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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: */
/* 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 */
#ifndef mozilla_dom_XULResizerElement_h
#define mozilla_dom_XULResizerElement_h
#include "nsXULElement.h"
#include "Units.h"
namespace mozilla::dom {
nsXULElement* NS_NewXULResizerElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
class XULResizerElement final : public nsXULElement {
explicit XULResizerElement(already_AddRefed<dom::NodeInfo>&& aNodeInfo)
: nsXULElement(std::move(aNodeInfo)) {}
nsresult PostHandleEvent(EventChainPostVisitor&) override;
virtual ~XULResizerElement() = default;
JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) final;
void PostHandleEventInternal(EventChainPostVisitor&);
struct Direction {
int8_t mHorizontal;
int8_t mVertical;
Direction GetDirection();
nsIContent* GetContentToResize() const;
// The current size of the content to resize (if available).
Maybe<nsSize> GetCurrentSize() const;
struct SizeInfo {
nsCString width, height;
static void SizeInfoDtorFunc(void* aObject, nsAtom* aPropertyName,
void* aPropertyValue, void* aData);
static void ResizeContent(nsIContent* aContent, const Direction& aDirection,
const SizeInfo& aSizeInfo,
SizeInfo* aOriginalSizeInfo);
static void MaybePersistOriginalSize(nsIContent* aContent,
const SizeInfo& aSizeInfo);
static void RestoreOriginalSize(nsIContent* aContent);
nsSize mMouseDownSize;
LayoutDeviceIntPoint mMouseDownPoint;
bool mTrackingMouseMove = false;
} // namespace mozilla::dom
#endif // XULResizerElement_h