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
|
/* -*- 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/. */
/*
* 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
#include "mozilla/SVGUtils.h" // for SVGUtils::IsInSVGTextSubtree
bool nsStyleText::NewlineIsSignificant(const nsTextFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return NewlineIsSignificantStyle() &&
!aContextFrame->ShouldSuppressLineBreak() &&
!aContextFrame->Style()->IsTextCombined();
}
bool nsStyleText::WhiteSpaceCanWrap(const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return WhiteSpaceCanWrapStyle() &&
!mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame) &&
!aContextFrame->Style()->IsTextCombined();
}
bool nsStyleText::WordCanWrap(const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return WordCanWrapStyle() &&
!mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame);
}
bool nsStyleDisplay::IsBlockOutside(const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
if (mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame)) {
return aContextFrame->IsBlockFrame();
}
return IsBlockOutsideStyle();
}
bool nsStyleDisplay::IsInlineOutside(const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
if (mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame)) {
return !aContextFrame->IsBlockFrame();
}
return IsInlineOutsideStyle();
}
mozilla::StyleDisplay nsStyleDisplay::GetDisplay(
const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
if (mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame) &&
mDisplay != mozilla::StyleDisplay::None) {
return aContextFrame->IsBlockFrame() ? mozilla::StyleDisplay::Block
: mozilla::StyleDisplay::Inline;
}
return mDisplay;
}
bool nsStyleDisplay::IsFloating(const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
return IsFloatingStyle() &&
!mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame);
}
// 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);
}
bool nsStyleDisplay::HasPerspective(const nsIFrame* aContextFrame) const {
MOZ_ASSERT(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return HasPerspectiveStyle() &&
aContextFrame->IsFrameOfType(nsIFrame::eSupportsCSSTransforms);
}
bool nsStyleDisplay::IsFixedPosContainingBlockForNonSVGTextFrames(
const mozilla::ComputedStyle& aStyle) const {
// NOTE: Any CSS properties that influence the output of this function
// should have the FIXPOS_CB flag set on them.
NS_ASSERTION(aStyle.StyleDisplay() == this, "unexpected aStyle");
if (mWillChange.bits & mozilla::StyleWillChangeBits::FIXPOS_CB) {
return true;
}
return aStyle.StyleEffects()->HasFilters() ||
aStyle.StyleEffects()->HasBackdropFilters();
}
bool nsStyleDisplay::
IsFixedPosContainingBlockForContainLayoutAndPaintSupportingFrames() const {
return IsContainPaint() || IsContainLayout();
}
bool nsStyleDisplay::IsFixedPosContainingBlockForTransformSupportingFrames()
const {
// NOTE: Any CSS properties that influence the output of this function
// should have the FIXPOS_CB flag set on them.
return HasTransformStyle() || HasPerspectiveStyle();
}
bool nsStyleDisplay::IsFixedPosContainingBlock(
const nsIFrame* aContextFrame) const {
mozilla::ComputedStyle* style = aContextFrame->Style();
NS_ASSERTION(style->StyleDisplay() == this, "unexpected aContextFrame");
// NOTE: Any CSS properties that influence the output of this function
// should have the FIXPOS_CB flag set on them.
if (!IsFixedPosContainingBlockForNonSVGTextFrames(*style) &&
(!IsFixedPosContainingBlockForContainLayoutAndPaintSupportingFrames() ||
!aContextFrame->IsFrameOfType(
nsIFrame::eSupportsContainLayoutAndPaint)) &&
(!IsFixedPosContainingBlockForTransformSupportingFrames() ||
!aContextFrame->IsFrameOfType(nsIFrame::eSupportsCSSTransforms))) {
return false;
}
if (mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame)) {
return false;
}
MOZ_ASSERT(IsAbsPosContainingBlock(aContextFrame),
"Any fixed-pos CB should also be an abs-pos CB");
return true;
}
bool nsStyleDisplay::IsAbsPosContainingBlock(
const nsIFrame* aContextFrame) const {
mozilla::ComputedStyle* style = aContextFrame->Style();
NS_ASSERTION(style->StyleDisplay() == this, "unexpected aContextFrame");
if (!IsPositionedStyle() &&
!IsFixedPosContainingBlockForNonSVGTextFrames(*style) &&
(!IsFixedPosContainingBlockForContainLayoutAndPaintSupportingFrames() ||
!aContextFrame->IsFrameOfType(
nsIFrame::eSupportsContainLayoutAndPaint)) &&
(!IsFixedPosContainingBlockForTransformSupportingFrames() ||
!aContextFrame->IsFrameOfType(nsIFrame::eSupportsCSSTransforms))) {
return false;
}
return !mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame);
}
bool nsStyleDisplay::IsRelativelyPositioned(
const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
return IsRelativelyPositionedStyle() &&
!mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame);
}
bool nsStyleDisplay::IsStickyPositioned(const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
return IsStickyPositionedStyle() &&
!mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame);
}
bool nsStyleDisplay::IsAbsolutelyPositioned(
const nsIFrame* aContextFrame) const {
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
return IsAbsolutelyPositionedStyle() &&
!mozilla::SVGUtils::IsInSVGTextSubtree(aContextFrame);
}
mozilla::StylePointerEvents nsStyleUI::GetEffectivePointerEvents(
nsIFrame* aFrame) const {
if (aFrame->GetContent() && !aFrame->GetContent()->GetParent()) {
// The root frame is not allowed to have pointer-events: none, or else
// no frames could be hit test against and scrolling the viewport would
// not work.
return mozilla::StylePointerEvents::Auto;
}
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.IsNone() &&
layer.mAttachment == mozilla::StyleImageLayerAttachment::Local) {
return true;
}
}
return false;
}
#endif /* !defined(nsStyleStructInlines_h_) */
|
