/src/mozilla-central/editor/libeditor/HTMLInlineTableEditor.cpp
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1 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
2 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
3 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
4 | | |
5 | | #include "mozilla/HTMLEditor.h" |
6 | | |
7 | | #include "HTMLEditUtils.h" |
8 | | #include "mozilla/dom/Element.h" |
9 | | #include "nsAString.h" |
10 | | #include "nsCOMPtr.h" |
11 | | #include "nsDebug.h" |
12 | | #include "nsError.h" |
13 | | #include "nsGenericHTMLElement.h" |
14 | | #include "nsIContent.h" |
15 | | #include "nsIHTMLObjectResizer.h" |
16 | | #include "nsIPresShell.h" |
17 | | #include "nsLiteralString.h" |
18 | | #include "nsReadableUtils.h" |
19 | | #include "nsString.h" |
20 | | #include "nscore.h" |
21 | | |
22 | | namespace mozilla { |
23 | | |
24 | | NS_IMETHODIMP |
25 | | HTMLEditor::SetInlineTableEditingEnabled(bool aIsEnabled) |
26 | 0 | { |
27 | 0 | EnableInlineTableEditor(aIsEnabled); |
28 | 0 | return NS_OK; |
29 | 0 | } |
30 | | |
31 | | NS_IMETHODIMP |
32 | | HTMLEditor::GetInlineTableEditingEnabled(bool* aIsEnabled) |
33 | 0 | { |
34 | 0 | *aIsEnabled = IsInlineTableEditorEnabled(); |
35 | 0 | return NS_OK; |
36 | 0 | } |
37 | | |
38 | | nsresult |
39 | | HTMLEditor::ShowInlineTableEditingUIInternal(Element& aCellElement) |
40 | 0 | { |
41 | 0 | if (NS_WARN_IF(!HTMLEditUtils::IsTableCell(&aCellElement))) { |
42 | 0 | return NS_OK; |
43 | 0 | } |
44 | 0 | |
45 | 0 | if (NS_WARN_IF(!IsDescendantOfEditorRoot(&aCellElement))) { |
46 | 0 | return NS_ERROR_FAILURE; |
47 | 0 | } |
48 | 0 | |
49 | 0 | if (NS_WARN_IF(mInlineEditedCell)) { |
50 | 0 | return NS_ERROR_FAILURE; |
51 | 0 | } |
52 | 0 | |
53 | 0 | mInlineEditedCell = &aCellElement; |
54 | 0 |
|
55 | 0 | // the resizers and the shadow will be anonymous children of the body |
56 | 0 | RefPtr<Element> bodyElement = GetRoot(); |
57 | 0 | if (NS_WARN_IF(!bodyElement)) { |
58 | 0 | return NS_ERROR_FAILURE; |
59 | 0 | } |
60 | 0 | |
61 | 0 | do { |
62 | 0 | // The buttons of inline table editor will be children of the <body> |
63 | 0 | // element. Creating the anonymous elements may cause calling |
64 | 0 | // HideInlineTableEditingUIInternal() via a mutation event listener. |
65 | 0 | // So, we should store new button to a local variable, then, check: |
66 | 0 | // - whether creating a button is already set to the member or not |
67 | 0 | // - whether already created buttons are changed to another set |
68 | 0 | // If creating the buttons are canceled, we hit the latter check. |
69 | 0 | // If buttons for another table are created during this, we hit the latter |
70 | 0 | // check too. |
71 | 0 | // If buttons are just created again for same element, we hit the former |
72 | 0 | // check. |
73 | 0 | ManualNACPtr addColumnBeforeButton = |
74 | 0 | CreateAnonymousElement(nsGkAtoms::a, *bodyElement, |
75 | 0 | NS_LITERAL_STRING("mozTableAddColumnBefore"), false); |
76 | 0 | if (NS_WARN_IF(!addColumnBeforeButton)) { |
77 | 0 | break; // Hide unnecessary buttons created above. |
78 | 0 | } |
79 | 0 | if (NS_WARN_IF(mAddColumnBeforeButton) || |
80 | 0 | NS_WARN_IF(mInlineEditedCell != &aCellElement)) { |
