Browser Plugin: Move to old directories

content/browser/browser_plugin/browser_plugin_host.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/browser/browser_plugin/browser_plugin_host.h"
-
-#include "content/browser/browser_plugin/browser_plugin_host_helper.h"
-#include "content/browser/renderer_host/render_view_host_impl.h"
-#include "content/browser/web_contents/web_contents_impl.h"
-#include "content/common/browser_plugin_messages.h"
-#include "content/public/browser/notification_details.h"
-#include "content/public/browser/notification_source.h"
-#include "content/public/browser/notification_types.h"
-#include "content/public/browser/render_process_host.h"
-#include "content/public/browser/render_widget_host_view.h"
-#include "content/public/browser/site_instance.h"
-#include "content/public/browser/web_contents_view.h"
-#include "ppapi/proxy/ppapi_messages.h"
-
-namespace content {
-
-BrowserPluginHost::BrowserPluginHost(
-    WebContentsImpl* web_contents)
-    : WebContentsObserver(web_contents),
-      embedder_render_process_host_(NULL),
-      instance_id_(0) {
-  // Listen to visibility changes so that an embedder hides its guests
-  // as well.
-  registrar_.Add(this,
-                 NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED,
-                 Source<WebContents>(web_contents));
-  // Construct plumbing helpers when a new RenderViewHost is created for
-  // this BrowserPluginHost's WebContentsImpl.
-  registrar_.Add(this,
-                 NOTIFICATION_RENDER_VIEW_HOST_CREATED_FOR_TAB,
-                 Source<WebContents>(web_contents));
-}
-
-BrowserPluginHost::~BrowserPluginHost() {
-}
-
-BrowserPluginHost* BrowserPluginHost::GetGuestByContainerID(int container_id) {
-  ContainerInstanceMap::const_iterator it =
-      guests_by_container_id_.find(container_id);
-  if (it != guests_by_container_id_.end())
-    return it->second;
-  return NULL;
-}
-
-void BrowserPluginHost::RegisterContainerInstance(
-    int container_id,
-    BrowserPluginHost* observer) {
-  DCHECK(guests_by_container_id_.find(container_id) ==
-      guests_by_container_id_.end());
-  guests_by_container_id_[container_id] = observer;
-}
-
-bool BrowserPluginHost::TakeFocus(bool reverse) {
-  embedder_render_process_host()->Send(
-      new BrowserPluginMsg_AdvanceFocus(instance_id(), reverse));
-  return true;
-}
-
-bool BrowserPluginHost::OnMessageReceived(const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(BrowserPluginHost, message)
-    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_NavigateFromGuest,
-                        OnNavigateFromGuest)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
-void BrowserPluginHost::NavigateGuestFromEmbedder(
-    RenderViewHost* render_view_host,
-    int container_instance_id,
-    long long frame_id,
-    const std::string& src) {
-  BrowserPluginHost* guest_observer =
-      GetGuestByContainerID(container_instance_id);
-  WebContentsImpl* guest_web_contents =
-      guest_observer ?
-          static_cast<WebContentsImpl*>(guest_observer->web_contents()): NULL;
-  if (!guest_observer) {
-    guest_web_contents =
-        static_cast<WebContentsImpl*>(
-            WebContents::Create(
-                web_contents()->GetBrowserContext(),
-                render_view_host->GetSiteInstance(),
-                MSG_ROUTING_NONE,
-                NULL, // base WebContents
-                NULL  // session storage namespace
-            ));
-    guest_observer =
-        guest_web_contents->browser_plugin_host();
-    guest_observer->set_embedder_render_process_host(
-        render_view_host->GetProcess());
-    guest_observer->set_instance_id(container_instance_id);
-    RegisterContainerInstance(container_instance_id, guest_observer);
-    AddGuest(guest_web_contents, frame_id);
-  }
-  GURL url(src);
-  guest_observer->web_contents()->SetDelegate(guest_observer);
-  guest_observer->web_contents()->GetController().LoadURL(
-      url,
-      Referrer(),
-      PAGE_TRANSITION_AUTO_SUBFRAME,
-      std::string());
-}
-
-void BrowserPluginHost::OnNavigateFromGuest(
-    PP_Instance instance,
-    const std::string& src) {
-  DCHECK(embedder_render_process_host());
-  GURL url(src);
-  web_contents()->GetController().LoadURL(
-      url,
-      Referrer(),
-      PAGE_TRANSITION_AUTO_SUBFRAME,
-      std::string());
-}
-
-void BrowserPluginHost::ConnectEmbedderToChannel(
-    RenderViewHost* render_view_host,
-    const IPC::ChannelHandle& channel_handle) {
-  DCHECK(embedder_render_process_host());
-  // Tell the BrowserPlugin in the embedder that we're done and that it can
-  // begin using the guest renderer.
