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| 1 // Copyright 2014 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 "extensions/browser/guest_view/guest_view_base.h" | |
| 6 | |
| 7 #include "base/lazy_instance.h" | |
| 8 #include "base/strings/utf_string_conversions.h" | |
| 9 #include "components/ui/zoom/page_zoom.h" | |
| 10 #include "components/ui/zoom/zoom_controller.h" | |
| 11 #include "content/public/browser/navigation_details.h" | |
| 12 #include "content/public/browser/render_frame_host.h" | |
| 13 #include "content/public/browser/render_process_host.h" | |
| 14 #include "content/public/browser/render_view_host.h" | |
| 15 #include "content/public/browser/render_widget_host_view.h" | |
| 16 #include "content/public/browser/web_contents.h" | |
| 17 #include "content/public/common/page_zoom.h" | |
| 18 #include "content/public/common/url_constants.h" | |
| 19 #include "extensions/browser/guest_view/guest_view_event.h" | |
| 20 #include "extensions/browser/guest_view/guest_view_manager.h" | |
| 21 #include "extensions/common/guest_view/guest_view_constants.h" | |
| 22 #include "extensions/common/guest_view/guest_view_messages.h" | |
| 23 #include "third_party/WebKit/public/web/WebInputEvent.h" | |
| 24 | |
| 25 using content::WebContents; | |
| 26 | |
| 27 namespace content { | |
| 28 struct FrameNavigateParams; | |
| 29 } | |
| 30 | |
| 31 namespace extensions { | |
| 32 | |
| 33 namespace { | |
| 34 | |
| 35 using WebContentsGuestViewMap = std::map<const WebContents*, GuestViewBase*>; | |
| 36 static base::LazyInstance<WebContentsGuestViewMap> webcontents_guestview_map = | |
| 37 LAZY_INSTANCE_INITIALIZER; | |
| 38 | |
| 39 } // namespace | |
| 40 | |
| 41 SetSizeParams::SetSizeParams() { | |
| 42 } | |
| 43 SetSizeParams::~SetSizeParams() { | |
| 44 } | |
| 45 | |
| 46 // This observer ensures that the GuestViewBase destroys itself when its | |
| 47 // embedder goes away. It also tracks when the embedder's fullscreen is | |
| 48 // toggled so the guest can change itself accordingly. | |
| 49 class GuestViewBase::OwnerContentsObserver : public WebContentsObserver { | |
| 50 public: | |
| 51 OwnerContentsObserver(GuestViewBase* guest, | |
| 52 content::WebContents* embedder_web_contents) | |
| 53 : WebContentsObserver(embedder_web_contents), | |
| 54 is_fullscreen_(false), | |
| 55 destroyed_(false), | |
| 56 guest_(guest) {} | |
| 57 | |
| 58 ~OwnerContentsObserver() override {} | |
| 59 | |
| 60 // WebContentsObserver implementation. | |
| 61 void WebContentsDestroyed() override { | |
| 62 // If the embedder is destroyed then destroy the guest. | |
| 63 Destroy(); | |
| 64 } | |
| 65 | |
| 66 void DidNavigateMainFrame( | |
| 67 const content::LoadCommittedDetails& details, | |
| 68 const content::FrameNavigateParams& params) override { | |
| 69 // If the embedder navigates to a different page then destroy the guest. | |
| 70 if (details.is_navigation_to_different_page()) | |
| 71 Destroy(); | |
| 72 } | |
| 73 | |
| 74 void RenderProcessGone(base::TerminationStatus status) override { | |
| 75 // If the embedder crashes, then destroy the guest. | |
| 76 Destroy(); | |
| 77 } | |
| 78 | |
| 79 void DidToggleFullscreenModeForTab(bool entered_fullscreen) override { | |
| 80 if (destroyed_) | |
| 81 return; | |
| 82 | |
| 83 is_fullscreen_ = entered_fullscreen; | |
| 84 guest_->EmbedderFullscreenToggled(is_fullscreen_); | |
| 85 } | |
| 86 | |
| 87 void MainFrameWasResized(bool width_changed) override { | |
| 88 if (destroyed_) | |
| 89 return; | |
| 90 | |
| 91 if (!web_contents()->GetDelegate()) | |
| 92 return; | |
| 93 | |
| 94 bool current_fullscreen = | |
| 95 web_contents()->GetDelegate()->IsFullscreenForTabOrPending( | |
| 96 web_contents()); | |
| 97 if (is_fullscreen_ && !current_fullscreen) { | |
| 98 is_fullscreen_ = false; | |
| 99 guest_->EmbedderFullscreenToggled(is_fullscreen_); | |
| 100 } | |
| 101 } | |
| 102 | |
| 103 private: | |
| 104 bool is_fullscreen_; | |
| 105 bool destroyed_; | |
| 106 GuestViewBase* guest_; | |
| 107 | |
| 108 void Destroy() { | |
| 109 if (destroyed_) | |
| 110 return; | |
| 111 | |
| 112 destroyed_ = true; | |
| 113 guest_->EmbedderWillBeDestroyed(); | |
