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_tab_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/ui/zoom/page_zoom.h"
  20 #include "components/ui/zoom/zoom_controller.h"
  21 #include "content/public/browser/invalidate_type.h"
  22 #include "content/public/browser/navigation_controller.h"
  23 #include "content/public/browser/notification_service.h"
  24 #include "content/public/browser/notification_source.h"
  25 #include "content/public/browser/notification_types.h"
  26 #include "content/public/browser/render_view_host.h"
  27 #include "content/public/browser/site_instance.h"
  28 #include "content/public/browser/user_metrics.h"
  29 #include "content/public/browser/web_contents.h"
  30 #include "extensions/browser/view_type_utils.h"
  31 #include "extensions/common/extension_messages.h"
  32 #include "ipc/ipc_message.h"
  33 #include "ipc/ipc_message_macros.h"
  34 #include "ui/gfx/geometry/rect.h"
  35 #include "ui/gfx/image/image.h"
  36
  37 using base::UserMetricsAction;
  38
  39 PanelHost::PanelHost(Panel* panel, Profile* profile)
  40     : panel_(panel),
  41       profile_(profile),
  42       extension_function_dispatcher_(profile, this),
  43       weak_factory_(this) {
  44 }
  45
  46 PanelHost::~PanelHost() {
  47 }
  48
  49 void PanelHost::Init(const GURL& url) {
  50   if (url.is_empty())
  51     return;
  52
  53   content::WebContents::CreateParams create_params(
  54       profile_, content::SiteInstance::CreateForURL(profile_, url));
  55   web_contents_.reset(content::WebContents::Create(create_params));
  56   extensions::SetViewType(web_contents_.get(), extensions::VIEW_TYPE_PANEL);
  57   web_contents_->SetDelegate(this);
  58   // web_contents_ may be passed to PageZoom::Zoom(), so it needs
  59   // a ZoomController.
  60   ui_zoom::ZoomController::CreateForWebContents(web_contents_.get());
  61   content::WebContentsObserver::Observe(web_contents_.get());
  62
  63   // Needed to give the web contents a Tab ID. Extension APIs
  64   // expect web contents to have a Tab ID.
  65   SessionTabHelper::CreateForWebContents(web_contents_.get());
  66   SessionTabHelper::FromWebContents(web_contents_.get())->SetWindowID(
  67       panel_->session_id());
  68
  69   FaviconTabHelper::CreateForWebContents(web_contents_.get());
  70   PrefsTabHelper::CreateForWebContents(web_contents_.get());
  71   extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
  72       web_contents_.get());
  73
  74   web_contents_->GetController().LoadURL(
  75       url, content::Referrer(), ui::PAGE_TRANSITION_LINK, std::string());
  76 }
  77
  78 void PanelHost::DestroyWebContents() {
  79   // Cannot do a web_contents_.reset() because web_contents_.get() will
  80   // still return the pointer when we CHECK in WebContentsDestroyed (or if
  81   // we get called back in the middle of web contents destruction, which
  82   // WebView might do when it detects the web contents is destroyed).
  83   content::WebContents* contents = web_contents_.release();
  84   delete contents;
  85 }
  86
  87 gfx::Image PanelHost::GetPageIcon() const {
  88   if (!web_contents_.get())
  89     return gfx::Image();
  90
  91   FaviconTabHelper* favicon_tab_helper =
  92       FaviconTabHelper::FromWebContents(web_contents_.get());
  93   CHECK(favicon_tab_helper);
  94   return favicon_tab_helper->GetFavicon();
  95 }
  96
  97 content::WebContents* PanelHost::OpenURLFromTab(
  98     content::WebContents* source,
  99     const content::OpenURLParams& params) {
 100   // These dispositions aren't really navigations.
 101   if (params.disposition == SUPPRESS_OPEN ||
 102       params.disposition == SAVE_TO_DISK ||
 103       params.disposition == IGNORE_ACTION)
 104     return NULL;
 105
 106   // Only allow clicks on links.
 107   if (params.transition != ui::PAGE_TRANSITION_LINK)
 108     return NULL;
 109
 110   // Force all links to open in a new tab.
 111   chrome::NavigateParams navigate_params(profile_,
 112                                          params.url,
 113                                          params.transition);
 114   switch (params.disposition) {
 115     case NEW_BACKGROUND_TAB:
 116     case NEW_WINDOW:
 117     case OFF_THE_RECORD:
 118       navigate_params.disposition = params.disposition;
 119       break;
 120     default:
 121       navigate_params.disposition = NEW_FOREGROUND_TAB;
 122       break;
 123   }
 124   chrome::Navigate(&navigate_params);
 125   return navigate_params.target_contents;
 126 }
 127
 128 void PanelHost::NavigationStateChanged(content::WebContents* source,
 129                                        content::InvalidateTypes changed_flags) {
 130   // Only need to update the title if the title changed while not loading,
 131   // because the title is also updated when loading state changes.
