bool DevToolsEmulator::handleInputEvent(const WebInputEvent& inputEvent)
{
    Page* page = m_webViewImpl->page();
    if (!page)
        return false;

    // FIXME: This workaround is required for touch emulation on Mac, where
    // compositor-side pinch handling is not enabled. See http://crbug.com/138003.
    bool isPinch = inputEvent.type == WebInputEvent::GesturePinchBegin || inputEvent.type == WebInputEvent::GesturePinchUpdate || inputEvent.type == WebInputEvent::GesturePinchEnd;
    if (isPinch && m_touchEventEmulationEnabled) {
        FrameView* frameView = page->deprecatedLocalMainFrame()->view();
        PlatformGestureEventBuilder gestureEvent(frameView, static_cast<const WebGestureEvent&>(inputEvent));
        float pageScaleFactor = page->pageScaleFactor();
        if (gestureEvent.type() == PlatformEvent::GesturePinchBegin) {
            m_lastPinchAnchorCss = adoptPtr(new IntPoint(frameView->scrollPosition() + gestureEvent.position()));
            m_lastPinchAnchorDip = adoptPtr(new IntPoint(gestureEvent.position()));
            m_lastPinchAnchorDip->scale(pageScaleFactor, pageScaleFactor);
        }
        if (gestureEvent.type() == PlatformEvent::GesturePinchUpdate && m_lastPinchAnchorCss) {
            float newPageScaleFactor = pageScaleFactor * gestureEvent.scale();
            IntPoint anchorCss(*m_lastPinchAnchorDip.get());
            anchorCss.scale(1.f / newPageScaleFactor, 1.f / newPageScaleFactor);
            m_webViewImpl->setPageScaleFactor(newPageScaleFactor);
            m_webViewImpl->mainFrame()->setScrollOffset(toIntSize(*m_lastPinchAnchorCss.get() - toIntSize(anchorCss)));
        }
        if (gestureEvent.type() == PlatformEvent::GesturePinchEnd) {
            m_lastPinchAnchorCss.clear();
            m_lastPinchAnchorDip.clear();
        }
        return true;
    }

    return false;
}
Beispiel #2
0
bool WebDevToolsAgentImpl::handleInputEvent(WebCore::Page* page, const WebInputEvent& inputEvent)
{
    if (!m_attached && !m_generatingEvent)
        return false;

    // FIXME: This workaround is required for touch emulation on Mac, where
    // compositor-side pinch handling is not enabled. See http://crbug.com/138003.
    bool isPinch = inputEvent.type == WebInputEvent::GesturePinchBegin || inputEvent.type == WebInputEvent::GesturePinchUpdate || inputEvent.type == WebInputEvent::GesturePinchEnd;
    if (isPinch && m_touchEventEmulationEnabled && m_emulateViewportEnabled) {
        FrameView* frameView = page->mainFrame()->view();
        PlatformGestureEventBuilder gestureEvent(frameView, *static_cast<const WebGestureEvent*>(&inputEvent));
        float pageScaleFactor = page->pageScaleFactor();
        if (gestureEvent.type() == PlatformEvent::GesturePinchBegin) {
            m_lastPinchAnchorCss = adoptPtr(new WebCore::IntPoint(frameView->scrollPosition() + gestureEvent.position()));
            m_lastPinchAnchorDip = adoptPtr(new WebCore::IntPoint(gestureEvent.position()));
            m_lastPinchAnchorDip->scale(pageScaleFactor, pageScaleFactor);
        }
        if (gestureEvent.type() == PlatformEvent::GesturePinchUpdate && m_lastPinchAnchorCss) {
            float newPageScaleFactor = pageScaleFactor * gestureEvent.scale();
            WebCore::IntPoint anchorCss(*m_lastPinchAnchorDip.get());
            anchorCss.scale(1.f / newPageScaleFactor, 1.f / newPageScaleFactor);
            m_webViewImpl->setPageScaleFactor(newPageScaleFactor);
            m_webViewImpl->setMainFrameScrollOffset(*m_lastPinchAnchorCss.get() - toIntSize(anchorCss));
        }
        if (gestureEvent.type() == PlatformEvent::GesturePinchEnd) {
            m_lastPinchAnchorCss.clear();
            m_lastPinchAnchorDip.clear();
        }
        return true;
    }

    InspectorController* ic = inspectorController();
    if (!ic)
        return false;

    if (WebInputEvent::isGestureEventType(inputEvent.type) && inputEvent.type == WebInputEvent::GestureTap) {
        // Only let GestureTab in (we only need it and we know PlatformGestureEventBuilder supports it).
        PlatformGestureEvent gestureEvent = PlatformGestureEventBuilder(page->mainFrame()->view(), *static_cast<const WebGestureEvent*>(&inputEvent));
        return ic->handleGestureEvent(page->mainFrame(), gestureEvent);
    }
    if (WebInputEvent::isMouseEventType(inputEvent.type) && inputEvent.type != WebInputEvent::MouseEnter) {
        // PlatformMouseEventBuilder does not work with MouseEnter type, so we filter it out manually.
        PlatformMouseEvent mouseEvent = PlatformMouseEventBuilder(page->mainFrame()->view(), *static_cast<const WebMouseEvent*>(&inputEvent));
        return ic->handleMouseEvent(page->mainFrame(), mouseEvent);
    }
    if (WebInputEvent::isTouchEventType(inputEvent.type)) {
        PlatformTouchEvent touchEvent = PlatformTouchEventBuilder(page->mainFrame()->view(), *static_cast<const WebTouchEvent*>(&inputEvent));
        return ic->handleTouchEvent(page->mainFrame(), touchEvent);
    }
    if (WebInputEvent::isKeyboardEventType(inputEvent.type)) {
        PlatformKeyboardEvent keyboardEvent = PlatformKeyboardEventBuilder(*static_cast<const WebKeyboardEvent*>(&inputEvent));
        return ic->handleKeyboardEvent(page->mainFrame(), keyboardEvent);
    }
    return false;
}