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/*
* Copyright (C) 2012 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/PageWidgetDelegate.h"
#include "core/frame/FrameView.h"
#include "core/frame/LocalFrame.h"
#include "core/page/AutoscrollController.h"
#include "core/page/EventHandler.h"
#include "core/rendering/RenderView.h"
#include "core/rendering/compositing/RenderLayerCompositor.h"
#include "platform/graphics/GraphicsContext.h"
#include "public/web/WebInputEvent.h"
#include "web/PageOverlayList.h"
#include "web/WebInputEventConversion.h"
#include "wtf/CurrentTime.h"
using namespace WebCore;
namespace blink {
static inline FrameView* mainFrameView(Page* page)
{
if (!page)
return 0;
// FIXME: Can we remove this check?
if (!page->mainFrame())
return 0;
if (!page->mainFrame()->isLocalFrame())
return 0;
return page->deprecatedLocalMainFrame()->view();
}
void PageWidgetDelegate::animate(Page* page, double monotonicFrameBeginTime)
{
RefPtr<FrameView> view = mainFrameView(page);
if (!view)
return;
page->autoscrollController().animate(monotonicFrameBeginTime);
page->animator().serviceScriptedAnimations(monotonicFrameBeginTime);
}
void PageWidgetDelegate::layout(Page* page)
{
if (!page || !page->mainFrame())
return;
page->animator().updateLayoutAndStyleForPainting();
}
void PageWidgetDelegate::paint(Page* page, PageOverlayList* overlays, WebCanvas* canvas, const WebRect& rect, CanvasBackground background)
{
if (rect.isEmpty())
return;
GraphicsContext gc(canvas);
gc.setCertainlyOpaque(background == Opaque);
gc.applyDeviceScaleFactor(page->deviceScaleFactor());
gc.setUseHighResMarkers(page->deviceScaleFactor() > 1.5f);
IntRect dirtyRect(rect);
gc.save(); // Needed to save the canvas, not the GraphicsContext.
FrameView* view = mainFrameView(page);
// FIXME: Can we remove the mainFrame()->document() check?
if (view && page->deprecatedLocalMainFrame()->document()) {
gc.clip(dirtyRect);
view->paint(&gc, dirtyRect);
if (overlays)
overlays->paintWebFrame(gc);
} else {
gc.fillRect(dirtyRect, Color::white);
}
gc.restore();
}
bool PageWidgetDelegate::handleInputEvent(Page* page, PageWidgetEventHandler& handler, const WebInputEvent& event)
{
LocalFrame* frame = page && page->mainFrame()->isLocalFrame() ? page->deprecatedLocalMainFrame() : 0;
switch (event.type) {
// FIXME: WebKit seems to always return false on mouse events processing
// methods. For now we'll assume it has processed them (as we are only
// interested in whether keyboard events are processed).
case WebInputEvent::MouseMove:
if (!frame || !frame->view())
return true;
handler.handleMouseMove(*frame, *static_cast<const WebMouseEvent*>(&event));
return true;
case WebInputEvent::MouseLeave:
if (!frame || !frame->view())
return true;
handler.handleMouseLeave(*frame, *static_cast<const WebMouseEvent*>(&event));
return true;
case WebInputEvent::MouseDown:
if (!frame || !frame->view())
return true;
handler.handleMouseDown(*frame, *static_cast<const WebMouseEvent*>(&event));
return true;
case WebInputEvent::MouseUp:
if (!frame || !frame->view())
return true;
handler.handleMouseUp(*frame, *static_cast<const WebMouseEvent*>(&event));
return true;
case WebInputEvent::MouseWheel:
if (!frame || !frame->view())
return false;
return handler.handleMouseWheel(*frame, *static_cast<const WebMouseWheelEvent*>(&event));
case WebInputEvent::RawKeyDown:
case WebInputEvent::KeyDown:
case WebInputEvent::KeyUp:
return handler.handleKeyEvent(*static_cast<const WebKeyboardEvent*>(&event));
case WebInputEvent::Char:
return handler.handleCharEvent(*static_cast<const WebKeyboardEvent*>(&event));
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:
return handler.handleGestureEvent(*static_cast<const WebGestureEvent*>(&event));
case WebInputEvent::TouchStart:
case WebInputEvent::TouchMove:
case WebInputEvent::TouchEnd:
case WebInputEvent::TouchCancel:
if (!frame || !frame->view())
return false;
return handler.handleTouchEvent(*frame, *static_cast<const WebTouchEvent*>(&event));
case WebInputEvent::GesturePinchBegin:
case WebInputEvent::GesturePinchEnd:
case WebInputEvent::GesturePinchUpdate:
// FIXME: Once PlatformGestureEvent is updated to support pinch, this
// should call handleGestureEvent, just like it currently does for
// gesture scroll.
return false;
default:
return false;
}
}
// ----------------------------------------------------------------
// Default handlers for PageWidgetEventHandler
void PageWidgetEventHandler::handleMouseMove(LocalFrame& mainFrame, const WebMouseEvent& event)
{
mainFrame.eventHandler().handleMouseMoveEvent(PlatformMouseEventBuilder(mainFrame.view(), event));
}
void PageWidgetEventHandler::handleMouseLeave(LocalFrame& mainFrame, const WebMouseEvent& event)
{
mainFrame.eventHandler().handleMouseLeaveEvent(PlatformMouseEventBuilder(mainFrame.view(), event));
}
void PageWidgetEventHandler::handleMouseDown(LocalFrame& mainFrame, const WebMouseEvent& event)
{
mainFrame.eventHandler().handleMousePressEvent(PlatformMouseEventBuilder(mainFrame.view(), event));
}
void PageWidgetEventHandler::handleMouseUp(LocalFrame& mainFrame, const WebMouseEvent& event)
{
mainFrame.eventHandler().handleMouseReleaseEvent(PlatformMouseEventBuilder(mainFrame.view(), event));
}
bool PageWidgetEventHandler::handleMouseWheel(LocalFrame& mainFrame, const WebMouseWheelEvent& event)
{
return mainFrame.eventHandler().handleWheelEvent(PlatformWheelEventBuilder(mainFrame.view(), event));
}
bool PageWidgetEventHandler::handleTouchEvent(LocalFrame& mainFrame, const WebTouchEvent& event)
{
return mainFrame.eventHandler().handleTouchEvent(PlatformTouchEventBuilder(mainFrame.view(), event));
}
}
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