C++ webcore::FrameView类代码示例

String DumpRenderTreeSupportEfl::renderTreeDump(Evas_Object* ewkFrame)
{
    WebCore::Frame* frame = EWKPrivate::coreFrame(ewkFrame);

    if (!frame)
        return String();

    WebCore::FrameView *frameView = frame->view();

    if (frameView && frameView->layoutPending())
        frameView->layout();

    return WebCore::externalRepresentation(frame);
}

void DumpRenderTreeSupportEfl::layoutFrame(Evas_Object* ewkFrame)
{
    WebCore::Frame* frame = EWKPrivate::coreFrame(ewkFrame);

    if (!frame)
        return;

    WebCore::FrameView* frameView = frame->view();

    if (!frameView)
        return;

    frameView->layout();
}

    void restore()
    {
        WebCore::FrameView* view = frameView();
        if (!view)
            return;

        m_webView->setZoomLevel(false, 0);
        m_webView->setEmulatedTextZoomFactor(1);
        view->setHorizontalScrollbarLock(false);
        view->setVerticalScrollbarLock(false);
        view->setScrollbarModes(ScrollbarAuto, ScrollbarAuto, false, false);
        view->resize(IntSize(m_webView->size()));
        m_webView->sendResizeEventAndRepaint();
    }

    void setDeviceMetrics(int width, int height, float textZoomFactor, bool fitWindow)
    {
        WebCore::FrameView* view = frameView();
        if (!view)
            return;

        m_emulatedFrameSize = WebSize(width, height);
        m_fitWindow = fitWindow;
        m_originalZoomFactor = 0;
        m_webView->setEmulatedTextZoomFactor(textZoomFactor);
        applySizeOverrideInternal(view, FitWindowAllowed);
        autoZoomPageToFitWidth(view->frame());

        m_webView->sendResizeEventAndRepaint();
    }

char*
DumpRenderTreeWKC::dumpRenderTree(WKC::WKCWebFrame* frame)
{
    WKC::Frame* wkcframe = frame->core();
    WebCore::Frame* core_frame= wkcframe->priv().webcore();
    if (!core_frame)
        return strdup("");

    WebCore::FrameView* view = core_frame->view();

    if (view && view->layoutPending())
        view->layout();

    WTF::String string = WebCore::externalRepresentation(core_frame);
    return strdup(string.utf8().data());
}

bool QWebFrameAdapter::renderFromTiledBackingStore(QPainter* painter, const QRegion& clip)
{
    // No tiled backing store? Tell the caller to fall back to regular rendering.
    if (!frame->tiledBackingStore())
        return false;

    // FIXME: We should set the backing store viewport earlier than in paint
    frame->tiledBackingStore()->coverWithTilesIfNeeded();

    if (!frame->view() || !frame->contentRenderer())
        return true;

    QVector<QRect> vector = clip.rects();
    if (vector.isEmpty())
        return true;

    GraphicsContext context(painter);

    WebCore::FrameView* view = frame->view();

    int scrollX = view->scrollX();
    int scrollY = view->scrollY();
    context.translate(-scrollX, -scrollY);

    for (int i = 0; i < vector.size(); ++i) {
        const QRect& clipRect = vector.at(i);

        painter->save();

        QRect rect = clipRect.translated(scrollX, scrollY);
        painter->setClipRect(rect, Qt::IntersectClip);

        frame->tiledBackingStore()->paint(&context, rect);

        painter->restore();
    }

#if USE(ACCELERATED_COMPOSITING)
    renderCompositedLayers(&context, IntRect(clip.boundingRect()));
    renderFrameExtras(&context, QWebFrameAdapter::ScrollBarLayer | QWebFrameAdapter::PanIconLayer, clip);
#endif
    return true;
}

void QWebFramePrivate::renderPrivate(QPainter *painter, const QRegion &clip, bool contents)
{
    if (!frame->view() || !frame->contentRenderer())
        return;

    QVector<QRect> vector = clip.rects();
    if (vector.isEmpty())
        return;

    WebCore::FrameView* view = frame->view();
    view->layoutIfNeededRecursive();

