Remove mouse events from Sky

sky/engine/core/events/MouseEvent.cpp

-/*
- * Copyright (C) 2001 Peter Kelly (pmk@post.com)
- * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
- * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
- * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "sky/engine/config.h"
-#include "sky/engine/core/events/MouseEvent.h"
-
-#include "sky/engine/core/dom/Element.h"
-#include "sky/engine/core/events/EventDispatcher.h"
-#include "sky/engine/platform/PlatformMouseEvent.h"
-
-namespace blink {
-
-MouseEventInit::MouseEventInit()
-    : screenX(0)
-    , screenY(0)
-    , clientX(0)
-    , clientY(0)
-    , ctrlKey(false)
-    , altKey(false)
-    , shiftKey(false)
-    , metaKey(false)
-    , button(0)
-    , relatedTarget(nullptr)
-{
-}
-
-PassRefPtr<MouseEvent> MouseEvent::create(const AtomicString& type, const MouseEventInit& initializer)
-{
-    return adoptRef(new MouseEvent(type, initializer));
-}
-
-PassRefPtr<MouseEvent> MouseEvent::create(const AtomicString& eventType, PassRefPtr<AbstractView> view, const PlatformMouseEvent& event, int detail, PassRefPtr<Node> relatedTarget)
-{
-    ASSERT(event.type() == PlatformEvent::MouseMoved || event.button() != NoButton);
-
-    bool isMouseEnterOrLeave = eventType == EventTypeNames::mouseenter || eventType == EventTypeNames::mouseleave;
-    bool isCancelable = !isMouseEnterOrLeave;
-    bool isBubbling = !isMouseEnterOrLeave;
-
-    return MouseEvent::create(
-        eventType, isBubbling, isCancelable, view,
-        detail, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(),
-        event.movementDelta().x(), event.movementDelta().y(),
-        event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.button(),
-        relatedTarget, false, event.syntheticEventType());
-}
-
-PassRefPtr<MouseEvent> MouseEvent::create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<AbstractView> view,
-    int detail, int screenX, int screenY, int pageX, int pageY,
-    int movementX, int movementY,
-    bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button,
-    PassRefPtr<EventTarget> relatedTarget, bool isSimulated, PlatformMouseEvent::SyntheticEventType syntheticEventType)
-{
-    return adoptRef(new MouseEvent(type, canBubble, cancelable, view,
-        detail, screenX, screenY, pageX, pageY,
-        movementX, movementY,
-        ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget, isSimulated, syntheticEventType));
-}
-
-MouseEvent::MouseEvent()
-    : m_button(0)
-    , m_buttonDown(false)
-{
-}
-
-MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cancelable, PassRefPtr<AbstractView> view,
-    int detail, int screenX, int screenY, int pageX, int pageY,
-    int movementX, int movementY,
-    bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
-    unsigned short button, PassRefPtr<EventTarget> relatedTarget,
-    bool isSimulated, PlatformMouseEvent::SyntheticEventType syntheticEventType)
-    : MouseRelatedEvent(eventType, canBubble, cancelable, view, detail, IntPoint(screenX, screenY),
-                        IntPoint(pageX, pageY),
-                        IntPoint(movementX, movementY),
-                        ctrlKey, altKey, shiftKey, metaKey, isSimulated)
-    , m_button(button == (unsigned short)-1 ? 0 : button)
-    , m_buttonDown(button != (unsigned short)-1)
-    , m_relatedTarget(relatedTarget)
-    , m_syntheticEventType(syntheticEventType)
-{
-}
-
-MouseEvent::MouseEvent(const AtomicString& eventType, const MouseEventInit& initializer)
-    : MouseRelatedEvent(eventType, initializer.bubbles, initializer.cancelable, initializer.view, initializer.detail, IntPoint(initializer.screenX, initializer.screenY),
-        IntPoint(0 /* pageX */, 0 /* pageY */),
-        IntPoint(0 /* movementX */, 0 /* movementY */),
-        initializer.ctrlKey, initializer.altKey, initializer.shiftKey, initializer.metaKey, false /* isSimulated */)
-    , m_button(initializer.button == (unsigned short)-1 ? 0 : initializer.button)
-    , m_buttonDown(initializer.button != (unsigned short)-1)
-    , m_relatedTarget(initializer.relatedTarget)
-{
-    initCoordinates(IntPoint(initializer.clientX, initializer.clientY));
-}
-
-MouseEvent::~MouseEvent()
-{
-}
-
-void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<AbstractView> view,
-                                int detail, int screenX, int screenY, int clientX, int clientY,
-                                bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
-                                unsigned short button, PassRefPtr<EventTarget> relatedTarget)
-{
-    if (dispatched())
-        return;
-
-    initUIEvent(type, canBubble, cancelable, view, detail);
-
-    m_screenLocation = IntPoint(screenX, screenY);
-    m_ctrlKey = ctrlKey;
-    m_altKey = altKey;
-    m_shiftKey = shiftKey;
-    m_metaKey = metaKey;
-    m_button = button == (unsigned short)-1 ? 0 : button;
-    m_buttonDown = button != (unsigned short)-1;
-    m_relatedTarget = relatedTarget;
-
-    initCoordinates(IntPoint(clientX, clientY));
-
-    // FIXME: m_isSimulated is not set to false here.
