michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: #ifndef nsResizerFrame_h___
michael@0: #define nsResizerFrame_h___
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "mozilla/EventForwards.h"
michael@0: #include "nsTitleBarFrame.h"
michael@0: 
michael@0: class nsIBaseWindow;
michael@0: class nsMenuPopupFrame;
michael@0: 
michael@0: class nsResizerFrame : public nsTitleBarFrame 
michael@0: {
michael@0: protected:
michael@0:   struct Direction {
michael@0:     int8_t mHorizontal;
michael@0:     int8_t mVertical;
michael@0:   };
michael@0: 
michael@0: public:
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0:   friend nsIFrame* NS_NewResizerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);  
michael@0: 
michael@0:   nsResizerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
michael@0: 
michael@0:   virtual nsresult HandleEvent(nsPresContext* aPresContext,
michael@0:                                mozilla::WidgetGUIEvent* aEvent,
michael@0:                                nsEventStatus* aEventStatus) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void MouseClicked(nsPresContext* aPresContext,
michael@0:                             mozilla::WidgetMouseEvent* aEvent) MOZ_OVERRIDE;
michael@0: 
michael@0: protected:
michael@0:   nsIContent* GetContentToResize(nsIPresShell* aPresShell, nsIBaseWindow** aWindow);
michael@0: 
michael@0:   Direction GetDirection();
michael@0: 
michael@0:   /**
michael@0:    * Adjust the window position and size in a direction according to the mouse
michael@0:    * movement and the resizer direction. The minimum and maximum size is used
michael@0:    * to constrain the size.
michael@0:    *
michael@0:    * @param aPos left or top position
michael@0:    * @param aSize width or height
michael@0:    * @param aMinSize minimum width or height
michael@0:    * @param aMacSize maximum width or height
michael@0:    * @param aMovement the amount the mouse was moved
michael@0:    * @param aResizerDirection resizer direction returned by GetDirection
michael@0:    */
michael@0:   static void AdjustDimensions(int32_t* aPos, int32_t* aSize,
michael@0:                                int32_t aMinSize, int32_t aMaxSize,
michael@0:                                int32_t aMovement, int8_t aResizerDirection);
michael@0: 
michael@0:   struct SizeInfo {
michael@0:     nsString width, height;
michael@0:   };
michael@0:   static void SizeInfoDtorFunc(void *aObject, nsIAtom *aPropertyName,
michael@0:                                void *aPropertyValue, void *aData);
michael@0:   static void ResizeContent(nsIContent* aContent, const Direction& aDirection,
michael@0:                             const SizeInfo& aSizeInfo, SizeInfo* aOriginalSizeInfo);
michael@0:   static void MaybePersistOriginalSize(nsIContent* aContent, const SizeInfo& aSizeInfo);
michael@0:   static void RestoreOriginalSize(nsIContent* aContent);
michael@0: 
michael@0: protected:
michael@0: 	nsIntRect mMouseDownRect;
michael@0: 	nsIntPoint mMouseDownPoint;
michael@0: }; // class nsResizerFrame
michael@0: 
michael@0: #endif /* nsResizerFrame_h___ */