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87c4a4863d
We use pointer events instead. R=esprehn@chromium.org Review URL: https://codereview.chromium.org/868133003
402 lines
16 KiB
C++
402 lines
16 KiB
C++
/*
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* Copyright (C) 2009 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/web/WebInputEventConversion.h"
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#include "sky/engine/core/events/GestureEvent.h"
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#include "sky/engine/core/events/KeyboardEvent.h"
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#include "sky/engine/core/frame/FrameHost.h"
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#include "sky/engine/core/frame/FrameView.h"
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#include "sky/engine/core/page/Page.h"
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#include "sky/engine/core/rendering/RenderObject.h"
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#include "sky/engine/platform/KeyboardCodes.h"
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#include "sky/engine/platform/Widget.h"
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namespace blink {
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static const double millisPerSecond = 1000.0;
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static float widgetInputEventsScaleFactor(const Widget* widget)
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{
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if (!widget)
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return 1;
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FrameView* rootView = toFrameView(widget->root());
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if (!rootView)
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return 1;
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return rootView->inputEventsScaleFactor();
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}
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static IntSize widgetInputEventsOffset(const Widget* widget)
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{
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if (!widget)
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return IntSize();
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FrameView* rootView = toFrameView(widget->root());
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if (!rootView)
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return IntSize();
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return rootView->inputEventsOffsetForEmulation();
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}
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// PlatformGestureEventBuilder --------------------------------------------------
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PlatformGestureEventBuilder::PlatformGestureEventBuilder(Widget* widget, const WebGestureEvent& e)
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{
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float scale = widgetInputEventsScaleFactor(widget);
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IntSize offset = widgetInputEventsOffset(widget);
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switch (e.type) {
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case WebInputEvent::GestureScrollBegin:
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m_type = PlatformEvent::GestureScrollBegin;
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break;
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case WebInputEvent::GestureScrollEnd:
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m_type = PlatformEvent::GestureScrollEnd;
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break;
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case WebInputEvent::GestureFlingStart:
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m_type = PlatformEvent::GestureFlingStart;
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break;
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case WebInputEvent::GestureScrollUpdate:
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m_type = PlatformEvent::GestureScrollUpdate;
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m_data.m_scrollUpdate.m_deltaX = e.data.scrollUpdate.deltaX / scale;
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m_data.m_scrollUpdate.m_deltaY = e.data.scrollUpdate.deltaY / scale;
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m_data.m_scrollUpdate.m_velocityX = e.data.scrollUpdate.velocityX;
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m_data.m_scrollUpdate.m_velocityY = e.data.scrollUpdate.velocityY;
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break;
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case WebInputEvent::GestureScrollUpdateWithoutPropagation:
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m_type = PlatformEvent::GestureScrollUpdateWithoutPropagation;
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m_data.m_scrollUpdate.m_deltaX = e.data.scrollUpdate.deltaX / scale;
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m_data.m_scrollUpdate.m_deltaY = e.data.scrollUpdate.deltaY / scale;
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m_data.m_scrollUpdate.m_velocityX = e.data.scrollUpdate.velocityX;
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m_data.m_scrollUpdate.m_velocityY = e.data.scrollUpdate.velocityY;
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break;
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case WebInputEvent::GestureTap:
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m_type = PlatformEvent::GestureTap;
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m_area = expandedIntSize(FloatSize(e.data.tap.width / scale, e.data.tap.height / scale));
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m_data.m_tap.m_tapCount = e.data.tap.tapCount;
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break;
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case WebInputEvent::GestureTapUnconfirmed:
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m_type = PlatformEvent::GestureTapUnconfirmed;
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m_area = expandedIntSize(FloatSize(e.data.tap.width / scale, e.data.tap.height / scale));
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break;
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case WebInputEvent::GestureTapDown:
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m_type = PlatformEvent::GestureTapDown;
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m_area = expandedIntSize(FloatSize(e.data.tapDown.width / scale, e.data.tapDown.height / scale));
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break;
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case WebInputEvent::GestureShowPress:
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m_type = PlatformEvent::GestureShowPress;
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m_area = expandedIntSize(FloatSize(e.data.showPress.width / scale, e.data.showPress.height / scale));
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break;
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case WebInputEvent::GestureTapCancel:
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m_type = PlatformEvent::GestureTapDownCancel;
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break;
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case WebInputEvent::GestureDoubleTap:
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// DoubleTap gesture is now handled as PlatformEvent::GestureTap with tap_count = 2. So no
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// need to convert to a Platfrom DoubleTap gesture. But in WebViewImpl::handleGestureEvent
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// all WebGestureEvent are converted to PlatformGestureEvent, for completeness and not reach
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// the ASSERT_NOT_REACHED() at the end, convert the DoubleTap to a NoType.
