1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * Copyright (C) 2014 Opera Software ASA. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include "config.h" 33 #include "web/WebPluginContainerImpl.h" 34 35 #include "bindings/core/v8/ScriptController.h" 36 #include "bindings/core/v8/V8Element.h" 37 #include "bindings/core/v8/V8NPObject.h" 38 #include "core/HTMLNames.h" 39 #include "core/clipboard/DataObject.h" 40 #include "core/clipboard/DataTransfer.h" 41 #include "core/events/GestureEvent.h" 42 #include "core/events/KeyboardEvent.h" 43 #include "core/events/MouseEvent.h" 44 #include "core/events/TouchEvent.h" 45 #include "core/events/WheelEvent.h" 46 #include "core/frame/EventHandlerRegistry.h" 47 #include "core/frame/FrameView.h" 48 #include "core/frame/LocalFrame.h" 49 #include "core/html/HTMLFormElement.h" 50 #include "core/html/HTMLPlugInElement.h" 51 #include "core/loader/FormState.h" 52 #include "core/loader/FrameLoadRequest.h" 53 #include "core/page/Chrome.h" 54 #include "core/page/EventHandler.h" 55 #include "core/page/FocusController.h" 56 #include "core/page/Page.h" 57 #include "core/page/scrolling/ScrollingCoordinator.h" 58 #include "core/plugins/PluginOcclusionSupport.h" 59 #include "core/rendering/HitTestResult.h" 60 #include "core/rendering/RenderBox.h" 61 #include "core/rendering/RenderLayer.h" 62 #include "core/rendering/RenderPart.h" 63 #include "platform/HostWindow.h" 64 #include "platform/KeyboardCodes.h" 65 #include "platform/PlatformGestureEvent.h" 66 #include "platform/UserGestureIndicator.h" 67 #include "platform/exported/WrappedResourceResponse.h" 68 #include "platform/graphics/GraphicsContext.h" 69 #include "platform/graphics/GraphicsLayer.h" 70 #include "platform/scroll/ScrollAnimator.h" 71 #include "platform/scroll/ScrollView.h" 72 #include "platform/scroll/ScrollbarTheme.h" 73 #include "public/platform/Platform.h" 74 #include "public/platform/WebClipboard.h" 75 #include "public/platform/WebCompositorSupport.h" 76 #include "public/platform/WebCursorInfo.h" 77 #include "public/platform/WebDragData.h" 78 #include "public/platform/WebExternalTextureLayer.h" 79 #include "public/platform/WebRect.h" 80 #include "public/platform/WebString.h" 81 #include "public/platform/WebURL.h" 82 #include "public/platform/WebURLError.h" 83 #include "public/platform/WebURLRequest.h" 84 #include "public/platform/WebVector.h" 85 #include "public/web/WebElement.h" 86 #include "public/web/WebInputEvent.h" 87 #include "public/web/WebPlugin.h" 88 #include "public/web/WebPrintParams.h" 89 #include "public/web/WebViewClient.h" 90 #include "web/ChromeClientImpl.h" 91 #include "web/ScrollbarGroup.h" 92 #include "web/WebDataSourceImpl.h" 93 #include "web/WebInputEventConversion.h" 94 #include "web/WebViewImpl.h" 95 #include "wtf/Assertions.h" 96 97 namespace blink { 98 99 // Public methods -------------------------------------------------------------- 100 101 void WebPluginContainerImpl::setFrameRect(const IntRect& frameRect) 102 { 103 Widget::setFrameRect(frameRect); 104 reportGeometry(); 105 } 106 107 void WebPluginContainerImpl::paint(GraphicsContext* gc, const IntRect& damageRect) 108 { 109 if (!parent()) 110 return; 111 112 // Don't paint anything if the plugin doesn't intersect the damage rect. 113 if (!frameRect().intersects(damageRect)) 114 return; 115 116 gc->save(); 117 118 ASSERT(parent()->isFrameView()); 119 ScrollView* view = toScrollView(parent()); 120 121 // The plugin is positioned in window coordinates, so it needs to be painted 122 // in window coordinates. 123 IntPoint origin = view->contentsToWindow(IntPoint(0, 0)); 124 gc->translate(static_cast<float>(-origin.x()), static_cast<float>(-origin.y())); 125 126 WebCanvas* canvas = gc->canvas(); 127 128 IntRect windowRect = view->contentsToWindow(damageRect); 129 m_webPlugin->paint(canvas, windowRect); 130 131 gc->restore(); 132 } 133 134 void WebPluginContainerImpl::invalidateRect(const IntRect& rect) 135 { 136 if (!parent()) 137 return; 138 139 RenderBox* renderer = toRenderBox(m_element->renderer()); 140 141 IntRect dirtyRect = rect; 142 dirtyRect.move(renderer->borderLeft() + renderer->paddingLeft(), 143 renderer->borderTop() + renderer->paddingTop()); 144 145 // For querying RenderLayer::compositingState(). 