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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/gtk/gtk_input_event_box.h"
#include <gdk/gdk.h>
#include <gtk/gtk.h>
G_BEGIN_DECLS
#define GTK_INPUT_EVENT_BOX_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), \
GTK_TYPE_INPUT_EVENT_BOX, \
GtkInputEventBoxPrivate))
typedef struct _GtkInputEventBoxPrivate GtkInputEventBoxPrivate;
struct _GtkInputEventBoxPrivate {
GdkWindow* event_window;
};
G_DEFINE_TYPE(GtkInputEventBox, gtk_input_event_box, GTK_TYPE_BIN)
static void gtk_input_event_box_realize(GtkWidget* widget);
static void gtk_input_event_box_unrealize(GtkWidget* widget);
static void gtk_input_event_box_map(GtkWidget* widget);
static void gtk_input_event_box_unmap(GtkWidget* widget);
static void gtk_input_event_box_size_allocate(GtkWidget* widget,
GtkAllocation* allocation);
static void gtk_input_event_box_size_request(GtkWidget* widget,
GtkRequisition* requisition);
static void gtk_input_event_box_class_init(GtkInputEventBoxClass* klass) {
GtkWidgetClass* widget_class = reinterpret_cast<GtkWidgetClass*>(klass);
widget_class->realize = gtk_input_event_box_realize;
widget_class->unrealize = gtk_input_event_box_unrealize;
widget_class->map = gtk_input_event_box_map;
widget_class->unmap = gtk_input_event_box_unmap;
widget_class->size_allocate = gtk_input_event_box_size_allocate;
widget_class->size_request = gtk_input_event_box_size_request;
GObjectClass* gobject_class = G_OBJECT_CLASS(klass);
g_type_class_add_private(gobject_class, sizeof(GtkInputEventBoxPrivate));
}
static void gtk_input_event_box_init(GtkInputEventBox* widget) {
GtkInputEventBoxPrivate* priv = GTK_INPUT_EVENT_BOX_GET_PRIVATE(widget);
priv->event_window = NULL;
}
GtkWidget* gtk_input_event_box_new() {
return GTK_WIDGET(g_object_new(GTK_TYPE_INPUT_EVENT_BOX, NULL));
}
static void gtk_input_event_box_realize(GtkWidget* widget) {
g_return_if_fail(GTK_IS_INPUT_EVENT_BOX(widget));
GtkInputEventBoxPrivate* priv = GTK_INPUT_EVENT_BOX_GET_PRIVATE(widget);
GdkWindow* parent = gtk_widget_get_parent_window(widget);
GdkWindowAttr attributes;
GtkAllocation allocation;
gint attributes_mask = GDK_WA_X | GDK_WA_Y;
gtk_widget_get_allocation(widget, &allocation);
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_ONLY;
attributes.event_mask = gtk_widget_get_events(widget) |
GDK_BUTTON_MOTION_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_EXPOSURE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK;
priv->event_window = gdk_window_new(parent, &attributes, attributes_mask);
gdk_window_set_user_data(priv->event_window, widget);
GTK_WIDGET_CLASS(gtk_input_event_box_parent_class)->realize(widget);
}
static void gtk_input_event_box_unrealize(GtkWidget* widget) {
g_return_if_fail(GTK_IS_INPUT_EVENT_BOX(widget));
GtkInputEventBoxPrivate* priv = GTK_INPUT_EVENT_BOX_GET_PRIVATE(widget);
if (priv->event_window) {
gdk_window_set_user_data(priv->event_window, NULL);
gdk_window_destroy(priv->event_window);
priv->event_window = NULL;
}
GTK_WIDGET_CLASS(gtk_input_event_box_parent_class)->unrealize(widget);
}
static void gtk_input_event_box_map(GtkWidget* widget) {
g_return_if_fail(GTK_IS_INPUT_EVENT_BOX(widget));
GtkInputEventBoxPrivate* priv = GTK_INPUT_EVENT_BOX_GET_PRIVATE(widget);
if (priv->event_window)
gdk_window_show(priv->event_window);
GTK_WIDGET_CLASS(gtk_input_event_box_parent_class)->map(widget);
}
static void gtk_input_event_box_unmap(GtkWidget* widget) {
g_return_if_fail(GTK_IS_INPUT_EVENT_BOX(widget));
GtkInputEventBoxPrivate* priv = GTK_INPUT_EVENT_BOX_GET_PRIVATE(widget);
if (priv->event_window)
gdk_window_hide(priv->event_window);
GTK_WIDGET_CLASS(gtk_input_event_box_parent_class)->unmap(widget);
}
static void gtk_input_event_box_size_allocate(GtkWidget* widget,
GtkAllocation* allocation) {
g_return_if_fail(GTK_IS_INPUT_EVENT_BOX(widget));
gtk_widget_set_allocation(widget, allocation);
GtkInputEventBoxPrivate* priv = GTK_INPUT_EVENT_BOX_GET_PRIVATE(widget);
if (priv->event_window) {
gdk_window_move_resize(priv->event_window,
allocation->x,
allocation->y,
allocation->width,
allocation->height);
}
GtkWidget* child = gtk_bin_get_child(GTK_BIN(widget));
if (child)
gtk_widget_size_allocate(child, allocation);
}
static void gtk_input_event_box_size_request(GtkWidget* widget,
GtkRequisition* requisition) {
GtkWidget* child = gtk_bin_get_child(GTK_BIN(widget));
if (child)
gtk_widget_size_request(child, requisition);
}
GdkWindow* gtk_input_event_box_get_window(GtkInputEventBox* widget) {
g_return_val_if_fail(GTK_IS_INPUT_EVENT_BOX(widget), NULL);
GtkInputEventBoxPrivate* priv = GTK_INPUT_EVENT_BOX_GET_PRIVATE(widget);
return priv->event_window;
}
G_END_DECLS
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