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m_type = PlatformEvent::NoType;
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break;
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case WebInputEvent::GestureTwoFingerTap:
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m_type = PlatformEvent::GestureTwoFingerTap;
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m_area = expandedIntSize(FloatSize(e.data.twoFingerTap.firstFingerWidth / scale, e.data.twoFingerTap.firstFingerHeight / scale));
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break;
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case WebInputEvent::GestureLongPress:
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m_type = PlatformEvent::GestureLongPress;
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m_area = expandedIntSize(FloatSize(e.data.longPress.width / scale, e.data.longPress.height / scale));
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break;
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case WebInputEvent::GestureLongTap:
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m_type = PlatformEvent::GestureLongTap;
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m_area = expandedIntSize(FloatSize(e.data.longPress.width / scale, e.data.longPress.height / scale));
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break;
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case WebInputEvent::GesturePinchBegin:
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m_type = PlatformEvent::GesturePinchBegin;
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break;
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case WebInputEvent::GesturePinchEnd:
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m_type = PlatformEvent::GesturePinchEnd;
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break;
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case WebInputEvent::GesturePinchUpdate:
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m_type = PlatformEvent::GesturePinchUpdate;
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m_data.m_pinchUpdate.m_scale = e.data.pinchUpdate.scale;
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break;
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default:
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ASSERT_NOT_REACHED();
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}
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m_position = widget->convertFromContainingView(
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IntPoint((e.x - offset.width()) / scale, (e.y - offset.height()) / scale));
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m_globalPosition = IntPoint(e.globalX, e.globalY);
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m_timestamp = e.timeStampSeconds;
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m_modifiers = 0;
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if (e.modifiers & WebInputEvent::ShiftKey)
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m_modifiers |= PlatformEvent::ShiftKey;
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if (e.modifiers & WebInputEvent::ControlKey)
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m_modifiers |= PlatformEvent::CtrlKey;
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if (e.modifiers & WebInputEvent::AltKey)
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m_modifiers |= PlatformEvent::AltKey;
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if (e.modifiers & WebInputEvent::MetaKey)
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m_modifiers |= PlatformEvent::MetaKey;
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}
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// MakePlatformKeyboardEvent --------------------------------------------------
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inline PlatformEvent::Type toPlatformKeyboardEventType(WebInputEvent::Type type)
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{
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switch (type) {
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case WebInputEvent::KeyUp:
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return PlatformEvent::KeyUp;
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case WebInputEvent::KeyDown:
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return PlatformEvent::KeyDown;
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case WebInputEvent::RawKeyDown:
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return PlatformEvent::RawKeyDown;
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case WebInputEvent::Char:
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return PlatformEvent::Char;
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default:
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ASSERT_NOT_REACHED();
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}
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return PlatformEvent::KeyDown;
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}
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PlatformKeyboardEventBuilder::PlatformKeyboardEventBuilder(const WebKeyboardEvent& e)
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{
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m_type = toPlatformKeyboardEventType(e.type);
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m_text = String(e.text);
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m_unmodifiedText = String(e.unmodifiedText);
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m_keyIdentifier = String(e.keyIdentifier);
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m_autoRepeat = (e.modifiers & WebInputEvent::IsAutoRepeat);
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m_nativeVirtualKeyCode = e.nativeKeyCode;
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m_isKeypad = (e.modifiers & WebInputEvent::IsKeyPad);
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m_isSystemKey = e.isSystemKey;
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m_modifiers = 0;
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if (e.modifiers & WebInputEvent::ShiftKey)
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m_modifiers |= PlatformEvent::ShiftKey;
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if (e.modifiers & WebInputEvent::ControlKey)
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m_modifiers |= PlatformEvent::CtrlKey;
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if (e.modifiers & WebInputEvent::AltKey)
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m_modifiers |= PlatformEvent::AltKey;
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if (e.modifiers & WebInputEvent::MetaKey)
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m_modifiers |= PlatformEvent::MetaKey;
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// FIXME: PlatformKeyboardEvents expect a locational version of the keycode (e.g. VK_LSHIFT
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// instead of VK_SHIFT). This should be changed so the location/keycode are stored separately,
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// as in other places in the code.
