extensions/browser/app_window/app_window_contents.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "extensions/browser/app_window/app_window_contents.h"
   6
   7 #include <string>
   8 #include <utility>
   9
  10 #include "content/public/browser/browser_context.h"
  11 #include "content/public/browser/browser_thread.h"
  12 #include "content/public/browser/render_frame_host.h"
  13 #include "content/public/browser/render_process_host.h"
  14 #include "content/public/browser/render_view_host.h"
  15 #include "content/public/browser/resource_dispatcher_host.h"
  16 #include "content/public/browser/site_instance.h"
  17 #include "content/public/browser/web_contents.h"
  18 #include "content/public/common/renderer_preferences.h"
  19 #include "extensions/browser/app_window/native_app_window.h"
  20 #include "extensions/common/extension_messages.h"
  21
  22 namespace extensions {
  23
  24 AppWindowContentsImpl::AppWindowContentsImpl(AppWindow* host)
  25     : host_(host), is_blocking_requests_(false), is_window_ready_(false) {}
  26
  27 AppWindowContentsImpl::~AppWindowContentsImpl() {}
  28
  29 void AppWindowContentsImpl::Initialize(content::BrowserContext* context,
  30                                        const GURL& url) {
  31   url_ = url;
  32
  33   web_contents_.reset(
  34       content::WebContents::Create(content::WebContents::CreateParams(
  35           context, content::SiteInstance::CreateForURL(context, url_))));
  36
  37   Observe(web_contents_.get());
  38   web_contents_->GetMutableRendererPrefs()->
  39       browser_handles_all_top_level_requests = true;
  40   web_contents_->GetRenderViewHost()->SyncRendererPrefs();
  41 }
  42
  43 void AppWindowContentsImpl::LoadContents(int32 creator_process_id) {
  44   // If the new view is in the same process as the creator, block the created
  45   // RVH from loading anything until the background page has had a chance to
  46   // do any initialization it wants. If it's a different process, the new RVH
  47   // shouldn't communicate with the background page anyway (e.g. sandboxed).
  48   if (web_contents_->GetMainFrame()->GetProcess()->GetID() ==
  49       creator_process_id) {
  50     SuspendRenderFrameHost(web_contents_->GetMainFrame());
  51   } else {
  52     VLOG(1) << "AppWindow created in new process ("
  53             << web_contents_->GetMainFrame()->GetProcess()->GetID()
  54             << ") != creator (" << creator_process_id << "). Routing disabled.";
  55   }
  56
  57   web_contents_->GetController().LoadURL(
  58       url_, content::Referrer(), ui::PAGE_TRANSITION_LINK,
  59       std::string());
  60 }
  61
  62 void AppWindowContentsImpl::NativeWindowChanged(
  63     NativeAppWindow* native_app_window) {
  64   base::ListValue args;
  65   base::DictionaryValue* dictionary = new base::DictionaryValue();
  66   args.Append(dictionary);
  67   host_->GetSerializedState(dictionary);
  68
  69   content::RenderFrameHost* rfh = web_contents_->GetMainFrame();
  70   rfh->Send(new ExtensionMsg_MessageInvoke(
  71       rfh->GetRoutingID(), host_->extension_id(), "app.window",
  72       "updateAppWindowProperties", args, false));
  73 }
  74
  75 void AppWindowContentsImpl::NativeWindowClosed() {
  76   content::RenderViewHost* rvh = web_contents_->GetRenderViewHost();
  77   rvh->Send(new ExtensionMsg_AppWindowClosed(rvh->GetRoutingID()));
  78 }
  79
  80 void AppWindowContentsImpl::DispatchWindowShownForTests() const {
  81   base::ListValue args;
  82   content::RenderFrameHost* rfh = web_contents_->GetMainFrame();
  83   rfh->Send(new ExtensionMsg_MessageInvoke(
  84       rfh->GetRoutingID(), host_->extension_id(), "app.window",
  85       "appWindowShownForTests", args, false));
  86 }
  87
  88 void AppWindowContentsImpl::OnWindowReady() {
  89   is_window_ready_ = true;
  90   if (is_blocking_requests_) {
  91     is_blocking_requests_ = false;
  92     content::RenderFrameHost* frame = web_contents_->GetMainFrame();
  93     content::BrowserThread::PostTask(
  94         content::BrowserThread::IO, FROM_HERE,
  95         base::Bind(
  96             &content::ResourceDispatcherHost::ResumeBlockedRequestsForRoute,
  97             base::Unretained(content::ResourceDispatcherHost::Get()),
  98             frame->GetProcess()->GetID(),
  99             frame->GetRenderViewHost()->GetRoutingID()));
 100   }
 101 }
 102
 103 content::WebContents* AppWindowContentsImpl::GetWebContents() const {
 104   return web_contents_.get();
 105 }
 106
 107 WindowController* AppWindowContentsImpl::GetWindowController() const {
 108   return nullptr;
 109 }
 110
 111 bool AppWindowContentsImpl::OnMessageReceived(const IPC::Message& message) {
 112   bool handled = true;
 113   IPC_BEGIN_MESSAGE_MAP(AppWindowContentsImpl, message)
 114     IPC_MESSAGE_HANDLER(ExtensionHostMsg_UpdateDraggableRegions,
 115                         UpdateDraggableRegions)
 116     IPC_MESSAGE_UNHANDLED(handled = false)
 117   IPC_END_MESSAGE_MAP()
 118   return handled;
 119 }
 120
 121 void AppWindowContentsImpl::ReadyToCommitNavigation(
 122     content::NavigationHandle* handle) {
 123   if (!is_window_ready_)
 124     host_->OnReadyToCommitFirstNavigation();
 125 }
 126
 127 void AppWindowContentsImpl::UpdateDraggableRegions(
 128     const std::vector<DraggableRegion>& regions) {
 129   host_->UpdateDraggableRegions(regions);
 130 }
 131
 132 void AppWindowContentsImpl::SuspendRenderFrameHost(
 133     content::RenderFrameHost* rfh) {
 134   DCHECK(rfh);
 135   // Don't bother blocking requests if the renderer side is already good to go.
 136   if (is_window_ready_)
 137     return;
 138   is_blocking_requests_ = true;
 139   // The ResourceDispatcherHost only accepts RenderViewHost child ids.
 140   // TODO(devlin): This will need to change for site isolation.
 141   content::BrowserThread::PostTask(
 142       content::BrowserThread::IO, FROM_HERE,
 143       base::Bind(&content::ResourceDispatcherHost::BlockRequestsForRoute,
 144                  base::Unretained(content::ResourceDispatcherHost::Get()),
 145                  rfh->GetProcess()->GetID(),
 146                  rfh->GetRenderViewHost()->GetRoutingID()));
 147 }
 148
 149 }  // namespace extensions