146 // This code should be correct. 147 DisableCompositingQueryAsserts disabler; 148 renderer->invalidatePaintRectangle(dirtyRect); 149 } 150 151 void WebPluginContainerImpl::setFocus(bool focused) 152 { 153 Widget::setFocus(focused); 154 m_webPlugin->updateFocus(focused); 155 } 156 157 void WebPluginContainerImpl::show() 158 { 159 setSelfVisible(true); 160 m_webPlugin->updateVisibility(true); 161 162 Widget::show(); 163 } 164 165 void WebPluginContainerImpl::hide() 166 { 167 setSelfVisible(false); 168 m_webPlugin->updateVisibility(false); 169 170 Widget::hide(); 171 } 172 173 void WebPluginContainerImpl::handleEvent(Event* event) 174 { 175 if (!m_webPlugin->acceptsInputEvents()) 176 return; 177 178 RefPtr<WebPluginContainerImpl> protector(this); 179 // The events we pass are defined at: 180 // http://devedge-temp.mozilla.org/library/manuals/2002/plugin/1.0/structures5.html#1000000 181 // Don't take the documentation as truth, however. There are many cases 182 // where mozilla behaves differently than the spec. 183 if (event->isMouseEvent()) 184 handleMouseEvent(toMouseEvent(event)); 185 else if (event->isWheelEvent()) 186 handleWheelEvent(toWheelEvent(event)); 187 else if (event->isKeyboardEvent()) 188 handleKeyboardEvent(toKeyboardEvent(event)); 189 else if (event->isTouchEvent()) 190 handleTouchEvent(toTouchEvent(event)); 191 else if (event->isGestureEvent()) 192 handleGestureEvent(toGestureEvent(event)); 193 194 // FIXME: it would be cleaner if Widget::handleEvent returned true/false and 195 // HTMLPluginElement called setDefaultHandled or defaultEventHandler. 196 if (!event->defaultHandled()) 197 m_element->Node::defaultEventHandler(event); 198 } 199 200 void WebPluginContainerImpl::frameRectsChanged() 201 { 202 Widget::frameRectsChanged(); 203 reportGeometry(); 204 } 205 206 void WebPluginContainerImpl::widgetPositionsUpdated() 207 { 208 Widget::widgetPositionsUpdated(); 209 reportGeometry(); 210 } 211 212 void WebPluginContainerImpl::eventListenersRemoved() 213 { 214 // We're no longer registered to receive touch events, so don't try to remove 215 // the touch event handlers in our destructor. 216 m_touchEventRequestType = TouchEventRequestTypeNone; 217 } 218 219 void WebPluginContainerImpl::setParentVisible(bool parentVisible) 220 { 221 // We override this function to make sure that geometry updates are sent 222 // over to the plugin. For e.g. when a plugin is instantiated it does not 223 // have a valid parent. As a result the first geometry update from webkit 224 // is ignored. This function is called when the plugin eventually gets a 225 // parent. 226 227 if (isParentVisible() == parentVisible) 228 return; // No change. 229 230 Widget::setParentVisible(parentVisible); 231 if (!isSelfVisible()) 232 return; // This widget has explicitely been marked as not visible. 233 234 m_webPlugin->updateVisibility(isVisible()); 235 } 236 237 void WebPluginContainerImpl::setParent(Widget* widget) 238 { 239 // We override this function so that if the plugin is windowed, we can call 240 // NPP_SetWindow at the first possible moment. This ensures that 241 // NPP_SetWindow is called before the manual load data is sent to a plugin. 242 // If this order is reversed, Flash won't load videos. 