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
setFrameRect(const IntRect & frameRect)101 void WebPluginContainerImpl::setFrameRect(const IntRect& frameRect)
102 {
103 Widget::setFrameRect(frameRect);
104 reportGeometry();
105 }
106
paint(GraphicsContext * gc,const IntRect & damageRect)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
invalidateRect(const IntRect & rect)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
setFocus(bool focused)151 void WebPluginContainerImpl::setFocus(bool focused)
152 {
153 Widget::setFocus(focused);
154 m_webPlugin->updateFocus(focused);
155 }
156
show()157 void WebPluginContainerImpl::show()
158 {
159 setSelfVisible(true);
160 m_webPlugin->updateVisibility(true);
161
162 Widget::show();
163 }
164
hide()165 void WebPluginContainerImpl::hide()
166 {
167 setSelfVisible(false);
168 m_webPlugin->updateVisibility(false);
169
170 Widget::hide();
171 }
172
handleEvent(Event * event)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
frameRectsChanged()200 void WebPluginContainerImpl::frameRectsChanged()
201 {
202 Widget::frameRectsChanged();
203 reportGeometry();
204 }
205
widgetPositionsUpdated()206 void WebPluginContainerImpl::widgetPositionsUpdated()
207 {
208 Widget::widgetPositionsUpdated();
209 reportGeometry();
210 }
211
eventListenersRemoved()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
setParentVisible(bool parentVisible)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
setParent(Widget * widget)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
setPlugin(WebPlugin * plugin)251 void WebPluginContainerImpl::setPlugin(WebPlugin* plugin)
252 {
253 if (plugin != m_webPlugin) {
254 m_element->resetInstance();
255 m_webPlugin = plugin;
256 }
257 }
258
deviceScaleFactor()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
pageScaleFactor()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
pageZoomFactor()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
setWebLayer(WebLayer * layer)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
supportsPaginatedPrint() const316 bool WebPluginContainerImpl::supportsPaginatedPrint() const
317 {
318 return m_webPlugin->supportsPaginatedPrint();
319 }
320
isPrintScalingDisabled() const321 bool WebPluginContainerImpl::isPrintScalingDisabled() const
322 {
323 return m_webPlugin->isPrintScalingDisabled();
324 }
325
getCopiesToPrint() const326 int WebPluginContainerImpl::getCopiesToPrint() const
327 {
328 return m_webPlugin->getCopiesToPrint();
329 }
330
printBegin(const WebPrintParams & printParams) const331 int WebPluginContainerImpl::printBegin(const WebPrintParams& printParams) const
332 {
333 return m_webPlugin->printBegin(printParams);
334 }
335
printPage(int pageNumber,GraphicsContext * gc)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
printEnd()345 void WebPluginContainerImpl::printEnd()
346 {
347 m_webPlugin->printEnd();
348 }
349
copy()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
executeEditCommand(const WebString & name)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
executeEditCommand(const WebString & name,const WebString & value)370 bool WebPluginContainerImpl::executeEditCommand(const WebString& name, const WebString& value)
371 {
372 return m_webPlugin->executeEditCommand(name, value);
373 }
374
element()375 WebElement WebPluginContainerImpl::element()
376 {
377 return WebElement(m_element);
378 }
379
invalidate()380 void WebPluginContainerImpl::invalidate()
381 {
382 Widget::invalidate();
383 }
384
invalidateRect(const WebRect & rect)385 void WebPluginContainerImpl::invalidateRect(const WebRect& rect)
386 {
387 invalidateRect(static_cast<IntRect>(rect));
388 }
389
scrollRect(const WebRect & rect)390 void WebPluginContainerImpl::scrollRect(const WebRect& rect)
391 {
392 invalidateRect(rect);
393 }
394
reportGeometry()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
allowScriptObjects()412 void WebPluginContainerImpl::allowScriptObjects()
413 {
414 }
415
clearScriptObjects()416 void WebPluginContainerImpl::clearScriptObjects()
417 {
418 if (!frame())
419 return;
420
421 frame()->script().cleanupScriptObjectsForPlugin(this);
422 }
423
scriptableObjectForElement()424 NPObject* WebPluginContainerImpl::scriptableObjectForElement()
425 {
426 return m_element->getNPObject();
427 }
428
v8ObjectForElement()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
executeScriptURL(const WebURL & url,bool popupsAllowed)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
loadFrameRequest(const WebURLRequest & request,const WebString & target,bool notifyNeeded,void * notifyData)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
