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
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
|
/* -*- 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 nsIDocumentObserver_h___
#define nsIDocumentObserver_h___
#include "mozilla/EventStates.h"
#include "mozilla/StyleSheet.h"
#include "nsISupports.h"
#include "nsIMutationObserver.h"
class nsIContent;
class nsIDocument;
namespace mozilla {
namespace css {
class Rule;
} // namespace css
} // namespace mozilla
#define NS_IDOCUMENT_OBSERVER_IID \
{ 0x71041fa3, 0x6dd7, 0x4cde, \
{ 0xbb, 0x76, 0xae, 0xcc, 0x69, 0xe1, 0x75, 0x78 } }
typedef uint32_t nsUpdateType;
#define UPDATE_CONTENT_MODEL 0x00000001
#define UPDATE_STYLE 0x00000002
#define UPDATE_ALL (UPDATE_CONTENT_MODEL | UPDATE_STYLE)
// Document observer interface
class nsIDocumentObserver : public nsIMutationObserver
{
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IDOCUMENT_OBSERVER_IID)
/**
* Notify that a content model update is beginning. This call can be
* nested.
*/
virtual void BeginUpdate(nsIDocument *aDocument,
nsUpdateType aUpdateType) = 0;
/**
* Notify that a content model update is finished. This call can be
* nested.
*/
virtual void EndUpdate(nsIDocument *aDocument, nsUpdateType aUpdateType) = 0;
/**
* Notify the observer that a document load is beginning.
*/
virtual void BeginLoad(nsIDocument *aDocument) = 0;
/**
* Notify the observer that a document load has finished. Note that
* the associated reflow of the document will be done <b>before</b>
* EndLoad is invoked, not after.
*/
virtual void EndLoad(nsIDocument *aDocument) = 0;
/**
* Notification that the state of a content node has changed.
* (ie: gained or lost focus, became active or hovered over)
* This method is called automatically by content objects
* when their state is changed (therefore there is normally
* no need to invoke this method directly). The notification
* is passed to any IDocumentObservers. The notification is
* passed on to all of the document observers. <p>
*
* This notification is not sent when a piece of content is
* added/removed from the document or the content itself changed
* (the other notifications are used for that).
*
* @param aDocument The document being observed
* @param aContent the piece of content that changed
*/
virtual void ContentStateChanged(nsIDocument* aDocument,
nsIContent* aContent,
mozilla::EventStates aStateMask) = 0;
/**
* Notification that the state of the document has changed.
*
* @param aDocument The document being observed
* @param aStateMask the state that changed
*/
virtual void DocumentStatesChanged(nsIDocument* aDocument,
mozilla::EventStates aStateMask) = 0;
/**
* A StyleSheet has just been added to the document. This method is
* called automatically when a StyleSheet gets added to the
* document, even if the stylesheet is not applicable. The
* notification is passed on to all of the document observers.
*
* @param aStyleSheet the StyleSheet that has been added
* @param aDocumentSheet True if sheet is in document's style sheet list,
* false if sheet is not (i.e., UA or user sheet)
*/
virtual void StyleSheetAdded(mozilla::StyleSheet* aStyleSheet,
bool aDocumentSheet) = 0;
/**
* A StyleSheet has just been removed from the document. This
* method is called automatically when a StyleSheet gets removed
* from the document, even if the stylesheet is not applicable. The
* notification is passed on to all of the document observers.
*
* @param aStyleSheet the StyleSheet that has been removed
* @param aDocumentSheet True if sheet is in document's style sheet list,
* false if sheet is not (i.e., UA or user sheet)
*/
virtual void StyleSheetRemoved(mozilla::StyleSheet* aStyleSheet,
bool aDocumentSheet) = 0;
/**
* A StyleSheet has just changed its applicable state.
* This method is called automatically when the applicable state
* of a StyleSheet gets changed. The style sheet passes this
* notification to the document. The notification is passed on
* to all of the document observers.
*
* @param aStyleSheet the StyleSheet that has changed state
*/
virtual void StyleSheetApplicableStateChanged(mozilla::StyleSheet* aStyleSheet) = 0;
/**
* A StyleRule has just been modified within a style sheet.
* This method is called automatically when the rule gets
* modified. The style sheet passes this notification to
* the document. The notification is passed on to all of
* the document observers.
*
* @param aStyleSheet the StyleSheet that contians the rule
*/
virtual void StyleRuleChanged(mozilla::StyleSheet* aStyleSheet) = 0;
/**
* A StyleRule has just been added to a style sheet.
* This method is called automatically when the rule gets
* added to the sheet. The style sheet passes this
* notification to the document. The notification is passed on
* to all of the document observers.
*
* @param aStyleSheet the StyleSheet that has been modified
*/
virtual void StyleRuleAdded(mozilla::StyleSheet* aStyleSheet) = 0;
/**
* A StyleRule has just been removed from a style sheet.
* This method is called automatically when the rule gets
* removed from the sheet. The style sheet passes this
* notification to the document. The notification is passed on
* to all of the document observers.
