apps/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 "apps/app_window_contents.h"
   6
   7 #include "apps/ui/native_app_window.h"
   8 #include "chrome/browser/chrome_notification_types.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/common/extensions/api/app_window.h"
  11 #include "chrome/common/extensions/extension_messages.h"
  12 #include "content/public/browser/browser_thread.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
  20 namespace app_window = extensions::api::app_window;
  21
  22 namespace apps {
  23
  24 AppWindowContents::AppWindowContents(ShellWindow* host)
  25     : host_(host) {
  26 }
  27
  28 AppWindowContents::~AppWindowContents() {
  29 }
  30
  31 void AppWindowContents::Initialize(Profile* profile, const GURL& url) {
  32   url_ = url;
  33
  34   extension_function_dispatcher_.reset(
  35       new ExtensionFunctionDispatcher(profile, this));
  36
  37   web_contents_.reset(content::WebContents::Create(
  38       content::WebContents::CreateParams(
  39           profile, content::SiteInstance::CreateForURL(profile, url_))));
  40
  41   content::WebContentsObserver::Observe(web_contents_.get());
  42   web_contents_->GetMutableRendererPrefs()->
  43       browser_handles_all_top_level_requests = true;
  44   web_contents_->GetRenderViewHost()->SyncRendererPrefs();
  45 }
  46
  47 void AppWindowContents::LoadContents(int32 creator_process_id) {
  48   // If the new view is in the same process as the creator, block the created
  49   // RVH from loading anything until the background page has had a chance to
  50   // do any initialization it wants. If it's a different process, the new RVH
  51   // shouldn't communicate with the background page anyway (e.g. sandboxed).
  52   if (web_contents_->GetRenderViewHost()->GetProcess()->GetID() ==
  53       creator_process_id) {
  54     SuspendRenderViewHost(web_contents_->GetRenderViewHost());
  55   } else {
  56     VLOG(1) << "ShellWindow created in new process ("
  57             << web_contents_->GetRenderViewHost()->GetProcess()->GetID()
  58             << ") != creator (" << creator_process_id
  59             << "). Routing disabled.";
  60   }
  61
  62   // TODO(jeremya): there's a bug where navigating a web contents to an
  63   // extension URL causes it to create a new RVH and discard the old (perfectly
  64   // usable) one. To work around this, we watch for a
  65   // NOTIFICATION_RENDER_VIEW_HOST_CHANGED message from the web contents (which
  66   // will be sent during LoadURL) and suspend resource requests on the new RVH
  67   // to ensure that we block the new RVH from loading anything. It should be
  68   // okay to remove the NOTIFICATION_RENDER_VIEW_HOST_CHANGED registration once
  69   // http://crbug.com/123007 is fixed.
  70   registrar_.Add(this, content::NOTIFICATION_RENDER_VIEW_HOST_CHANGED,
  71                  content::Source<content::WebContents>(web_contents()));
  72   web_contents_->GetController().LoadURL(
  73       url_, content::Referrer(), content::PAGE_TRANSITION_LINK,
  74       std::string());
  75   registrar_.RemoveAll();
  76 }
  77
  78 void AppWindowContents::NativeWindowChanged(
  79     NativeAppWindow* native_app_window) {
  80   base::ListValue args;
  81   DictionaryValue* dictionary = new DictionaryValue();
  82   args.Append(dictionary);
  83
  84   gfx::Rect bounds = host_->GetClientBounds();
  85   app_window::Bounds update;
  86   update.left.reset(new int(bounds.x()));
  87   update.top.reset(new int(bounds.y()));
  88   update.width.reset(new int(bounds.width()));
  89   update.height.reset(new int(bounds.height()));
  90   dictionary->Set("bounds", update.ToValue().release());
  91   dictionary->SetBoolean("fullscreen",
  92                          native_app_window->IsFullscreenOrPending());
  93   dictionary->SetBoolean("minimized", native_app_window->IsMinimized());
  94   dictionary->SetBoolean("maximized", native_app_window->IsMaximized());
  95   dictionary->SetBoolean("alwaysOnTop", native_app_window->IsAlwaysOnTop());
  96
  97   content::RenderViewHost* rvh = web_contents_->GetRenderViewHost();
  98   rvh->Send(new ExtensionMsg_MessageInvoke(rvh->GetRoutingID(),
  99                                            host_->extension_id(),
 100                                            "app.window",
 101                                            "updateAppWindowProperties",
 102                                            args,
 103                                            false));
 104 }
 105
 106 void AppWindowContents::NativeWindowClosed() {
 107   content::RenderViewHost* rvh = web_contents_->GetRenderViewHost();
 108   rvh->Send(new ExtensionMsg_AppWindowClosed(rvh->GetRoutingID()));
 109 }
 110
 111 content::WebContents* AppWindowContents::GetWebContents() const {
 112   return web_contents_.get();
 113 }
 114
 115 void AppWindowContents::Observe(
 116     int type,
 117     const content::NotificationSource& source,
 118     const content::NotificationDetails& details) {
 119   switch (type) {
 120     case content::NOTIFICATION_RENDER_VIEW_HOST_CHANGED: {
 121       // TODO(jeremya): once http://crbug.com/123007 is fixed, we'll no longer
 122       // need to suspend resource requests here (the call in the constructor
 123       // should be enough).
 124       content::Details<std::pair<content::RenderViewHost*,
 125                                  content::RenderViewHost*> >
 126           host_details(details);
 127       if (host_details->first)
 128         SuspendRenderViewHost(host_details->second);
 129       break;
 130     }
 131     default:
 132       NOTREACHED() << "Received unexpected notification";
 133   }
 134 }
 135
 136 bool AppWindowContents::OnMessageReceived(const IPC::Message& message) {
 137   bool handled = true;
 138   IPC_BEGIN_MESSAGE_MAP(AppWindowContents, message)
 139     IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
 140     IPC_MESSAGE_HANDLER(ExtensionHostMsg_UpdateDraggableRegions,
 141                         UpdateDraggableRegions)
 142     IPC_MESSAGE_UNHANDLED(handled = false)
 143   IPC_END_MESSAGE_MAP()
 144   return handled;
 145 }
 146
 147 extensions::WindowController*
 148 AppWindowContents::GetExtensionWindowController() const {
 149   return NULL;
 150 }
 151
 152 content::WebContents* AppWindowContents::GetAssociatedWebContents() const {
 153   return web_contents_.get();
 154 }
 155
 156 void AppWindowContents::OnRequest(
 157     const ExtensionHostMsg_Request_Params& params) {
 158   extension_function_dispatcher_->Dispatch(
 159       params, web_contents_->GetRenderViewHost());
 160 }
 161
 162 void AppWindowContents::UpdateDraggableRegions(
 163     const std::vector<extensions::DraggableRegion>& regions) {
 164   host_->UpdateDraggableRegions(regions);
 165 }
 166
 167 void AppWindowContents::SuspendRenderViewHost(
 168     content::RenderViewHost* rvh) {
 169   DCHECK(rvh);
 170   content::BrowserThread::PostTask(
 171       content::BrowserThread::IO, FROM_HERE,
 172       base::Bind(&content::ResourceDispatcherHost::BlockRequestsForRoute,
 173                  base::Unretained(content::ResourceDispatcherHost::Get()),
 174                  rvh->GetProcess()->GetID(), rvh->GetRoutingID()));
 175 }
 176
 177 }  // namespace apps