| 114 guest_->Destroy(); | |
| 115 } | |
| 116 | |
| 117 DISALLOW_COPY_AND_ASSIGN(OwnerContentsObserver); | |
| 118 }; | |
| 119 | |
| 120 // This observer ensures that the GuestViewBase destroys itself when its | |
| 121 // embedder goes away. | |
| 122 class GuestViewBase::OpenerLifetimeObserver : public WebContentsObserver { | |
| 123 public: | |
| 124 OpenerLifetimeObserver(GuestViewBase* guest) | |
| 125 : WebContentsObserver(guest->GetOpener()->web_contents()), | |
| 126 guest_(guest) {} | |
| 127 | |
| 128 ~OpenerLifetimeObserver() override {} | |
| 129 | |
| 130 // WebContentsObserver implementation. | |
| 131 void WebContentsDestroyed() override { | |
| 132 if (guest_->attached()) | |
| 133 return; | |
| 134 | |
| 135 // If the opener is destroyed then destroy the guest. | |
| 136 guest_->Destroy(); | |
| 137 } | |
| 138 | |
| 139 private: | |
| 140 GuestViewBase* guest_; | |
| 141 | |
| 142 DISALLOW_COPY_AND_ASSIGN(OpenerLifetimeObserver); | |
| 143 }; | |
| 144 | |
| 145 GuestViewBase::GuestViewBase(content::WebContents* owner_web_contents) | |
| 146 : owner_web_contents_(owner_web_contents), | |
| 147 browser_context_(owner_web_contents->GetBrowserContext()), | |
| 148 guest_instance_id_( | |
| 149 GuestViewManager::FromBrowserContext(browser_context_)-> | |
| 150 GetNextInstanceID()), | |
| 151 view_instance_id_(guestview::kInstanceIDNone), | |
| 152 element_instance_id_(guestview::kInstanceIDNone), | |
| 153 initialized_(false), | |
| 154 is_being_destroyed_(false), | |
| 155 guest_host_(nullptr), | |
| 156 auto_size_enabled_(false), | |
| 157 is_full_page_plugin_(false), | |
| 158 guest_proxy_routing_id_(MSG_ROUTING_NONE), | |
| 159 weak_ptr_factory_(this) { | |
| 160 owner_host_ = GuestViewManager::FromBrowserContext(browser_context_)-> | |
| 161 IsOwnedByExtension(this) ? | |
| 162 owner_web_contents->GetLastCommittedURL().host() : std::string(); | |
| 163 } | |
| 164 | |
| 165 void GuestViewBase::Init(const base::DictionaryValue& create_params, | |
| 166 const WebContentsCreatedCallback& callback) { | |
| 167 if (initialized_) | |
| 168 return; | |
| 169 initialized_ = true; | |
| 170 | |
| 171 if (!GuestViewManager::FromBrowserContext(browser_context_)-> | |
| 172 IsGuestAvailableToContext(this)) { | |
| 173 // The derived class did not create a WebContents so this class serves no | |
| 174 // purpose. Let's self-destruct. | |
| 175 delete this; | |
| 176 callback.Run(nullptr); | |
| 177 return; | |
| 178 } | |
| 179 | |
| 180 scoped_ptr<base::DictionaryValue> params(create_params.DeepCopy()); | |
| 181 CreateWebContents(create_params, | |
| 182 base::Bind(&GuestViewBase::CompleteInit, | |
| 183 weak_ptr_factory_.GetWeakPtr(), | |
| 184 base::Passed(¶ms), | |
| 185 callback)); | |
| 186 } | |
| 187 | |
| 188 void GuestViewBase::InitWithWebContents( | |
| 189 const base::DictionaryValue& create_params, | |
| 190 content::WebContents* guest_web_contents) { | |
| 191 DCHECK(guest_web_contents); | |
| 192 | |
| 193 // Create a ZoomController to allow the guest's contents to be zoomed. | |
| 194 // Do this before adding the GuestView as a WebContents Observer so that | |
| 195 // the GuestView and its derived classes can re-configure the ZoomController | |
| 196 // after the latter has handled WebContentsObserver events (observers are | |
| 197 // notified of events in the same order they are added as observers). For | |
| 198 // example, GuestViewBase may wish to put its guest into isolated zoom mode | |
| 199 // in DidNavigateMainFrame, but since ZoomController always resets to default | |
| 200 // zoom mode on this event, GuestViewBase would need to do so after | |
| 201 // ZoomController::DidNavigateMainFrame has completed. | |
| 202 ui_zoom::ZoomController::CreateForWebContents(guest_web_contents); | |
| 203 | |
| 204 // At this point, we have just created the guest WebContents, we need to add | |
| 205 // an observer to the owner WebContents. This observer will be responsible | |
| 206 // for destroying the guest WebContents if the owner goes away. | |
| 207 owner_contents_observer_.reset( | |
| 208 new OwnerContentsObserver(this, owner_web_contents_)); | |
| 209 | |
| 210 WebContentsObserver::Observe(guest_web_contents); | |