81 | 0 | return NS_ERROR_FAILURE; // Don't hide another set of buttons. |
82 | 0 | } |
83 | 0 | mAddColumnBeforeButton = std::move(addColumnBeforeButton); |
84 | 0 |
|
85 | 0 | ManualNACPtr removeColumnButton = |
86 | 0 | CreateAnonymousElement(nsGkAtoms::a, *bodyElement, |
87 | 0 | NS_LITERAL_STRING("mozTableRemoveColumn"), false); |
88 | 0 | if (NS_WARN_IF(!removeColumnButton)) { |
89 | 0 | break; |
90 | 0 | } |
91 | 0 | if (NS_WARN_IF(mRemoveColumnButton) || |
92 | 0 | NS_WARN_IF(mInlineEditedCell != &aCellElement)) { |
93 | 0 | return NS_ERROR_FAILURE; |
94 | 0 | } |
95 | 0 | mRemoveColumnButton = std::move(removeColumnButton); |
96 | 0 |
|
97 | 0 | ManualNACPtr addColumnAfterButton = |
98 | 0 | CreateAnonymousElement(nsGkAtoms::a, *bodyElement, |
99 | 0 | NS_LITERAL_STRING("mozTableAddColumnAfter"), |
100 | 0 | false); |
101 | 0 | if (NS_WARN_IF(!addColumnAfterButton)) { |
102 | 0 | break; |
103 | 0 | } |
104 | 0 | if (NS_WARN_IF(mAddColumnAfterButton) || |
105 | 0 | NS_WARN_IF(mInlineEditedCell != &aCellElement)) { |
106 | 0 | return NS_ERROR_FAILURE; |
107 | 0 | } |
108 | 0 | mAddColumnAfterButton = std::move(addColumnAfterButton); |
109 | 0 |
|
110 | 0 | ManualNACPtr addRowBeforeButton = |
111 | 0 | CreateAnonymousElement(nsGkAtoms::a, *bodyElement, |
112 | 0 | NS_LITERAL_STRING("mozTableAddRowBefore"), false); |
113 | 0 | if (NS_WARN_IF(!addRowBeforeButton)) { |
114 | 0 | break; |
115 | 0 | } |
116 | 0 | if (NS_WARN_IF(mAddRowBeforeButton) || |
117 | 0 | NS_WARN_IF(mInlineEditedCell != &aCellElement)) { |
118 | 0 | return NS_ERROR_FAILURE; |
119 | 0 | } |
120 | 0 | mAddRowBeforeButton = std::move(addRowBeforeButton); |
121 | 0 |
|
122 | 0 | ManualNACPtr removeRowButton = |
123 | 0 | CreateAnonymousElement(nsGkAtoms::a, *bodyElement, |
124 | 0 | NS_LITERAL_STRING("mozTableRemoveRow"), false); |
125 | 0 | if (NS_WARN_IF(!removeRowButton)) { |
126 | 0 | break; |
127 | 0 | } |
128 | 0 | if (NS_WARN_IF(mRemoveRowButton) || |
129 | 0 | NS_WARN_IF(mInlineEditedCell != &aCellElement)) { |
130 | 0 | return NS_ERROR_FAILURE; |
131 | 0 | } |
132 | 0 | mRemoveRowButton = std::move(removeRowButton); |
133 | 0 |
|
134 | 0 | ManualNACPtr addRowAfterButton = |
135 | 0 | CreateAnonymousElement(nsGkAtoms::a, *bodyElement, |
136 | 0 | NS_LITERAL_STRING("mozTableAddRowAfter"), false); |
137 | 0 | if (NS_WARN_IF(!addRowAfterButton)) { |
138 | 0 | break; |
139 | 0 | } |
140 | 0 | if (NS_WARN_IF(mAddRowAfterButton) || |
141 | 0 | NS_WARN_IF(mInlineEditedCell != &aCellElement)) { |
142 | 0 | return NS_ERROR_FAILURE; |
143 | 0 | } |
144 | 0 | mAddRowAfterButton = std::move(addRowAfterButton); |
145 | 0 |
|
146 | 0 | AddMouseClickListener(mAddColumnBeforeButton); |
147 | 0 | AddMouseClickListener(mRemoveColumnButton); |
148 | 0 | AddMouseClickListener(mAddColumnAfterButton); |
149 | 0 | AddMouseClickListener(mAddRowBeforeButton); |
150 | 0 | AddMouseClickListener(mRemoveRowButton); |
151 | 0 | AddMouseClickListener(mAddRowAfterButton); |
152 | 0 |
|
153 | 0 | mHasShownInlineTableEditor = true; |
154 | 0 |
|
155 | 0 | nsresult rv = RefreshInlineTableEditingUIInternal(); |
156 | 0 | if (NS_WARN_IF(NS_FAILED(rv))) { |
157 | 0 | return rv; |
158 | 0 | } |
159 | 0 | return NS_OK; |
