1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* -*- 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 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;
namespace mozilla {
class PresShell;
} // namespace mozilla
class nsResizerFrame final : public nsTitleBarFrame {
protected:
typedef mozilla::LayoutDeviceIntPoint LayoutDeviceIntPoint;
typedef mozilla::LayoutDeviceIntRect LayoutDeviceIntRect;
struct Direction {
int8_t mHorizontal;
int8_t mVertical;
};
public:
NS_DECL_FRAMEARENA_HELPERS(nsResizerFrame)
friend nsIFrame* NS_NewResizerFrame(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
explicit nsResizerFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
virtual nsresult HandleEvent(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
virtual void MouseClicked(mozilla::WidgetMouseEvent* aEvent) override;
protected:
nsIContent* GetContentToResize(mozilla::PresShell* 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 {
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);
protected:
LayoutDeviceIntRect mMouseDownRect;
LayoutDeviceIntPoint mMouseDownPoint;
}; // class nsResizerFrame
#endif /* nsResizerFrame_h___ */
|