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m_windowsVirtualKeyCode = e.windowsKeyCode;
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if (e.windowsKeyCode == VK_SHIFT) {
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if (e.modifiers & WebInputEvent::IsLeft)
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m_windowsVirtualKeyCode = VK_LSHIFT;
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else if (e.modifiers & WebInputEvent::IsRight)
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m_windowsVirtualKeyCode = VK_RSHIFT;
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} else if (e.windowsKeyCode == VK_CONTROL) {
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if (e.modifiers & WebInputEvent::IsLeft)
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m_windowsVirtualKeyCode = VK_LCONTROL;
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else if (e.modifiers & WebInputEvent::IsRight)
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m_windowsVirtualKeyCode = VK_RCONTROL;
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} else if (e.windowsKeyCode == VK_MENU) {
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if (e.modifiers & WebInputEvent::IsLeft)
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m_windowsVirtualKeyCode = VK_LMENU;
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else if (e.modifiers & WebInputEvent::IsRight)
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m_windowsVirtualKeyCode = VK_RMENU;
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}
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}
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void PlatformKeyboardEventBuilder::setKeyType(Type type)
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{
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// According to the behavior of Webkit in Windows platform,
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// we need to convert KeyDown to RawKeydown and Char events
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// See WebKit/WebKit/Win/WebView.cpp
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ASSERT(m_type == KeyDown);
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ASSERT(type == RawKeyDown || type == Char);
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m_type = type;
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if (type == RawKeyDown) {
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m_text = String();
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m_unmodifiedText = String();
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} else {
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m_keyIdentifier = String();
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m_windowsVirtualKeyCode = 0;
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}
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}
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// Please refer to bug http://b/issue?id=961192, which talks about Webkit
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// keyboard event handling changes. It also mentions the list of keys
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// which don't have associated character events.
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bool PlatformKeyboardEventBuilder::isCharacterKey() const
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{
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switch (windowsVirtualKeyCode()) {
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case VKEY_BACK:
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case VKEY_ESCAPE:
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return false;
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}
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return true;
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}
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static int getWebInputModifiers(const UIEventWithKeyState& event)
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{
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int modifiers = 0;
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if (event.ctrlKey())
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modifiers |= WebInputEvent::ControlKey;
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if (event.shiftKey())
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modifiers |= WebInputEvent::ShiftKey;
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if (event.altKey())
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modifiers |= WebInputEvent::AltKey;
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if (event.metaKey())
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modifiers |= WebInputEvent::MetaKey;
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return modifiers;
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}
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static FloatPoint convertAbsoluteLocationForRenderObjectFloat(const LayoutPoint& location, const RenderObject& renderObject)
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{
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return renderObject.absoluteToLocal(location, UseTransforms);
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}
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static IntPoint convertAbsoluteLocationForRenderObject(const LayoutPoint& location, const RenderObject& renderObject)
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{
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return roundedIntPoint(convertAbsoluteLocationForRenderObjectFloat(location, renderObject));
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}
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WebKeyboardEventBuilder::WebKeyboardEventBuilder(const KeyboardEvent& event)
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{
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if (event.type() == EventTypeNames::keydown)
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type = KeyDown;
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else if (event.type() == EventTypeNames::keyup)
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type = WebInputEvent::KeyUp;
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else if (event.type() == EventTypeNames::keypress)
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type = WebInputEvent::Char;
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else
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return; // Skip all other keyboard events.
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modifiers = getWebInputModifiers(event);
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if (event.location() == KeyboardEvent::DOM_KEY_LOCATION_NUMPAD)
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modifiers |= WebInputEvent::IsKeyPad;
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else if (event.location() == KeyboardEvent::DOM_KEY_LOCATION_LEFT)
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modifiers |= WebInputEvent::IsLeft;
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else if (event.location() == KeyboardEvent::DOM_KEY_LOCATION_RIGHT)
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modifiers |= WebInputEvent::IsRight;
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timeStampSeconds = event.timeStamp() / millisPerSecond;
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windowsKeyCode = event.keyCode();
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// The platform keyevent does not exist if the event was created using
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// initKeyboardEvent.