 132   if ((changed_flags & content::INVALIDATE_TYPE_TAB) ||
 133       ((changed_flags & content::INVALIDATE_TYPE_TITLE) &&
 134        !source->IsLoading()))
 135     panel_->UpdateTitleBar();
 136 }
 137
 138 void PanelHost::AddNewContents(content::WebContents* source,
 139                                content::WebContents* new_contents,
 140                                WindowOpenDisposition disposition,
 141                                const gfx::Rect& initial_rect,
 142                                bool user_gesture,
 143                                bool* was_blocked) {
 144   chrome::NavigateParams navigate_params(profile_, new_contents->GetURL(),
 145                                          ui::PAGE_TRANSITION_LINK);
 146   navigate_params.target_contents = new_contents;
 147
 148   // Force all links to open in a new tab, even if they were trying to open a
 149   // window.
 150   navigate_params.disposition =
 151       disposition == NEW_BACKGROUND_TAB ? disposition : NEW_FOREGROUND_TAB;
 152
 153   navigate_params.window_bounds = initial_rect;
 154   navigate_params.user_gesture = user_gesture;
 155   navigate_params.extension_app_id = panel_->extension_id();
 156   chrome::Navigate(&navigate_params);
 157 }
 158
 159 void PanelHost::ActivateContents(content::WebContents* contents) {
 160   panel_->Activate();
 161 }
 162
 163 void PanelHost::DeactivateContents(content::WebContents* contents) {
 164   panel_->Deactivate();
 165 }
 166
 167 void PanelHost::LoadingStateChanged(content::WebContents* source,
 168     bool to_different_document) {
 169   bool is_loading = source->IsLoading() && to_different_document;
 170   panel_->LoadingStateChanged(is_loading);
 171 }
 172
 173 void PanelHost::CloseContents(content::WebContents* source) {
 174   panel_->Close();
 175 }
 176
 177 void PanelHost::MoveContents(content::WebContents* source,
 178                              const gfx::Rect& pos) {
 179   panel_->SetBounds(pos);
 180 }
 181
 182 bool PanelHost::IsPopupOrPanel(const content::WebContents* source) const {
 183   return true;
 184 }
 185
 186 void PanelHost::ContentsZoomChange(bool zoom_in) {
 187   Zoom(zoom_in ? content::PAGE_ZOOM_IN : content::PAGE_ZOOM_OUT);
 188 }
 189
 190 void PanelHost::HandleKeyboardEvent(
 191     content::WebContents* source,
 192     const content::NativeWebKeyboardEvent& event) {
 193   return panel_->HandleKeyboardEvent(event);
 194 }
 195
 196 void PanelHost::WebContentsFocused(content::WebContents* contents) {
 197   panel_->WebContentsFocused(contents);
 198 }
 199
 200 void PanelHost::ResizeDueToAutoResize(content::WebContents* web_contents,
 201                                       const gfx::Size& new_size) {
 202   panel_->OnContentsAutoResized(new_size);
 203 }
 204
 205 void PanelHost::RenderViewCreated(content::RenderViewHost* render_view_host) {
 206   extensions::WindowController* window = GetExtensionWindowController();
 207   render_view_host->Send(new ExtensionMsg_UpdateBrowserWindowId(
 208       render_view_host->GetRoutingID(), window->GetWindowId()));
 209 }
 210
 211 void PanelHost::RenderProcessGone(base::TerminationStatus status) {
 212   CloseContents(web_contents_.get());
 213 }
 214
 215 void PanelHost::WebContentsDestroyed() {
 216   // Web contents should only be destroyed by us.
 217   CHECK(!web_contents_.get());
 218
 219   // Close the panel after we return to the message loop (not immediately,
 220   // otherwise, it may destroy this object before the stack has a chance
 221   // to cleanly unwind.)
 222   base::MessageLoop::current()->PostTask(
 223       FROM_HERE,
 224       base::Bind(&PanelHost::ClosePanel, weak_factory_.GetWeakPtr()));
 225 }
 226
 227 void PanelHost::ClosePanel() {
 228   panel_->Close();
 229 }
 230
 231 bool PanelHost::OnMessageReceived(const IPC::Message& message) {
 232   bool handled = true;
 233   IPC_BEGIN_MESSAGE_MAP(PanelHost, message)
 234     IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
 235     IPC_MESSAGE_UNHANDLED(handled = false)
 236   IPC_END_MESSAGE_MAP()
 237   return handled;
 238 }
 239
 240 void PanelHost::OnRequest(const ExtensionHostMsg_Request_Params& params) {
 241   if (!web_contents_.get())
 242     return;
 243
 244   extension_function_dispatcher_.Dispatch(params,
 245                                           web_contents_->GetRenderViewHost());
 246 }
 247
 248 extensions::WindowController* PanelHost::GetExtensionWindowController() const {
 249   return panel_->extension_window_controller();
 250 }
 251
 252 content::WebContents* PanelHost::GetAssociatedWebContents() const {
 253   return web_contents_.get();
 254 }
 255
 256 void PanelHost::Reload() {
 257   content::RecordAction(UserMetricsAction("Reload"));
 258   web_contents_->GetController().Reload(true);
 259 }
 260
 261 void PanelHost::ReloadIgnoringCache() {
 262   content::RecordAction(UserMetricsAction("ReloadIgnoringCache"));
 263   web_contents_->GetController().ReloadIgnoringCache(true);
 264 }
 265
 266 void PanelHost::StopLoading() {
 267   content::RecordAction(UserMetricsAction("Stop"));
 268   web_contents_->Stop();
 269 }
 270
 271 void PanelHost::Zoom(content::PageZoom zoom) {
 272   ui_zoom::PageZoom::Zoom(web_contents_.get(), zoom);
 273 }