243 244 Widget::setParent(widget); 245 if (widget) 246 reportGeometry(); 247 else if (m_webPlugin) 248 m_webPlugin->containerDidDetachFromParent(); 249 } 250 251 void WebPluginContainerImpl::setPlugin(WebPlugin* plugin) 252 { 253 if (plugin != m_webPlugin) { 254 m_element->resetInstance(); 255 m_webPlugin = plugin; 256 } 257 } 258 259 float WebPluginContainerImpl::deviceScaleFactor() 260 { 261 Page* page = m_element->document().page(); 262 if (!page) 263 return 1.0; 264 return page->deviceScaleFactor(); 265 } 266 267 float WebPluginContainerImpl::pageScaleFactor() 268 { 269 Page* page = m_element->document().page(); 270 if (!page) 271 return 1.0; 272 return page->pageScaleFactor(); 273 } 274 275 float WebPluginContainerImpl::pageZoomFactor() 276 { 277 LocalFrame* frame = m_element->document().frame(); 278 if (!frame) 279 return 1.0; 280 return frame->pageZoomFactor(); 281 } 282 283 void WebPluginContainerImpl::setWebLayer(WebLayer* layer) 284 { 285 if (m_webLayer == layer) 286 return; 287 288 if (m_webLayer) 289 GraphicsLayer::unregisterContentsLayer(m_webLayer); 290 if (layer) 291 GraphicsLayer::registerContentsLayer(layer); 292 293 // If either of the layers is null we need to switch between hardware 294 // and software compositing. 295 bool needsCompositingUpdate = !m_webLayer || !layer; 296 297 m_webLayer = layer; 298 299 if (!needsCompositingUpdate) 300 return; 301 302 #if ENABLE(OILPAN) 303 if (!m_element) 304 return; 305 #endif 306 307 m_element->setNeedsCompositingUpdate(); 308 // Being composited or not affects the self painting layer bit 309 // on the RenderLayer. 310 if (RenderPart* renderer = m_element->renderPart()) { 311 ASSERT(renderer->hasLayer()); 312 renderer->layer()->updateSelfPaintingLayer(); 313 } 314 } 315 316 bool WebPluginContainerImpl::supportsPaginatedPrint() const 317 { 318 return m_webPlugin->supportsPaginatedPrint(); 319 } 320 321 bool WebPluginContainerImpl::isPrintScalingDisabled() const 322 { 323 return m_webPlugin->isPrintScalingDisabled(); 324 } 325 326 int WebPluginContainerImpl::getCopiesToPrint() const 327 { 328 return m_webPlugin->getCopiesToPrint(); 329 } 330 331 int WebPluginContainerImpl::printBegin(const WebPrintParams& printParams) const 332 { 333 return m_webPlugin->printBegin(printParams); 334 } 335 336 bool WebPluginContainerImpl::printPage(int pageNumber, GraphicsContext* gc) 337 { 338 gc->save(); 339 WebCanvas* canvas = gc->canvas(); 340 bool ret = m_webPlugin->printPage(pageNumber, canvas); 341 gc->restore(); 342 return ret; 343 } 344 345 void WebPluginContainerImpl::printEnd() 346 { 347 m_webPlugin->printEnd(); 348 } 349 350 void WebPluginContainerImpl::copy() 351 { 352 if (!m_webPlugin->hasSelection()) 353 return; 354 355 Platform::current()->clipboard()->writeHTML(m_webPlugin->selectionAsMarkup(), WebURL(), m_webPlugin->selectionAsText(), false); 356 } 357 358 bool WebPluginContainerImpl::executeEditCommand(const WebString& name) 359 { 360 if (m_webPlugin->executeEditCommand(name)) 361 return true; 362 363 if (name != "Copy") 364 return false; 365 366 copy(); 367 return true; 368 } 369 370 bool WebPluginContainerImpl::executeEditCommand(const WebString& name, const WebString& value) 371 { 372 return m_webPlugin->executeEditCommand(name, value); 373 } 374 375 WebElement WebPluginContainerImpl::element() 376 { 377 return WebElement(m_element); 378 } 379 380 void WebPluginContainerImpl::invalidate() 381 { 382 Widget::invalidate(); 383 } 384 385 void WebPluginContainerImpl::invalidateRect(const WebRect& rect) 386 { 387 invalidateRect(static_cast<IntRect>(rect)); 388 } 389 390 void WebPluginContainerImpl::scrollRect(const WebRect& rect) 391 { 392 invalidateRect(rect); 393 } 394 395 void WebPluginContainerImpl::reportGeometry() 396 { 397 if (!parent()) 398 return; 399 400 IntRect windowRect, clipRect; 401 Vector<IntRect> cutOutRects; 402 calculateGeometry(frameRect(), windowRect, clipRect, cutOutRects); 403 404 m_webPlugin->updateGeometry(windowRect, clipRect, cutOutRects, isVisible()); 405 406 if (m_scrollbarGroup) { 407 m_scrollbarGroup->scrollAnimator()->contentsResized(); 408 m_scrollbarGroup->setFrameRect(frameRect()); 409 } 410 } 411 412 void WebPluginContainerImpl::allowScriptObjects() 413 { 414 } 415 416 void WebPluginContainerImpl::clearScriptObjects() 417 { 418 if (!frame()) 419 return; 420 421 frame()->script().cleanupScriptObjectsForPlugin(this); 422 } 423 424 NPObject* WebPluginContainerImpl::scriptableObjectForElement() 425 { 426 return m_element->getNPObject(); 