summaryrefslogtreecommitdiffstats
path: root/dom/events/DragEvent.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/events/DragEvent.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/events/DragEvent.cpp')
-rw-r--r--dom/events/DragEvent.cpp98
1 files changed, 98 insertions, 0 deletions
diff --git a/dom/events/DragEvent.cpp b/dom/events/DragEvent.cpp
new file mode 100644
index 0000000000..aa576e2f8e
--- /dev/null
+++ b/dom/events/DragEvent.cpp
@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/dom/MouseEventBinding.h"
+#include "mozilla/MouseEvents.h"
+#include "nsContentUtils.h"
+#include "prtime.h"
+
+namespace mozilla::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->mRefPoint = LayoutDeviceIntPoint(0, 0);
+ mEvent->AsMouseEvent()->mInputSource =
+ MouseEvent_Binding::MOZ_SOURCE_UNKNOWN;
+ }
+}
+
+void DragEvent::InitDragEvent(const nsAString& aType, bool aCanBubble,
+ bool aCancelable, nsGlobalWindowInner* 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) {
+ NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);
+
+ MouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable, aView, aDetail,
+ aScreenX, aScreenY, aClientX, aClientY, aCtrlKey,
+ aAltKey, aShiftKey, aMetaKey, aButton,
+ aRelatedTarget);
+ if (mEventIsInternal) {
+ mEvent->AsDragEvent()->mDataTransfer = aDataTransfer;
+ }
+}
+
+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->mDataTransfer;
+}
+
+// static
+already_AddRefed<DragEvent> DragEvent::Constructor(
+ const GlobalObject& aGlobal, const nsAString& aType,
+ const DragEventInit& aParam) {
+ nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
+ 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);
+ e->SetComposed(aParam.mComposed);
+ return e.forget();
+}
+
+} // namespace mozilla::dom
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+already_AddRefed<DragEvent> NS_NewDOMDragEvent(EventTarget* aOwner,
+ nsPresContext* aPresContext,
+ WidgetDragEvent* aEvent) {
+ RefPtr<DragEvent> event = new DragEvent(aOwner, aPresContext, aEvent);
+ return event.forget();
+}