Source/web/WebPopupMenuImpl.cpp

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This source file includes following definitions.
create
m_widget
willCloseLayerTreeView
initialize
handleMouseMove
handleMouseLeave
handleMouseDown
handleMouseUp
handleMouseWheel
handleGestureEvent
handleTouchEvent
handleKeyEvent
close
willStartLiveResize
resize
willEndLiveResize
animate
layout
enterForceCompositingMode
didExitCompositingMode
paintContents
paint
themeChanged
handleInputEvent
mouseCaptureLost
setFocus
setComposition
confirmComposition
confirmComposition
confirmComposition
compositionRange
caretOrSelectionRange
setTextDirection
invalidateContentsAndRootView
invalidateContentsForSlowScroll
scheduleAnimation
scroll
rootViewToScreen
screenInfo
popupClosed
/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "WebPopupMenuImpl.h"

#include "PopupContainer.h"
#include "PopupMenuChromium.h"
#include "WebInputEvent.h"
#include "WebInputEventConversion.h"
#include "WebRange.h"
#include "WebViewClient.h"
#include "WebWidgetClient.h"
#include "core/frame/FrameView.h"
#include "platform/Cursor.h"
#include "platform/NotImplemented.h"
#include "platform/PlatformGestureEvent.h"
#include "platform/PlatformKeyboardEvent.h"
#include "platform/PlatformMouseEvent.h"
#include "platform/PlatformWheelEvent.h"
#include "platform/geometry/IntRect.h"
#include "platform/graphics/GraphicsContext.h"
#include "platform/graphics/skia/SkiaUtils.h"
#include "platform/scroll/FramelessScrollView.h"
#include "public/platform/Platform.h"
#include "public/platform/WebCompositorSupport.h"
#include "public/platform/WebContentLayer.h"
#include "public/platform/WebFloatRect.h"
#include "public/platform/WebLayerTreeView.h"
#include "public/platform/WebRect.h"
#include <skia/ext/platform_canvas.h>

using namespace WebCore;

namespace blink {

// WebPopupMenu ---------------------------------------------------------------

WebPopupMenu* WebPopupMenu::create(WebWidgetClient* client)
{
    // Pass the WebPopupMenuImpl's self-reference to the caller.
    return adoptRef(new WebPopupMenuImpl(client)).leakRef();
}

// WebWidget ------------------------------------------------------------------

WebPopupMenuImpl::WebPopupMenuImpl(WebWidgetClient* client)
    : m_client(client)
    , m_layerTreeView(0)
    , m_isAcceleratedCompositingActive(false)
    // Set to impossible point so we always get the first mouse position.
    , m_lastMousePosition(WebPoint(-1, -1))
    , m_widget(0)
{
}

WebPopupMenuImpl::~WebPopupMenuImpl()
{
    if (m_widget)
        m_widget->setClient(0);
}

void WebPopupMenuImpl::willCloseLayerTreeView()
{
    enterForceCompositingMode(false);
    m_layerTreeView = 0;
}

void WebPopupMenuImpl::initialize(FramelessScrollView* widget, const WebRect& bounds)
{
    m_widget = widget;
    m_widget->setClient(this);

    if (m_client) {
        m_client->setWindowRect(bounds);
        m_client->show(WebNavigationPolicy()); // Policy is ignored.
    }
}

void WebPopupMenuImpl::handleMouseMove(const WebMouseEvent& event)
{
    // Don't send mouse move messages if the mouse hasn't moved.
    if (event.x != m_lastMousePosition.x || event.y != m_lastMousePosition.y) {
        m_lastMousePosition = WebPoint(event.x, event.y);
        m_widget->handleMouseMoveEvent(PlatformMouseEventBuilder(m_widget, event));

        // We cannot call setToolTipText() in PopupContainer, because PopupContainer is in WebCore, and we cannot refer to WebKit from Webcore.
        PopupContainer* container = static_cast<PopupContainer*>(m_widget);
        client()->setToolTipText(container->getSelectedItemToolTip(), container->menuStyle().textDirection() == WebCore::RTL ? WebTextDirectionRightToLeft : WebTextDirectionLeftToRight);
    }
}

void WebPopupMenuImpl::handleMouseLeave(const WebMouseEvent& event)
{
    m_widget->handleMouseMoveEvent(PlatformMouseEventBuilder(m_widget, event));
}

void WebPopupMenuImpl::handleMouseDown(const WebMouseEvent& event)
{
    m_widget->handleMouseDownEvent(PlatformMouseEventBuilder(m_widget, event));
}

void WebPopupMenuImpl::handleMouseUp(const WebMouseEvent& event)
{
    mouseCaptureLost();
    m_widget->handleMouseReleaseEvent(PlatformMouseEventBuilder(m_widget, event));
}

void WebPopupMenuImpl::handleMouseWheel(const WebMouseWheelEvent& event)
{
    m_widget->handleWheelEvent(PlatformWheelEventBuilder(m_widget, event));
}

bool WebPopupMenuImpl::handleGestureEvent(const WebGestureEvent& event)
{
    return m_widget->handleGestureEvent(PlatformGestureEventBuilder(m_widget, event));
}

bool WebPopupMenuImpl::handleTouchEvent(const WebTouchEvent& event)
{

    PlatformTouchEventBuilder touchEventBuilder(m_widget, event);
    bool defaultPrevented(m_widget->handleTouchEvent(touchEventBuilder));
    return defaultPrevented;
}

bool WebPopupMenuImpl::handleKeyEvent(const WebKeyboardEvent& event)
{
    return m_widget->handleKeyEvent(PlatformKeyboardEventBuilder(event));
}

