Implement a useful context menu for the blocked plug-in frame:...

chrome/renderer/blocked_plugin.cc

 // Copyright (c) 2010 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/renderer/blocked_plugin.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/string_piece.h"
 #include "base/values.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/renderer/render_view.h"
 #include "grit/generated_resources.h"
 #include "grit/renderer_resources.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebContextMenuData.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebData.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebMenuItemInfo.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebPluginContainer.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebPoint.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebVector.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebView.h"
 #include "webkit/glue/plugins/plugin_group.h"
 #include "webkit/glue/plugins/webview_plugin.h"
 #include "webkit/glue/webpreferences.h"
 
+using WebKit::WebContextMenuData;
 using WebKit::WebFrame;
+using WebKit::WebMenuItemInfo;
 using WebKit::WebPlugin;
 using WebKit::WebPluginContainer;
 using WebKit::WebPluginParams;
+using WebKit::WebPoint;
+using WebKit::WebString;
+using WebKit::WebVector;
 
 static const char* const kBlockedPluginDataURL = "chrome://blockedplugindata/";
+static const unsigned kMenuActionLoad = 1;
+static const unsigned kMenuActionRemove = 2;
 
 BlockedPlugin::BlockedPlugin(RenderView* render_view,
                              WebFrame* frame,
                              const PluginGroup& info,
                              const WebPluginParams& params,
                              const WebPreferences& preferences,
                              int template_id,
                              const string16& message)
     : render_view_(render_view),
       frame_(frame),
       plugin_params_(params) {
   const base::StringPiece template_html(
       ResourceBundle::GetSharedInstance().GetRawDataResource(template_id));
 
   DCHECK(!template_html.empty()) << "unable to load template. ID: "
                                  << template_id;
 
   DictionaryValue values;
   values.SetString("message", message);
-  values.SetString("name", info.GetGroupName());
+  name_ = info.GetGroupName();
+  values.SetString("name", name_);
 
   // "t" is the id of the templates root node.
   std::string html_data = jstemplate_builder::GetTemplatesHtml(
       template_html, &values, "t");
 
   plugin_ = WebViewPlugin::Create(this,
                                   preferences,
                                   html_data,
                                   GURL(kBlockedPluginDataURL));
 
   registrar_.Add(this,
                  NotificationType::SHOULD_LOAD_PLUGINS,
                  NotificationService::AllSources());
 }
 
-BlockedPlugin::~BlockedPlugin() {}
+BlockedPlugin::~BlockedPlugin() {
+  render_view_->CustomMenuListenerDestroyed(this);
+}
 
 void BlockedPlugin::BindWebFrame(WebFrame* frame) {
   BindToJavascript(frame, L"plugin");
   BindMethod("load", &BlockedPlugin::Load);
 }
 
 void BlockedPlugin::WillDestroyPlugin() {
   delete this;
 }
 
+void BlockedPlugin::ShowContextMenu(const WebKit::WebMouseEvent& event) {
+  WebContextMenuData menu_data;
+  WebVector<WebMenuItemInfo> custom_items(static_cast<size_t>(4));
+
+  WebMenuItemInfo name_item;
+  name_item.label = name_;
+  custom_items[0] = name_item;
+
+  WebMenuItemInfo separator_item;
+  separator_item.type = WebMenuItemInfo::Separator;
+  custom_items[1] = separator_item;
+
+  WebMenuItemInfo run_item;
+  run_item.action = kMenuActionLoad;
+  run_item.enabled = true;
+  run_item.label = WebString::fromUTF8(
+      l10n_util::GetStringUTF8(IDS_CONTENT_CONTEXT_PLUGIN_RUN).c_str());
+  custom_items[2] = run_item;
+
+  WebMenuItemInfo hide_item;
+  hide_item.action = kMenuActionRemove;
+  hide_item.enabled = true;
+  hide_item.label = WebString::fromUTF8(
+      l10n_util::GetStringUTF8(IDS_CONTENT_CONTEXT_PLUGIN_HIDE).c_str());
+  custom_items[3] = hide_item;
+
+  menu_data.customItems.swap(custom_items);
+  menu_data.mousePosition = WebPoint(event.windowX, event.windowY);
+  render_view_->showContextMenu(NULL, menu_data);
+  render_view_->CustomMenuListenerInstall(this);
+}
+
+void BlockedPlugin::MenuItemSelected(unsigned id) {
+  if (id == kMenuActionLoad) {
+    LoadPlugin();
+  } else if (id == kMenuActionRemove) {
+    HidePlugin();
+  } else {
+    NOTREACHED();
+  }
+}
+
 void BlockedPlugin::Observe(NotificationType type,
                             const NotificationSource& source,
                             const NotificationDetails& details) {
   if (type == NotificationType::SHOULD_LOAD_PLUGINS) {
     LoadPlugin();
   } else {
     NOTREACHED();
   }
 }
 
 void BlockedPlugin::Load(const CppArgumentList& args, CppVariant* result) {
   LoadPlugin();
 }
 
 void BlockedPlugin::LoadPlugin() {
   CHECK(plugin_);
   WebPluginContainer* container = plugin_->container();
   WebPlugin* new_plugin =
       render_view_->CreatePluginNoCheck(frame_,
                                         plugin_params_);
   if (new_plugin && new_plugin->initialize(container)) {
     container->setPlugin(new_plugin);
     container->invalidate();
     container->reportGeometry();
     plugin_->ReplayReceivedData(new_plugin);
     plugin_->destroy();
   }
 }
+
+void BlockedPlugin::HidePlugin() {
+  CHECK(plugin_);
+  WebPluginContainer* container = plugin_->container();
+  container->element().setAttribute("style", "display: none;");
+}
+