    GraphicsContext context(painter);

    if (!contents)
        view->paint(&context, vector.first());
    else
        view->paintContents(&context, vector.first());

    for (int i = 1; i < vector.size(); ++i) {
        const QRect& clipRect = vector.at(i);
        painter->save();
        painter->setClipRect(clipRect, Qt::IntersectClip);
        if (!contents)
            view->paint(&context, clipRect);
        else
            view->paintContents(&context, clipRect);
        painter->restore();
    }
}

static void printFrames(const WebCore::Frame& frame, const WebCore::Frame* targetFrame, int indent)
{
    if (&frame == targetFrame) {
        printf("--> ");
        printIndent(indent - 1);
    } else
        printIndent(indent);

    WebCore::FrameView* view = frame.view();
    printf("Frame %p %dx%d\n", &frame, view ? view->width() : 0, view ? view->height() : 0);
    printIndent(indent);
    printf("  ownerElement=%p\n", frame.ownerElement());
    printIndent(indent);
    printf("  frameView=%p\n", view);
    printIndent(indent);
    printf("  document=%p\n", frame.document());
    printIndent(indent);
    printf("  uri=%s\n\n", frame.document()->documentURI().utf8().data());

    for (WebCore::Frame* child = frame.tree().firstChild(); child; child = child->tree().nextSibling())
        printFrames(*child, targetFrame, indent + 1);
}

WebCore::IntRect InjectedBundleHitTestResult::imageRect() const
{
    WebCore::IntRect imageRect = m_hitTestResult.imageRect();
    if (imageRect.isEmpty())
        return imageRect;
        
    // The image rect in WebCore::HitTestResult is in frame coordinates, but we need it in WKView
    // coordinates since WebKit2 clients don't have enough context to do the conversion themselves.
    WebFrame* webFrame = frame();
    if (!webFrame)
        return imageRect;
    
    WebCore::Frame* coreFrame = webFrame->coreFrame();
    if (!coreFrame)
        return imageRect;
    
    WebCore::FrameView* view = coreFrame->view();
    if (!view)
        return imageRect;
    
    return view->contentsToRootView(imageRect);
}

/*!
  Render the frame into \a painter clipping to \a clip.

  \sa print()
*/
void QWebFrame::render(QPainter *painter, const QRegion &clip)
{
    if (!d->frame->view() || !d->frame->contentRenderer())
        return;

    d->frame->view()->layoutIfNeededRecursive();

    GraphicsContext ctx(painter);
    QVector<QRect> vector = clip.rects();
    WebCore::FrameView* view = d->frame->view();
    for (int i = 0; i < vector.size(); ++i) {
        if (i > 0) {
            painter->save();
            painter->setClipRect(vector.at(i), Qt::IntersectClip);
        }

        view->paint(&ctx, vector.at(i));

        if (i > 0)
            painter->restore();
    }
}

void QWebFrameAdapter::renderFrameExtras(WebCore::GraphicsContext* context, int layers, const QRegion& clip)
{
    if (!(layers & (PanIconLayer | ScrollBarLayer)))
        return;
    QPainter* painter = context->platformContext();
    WebCore::FrameView* view = frame->view();
    QVector<QRect> vector = clip.rects();
    for (int i = 0; i < vector.size(); ++i) {
        const QRect& clipRect = vector.at(i);

        QRect intersectedRect = clipRect.intersected(view->frameRect());

        painter->save();
        painter->setClipRect(clipRect, Qt::IntersectClip);

        int x = view->x();
        int y = view->y();

        if (layers & ScrollBarLayer
                && !view->scrollbarsSuppressed()
                && (view->horizontalScrollbar() || view->verticalScrollbar())) {

            QRect rect = intersectedRect;
            context->translate(x, y);
            rect.translate(-x, -y);
            view->paintScrollbars(context, rect);
            context->translate(-x, -y);
        }

#if ENABLE(PAN_SCROLLING)
        if (layers & PanIconLayer)
            view->paintPanScrollIcon(context);
#endif

        painter->restore();
    }
}

void QWebFramePrivate::renderRelativeCoords(GraphicsContext* context, QWebFrame::RenderLayer layer, const QRegion& clip)
{
    if (!frame->view() || !frame->contentRenderer())
        return;

    QVector<QRect> vector = clip.rects();
    if (vector.isEmpty())
        return;

    QPainter* painter = context->platformContext();

