gtk2/gtk/inspector/inspect-button.c
Matthias Clasen fd58b116cf inspector: Make picking work again
We used to either make the inspector see- and click-thru
or lower it, but sadly translucency broke after we
removed surface opacity, and lowering doesn't work
on Wayland. So just hide the inspector window while
we are picking.

Fixes: #2528
2020-03-21 09:42:58 -04:00

245 lines
6.2 KiB
C

/*
* 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 <glib/gi18n-lib.h>
#include "window.h"
#include "highlightoverlay.h"
#include "object-tree.h"
#include "gtkstack.h"
#include "gtkmain.h"
#include "gtkwidgetprivate.h"
#include "gtkeventcontrollermotion.h"
#include "gtkeventcontrollerkey.h"
#include "gtknative.h"
#include "gtkwindowprivate.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_native_get_for_surface (pointer_surface);
if (widget)
{
double x, y;
gdk_surface_get_device_position (gtk_native_get_surface (GTK_NATIVE (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;
gtk_window_present (GTK_WINDOW (iw));
clear_flash (iw);
widget = find_widget_at_pointer (gdk_event_get_device (event));
if (widget)
select_widget (iw, widget);
}
static void
reemphasize_window (GtkWidget *window)
{
gtk_window_present (GTK_WINDOW (window));
}
static gboolean handle_event (GtkInspectorWindow *iw, GdkEvent *event);
static gboolean
handle_event (GtkInspectorWindow *iw, GdkEvent *event)
{
switch ((int)gdk_event_get_event_type (event))
{
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
{
guint keyval = 0;
keyval = gdk_key_event_get_keyval (event);
if (keyval == GDK_KEY_Escape)
{
g_signal_handlers_disconnect_by_func (iw, handle_event, NULL);
reemphasize_window (GTK_WIDGET (iw));
clear_flash (iw);
}
}
break;
case GDK_MOTION_NOTIFY:
{
GtkWidget *widget = find_widget_at_pointer (gdk_event_get_device (event));
if (widget == NULL)
{
/* This window isn't in-process. Ignore it. */
break;
}
if (gtk_widget_get_root (widget) == GTK_ROOT (iw))
{
/* Don't hilight things in the inspector window */
break;
}
if (iw->flash_overlay &&
gtk_highlight_overlay_get_widget (GTK_HIGHLIGHT_OVERLAY (iw->flash_overlay)) == widget)
{
/* Already selected */
break;
}
start_flash (iw, widget);
}
break;
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
g_signal_handlers_disconnect_by_func (iw, handle_event, NULL);
reemphasize_window (GTK_WIDGET (iw));
on_inspect_widget (iw, event);
break;
default:;
}
return TRUE;
}
void
gtk_inspector_on_inspect (GtkWidget *button,
GtkInspectorWindow *iw)
{
gtk_widget_hide (GTK_WIDGET (iw));
g_signal_connect (iw, "event", G_CALLBACK (handle_event), NULL);
}
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 = gtk_inspector_window_get_inspected_display (iw);
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: */