gecko-dev/dom/events/DragEvent.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
2012-05-21 15:12:37 +04:00
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/DragEvent.h"
#include "mozilla/MouseEvents.h"
#include "nsContentUtils.h"
#include "prtime.h"
namespace mozilla {
namespace dom {
DragEvent::DragEvent(EventTarget* aOwner,
nsPresContext* aPresContext,
WidgetDragEvent* aEvent)
: MouseEvent(aOwner, aPresContext,
aEvent ? aEvent :
new WidgetDragEvent(false, eVoidEvent, nullptr))
{
if (aEvent) {
mEventIsInternal = false;
}
else {
mEventIsInternal = true;
mEvent->time = PR_Now();
mEvent->refPoint.x = mEvent->refPoint.y = 0;
mEvent->AsMouseEvent()->inputSource = nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
}
}
NS_IMPL_ADDREF_INHERITED(DragEvent, MouseEvent)
NS_IMPL_RELEASE_INHERITED(DragEvent, MouseEvent)
NS_INTERFACE_MAP_BEGIN(DragEvent)
NS_INTERFACE_MAP_ENTRY(nsIDOMDragEvent)
NS_INTERFACE_MAP_END_INHERITING(MouseEvent)
void
DragEvent::InitDragEvent(const nsAString& aType,
bool aCanBubble,
bool aCancelable,
nsGlobalWindow* aView,
int32_t aDetail,
int32_t aScreenX,
int32_t aScreenY,
int32_t aClientX,
int32_t aClientY,
bool aCtrlKey,
bool aAltKey,
bool aShiftKey,
bool aMetaKey,
uint16_t aButton,
EventTarget* aRelatedTarget,
DataTransfer* aDataTransfer)
{
MouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable,
aView, aDetail, aScreenX, aScreenY,
aClientX, aClientY, aCtrlKey, aAltKey,
aShiftKey, aMetaKey, aButton, aRelatedTarget);
if (mEventIsInternal && mEvent) {
mEvent->AsDragEvent()->dataTransfer = aDataTransfer;
}
}
NS_IMETHODIMP
DragEvent::GetDataTransfer(nsIDOMDataTransfer** aDataTransfer)
{
NS_IF_ADDREF(*aDataTransfer = GetDataTransfer());
return NS_OK;
}
DataTransfer*
DragEvent::GetDataTransfer()
{
// the dataTransfer field of the event caches the DataTransfer associated
// with the drag. It is initialized when an attempt is made to retrieve it
// rather that when the event is created to avoid duplicating the data when
// no listener ever uses it.
if (!mEvent || mEvent->mClass != eDragEventClass) {
NS_WARNING("Tried to get dataTransfer from non-drag event!");
return nullptr;
}
WidgetDragEvent* dragEvent = mEvent->AsDragEvent();
// for synthetic events, just use the supplied data transfer object even if null
if (!mEventIsInternal) {
nsresult rv = nsContentUtils::SetDataTransferInEvent(dragEvent);
NS_ENSURE_SUCCESS(rv, nullptr);
}
return dragEvent->dataTransfer;
}
// static
already_AddRefed<DragEvent>
DragEvent::Constructor(const GlobalObject& aGlobal,
const nsAString& aType,
const DragEventInit& aParam,
ErrorResult& aRv)
{
nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi --HG-- rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 08:24:48 +03:00
RefPtr<DragEvent> e = new DragEvent(t, nullptr, nullptr);
bool trusted = e->Init(t);
e->InitDragEvent(aType, aParam.mBubbles, aParam.mCancelable,
aParam.mView, aParam.mDetail, aParam.mScreenX,
aParam.mScreenY, aParam.mClientX, aParam.mClientY,
aParam.mCtrlKey, aParam.mAltKey, aParam.mShiftKey,
aParam.mMetaKey, aParam.mButton, aParam.mRelatedTarget,
aParam.mDataTransfer);
e->InitializeExtraMouseEventDictionaryMembers(aParam);
e->SetTrusted(trusted);
return e.forget();
}
} // namespace dom
} // namespace mozilla
using namespace mozilla;
using namespace mozilla::dom;
already_AddRefed<DragEvent>
NS_NewDOMDragEvent(EventTarget* aOwner,
nsPresContext* aPresContext,
WidgetDragEvent* aEvent)
{
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi --HG-- rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 08:24:48 +03:00
RefPtr<DragEvent> event =
new DragEvent(aOwner, aPresContext, aEvent);
return event.forget();
}