C++ webcore::IntPoint类代码示例

WebCore::IntRect SelectionHandler::selectionEndCaretRect()
{
    if (!m_selectionActive)
        return IntRect();

    ASSERT(m_webPage && m_webPage->focusedOrMainFrame() && m_webPage->focusedOrMainFrame()->selection());

    WebCore::IntRect caretLocation(m_webPage->focusedOrMainFrame()->selection()->selection().visibleEnd().absoluteCaretBounds());

    SelectionController nextCaretSelection;
    nextCaretSelection.setSelection(VisibleSelection(m_webPage->focusedOrMainFrame()->selection()->selection().visibleEnd()));
    nextCaretSelection.modify(SelectionController::AlterationMove, SelectionController::DirectionForward, CharacterGranularity);
    WebCore::IntRect nextCaretLocation(nextCaretSelection.selection().visibleStart().absoluteCaretBounds());

    if (nextCaretLocation.y() == caretLocation.y()) {
        // The next caret position is on this line, use the middle of the character
        // as the active selection point.
        caretLocation.move((nextCaretLocation.x() - caretLocation.x()) / 2, 0);
    } else {
        // Caret position is at the end of a line, advance 1 pixel to ensure
        // overlap with character.
        caretLocation.move(1, 0);
    }

    if (m_webPage->focusedOrMainFrame()->ownerRenderer()) {
        WebCore::IntPoint frameOffset = m_webPage->focusedOrMainFrame()->ownerRenderer()->absoluteContentBox().location();
        caretLocation.move(frameOffset.x(), frameOffset.y());
    }
    return caretLocation;
}

WebCore::IntPoint ChromeClient::screenToWindow(const WebCore::IntPoint& screePoint) const 
{
    HWND hwnd = m_webView ? m_webView->hostWindow() : NULL;
    if (!IsWindow(hwnd))
        return screePoint;

    POINT tempPoint = { screePoint.x(), screePoint.y() };
    ScreenToClient(hwnd, &tempPoint);

    WebCore::IntPoint windowPoint(tempPoint.x, tempPoint.y);
    return windowPoint;
}

WebCore::IntRect SelectionHandler::selectionStartCaretRect()
{
    if (!m_selectionActive)
        return IntRect();

    ASSERT(m_webPage && m_webPage->focusedOrMainFrame() && m_webPage->focusedOrMainFrame()->selection());

    WebCore::IntRect caretLocation(m_webPage->focusedOrMainFrame()->selection()->selection().visibleStart().absoluteCaretBounds());

    if (m_webPage->focusedOrMainFrame()->ownerRenderer()) {
        WebCore::IntPoint frameOffset = m_webPage->focusedOrMainFrame()->ownerRenderer()->absoluteContentBox().location();
        caretLocation.move(frameOffset.x(), frameOffset.y());
    }
    return caretLocation;
}

void SelectionHandler::selectObject(WebCore::IntPoint& location, TextGranularity granularity)
{
    m_selectionActive = true;

    ASSERT(m_webPage && m_webPage->mainFrame() && m_webPage->mainFrame()->selection());
    Frame* frame = m_webPage->mainFrame();

#if SHOWDEBUG_SELECTIONHANDLER
    Olympia::Platform::log(Olympia::Platform::LogLevelInfo, "SelectionHandler::selectWord adjusted points %d, %d", location.x(), location.y());
#endif

    expandSelectionToGranularity(frame, location.x(), location.y(), granularity, m_webPage->m_inputHandler->isInputMode());

    // Need to manually trigger notification as response to change.
    selectionPositionChanged();
}

void SelectionOverlay::paintContents(const GraphicsLayer* layer, GraphicsContext& c, GraphicsLayerPaintingPhase, const IntRect& inClip)
{
    if (!layer->platformLayer()->superlayer())
        return;

    Selection::iterator it = m_selection.find(layer->platformLayer()->superlayer()->owner());
    if (it == m_selection.end())
        return;

    const Vector<WebCore::FloatQuad>& quads = it->value;
    GraphicsLayer* parent = it->key;

    IntRect clip(inClip);
    clip.move(parent->offsetFromRenderer().width(), parent->offsetFromRenderer().height());

    c.save();

    c.translate(-parent->offsetFromRenderer().width(), -parent->offsetFromRenderer().height());

    Color color = RenderTheme::defaultTheme()->activeSelectionBackgroundColor();
    c.setFillColor(color, ColorSpaceDeviceRGB);

    for (unsigned i = 0; i < quads.size(); ++i) {
        FloatRect rectToPaint = quads[i].boundingBox();

        // Selection on non-composited sub-frames need to be adjusted.
        if (!m_page->focusedOrMainFrame()->contentRenderer()->isComposited()) {
            WebCore::IntPoint framePosition = m_page->frameOffset(m_page->focusedOrMainFrame());
            rectToPaint.move(framePosition.x(), framePosition.y());
        }

        rectToPaint.intersect(clip);
        if (rectToPaint.isEmpty())
            continue;

        c.fillRect(rectToPaint);
    }

    c.restore();
}

//.........这里部分代码省略.........

	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);
	}
	else if(scrollIfElementNotFound)// Node is not found. 

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 SelectionHandler::setSelection(WebCore::IntPoint start, WebCore::IntPoint end)
{
    m_selectionActive = true;

    ASSERT(m_webPage && m_webPage->mainFrame() && m_webPage->mainFrame()->selection());
    Frame* frame = m_webPage->mainFrame();
    ASSERT(frame);

#if SHOWDEBUG_SELECTIONHANDLER
    Olympia::Platform::log(Olympia::Platform::LogLevelInfo, "SelectionHandler::setSelection adjusted points %d, %d, %d, %d", start.x(), start.y(), end.x(), end.y());
#endif

    bool selectionIsValid = true;
    VisibleSelection newSelection(frame->visiblePositionForPoint(start), frame->visiblePositionForPoint(end));

    // Validate the new points to avoid crossing frame or editing boundaries.
    if (m_webPage->mainFrame() != m_webPage->focusedOrMainFrame() && m_webPage->focusedOrMainFrame()->ownerRenderer()) {
        // Current focus frame is not the main frame, it must be a subframe.
        WebCore::IntRect subframeRect = m_webPage->focusedOrMainFrame()->ownerRenderer()->absoluteContentBox();
        if (!subframeRect.contains(start) || !subframeRect.contains(end)) {
            // Requested selection points are outside of current frame.
            selectionIsValid = false;
        }
    }
    // Check whether selection is occurring inside of an input field.  Do not handle as
    // an else if, an input field may be active inside of a subframe.
    if (m_webPage->m_inputHandler->isInputMode() && !selectionIsContainedByAnchorNode(newSelection)) {
        // Requested selection points are not contained within the anchor node (input field).
        selectionIsValid = false;
    }

    if (selectionIsValid) {
        frame->selection()->setSelection(newSelection);

#if SHOWDEBUG_SELECTIONHANDLER
        Olympia::Platform::log(Olympia::Platform::LogLevelInfo, "SelectionHandler::setSelection selection points valid, selection updated");
#endif
    }

    // Need to manually trigger notification as response to change.
    // This needs to be set even if no selection change occurs to ensure client has accurate
    // selection points.
    selectionPositionChanged();
}