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content/base/public/nsIDocumentObserver.h@a63d609f5ebe (annotated)

content/base/public/nsIDocumentObserver.h

Thu, 15 Jan 2015 15:55:04 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 15 Jan 2015 15:55:04 +0100

branch

TOR_BUG_9701

changeset 9

a63d609f5ebe

permissions

-rw-r--r--

Back out 97036ab72558 which inappropriately compared turds to third parties.

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5	#ifndef nsIDocumentObserver_h___
michael@0	6	#define nsIDocumentObserver_h___
michael@0	7
michael@0	8	#include "mozilla/EventStates.h"
michael@0	9	#include "nsISupports.h"
michael@0	10	#include "nsIMutationObserver.h"
michael@0	11
michael@0	12	class nsIAtom;
michael@0	13	class nsIContent;
michael@0	14	class nsIStyleSheet;
michael@0	15	class nsIStyleRule;
michael@0	16	class nsString;
michael@0	17	class nsIDocument;
michael@0	18
michael@0	19	#define NS_IDOCUMENT_OBSERVER_IID \
michael@0	20	{ 0x900bc4bc, 0x8b6c, 0x4cba, \
michael@0	21	{ 0x82, 0xfa, 0x56, 0x8a, 0x80, 0xff, 0xfd, 0x3e } }
michael@0	22
michael@0	23	typedef uint32_t nsUpdateType;
michael@0	24
michael@0	25	#define UPDATE_CONTENT_MODEL 0x00000001
michael@0	26	#define UPDATE_STYLE 0x00000002
michael@0	27	#define UPDATE_ALL (UPDATE_CONTENT_MODEL | UPDATE_STYLE)
michael@0	28
michael@0	29	// Document observer interface
michael@0	30	class nsIDocumentObserver : public nsIMutationObserver
michael@0	31	{
michael@0	32	public:
michael@0	33	NS_DECLARE_STATIC_IID_ACCESSOR(NS_IDOCUMENT_OBSERVER_IID)
michael@0	34
michael@0	35	/**
michael@0	36	* Notify that a content model update is beginning. This call can be
michael@0	37	* nested.
michael@0	38	*/
michael@0	39	virtual void BeginUpdate(nsIDocument *aDocument,
michael@0	40	nsUpdateType aUpdateType) = 0;
michael@0	41
michael@0	42	/**
michael@0	43	* Notify that a content model update is finished. This call can be
michael@0	44	* nested.
michael@0	45	*/
michael@0	46	virtual void EndUpdate(nsIDocument *aDocument, nsUpdateType aUpdateType) = 0;
michael@0	47
michael@0	48	/**
michael@0	49	* Notify the observer that a document load is beginning.
michael@0	50	*/
michael@0	51	virtual void BeginLoad(nsIDocument *aDocument) = 0;
michael@0	52
michael@0	53	/**
michael@0	54	* Notify the observer that a document load has finished. Note that
michael@0	55	* the associated reflow of the document will be done <b>before</b>
michael@0	56	* EndLoad is invoked, not after.
michael@0	57	*/
michael@0	58	virtual void EndLoad(nsIDocument *aDocument) = 0;
michael@0	59
michael@0	60	/**
michael@0	61	* Notification that the state of a content node has changed.
michael@0	62	* (ie: gained or lost focus, became active or hovered over)
michael@0	63	* This method is called automatically by content objects
michael@0	64	* when their state is changed (therefore there is normally
michael@0	65	* no need to invoke this method directly). The notification
michael@0	66	* is passed to any IDocumentObservers. The notification is
michael@0	67	* passed on to all of the document observers. <p>
michael@0	68	*
michael@0	69	* This notification is not sent when a piece of content is
michael@0	70	* added/removed from the document or the content itself changed
michael@0	71	* (the other notifications are used for that).
michael@0	72	*
michael@0	73	* @param aDocument The document being observed
michael@0	74	* @param aContent the piece of content that changed
michael@0	75	*/
michael@0	76	virtual void ContentStateChanged(nsIDocument* aDocument,
michael@0	77	nsIContent* aContent,
michael@0	78	mozilla::EventStates aStateMask) = 0;
michael@0	79
michael@0	80	/**
michael@0	81	* Notification that the state of the document has changed.
michael@0	82	*
michael@0	83	* @param aDocument The document being observed
michael@0	84	* @param aStateMask the state that changed
michael@0	85	*/
michael@0	86	virtual void DocumentStatesChanged(nsIDocument* aDocument,
michael@0	87	mozilla::EventStates aStateMask) = 0;