| 211 guest_web_contents->SetDelegate(this); | |
| 212 webcontents_guestview_map.Get().insert( | |
| 213 std::make_pair(guest_web_contents, this)); | |
| 214 GuestViewManager::FromBrowserContext(browser_context_)-> | |
| 215 AddGuest(guest_instance_id_, guest_web_contents); | |
| 216 | |
| 217 // Populate the view instance ID if we have it on creation. | |
| 218 create_params.GetInteger(guestview::kParameterInstanceId, | |
| 219 &view_instance_id_); | |
| 220 | |
| 221 if (CanRunInDetachedState()) | |
| 222 SetUpSizing(create_params); | |
| 223 | |
| 224 // Observe guest zoom changes. | |
| 225 auto zoom_controller = | |
| 226 ui_zoom::ZoomController::FromWebContents(web_contents()); | |
| 227 zoom_controller->AddObserver(this); | |
| 228 | |
| 229 // Give the derived class an opportunity to perform additional initialization. | |
| 230 DidInitialize(create_params); | |
| 231 } | |
| 232 | |
| 233 void GuestViewBase::LoadURLWithParams( | |
| 234 const content::NavigationController::LoadURLParams& load_params) { | |
| 235 int guest_proxy_routing_id = host()->LoadURLWithParams(load_params); | |
| 236 DCHECK(guest_proxy_routing_id_ == MSG_ROUTING_NONE || | |
| 237 guest_proxy_routing_id == guest_proxy_routing_id_); | |
| 238 guest_proxy_routing_id_ = guest_proxy_routing_id; | |
| 239 } | |
| 240 | |
| 241 void GuestViewBase::DispatchOnResizeEvent(const gfx::Size& old_size, | |
| 242 const gfx::Size& new_size) { | |
| 243 if (new_size == old_size) | |
| 244 return; | |
| 245 | |
| 246 // Dispatch the onResize event. | |
| 247 scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue()); | |
| 248 args->SetInteger(guestview::kOldWidth, old_size.width()); | |
| 249 args->SetInteger(guestview::kOldHeight, old_size.height()); | |
| 250 args->SetInteger(guestview::kNewWidth, new_size.width()); | |
| 251 args->SetInteger(guestview::kNewHeight, new_size.height()); | |
| 252 DispatchEventToGuestProxy( | |
| 253 new GuestViewEvent(guestview::kEventResize, args.Pass())); | |
| 254 } | |
| 255 | |
| 256 gfx::Size GuestViewBase::GetDefaultSize() const { | |
| 257 if (is_full_page_plugin()) { | |
| 258 // Full page plugins default to the size of the owner's viewport. | |
| 259 return owner_web_contents() | |
| 260 ->GetRenderWidgetHostView() | |
| 261 ->GetVisibleViewportSize(); | |
| 262 } else { | |
| 263 return gfx::Size(guestview::kDefaultWidth, guestview::kDefaultHeight); | |
| 264 } | |
| 265 } | |
| 266 | |
| 267 void GuestViewBase::SetSize(const SetSizeParams& params) { | |
| 268 bool enable_auto_size = | |
| 269 params.enable_auto_size ? *params.enable_auto_size : auto_size_enabled_; | |
| 270 gfx::Size min_size = params.min_size ? *params.min_size : min_auto_size_; | |
| 271 gfx::Size max_size = params.max_size ? *params.max_size : max_auto_size_; | |
| 272 | |
| 273 if (params.normal_size) | |
| 274 normal_size_ = *params.normal_size; | |
| 275 | |
| 276 min_auto_size_ = min_size; | |
| 277 min_auto_size_.SetToMin(max_size); | |
| 278 max_auto_size_ = max_size; | |
| 279 max_auto_size_.SetToMax(min_size); | |
| 280 | |
| 281 enable_auto_size &= !min_auto_size_.IsEmpty() && !max_auto_size_.IsEmpty() && | |
| 282 IsAutoSizeSupported(); | |
| 283 | |
| 284 content::RenderViewHost* rvh = web_contents()->GetRenderViewHost(); | |
| 285 if (enable_auto_size) { | |
| 286 // Autosize is being enabled. | |
| 287 rvh->EnableAutoResize(min_auto_size_, max_auto_size_); | |
| 288 normal_size_.SetSize(0, 0); | |
| 289 } else { | |
| 290 // Autosize is being disabled. | |
| 291 // Use default width/height if missing from partially defined normal size. | |
| 292 if (normal_size_.width() && !normal_size_.height()) | |
| 293 normal_size_.set_height(GetDefaultSize().height()); | |
| 294 if (!normal_size_.width() && normal_size_.height()) | |
| 295 normal_size_.set_width(GetDefaultSize().width()); | |
| 296 | |
| 297 gfx::Size new_size; | |
| 298 if (!normal_size_.IsEmpty()) { | |
| 299 new_size = normal_size_; | |
| 300 } else if (!guest_size_.IsEmpty()) { | |
| 301 new_size = guest_size_; | |
| 302 } else { | |
| 303 new_size = GetDefaultSize(); | |
| 304 } | |
| 305 | |
| 306 if (auto_size_enabled_) { | |
| 307 // Autosize was previously enabled. | |
