mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 21:55:31 +00:00
537 lines
14 KiB
C++
537 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/MouseEvent.h"
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#include "mozilla/MouseEvents.h"
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#include "nsContentUtils.h"
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#include "nsIContent.h"
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#include "prtime.h"
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namespace mozilla {
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namespace dom {
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MouseEvent::MouseEvent(EventTarget* aOwner,
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nsPresContext* aPresContext,
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WidgetMouseEventBase* aEvent)
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: UIEvent(aOwner, aPresContext,
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aEvent ? aEvent :
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new WidgetMouseEvent(false, eVoidEvent, nullptr,
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WidgetMouseEvent::eReal))
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{
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// There's no way to make this class' ctor allocate an WidgetMouseScrollEvent.
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// It's not that important, though, since a scroll event is not a real
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// DOM event.
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WidgetMouseEvent* mouseEvent = mEvent->AsMouseEvent();
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if (aEvent) {
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mEventIsInternal = false;
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}
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else {
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mEventIsInternal = true;
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mEvent->mTime = PR_Now();
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mEvent->mRefPoint = LayoutDeviceIntPoint(0, 0);
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mouseEvent->inputSource = nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
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}
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if (mouseEvent) {
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MOZ_ASSERT(mouseEvent->mReason != WidgetMouseEvent::eSynthesized,
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"Don't dispatch DOM events from synthesized mouse events");
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mDetail = mouseEvent->mClickCount;
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}
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}
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NS_IMPL_ADDREF_INHERITED(MouseEvent, UIEvent)
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NS_IMPL_RELEASE_INHERITED(MouseEvent, UIEvent)
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NS_INTERFACE_MAP_BEGIN(MouseEvent)
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NS_INTERFACE_MAP_ENTRY(nsIDOMMouseEvent)
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NS_INTERFACE_MAP_END_INHERITING(UIEvent)
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void
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MouseEvent::InitMouseEvent(const nsAString& aType,
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bool aCanBubble,
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bool aCancelable,
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nsGlobalWindow* aView,
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int32_t aDetail,
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int32_t aScreenX,
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int32_t aScreenY,
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int32_t aClientX,
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int32_t aClientY,
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bool aCtrlKey,
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bool aAltKey,
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bool aShiftKey,
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bool aMetaKey,
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uint16_t aButton,
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EventTarget* aRelatedTarget)
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{
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UIEvent::InitUIEvent(aType, aCanBubble, aCancelable, aView, aDetail);
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switch(mEvent->mClass) {
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case eMouseEventClass:
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case eMouseScrollEventClass:
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case eWheelEventClass:
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case eDragEventClass:
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case ePointerEventClass:
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case eSimpleGestureEventClass: {
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WidgetMouseEventBase* mouseEventBase = mEvent->AsMouseEventBase();
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mouseEventBase->relatedTarget = aRelatedTarget;
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mouseEventBase->button = aButton;
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mouseEventBase->InitBasicModifiers(aCtrlKey, aAltKey, aShiftKey, aMetaKey);
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mClientPoint.x = aClientX;
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mClientPoint.y = aClientY;
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mouseEventBase->mRefPoint.x = aScreenX;
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mouseEventBase->mRefPoint.y = aScreenY;
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WidgetMouseEvent* mouseEvent = mEvent->AsMouseEvent();
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if (mouseEvent) {
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mouseEvent->mClickCount = aDetail;
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}
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break;
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}
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default:
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break;
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}
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}
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NS_IMETHODIMP
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MouseEvent::InitMouseEvent(const nsAString& aType,
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bool aCanBubble,
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bool aCancelable,
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mozIDOMWindow* aView,
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int32_t aDetail,
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int32_t aScreenX,
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int32_t aScreenY,
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int32_t aClientX,
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int32_t aClientY,
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bool aCtrlKey,
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bool aAltKey,
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bool aShiftKey,
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bool aMetaKey,
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uint16_t aButton,
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nsIDOMEventTarget* aRelatedTarget)
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{
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MouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable,
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nsGlobalWindow::Cast(aView), aDetail,
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aScreenX, aScreenY,
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aClientX, aClientY,
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aCtrlKey, aAltKey, aShiftKey,
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aMetaKey, aButton,
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static_cast<EventTarget *>(aRelatedTarget));
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return NS_OK;
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}
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void
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MouseEvent::InitMouseEvent(const nsAString& aType,
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bool aCanBubble,
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bool aCancelable,