michael@0	88
michael@0	89	/**
michael@0	90	* A StyleSheet has just been added to the document. This method is
michael@0	91	* called automatically when a StyleSheet gets added to the
michael@0	92	* document, even if the stylesheet is not applicable. The
michael@0	93	* notification is passed on to all of the document observers.
michael@0	94	*
michael@0	95	* @param aDocument The document being observed
michael@0	96	* @param aStyleSheet the StyleSheet that has been added
michael@0	97	* @param aDocumentSheet True if sheet is in document's style sheet list,
michael@0	98	* false if sheet is not (i.e., UA or user sheet)
michael@0	99	*/
michael@0	100	virtual void StyleSheetAdded(nsIDocument *aDocument,
michael@0	101	nsIStyleSheet* aStyleSheet,
michael@0	102	bool aDocumentSheet) = 0;
michael@0	103
michael@0	104	/**
michael@0	105	* A StyleSheet has just been removed from the document. This
michael@0	106	* method is called automatically when a StyleSheet gets removed
michael@0	107	* from the document, even if the stylesheet is not applicable. The
michael@0	108	* notification is passed on to all of the document observers.
michael@0	109	*
michael@0	110	* @param aDocument The document being observed
michael@0	111	* @param aStyleSheet the StyleSheet that has been removed
michael@0	112	* @param aDocumentSheet True if sheet is in document's style sheet list,
michael@0	113	* false if sheet is not (i.e., UA or user sheet)
michael@0	114	*/
michael@0	115	virtual void StyleSheetRemoved(nsIDocument *aDocument,
michael@0	116	nsIStyleSheet* aStyleSheet,
michael@0	117	bool aDocumentSheet) = 0;
michael@0	118
michael@0	119	/**
michael@0	120	* A StyleSheet has just changed its applicable state.
michael@0	121	* This method is called automatically when the applicable state
michael@0	122	* of a StyleSheet gets changed. The style sheet passes this
michael@0	123	* notification to the document. The notification is passed on
michael@0	124	* to all of the document observers.
michael@0	125	*
michael@0	126	* @param aDocument The document being observed
michael@0	127	* @param aStyleSheet the StyleSheet that has changed state
michael@0	128	* @param aApplicable true if the sheet is applicable, false if
michael@0	129	* it is not applicable
michael@0	130	*/
michael@0	131	virtual void StyleSheetApplicableStateChanged(nsIDocument *aDocument,
michael@0	132	nsIStyleSheet* aStyleSheet,
michael@0	133	bool aApplicable) = 0;
michael@0	134
michael@0	135	/**
michael@0	136	* A StyleRule has just been modified within a style sheet.
michael@0	137	* This method is called automatically when the rule gets
michael@0	138	* modified. The style sheet passes this notification to
michael@0	139	* the document. The notification is passed on to all of
michael@0	140	* the document observers.
michael@0	141	*
michael@0	142	* Since nsIStyleRule objects are immutable, there is a new object
michael@0	143	* replacing the old one. However, the use of this method (rather
michael@0	144	* than StyleRuleAdded and StyleRuleRemoved) implies that the new rule
michael@0	145	* matches the same elements and has the same priority (weight,
michael@0	146	* origin, specificity) as the old one. (However, if it is a CSS
michael@0	147	* style rule, there may be a change in whether it has an important
michael@0	148	* rule.)
michael@0	149	*
michael@0	150	* @param aDocument The document being observed
michael@0	151	* @param aStyleSheet the StyleSheet that contians the rule
michael@0	152	* @param aOldStyleRule The rule being removed. This rule may not be
michael@0	153	* fully valid anymore -- however, it can still
michael@0	154	* be used for pointer comparison and
michael@0	155	* |QueryInterface|.
michael@0	156	* @param aNewStyleRule The rule being added.
michael@0	157	*/
michael@0	158	virtual void StyleRuleChanged(nsIDocument *aDocument,
michael@0	159	nsIStyleSheet* aStyleSheet,
michael@0	160	nsIStyleRule* aOldStyleRule,
michael@0	161	nsIStyleRule* aNewStyleRule) = 0;