| 308 rvh->DisableAutoResize(new_size); | |
| 309 GuestSizeChangedDueToAutoSize(guest_size_, new_size); | |
| 310 } else { | |
| 311 // Autosize was already disabled. | |
| 312 guest_host_->SizeContents(new_size); | |
| 313 } | |
| 314 | |
| 315 DispatchOnResizeEvent(guest_size_, new_size); | |
| 316 guest_size_ = new_size; | |
| 317 } | |
| 318 | |
| 319 auto_size_enabled_ = enable_auto_size; | |
| 320 } | |
| 321 | |
| 322 // static | |
| 323 GuestViewBase* GuestViewBase::FromWebContents(const WebContents* web_contents) { | |
| 324 WebContentsGuestViewMap* guest_map = webcontents_guestview_map.Pointer(); | |
| 325 auto it = guest_map->find(web_contents); | |
| 326 return it == guest_map->end() ? nullptr : it->second; | |
| 327 } | |
| 328 | |
| 329 // static | |
| 330 GuestViewBase* GuestViewBase::From(int owner_process_id, | |
| 331 int guest_instance_id) { | |
| 332 auto host = content::RenderProcessHost::FromID(owner_process_id); | |
| 333 if (!host) | |
| 334 return nullptr; | |
| 335 | |
| 336 content::WebContents* guest_web_contents = | |
| 337 GuestViewManager::FromBrowserContext( | |
| 338 host->GetBrowserContext())-> | |
| 339 GetGuestByInstanceIDSafely(guest_instance_id, owner_process_id); | |
| 340 if (!guest_web_contents) | |
| 341 return nullptr; | |
| 342 | |
| 343 return GuestViewBase::FromWebContents(guest_web_contents); | |
| 344 } | |
| 345 | |
| 346 // static | |
| 347 WebContents* GuestViewBase::GetTopLevelWebContents(WebContents* web_contents) { | |
| 348 while (GuestViewBase* guest = FromWebContents(web_contents)) | |
| 349 web_contents = guest->owner_web_contents(); | |
| 350 return web_contents; | |
| 351 } | |
| 352 | |
| 353 // static | |
| 354 bool GuestViewBase::IsGuest(WebContents* web_contents) { | |
| 355 return !!GuestViewBase::FromWebContents(web_contents); | |
| 356 } | |
| 357 | |
| 358 bool GuestViewBase::IsAutoSizeSupported() const { | |
| 359 return false; | |
| 360 } | |
| 361 | |
| 362 bool GuestViewBase::IsPreferredSizeModeEnabled() const { | |
| 363 return false; | |
| 364 } | |
| 365 | |
| 366 bool GuestViewBase::IsDragAndDropEnabled() const { | |
| 367 return false; | |
| 368 } | |
| 369 | |
| 370 bool GuestViewBase::ZoomPropagatesFromEmbedderToGuest() const { | |
| 371 return true; | |
| 372 } | |
| 373 | |
| 374 content::WebContents* GuestViewBase::CreateNewGuestWindow( | |
| 375 const content::WebContents::CreateParams& create_params) { | |
| 376 auto guest_manager = GuestViewManager::FromBrowserContext(browser_context()); | |
| 377 return guest_manager->CreateGuestWithWebContentsParams( | |
| 378 GetViewType(), | |
| 379 owner_web_contents(), | |
| 380 create_params); | |
| 381 } | |
| 382 | |
| 383 void GuestViewBase::DidAttach(int guest_proxy_routing_id) { | |
| 384 DCHECK(guest_proxy_routing_id_ == MSG_ROUTING_NONE || | |
| 385 guest_proxy_routing_id == guest_proxy_routing_id_); | |
| 386 guest_proxy_routing_id_ = guest_proxy_routing_id; | |
| 387 | |
| 388 opener_lifetime_observer_.reset(); | |
| 389 | |
| 390 SetUpSizing(*attach_params()); | |
| 391 | |
| 392 // Give the derived class an opportunity to perform some actions. | |
| 393 DidAttachToEmbedder(); | |
| 394 | |
| 395 // Inform the associated GuestViewContainer that the contentWindow is ready. | |
| 396 embedder_web_contents()->Send(new GuestViewMsg_GuestAttached( | |
| 397 element_instance_id_, | |
| 398 guest_proxy_routing_id)); | |
| 399 | |
| 400 SendQueuedEvents(); | |
| 401 } | |
| 402 | |
| 403 void GuestViewBase::DidDetach() { | |
| 404 GuestViewManager::FromBrowserContext(browser_context_)->DetachGuest(this); | |
| 405 StopTrackingEmbedderZoomLevel(); | |
| 406 owner_web_contents()->Send(new GuestViewMsg_GuestDetached( | |
| 407 element_instance_id_)); | |
| 408 element_instance_id_ = guestview::kInstanceIDNone; | |
| 409 } | |
| 410 | |
| 411 WebContents* GuestViewBase::GetOwnerWebContents() const { | |
| 412 return owner_web_contents_; | |
| 413 } | |
| 414 | |
| 415 void GuestViewBase::GuestSizeChanged(const gfx::Size& new_size) { | |
| 416 if (!auto_size_enabled_) | |
| 417 return; | |
| 418 GuestSizeChangedDueToAutoSize(guest_size_, new_size); | |
| 419 DispatchOnResizeEvent(guest_size_, new_size); | |
