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