balloon_host.cc revision c407dc5cd9bdc5668497f21b26b09d988ab439de 
1// Copyright (c) 2010 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 "chrome/browser/notifications/balloon_host.h"
6
7#include "chrome/browser/browser_list.h"
8#include "chrome/browser/in_process_webkit/webkit_context.h"
9#include "chrome/browser/extensions/extension_process_manager.h"
10#include "chrome/browser/notifications/balloon.h"
11#include "chrome/browser/profile.h"
12#include "chrome/browser/renderer_host/render_view_host.h"
13#include "chrome/browser/renderer_host/site_instance.h"
14#include "chrome/browser/renderer_preferences_util.h"
15#include "chrome/common/bindings_policy.h"
16#include "chrome/common/notification_service.h"
17#include "chrome/common/notification_type.h"
18#include "chrome/common/render_messages.h"
19#include "chrome/common/renderer_preferences.h"
20#include "chrome/common/url_constants.h"
21
22BalloonHost::BalloonHost(Balloon* balloon)
23    : render_view_host_(NULL),
24      balloon_(balloon),
25      initialized_(false),
26      should_notify_on_disconnect_(false) {
27  DCHECK(balloon_);
28
29  // If the notification is for an extension URL, make sure to use the extension
30  // process to render it, so that it can communicate with other views in the
31  // extension.
32  const GURL& balloon_url = balloon_->notification().content_url();
33  if (balloon_url.SchemeIs(chrome::kExtensionScheme)) {
34    site_instance_ =
35      balloon_->profile()->GetExtensionProcessManager()->GetSiteInstanceForURL(
36          balloon_url);
37  } else {
38    site_instance_ = SiteInstance::CreateSiteInstance(balloon_->profile());
39  }
40}
41
42void BalloonHost::Shutdown() {
43  if (render_view_host_) {
44    render_view_host_->Shutdown();
45    render_view_host_ = NULL;
46  }
47}
48
49WebPreferences BalloonHost::GetWebkitPrefs() {
50  WebPreferences prefs;
51  prefs.allow_scripts_to_close_windows = true;
52  return prefs;
53}
54
55void BalloonHost::Close(RenderViewHost* render_view_host) {
56  balloon_->CloseByScript();
57  NotifyDisconnect();
58}
59
60void BalloonHost::RenderViewCreated(RenderViewHost* render_view_host) {
61  render_view_host->Send(new ViewMsg_DisableScrollbarsForSmallWindows(
62      render_view_host->routing_id(), balloon_->min_scrollbar_size()));
63  render_view_host->WasResized();
64  render_view_host->EnablePreferredSizeChangedMode(
65      kPreferredSizeWidth | kPreferredSizeHeightThisIsSlow);
66}
67
68void BalloonHost::RenderViewReady(RenderViewHost* render_view_host) {
69  should_notify_on_disconnect_ = true;
70  NotificationService::current()->Notify(
71      NotificationType::NOTIFY_BALLOON_CONNECTED,
72      Source<BalloonHost>(this), NotificationService::NoDetails());
73}
74
75void BalloonHost::RenderViewGone(RenderViewHost* render_view_host) {
76  Close(render_view_host);
77}
78
79void BalloonHost::ProcessDOMUIMessage(const std::string& message,
80                                      const ListValue* content,
81                                      const GURL& source_url,
82                                      int request_id,
83                                      bool has_callback) {
84  if (extension_function_dispatcher_.get()) {
85    extension_function_dispatcher_->HandleRequest(
86        message, content, source_url, request_id, has_callback);
87  }
88}
89
90// RenderViewHostDelegate::View methods implemented to allow links to
91// open pages in new tabs.
92void BalloonHost::CreateNewWindow(
93    int route_id,
94    WindowContainerType window_container_type,
95    const string16& frame_name) {
96  delegate_view_helper_.CreateNewWindow(
97      route_id,
98      balloon_->profile(),
99      site_instance_.get(),
100      DOMUIFactory::GetDOMUIType(balloon_->notification().content_url()),
101      this,
102      window_container_type,
103      frame_name);
104}
105
106void BalloonHost::ShowCreatedWindow(int route_id,
107                                    WindowOpenDisposition disposition,
108                                    const gfx::Rect& initial_pos,
109                                    bool user_gesture) {
110  // Don't allow pop-ups from notifications.
111  if (disposition == NEW_POPUP)
112    return;
113
114  TabContents* contents = delegate_view_helper_.GetCreatedWindow(route_id);
115  if (!contents)
116    return;
117  Browser* browser = BrowserList::GetLastActiveWithProfile(balloon_->profile());
118  if (!browser)
119    return;
120
121  browser->AddTabContents(contents, disposition, initial_pos, user_gesture);
122}
123
124void BalloonHost::UpdatePreferredSize(const gfx::Size& new_size) {
125  balloon_->SetContentPreferredSize(new_size);
126}
127
128RendererPreferences BalloonHost::GetRendererPrefs(Profile* profile) const {
129  RendererPreferences preferences;
130  renderer_preferences_util::UpdateFromSystemSettings(&preferences, profile);
131  return preferences;
132}
133
134void BalloonHost::Init() {
135  DCHECK(!render_view_host_) << "BalloonViewHost already initialized.";
136  int64 session_storage_namespace_id = balloon_->profile()->GetWebKitContext()->
137      dom_storage_context()->AllocateSessionStorageNamespaceId();
138  RenderViewHost* rvh = new RenderViewHost(site_instance_.get(),
139                                           this, MSG_ROUTING_NONE,
140                                           session_storage_namespace_id);
141  if (GetProfile()->GetExtensionsService()) {
142    extension_function_dispatcher_.reset(
143        ExtensionFunctionDispatcher::Create(
144            rvh, this, balloon_->notification().content_url()));
145  }
146  if (extension_function_dispatcher_.get()) {
147    rvh->AllowBindings(BindingsPolicy::EXTENSION);
148    rvh->set_is_extension_process(true);
149  }
150
151  // Do platform-specific initialization.
152  render_view_host_ = rvh;
153  InitRenderWidgetHostView();
154  DCHECK(render_widget_host_view());
155
156  rvh->set_view(render_widget_host_view());
157  rvh->CreateRenderView(GetProfile()->GetRequestContext(), string16());
158  rvh->NavigateToURL(balloon_->notification().content_url());
159
160  initialized_ = true;
161}
162
163void BalloonHost::NotifyDisconnect() {
164  if (!should_notify_on_disconnect_)
165    return;
166
167  should_notify_on_disconnect_ = false;
168  NotificationService::current()->Notify(
169      NotificationType::NOTIFY_BALLOON_DISCONNECTED,
170      Source<BalloonHost>(this), NotificationService::NoDetails());
171}
172