| 420 guest_size_ = new_size; | |
| 421 } | |
| 422 | |
| 423 const GURL& GuestViewBase::GetOwnerSiteURL() const { | |
| 424 return owner_web_contents()->GetLastCommittedURL(); | |
| 425 } | |
| 426 | |
| 427 void GuestViewBase::Destroy() { | |
| 428 if (is_being_destroyed_) | |
| 429 return; | |
| 430 | |
| 431 is_being_destroyed_ = true; | |
| 432 | |
| 433 // It is important to clear owner_web_contents_ after the call to | |
| 434 // StopTrackingEmbedderZoomLevel(), but before the rest of | |
| 435 // the statements in this function. | |
| 436 StopTrackingEmbedderZoomLevel(); | |
| 437 owner_web_contents_ = nullptr; | |
| 438 | |
| 439 DCHECK(web_contents()); | |
| 440 | |
| 441 // Give the derived class an opportunity to perform some cleanup. | |
| 442 WillDestroy(); | |
| 443 | |
| 444 // Invalidate weak pointers now so that bound callbacks cannot be called late | |
| 445 // into destruction. We must call this after WillDestroy because derived types | |
| 446 // may wish to access their openers. | |
| 447 weak_ptr_factory_.InvalidateWeakPtrs(); | |
| 448 | |
| 449 // Give the content module an opportunity to perform some cleanup. | |
| 450 guest_host_->WillDestroy(); | |
| 451 guest_host_ = nullptr; | |
| 452 | |
| 453 webcontents_guestview_map.Get().erase(web_contents()); | |
| 454 GuestViewManager::FromBrowserContext(browser_context_)-> | |
| 455 RemoveGuest(guest_instance_id_); | |
| 456 pending_events_.clear(); | |
| 457 | |
| 458 delete web_contents(); | |
| 459 } | |
| 460 | |
| 461 void GuestViewBase::SetAttachParams(const base::DictionaryValue& params) { | |
| 462 attach_params_.reset(params.DeepCopy()); | |
| 463 attach_params_->GetInteger(guestview::kParameterInstanceId, | |
| 464 &view_instance_id_); | |
| 465 } | |
| 466 | |
| 467 void GuestViewBase::SetOpener(GuestViewBase* guest) { | |
| 468 if (guest && guest->IsViewType(GetViewType())) { | |
| 469 opener_ = guest->weak_ptr_factory_.GetWeakPtr(); | |
| 470 if (!attached()) | |
| 471 opener_lifetime_observer_.reset(new OpenerLifetimeObserver(this)); | |
| 472 return; | |
| 473 } | |
| 474 opener_ = base::WeakPtr<GuestViewBase>(); | |
| 475 opener_lifetime_observer_.reset(); | |
| 476 } | |
| 477 | |
| 478 void GuestViewBase::SetGuestHost(content::GuestHost* guest_host) { | |
| 479 guest_host_ = guest_host; | |
| 480 } | |
| 481 | |
| 482 void GuestViewBase::WillAttach(content::WebContents* embedder_web_contents, | |
| 483 int element_instance_id, | |
| 484 bool is_full_page_plugin) { | |
| 485 if (owner_web_contents_ != embedder_web_contents) { | |
| 486 DCHECK_EQ(owner_contents_observer_->web_contents(), owner_web_contents_); | |
| 487 // Stop tracking the old embedder's zoom level. | |
| 488 StopTrackingEmbedderZoomLevel(); | |
| 489 owner_web_contents_ = embedder_web_contents; | |
| 490 owner_contents_observer_.reset( | |
| 491 new OwnerContentsObserver(this, embedder_web_contents)); | |
| 492 owner_host_ = GuestViewManager::FromBrowserContext(browser_context_)-> | |
| 493 IsOwnedByExtension(this) ? | |
| 494 owner_web_contents()->GetLastCommittedURL().host() : std::string(); | |
| 495 } | |
| 496 | |
| 497 // Start tracking the new embedder's zoom level. | |
| 498 StartTrackingEmbedderZoomLevel(); | |
| 499 element_instance_id_ = element_instance_id; | |
| 500 is_full_page_plugin_ = is_full_page_plugin; | |
| 501 | |
| 502 WillAttachToEmbedder(); | |
| 503 } | |
| 504 | |
| 505 int GuestViewBase::LogicalPixelsToPhysicalPixels(double logical_pixels) const { | |
| 506 DCHECK(logical_pixels >= 0); | |
| 507 double zoom_factor = GetEmbedderZoomFactor(); | |
| 508 return lround(logical_pixels * zoom_factor); | |
| 509 } | |
| 510 | |
| 511 double GuestViewBase::PhysicalPixelsToLogicalPixels(int physical_pixels) const { | |
| 512 DCHECK(physical_pixels >= 0); | |
| 513 double zoom_factor = GetEmbedderZoomFactor(); | |
| 514 return physical_pixels / zoom_factor; | |
| 515 } | |
| 516 | |
| 517 void GuestViewBase::DidStopLoading() { | |
| 518 content::RenderViewHost* rvh = web_contents()->GetRenderViewHost(); | |
| 519 | |
| 520 if (IsPreferredSizeModeEnabled()) | |
| 521 rvh->EnablePreferredSizeMode(); | |
| 522 if (!IsDragAndDropEnabled()) { | |