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nsGlobalWindow* aView,
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int32_t aDetail,
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int32_t aScreenX,
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int32_t aScreenY,
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int32_t aClientX,
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int32_t aClientY,
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int16_t aButton,
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EventTarget* aRelatedTarget,
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const nsAString& aModifiersList)
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{
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Modifiers modifiers = ComputeModifierState(aModifiersList);
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InitMouseEvent(aType, aCanBubble, aCancelable, aView, aDetail,
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aScreenX, aScreenY, aClientX, aClientY,
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(modifiers & MODIFIER_CONTROL) != 0,
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(modifiers & MODIFIER_ALT) != 0,
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(modifiers & MODIFIER_SHIFT) != 0,
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(modifiers & MODIFIER_META) != 0,
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aButton, aRelatedTarget);
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switch(mEvent->mClass) {
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case eMouseEventClass:
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case eMouseScrollEventClass:
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case eWheelEventClass:
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case eDragEventClass:
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case ePointerEventClass:
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case eSimpleGestureEventClass:
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mEvent->AsInputEvent()->mModifiers = modifiers;
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return;
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default:
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MOZ_CRASH("There is no space to store the modifiers");
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}
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}
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void
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MouseEvent::InitializeExtraMouseEventDictionaryMembers(const MouseEventInit& aParam)
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{
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InitModifiers(aParam);
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mEvent->AsMouseEventBase()->buttons = aParam.mButtons;
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mMovementPoint.x = aParam.mMovementX;
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mMovementPoint.y = aParam.mMovementY;
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}
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already_AddRefed<MouseEvent>
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MouseEvent::Constructor(const GlobalObject& aGlobal,
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const nsAString& aType,
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const MouseEventInit& aParam,
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ErrorResult& aRv)
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{
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nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
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RefPtr<MouseEvent> e = new MouseEvent(t, nullptr, nullptr);
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bool trusted = e->Init(t);
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e->InitMouseEvent(aType, aParam.mBubbles, aParam.mCancelable,
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aParam.mView, aParam.mDetail, aParam.mScreenX,
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aParam.mScreenY, aParam.mClientX, aParam.mClientY,
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aParam.mCtrlKey, aParam.mAltKey, aParam.mShiftKey,
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aParam.mMetaKey, aParam.mButton, aParam.mRelatedTarget);
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e->InitializeExtraMouseEventDictionaryMembers(aParam);
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e->SetTrusted(trusted);
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e->SetComposed(aParam.mComposed);
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return e.forget();
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}
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void
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MouseEvent::InitNSMouseEvent(const nsAString& aType,
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bool aCanBubble,
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bool aCancelable,
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nsGlobalWindow* aView,
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int32_t aDetail,
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int32_t aScreenX,
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int32_t aScreenY,
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int32_t aClientX,
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int32_t aClientY,
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bool aCtrlKey,
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bool aAltKey,
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bool aShiftKey,
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bool aMetaKey,
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uint16_t aButton,
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EventTarget* aRelatedTarget,
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float aPressure,
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uint16_t aInputSource)
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{
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MouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable,
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aView, aDetail, aScreenX, aScreenY,
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aClientX, aClientY,
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aCtrlKey, aAltKey, aShiftKey,
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aMetaKey, aButton, aRelatedTarget);
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WidgetMouseEventBase* mouseEventBase = mEvent->AsMouseEventBase();
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mouseEventBase->pressure = aPressure;
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mouseEventBase->inputSource = aInputSource;
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}
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NS_IMETHODIMP
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MouseEvent::GetButton(int16_t* aButton)
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{
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NS_ENSURE_ARG_POINTER(aButton);
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*aButton = Button();
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return NS_OK;
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}
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int16_t
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MouseEvent::Button()
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{
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switch(mEvent->mClass) {
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case eMouseEventClass:
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case eMouseScrollEventClass:
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case eWheelEventClass:
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case eDragEventClass:
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case ePointerEventClass:
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case eSimpleGestureEventClass:
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return mEvent->AsMouseEventBase()->button;
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default:
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NS_WARNING("Tried to get mouse button for non-mouse event!");
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return WidgetMouseEvent::eLeftButton;
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}
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}
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NS_IMETHODIMP
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MouseEvent::GetButtons(uint16_t* aButtons)
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{
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NS_ENSURE_ARG_POINTER(aButtons);