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if (!event.keyEvent())
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return;
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nativeKeyCode = event.keyEvent()->nativeVirtualKeyCode();
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unsigned numberOfCharacters = std::min(event.keyEvent()->text().length(), static_cast<unsigned>(textLengthCap));
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for (unsigned i = 0; i < numberOfCharacters; ++i) {
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text[i] = event.keyEvent()->text()[i];
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unmodifiedText[i] = event.keyEvent()->unmodifiedText()[i];
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}
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memcpy(keyIdentifier, event.keyIdentifier().ascii().data(), event.keyIdentifier().length());
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}
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WebInputEvent::Type toWebKeyboardEventType(PlatformEvent::Type type)
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{
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switch (type) {
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case PlatformEvent::KeyUp:
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return WebInputEvent::KeyUp;
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case PlatformEvent::KeyDown:
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return WebInputEvent::KeyDown;
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case PlatformEvent::RawKeyDown:
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return WebInputEvent::RawKeyDown;
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case PlatformEvent::Char:
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return WebInputEvent::Char;
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default:
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return WebInputEvent::Undefined;
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}
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}
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int toWebKeyboardEventModifiers(int modifiers)
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{
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int newModifiers = 0;
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if (modifiers & PlatformEvent::ShiftKey)
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newModifiers |= WebInputEvent::ShiftKey;
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if (modifiers & PlatformEvent::CtrlKey)
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newModifiers |= WebInputEvent::ControlKey;
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if (modifiers & PlatformEvent::AltKey)
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newModifiers |= WebInputEvent::AltKey;
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if (modifiers & PlatformEvent::MetaKey)
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newModifiers |= WebInputEvent::MetaKey;
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return newModifiers;
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}
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WebKeyboardEventBuilder::WebKeyboardEventBuilder(const PlatformKeyboardEvent& event)
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{
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type = toWebKeyboardEventType(event.type());
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modifiers = toWebKeyboardEventModifiers(event.modifiers());
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if (event.isAutoRepeat())
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modifiers |= WebInputEvent::IsAutoRepeat;
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if (event.isKeypad())
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modifiers |= WebInputEvent::IsKeyPad;
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isSystemKey = event.isSystemKey();
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nativeKeyCode = event.nativeVirtualKeyCode();
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windowsKeyCode = windowsKeyCodeWithoutLocation(event.windowsVirtualKeyCode());
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modifiers |= locationModifiersFromWindowsKeyCode(event.windowsVirtualKeyCode());
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event.text().copyTo(text, 0, textLengthCap);
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event.unmodifiedText().copyTo(unmodifiedText, 0, textLengthCap);
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memcpy(keyIdentifier, event.keyIdentifier().ascii().data(), std::min(static_cast<unsigned>(keyIdentifierLengthCap), event.keyIdentifier().length()));
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}
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WebGestureEventBuilder::WebGestureEventBuilder(const Widget* widget, const RenderObject* renderObject, const GestureEvent& event)
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{
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if (event.type() == EventTypeNames::gestureshowpress)
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type = GestureShowPress;
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else if (event.type() == EventTypeNames::gesturetapdown)
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type = GestureTapDown;
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else if (event.type() == EventTypeNames::gesturescrollstart)
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type = GestureScrollBegin;
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else if (event.type() == EventTypeNames::gesturescrollend)
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type = GestureScrollEnd;
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else if (event.type() == EventTypeNames::gesturescrollupdate) {
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type = GestureScrollUpdate;
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data.scrollUpdate.deltaX = event.deltaX();
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data.scrollUpdate.deltaY = event.deltaY();
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} else if (event.type() == EventTypeNames::gesturetap) {
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type = GestureTap;
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data.tap.tapCount = 1;
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}
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timeStampSeconds = event.timeStamp() / millisPerSecond;
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modifiers = getWebInputModifiers(event);
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globalX = event.screenX();
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globalY = event.screenY();
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IntPoint localPoint = convertAbsoluteLocationForRenderObject(event.absoluteLocation(), *renderObject);
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x = localPoint.x();
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y = localPoint.y();
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}
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} // namespace blink
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