| 523 const char script[] = | |
| 524 "window.addEventListener('dragstart', function() { " | |
| 525 " window.event.preventDefault(); " | |
| 526 "});"; | |
| 527 rvh->GetMainFrame()->ExecuteJavaScript(base::ASCIIToUTF16(script)); | |
| 528 } | |
| 529 GuestViewDidStopLoading(); | |
| 530 } | |
| 531 | |
| 532 void GuestViewBase::RenderViewReady() { | |
| 533 GuestReady(); | |
| 534 } | |
| 535 | |
| 536 void GuestViewBase::WebContentsDestroyed() { | |
| 537 // Let the derived class know that its WebContents is in the process of | |
| 538 // being destroyed. web_contents() is still valid at this point. | |
| 539 // TODO(fsamuel): This allows for reentrant code into WebContents during | |
| 540 // destruction. This could potentially lead to bugs. Perhaps we should get rid | |
| 541 // of this? | |
| 542 GuestDestroyed(); | |
| 543 | |
| 544 // Self-destruct. | |
| 545 delete this; | |
| 546 } | |
| 547 | |
| 548 void GuestViewBase::DidNavigateMainFrame( | |
| 549 const content::LoadCommittedDetails& details, | |
| 550 const content::FrameNavigateParams& params) { | |
| 551 if (attached() && ZoomPropagatesFromEmbedderToGuest()) | |
| 552 SetGuestZoomLevelToMatchEmbedder(); | |
| 553 } | |
| 554 | |
| 555 void GuestViewBase::ActivateContents(WebContents* web_contents) { | |
| 556 if (!attached() || !embedder_web_contents()->GetDelegate()) | |
| 557 return; | |
| 558 | |
| 559 embedder_web_contents()->GetDelegate()->ActivateContents( | |
| 560 embedder_web_contents()); | |
| 561 } | |
| 562 | |
| 563 void GuestViewBase::DeactivateContents(WebContents* web_contents) { | |
| 564 if (!attached() || !embedder_web_contents()->GetDelegate()) | |
| 565 return; | |
| 566 | |
| 567 embedder_web_contents()->GetDelegate()->DeactivateContents( | |
| 568 embedder_web_contents()); | |
| 569 } | |
| 570 | |
| 571 void GuestViewBase::ContentsMouseEvent(content::WebContents* source, | |
| 572 const gfx::Point& location, | |
| 573 bool motion) { | |
| 574 if (!attached() || !embedder_web_contents()->GetDelegate()) | |
| 575 return; | |
| 576 | |
| 577 embedder_web_contents()->GetDelegate()->ContentsMouseEvent( | |
| 578 embedder_web_contents(), location, motion); | |
| 579 } | |
| 580 | |
| 581 void GuestViewBase::ContentsZoomChange(bool zoom_in) { | |
| 582 ui_zoom::PageZoom::Zoom( | |
| 583 embedder_web_contents(), | |
| 584 zoom_in ? content::PAGE_ZOOM_IN : content::PAGE_ZOOM_OUT); | |
| 585 } | |
| 586 | |
| 587 void GuestViewBase::HandleKeyboardEvent( | |
| 588 WebContents* source, | |
| 589 const content::NativeWebKeyboardEvent& event) { | |
| 590 if (!attached()) | |
| 591 return; | |
| 592 | |
| 593 // Send the keyboard events back to the embedder to reprocess them. | |
| 594 embedder_web_contents()->GetDelegate()-> | |
| 595 HandleKeyboardEvent(embedder_web_contents(), event); | |
| 596 } | |
| 597 | |
| 598 void GuestViewBase::LoadingStateChanged(content::WebContents* source, | |
| 599 bool to_different_document) { | |
| 600 if (!attached() || !embedder_web_contents()->GetDelegate()) | |
| 601 return; | |
| 602 | |
| 603 embedder_web_contents()->GetDelegate()->LoadingStateChanged( | |
| 604 embedder_web_contents(), to_different_document); | |
| 605 } | |
| 606 | |
| 607 content::ColorChooser* GuestViewBase::OpenColorChooser( | |
| 608 WebContents* web_contents, | |
| 609 SkColor color, | |
| 610 const std::vector<content::ColorSuggestion>& suggestions) { | |
| 611 if (!attached() || !embedder_web_contents()->GetDelegate()) | |
| 612 return nullptr; | |
| 613 | |
| 614 return embedder_web_contents()->GetDelegate()->OpenColorChooser( | |
| 615 web_contents, color, suggestions); | |
| 616 } | |
| 617 | |
| 618 void GuestViewBase::RunFileChooser(WebContents* web_contents, | |
| 619 const content::FileChooserParams& params) { | |
| 620 if (!attached() || !embedder_web_contents()->GetDelegate()) | |
| 621 return; | |
| 622 | |
| 623 embedder_web_contents()->GetDelegate()->RunFileChooser(web_contents, params); | |
| 624 } | |
| 625 | |
| 626 bool GuestViewBase::ShouldFocusPageAfterCrash() { | |
| 627 // Focus is managed elsewhere. | |
| 628 return false; | |
| 629 } | |
| 630 | |
| 631 bool GuestViewBase::PreHandleGestureEvent(content::WebContents* source, | |