    WebCore::FrameView* view = frame->view();
    view->layoutIfNeededRecursive();

    for (int i = 0; i < vector.size(); ++i) {
        const QRect& clipRect = vector.at(i);

        QRect intersectedRect = clipRect.intersected(view->frameRect());

        painter->save();
        painter->setClipRect(clipRect, Qt::IntersectClip);

        int x = view->x();
        int y = view->y();

        if (layer & QWebFrame::ContentsLayer) {
            context->save();

            int scrollX = view->scrollX();
            int scrollY = view->scrollY();

            QRect rect = intersectedRect;
            context->translate(x, y);
            rect.translate(-x, -y);
            context->translate(-scrollX, -scrollY);
            rect.translate(scrollX, scrollY);
            context->clip(view->visibleContentRect());

            view->paintContents(context, rect);

            context->restore();
        }

        if (layer & QWebFrame::ScrollBarLayer
            && !view->scrollbarsSuppressed()
            && (view->horizontalScrollbar() || view->verticalScrollbar())) {
            context->save();

            QRect rect = intersectedRect;
            context->translate(x, y);
            rect.translate(-x, -y);

            view->paintScrollbars(context, rect);

            context->restore();
        }

#if ENABLE(PAN_SCROLLING)
        if (layer & QWebFrame::PanIconLayer)
            view->paintPanScrollIcon(context);
#endif

        painter->restore();
    }
}

//.........这里部分代码省略.........
		break;

	case EA::WebKit::JumpUp:
		if (GetFixedString(mCachedNavigationUpId)->compare(""))
		{
			if (!GetFixedString(mCachedNavigationUpId)->compare("ignore"))
			{
				return false;
			}

			if (JumpToId(GetFixedString(mCachedNavigationUpId)->c_str()))
			{
				return true;
			}
		}
		break;

	default:
		EAW_FAIL_MSG("Should not have got here\n");
	}


	// Iterate over all the frames and find the closest element in any of all the frames.
	WebCore::Frame* pFrame		= mView->GetFrame();
	float currentRadialDistance = FLT_MAX; // A high value to start with so that the max distance between any two elements in the surface is under it.
	WebCore::Node* currentBestNode = NULL;
	while(pFrame)
	{
		WebCore::Document* document = pFrame->document();
		EAW_ASSERT(document);

		if(document)
		{
			WebCore::FrameView* pFrameView = document->view();
			WebCore::IntPoint scrollOffset;
			if(pFrameView)
			{
 				scrollOffset.setX(pFrameView->scrollOffset().width());
 				scrollOffset.setY(pFrameView->scrollOffset().height());
			}

			// We figure out the start position(It is center of the currently hovered element almost all the time but can be slightly different 
			// due to scroll sometimes).
			mCentreX = lastX + scrollOffset.x();
			mCentreY = lastY + scrollOffset.y();

			DocumentNavigator navigator(mView, document, direction, WebCore::IntPoint(mCentreX, mCentreY), mBestNodeX, mBestNodeY, mBestNodeWidth, mBestNodeHeight, mJumpNavigationParams.mNavigationTheta, mJumpNavigationParams.mStrictAxesCheck, currentRadialDistance);
			navigator.FindBestNode(document);

			if(navigator.GetBestNode())
			{
				currentBestNode			= navigator.GetBestNode();
				currentRadialDistance	= navigator.GetBestNodeRadialDistance();
			}

		}

		pFrame = pFrame->tree()->traverseNext();
	}

	bool foundSomething = false;
	if (currentBestNode) //We found the node to navigate. Move the cursor and we are done.
	{
		foundSomething = true;
		MoveMouseCursorToNode(currentBestNode, false);
	}

void ViewNavigationDelegate::MoveMouseCursorToNode(WebCore::Node* node, bool scrollIfNecessary)
{
	if (node)
	{
		WebCore::HTMLElement* element = (WebCore::HTMLElement*)node;

		WebCore::IntRect rect = element->getRect();
		WebCore::IntPoint frameOffset;
		WebCore::IntPoint scrollOffset;

