Esempi in C++ (Cpp) per clampOffsetToBoundaries

Esempio n. 1

File: PinchViewport.cpp Progetto: ewilligers/blink

void PinchViewport::setLocation(const FloatPoint& newLocation)
{
    FloatPoint clampedOffset(clampOffsetToBoundaries(newLocation));

    if (clampedOffset == m_offset)
        return;

    m_offset = clampedOffset;

    ScrollingCoordinator* coordinator = m_frameHost.page().scrollingCoordinator();
    ASSERT(coordinator);
    coordinator->scrollableAreaScrollLayerDidChange(this);

    mainFrame()->loader().saveScrollState();
}

Esempio n. 2

File: VisualViewport.cpp Progetto: shaoboyan/chromium-crosswalk

void VisualViewport::setScaleAndLocation(float scale, const FloatPoint& location)
{
    if (!mainFrame())
        return;

    bool valuesChanged = false;

    if (scale != m_scale) {
        m_scale = scale;
        valuesChanged = true;
        frameHost().chromeClient().pageScaleFactorChanged();
    }

    FloatPoint clampedOffset(clampOffsetToBoundaries(location));

    if (clampedOffset != m_offset) {
        m_offset = clampedOffset;
        scrollAnimator()->setCurrentPosition(m_offset);

        // SVG runs with accelerated compositing disabled so no ScrollingCoordinator.
        if (ScrollingCoordinator* coordinator = frameHost().page().scrollingCoordinator())
            coordinator->scrollableAreaScrollLayerDidChange(this);

        if (!frameHost().settings().inertVisualViewport()) {
            if (Document* document = mainFrame()->document())
                document->enqueueScrollEventForNode(document);
        }

        mainFrame()->loader().client()->didChangeScrollOffset();
        valuesChanged = true;
    }

    if (!valuesChanged)
        return;

    InspectorInstrumentation::didUpdateLayout(mainFrame());
    mainFrame()->loader().saveScrollState();

    clampToBoundaries();
}