layout/xul/nsResizerFrame.h

branch
TOR_BUG_9701
changeset 10
ac0c01689b40
equal deleted inserted replaced
-1:000000000000 0:1a2dca63fe6d
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 #ifndef nsResizerFrame_h___
6 #define nsResizerFrame_h___
7
8 #include "mozilla/Attributes.h"
9 #include "mozilla/EventForwards.h"
10 #include "nsTitleBarFrame.h"
11
12 class nsIBaseWindow;
13 class nsMenuPopupFrame;
14
15 class nsResizerFrame : public nsTitleBarFrame
16 {
17 protected:
18 struct Direction {
19 int8_t mHorizontal;
20 int8_t mVertical;
21 };
22
23 public:
24 NS_DECL_FRAMEARENA_HELPERS
25
26 friend nsIFrame* NS_NewResizerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
27
28 nsResizerFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
29
30 virtual nsresult HandleEvent(nsPresContext* aPresContext,
31 mozilla::WidgetGUIEvent* aEvent,
32 nsEventStatus* aEventStatus) MOZ_OVERRIDE;
33
34 virtual void MouseClicked(nsPresContext* aPresContext,
35 mozilla::WidgetMouseEvent* aEvent) MOZ_OVERRIDE;
36
37 protected:
38 nsIContent* GetContentToResize(nsIPresShell* aPresShell, nsIBaseWindow** aWindow);
39
40 Direction GetDirection();
41
42 /**
43 * Adjust the window position and size in a direction according to the mouse
44 * movement and the resizer direction. The minimum and maximum size is used
45 * to constrain the size.
46 *
47 * @param aPos left or top position
48 * @param aSize width or height
49 * @param aMinSize minimum width or height
50 * @param aMacSize maximum width or height
51 * @param aMovement the amount the mouse was moved
52 * @param aResizerDirection resizer direction returned by GetDirection
53 */
54 static void AdjustDimensions(int32_t* aPos, int32_t* aSize,
55 int32_t aMinSize, int32_t aMaxSize,
56 int32_t aMovement, int8_t aResizerDirection);
57
58 struct SizeInfo {
59 nsString width, height;
60 };
61 static void SizeInfoDtorFunc(void *aObject, nsIAtom *aPropertyName,
62 void *aPropertyValue, void *aData);
63 static void ResizeContent(nsIContent* aContent, const Direction& aDirection,
64 const SizeInfo& aSizeInfo, SizeInfo* aOriginalSizeInfo);
65 static void MaybePersistOriginalSize(nsIContent* aContent, const SizeInfo& aSizeInfo);
66 static void RestoreOriginalSize(nsIContent* aContent);
67
68 protected:
69 nsIntRect mMouseDownRect;
70 nsIntPoint mMouseDownPoint;
71 }; // class nsResizerFrame
72
73 #endif /* nsResizerFrame_h___ */

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