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
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
|
/* 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/. */
/*
* Inline methods that belong in nsStyleStruct.h, except that they
* require more headers.
*/
#ifndef nsStyleStructInlines_h_
#define nsStyleStructInlines_h_
#include "nsIFrame.h"
#include "nsStyleStruct.h"
#include "nsIContent.h" // for GetParent()
#include "nsTextFrame.h" // for nsTextFrame::ShouldSuppressLineBreak
inline void
nsStyleImage::EnsureCachedBIData() const
{
if (!mCachedBIData) {
const_cast<nsStyleImage*>(this)->mCachedBIData =
mozilla::MakeUnique<CachedBorderImageData>();
}
}
inline void
nsStyleImage::SetSubImage(uint8_t aIndex, imgIContainer* aSubImage) const
{
EnsureCachedBIData();
mCachedBIData->SetSubImage(aIndex, aSubImage);
}
inline imgIContainer*
nsStyleImage::GetSubImage(uint8_t aIndex) const
{
return (mCachedBIData) ? mCachedBIData->GetSubImage(aIndex) : nullptr;
}
bool
nsStyleText::HasTextShadow() const
{
return mTextShadow;
}
nsCSSShadowArray*
nsStyleText::GetTextShadow() const
{
return mTextShadow;
}
bool
nsStyleText::NewlineIsSignificant(const nsTextFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return NewlineIsSignificantStyle() &&
!aContextFrame->ShouldSuppressLineBreak() &&
!aContextFrame->StyleContext()->IsTextCombined();
}
bool
nsStyleText::WhiteSpaceCanWrap(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return WhiteSpaceCanWrapStyle() && !aContextFrame->IsSVGText() &&
!aContextFrame->StyleContext()->IsTextCombined();
}
bool
nsStyleText::WordCanWrap(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return WordCanWrapStyle() && !aContextFrame->IsSVGText();
}
bool
nsStyleDisplay::IsBlockInside(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText()) {
return aContextFrame->GetType() == nsGkAtoms::blockFrame;
}
return IsBlockInsideStyle();
}
bool
nsStyleDisplay::IsBlockOutside(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText()) {
return aContextFrame->GetType() == nsGkAtoms::blockFrame;
}
return IsBlockOutsideStyle();
}
bool
nsStyleDisplay::IsInlineOutside(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText()) {
return aContextFrame->GetType() != nsGkAtoms::blockFrame;
}
return IsInlineOutsideStyle();
}
bool
nsStyleDisplay::IsOriginalDisplayInlineOutside(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText()) {
return aContextFrame->GetType() != nsGkAtoms::blockFrame;
}
return IsOriginalDisplayInlineOutsideStyle();
}
mozilla::StyleDisplay
nsStyleDisplay::GetDisplay(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText() && mDisplay != mozilla::StyleDisplay::None) {
return aContextFrame->GetType() == nsGkAtoms::blockFrame ?
mozilla::StyleDisplay::Block : mozilla::StyleDisplay::Inline;
}
return mDisplay;
}
bool
nsStyleDisplay::IsFloating(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return IsFloatingStyle() && !aContextFrame->IsSVGText();
}
// If you change this function, also change the corresponding block in
// nsCSSFrameConstructor::ConstructFrameFromItemInternal that references
// this function in comments.
bool
nsStyleDisplay::HasTransform(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return HasTransformStyle() && aContextFrame->IsFrameOfType(nsIFrame::eSupportsCSSTransforms);
}
template<class StyleContextLike>
bool
nsStyleDisplay::HasFixedPosContainingBlockStyleInternal(
StyleContextLike* aStyleContext) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_FIXPOS_CB set on them.
NS_ASSERTION(aStyleContext->StyleDisplay() == this,
"unexpected aStyleContext");
return IsContainPaint() ||
HasPerspectiveStyle() ||
(mWillChangeBitField & NS_STYLE_WILL_CHANGE_FIXPOS_CB) ||
aStyleContext->StyleEffects()->HasFilters();
}
template<class StyleContextLike>
bool
nsStyleDisplay::IsFixedPosContainingBlockForAppropriateFrame(
StyleContextLike* aStyleContext) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_FIXPOS_CB set on them.
return HasFixedPosContainingBlockStyleInternal(aStyleContext) ||
HasTransformStyle();
}
bool
nsStyleDisplay::IsFixedPosContainingBlock(const nsIFrame* aContextFrame) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_FIXPOS_CB set on them.
if (!HasFixedPosContainingBlockStyleInternal(aContextFrame->StyleContext()) &&
!HasTransform(aContextFrame)) {
return false;
}
return !aContextFrame->IsSVGText();
}
template<class StyleContextLike>
bool
nsStyleDisplay::HasAbsPosContainingBlockStyleInternal(
StyleContextLike* aStyleContext) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_ABSPOS_CB set on them.
NS_ASSERTION(aStyleContext->StyleDisplay() == this,
"unexpected aStyleContext");
return IsAbsolutelyPositionedStyle() ||
IsRelativelyPositionedStyle() ||
(mWillChangeBitField & NS_STYLE_WILL_CHANGE_ABSPOS_CB);
}
template<class StyleContextLike>
bool
nsStyleDisplay::IsAbsPosContainingBlockForAppropriateFrame(StyleContextLike* aStyleContext) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_ABSPOS_CB set on them.
return HasAbsPosContainingBlockStyleInternal(aStyleContext) ||
IsFixedPosContainingBlockForAppropriateFrame(aStyleContext);
}
bool
nsStyleDisplay::IsAbsPosContainingBlock(const nsIFrame* aContextFrame) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_ABSPOS_CB set on them.
nsStyleContext* sc = aContextFrame->StyleContext();
if (!HasAbsPosContainingBlockStyleInternal(sc) &&
!HasFixedPosContainingBlockStyleInternal(sc) &&
!HasTransform(aContextFrame)) {
return false;
}
return !aContextFrame->IsSVGText();
}
bool
nsStyleDisplay::IsRelativelyPositioned(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return IsRelativelyPositionedStyle() && !aContextFrame->IsSVGText();
}
bool
nsStyleDisplay::IsAbsolutelyPositioned(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return IsAbsolutelyPositionedStyle() && !aContextFrame->IsSVGText();
}
uint8_t
nsStyleUserInterface::GetEffectivePointerEvents(nsIFrame* aFrame) const
{
if (aFrame->GetContent() && !aFrame->GetContent()->GetParent()) {
// The root element has a cluster of frames associated with it
// (root scroll frame, canvas frame, the actual primary frame). Make
// those take their pointer-events value from the root element's primary
// frame.
nsIFrame* f = aFrame->GetContent()->GetPrimaryFrame();
if (f) {
return f->StyleUserInterface()->mPointerEvents;
}
}
return mPointerEvents;
}
bool
nsStyleBackground::HasLocalBackground() const
{
NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, mImage) {
const nsStyleImageLayers::Layer& layer = mImage.mLayers[i];
if (!layer.mImage.IsEmpty() &&
layer.mAttachment == NS_STYLE_IMAGELAYER_ATTACHMENT_LOCAL) {
return true;
}
}
return false;
}
#endif /* !defined(nsStyleStructInlines_h_) */
|