-}
-
-const AtomicString& MouseEvent::interfaceName() const
-{
-    return EventNames::MouseEvent;
-}
-
-bool MouseEvent::isMouseEvent() const
-{
-    return true;
-}
-
-bool MouseEvent::isDragEvent() const
-{
-    const AtomicString& t = type();
-    return t == EventTypeNames::dragenter || t == EventTypeNames::dragover || t == EventTypeNames::dragleave || t == EventTypeNames::drop
-               || t == EventTypeNames::dragstart|| t == EventTypeNames::drag || t == EventTypeNames::dragend;
-}
-
-int MouseEvent::which() const
-{
-    // For the DOM, the return values for left, middle and right mouse buttons are 0, 1, 2, respectively.
-    // For the Netscape "which" property, the return values for left, middle and right mouse buttons are 1, 2, 3, respectively.
-    // So we must add 1.
-    if (!m_buttonDown)
-        return 0;
-    return m_button + 1;
-}
-
-Node* MouseEvent::toElement() const
-{
-    // MSIE extension - "the object toward which the user is moving the mouse pointer"
-    if (type() == EventTypeNames::mouseout || type() == EventTypeNames::mouseleave)
-        return relatedTarget() ? relatedTarget()->toNode() : 0;
-
-    return target() ? target()->toNode() : 0;
-}
-
-Node* MouseEvent::fromElement() const
-{
-    // MSIE extension - "object from which activation or the mouse pointer is exiting during the event" (huh?)
-    if (type() != EventTypeNames::mouseout && type() != EventTypeNames::mouseleave)
-        return relatedTarget() ? relatedTarget()->toNode() : 0;
-
-    return target() ? target()->toNode() : 0;
-}
-
-PassRefPtr<SimulatedMouseEvent> SimulatedMouseEvent::create(const AtomicString& eventType, PassRefPtr<AbstractView> view, PassRefPtr<Event> underlyingEvent)
-{
-    return adoptRef(new SimulatedMouseEvent(eventType, view, underlyingEvent));
-}
-
-SimulatedMouseEvent::~SimulatedMouseEvent()
-{
-}
-
-SimulatedMouseEvent::SimulatedMouseEvent(const AtomicString& eventType, PassRefPtr<AbstractView> view, PassRefPtr<Event> underlyingEvent)
-    : MouseEvent(eventType, true, true, view, 0, 0, 0, 0, 0, 0, 0, false, false, false, false, 0,
-        nullptr, true, PlatformMouseEvent::RealOrIndistinguishable)
-{
-    if (UIEventWithKeyState* keyStateEvent = findEventWithKeyState(underlyingEvent.get())) {
-        m_ctrlKey = keyStateEvent->ctrlKey();
-        m_altKey = keyStateEvent->altKey();
-        m_shiftKey = keyStateEvent->shiftKey();
-        m_metaKey = keyStateEvent->metaKey();
-    }
-    setUnderlyingEvent(underlyingEvent);
-
-    if (this->underlyingEvent() && this->underlyingEvent()->isMouseEvent()) {
-        MouseEvent* mouseEvent = toMouseEvent(this->underlyingEvent());
-        m_screenLocation = mouseEvent->screenLocation();
-        initCoordinates(mouseEvent->clientLocation());
-    }
-}
-
-PassRefPtr<MouseEventDispatchMediator> MouseEventDispatchMediator::create(PassRefPtr<MouseEvent> mouseEvent, MouseEventType mouseEventType)
-{
-    return adoptRef(new MouseEventDispatchMediator(mouseEvent, mouseEventType));
-}
-
-MouseEventDispatchMediator::MouseEventDispatchMediator(PassRefPtr<MouseEvent> mouseEvent, MouseEventType mouseEventType)
-    : EventDispatchMediator(mouseEvent), m_mouseEventType(mouseEventType)
-{
-}
-
-MouseEvent* MouseEventDispatchMediator::event() const
-{
-    return toMouseEvent(EventDispatchMediator::event());
-}
-
-bool MouseEventDispatchMediator::dispatchEvent(EventDispatcher* dispatcher) const
-{
-    if (isSyntheticMouseEvent()) {
-        event()->eventPath().adjustForRelatedTarget(dispatcher->node(), event()->relatedTarget());
-        return dispatcher->dispatch();
-    }
-
-    if (event()->type().isEmpty())
-        return true; // Shouldn't happen.
-
-    ASSERT(!event()->target() || event()->target() != event()->relatedTarget());
-
-    EventTarget* relatedTarget = event()->relatedTarget();
-    event()->eventPath().adjustForRelatedTarget(dispatcher->node(), relatedTarget);
-
-    dispatcher->dispatch();
-    bool swallowEvent = event()->defaultHandled() || event()->defaultPrevented();
-
-    if (event()->type() != EventTypeNames::click || event()->detail() != 2)
-        return !swallowEvent;
-
-    // Special case: If it's a double click event, we also send the dblclick event. This is not part
-    // of the DOM specs, but is used for compatibility with the ondblclick="" attribute. This is treated
-    // as a separate event in other DOM-compliant browsers like Firefox, and so we do the same.
-    RefPtr<MouseEvent> doubleClickEvent = MouseEvent::create();
-    doubleClickEvent->initMouseEvent(EventTypeNames::dblclick, event()->bubbles(), event()->cancelable(), event()->view(),
-                                     event()->detail(), event()->screenX(), event()->screenY(), event()->clientX(), event()->clientY(),
-                                     event()->ctrlKey(), event()->altKey(), event()->shiftKey(), event()->metaKey(),
-                                     event()->button(), relatedTarget);
-    if (event()->defaultHandled())
-        doubleClickEvent->setDefaultHandled();
-    EventDispatcher::dispatchEvent(dispatcher->node(), MouseEventDispatchMediator::create(doubleClickEvent));
-    if (doubleClickEvent->defaultHandled() || doubleClickEvent->defaultPrevented())
-        return false;
-    return !swallowEvent;
-}
-
-} // namespace blink