290 gtk_tooltip_start_delay (GdkDisplay *display)
1293 GtkTooltip *tooltip;
1294 GtkSettings *settings;
1296 tooltip = g_object_get_data (G_OBJECT (display),
1297 "gdk-display-current-tooltip");
1299 if (!tooltip || GTK_TOOLTIP_VISIBLE (tooltip))
1302 if (tooltip->timeout_id)
1303 g_source_remove (tooltip->timeout_id);
1305 settings = gtk_widget_get_settings (GTK_WIDGET (tooltip->window));
1307 if (tooltip->browse_mode_enabled)
1308 g_object_get (settings, "gtk-tooltip-browse-timeout", &timeout, NULL);
1310 g_object_get (settings, "gtk-tooltip-timeout", &timeout, NULL);
1312 tooltip->timeout_id = gdk_threads_add_timeout_full (0, timeout,
1313 tooltip_popup_timeout,
1314 g_object_ref (display),
1319 _gtk_tooltip_focus_in (GtkWidget *widget)
1322 gboolean return_value = FALSE;
1323 GdkDisplay *display;
1324 GtkTooltip *tooltip;
1327 /* Get current tooltip for this display */
1328 display = gtk_widget_get_display (widget);
1329 tooltip = g_object_get_data (G_OBJECT (display),
1330 "gdk-display-current-tooltip");
1332 /* Check if keyboard mode is enabled at this moment */
1333 if (!tooltip || !tooltip->keyboard_mode_enabled)
1336 device = gtk_get_current_event_device ();
1338 if (device && gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
1339 device = gdk_device_get_associated_device (device);
1341 /* This function should be called by either a focus in event,
1342 * or a key binding. In either case there should be a device.
1347 if (tooltip->keyboard_widget)
1348 g_object_unref (tooltip->keyboard_widget);
1350 tooltip->keyboard_widget = g_object_ref (widget);
1352 gdk_window_get_device_position (gtk_widget_get_window (widget),
1353 device, &x, &y, NULL);
1355 return_value = gtk_tooltip_run_requery (&widget, tooltip, &x, &y);
1358 gtk_tooltip_hide_tooltip (tooltip);
1362 if (!tooltip->current_window)
1364 if (gtk_widget_get_tooltip_window (widget))
1365 tooltip->current_window = gtk_widget_get_tooltip_window (widget);
1367 tooltip->current_window = GTK_WINDOW (GTK_TOOLTIP (tooltip)->window);
1370 gtk_tooltip_show_tooltip (display);
1374 _gtk_tooltip_focus_out (GtkWidget *widget)
1376 GdkDisplay *display;
1377 GtkTooltip *tooltip;
1379 /* Get current tooltip for this display */
1380 display = gtk_widget_get_display (widget);
1381 tooltip = g_object_get_data (G_OBJECT (display),
1382 "gdk-display-current-tooltip");
1384 if (!tooltip || !tooltip->keyboard_mode_enabled)
1387 if (tooltip->keyboard_widget)
1389 g_object_unref (tooltip->keyboard_widget);
1390 tooltip->keyboard_widget = NULL;
1393 gtk_tooltip_hide_tooltip (tooltip);
1397 _gtk_tooltip_toggle_keyboard_mode (GtkWidget *widget)
1399 GdkDisplay *display;
1400 GtkTooltip *tooltip;
1402 display = gtk_widget_get_display (widget);
1403 tooltip = g_object_get_data (G_OBJECT (display),
1404 "gdk-display-current-tooltip");
1408 tooltip = g_object_new (GTK_TYPE_TOOLTIP, NULL);
1409 g_object_set_data_full (G_OBJECT (display),
1410 "gdk-display-current-tooltip",
1411 tooltip, g_object_unref);
1412 g_signal_connect (display, "closed",
1413 G_CALLBACK (gtk_tooltip_display_closed),
1417 tooltip->keyboard_mode_enabled ^= 1;
1419 if (tooltip->keyboard_mode_enabled)
1421 tooltip->keyboard_widget = g_object_ref (widget);
1422 _gtk_tooltip_focus_in (widget);
1426 if (tooltip->keyboard_widget)
1428 g_object_unref (tooltip->keyboard_widget);
1429 tooltip->keyboard_widget = NULL;
1432 gtk_tooltip_hide_tooltip (tooltip);
1437 _gtk_tooltip_hide (GtkWidget *widget)
1439 GtkWidget *toplevel;
1440 GdkDisplay *display;
1441 GtkTooltip *tooltip;
1443 display = gtk_widget_get_display (widget);
1444 tooltip = g_object_get_data (G_OBJECT (display),
1445 "gdk-display-current-tooltip");
1447 if (!tooltip || !GTK_TOOLTIP_VISIBLE (tooltip) || !tooltip->tooltip_widget)