michael@0	162
michael@0	163	/**
michael@0	164	* A StyleRule has just been added to a style sheet.
michael@0	165	* This method is called automatically when the rule gets
michael@0	166	* added to the sheet. The style sheet passes this
michael@0	167	* notification to the document. The notification is passed on
michael@0	168	* to all of the document observers.
michael@0	169	*
michael@0	170	* @param aDocument The document being observed
michael@0	171	* @param aStyleSheet the StyleSheet that has been modified
michael@0	172	* @param aStyleRule the rule that was added
michael@0	173	*/
michael@0	174	virtual void StyleRuleAdded(nsIDocument *aDocument,
michael@0	175	nsIStyleSheet* aStyleSheet,
michael@0	176	nsIStyleRule* aStyleRule) = 0;
michael@0	177
michael@0	178	/**
michael@0	179	* A StyleRule has just been removed from a style sheet.
michael@0	180	* This method is called automatically when the rule gets
michael@0	181	* removed from the sheet. The style sheet passes this
michael@0	182	* notification to the document. The notification is passed on
michael@0	183	* to all of the document observers.
michael@0	184	*
michael@0	185	* @param aDocument The document being observed
michael@0	186	* @param aStyleSheet the StyleSheet that has been modified
michael@0	187	* @param aStyleRule the rule that was removed
michael@0	188	*/
michael@0	189	virtual void StyleRuleRemoved(nsIDocument *aDocument,
michael@0	190	nsIStyleSheet* aStyleSheet,
michael@0	191	nsIStyleRule* aStyleRule) = 0;
michael@0	192	};
michael@0	193
michael@0	194	NS_DEFINE_STATIC_IID_ACCESSOR(nsIDocumentObserver, NS_IDOCUMENT_OBSERVER_IID)
michael@0	195
michael@0	196	#define NS_DECL_NSIDOCUMENTOBSERVER_BEGINUPDATE \
michael@0	197	virtual void BeginUpdate(nsIDocument* aDocument, \
michael@0	198	nsUpdateType aUpdateType);
michael@0	199
michael@0	200	#define NS_DECL_NSIDOCUMENTOBSERVER_ENDUPDATE \
michael@0	201	virtual void EndUpdate(nsIDocument* aDocument, nsUpdateType aUpdateType);
michael@0	202
michael@0	203	#define NS_DECL_NSIDOCUMENTOBSERVER_BEGINLOAD \
michael@0	204	virtual void BeginLoad(nsIDocument* aDocument);
michael@0	205
michael@0	206	#define NS_DECL_NSIDOCUMENTOBSERVER_ENDLOAD \
michael@0	207	virtual void EndLoad(nsIDocument* aDocument);
michael@0	208
michael@0	209	#define NS_DECL_NSIDOCUMENTOBSERVER_CONTENTSTATECHANGED \
michael@0	210	virtual void ContentStateChanged(nsIDocument* aDocument, \
michael@0	211	nsIContent* aContent, \
michael@0	212	mozilla::EventStates aStateMask);
michael@0	213
michael@0	214	#define NS_DECL_NSIDOCUMENTOBSERVER_DOCUMENTSTATESCHANGED \
michael@0	215	virtual void DocumentStatesChanged(nsIDocument* aDocument, \
michael@0	216	mozilla::EventStates aStateMask);
michael@0	217
michael@0	218	#define NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETADDED \
michael@0	219	virtual void StyleSheetAdded(nsIDocument* aDocument, \
michael@0	220	nsIStyleSheet* aStyleSheet, \
michael@0	221	bool aDocumentSheet);
michael@0	222
michael@0	223	#define NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETREMOVED \
michael@0	224	virtual void StyleSheetRemoved(nsIDocument* aDocument, \
michael@0	225	nsIStyleSheet* aStyleSheet, \
michael@0	226	bool aDocumentSheet);
michael@0	227
michael@0	228	#define NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETAPPLICABLESTATECHANGED \
michael@0	229	virtual void StyleSheetApplicableStateChanged(nsIDocument* aDocument, \
michael@0	230	nsIStyleSheet* aStyleSheet,\
michael@0	231	bool aApplicable);
michael@0	232
michael@0	233	#define NS_DECL_NSIDOCUMENTOBSERVER_STYLERULECHANGED \
michael@0	234	virtual void StyleRuleChanged(nsIDocument* aDocument, \
michael@0	235	nsIStyleSheet* aStyleSheet, \
michael@0	236	nsIStyleRule* aOldStyleRule, \
michael@0	237	nsIStyleRule* aNewStyleRule);
michael@0	238
michael@0	239	#define NS_DECL_NSIDOCUMENTOBSERVER_STYLERULEADDED \
michael@0	240	virtual void StyleRuleAdded(nsIDocument* aDocument, \
michael@0	241	nsIStyleSheet* aStyleSheet, \