// WebWidget -------------------------------------------------------------------

void WebPopupMenuImpl::close()
{
    if (m_widget)
        m_widget->hide();

    m_client = 0;

    deref(); // Balances ref() from WebPopupMenu::create.
}

void WebPopupMenuImpl::willStartLiveResize()
{
}

void WebPopupMenuImpl::resize(const WebSize& newSize)
{
    if (m_size == newSize)
        return;
    m_size = newSize;

    if (m_widget) {
        IntRect newGeometry(0, 0, m_size.width, m_size.height);
        m_widget->setFrameRect(newGeometry);
    }

    if (m_client) {
        WebRect damagedRect(0, 0, m_size.width, m_size.height);
        m_client->didInvalidateRect(damagedRect);
    }

    if (m_rootLayer)
        m_rootLayer->layer()->setBounds(newSize);
}

void WebPopupMenuImpl::willEndLiveResize()
{
}

void WebPopupMenuImpl::animate(double)
{
}

void WebPopupMenuImpl::layout()
{
}

void WebPopupMenuImpl::enterForceCompositingMode(bool enter)
{
    if (m_isAcceleratedCompositingActive == enter)
        return;

    if (!enter) {
        m_isAcceleratedCompositingActive = false;
        m_client->didDeactivateCompositor();
    } else if (m_layerTreeView) {
        m_isAcceleratedCompositingActive = true;
        m_client->didActivateCompositor();
    } else {
        TRACE_EVENT0("webkit", "WebPopupMenuImpl::enterForceCompositingMode(true)");

        m_client->initializeLayerTreeView();
        m_layerTreeView = m_client->layerTreeView();
        if (m_layerTreeView) {
            m_layerTreeView->setVisible(true);
            m_client->didActivateCompositor();
            m_isAcceleratedCompositingActive = true;
            m_layerTreeView->setDeviceScaleFactor(m_client->deviceScaleFactor());
            m_rootLayer = adoptPtr(Platform::current()->compositorSupport()->createContentLayer(this));
            m_rootLayer->layer()->setBounds(m_size);
            m_layerTreeView->setRootLayer(*m_rootLayer->layer());
        } else {
            m_isAcceleratedCompositingActive = false;
            m_client->didDeactivateCompositor();
        }
    }
}

void WebPopupMenuImpl::didExitCompositingMode()
{
    enterForceCompositingMode(false);
    m_client->didInvalidateRect(IntRect(0, 0, m_size.width, m_size.height));
}

void WebPopupMenuImpl::paintContents(WebCanvas* canvas, const WebRect& rect, bool, WebFloatRect&)
{
    if (!m_widget)
        return;

    if (!rect.isEmpty()) {
        GraphicsContext context(canvas);
        m_widget->paint(&context, rect);
    }
}

void WebPopupMenuImpl::paint(WebCanvas* canvas, const WebRect& rect, PaintOptions)
{
    if (!m_widget)
        return;

    if (!rect.isEmpty()) {
        GraphicsContext context(canvas);
        context.applyDeviceScaleFactor(m_client->deviceScaleFactor());
        m_widget->paint(&context, rect);
    }
}

void WebPopupMenuImpl::themeChanged()
{
    notImplemented();
}

bool WebPopupMenuImpl::handleInputEvent(const WebInputEvent& inputEvent)
{
    if (!m_widget)
        return false;

    // FIXME: WebKit seems to always return false on mouse events methods. For
    // now we'll assume it has processed them (as we are only interested in
    // whether keyboard events are processed).
    switch (inputEvent.type) {
    case WebInputEvent::MouseMove:
        handleMouseMove(*static_cast<const WebMouseEvent*>(&inputEvent));
        return true;

    case WebInputEvent::MouseLeave:
        handleMouseLeave(*static_cast<const WebMouseEvent*>(&inputEvent));
        return true;

    case WebInputEvent::MouseWheel:
        handleMouseWheel(*static_cast<const WebMouseWheelEvent*>(&inputEvent));
        return true;

    case WebInputEvent::MouseDown:
        handleMouseDown(*static_cast<const WebMouseEvent*>(&inputEvent));
        return true;

    case WebInputEvent::MouseUp:
        handleMouseUp(*static_cast<const WebMouseEvent*>(&inputEvent));
        return true;

