chrome/browser/ui/panels/panel_host.cc

   1 // Copyright (c) 2012 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/ui/panels/panel_host.h"
   6
   7 #include "base/bind.h"
   8 #include "base/logging.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "chrome/browser/chrome_notification_types.h"
  11 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
  12 #include "chrome/browser/extensions/window_controller.h"
  13 #include "chrome/browser/favicon/favicon_helper.h"
  14 #include "chrome/browser/profiles/profile.h"
  15 #include "chrome/browser/sessions/session_tab_helper.h"
  16 #include "chrome/browser/ui/browser_navigator.h"
  17 #include "chrome/browser/ui/panels/panel.h"
  18 #include "chrome/browser/ui/prefs/prefs_tab_helper.h"
  19 #include "components/favicon/content/content_favicon_driver.h"
  20 #include "components/ui/zoom/page_zoom.h"
  21 #include "components/ui/zoom/zoom_controller.h"
  22 #include "content/public/browser/invalidate_type.h"
  23 #include "content/public/browser/navigation_controller.h"
  24 #include "content/public/browser/notification_service.h"
  25 #include "content/public/browser/notification_source.h"
  26 #include "content/public/browser/notification_types.h"
  27 #include "content/public/browser/render_view_host.h"
  28 #include "content/public/browser/site_instance.h"
  29 #include "content/public/browser/user_metrics.h"
  30 #include "content/public/browser/web_contents.h"
  31 #include "extensions/browser/view_type_utils.h"
  32 #include "extensions/common/extension_messages.h"
  33 #include "ipc/ipc_message.h"
  34 #include "ipc/ipc_message_macros.h"
  35 #include "ui/gfx/geometry/rect.h"
  36 #include "ui/gfx/image/image.h"
  37
  38 using base::UserMetricsAction;
  39
  40 PanelHost::PanelHost(Panel* panel, Profile* profile)
  41     : panel_(panel),
  42       profile_(profile),
  43       extension_function_dispatcher_(profile, this),
  44       weak_factory_(this) {
  45 }
  46
  47 PanelHost::~PanelHost() {
  48 }
  49
  50 void PanelHost::Init(const GURL& url) {
  51   if (url.is_empty())
  52     return;
  53
  54   content::WebContents::CreateParams create_params(
  55       profile_, content::SiteInstance::CreateForURL(profile_, url));
  56   web_contents_.reset(content::WebContents::Create(create_params));
  57   extensions::SetViewType(web_contents_.get(), extensions::VIEW_TYPE_PANEL);
  58   web_contents_->SetDelegate(this);
  59   // web_contents_ may be passed to PageZoom::Zoom(), so it needs
  60   // a ZoomController.
  61   ui_zoom::ZoomController::CreateForWebContents(web_contents_.get());
  62   content::WebContentsObserver::Observe(web_contents_.get());
  63
  64   // Needed to give the web contents a Tab ID. Extension APIs
  65   // expect web contents to have a Tab ID.
  66   SessionTabHelper::CreateForWebContents(web_contents_.get());
  67   SessionTabHelper::FromWebContents(web_contents_.get())->SetWindowID(
  68       panel_->session_id());
  69
  70   favicon::CreateContentFaviconDriverForWebContents(web_contents_.get());
  71   PrefsTabHelper::CreateForWebContents(web_contents_.get());
  72   extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
  73       web_contents_.get());
  74
  75   web_contents_->GetController().LoadURL(
  76       url, content::Referrer(), ui::PAGE_TRANSITION_LINK, std::string());
  77 }
  78
  79 void PanelHost::DestroyWebContents() {
  80   // Cannot do a web_contents_.reset() because web_contents_.get() will
  81   // still return the pointer when we CHECK in WebContentsDestroyed (or if
  82   // we get called back in the middle of web contents destruction, which
  83   // WebView might do when it detects the web contents is destroyed).
  84   content::WebContents* contents = web_contents_.release();
  85   delete contents;
  86 }
  87
  88 gfx::Image PanelHost::GetPageIcon() const {
  89   if (!web_contents_.get())
  90     return gfx::Image();
  91
  92   favicon::FaviconDriver* favicon_driver =
  93       favicon::ContentFaviconDriver::FromWebContents(web_contents_.get());
  94   CHECK(favicon_driver);
  95   return favicon_driver->GetFavicon();
  96 }
  97
  98 content::WebContents* PanelHost::OpenURLFromTab(
  99     content::WebContents* source,
 100     const content::OpenURLParams& params) {
 101   // These dispositions aren't really navigations.
 102   if (params.disposition == SUPPRESS_OPEN ||
 103       params.disposition == SAVE_TO_DISK ||
 104       params.disposition == IGNORE_ACTION)
 105     return NULL;
 106
 107   // Only allow clicks on links.
 108   if (params.transition != ui::PAGE_TRANSITION_LINK)
 109     return NULL;
 110
 111   // Force all links to open in a new tab.
 112   chrome::NavigateParams navigate_params(profile_,
 113                                          params.url,
 114                                          params.transition);
 115   switch (params.disposition) {
 116     case NEW_BACKGROUND_TAB:
 117     case NEW_WINDOW:
 118     case OFF_THE_RECORD:
 119       navigate_params.disposition = params.disposition;
 120       break;
 121     default:
 122       navigate_params.disposition = NEW_FOREGROUND_TAB;
 123       break;
 124   }
 125   chrome::Navigate(&navigate_params);
 126   return navigate_params.target_contents;
 127 }
 128
 129 void PanelHost::NavigationStateChanged(content::WebContents* source,
 130                                        content::InvalidateTypes changed_flags) {
 131   // Only need to update the title if the title changed while not loading,
 132   // because the title is also updated when loading state changes.