| 632 const blink::WebGestureEvent& event) { | |
| 633 return event.type == blink::WebGestureEvent::GesturePinchBegin || | |
| 634 event.type == blink::WebGestureEvent::GesturePinchUpdate || | |
| 635 event.type == blink::WebGestureEvent::GesturePinchEnd; | |
| 636 } | |
| 637 | |
| 638 void GuestViewBase::UpdatePreferredSize( | |
| 639 content::WebContents* target_web_contents, | |
| 640 const gfx::Size& pref_size) { | |
| 641 // In theory it's not necessary to check IsPreferredSizeModeEnabled() because | |
| 642 // there will only be events if it was enabled in the first place. However, | |
| 643 // something else may have turned on preferred size mode, so double check. | |
| 644 DCHECK_EQ(web_contents(), target_web_contents); | |
| 645 if (IsPreferredSizeModeEnabled()) { | |
| 646 OnPreferredSizeChanged(pref_size); | |
| 647 } | |
| 648 } | |
| 649 | |
| 650 void GuestViewBase::UpdateTargetURL(content::WebContents* source, | |
| 651 const GURL& url) { | |
| 652 if (!attached() || !embedder_web_contents()->GetDelegate()) | |
| 653 return; | |
| 654 | |
| 655 embedder_web_contents()->GetDelegate()->UpdateTargetURL( | |
| 656 embedder_web_contents(), url); | |
| 657 } | |
| 658 | |
| 659 bool GuestViewBase::ShouldResumeRequestsForCreatedWindow() { | |
| 660 return false; | |
| 661 } | |
| 662 | |
| 663 GuestViewBase::~GuestViewBase() { | |
| 664 } | |
| 665 | |
| 666 void GuestViewBase::OnZoomChanged( | |
| 667 const ui_zoom::ZoomController::ZoomChangedEventData& data) { | |
| 668 if (data.web_contents == embedder_web_contents()) { | |
| 669 // The embedder's zoom level has changed. | |
| 670 auto guest_zoom_controller = | |
| 671 ui_zoom::ZoomController::FromWebContents(web_contents()); | |
| 672 if (content::ZoomValuesEqual(data.new_zoom_level, | |
| 673 guest_zoom_controller->GetZoomLevel())) { | |
| 674 return; | |
| 675 } | |
| 676 // When the embedder's zoom level doesn't match the guest's, then update the | |
| 677 // guest's zoom level to match. | |
| 678 guest_zoom_controller->SetZoomLevel(data.new_zoom_level); | |
| 679 | |
| 680 EmbedderZoomChanged(data.old_zoom_level, data.new_zoom_level); | |
| 681 return; | |
| 682 } | |
| 683 | |
| 684 if (data.web_contents == web_contents()) { | |
| 685 // The guest's zoom level has changed. | |
| 686 GuestZoomChanged(data.old_zoom_level, data.new_zoom_level); | |
| 687 } | |
| 688 } | |
| 689 | |
| 690 void GuestViewBase::DispatchEventToGuestProxy(GuestViewEvent* event) { | |
| 691 event->Dispatch(this, guest_instance_id_); | |
| 692 } | |
| 693 | |
| 694 void GuestViewBase::DispatchEventToView(GuestViewEvent* event) { | |
| 695 if (!attached() && | |
| 696 (!CanRunInDetachedState() || !can_owner_receive_events())) { | |
| 697 pending_events_.push_back(linked_ptr<GuestViewEvent>(event)); | |
| 698 return; | |
| 699 } | |
| 700 | |
| 701 event->Dispatch(this, view_instance_id_); | |
| 702 } | |
| 703 | |
| 704 void GuestViewBase::SendQueuedEvents() { | |
| 705 if (!attached()) | |
| 706 return; | |
| 707 while (!pending_events_.empty()) { | |
| 708 linked_ptr<GuestViewEvent> event_ptr = pending_events_.front(); | |
| 709 pending_events_.pop_front(); | |
| 710 event_ptr.release()->Dispatch(this, view_instance_id_); | |
| 711 } | |
| 712 } | |
| 713 | |
| 714 void GuestViewBase::CompleteInit( | |
| 715 scoped_ptr<base::DictionaryValue> create_params, | |
| 716 const WebContentsCreatedCallback& callback, | |
| 717 content::WebContents* guest_web_contents) { | |
| 718 if (!guest_web_contents) { | |
| 719 // The derived class did not create a WebContents so this class serves no | |
| 720 // purpose. Let's self-destruct. | |
| 721 delete this; | |
| 722 callback.Run(nullptr); | |
| 723 return; | |
| 724 } | |
| 725 InitWithWebContents(*create_params, guest_web_contents); | |
| 726 callback.Run(guest_web_contents); | |
| 727 } | |
| 728 | |
| 729 double GuestViewBase::GetEmbedderZoomFactor() const { | |
| 730 if (!embedder_web_contents()) | |
| 731 return 1.0; | |
| 732 | |
| 733 return content::ZoomLevelToZoomFactor( | |
| 734 ui_zoom::ZoomController::GetZoomLevelForWebContents( | |
| 735 embedder_web_contents())); | |
| 736 } | |
| 737 | |
