/* * Copyright (c) 2008-2009 Christian Hammond * Copyright (c) 2008-2009 David Trowbridge * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "config.h" #include #include "window.h" #include "highlightoverlay.h" #include "object-tree.h" #include "gtkstack.h" #include "gtkmain.h" #include "gtkwidgetprivate.h" #include "gtkgesturemultipress.h" #include "gtkeventcontrollermotion.h" #include "gtkeventcontrollerkey.h" #include "gtkroot.h" static GtkWidget * find_widget_at_pointer (GdkDevice *device) { GtkWidget *widget = NULL; GdkSurface *pointer_surface; pointer_surface = gdk_device_get_surface_at_position (device, NULL, NULL); if (pointer_surface) widget = gtk_root_get_for_surface (pointer_surface); if (widget) { double x, y; gdk_surface_get_device_position (gtk_widget_get_surface (widget), device, &x, &y, NULL); widget = gtk_widget_pick (widget, x, y, GTK_PICK_INSENSITIVE|GTK_PICK_NON_TARGETABLE); } return widget; } static void clear_flash (GtkInspectorWindow *iw) { if (iw->flash_overlay) { gtk_inspector_window_remove_overlay (iw, iw->flash_overlay); g_clear_object (&iw->flash_overlay); } } static void start_flash (GtkInspectorWindow *iw, GtkWidget *widget) { clear_flash (iw); iw->flash_count = 1; iw->flash_overlay = gtk_highlight_overlay_new (widget); gtk_inspector_window_add_overlay (iw, iw->flash_overlay); } static void select_widget (GtkInspectorWindow *iw, GtkWidget *widget) { GtkInspectorObjectTree *wt = GTK_INSPECTOR_OBJECT_TREE (iw->object_tree); iw->selected_widget = widget; gtk_inspector_object_tree_select_object (wt, G_OBJECT (widget)); } static void on_inspect_widget (GtkInspectorWindow *iw, GdkEvent *event) { GtkWidget *widget; gdk_surface_raise (gtk_widget_get_surface (GTK_WIDGET (iw))); clear_flash (iw); widget = find_widget_at_pointer (gdk_event_get_device (event)); if (widget) select_widget (iw, widget); } static void on_highlight_widget (GtkWidget *button, GdkEvent *event, GtkInspectorWindow *iw) { GtkWidget *widget; widget = find_widget_at_pointer (gdk_event_get_device (event)); if (widget == NULL) { /* This window isn't in-process. Ignore it. */ return; } if (gtk_widget_get_toplevel (widget) == GTK_WIDGET (iw)) { /* Don't hilight things in the inspector window */ return; } if (iw->flash_overlay && gtk_highlight_overlay_get_widget (GTK_HIGHLIGHT_OVERLAY (iw->flash_overlay)) == widget) { /* Already selected */ return; } clear_flash (iw); start_flash (iw, widget); } static void deemphasize_window (GtkWidget *window) { GdkDisplay *display; display = gtk_widget_get_display (window); if (gdk_display_is_composited (display)) { cairo_rectangle_int_t rect; cairo_region_t *region; gtk_widget_set_opacity (window, 0.3); rect.x = rect.y = rect.width = rect.height = 0; region = cairo_region_create_rectangle (&rect); gtk_widget_input_shape_combine_region (window, region); cairo_region_destroy (region); } else gdk_surface_lower (gtk_widget_get_surface (window)); } static void reemphasize_window (GtkWidget *window) { GdkDisplay *display; display = gtk_widget_get_display (window); if (gdk_display_is_composited (display)) { gtk_widget_set_opacity (window, 1.0); gtk_widget_input_shape_combine_region (window, NULL); } else gdk_surface_raise (gtk_widget_get_surface (window)); } static gboolean handle_event (GtkInspectorWindow *iw, GdkEvent *event); static void handle_button_event (GtkInspectorWindow *iw, GdkEvent *event) { g_signal_handlers_disconnect_by_func (iw, handle_event, NULL); reemphasize_window (GTK_WIDGET (iw)); on_inspect_widget (iw, event); } static void handle_motion_event (GtkInspectorWindow *iw, GdkEvent *event) { on_highlight_widget (NULL, event, iw); } static void handle_key_event (GtkInspectorWindow *iw, GdkEvent *event) { guint keyval = 0; gdk_event_get_keyval (event, &keyval); if (keyval == GDK_KEY_Escape) { g_signal_handlers_disconnect_by_func (iw, handle_event, NULL); reemphasize_window (GTK_WIDGET (iw)); clear_flash (iw); } } static gboolean handle_event (GtkInspectorWindow *iw, GdkEvent *event) { switch ((int)gdk_event_get_event_type (event)) { case GDK_KEY_PRESS: case GDK_KEY_RELEASE: handle_key_event (iw, event); break; case GDK_MOTION_NOTIFY: handle_motion_event (iw, event); break; case GDK_BUTTON_PRESS: case GDK_BUTTON_RELEASE: handle_button_event (iw, event); break; default:; } return TRUE; } void gtk_inspector_on_inspect (GtkWidget *button, GtkInspectorWindow *iw) { g_signal_connect (iw, "event", G_CALLBACK (handle_event), NULL); deemphasize_window (GTK_WIDGET (iw)); } static gboolean on_flash_timeout (GtkInspectorWindow *iw) { iw->flash_count++; gtk_highlight_overlay_set_color (GTK_HIGHLIGHT_OVERLAY (iw->flash_overlay), &(GdkRGBA) { 0.0, 0.0, 1.0, (iw && iw->flash_count % 2 == 0) ? 0.0 : 0.2 }); if (iw->flash_count == 6) { clear_flash (iw); iw->flash_cnx = 0; return G_SOURCE_REMOVE; } return G_SOURCE_CONTINUE; } void gtk_inspector_flash_widget (GtkInspectorWindow *iw, GtkWidget *widget) { if (!gtk_widget_get_visible (widget) || !gtk_widget_get_mapped (widget)) return; if (iw->flash_cnx != 0) { g_source_remove (iw->flash_cnx); iw->flash_cnx = 0; } start_flash (iw, widget); iw->flash_cnx = g_timeout_add (150, (GSourceFunc) on_flash_timeout, iw); } void gtk_inspector_window_select_widget_under_pointer (GtkInspectorWindow *iw) { GdkDisplay *display; GdkDevice *device; GtkWidget *widget; display = gdk_display_get_default (); device = gdk_seat_get_pointer (gdk_display_get_default_seat (display)); widget = find_widget_at_pointer (device); if (widget) select_widget (iw, widget); } /* vim: set et sw=2 ts=2: */