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*aButtons = Buttons();
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return NS_OK;
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}
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uint16_t
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MouseEvent::Buttons()
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{
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switch(mEvent->mClass) {
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case eMouseEventClass:
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case eMouseScrollEventClass:
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case eWheelEventClass:
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case eDragEventClass:
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case ePointerEventClass:
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case eSimpleGestureEventClass:
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return mEvent->AsMouseEventBase()->buttons;
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default:
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MOZ_CRASH("Tried to get mouse buttons for non-mouse event!");
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}
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}
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NS_IMETHODIMP
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MouseEvent::GetRelatedTarget(nsIDOMEventTarget** aRelatedTarget)
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{
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NS_ENSURE_ARG_POINTER(aRelatedTarget);
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*aRelatedTarget = GetRelatedTarget().take();
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return NS_OK;
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}
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already_AddRefed<EventTarget>
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MouseEvent::GetRelatedTarget()
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{
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nsCOMPtr<EventTarget> relatedTarget;
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switch(mEvent->mClass) {
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case eMouseEventClass:
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case eMouseScrollEventClass:
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case eWheelEventClass:
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case eDragEventClass:
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case ePointerEventClass:
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case eSimpleGestureEventClass:
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relatedTarget =
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do_QueryInterface(mEvent->AsMouseEventBase()->relatedTarget);
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break;
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default:
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break;
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}
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if (relatedTarget) {
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nsCOMPtr<nsIContent> content = do_QueryInterface(relatedTarget);
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nsCOMPtr<nsIContent> currentTarget =
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do_QueryInterface(mEvent->mCurrentTarget);
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nsIContent* shadowRelatedTarget = GetShadowRelatedTarget(currentTarget, content);
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if (shadowRelatedTarget) {
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relatedTarget = shadowRelatedTarget;
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}
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if (content && content->ChromeOnlyAccess() &&
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!nsContentUtils::CanAccessNativeAnon()) {
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relatedTarget = do_QueryInterface(content->FindFirstNonChromeOnlyAccessContent());
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}
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if (relatedTarget) {
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relatedTarget = relatedTarget->GetTargetForDOMEvent();
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}
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return relatedTarget.forget();
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}
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return nullptr;
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}
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void
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MouseEvent::GetRegion(nsAString& aRegion)
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{
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SetDOMStringToNull(aRegion);
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WidgetMouseEventBase* mouseEventBase = mEvent->AsMouseEventBase();
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if (mouseEventBase) {
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aRegion = mouseEventBase->region;
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}
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}
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NS_IMETHODIMP
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MouseEvent::GetMozMovementX(int32_t* aMovementX)
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{
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NS_ENSURE_ARG_POINTER(aMovementX);
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*aMovementX = MovementX();
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return NS_OK;
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}
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NS_IMETHODIMP
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MouseEvent::GetMozMovementY(int32_t* aMovementY)
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{
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NS_ENSURE_ARG_POINTER(aMovementY);
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*aMovementY = MovementY();
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return NS_OK;
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}
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NS_IMETHODIMP
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MouseEvent::GetScreenX(int32_t* aScreenX)
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{
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NS_ENSURE_ARG_POINTER(aScreenX);
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*aScreenX = ScreenX();
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return NS_OK;
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}
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int32_t
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MouseEvent::ScreenX()
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{
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return Event::GetScreenCoords(mPresContext, mEvent, mEvent->mRefPoint).x;
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}
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NS_IMETHODIMP
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MouseEvent::GetScreenY(int32_t* aScreenY)
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{
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NS_ENSURE_ARG_POINTER(aScreenY);
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*aScreenY = ScreenY();
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return NS_OK;
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}
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int32_t
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MouseEvent::ScreenY()
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{
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return Event::GetScreenCoords(mPresContext, mEvent, mEvent->mRefPoint).y;
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}
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NS_IMETHODIMP
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MouseEvent::GetClientX(int32_t* aClientX)
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{
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NS_ENSURE_ARG_POINTER(aClientX);
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*aClientX = ClientX();
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return NS_OK;
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}
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int32_t
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MouseEvent::ClientX()
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{
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return Event::GetClientCoords(mPresContext, mEvent, mEvent->mRefPoint,
