Add click-to-load functionality for blocked plugins.

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 "chrome/common/jstemplate_builder.h"
+#include "chrome/renderer/render_view.h"
+#include "grit/generated_resources.h"
+#include "grit/renderer_resources.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/WebPluginContainer.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebView.h"
+#include "webkit/glue/plugins/webview_plugin.h"
+
+using WebKit::WebCursorInfo;
+using WebKit::WebFrame;
+using WebKit::WebPlugin;
+using WebKit::WebPluginContainer;
+using WebKit::WebPluginParams;
+using WebKit::WebURL;
+using WebKit::WebView;
+
+static const char* const kBlockedPluginDataURL = "chrome://blockedplugindata/";
+
+BlockedPlugin::BlockedPlugin(RenderView* render_view,
+                             WebFrame* frame,
+                            const WebPluginParams& params)
+    : render_view_(render_view),
+      frame_(frame),
+      plugin_params_(params) {
+  plugin_ = new WebViewPlugin(this);
+
+  WebView* web_view = plugin_->web_view();
+  web_view->mainFrame()->setCanHaveScrollbars(false);
+
+  int resource_id = IDR_BLOCKED_PLUGIN_HTML;
+  const base::StringPiece template_html(
+      ResourceBundle::GetSharedInstance().GetRawDataResource(resource_id));
+
+  DCHECK(!template_html.empty()) << "unable to load template. ID: "
+                                 << resource_id;
+
+  DictionaryValue localized_strings;
+  localized_strings.SetString(L"loadPlugin",
+      l10n_util::GetString(IDS_PLUGIN_LOAD));
+
+  // "t" is the id of the templates root node.
+  std::string htmlData = jstemplate_builder::GetTemplatesHtml(
+      template_html, &localized_strings, "t");
+
+  web_view->mainFrame()->loadHTMLString(htmlData,
+                                        GURL(kBlockedPluginDataURL));
+}
+
+void BlockedPlugin::BindWebFrame(WebFrame* frame) {
+  BindToJavascript(frame, L"plugin");
+  BindMethod("load", &BlockedPlugin::Load);
+}
+
+void BlockedPlugin::WillDestroyPlugin() {
+  delete this;
+}
+
+void BlockedPlugin::Load(const CppArgumentList& args, CppVariant* result) {
+  LoadPlugin();
+}
+
+void BlockedPlugin::LoadPlugin() {
+  CHECK(plugin_);
+  WebPluginContainer* container = plugin_->container();
+  WebPlugin* new_plugin =
+      render_view_->CreatePluginInternal(frame_, plugin_params_);
+  if (new_plugin && new_plugin->initialize(container)) {
+    container->setPlugin(new_plugin);
+    container->invalidate();
+    container->reportGeometry();
+    plugin_->destroy();
+  }
+}