flutter_flutter/sky/engine/core/events/GestureEvent.cpp
Hixie 87e83e552d Remove EventTarget, and subsequent fallout.
The primary goal of this change was to remove EventTarget from the
sky_engine C++ code. Since EventTarget is so core to the entire event
system that sky_engine was based on, this is a rather invasive change.
As such, it had some knock-on effects. I deleted some of the files
that were affected, and cauterised the remainder.

In many cases, a file would depend on another file that it didn't
include directly, but instead included indirectly via another file
that I deleted. When this happened, if the features that this broke
were obsolete, I sometimes just removed the features instead.

Specifically:
- removed EventTarget
- removed EventQueue, since without a target, what's a queue going to
  do?
- same with EventDispatch*
- removed ExecutionContext, since it had an EventQueue and nothing
  else it did was relevant to Sky anymore
- removed ActiveDOMObject, which was all about ExecutionContexts
- removed ContextLifecycleNotifier since it dependend on
  ExecutionContext and ActiveDOMObject
- removed the other Lifecycle classes for consistency, and replaced
  them with four booleans in the Document class
- removed some of the attributes that are no longer relevant from
  IDLExtendedAttributes (ConstructorCallWith and
  CallWith=ExecutionContext)
- removed the Document member on DOMDartState since we never set it to
  anything but null.
- removed BuiltinSky::InstallWindow since it relied on the Document
  member of DOMDartState
- removed EventHandler, EventListener, and mentions of those in
  various binding scripts
- removed NewEventHandler, since we're not using that either
- removed the following interfaces from the Sky Dart API:
  - EventTarget
  - EventListener (since without a target, there's no way to listen)
  - FocusEvent (since it's only member was an EventTarget)
  - HashChangeEvent (mostly by accident, but it's defunct anyway)
  - FontFace (it used ConstructorCallWith=ExecutionContext)
- changed the following interfaces of the Sky DART API:
  - MediaQueryList is no longer an EventTarget
  - Node is no longer an EventTarget
  - Document no longer has defaultView (depended on
    DOMDartState's document)
  - DocumentFragment, Element, Range, and Text no longer have a
    constructor (they all depended on DOMDartState's document, which
    is now gone)
  - Event lost its EventTarget members and path.
  - Window lost its WindowTimers partial interface (it used
    EventTarget and ExecutionContext a lot)
- removed numerous hacks in the bindings around features that are now
  gone, like addEventListener
- removed a bunch of console logging code, since that relied on
  ExecutionContext
- cauterised the wound in FontFace.cpp by removing constructors and
  methods that called now-removed features
- same with MediaQuery and friends
- same with some editor features and focus-related features
- same with Document
- removed DOMTimer classes since they use ExecutionContexts
2015-07-16 14:40:10 -07:00

106 lines
3.7 KiB
C++

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gen/sky/core/EventNames.h"
#include "gen/sky/core/EventTypeNames.h"
#include "sky/engine/core/dom/Element.h"
#include "sky/engine/core/events/GestureEvent.h"
#include "sky/engine/wtf/text/AtomicString.h"
namespace blink {
static AtomicString stringForType(WebInputEvent::Type type)
{
if (type == WebInputEvent::GestureScrollBegin)
return EventTypeNames::gesturescrollstart;
if (type == WebInputEvent::GestureScrollEnd)
return EventTypeNames::gesturescrollend;
if (type == WebInputEvent::GestureScrollUpdate)
return EventTypeNames::gesturescrollupdate;
if (type == WebInputEvent::GestureScrollUpdateWithoutPropagation)
return EventTypeNames::gesturescrollupdate;
if (type == WebInputEvent::GestureFlingStart)
return EventTypeNames::gestureflingstart;
if (type == WebInputEvent::GestureFlingCancel)
return EventTypeNames::gestureflingcancel;
if (type == WebInputEvent::GestureShowPress)
return EventTypeNames::gestureshowpress;
if (type == WebInputEvent::GestureTap)
return EventTypeNames::gesturetap;
if (type == WebInputEvent::GestureTapUnconfirmed)
return EventTypeNames::gesturetapunconfirmed;
if (type == WebInputEvent::GestureTapDown)
return EventTypeNames::gesturetapdown;
if (type == WebInputEvent::GestureTapCancel)
return EventTypeNames::gesturetapcancel;
if (type == WebInputEvent::GestureDoubleTap)
return EventTypeNames::gesturedoubletap;
if (type == WebInputEvent::GestureTwoFingerTap)
return EventTypeNames::gesturetwofingertap;
if (type == WebInputEvent::GestureLongPress)
return EventTypeNames::gesturelongpress;
if (type == WebInputEvent::GestureLongTap)
return EventTypeNames::gesturelongtap;
if (type == WebInputEvent::GesturePinchBegin)
return EventTypeNames::gesturepinchstart;
if (type == WebInputEvent::GesturePinchEnd)
return EventTypeNames::gesturepinchend;
if (type == WebInputEvent::GesturePinchUpdate)
return EventTypeNames::gesturepinchupdate;
ASSERT_NOT_REACHED();
return AtomicString();
}
GestureEvent::~GestureEvent()
{
}
const AtomicString& GestureEvent::interfaceName() const
{
return EventNames::GestureEvent;
}
GestureEvent::GestureEvent()
: GestureEvent(AtomicString(), GestureEventInit())
{
}
GestureEvent::GestureEvent(const WebGestureEvent& event)
: Event(stringForType(event.type), true, true)
, m_primaryPointer(event.primaryPointer)
, m_x(event.x)
, m_y(event.y)
, m_dx(0)
, m_dy(0)
, m_velocityX(0)
, m_velocityY(0)
{
m_timeStamp = event.timeStampMS;
if (event.type == WebInputEvent::GestureFlingStart) {
m_velocityX = event.data.flingStart.velocityX;
m_velocityY = event.data.flingStart.velocityY;
} else if (event.type == WebInputEvent::GestureScrollUpdate
|| event.type == WebInputEvent::GestureScrollUpdateWithoutPropagation) {
m_dx = event.data.scrollUpdate.deltaX;
m_dy = event.data.scrollUpdate.deltaY;
m_velocityX = event.data.scrollUpdate.velocityX;
m_velocityY = event.data.scrollUpdate.velocityY;
}
}
GestureEvent::GestureEvent(const AtomicString& type, const GestureEventInit& initializer)
: Event(type, initializer)
, m_primaryPointer(initializer.primaryPointer)
, m_x(initializer.x)
, m_y(initializer.y)
, m_dx(initializer.dx)
, m_dy(initializer.dy)
, m_velocityX(initializer.velocityX)
, m_velocityY(initializer.velocityY)
{
}
} // namespace blink