michael@0	242	nsIStyleRule* aStyleRule);
michael@0	243
michael@0	244	#define NS_DECL_NSIDOCUMENTOBSERVER_STYLERULEREMOVED \
michael@0	245	virtual void StyleRuleRemoved(nsIDocument* aDocument, \
michael@0	246	nsIStyleSheet* aStyleSheet, \
michael@0	247	nsIStyleRule* aStyleRule);
michael@0	248
michael@0	249	#define NS_DECL_NSIDOCUMENTOBSERVER \
michael@0	250	NS_DECL_NSIDOCUMENTOBSERVER_BEGINUPDATE \
michael@0	251	NS_DECL_NSIDOCUMENTOBSERVER_ENDUPDATE \
michael@0	252	NS_DECL_NSIDOCUMENTOBSERVER_BEGINLOAD \
michael@0	253	NS_DECL_NSIDOCUMENTOBSERVER_ENDLOAD \
michael@0	254	NS_DECL_NSIDOCUMENTOBSERVER_CONTENTSTATECHANGED \
michael@0	255	NS_DECL_NSIDOCUMENTOBSERVER_DOCUMENTSTATESCHANGED \
michael@0	256	NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETADDED \
michael@0	257	NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETREMOVED \
michael@0	258	NS_DECL_NSIDOCUMENTOBSERVER_STYLESHEETAPPLICABLESTATECHANGED \
michael@0	259	NS_DECL_NSIDOCUMENTOBSERVER_STYLERULECHANGED \
michael@0	260	NS_DECL_NSIDOCUMENTOBSERVER_STYLERULEADDED \
michael@0	261	NS_DECL_NSIDOCUMENTOBSERVER_STYLERULEREMOVED \
michael@0	262	NS_DECL_NSIMUTATIONOBSERVER
michael@0	263
michael@0	264
michael@0	265	#define NS_IMPL_NSIDOCUMENTOBSERVER_CORE_STUB(_class) \
michael@0	266	void \
michael@0	267	_class::BeginUpdate(nsIDocument* aDocument, nsUpdateType aUpdateType) \
michael@0	268	{ \
michael@0	269	} \
michael@0	270	void \
michael@0	271	_class::EndUpdate(nsIDocument* aDocument, nsUpdateType aUpdateType) \
michael@0	272	{ \
michael@0	273	} \
michael@0	274	NS_IMPL_NSIMUTATIONOBSERVER_CORE_STUB(_class)
michael@0	275
michael@0	276	#define NS_IMPL_NSIDOCUMENTOBSERVER_LOAD_STUB(_class) \
michael@0	277	void \
michael@0	278	_class::BeginLoad(nsIDocument* aDocument) \
michael@0	279	{ \
michael@0	280	} \
michael@0	281	void \
michael@0	282	_class::EndLoad(nsIDocument* aDocument) \
michael@0	283	{ \
michael@0	284	}
michael@0	285
michael@0	286	#define NS_IMPL_NSIDOCUMENTOBSERVER_STATE_STUB(_class) \
michael@0	287	void \
michael@0	288	_class::ContentStateChanged(nsIDocument* aDocument, \
michael@0	289	nsIContent* aContent, \
michael@0	290	mozilla::EventStates aStateMask) \
michael@0	291	{ \
michael@0	292	} \
michael@0	293	\
michael@0	294	void \
michael@0	295	_class::DocumentStatesChanged(nsIDocument* aDocument, \
michael@0	296	mozilla::EventStates aStateMask) \
michael@0	297	{ \
michael@0	298	}
michael@0	299
michael@0	300	#define NS_IMPL_NSIDOCUMENTOBSERVER_CONTENT(_class) \
michael@0	301	NS_IMPL_NSIMUTATIONOBSERVER_CONTENT(_class)
michael@0	302
michael@0	303	#define NS_IMPL_NSIDOCUMENTOBSERVER_STYLE_STUB(_class) \
michael@0	304	void \
michael@0	305	_class::StyleSheetAdded(nsIDocument* aDocument, \
michael@0	306	nsIStyleSheet* aStyleSheet, \
michael@0	307	bool aDocumentSheet) \
michael@0	308	{ \
michael@0	309	} \
michael@0	310	void \
michael@0	311	_class::StyleSheetRemoved(nsIDocument* aDocument, \
michael@0	312	nsIStyleSheet* aStyleSheet, \
michael@0	313	bool aDocumentSheet) \
michael@0	314	{ \
michael@0	315	} \
michael@0	316	void \
michael@0	317	_class::StyleSheetApplicableStateChanged(nsIDocument* aDocument, \
michael@0	318	nsIStyleSheet* aStyleSheet, \
michael@0	319	bool aApplicable) \
michael@0	320	{ \
michael@0	321	} \
michael@0	322	void \
michael@0	323	_class::StyleRuleChanged(nsIDocument* aDocument, \
michael@0	324	nsIStyleSheet* aStyleSheet, \
michael@0	325	nsIStyleRule* aOldStyleRule, \
michael@0	326	nsIStyleRule* aNewStyleRule) \
michael@0	327	{ \
michael@0	328	} \
michael@0	329	void \
michael@0	330	_class::StyleRuleAdded(nsIDocument* aDocument, \
michael@0	331	nsIStyleSheet* aStyleSheet, \
michael@0	332	nsIStyleRule* aStyleRule) \
michael@0	333	{ \
michael@0	334	} \
michael@0	335	void \
michael@0	336	_class::StyleRuleRemoved(nsIDocument* aDocument, \
michael@0	337	nsIStyleSheet* aStyleSheet, \
michael@0	338	nsIStyleRule* aStyleRule) \
michael@0	339	{ \
michael@0	340	}
michael@0	341
michael@0	342	#endif /* nsIDocumentObserver_h___ */