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