zoomLevelChanged(double zoomLevel)491 void WebPluginContainerImpl::zoomLevelChanged(double zoomLevel)
492 {
493 WebViewImpl* view = WebViewImpl::fromPage(m_element->document().frame()->page());
494 view->fullFramePluginZoomLevelChanged(zoomLevel);
495 }
496
isRectTopmost(const WebRect & rect)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
requestTouchEventType(TouchEventRequestType requestType)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
setWantsWheelEvents(bool wantsWheelEvents)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
windowToLocalPoint(const WebPoint & point)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
localToWindowPoint(const WebPoint & point)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
didReceiveResponse(const ResourceResponse & response)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
didReceiveData(const char * data,int dataLength)572 void WebPluginContainerImpl::didReceiveData(const char *data, int dataLength)
573 {
574 m_webPlugin->didReceiveData(data, dataLength);
575 }
576
didFinishLoading()577 void WebPluginContainerImpl::didFinishLoading()
578 {
579 m_webPlugin->didFinishLoading();
580 }
581
didFailLoading(const ResourceError & error)582 void WebPluginContainerImpl::didFailLoading(const ResourceError& error)
583 {
584 m_webPlugin->didFailLoading(error);
585 }
586
platformLayer() const587 WebLayer* WebPluginContainerImpl::platformLayer() const
588 {
589 return m_webLayer;
590 }
591
scriptableObject(v8::Isolate * isolate)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
getFormValue(String & value)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
supportsKeyboardFocus() const617 bool WebPluginContainerImpl::supportsKeyboardFocus() const
618 {
619 return m_webPlugin->supportsKeyboardFocus();
620 }
621
supportsInputMethod() const622 bool WebPluginContainerImpl::supportsInputMethod() const
623 {
624 return m_webPlugin->supportsInputMethod();
625 }
626
canProcessDrag() const627 bool WebPluginContainerImpl::canProcessDrag() const
628 {
629 return m_webPlugin->canProcessDrag();
630 }
631
wantsWheelEvents()632 bool WebPluginContainerImpl::wantsWheelEvents()
633 {
634 return m_wantsWheelEvents;
635 }
636
willDestroyPluginLoadObserver(WebPluginLoadObserver * observer)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
scrollbarGroup()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
willStartLiveResize()652 void WebPluginContainerImpl::willStartLiveResize()
653 {
654 if (m_scrollbarGroup)
655 m_scrollbarGroup->willStartLiveResize();
656 }
657
willEndLiveResize()658 void WebPluginContainerImpl::willEndLiveResize()
659 {
660 if (m_scrollbarGroup)
661 m_scrollbarGroup->willEndLiveResize();
662 }
663
paintCustomOverhangArea(GraphicsContext * context,const IntRect & horizontalOverhangArea,const IntRect & verticalOverhangArea,const IntRect & dirtyRect)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
WebPluginContainerImpl(HTMLPlugInElement * element,WebPlugin * webPlugin)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
~WebPluginContainerImpl()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)
detach()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
handleMouseEvent(MouseEvent * event)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
handleDragEvent(MouseEvent * event)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
handleWheelEvent(WheelEvent * event)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
handleKeyboardEvent(KeyboardEvent * event)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
handleTouchEvent(TouchEvent * event)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
gestureScrollHelper(ScrollbarGroup * scrollbarGroup,ScrollDirection positiveDirection,ScrollDirection negativeDirection,float delta)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
handleGestureEvent(GestureEvent * event)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
synthesizeMouseEventIfPossible(TouchEvent * event)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
focusPlugin()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
calculateGeometry(const IntRect & frameRect,IntRect & windowRect,IntRect & clipRect,Vector<IntRect> & cutOutRects)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
windowClipRect() const947 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
pluginShouldPersist() const966 bool WebPluginContainerImpl::pluginShouldPersist() const
967 {
968 return m_webPlugin->shouldPersist();
969 }
970
971 } // namespace blink
972