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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/* -*- 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 MOZILLA_DOMRECT_H_
#define MOZILLA_DOMRECT_H_
#include "nsIDOMClientRect.h"
#include "nsIDOMClientRectList.h"
#include "nsTArray.h"
#include "nsCOMPtr.h"
#include "nsWrapperCache.h"
#include "nsCycleCollectionParticipant.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/ErrorResult.h"
#include <algorithm>
struct nsRect;
namespace mozilla {
namespace dom {
class DOMRectReadOnly : public nsISupports
, public nsWrapperCache
{
protected:
virtual ~DOMRectReadOnly() {}
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMRectReadOnly)
explicit DOMRectReadOnly(nsISupports* aParent)
: mParent(aParent)
{
}
nsISupports* GetParentObject() const
{
MOZ_ASSERT(mParent);
return mParent;
}
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
virtual double X() const = 0;
virtual double Y() const = 0;
virtual double Width() const = 0;
virtual double Height() const = 0;
double Left() const
{
double x = X(), w = Width();
return std::min(x, x + w);
}
double Top() const
{
double y = Y(), h = Height();
return std::min(y, y + h);
}
double Right() const
{
double x = X(), w = Width();
return std::max(x, x + w);
}
double Bottom() const
{
double y = Y(), h = Height();
return std::max(y, y + h);
}
protected:
nsCOMPtr<nsISupports> mParent;
};
class DOMRect final : public DOMRectReadOnly
, public nsIDOMClientRect
{
public:
explicit DOMRect(nsISupports* aParent, double aX = 0, double aY = 0,
double aWidth = 0, double aHeight = 0)
: DOMRectReadOnly(aParent)
, mX(aX)
, mY(aY)
, mWidth(aWidth)
, mHeight(aHeight)
{
}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIDOMCLIENTRECT
static already_AddRefed<DOMRect>
Constructor(const GlobalObject& aGlobal, ErrorResult& aRV);
static already_AddRefed<DOMRect>
Constructor(const GlobalObject& aGlobal, double aX, double aY,
double aWidth, double aHeight, ErrorResult& aRV);
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
void SetRect(float aX, float aY, float aWidth, float aHeight) {
mX = aX; mY = aY; mWidth = aWidth; mHeight = aHeight;
}
void SetLayoutRect(const nsRect& aLayoutRect);
virtual double X() const override
{
return mX;
}
virtual double Y() const override
{
return mY;
}
virtual double Width() const override
{
return mWidth;
}
virtual double Height() const override
{
return mHeight;
}
void SetX(double aX)
{
mX = aX;
}
void SetY(double aY)
{
mY = aY;
}
void SetWidth(double aWidth)
{
mWidth = aWidth;
}
void SetHeight(double aHeight)
{
mHeight = aHeight;
}
protected:
double mX, mY, mWidth, mHeight;
private:
~DOMRect() {};
};
class DOMRectList final : public nsIDOMClientRectList,
public nsWrapperCache
{
~DOMRectList() {}
public:
explicit DOMRectList(nsISupports *aParent) : mParent(aParent)
{
}
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMRectList)
NS_DECL_NSIDOMCLIENTRECTLIST
virtual JSObject* WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override;
nsISupports* GetParentObject()
{
return mParent;
}
void Append(DOMRect* aElement) { mArray.AppendElement(aElement); }
static DOMRectList* FromSupports(nsISupports* aSupports)
{
#ifdef DEBUG
{
nsCOMPtr<nsIDOMClientRectList> list_qi = do_QueryInterface(aSupports);
// If this assertion fires the QI implementation for the object in
// question doesn't use the nsIDOMClientRectList pointer as the nsISupports
// pointer. That must be fixed, or we'll crash...
NS_ASSERTION(list_qi == static_cast<nsIDOMClientRectList*>(aSupports),
"Uh, fix QI!");
}
#endif
return static_cast<DOMRectList*>(aSupports);
}
uint32_t Length()
{
return mArray.Length();
}
DOMRect* Item(uint32_t aIndex)
{
return mArray.SafeElementAt(aIndex);
}
DOMRect* IndexedGetter(uint32_t aIndex, bool& aFound)
{
aFound = aIndex < mArray.Length();
if (!aFound) {
return nullptr;
}
return mArray[aIndex];
}
protected:
nsTArray<RefPtr<DOMRect> > mArray;
nsCOMPtr<nsISupports> mParent;
};
} // namespace dom
} // namespace mozilla
#endif /*MOZILLA_DOMRECT_H_*/
|
