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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef nsResizerFrame_h___
#define nsResizerFrame_h___
#include "mozilla/Attributes.h"
#include "mozilla/EventForwards.h"
#include "nsTitleBarFrame.h"
class nsIBaseWindow;
class nsResizerFrame : public nsTitleBarFrame
{
protected:
struct Direction {
int8_t mHorizontal;
int8_t mVertical;
};
public:
NS_DECL_FRAMEARENA_HELPERS
friend nsIFrame* NS_NewResizerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
explicit nsResizerFrame(nsStyleContext* aContext);
virtual nsresult HandleEvent(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) override;
virtual void MouseClicked(mozilla::WidgetMouseEvent* aEvent) override;
protected:
nsIContent* GetContentToResize(nsIPresShell* aPresShell, nsIBaseWindow** aWindow);
Direction GetDirection();
/**
* Adjust the window position and size in a direction according to the mouse
* movement and the resizer direction. The minimum and maximum size is used
* to constrain the size.
*
* @param aPos left or top position
* @param aSize width or height
* @param aMinSize minimum width or height
* @param aMacSize maximum width or height
* @param aMovement the amount the mouse was moved
* @param aResizerDirection resizer direction returned by GetDirection
*/
static void AdjustDimensions(int32_t* aPos, int32_t* aSize,
int32_t aMinSize, int32_t aMaxSize,
int32_t aMovement, int8_t aResizerDirection);
struct SizeInfo {
nsString width, height;
};
static void SizeInfoDtorFunc(void *aObject, nsIAtom *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);
protected:
LayoutDeviceIntRect mMouseDownRect;
LayoutDeviceIntPoint mMouseDownPoint;
}; // class nsResizerFrame
#endif /* nsResizerFrame_h___ */
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