Implemented Browser Plugin (NOT FOR REVIEW)

content/renderer/browser_plugin/browser_plugin_placeholder.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 "content/renderer/browser_plugin/browser_plugin_placeholder.h"
-
-#include "base/atomic_sequence_num.h"
-#include "base/id_map.h"
-#include "base/lazy_instance.h"
-#include "base/process.h"
-#include "base/string_number_conversions.h"
-#include "base/string_piece.h"
-#include "base/string_util.h"
-#include "base/values.h"
-#include "content/common/view_messages.h"
-#include "content/public/renderer/render_view.h"
-#include "ipc/ipc_channel_handle.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginContainer.h"
-#include "webkit/plugins/webview_plugin.h"
-
-static base::StaticAtomicSequenceNumber g_next_id;
-
-// The global list of all Browser Plugin Placeholders within a process.
-base::LazyInstance<IDMap<BrowserPluginPlaceholder> >::Leaky
-    g_all_placeholders = LAZY_INSTANCE_INITIALIZER;
-
-using webkit::WebViewPlugin;
-using WebKit::WebPlugin;
-using WebKit::WebPluginContainer;
-
-const char* const kPluginPlaceholderDataURL =
-    "about:blank";
-
-// static
-webkit::WebViewPlugin* BrowserPluginPlaceholder::Create(
-    content::RenderView* render_view,
-    WebKit::WebFrame* frame,
-    const WebKit::WebPluginParams& params) {
-  // TODO(fsamuel): Need a better loading screen at some point. Maybe this can
-  // be a part of the <browser> API?
-  // |browser_plugin| will destroy itself when its WebViewPlugin is going away.
-  BrowserPluginPlaceholder* browser_plugin = new BrowserPluginPlaceholder(
-      render_view, frame, params, "");
-  return browser_plugin->plugin();
-}
-
-// static
-BrowserPluginPlaceholder* BrowserPluginPlaceholder::FromID(int id) {
-  return g_all_placeholders.Get().Lookup(id);
-}
-
-BrowserPluginPlaceholder::BrowserPluginPlaceholder(
-    content::RenderView* render_view,
-    WebKit::WebFrame* frame,
-    const WebKit::WebPluginParams& params,
-    const std::string& html_data)
-    : render_view_(render_view),
-      plugin_params_(params),
-      plugin_(webkit::WebViewPlugin::Create(
-              this, render_view->GetWebkitPreferences(), html_data,
-                        GURL(kPluginPlaceholderDataURL))) {
-  id_ = g_next_id.GetNext();
-  RegisterPlaceholder(GetID(), this);
-
-  // By default we navigate to google.com
-  GetPluginParameters(0, 0, "http://www.google.com/");
-
-  // TODO(fsamuel): Request a browser plugin instance from the
-  // browser process.
-}
-
-BrowserPluginPlaceholder::~BrowserPluginPlaceholder() {
-  UnregisterPlaceholder(GetID());
-}
-
-void BrowserPluginPlaceholder::RegisterPlaceholder(
-    int id,
-    BrowserPluginPlaceholder* placeholder) {
-  g_all_placeholders.Get().AddWithID(placeholder, id);
-}
-
-void BrowserPluginPlaceholder::UnregisterPlaceholder(int id) {
-  if (g_all_placeholders.Get().Lookup(id))
-    g_all_placeholders.Get().Remove(id);
-}
-
-const WebKit::WebPluginParams& BrowserPluginPlaceholder::plugin_params() const {
-    return plugin_params_;
-}
-
-void BrowserPluginPlaceholder::GetPluginParameters(
-    int default_width, int default_height,
-    const std::string& default_src) {
-  int width = default_width;
-  int height = default_height;
-
-  // Get the plugin parameters from the attributes vector
-  for (unsigned i = 0; i < plugin_params_.attributeNames.size(); ++i) {
-    std::string attributeName = plugin_params_.attributeNames[i].utf8();
-    if (LowerCaseEqualsASCII(attributeName, "width")) {
-      std::string attributeValue = plugin_params_.attributeValues[i].utf8();
-      CHECK(base::StringToInt(attributeValue, &width));
-    } else if (LowerCaseEqualsASCII(attributeName, "height")) {
-      std::string attributeValue = plugin_params_.attributeValues[i].utf8();
-      CHECK(base::StringToInt(attributeValue, &height));
-    } else if (LowerCaseEqualsASCII(attributeName, "src")) {
-      src_ = plugin_params_.attributeValues[i].utf8();
-    }
-  }
-  // If we didn't find the attributes set or they're not sensible,
-  // we reset our attributes to the default.
-  if (src_.empty())
-    src_ = default_src;
-
-  size_.SetSize(width, height);
-}
-
-void BrowserPluginPlaceholder::GuestReady(
-    base::ProcessHandle process_handle,
-    const IPC::ChannelHandle& channel_handle) {
-  // TODO(fsamuel): Once the guest renderer is ready,
-  // it will inform the host renderer and the BrowserPluginPlaceholder
-  // can swap itself out with the guest.
-  NOTIMPLEMENTED();
-}
-
-void BrowserPluginPlaceholder::LoadGuest(WebKit::WebPlugin* new_plugin) {
-  WebKit::WebPluginContainer* container = plugin_->container();
-  if (!new_plugin || !new_plugin->initialize(container))
-    return;
-  plugin_->RestoreTitleText();
-  container->setPlugin(new_plugin);
-  container->invalidate();
-  container->reportGeometry();
-  plugin_->ReplayReceivedData(new_plugin);
-  plugin_->destroy();
-}
-
-void BrowserPluginPlaceholder::WillDestroyPlugin() {
-  delete this;
-}