-  embedder_render_process_host()->Send(
-      new BrowserPluginMsg_LoadGuest(
-          instance_id(),
-          render_view_host->GetProcess()->
-              GetID(),
-          channel_handle));
-}
-
-void BrowserPluginHost::AddGuest(WebContentsImpl* guest, int64 frame_id) {
-  guests_[guest] = frame_id;
-}
-
-void BrowserPluginHost::RemoveGuest(WebContentsImpl* guest) {
-  guests_.erase(guest);
-}
-
-void BrowserPluginHost::DestroyGuests() {
-  for (GuestMap::const_iterator it = guests_.begin();
-       it != guests_.end(); ++it) {
-    WebContentsImpl* web_contents = it->first;
-    delete web_contents;
-  }
-  guests_.clear();
-  guests_by_container_id_.clear();
-}
-
-void BrowserPluginHost::DidCommitProvisionalLoadForFrame(
-    int64 frame_id,
-    bool is_main_frame,
-    const GURL& url,
-    PageTransition transition_type,
-    RenderViewHost* render_view_host) {
-  // Clean-up guests that lie in the frame that we're navigating.
-  typedef std::set<WebContentsImpl*> GuestSet;
-  GuestSet guests_to_delete;
-  for (GuestMap::const_iterator it = guests_.begin();
-       it != guests_.end(); ++it) {
-    WebContentsImpl* web_contents = it->first;
-    if (it->second == frame_id) {
-      guests_to_delete.insert(web_contents);
-    }
-  }
-  for (GuestSet::const_iterator it = guests_to_delete.begin();
-       it != guests_to_delete.end(); ++it) {
-    delete *it;
-    guests_.erase(*it);
-  }
-}
-
-void BrowserPluginHost::RenderViewDeleted(RenderViewHost* render_view_host) {
-  // TODO(fsamuel): For some reason ToT hangs when killing a guest, this wasn't
-  // the case earlier. Presumably, when a guest is killed/crashes, one of
-  // RenderViewDeleted, RenderViewGone or WebContentsDestroyed will get called.
-  // At that point, we should remove reference to this BrowserPluginHost
-  // from its embedder, in addition to destroying its guests, to ensure
-  // that we do not attempt a double delete.
-  DestroyGuests();
-}
-
-void BrowserPluginHost::RenderViewGone(base::TerminationStatus status) {
-  DestroyGuests();
-}
-
-void BrowserPluginHost::WebContentsDestroyed(WebContents* web_contents) {
-  DestroyGuests();
-}
-
-void BrowserPluginHost::Observe(
-    int type,
-    const NotificationSource& source,
-    const NotificationDetails& details) {
-  switch (type) {
-    case NOTIFICATION_RENDER_VIEW_HOST_CREATED_FOR_TAB: {
-      RenderViewHost* render_view_host =
-          Details<RenderViewHost>(details).ptr();
-      // BrowserPluginHostHelper is destroyed when its associated RenderViewHost
-      // is destroyed.
-      new BrowserPluginHostHelper(this, render_view_host);
-      break;
-    }
-    case NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED: {
-      bool visible = *Details<bool>(details).ptr();
-      // If the embedder is hidden we need to hide the guests as well.
-      for (GuestMap::const_iterator it = guests_.begin();
-          it != guests_.end(); ++it) {
-        WebContentsImpl* web_contents = it->first;
-        if (visible)
-          web_contents->ShowContents();
-        else
-          web_contents->HideContents();
-      }
-      break;
-    }
-    default:
-      NOTREACHED() << "Unexpected notification type: " << type;
-  }
-}
-
-}  // namespace content