427 } 428 429 v8::Local<v8::Object> WebPluginContainerImpl::v8ObjectForElement() 430 { 431 LocalFrame* frame = m_element->document().frame(); 432 if (!frame) 433 return v8::Local<v8::Object>(); 434 435 if (!frame->script().canExecuteScripts(NotAboutToExecuteScript)) 436 return v8::Local<v8::Object>(); 437 438 ScriptState* scriptState = ScriptState::forMainWorld(frame); 439 if (scriptState->contextIsValid()) 440 return v8::Local<v8::Object>(); 441 442 v8::Handle<v8::Value> v8value = toV8(m_element, scriptState->context()->Global(), scriptState->isolate()); 443 ASSERT(v8value->IsObject()); 444 445 return v8::Handle<v8::Object>::Cast(v8value); 446 } 447 448 WebString WebPluginContainerImpl::executeScriptURL(const WebURL& url, bool popupsAllowed) 449 { 450 LocalFrame* frame = m_element->document().frame(); 451 if (!frame) 452 return WebString(); 453 454 const KURL& kurl = url; 455 ASSERT(kurl.protocolIs("javascript")); 456 457 String script = decodeURLEscapeSequences( 458 kurl.string().substring(strlen("javascript:"))); 459 460 UserGestureIndicator gestureIndicator(popupsAllowed ? DefinitelyProcessingNewUserGesture : PossiblyProcessingUserGesture); 461 v8::HandleScope handleScope(toIsolate(frame)); 462 v8::Local<v8::Value> result = frame->script().executeScriptInMainWorldAndReturnValue(ScriptSourceCode(script)); 463 464 // Failure is reported as a null string. 465 if (result.IsEmpty() || !result->IsString()) 466 return WebString(); 467 return toCoreString(v8::Handle<v8::String>::Cast(result)); 468 } 469 470 void WebPluginContainerImpl::loadFrameRequest(const WebURLRequest& request, const WebString& target, bool notifyNeeded, void* notifyData) 471 { 472 LocalFrame* frame = m_element->document().frame(); 473 if (!frame || !frame->loader().documentLoader()) 474 return; // FIXME: send a notification in this case? 475 476 if (notifyNeeded) { 477 // FIXME: This is a bit of hack to allow us to observe completion of 478 // our frame request. It would be better to evolve FrameLoader to 479 // support a completion callback instead. 480 OwnPtr<WebPluginLoadObserver> observer = adoptPtr(new WebPluginLoadObserver(this, request.url(), notifyData)); 481 // FIXME: Calling get here is dangerous! What if observer is freed? 482 m_pluginLoadObservers.append(observer.get()); 483 WebDataSourceImpl::setNextPluginLoadObserver(observer.release()); 484 } 485 486 FrameLoadRequest frameRequest(frame->document(), request.toResourceRequest(), target); 487 UserGestureIndicator gestureIndicator(request.hasUserGesture() ? DefinitelyProcessingNewUserGesture : PossiblyProcessingUserGesture); 488 frame->loader().load(frameRequest); 489 } 490 491 void WebPluginContainerImpl::zoomLevelChanged(double zoomLevel) 492 { 493 WebViewImpl* view = WebViewImpl::fromPage(m_element->document().frame()->page()); 494 view->fullFramePluginZoomLevelChanged(zoomLevel); 495 } 496 497 bool WebPluginContainerImpl::isRectTopmost(const WebRect& rect) 498 { 499 LocalFrame* frame = m_element->document().frame(); 500 if (!frame) 501 return false; 502 503 // hitTestResultAtPoint() takes a padding rectangle. 504 // FIXME: We'll be off by 1 when the width or height is even. 505 IntRect documentRect(x() + rect.x, y() + rect.y, rect.width, rect.height); 506 LayoutPoint center = documentRect.center(); 507 // Make the rect we're checking (the point surrounded by padding rects) contained inside the requested rect. (Note that -1/2 is 0.) 