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37 :
38 :
39 : #include "nsEditor.h"
40 :
41 : #include "nsCSSStyleSheet.h"
42 : #include "nsIDocument.h"
43 : #include "nsIDocumentObserver.h"
44 : #include "nsISelectionController.h"
45 :
46 :
47 : #include "nsStyleSheetTxns.h"
48 :
49 : static void
50 0 : AddStyleSheet(nsIEditor* aEditor, nsIStyleSheet* aSheet)
51 : {
52 0 : nsCOMPtr<nsIDOMDocument> domDoc;
53 0 : aEditor->GetDocument(getter_AddRefs(domDoc));
54 0 : nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
55 0 : if (doc) {
56 0 : doc->BeginUpdate(UPDATE_STYLE);
57 0 : doc->AddStyleSheet(aSheet);
58 0 : doc->EndUpdate(UPDATE_STYLE);
59 : }
60 0 : }
61 :
62 : static void
63 0 : RemoveStyleSheet(nsIEditor *aEditor, nsIStyleSheet *aSheet)
64 : {
65 0 : nsCOMPtr<nsIDOMDocument> domDoc;
66 0 : aEditor->GetDocument(getter_AddRefs(domDoc));
67 0 : nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
68 0 : if (doc) {
69 0 : doc->BeginUpdate(UPDATE_STYLE);
70 0 : doc->RemoveStyleSheet(aSheet);
71 0 : doc->EndUpdate(UPDATE_STYLE);
72 : }
73 0 : }
74 :
75 0 : AddStyleSheetTxn::AddStyleSheetTxn()
76 : : EditTxn()
77 0 : , mEditor(NULL)
78 : {
79 0 : }
80 :
81 1464 : NS_IMPL_CYCLE_COLLECTION_CLASS(AddStyleSheetTxn)
82 :
83 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(AddStyleSheetTxn, EditTxn)
84 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mSheet)
85 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_END
86 :
87 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(AddStyleSheetTxn, EditTxn)
88 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mSheet, nsIStyleSheet)
89 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
90 :
91 0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AddStyleSheetTxn)
92 0 : NS_INTERFACE_MAP_END_INHERITING(EditTxn)
93 :
94 : NS_IMETHODIMP
95 0 : AddStyleSheetTxn::Init(nsIEditor *aEditor, nsCSSStyleSheet *aSheet)
96 : {
97 0 : NS_ENSURE_TRUE(aEditor && aSheet, NS_ERROR_INVALID_ARG);
98 :
99 0 : mEditor = aEditor;
100 0 : mSheet = aSheet;
101 :
102 0 : return NS_OK;
103 : }
104 :
105 :
106 : NS_IMETHODIMP
107 0 : AddStyleSheetTxn::DoTransaction()
108 : {
109 0 : NS_ENSURE_TRUE(mEditor && mSheet, NS_ERROR_NOT_INITIALIZED);
110 :
111 0 : AddStyleSheet(mEditor, mSheet);
112 0 : return NS_OK;
113 : }
114 :
115 : NS_IMETHODIMP
116 0 : AddStyleSheetTxn::UndoTransaction()
117 : {
118 0 : NS_ENSURE_TRUE(mEditor && mSheet, NS_ERROR_NOT_INITIALIZED);
119 :
120 0 : RemoveStyleSheet(mEditor, mSheet);
121 0 : return NS_OK;
122 : }
123 :
124 : NS_IMETHODIMP
125 0 : AddStyleSheetTxn::GetTxnDescription(nsAString& aString)
126 : {
127 0 : aString.AssignLiteral("AddStyleSheetTxn");
128 0 : return NS_OK;
129 : }
130 :
131 :
132 0 : RemoveStyleSheetTxn::RemoveStyleSheetTxn()
133 : : EditTxn()
134 0 : , mEditor(NULL)
135 : {
136 0 : }
137 :
138 1464 : NS_IMPL_CYCLE_COLLECTION_CLASS(RemoveStyleSheetTxn)
139 :
140 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(RemoveStyleSheetTxn, EditTxn)
141 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mSheet)
142 0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_END
143 :
144 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(RemoveStyleSheetTxn, EditTxn)
145 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mSheet, nsIStyleSheet)
146 0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
147 :
148 0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(RemoveStyleSheetTxn)
149 0 : NS_INTERFACE_MAP_END_INHERITING(EditTxn)
150 :
151 : NS_IMETHODIMP
152 0 : RemoveStyleSheetTxn::Init(nsIEditor *aEditor, nsCSSStyleSheet *aSheet)
153 : {
154 0 : NS_ENSURE_TRUE(aEditor && aSheet, NS_ERROR_INVALID_ARG);
155 :
156 0 : mEditor = aEditor;
157 0 : mSheet = aSheet;
158 :
159 0 : return NS_OK;
160 : }
161 :
162 :
163 : NS_IMETHODIMP
164 0 : RemoveStyleSheetTxn::DoTransaction()
165 : {
166 0 : NS_ENSURE_TRUE(mEditor && mSheet, NS_ERROR_NOT_INITIALIZED);
167 :
168 0 : RemoveStyleSheet(mEditor, mSheet);
169 0 : return NS_OK;
170 : }
171 :
172 : NS_IMETHODIMP
173 0 : RemoveStyleSheetTxn::UndoTransaction()
174 : {
175 0 : NS_ENSURE_TRUE(mEditor && mSheet, NS_ERROR_NOT_INITIALIZED);
176 :
177 0 : AddStyleSheet(mEditor, mSheet);
178 0 : return NS_OK;
179 : }
180 :
181 : NS_IMETHODIMP
182 0 : RemoveStyleSheetTxn::GetTxnDescription(nsAString& aString)
183 : {
184 0 : aString.AssignLiteral("RemoveStyleSheetTxn");
185 0 : return NS_OK;
186 4392 : }
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