 133   if ((changed_flags & content::INVALIDATE_TYPE_TAB) ||
 134       ((changed_flags & content::INVALIDATE_TYPE_TITLE) &&
 135        !source->IsLoading()))
 136     panel_->UpdateTitleBar();
 137 }
 138
 139 void PanelHost::AddNewContents(content::WebContents* source,
 140                                content::WebContents* new_contents,
 141                                WindowOpenDisposition disposition,
 142                                const gfx::Rect& initial_rect,
 143                                bool user_gesture,
 144                                bool* was_blocked) {
 145   chrome::NavigateParams navigate_params(profile_, new_contents->GetURL(),
 146                                          ui::PAGE_TRANSITION_LINK);
 147   navigate_params.target_contents = new_contents;
 148
 149   // Force all links to open in a new tab, even if they were trying to open a
 150   // window.
 151   navigate_params.disposition =
 152       disposition == NEW_BACKGROUND_TAB ? disposition : NEW_FOREGROUND_TAB;
 153
 154   navigate_params.window_bounds = initial_rect;
 155   navigate_params.user_gesture = user_gesture;
 156   navigate_params.extension_app_id = panel_->extension_id();
 157   chrome::Navigate(&navigate_params);
 158 }
 159
 160 void PanelHost::ActivateContents(content::WebContents* contents) {
 161   panel_->Activate();
 162 }
 163
 164 void PanelHost::DeactivateContents(content::WebContents* contents) {
 165   panel_->Deactivate();
 166 }
 167
 168 void PanelHost::LoadingStateChanged(content::WebContents* source,
 169     bool to_different_document) {
 170   bool is_loading = source->IsLoading() && to_different_document;
 171   panel_->LoadingStateChanged(is_loading);
 172 }
 173
 174 void PanelHost::CloseContents(content::WebContents* source) {
 175   panel_->Close();
 176 }
 177
 178 void PanelHost::MoveContents(content::WebContents* source,
 179                              const gfx::Rect& pos) {
 180   panel_->SetBounds(pos);
 181 }
 182
 183 bool PanelHost::IsPopupOrPanel(const content::WebContents* source) const {
 184   return true;
 185 }
 186
 187 void PanelHost::ContentsZoomChange(bool zoom_in) {
 188   Zoom(zoom_in ? content::PAGE_ZOOM_IN : content::PAGE_ZOOM_OUT);
 189 }
 190
 191 void PanelHost::HandleKeyboardEvent(
 192     content::WebContents* source,
 193     const content::NativeWebKeyboardEvent& event) {
 194   return panel_->HandleKeyboardEvent(event);
 195 }
 196
 197 void PanelHost::ResizeDueToAutoResize(content::WebContents* web_contents,
 198                                       const gfx::Size& new_size) {
 199   panel_->OnContentsAutoResized(new_size);
 200 }
 201
 202 void PanelHost::RenderViewCreated(content::RenderViewHost* render_view_host) {
 203   extensions::WindowController* window = GetExtensionWindowController();
 204   render_view_host->Send(new ExtensionMsg_UpdateBrowserWindowId(
 205       render_view_host->GetRoutingID(), window->GetWindowId()));
 206 }
 207
 208 void PanelHost::RenderProcessGone(base::TerminationStatus status) {
 209   CloseContents(web_contents_.get());
 210 }
 211
 212 void PanelHost::WebContentsDestroyed() {
 213   // Web contents should only be destroyed by us.
 214   CHECK(!web_contents_.get());
 215
 216   // Close the panel after we return to the message loop (not immediately,
 217   // otherwise, it may destroy this object before the stack has a chance
 218   // to cleanly unwind.)
 219   base::MessageLoop::current()->PostTask(
 220       FROM_HERE,
 221       base::Bind(&PanelHost::ClosePanel, weak_factory_.GetWeakPtr()));
 222 }
 223
 224 void PanelHost::ClosePanel() {
 225   panel_->Close();
 226 }
 227
 228 bool PanelHost::OnMessageReceived(const IPC::Message& message) {
 229   bool handled = true;
 230   IPC_BEGIN_MESSAGE_MAP(PanelHost, message)
 231     IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
 232     IPC_MESSAGE_UNHANDLED(handled = false)
 233   IPC_END_MESSAGE_MAP()
 234   return handled;
 235 }
 236
 237 void PanelHost::OnRequest(const ExtensionHostMsg_Request_Params& params) {
 238   if (!web_contents_.get())
 239     return;
 240
 241   extension_function_dispatcher_.Dispatch(params,
 242                                           web_contents_->GetRenderViewHost());
 243 }
 244
 245 extensions::WindowController* PanelHost::GetExtensionWindowController() const {
 246   return panel_->extension_window_controller();
 247 }
 248
 249 content::WebContents* PanelHost::GetAssociatedWebContents() const {
 250   return web_contents_.get();
 251 }
 252
 253 void PanelHost::Reload() {
 254   content::RecordAction(UserMetricsAction("Reload"));
 255   web_contents_->GetController().Reload(true);
 256 }
 257
 258 void PanelHost::ReloadIgnoringCache() {
 259   content::RecordAction(UserMetricsAction("ReloadIgnoringCache"));
 260   web_contents_->GetController().ReloadIgnoringCache(true);
 261 }
 262
 263 void PanelHost::StopLoading() {
 264   content::RecordAction(UserMetricsAction("Stop"));
 265   web_contents_->Stop();
 266 }
 267
 268 void PanelHost::Zoom(content::PageZoom zoom) {
 269   ui_zoom::PageZoom::Zoom(web_contents_.get(), zoom);
 270 }