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-rw-r--r--content/browser/renderer_host/gtk_plugin_container.cc89
1 files changed, 89 insertions, 0 deletions
diff --git a/content/browser/renderer_host/gtk_plugin_container.cc b/content/browser/renderer_host/gtk_plugin_container.cc
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+++ b/content/browser/renderer_host/gtk_plugin_container.cc
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+// Copyright (c) 2009 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 "content/browser/renderer_host/gtk_plugin_container.h"
+
+#include <gtk/gtk.h>
+
+#include "base/basictypes.h"
+
+namespace content {
+
+namespace {
+
+// NOTE: This class doesn't have constructors/destructors, it is created
+// through GLib's object management.
+class GtkPluginContainer : public GtkSocket {
+ public:
+ // Sets the requested size of the widget.
+ void set_size(int width, int height) {
+ width_ = width;
+ height_ = height;
+ }
+
+ // Casts a widget into a GtkPluginContainer, after checking the type.
+ template <class T>
+ static GtkPluginContainer *CastChecked(T *instance) {
+ return G_TYPE_CHECK_INSTANCE_CAST(instance, GetType(), GtkPluginContainer);
+ }
+
+ // Create and register our custom container type with GTK.
+ static GType GetType() {
+ static GType type = 0; // We only want to register our type once.
+ if (!type) {
+ static const GTypeInfo info = {
+ sizeof(GtkSocketClass),
+ NULL, NULL,
+ static_cast<GClassInitFunc>(&ClassInit),
+ NULL, NULL,
+ sizeof(GtkPluginContainer),
+ 0, &InstanceInit,
+ };
+ type = g_type_register_static(GTK_TYPE_SOCKET,
+ "GtkPluginContainer",
+ &info,
+ static_cast<GTypeFlags>(0));
+ }
+ return type;
+ }
+
+ // Implementation of the class initializer.
+ static void ClassInit(gpointer klass, gpointer class_data_unusued) {
+ GtkWidgetClass* widget_class = reinterpret_cast<GtkWidgetClass*>(klass);
+ widget_class->size_request = &HandleSizeRequest;
+ }
+
+ // Implementation of the instance initializer (constructor).
+ static void InstanceInit(GTypeInstance *instance, gpointer klass) {
+ GtkPluginContainer *container = CastChecked(instance);
+ container->set_size(0, 0);
+ }
+
+ // Report our allocation size during size requisition.
+ static void HandleSizeRequest(GtkWidget* widget,
+ GtkRequisition* requisition) {
+ GtkPluginContainer *container = CastChecked(widget);
+ requisition->width = container->width_;
+ requisition->height = container->height_;
+ }
+
+ int width_;
+ int height_;
+ DISALLOW_IMPLICIT_CONSTRUCTORS(GtkPluginContainer);
+};
+
+} // namespace
+
+// Create a new instance of our GTK widget object.
+GtkWidget* gtk_plugin_container_new() {
+ return GTK_WIDGET(g_object_new(GtkPluginContainer::GetType(), NULL));
+}
+
+void gtk_plugin_container_set_size(GtkWidget *widget, int width, int height) {
+ GtkPluginContainer::CastChecked(widget)->set_size(width, height);
+ // Signal the parent that the size request has changed.
+ gtk_widget_queue_resize_no_redraw(widget);
+}
+
+} // namespace content