*
* @param aStyleSheet the StyleSheet that has been modified
*/
virtual void StyleRuleRemoved(mozilla::StyleSheet* aStyleSheet) = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIDocumentObserver, NS_IDOCUMENT_OBSERVER_IID)
#define NS_DECL_NSIDOCUMENTOBSERVER_BEGINUPDATE \
virtual void BeginUpdate(nsIDocument* aDocument, \
nsUpdateType aUpdateType) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_ENDUPDATE \
virtual void EndUpdate(nsIDocument* aDocument, nsUpdateType aUpdateType) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_BEGINLOAD \
virtual void BeginLoad(nsIDocument* aDocument) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_ENDLOAD \
virtual void EndLoad(nsIDocument* aDocument) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_CONTENTSTATECHANGED \
virtual void ContentStateChanged(nsIDocument* aDocument, \
nsIContent* aContent, \
mozilla::EventStates aStateMask) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_DOCUMENTSTATESCHANGED \
virtual void DocumentStatesChanged(nsIDocument* aDocument, \
mozilla::EventStates aStateMask) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETADDED \
virtual void StyleSheetAdded(mozilla::StyleSheet* aStyleSheet, \
bool aDocumentSheet) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETREMOVED \
virtual void StyleSheetRemoved(mozilla::StyleSheet* aStyleSheet, \
bool aDocumentSheet) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETAPPLICABLESTATECHANGED \
virtual void StyleSheetApplicableStateChanged( \
mozilla::StyleSheet* aStyleSheet) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_STYLERULECHANGED \
virtual void StyleRuleChanged(mozilla::StyleSheet* aStyleSheet) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_STYLERULEADDED \
virtual void StyleRuleAdded(mozilla::StyleSheet* aStyleSheet) override;
#define NS_DECL_NSIDOCUMENTOBSERVER_STYLERULEREMOVED \
virtual void StyleRuleRemoved(mozilla::StyleSheet* aStyleSheet) override;
#define NS_DECL_NSIDOCUMENTOBSERVER \
NS_DECL_NSIDOCUMENTOBSERVER_BEGINUPDATE \
NS_DECL_NSIDOCUMENTOBSERVER_ENDUPDATE \
NS_DECL_NSIDOCUMENTOBSERVER_BEGINLOAD \
NS_DECL_NSIDOCUMENTOBSERVER_ENDLOAD \
NS_DECL_NSIDOCUMENTOBSERVER_CONTENTSTATECHANGED \
NS_DECL_NSIDOCUMENTOBSERVER_DOCUMENTSTATESCHANGED \
NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETADDED \
NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETREMOVED \
NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETAPPLICABLESTATECHANGED \
NS_DECL_NSIDOCUMENTOBSERVER_STYLERULECHANGED \
NS_DECL_NSIDOCUMENTOBSERVER_STYLERULEADDED \
NS_DECL_NSIDOCUMENTOBSERVER_STYLERULEREMOVED \
NS_DECL_NSIMUTATIONOBSERVER
#define NS_IMPL_NSIDOCUMENTOBSERVER_CORE_STUB(_class) \
void \
_class::BeginUpdate(nsIDocument* aDocument, nsUpdateType aUpdateType) \
{ \
} \
void \
_class::EndUpdate(nsIDocument* aDocument, nsUpdateType aUpdateType) \
{ \
} \
NS_IMPL_NSIMUTATIONOBSERVER_CORE_STUB(_class)
#define NS_IMPL_NSIDOCUMENTOBSERVER_LOAD_STUB(_class) \
void \
_class::BeginLoad(nsIDocument* aDocument) \
{ \
} \
void \
_class::EndLoad(nsIDocument* aDocument) \
{ \
}
#define NS_IMPL_NSIDOCUMENTOBSERVER_STATE_STUB(_class) \
void \
_class::ContentStateChanged(nsIDocument* aDocument, \
nsIContent* aContent, \
mozilla::EventStates aStateMask) \
{ \
} \
\
void \
_class::DocumentStatesChanged(nsIDocument* aDocument, \
mozilla::EventStates aStateMask) \
{ \
}
#define NS_IMPL_NSIDOCUMENTOBSERVER_CONTENT(_class) \
NS_IMPL_NSIMUTATIONOBSERVER_CONTENT(_class)
#define NS_IMPL_NSIDOCUMENTOBSERVER_STYLE_STUB(_class) \
void \
_class::StyleSheetAdded(mozilla::StyleSheet* aStyleSheet, \
bool aDocumentSheet) \
{ \
} \
void \
_class::StyleSheetRemoved(mozilla::StyleSheet* aStyleSheet, \
bool aDocumentSheet) \
{ \
} \
void \
_class::StyleSheetApplicableStateChanged(mozilla::StyleSheet* aStyleSheet)\
{ \
} \
void \
_class::StyleRuleChanged(mozilla::StyleSheet* aStyleSheet) \
{ \
} \
void \
_class::StyleRuleAdded(mozilla::StyleSheet* aStyleSheet) \
{ \
} \
void \
_class::StyleRuleRemoved(mozilla::StyleSheet* aStyleSheet) \
{ \
}
#endif /* nsIDocumentObserver_h___ */
|