| 738 void GuestViewBase::SetUpSizing(const base::DictionaryValue& params) { | |
| 739 // Read the autosize parameters passed in from the embedder. | |
| 740 bool auto_size_enabled = auto_size_enabled_; | |
| 741 params.GetBoolean(guestview::kAttributeAutoSize, &auto_size_enabled); | |
| 742 | |
| 743 int max_height = max_auto_size_.height(); | |
| 744 int max_width = max_auto_size_.width(); | |
| 745 params.GetInteger(guestview::kAttributeMaxHeight, &max_height); | |
| 746 params.GetInteger(guestview::kAttributeMaxWidth, &max_width); | |
| 747 | |
| 748 int min_height = min_auto_size_.height(); | |
| 749 int min_width = min_auto_size_.width(); | |
| 750 params.GetInteger(guestview::kAttributeMinHeight, &min_height); | |
| 751 params.GetInteger(guestview::kAttributeMinWidth, &min_width); | |
| 752 | |
| 753 double element_height = 0.0; | |
| 754 double element_width = 0.0; | |
| 755 params.GetDouble(guestview::kElementHeight, &element_height); | |
| 756 params.GetDouble(guestview::kElementWidth, &element_width); | |
| 757 | |
| 758 // Set the normal size to the element size so that the guestview will fit | |
| 759 // the element initially if autosize is disabled. | |
| 760 int normal_height = normal_size_.height(); | |
| 761 int normal_width = normal_size_.width(); | |
| 762 // If the element size was provided in logical units (versus physical), then | |
| 763 // it will be converted to physical units. | |
| 764 bool element_size_is_logical = false; | |
| 765 params.GetBoolean(guestview::kElementSizeIsLogical, &element_size_is_logical); | |
| 766 if (element_size_is_logical) { | |
| 767 // Convert the element size from logical pixels to physical pixels. | |
| 768 normal_height = LogicalPixelsToPhysicalPixels(element_height); | |
| 769 normal_width = LogicalPixelsToPhysicalPixels(element_width); | |
| 770 } else { | |
| 771 normal_height = lround(element_height); | |
| 772 normal_width = lround(element_width); | |
| 773 } | |
| 774 | |
| 775 SetSizeParams set_size_params; | |
| 776 set_size_params.enable_auto_size.reset(new bool(auto_size_enabled)); | |
| 777 set_size_params.min_size.reset(new gfx::Size(min_width, min_height)); | |
| 778 set_size_params.max_size.reset(new gfx::Size(max_width, max_height)); | |
| 779 set_size_params.normal_size.reset(new gfx::Size(normal_width, normal_height)); | |
| 780 | |
| 781 // Call SetSize to apply all the appropriate validation and clipping of | |
| 782 // values. | |
| 783 SetSize(set_size_params); | |
| 784 } | |
| 785 | |
| 786 void GuestViewBase::SetGuestZoomLevelToMatchEmbedder() { | |
| 787 auto embedder_zoom_controller = | |
| 788 ui_zoom::ZoomController::FromWebContents(owner_web_contents()); | |
| 789 if (!embedder_zoom_controller) | |
| 790 return; | |
| 791 | |
| 792 ui_zoom::ZoomController::FromWebContents(web_contents()) | |
| 793 ->SetZoomLevel(embedder_zoom_controller->GetZoomLevel()); | |
| 794 } | |
| 795 | |
| 796 void GuestViewBase::StartTrackingEmbedderZoomLevel() { | |
| 797 if (!ZoomPropagatesFromEmbedderToGuest()) | |
| 798 return; | |
| 799 | |
| 800 auto embedder_zoom_controller = | |
| 801 ui_zoom::ZoomController::FromWebContents(owner_web_contents()); | |
| 802 // Chrome Apps do not have a ZoomController. | |
| 803 if (!embedder_zoom_controller) | |
| 804 return; | |
| 805 // Listen to the embedder's zoom changes. | |
| 806 embedder_zoom_controller->AddObserver(this); | |
| 807 | |
| 808 // Set the guest's initial zoom level to be equal to the embedder's. | |
| 809 SetGuestZoomLevelToMatchEmbedder(); | |
| 810 } | |
| 811 | |
| 812 void GuestViewBase::StopTrackingEmbedderZoomLevel() { | |
| 813 if (!attached() || !ZoomPropagatesFromEmbedderToGuest()) | |
| 814 return; | |
| 815 | |
| 816 auto embedder_zoom_controller = | |
| 817 ui_zoom::ZoomController::FromWebContents(owner_web_contents()); | |
| 818 // Chrome Apps do not have a ZoomController. | |
| 819 if (!embedder_zoom_controller) | |
| 820 return; | |
| 821 embedder_zoom_controller->RemoveObserver(this); | |
| 822 } | |
| 823 | |
| 824 } // namespace extensions | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1102173002:
Move GuestView layer in browser to components (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master