    // In Windows, RawKeyDown only has information about the physical key, but
    // for "selection", we need the information about the character the key
    // translated into. For English, the physical key value and the character
    // value are the same, hence, "selection" works for English. But for other
    // languages, such as Hebrew, the character value is different from the
    // physical key value. Thus, without accepting Char event type which
    // contains the key's character value, the "selection" won't work for
    // non-English languages, such as Hebrew.
    case WebInputEvent::RawKeyDown:
    case WebInputEvent::KeyDown:
    case WebInputEvent::KeyUp:
    case WebInputEvent::Char:
        return handleKeyEvent(*static_cast<const WebKeyboardEvent*>(&inputEvent));

    case WebInputEvent::TouchStart:
    case WebInputEvent::TouchMove:
    case WebInputEvent::TouchEnd:
    case WebInputEvent::TouchCancel:
        return handleTouchEvent(*static_cast<const WebTouchEvent*>(&inputEvent));

    case WebInputEvent::GestureScrollBegin:
    case WebInputEvent::GestureScrollEnd:
    case WebInputEvent::GestureScrollUpdate:
    case WebInputEvent::GestureScrollUpdateWithoutPropagation:
    case WebInputEvent::GestureFlingStart:
    case WebInputEvent::GestureFlingCancel:
    case WebInputEvent::GestureTap:
    case WebInputEvent::GestureTapUnconfirmed:
    case WebInputEvent::GestureTapDown:
    case WebInputEvent::GestureShowPress:
    case WebInputEvent::GestureTapCancel:
    case WebInputEvent::GestureDoubleTap:
    case WebInputEvent::GestureTwoFingerTap:
    case WebInputEvent::GestureLongPress:
    case WebInputEvent::GestureLongTap:
    case WebInputEvent::GesturePinchBegin:
    case WebInputEvent::GesturePinchEnd:
    case WebInputEvent::GesturePinchUpdate:
        return handleGestureEvent(*static_cast<const WebGestureEvent*>(&inputEvent));

    case WebInputEvent::Undefined:
    case WebInputEvent::MouseEnter:
    case WebInputEvent::ContextMenu:
        return false;
    }
    return false;
}

void WebPopupMenuImpl::mouseCaptureLost()
{
}

void WebPopupMenuImpl::setFocus(bool)
{
}

bool WebPopupMenuImpl::setComposition(const WebString&, const WebVector<WebCompositionUnderline>&, int, int)
{
    return false;
}

bool WebPopupMenuImpl::confirmComposition()
{
    return false;
}

bool WebPopupMenuImpl::confirmComposition(ConfirmCompositionBehavior)
{
    return false;
}

bool WebPopupMenuImpl::confirmComposition(const WebString&)
{
    return false;
}

bool WebPopupMenuImpl::compositionRange(size_t* location, size_t* length)
{
    *location = 0;
    *length = 0;
    return false;
}

bool WebPopupMenuImpl::caretOrSelectionRange(size_t* location, size_t* length)
{
    *location = 0;
    *length = 0;
    return false;
}

void WebPopupMenuImpl::setTextDirection(WebTextDirection)
{
}


//-----------------------------------------------------------------------------
// WebCore::HostWindow

void WebPopupMenuImpl::invalidateContentsAndRootView(const IntRect& paintRect)
{
    if (paintRect.isEmpty())
        return;
    if (m_client)
        m_client->didInvalidateRect(paintRect);
    if (m_rootLayer)
        m_rootLayer->layer()->invalidateRect(FloatRect(paintRect));
}

void WebPopupMenuImpl::invalidateContentsForSlowScroll(const IntRect& updateRect)
{
    invalidateContentsAndRootView(updateRect);
}

void WebPopupMenuImpl::scheduleAnimation()
{
}

void WebPopupMenuImpl::scroll(const IntSize& scrollDelta, const IntRect& scrollRect, const IntRect& clipRect)
{
    if (m_client) {
        int dx = scrollDelta.width();
        int dy = scrollDelta.height();
        m_client->didScrollRect(dx, dy, clipRect);
    }
    if (m_rootLayer)
        m_rootLayer->layer()->invalidateRect(FloatRect(clipRect));
}

IntRect WebPopupMenuImpl::rootViewToScreen(const IntRect& rect) const
{
    notImplemented();
    return IntRect();
}

WebScreenInfo WebPopupMenuImpl::screenInfo() const
{
    return WebScreenInfo();
}

//-----------------------------------------------------------------------------
// WebCore::FramelessScrollViewClient

void WebPopupMenuImpl::popupClosed(FramelessScrollView* widget)
{
    ASSERT(widget == m_widget);
    if (m_widget) {
        m_widget->setClient(0);
        m_widget = 0;
    }
    if (m_client)
        m_client->closeWidgetSoon();
}

} // namespace blink
/* [<][>][^][v][top][bottom][index][help] */
root/Source/web/WebPopupMenuImpl.cpp

DEFINITIONS
