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/*
* Copyright (C) 2010 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 "web/ExternalPopupMenu.h"
#include "core/frame/FrameView.h"
#include "core/frame/LocalFrame.h"
#include "platform/PopupMenuClient.h"
#include "platform/geometry/FloatQuad.h"
#include "platform/geometry/IntPoint.h"
#include "platform/text/TextDirection.h"
#include "public/platform/WebVector.h"
#include "public/web/WebExternalPopupMenu.h"
#include "public/web/WebMenuItemInfo.h"
#include "public/web/WebPopupMenuInfo.h"
#include "public/web/WebViewClient.h"
#include "web/WebViewImpl.h"
using namespace WebCore;
namespace blink {
ExternalPopupMenu::ExternalPopupMenu(LocalFrame& frame, PopupMenuClient* popupMenuClient, WebViewImpl& webView)
: m_popupMenuClient(popupMenuClient)
, m_frameView(frame.view())
, m_webView(webView)
, m_dispatchEventTimer(this, &ExternalPopupMenu::dispatchEvent)
, m_webExternalPopupMenu(0)
{
}
ExternalPopupMenu::~ExternalPopupMenu()
{
}
void ExternalPopupMenu::show(const FloatQuad& controlPosition, const IntSize&, int index)
{
IntRect rect(controlPosition.enclosingBoundingBox());
// WebCore reuses the PopupMenu of an element.
// For simplicity, we do recreate the actual external popup everytime.
if (m_webExternalPopupMenu) {
m_webExternalPopupMenu->close();
m_webExternalPopupMenu = 0;
}
WebPopupMenuInfo info;
getPopupMenuInfo(&info);
if (info.items.isEmpty())
return;
m_webExternalPopupMenu = m_webView.client()->createExternalPopupMenu(info, this);
if (m_webExternalPopupMenu) {
m_webExternalPopupMenu->show(m_frameView->contentsToWindow(rect));
#if OS(MACOSX)
const WebInputEvent* currentEvent = WebViewImpl::currentInputEvent();
if (currentEvent && currentEvent->type == WebInputEvent::MouseDown) {
m_syntheticEvent = adoptPtr(new WebMouseEvent);
*m_syntheticEvent = *static_cast<const WebMouseEvent*>(currentEvent);
m_syntheticEvent->type = WebInputEvent::MouseUp;
m_dispatchEventTimer.startOneShot(0, FROM_HERE);
// FIXME: show() is asynchronous. If preparing a popup is slow and
// a user released the mouse button before showing the popup,
// mouseup and click events are correctly dispatched. Dispatching
// the synthetic mouseup event is redundant in this case.
}
#endif
} else {
// The client might refuse to create a popup (when there is already one pending to be shown for example).
didCancel();
}
}
void ExternalPopupMenu::dispatchEvent(Timer<ExternalPopupMenu>*)
{
m_webView.handleInputEvent(*m_syntheticEvent);
m_syntheticEvent.clear();
}
void ExternalPopupMenu::hide()
{
if (m_popupMenuClient)
m_popupMenuClient->popupDidHide();
if (!m_webExternalPopupMenu)
return;
m_webExternalPopupMenu->close();
m_webExternalPopupMenu = 0;
}
void ExternalPopupMenu::updateFromElement()
{
}
void ExternalPopupMenu::disconnectClient()
{
hide();
m_popupMenuClient = 0;
}
void ExternalPopupMenu::didChangeSelection(int index)
{
if (m_popupMenuClient)
m_popupMenuClient->selectionChanged(index);
}
void ExternalPopupMenu::didAcceptIndex(int index)
{
// Calling methods on the PopupMenuClient might lead to this object being
// derefed. This ensures it does not get deleted while we are running this
// method.
RefPtr<ExternalPopupMenu> guard(this);
if (m_popupMenuClient) {
m_popupMenuClient->popupDidHide();
m_popupMenuClient->valueChanged(index);
}
m_webExternalPopupMenu = 0;
}
void ExternalPopupMenu::didAcceptIndices(const WebVector<int>& indices)
{
if (!m_popupMenuClient) {
m_webExternalPopupMenu = 0;
return;
}
// Calling methods on the PopupMenuClient might lead to this object being
// derefed. This ensures it does not get deleted while we are running this
// method.
RefPtr<ExternalPopupMenu> protect(this);
if (!indices.size())
m_popupMenuClient->valueChanged(-1, true);
else {
for (size_t i = 0; i < indices.size(); ++i)
m_popupMenuClient->listBoxSelectItem(indices[i], (i > 0), false, (i == indices.size() - 1));
}
// The call to valueChanged above might have lead to a call to
// disconnectClient, so we might not have a PopupMenuClient anymore.
if (m_popupMenuClient)
m_popupMenuClient->popupDidHide();
m_webExternalPopupMenu = 0;
}
void ExternalPopupMenu::didCancel()
{
// See comment in didAcceptIndex on why we need this.
RefPtr<ExternalPopupMenu> guard(this);
if (m_popupMenuClient)
m_popupMenuClient->popupDidHide();
m_webExternalPopupMenu = 0;
}
void ExternalPopupMenu::getPopupMenuInfo(WebPopupMenuInfo* info)
{
int itemCount = m_popupMenuClient->listSize();
WebVector<WebMenuItemInfo> items(static_cast<size_t>(itemCount));
for (int i = 0; i < itemCount; ++i) {
WebMenuItemInfo& popupItem = items[i];
popupItem.label = m_popupMenuClient->itemText(i);
popupItem.toolTip = m_popupMenuClient->itemToolTip(i);
if (m_popupMenuClient->itemIsSeparator(i))
popupItem.type = WebMenuItemInfo::Separator;
else if (m_popupMenuClient->itemIsLabel(i))
popupItem.type = WebMenuItemInfo::Group;
else
popupItem.type = WebMenuItemInfo::Option;
popupItem.enabled = m_popupMenuClient->itemIsEnabled(i);
popupItem.checked = m_popupMenuClient->itemIsSelected(i);
PopupMenuStyle style = m_popupMenuClient->itemStyle(i);
if (style.textDirection() == WebCore::RTL)
popupItem.textDirection = WebTextDirectionRightToLeft;
else
popupItem.textDirection = WebTextDirectionLeftToRight;
popupItem.hasTextDirectionOverride = style.hasTextDirectionOverride();
}
info->itemHeight = m_popupMenuClient->menuStyle().font().fontMetrics().height();
info->itemFontSize = static_cast<int>(m_popupMenuClient->menuStyle().font().fontDescription().computedSize());
info->selectedIndex = m_popupMenuClient->selectedIndex();
info->rightAligned = m_popupMenuClient->menuStyle().textDirection() == WebCore::RTL;
info->allowMultipleSelection = m_popupMenuClient->multiple();
info->items.swap(items);
}
}
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