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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set tw=80 expandtab softtabstop=2 ts=2 sw=2: */
/* 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/. */
#include "nsStyledElement.h"
#include "nsGkAtoms.h"
#include "nsAttrValue.h"
#include "nsAttrValueInlines.h"
#include "mozilla/dom/ElementInlines.h"
#include "mozilla/InternalMutationEvent.h"
#include "nsDOMCSSDeclaration.h"
#include "nsDOMCSSAttrDeclaration.h"
#include "nsServiceManagerUtils.h"
#include "nsIDocument.h"
#include "mozilla/css/StyleRule.h"
#include "nsCSSParser.h"
#include "mozilla/css/Loader.h"
#include "nsIDOMMutationEvent.h"
#include "nsXULElement.h"
#include "nsContentUtils.h"
#include "nsStyleUtil.h"
using namespace mozilla;
using namespace mozilla::dom;
//----------------------------------------------------------------------
// nsIContent methods
bool
nsStyledElementNotElementCSSInlineStyle::ParseAttribute(int32_t aNamespaceID,
nsIAtom* aAttribute,
const nsAString& aValue,
nsAttrValue& aResult)
{
if (aAttribute == nsGkAtoms::style && aNamespaceID == kNameSpaceID_None) {
SetMayHaveStyle();
ParseStyleAttribute(aValue, aResult, false);
return true;
}
return nsStyledElementBase::ParseAttribute(aNamespaceID, aAttribute, aValue,
aResult);
}
nsresult
nsStyledElementNotElementCSSInlineStyle::SetInlineStyleRule(css::StyleRule* aStyleRule,
const nsAString* aSerialized,
bool aNotify)
{
SetMayHaveStyle();
bool modification = false;
nsAttrValue oldValue;
bool hasListeners = aNotify &&
nsContentUtils::HasMutationListeners(this,
NS_EVENT_BITS_MUTATION_ATTRMODIFIED,
this);
// There's no point in comparing the stylerule pointers since we're always
// getting a new stylerule here. And we can't compare the stringvalues of
// the old and the new rules since both will point to the same declaration
// and thus will be the same.
if (hasListeners) {
// save the old attribute so we can set up the mutation event properly
// XXXbz if the old rule points to the same declaration as the new one,
// this is getting the new attr value, not the old one....
nsAutoString oldValueStr;
modification = GetAttr(kNameSpaceID_None, nsGkAtoms::style,
oldValueStr);
if (modification) {
oldValue.SetTo(oldValueStr);
}
}
else if (aNotify && IsInDoc()) {
modification = !!mAttrsAndChildren.GetAttr(nsGkAtoms::style);
}
nsAttrValue attrValue(aStyleRule, aSerialized);
// XXXbz do we ever end up with ADDITION here? I doubt it.
uint8_t modType = modification ?
static_cast<uint8_t>(nsIDOMMutationEvent::MODIFICATION) :
static_cast<uint8_t>(nsIDOMMutationEvent::ADDITION);
return SetAttrAndNotify(kNameSpaceID_None, nsGkAtoms::style, nullptr,
oldValue, attrValue, modType, hasListeners,
aNotify, kDontCallAfterSetAttr);
}
css::StyleRule*
nsStyledElementNotElementCSSInlineStyle::GetInlineStyleRule()
{
if (!MayHaveStyle()) {
return nullptr;
}
const nsAttrValue* attrVal = mAttrsAndChildren.GetAttr(nsGkAtoms::style);
if (attrVal && attrVal->Type() == nsAttrValue::eCSSStyleRule) {
return attrVal->GetCSSStyleRuleValue();
}
return nullptr;
}
// ---------------------------------------------------------------
// Others and helpers
nsICSSDeclaration*
nsStyledElementNotElementCSSInlineStyle::Style()
{
Element::nsDOMSlots *slots = DOMSlots();
if (!slots->mStyle) {
// Just in case...
ReparseStyleAttribute(true);
slots->mStyle = new nsDOMCSSAttributeDeclaration(this, false);
SetMayHaveStyle();
}
return slots->mStyle;
}
nsresult
nsStyledElementNotElementCSSInlineStyle::ReparseStyleAttribute(bool aForceInDataDoc)
{
if (!MayHaveStyle()) {
return NS_OK;
}
const nsAttrValue* oldVal = mAttrsAndChildren.GetAttr(nsGkAtoms::style);
if (oldVal && oldVal->Type() != nsAttrValue::eCSSStyleRule) {
nsAttrValue attrValue;
nsAutoString stringValue;
oldVal->ToString(stringValue);
ParseStyleAttribute(stringValue, attrValue, aForceInDataDoc);
// Don't bother going through SetInlineStyleRule, we don't want to fire off
// mutation events or document notifications anyway
nsresult rv = mAttrsAndChildren.SetAndTakeAttr(nsGkAtoms::style, attrValue);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
void
nsStyledElementNotElementCSSInlineStyle::ParseStyleAttribute(const nsAString& aValue,
nsAttrValue& aResult,
bool aForceInDataDoc)
{
nsIDocument* doc = OwnerDoc();
if (!nsStyleUtil::CSPAllowsInlineStyle(nullptr, NodePrincipal(),
doc->GetDocumentURI(), 0, aValue,
nullptr))
return;
if (aForceInDataDoc ||
!doc->IsLoadedAsData() ||
doc->IsStaticDocument()) {
bool isCSS = true; // assume CSS until proven otherwise
if (!IsInNativeAnonymousSubtree()) { // native anonymous content
// always assumes CSS
nsAutoString styleType;
doc->GetHeaderData(nsGkAtoms::headerContentStyleType, styleType);
if (!styleType.IsEmpty()) {
static const char textCssStr[] = "text/css";
isCSS = (styleType.EqualsIgnoreCase(textCssStr, sizeof(textCssStr) - 1));
}
}
if (isCSS && aResult.ParseStyleAttribute(aValue, this)) {
return;
}
}
aResult.SetTo(aValue);
}
|