1450 toplevel = gtk_widget_get_toplevel (widget);
1452 if (widget == tooltip->tooltip_widget
1453 || gtk_widget_get_window (toplevel) == tooltip->toplevel_window)
1454 gtk_tooltip_hide_tooltip (tooltip);
1458 tooltips_enabled (GdkWindow *window)
1461 gboolean touchscreen;
1463 GtkSettings *settings;
1465 screen = gdk_window_get_screen (window);
1466 settings = gtk_settings_get_for_screen (screen);
1468 g_object_get (settings,
1469 "gtk-touchscreen-mode", &touchscreen,
1470 "gtk-enable-tooltips", &enabled,
1473 return (!touchscreen && enabled);
1477 _gtk_tooltip_handle_event (GdkEvent *event)
1480 gboolean return_value = FALSE;
1481 GtkWidget *has_tooltip_widget = NULL;
1482 GdkDisplay *display;
1483 GtkTooltip *current_tooltip;
1485 if (!tooltips_enabled (event->any.window))
1488 /* Returns coordinates relative to has_tooltip_widget's allocation. */
1489 has_tooltip_widget = find_topmost_widget_coords_from_event (event, &x, &y);
1490 display = gdk_window_get_display (event->any.window);
1491 current_tooltip = g_object_get_data (G_OBJECT (display),
1492 "gdk-display-current-tooltip");
1494 if (current_tooltip)
1496 gtk_tooltip_set_last_window (current_tooltip, event->any.window);
1499 if (current_tooltip && current_tooltip->keyboard_mode_enabled)
1501 has_tooltip_widget = current_tooltip->keyboard_widget;
1502 if (!has_tooltip_widget)
1505 return_value = gtk_tooltip_run_requery (&has_tooltip_widget,
1510 gtk_tooltip_hide_tooltip (current_tooltip);
1512 gtk_tooltip_start_delay (display);
1517 #ifdef DEBUG_TOOLTIP
1518 if (has_tooltip_widget)
1519 g_print ("%p (%s) at (%d, %d) %dx%d pointer: (%d, %d)\n",
1520 has_tooltip_widget, gtk_widget_get_name (has_tooltip_widget),
1521 has_tooltip_widget->allocation.x,
1522 has_tooltip_widget->allocation.y,
1523 has_tooltip_widget->allocation.width,
1524 has_tooltip_widget->allocation.height,
1526 #endif /* DEBUG_TOOLTIP */
1528 /* Always poll for a next motion event */
1529 gdk_event_request_motions (&event->motion);
1531 /* Hide the tooltip when there's no new tooltip widget */
1532 if (!has_tooltip_widget)
1534 if (current_tooltip)
1535 gtk_tooltip_hide_tooltip (current_tooltip);
1540 switch (event->type)
1542 case GDK_BUTTON_PRESS:
1543 case GDK_2BUTTON_PRESS:
1544 case GDK_3BUTTON_PRESS:
1546 case GDK_DRAG_ENTER:
1547 case GDK_GRAB_BROKEN:
1549 gtk_tooltip_hide_tooltip (current_tooltip);
1552 case GDK_MOTION_NOTIFY:
1553 case GDK_ENTER_NOTIFY:
1554 case GDK_LEAVE_NOTIFY:
1555 if (current_tooltip)
1557 gboolean tip_area_set;
1558 GdkRectangle tip_area;
1559 gboolean hide_tooltip;
1561 tip_area_set = current_tooltip->tip_area_set;
1562 tip_area = current_tooltip->tip_area;
1564 return_value = gtk_tooltip_run_requery (&has_tooltip_widget,
1568 /* Requested to be hidden? */
1569 hide_tooltip = !return_value;
1571 /* Leave notify should override the query function */
1572 hide_tooltip = (event->type == GDK_LEAVE_NOTIFY);
1574 /* Is the pointer above another widget now? */
1575 if (GTK_TOOLTIP_VISIBLE (current_tooltip))
1576 hide_tooltip |= has_tooltip_widget != current_tooltip->tooltip_widget;
1578 /* Did the pointer move out of the previous "context area"? */
1580 hide_tooltip |= (x <= tip_area.x
1581 || x >= tip_area.x + tip_area.width
1583 || y >= tip_area.y + tip_area.height);
1586 gtk_tooltip_hide_tooltip (current_tooltip);
1588 gtk_tooltip_start_delay (display);
1592 /* Need a new tooltip for this display */
1593 current_tooltip = g_object_new (GTK_TYPE_TOOLTIP, NULL);
1594 g_object_set_data_full (G_OBJECT (display),
1595 "gdk-display-current-tooltip",
1596 current_tooltip, g_object_unref);
1597 g_signal_connect (display, "closed",
1598 G_CALLBACK (gtk_tooltip_display_closed),
1601 gtk_tooltip_set_last_window (current_tooltip, event->any.window);
1603 gtk_tooltip_start_delay (display);