		WebCore::FrameView* pFrameView = element->document()->view(); //Can be NULL
		if(pFrameView)
		{
			//Use move here instead of setX/setY as it results in 1 call instead of two and takes advantage that ctor sets x,y to 0.
			frameOffset.move(pFrameView->x(), pFrameView->y());
			scrollOffset.move(pFrameView->scrollOffset().width(), pFrameView->scrollOffset().height());
		}

		int width = mView->GetSize().mWidth;
		int height = mView->GetSize().mHeight;

		// This will be true if this function is called from anywhere except JumpToNearestElement(). This enables us to not lose the cursor during
		// arbitrary jumping of elements from either code or webpage using the Navigation APIs.
		if(scrollIfNecessary)
		{
			int cursorX, cursorY;
			mView->GetCursorPosition(cursorX, cursorY);

			WebCore::IntPoint targetCursorLocation(frameOffset.x()+rect.x()+rect.width()/2  - scrollOffset.x(), frameOffset.y()+rect.y()+rect.height()/2  - scrollOffset.y());
			// Added 1 in all the line delta below resulting in a better visual behavior when the element happens to be at the edge.
			if(targetCursorLocation.y() > height)
			{
                float numLinesDelta = (((targetCursorLocation.y() - cursorY)/WebCore::Scrollbar::pixelsPerLineStep())+1);
				ScrollOnJump(true, -120, numLinesDelta);
			}
			if(targetCursorLocation.y()< 0.0f)
			{
				float numLinesDelta = (((cursorY - targetCursorLocation.y())/WebCore::Scrollbar::pixelsPerLineStep())+1);
				ScrollOnJump(true, 120, numLinesDelta);
			}
			if(targetCursorLocation.x() > width)
			{
				float numLinesDelta = (((targetCursorLocation.x() - cursorX)/WebCore::Scrollbar::pixelsPerLineStep())+1);
				ScrollOnJump(false, -120, numLinesDelta);
			}
			if(targetCursorLocation.x()< 0.0f)
			{
				float numLinesDelta = (((cursorX - targetCursorLocation.x())/WebCore::Scrollbar::pixelsPerLineStep())+1);
				ScrollOnJump(false, 120, numLinesDelta);
			}

			// Read the scroll offset again as it may have changed.
			if(pFrameView) 
			{
				scrollOffset.setX(pFrameView->scrollOffset().width());
				scrollOffset.setY(pFrameView->scrollOffset().height());
			}
		}

		mBestNodeFrame	= element->document()->frame(); //Can be NULL
		mBestNodeX		= frameOffset.x()  + rect.x();
		mBestNodeY		= frameOffset.y()  + rect.y();
		mBestNodeWidth	= rect.width();
		mBestNodeHeight = rect.height();

		int lastX, lastY;
		mView->GetCursorPosition(lastX, lastY);
		int newX		= mBestNodeX + rect.width()/2  - scrollOffset.x();
		int newY		= mBestNodeY + rect.height()/2 - scrollOffset.y();

		EA::WebKit::MouseMoveEvent moveEvent;
		memset( &moveEvent, 0, sizeof(moveEvent) );
		const int cursorInset = 5;// Make cursor stay inside 5 pixels from boundaries. No known issues but added this as a safety measure so that we do not lose cursor ever.
		moveEvent.mX	= Clamp( cursorInset, newX, width - cursorInset );
		moveEvent.mY	= Clamp( cursorInset, newY, height - cursorInset );

		mView->OnMouseMoveEvent( moveEvent );

		if(EAWebKitClient* const pClient = GetEAWebKitClient())
		{
			CursorMovedInfo cmInfo(mView, mView->GetUserData(), moveEvent.mX, moveEvent.mY);
			pClient->CursorMoved(cmInfo);
		}

		UpdateCachedHints(node);

	}
}

		void DocumentNavigator::FindBestNode(WebCore::Node* rootNode)
		{
			// Note by Arpit Baldeva - Changed the recursive algorithm to an iterative algorithm. This results in 25% to 40% increase in efficiency.
			