508 LayoutSize padding((documentRect.width() - 1) / 2, (documentRect.height() - 1) / 2); 509 HitTestResult result = frame->eventHandler().hitTestResultAtPoint(center, HitTestRequest::ReadOnly | HitTestRequest::Active, padding); 510 const HitTestResult::NodeSet& nodes = result.rectBasedTestResult(); 511 if (nodes.size() != 1) 512 return false; 513 return nodes.first().get() == m_element; 514 } 515 516 void WebPluginContainerImpl::requestTouchEventType(TouchEventRequestType requestType) 517 { 518 if (m_touchEventRequestType == requestType) 519 return; 520 521 if (m_element->document().frameHost()) { 522 EventHandlerRegistry& registry = m_element->document().frameHost()->eventHandlerRegistry(); 523 if (requestType != TouchEventRequestTypeNone && m_touchEventRequestType == TouchEventRequestTypeNone) 524 registry.didAddEventHandler(*m_element, EventHandlerRegistry::TouchEvent); 525 else if (requestType == TouchEventRequestTypeNone && m_touchEventRequestType != TouchEventRequestTypeNone) 526 registry.didRemoveEventHandler(*m_element, EventHandlerRegistry::TouchEvent); 527 } 528 m_touchEventRequestType = requestType; 529 } 530 531 void WebPluginContainerImpl::setWantsWheelEvents(bool wantsWheelEvents) 532 { 533 if (m_wantsWheelEvents == wantsWheelEvents) 534 return; 535 m_wantsWheelEvents = wantsWheelEvents; 536 if (Page* page = m_element->document().page()) { 537 if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator()) { 538 if (parent() && parent()->isFrameView()) 539 scrollingCoordinator->notifyLayoutUpdated(); 540 } 541 } 542 } 543 544 WebPoint WebPluginContainerImpl::windowToLocalPoint(const WebPoint& point) 545 { 546 ScrollView* view = toScrollView(parent()); 547 if (!view) 548 return point; 549 WebPoint windowPoint = view->windowToContents(point); 550 return roundedIntPoint(m_element->renderer()->absoluteToLocal(LayoutPoint(windowPoint), UseTransforms)); 551 } 552 553 WebPoint WebPluginContainerImpl::localToWindowPoint(const WebPoint& point) 554 { 555 ScrollView* view = toScrollView(parent()); 556 if (!view) 557 return point; 558 IntPoint absolutePoint = roundedIntPoint(m_element->renderer()->localToAbsolute(LayoutPoint(point), UseTransforms)); 559 return view->contentsToWindow(absolutePoint); 560 } 561 562 void WebPluginContainerImpl::didReceiveResponse(const ResourceResponse& response) 563 { 564 // Make sure that the plugin receives window geometry before data, or else 565 // plugins misbehave. 566 frameRectsChanged(); 567 568 WrappedResourceResponse urlResponse(response); 569 m_webPlugin->didReceiveResponse(urlResponse); 570 } 571 572 void WebPluginContainerImpl::didReceiveData(const char *data, int dataLength) 573 { 574 m_webPlugin->didReceiveData(data, dataLength); 575 } 576 577 void WebPluginContainerImpl::didFinishLoading() 578 { 579 m_webPlugin->didFinishLoading(); 580 } 581 582 void WebPluginContainerImpl::didFailLoading(const ResourceError& error) 583 { 584 m_webPlugin->didFailLoading(error); 585 } 586 587 WebLayer* WebPluginContainerImpl::platformLayer() const 588 { 589 return m_webLayer; 590 } 591 592 v8::Local<v8::Object> WebPluginContainerImpl::scriptableObject(v8::Isolate* isolate) 593 { 594 v8::Local<v8::Object> object = m_webPlugin->v8ScriptableObject(isolate); 595 if (!object.IsEmpty()) { 596 // WebPlugin implementation can't provide the obsolete NPObject at the same time: 597 ASSERT(!m_webPlugin->scriptableObject()); 598 return object; 599 } 600 601 NPObject* npObject = m_webPlugin->scriptableObject(); 602 if (npObject) 603 return createV8ObjectForNPObject(npObject, 0, isolate); 604 return v8::Local<v8::Object>(); 605 } 606 607 bool WebPluginContainerImpl::getFormValue(String& value) 608 { 609 WebString webValue; 610 if (m_webPlugin->getFormValue(webValue)) { 611 value = webValue; 612 return true; 613 } 614 return false; 615 } 616 617 bool WebPluginContainerImpl::supportsKeyboardFocus() const 618 { 619 return m_webPlugin->supportsKeyboardFocus(); 620 } 621 622 bool WebPluginContainerImpl::supportsInputMethod() const 623 { 624 return m_webPlugin->supportsInputMethod(); 625 } 626 627 bool WebPluginContainerImpl::canProcessDrag() const 628 { 629 return m_webPlugin->canProcessDrag(); 630 } 631 632 bool WebPluginContainerImpl::wantsWheelEvents() 633 { 634 return m_wantsWheelEvents; 635 } 636 637 void WebPluginContainerImpl::willDestroyPluginLoadObserver(WebPluginLoadObserver* observer) 638 { 639 size_t pos = m_pluginLoadObservers.find(observer); 640 if (pos == kNotFound) 641 return; 642 m_pluginLoadObservers.remove(pos); 643 } 644 645 ScrollbarGroup* WebPluginContainerImpl::scrollbarGroup() 