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mClientPoint).x;
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}
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NS_IMETHODIMP
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MouseEvent::GetClientY(int32_t* aClientY)
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{
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NS_ENSURE_ARG_POINTER(aClientY);
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*aClientY = ClientY();
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return NS_OK;
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}
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int32_t
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MouseEvent::ClientY()
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{
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return Event::GetClientCoords(mPresContext, mEvent, mEvent->mRefPoint,
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mClientPoint).y;
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}
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int32_t
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MouseEvent::OffsetX()
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{
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return Event::GetOffsetCoords(mPresContext, mEvent, mEvent->mRefPoint,
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mClientPoint).x;
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}
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int32_t
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MouseEvent::OffsetY()
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{
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return Event::GetOffsetCoords(mPresContext, mEvent, mEvent->mRefPoint,
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mClientPoint).y;
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}
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bool
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MouseEvent::AltKey()
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{
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return mEvent->AsInputEvent()->IsAlt();
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}
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NS_IMETHODIMP
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MouseEvent::GetAltKey(bool* aIsDown)
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{
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NS_ENSURE_ARG_POINTER(aIsDown);
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*aIsDown = AltKey();
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return NS_OK;
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}
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bool
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MouseEvent::CtrlKey()
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{
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return mEvent->AsInputEvent()->IsControl();
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}
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NS_IMETHODIMP
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MouseEvent::GetCtrlKey(bool* aIsDown)
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{
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NS_ENSURE_ARG_POINTER(aIsDown);
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*aIsDown = CtrlKey();
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return NS_OK;
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}
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bool
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MouseEvent::ShiftKey()
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{
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return mEvent->AsInputEvent()->IsShift();
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}
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NS_IMETHODIMP
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MouseEvent::GetShiftKey(bool* aIsDown)
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{
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NS_ENSURE_ARG_POINTER(aIsDown);
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*aIsDown = ShiftKey();
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return NS_OK;
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}
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bool
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MouseEvent::MetaKey()
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{
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return mEvent->AsInputEvent()->IsMeta();
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}
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NS_IMETHODIMP
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MouseEvent::GetMetaKey(bool* aIsDown)
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{
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NS_ENSURE_ARG_POINTER(aIsDown);
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*aIsDown = MetaKey();
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return NS_OK;
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}
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NS_IMETHODIMP
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MouseEvent::GetModifierState(const nsAString& aKey,
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bool* aState)
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{
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NS_ENSURE_ARG_POINTER(aState);
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*aState = GetModifierState(aKey);
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return NS_OK;
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}
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float
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MouseEvent::MozPressure() const
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{
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return mEvent->AsMouseEventBase()->pressure;
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}
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NS_IMETHODIMP
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MouseEvent::GetMozPressure(float* aPressure)
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{
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NS_ENSURE_ARG_POINTER(aPressure);
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*aPressure = MozPressure();
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return NS_OK;
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}
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bool
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MouseEvent::HitCluster() const
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{
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return mEvent->AsMouseEventBase()->hitCluster;
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}
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uint16_t
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MouseEvent::MozInputSource() const
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{
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return mEvent->AsMouseEventBase()->inputSource;
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}
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NS_IMETHODIMP
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MouseEvent::GetMozInputSource(uint16_t* aInputSource)
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{
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NS_ENSURE_ARG_POINTER(aInputSource);
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*aInputSource = MozInputSource();
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return NS_OK;
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}
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} // namespace dom
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} // namespace mozilla
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using namespace mozilla;
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using namespace mozilla::dom;
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already_AddRefed<MouseEvent>
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NS_NewDOMMouseEvent(EventTarget* aOwner,
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nsPresContext* aPresContext,
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WidgetMouseEvent* aEvent)
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{
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RefPtr<MouseEvent> it = new MouseEvent(aOwner, aPresContext, aEvent);
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return it.forget();
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}
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