Move NPAPI implementation out of webkit/plugins/npapi and into content.

webkit/plugins/npapi/gtk_plugin_container_manager.cc

-// Copyright (c) 2012 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 "webkit/plugins/npapi/gtk_plugin_container_manager.h"
-
-#include <gtk/gtk.h>
-
-#include "base/logging.h"
-#include "ui/base/gtk/gtk_compat.h"
-#include "ui/gfx/gtk_util.h"
-#include "webkit/plugins/npapi/gtk_plugin_container.h"
-#include "webkit/plugins/npapi/webplugin.h"
-
-namespace webkit {
-namespace npapi {
-
-GtkPluginContainerManager::GtkPluginContainerManager() : host_widget_(NULL) {}
-
-GtkPluginContainerManager::~GtkPluginContainerManager() {}
-
-GtkWidget* GtkPluginContainerManager::CreatePluginContainer(
-    gfx::PluginWindowHandle id) {
-  DCHECK(host_widget_);
-  GtkWidget *widget = gtk_plugin_container_new();
-  plugin_window_to_widget_map_.insert(std::make_pair(id, widget));
-
-  // The Realize callback is responsible for adding the plug into the socket.
-  // The reason is 2-fold:
-  // - the plug can't be added until the socket is realized, but this may not
-  // happen until the socket is attached to a top-level window, which isn't the
-  // case for background tabs.
-  // - when dragging tabs, the socket gets unrealized, which breaks the XEMBED
-  // connection. We need to make it again when the tab is reattached, and the
-  // socket gets realized again.
-  //
-  // Note, the RealizeCallback relies on the plugin_window_to_widget_map_ to
-  // have the mapping.
-  g_signal_connect(widget, "realize",
-                   G_CALLBACK(RealizeCallback), this);
-
-  // Don't destroy the widget when the plug is removed.
-  g_signal_connect(widget, "plug-removed",
-                   G_CALLBACK(gtk_true), NULL);
-
-  gtk_container_add(GTK_CONTAINER(host_widget_), widget);
-  gtk_widget_show(widget);
-
-  return widget;
-}
-
-void GtkPluginContainerManager::DestroyPluginContainer(
-    gfx::PluginWindowHandle id) {
-  DCHECK(host_widget_);
-  GtkWidget* widget = MapIDToWidget(id);
-  if (widget)
-    gtk_widget_destroy(widget);
-
-  plugin_window_to_widget_map_.erase(id);
-}
-
-void GtkPluginContainerManager::MovePluginContainer(
-    const WebPluginGeometry& move) {
-  DCHECK(host_widget_);
-  GtkWidget *widget = MapIDToWidget(move.window);
-  if (!widget)
-    return;
-
-  DCHECK(gtk_widget_get_has_window(widget));
-
-  if (!move.visible) {
-    gtk_widget_hide(widget);
-    return;
-  }
-
-  gtk_widget_show(widget);
-
-  if (!move.rects_valid)
-    return;
-
-  // TODO(piman): if the widget hasn't been realized (e.g. the tab has been
-  // torn off and the parent gtk widget has been detached from the hierarchy),
-  // we lose the cutout information.
-  if (gtk_widget_get_realized(widget)) {
-    GdkRectangle clip_rect = move.clip_rect.ToGdkRectangle();
-    GdkRegion* clip_region = gdk_region_rectangle(&clip_rect);
-    gfx::SubtractRectanglesFromRegion(clip_region, move.cutout_rects);
-    gdk_window_shape_combine_region(gtk_widget_get_window(widget),
-                                    clip_region, 0, 0);
-    gdk_region_destroy(clip_region);
-  }
-
-  // Update the window position.  Resizing is handled by WebPluginDelegate.
-  // TODO(deanm): Verify that we only need to move and not resize.
-  // TODO(evanm): we should cache the last shape and position and skip all
-  // of this business in the common case where nothing has changed.
-  int current_x, current_y;
-
-  // Until the above TODO is resolved, we can grab the last position
-  // off of the GtkFixed with a bit of hackery.
-  GValue value = {0};
-  g_value_init(&value, G_TYPE_INT);
-  gtk_container_child_get_property(GTK_CONTAINER(host_widget_), widget,
-                                   "x", &value);
-  current_x = g_value_get_int(&value);
-  gtk_container_child_get_property(GTK_CONTAINER(host_widget_), widget,
-                                   "y", &value);
-  current_y = g_value_get_int(&value);
-  g_value_unset(&value);
-
-  if (move.window_rect.x() != current_x ||
-      move.window_rect.y() != current_y) {
-    // Calling gtk_fixed_move unnecessarily is a no-no, as it causes the
-    // parent window to repaint!
-    gtk_fixed_move(GTK_FIXED(host_widget_),
-                   widget,
-                   move.window_rect.x(),
-                   move.window_rect.y());
-  }
-
-  gtk_plugin_container_set_size(widget,
-                                move.window_rect.width(),
-                                move.window_rect.height());
-}
-
-GtkWidget* GtkPluginContainerManager::MapIDToWidget(
-    gfx::PluginWindowHandle id) {
-  PluginWindowToWidgetMap::const_iterator i =
-      plugin_window_to_widget_map_.find(id);
-  if (i != plugin_window_to_widget_map_.end())
-    return i->second;
-
-  LOG(ERROR) << "Request for widget host for unknown window id " << id;
-
-  return NULL;
-}
-
-gfx::PluginWindowHandle GtkPluginContainerManager::MapWidgetToID(
-     GtkWidget* widget) {
-  for (PluginWindowToWidgetMap::const_iterator i =
-          plugin_window_to_widget_map_.begin();
-       i != plugin_window_to_widget_map_.end(); ++i) {
-    if (i->second == widget)
-      return i->first;
-  }
-
-  LOG(ERROR) << "Request for id for unknown widget";
-  return 0;
-}
-
-// static
-void GtkPluginContainerManager::RealizeCallback(GtkWidget* widget,
-                                                void* user_data) {
-  GtkPluginContainerManager* plugin_container_manager =
-      static_cast<GtkPluginContainerManager*>(user_data);
-
-  gfx::PluginWindowHandle id = plugin_container_manager->MapWidgetToID(widget);
-  if (id)
-    gtk_socket_add_id(GTK_SOCKET(widget), id);
-}
-
-}  // namespace npapi
-}  // namespace webkit