646 { 647 if (!m_scrollbarGroup) 648 m_scrollbarGroup = adoptPtr(new ScrollbarGroup(m_element->document().frame()->view(), frameRect())); 649 return m_scrollbarGroup.get(); 650 } 651 652 void WebPluginContainerImpl::willStartLiveResize() 653 { 654 if (m_scrollbarGroup) 655 m_scrollbarGroup->willStartLiveResize(); 656 } 657 658 void WebPluginContainerImpl::willEndLiveResize() 659 { 660 if (m_scrollbarGroup) 661 m_scrollbarGroup->willEndLiveResize(); 662 } 663 664 bool WebPluginContainerImpl::paintCustomOverhangArea(GraphicsContext* context, const IntRect& horizontalOverhangArea, const IntRect& verticalOverhangArea, const IntRect& dirtyRect) 665 { 666 context->save(); 667 context->setFillColor(Color(0xCC, 0xCC, 0xCC)); 668 context->fillRect(intersection(horizontalOverhangArea, dirtyRect)); 669 context->fillRect(intersection(verticalOverhangArea, dirtyRect)); 670 context->restore(); 671 return true; 672 } 673 674 // Private methods ------------------------------------------------------------- 675 676 WebPluginContainerImpl::WebPluginContainerImpl(HTMLPlugInElement* element, WebPlugin* webPlugin) 677 #if ENABLE(OILPAN) 678 : m_frame(element->document().frame()) 679 #else 680 : FrameDestructionObserver(element->document().frame()) 681 #endif 682 , m_element(element) 683 , m_webPlugin(webPlugin) 684 , m_webLayer(0) 685 , m_touchEventRequestType(TouchEventRequestTypeNone) 686 , m_wantsWheelEvents(false) 687 { 688 } 689 690 WebPluginContainerImpl::~WebPluginContainerImpl() 691 { 692 #if ENABLE(OILPAN) 693 // The element (and its document) are heap allocated and may 694 // have been finalized by now; unsafe to unregister the touch 695 // event handler at this stage. 696 // 697 // This is acceptable, as the widget will unregister itself if it 698 // is cleanly detached. If an explicit detach doesn't happen, this 699 // container is assumed to have died with the plugin element (and 700 // its document), hence no unregistration step is needed. 701 // 702 m_element = 0; 703 #else 704 if (m_touchEventRequestType != TouchEventRequestTypeNone && m_element->document().frameHost()) 705 m_element->document().frameHost()->eventHandlerRegistry().didRemoveEventHandler(*m_element, EventHandlerRegistry::TouchEvent); 706 #endif 707 708 ScriptForbiddenScope::AllowSuperUnsafeScript thisShouldBeRemoved; 709 710 for (size_t i = 0; i < m_pluginLoadObservers.size(); ++i) 711 m_pluginLoadObservers[i]->clearPluginContainer(); 712 m_webPlugin->destroy(); 713 if (m_webLayer) 714 GraphicsLayer::unregisterContentsLayer(m_webLayer); 715 } 716 717 #if ENABLE(OILPAN) 718 void WebPluginContainerImpl::detach() 719 { 720 if (m_touchEventRequestType != TouchEventRequestTypeNone && m_element->document().frameHost()) 721 m_element->document().frameHost()->eventHandlerRegistry().didRemoveEventHandler(*m_element, EventHandlerRegistry::TouchEvent); 722 723 setWebLayer(0); 724 } 725 #endif 726 727 void WebPluginContainerImpl::handleMouseEvent(MouseEvent* event) 728 { 729 ASSERT(parent()->isFrameView()); 730 731 if (event->isDragEvent()) { 732 if (m_webPlugin->canProcessDrag()) 733 handleDragEvent(event); 734 return; 735 } 736 737 // We cache the parent FrameView here as the plugin widget could be deleted 738 // in the call to HandleEvent. See http://b/issue?id=1362948 739 FrameView* parentView = toFrameView(parent()); 740 741 WebMouseEventBuilder webEvent(this, m_element->renderer(), *event); 742 if (webEvent.type == WebInputEvent::Undefined) 743 return; 744 745 if (event->type() == EventTypeNames::mousedown) 746 focusPlugin(); 747 748 if (m_scrollbarGroup) { 749 // This needs to be set before the other callbacks in this scope, since 750 // the scroll animator class might query the position in response. 