gtk2/gtk/inspector/inspect-button.c
Benjamin Otte 05e752e096 inspector: Turn object tree into a GtkListBox
The code gets rid of the GtkTreeView and replaces it with a GtkListBox.

Most of the logic is now done via GListModel subclasses.

A big change is that this new list is now tracking updates itself and
doesn't need to be manually updated. All code that used to cause rescans
or add forgotten objects to the tree has been removed.

If objects are missing from the object tree, the logic for tracking them
needs to be added.
2018-09-16 18:50:17 +02:00

427 lines
11 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 "gtkinvisible.h"
#include "gtkwidgetprivate.h"
#include "gtkgesturemultipress.h"
#include "gtkeventcontrollermotion.h"
#include "gtkeventcontrollerkey.h"
static gboolean
inspector_contains (GtkWidget *widget,
double x,
double y)
{
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
if (!gtk_widget_is_drawable (widget))
return FALSE;
return GTK_WIDGET_GET_CLASS (widget)->contains (widget, x, y);
}
static GtkWidget *
inspector_pick (GtkWidget *widget,
double x,
double y)
{
/* Like gtk_widget_pick and gtk_widget_contains,
* but we need to consider insensitive widgets as well. */
GtkWidget *child;
for (child = _gtk_widget_get_last_child (widget);
child;
child = _gtk_widget_get_prev_sibling (child))
{
GtkWidget *picked;
int dx, dy;
gtk_widget_get_origin_relative_to_parent (child, &dx, &dy);
picked = GTK_WIDGET_GET_CLASS (child)->pick (child, x - dx, y - dy);
if (picked)
return picked;
}
if (!inspector_contains (widget, x, y))
return NULL;
return widget;
}
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)
{
gpointer widget_ptr;
gdk_surface_get_user_data (pointer_surface, &widget_ptr);
widget = widget_ptr;
if (!GTK_IS_WINDOW (widget))
{
while (TRUE)
{
GdkSurface *parent = gdk_surface_get_parent (pointer_surface);
if (!parent)
break;
pointer_surface = parent;
gdk_surface_get_user_data (pointer_surface, &widget_ptr);
widget = widget_ptr;
if (GTK_IS_WINDOW (widget))
break;
}
}
}
if (widget)
{
double x, y;
gdk_surface_get_device_position_double (gtk_widget_get_surface (widget),
device, &x, &y, NULL);
widget = inspector_pick (widget, x, y);
}
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 (GtkWidget *button,
GdkEvent *event,
GtkInspectorWindow *iw)
{
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 void
property_query_pressed (GtkGestureMultiPress *gesture,
guint n_press,
gdouble x,
gdouble y,
GtkInspectorWindow *iw)
{
GdkEvent *event;
gtk_grab_remove (iw->invisible);
if (iw->grab_seat)
{
gdk_seat_ungrab (iw->grab_seat);
iw->grab_seat = NULL;
}
reemphasize_window (GTK_WIDGET (iw));
event = gtk_get_current_event ();
on_inspect_widget (iw->invisible, event, iw);
g_object_unref (event);
gtk_widget_destroy (iw->invisible);
iw->invisible = NULL;
}
static void
property_query_motion (GtkEventControllerMotion *controller,
gdouble x,
gdouble y,
GtkInspectorWindow *iw)
{
GdkEvent *event;
event = gtk_get_current_event ();
on_highlight_widget (iw->invisible, event, iw);
g_object_unref (event);
}
static gboolean
property_query_key (GtkEventControllerKey *key,
guint keyval,
guint keycode,
GdkModifierType modifiers,
GtkInspectorWindow *iw)
{
if (keyval == GDK_KEY_Escape)
{
gtk_grab_remove (iw->invisible);
if (iw->grab_seat)
{
gdk_seat_ungrab (iw->grab_seat);
iw->grab_seat = NULL;
}
reemphasize_window (GTK_WIDGET (iw));
clear_flash (iw);
gtk_widget_destroy (iw->invisible);
iw->invisible = NULL;
return TRUE;
}
return FALSE;
}
static void
prepare_inspect_func (GdkSeat *seat,
GdkSurface *surface,
gpointer user_data)
{
gdk_surface_show (surface);
}
void
gtk_inspector_on_inspect (GtkWidget *button,
GtkInspectorWindow *iw)
{
GdkDisplay *display;
GdkCursor *cursor;
GdkGrabStatus status;
GtkEventController *controller;
GdkSeat *seat;
if (!iw->invisible)
{
iw->invisible = gtk_invisible_new_for_display (gdk_display_get_default ());
gtk_widget_realize (iw->invisible);
gtk_widget_show (iw->invisible);
}
display = gdk_display_get_default ();
cursor = gdk_cursor_new_from_name ("crosshair", NULL);
seat = gdk_display_get_default_seat (display);
status = gdk_seat_grab (seat,
gtk_widget_get_surface (iw->invisible),
GDK_SEAT_CAPABILITY_ALL_POINTING, TRUE,
cursor, NULL, prepare_inspect_func, NULL);
g_object_unref (cursor);
if (status == GDK_GRAB_SUCCESS)
iw->grab_seat = seat;
controller = GTK_EVENT_CONTROLLER (gtk_gesture_multi_press_new ());
g_signal_connect (controller, "pressed",
G_CALLBACK (property_query_pressed), iw);
gtk_widget_add_controller (iw->invisible, controller);
controller = gtk_event_controller_motion_new ();
g_signal_connect (controller, "motion",
G_CALLBACK (property_query_motion), iw);
gtk_widget_add_controller (iw->invisible, controller);
controller = GTK_EVENT_CONTROLLER (gtk_event_controller_key_new ());
g_signal_connect (controller, "key-pressed",
G_CALLBACK (property_query_key), iw);
gtk_widget_add_controller (iw->invisible, controller);
gtk_grab_add (GTK_WIDGET (iw->invisible));
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: */