			while (rootNode) 
			{
				IsNodeNavigableDelegate nodeNavigableDelegate(mView);
				// As it turns out, getRect on HTMLElement is pretty expensive. So we don't do it inside the delegate as we require getRect here too. We do that check here.
				// It is at least ~15% more efficient and can be up to ~25% more efficient (depends on the page layout and current node you are at).
				nodeNavigableDelegate(rootNode,false);

				if (nodeNavigableDelegate.FoundNode())
				{
					WebCore::HTMLElement* htmlElement = (WebCore::HTMLElement*) rootNode;
					WebCore::IntRect rectAbsolute = htmlElement->getRect();		
					// Adjust the rectangle position based on the frame offset so that we have absolute geometrical position.
					WebCore::FrameView* pFrameView = htmlElement->document()->view(); //Can be NULL
					if(pFrameView)
					{
						rectAbsolute.setX(rectAbsolute.x() + pFrameView->x());
						rectAbsolute.setY(rectAbsolute.y() + pFrameView->y());
					}

					 /* printf("Looking at ELEMENT_NODE : nodeName=%S (%d,%d)->(%d,%d) ThetaRange(%f,%f)\n\n%S\n-----------------------------------\n", 
											htmlElement->tagName().charactersWithNullTermination(),
											rect.topLeft().x(),rect.topLeft().y(),
											rect.bottomRight().x(), rect.bottomRight().y(),
											mMinThetaRange,mMaxThetaRange,
											htmlElement->innerHTML().charactersWithNullTermination()
											);
										*/

					if (!WouldBeTrappedInElement(rectAbsolute,mStartingPosition,mDirection))
					{
						if (!TryingToDoPerpendicularJump(rectAbsolute,mPreviousNodeRect,mDirection))
						{
							if(rectAbsolute.width()>=1 && rectAbsolute.height() >= 1) //Avoid 0 size elements
							{
								if (doAxisCheck(rectAbsolute))
								{
									PolarRegion pr(rectAbsolute, mStartingPosition);

									if (pr.minR < mMinR )
									{
										if (areAnglesInRange(pr.minTheta,pr.maxTheta))
										{
											mMinR = pr.minR;

											EAW_ASSERT( *(uint32_t*)rootNode > 10000000u );

											//mBestNode = rootNode; //We don't assign it here since we do the Z-layer testing later on.
											FoundNodeInfo foundNodeInfo = {rootNode, mMinR};
											mNodeListContainer->mFoundNodes.push_back(foundNodeInfo);
											/*printf("Found ELEMENT_NODE : nodeName=%s (%d,%d)->(%d,%d) polar: R(%f,%f) Theta(%f,%f) ThetaRange(%f,%f)  \n", 
											(char*)htmlElement->nodeName().characters(),
											rect.topLeft().x(),rect.topLeft().y(),
											rect.bottomRight().x(), rect.bottomRight().y(),
											pr.minR,pr.maxR,pr.minTheta,pr.maxTheta,
											mMinThetaRange,mMaxThetaRange
											);*/
											
										} 
										else
										{
											
#if EAWEBKIT_ENABLE_JUMP_NAVIGATION_DEBUGGING
											mNodeListContainer->mRejectedByAngleNodes.push_back(rootNode);
#endif
											/*printf("RejectedA ELEMENT_NODE : nodeName=%s (%d,%d)->(%d,%d) polar: R(%f,%f) Theta(%f,%f) ThetaRange(%f,%f)  \n", 
											(char*)htmlElement->nodeName().characters(),
											rect.topLeft().x(),rect.topLeft().y(),
											rect.bottomRight().x(), rect.bottomRight().y(),
											pr.minR,pr.maxR,pr.minTheta,pr.maxTheta,
											mMinThetaRange,mMaxThetaRange
											);*/
										}
									} 
									else
									{
#if EAWEBKIT_ENABLE_JUMP_NAVIGATION_DEBUGGING
										mNodeListContainer->mRejectedByRadiusNodes.push_back(rootNode);
#endif
										/*printf("RejectedR ELEMENT_NODE : nodeName=%s (%d,%d)->(%d,%d) polar: R(%f,%f) Theta(%f,%f) ThetaRange(%f,%f)  \n", 
										(char*)htmlElement->nodeName().characters(),
										rect.topLeft().x(),rect.topLeft().y(),
										rect.bottomRight().x(), rect.bottomRight().y(),
										pr.minR,pr.maxR,pr.minTheta,pr.maxTheta,
										mMinThetaRange,mMaxThetaRange
										);*/
									}
								}
								else
								{
									//printf(" - failed axis check\n");
								}
							}
							else
							{
								//printf(" - too small\n");
							}
//.........这里部分代码省略.........