751 m_scrollbarGroup->setLastMousePosition(IntPoint(event->x(), event->y())); 752 if (event->type() == EventTypeNames::mousemove) 753 m_scrollbarGroup->scrollAnimator()->mouseMovedInContentArea(); 754 else if (event->type() == EventTypeNames::mouseover) 755 m_scrollbarGroup->scrollAnimator()->mouseEnteredContentArea(); 756 else if (event->type() == EventTypeNames::mouseout) 757 m_scrollbarGroup->scrollAnimator()->mouseExitedContentArea(); 758 } 759 760 WebCursorInfo cursorInfo; 761 if (m_webPlugin->handleInputEvent(webEvent, cursorInfo)) 762 event->setDefaultHandled(); 763 764 // A windowless plugin can change the cursor in response to a mouse move 765 // event. We need to reflect the changed cursor in the frame view as the 766 // mouse is moved in the boundaries of the windowless plugin. 767 Page* page = parentView->frame().page(); 768 if (!page) 769 return; 770 toChromeClientImpl(page->chrome().client()).setCursorForPlugin(cursorInfo); 771 } 772 773 void WebPluginContainerImpl::handleDragEvent(MouseEvent* event) 774 { 775 ASSERT(event->isDragEvent()); 776 777 WebDragStatus dragStatus = WebDragStatusUnknown; 778 if (event->type() == EventTypeNames::dragenter) 779 dragStatus = WebDragStatusEnter; 780 else if (event->type() == EventTypeNames::dragleave) 781 dragStatus = WebDragStatusLeave; 782 else if (event->type() == EventTypeNames::dragover) 783 dragStatus = WebDragStatusOver; 784 else if (event->type() == EventTypeNames::drop) 785 dragStatus = WebDragStatusDrop; 786 787 if (dragStatus == WebDragStatusUnknown) 788 return; 789 790 DataTransfer* dataTransfer = event->dataTransfer(); 791 WebDragData dragData(dataTransfer->dataObject()); 792 WebDragOperationsMask dragOperationMask = static_cast<WebDragOperationsMask>(dataTransfer->sourceOperation()); 793 WebPoint dragScreenLocation(event->screenX(), event->screenY()); 794 WebPoint dragLocation(event->absoluteLocation().x() - location().x(), event->absoluteLocation().y() - location().y()); 795 796 m_webPlugin->handleDragStatusUpdate(dragStatus, dragData, dragOperationMask, dragLocation, dragScreenLocation); 797 } 798 799 void WebPluginContainerImpl::handleWheelEvent(WheelEvent* event) 800 { 801 WebMouseWheelEventBuilder webEvent(this, m_element->renderer(), *event); 802 if (webEvent.type == WebInputEvent::Undefined) 803 return; 804 805 WebCursorInfo cursorInfo; 806 if (m_webPlugin->handleInputEvent(webEvent, cursorInfo)) 807 event->setDefaultHandled(); 808 } 809 810 void WebPluginContainerImpl::handleKeyboardEvent(KeyboardEvent* event) 811 { 812 WebKeyboardEventBuilder webEvent(*event); 813 if (webEvent.type == WebInputEvent::Undefined) 814 return; 815 816 if (webEvent.type == WebInputEvent::KeyDown) { 817 #if OS(MACOSX) 818 if (webEvent.modifiers == WebInputEvent::MetaKey 819 #else 820 if (webEvent.modifiers == WebInputEvent::ControlKey 821 #endif 822 && webEvent.windowsKeyCode == VKEY_C 823 // Only copy if there's a selection, so that we only ever do this 824 // for Pepper plugins that support copying. Windowless NPAPI 825 // plugins will get the event as before. 826 && m_webPlugin->hasSelection()) { 827 copy(); 828 event->setDefaultHandled(); 829 return; 830 } 831 } 832 833 const WebInputEvent* currentInputEvent = WebViewImpl::currentInputEvent(); 834 835 // Copy stashed info over, and only copy here in order not to interfere 836 // the ctrl-c logic above. 837 if (currentInputEvent 838 && WebInputEvent::isKeyboardEventType(currentInputEvent->type)) { 839 webEvent.modifiers |= currentInputEvent->modifiers & 840 (WebInputEvent::CapsLockOn | WebInputEvent::NumLockOn); 841 } 842 843 // Give the client a chance to issue edit comamnds. 844 WebViewImpl* view = WebViewImpl::fromPage(m_element->document().frame()->page()); 845 if (m_webPlugin->supportsEditCommands() && view->client()) 846 view->client()->handleCurrentKeyboardEvent(); 847 848 WebCursorInfo cursorInfo; 849 if (m_webPlugin->handleInputEvent(webEvent, cursorInfo)) 850 event->setDefaultHandled(); 851 } 852 853 void WebPluginContainerImpl::handleTouchEvent(TouchEvent* event) 854 { 855 switch (m_touchEventRequestType) { 856 case TouchEventRequestTypeNone: 857 return; 858 case TouchEventRequestTypeRaw: { 859 WebTouchEventBuilder webEvent(this, m_element->renderer(), *event); 860 if (webEvent.type == WebInputEvent::Undefined) 861 return; 862 863 if (event->type() == EventTypeNames::touchstart) 864 focusPlugin(); 865 866 WebCursorInfo cursorInfo; 867 if (m_webPlugin->handleInputEvent(webEvent, cursorInfo)) 868 event->setDefaultHandled(); 869 // FIXME: Can a plugin change the cursor from a touch-event callback? 870 return; 871 } 872 case TouchEventRequestTypeSynthesizedMouse: 873 synthesizeMouseEventIfPossible(event); 874 return; 875 } 876 } 877 878 static inline bool gestureScrollHelper(ScrollbarGroup* scrollbarGroup, ScrollDirection positiveDirection, ScrollDirection negativeDirection, float delta) 879 { 880 if (!delta) 881 return false; 882 float absDelta = delta > 0 ? delta : -delta; 883 return scrollbarGroup->scroll(delta < 0 ? negativeDirection : positiveDirection, ScrollByPrecisePixel, absDelta); 884 } 885 886 void WebPluginContainerImpl::handleGestureEvent(GestureEvent* event) 887 { 888 WebGestureEventBuilder webEvent(this, m_element->renderer(), *event); 889 if (webEvent.type == WebInputEvent::Undefined) 890 return; 891 if (event->type() == EventTypeNames::gesturetapdown) 892 focusPlugin(); 893 WebCursorInfo cursorInfo; 894 if (m_webPlugin->handleInputEvent(webEvent, cursorInfo)) { 895 event->setDefaultHandled(); 896 return; 897 } 898 899 if (webEvent.type == WebInputEvent::GestureScrollUpdate || webEvent.type == WebInputEvent::GestureScrollUpdateWithoutPropagation) { 900 if (!m_scrollbarGroup) 901 return; 902 if (gestureScrollHelper(m_scrollbarGroup.get(), ScrollLeft, ScrollRight, webEvent.data.scrollUpdate.deltaX)) 903 event->setDefaultHandled(); 904 if (gestureScrollHelper(m_scrollbarGroup.get(), ScrollUp, ScrollDown, webEvent.data.scrollUpdate.deltaY)) 905 event->setDefaultHandled(); 906 } 907 // FIXME: Can a plugin change the cursor from a touch-event callback? 908 } 909 910 void WebPluginContainerImpl::synthesizeMouseEventIfPossible(TouchEvent* event) 911 { 912 WebMouseEventBuilder webEvent(this, m_element->renderer(), *event); 913 if (webEvent.type == WebInputEvent::Undefined) 914 return; 915 916 WebCursorInfo cursorInfo; 917 if (m_webPlugin->handleInputEvent(webEvent, cursorInfo)) 918 event->setDefaultHandled(); 919 } 920 921 void WebPluginContainerImpl::focusPlugin() 922 { 923 LocalFrame& containingFrame = toFrameView(parent())->frame(); 924 if (Page* currentPage = containingFrame.page()) 925 currentPage->focusController().setFocusedElement(m_element, &containingFrame); 926 else 927 containingFrame.document()->setFocusedElement(m_element); 928 } 929 930 void WebPluginContainerImpl::calculateGeometry(const IntRect& frameRect, 931 IntRect& windowRect, 932 IntRect& clipRect, 933 Vector<IntRect>& cutOutRects) 934 { 935 windowRect = toScrollView(parent())->contentsToWindow(frameRect); 936 937 // Calculate a clip-rect so that we don't overlap the scrollbars, etc. 938 clipRect = windowClipRect(); 939 clipRect.move(-windowRect.x(), -windowRect.y()); 940 941 getPluginOcclusions(m_element, this->parent(), frameRect, cutOutRects); 942 // Convert to the plugin position. 943 for (size_t i = 0; i < cutOutRects.size(); i++) 944 cutOutRects[i].move(-frameRect.x(), -frameRect.y()); 945 } 946 947 IntRect WebPluginContainerImpl::windowClipRect() const 948 { 949 // Start by clipping to our bounds. 950 IntRect clipRect = 951 convertToContainingWindow(IntRect(0, 0, width(), height())); 952 953 // document().renderView() can be 0 when we receive messages from the 954 // plugins while we are destroying a frame. 955 // FIXME: Can we just check m_element->document().isActive() ? 956 if (m_element->renderer()->document().renderView()) { 957 // Take our element and get the clip rect from the enclosing layer and 958 // frame view. 959 clipRect.intersect( 960 m_element->document().view()->windowClipRectForFrameOwner(m_element)); 961 } 962 963 return clipRect; 964 } 965 966 bool WebPluginContainerImpl::pluginShouldPersist() const 967 { 968 return m_webPlugin->shouldPersist(); 969 } 970 971 } // namespace blink 972