160 | 0 | } while (true); |
161 | 0 |
|
162 | 0 | HideInlineTableEditingUIInternal(); |
163 | 0 | return NS_ERROR_FAILURE; |
164 | 0 | } |
165 | | |
166 | | void |
167 | | HTMLEditor::HideInlineTableEditingUIInternal() |
168 | 0 | { |
169 | 0 | mInlineEditedCell = nullptr; |
170 | 0 |
|
171 | 0 | RemoveMouseClickListener(mAddColumnBeforeButton); |
172 | 0 | RemoveMouseClickListener(mRemoveColumnButton); |
173 | 0 | RemoveMouseClickListener(mAddColumnAfterButton); |
174 | 0 | RemoveMouseClickListener(mAddRowBeforeButton); |
175 | 0 | RemoveMouseClickListener(mRemoveRowButton); |
176 | 0 | RemoveMouseClickListener(mAddRowAfterButton); |
177 | 0 |
|
178 | 0 | // get the presshell's document observer interface. |
179 | 0 | nsCOMPtr<nsIPresShell> ps = GetPresShell(); |
180 | 0 | // We allow the pres shell to be null; when it is, we presume there |
181 | 0 | // are no document observers to notify, but we still want to |
182 | 0 | // UnbindFromTree. |
183 | 0 |
|
184 | 0 | // Calling DeleteRefToAnonymousNode() may cause showing the UI again. |
185 | 0 | // Therefore, we should forget all anonymous contents first. |
186 | 0 | // Otherwise, we could leak the old content because of overwritten by |
187 | 0 | // ShowInlineTableEditingUIInternal(). |
188 | 0 | ManualNACPtr addColumnBeforeButton(std::move(mAddColumnBeforeButton)); |
189 | 0 | ManualNACPtr removeColumnButton(std::move(mRemoveColumnButton)); |
190 | 0 | ManualNACPtr addColumnAfterButton(std::move(mAddColumnAfterButton)); |
191 | 0 | ManualNACPtr addRowBeforeButton(std::move(mAddRowBeforeButton)); |
192 | 0 | ManualNACPtr removeRowButton(std::move(mRemoveRowButton)); |
193 | 0 | ManualNACPtr addRowAfterButton(std::move(mAddRowAfterButton)); |
194 | 0 |
|
195 | 0 | DeleteRefToAnonymousNode(std::move(addColumnBeforeButton), ps); |
196 | 0 | DeleteRefToAnonymousNode(std::move(removeColumnButton), ps); |
197 | 0 | DeleteRefToAnonymousNode(std::move(addColumnAfterButton), ps); |
198 | 0 | DeleteRefToAnonymousNode(std::move(addRowBeforeButton), ps); |
199 | 0 | DeleteRefToAnonymousNode(std::move(removeRowButton), ps); |
200 | 0 | DeleteRefToAnonymousNode(std::move(addRowAfterButton), ps); |
201 | 0 | } |
202 | | |
203 | | nsresult |
204 | | HTMLEditor::DoInlineTableEditingAction(const Element& aElement) |
205 | 0 | { |
206 | 0 | nsAutoString anonclass; |
207 | 0 | aElement.GetAttr(kNameSpaceID_None, nsGkAtoms::_moz_anonclass, anonclass); |
208 | 0 |
|
209 | 0 | if (!StringBeginsWith(anonclass, NS_LITERAL_STRING("mozTable"))) { |
210 | 0 | return NS_OK; |
211 | 0 | } |
212 | 0 | |
213 | 0 | RefPtr<Element> tableElement = GetEnclosingTable(mInlineEditedCell); |
214 | 0 | int32_t rowCount, colCount; |
215 | 0 | nsresult rv = GetTableSize(tableElement, &rowCount, &colCount); |
216 | 0 | NS_ENSURE_SUCCESS(rv, rv); |
217 | 0 |
|
218 | 0 | bool hideUI = false; |
219 | 0 | bool hideResizersWithInlineTableUI = (mResizedObject == tableElement); |
220 | 0 |
|
221 | 0 | if (anonclass.EqualsLiteral("mozTableAddColumnBefore")) { |
222 | 0 | DebugOnly<nsresult> rv = |
223 | 0 | InsertTableColumnsWithTransaction(1, InsertPosition::eBeforeSelectedCell); |
224 | 0 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), |
225 | 0 | "Failed to insert a column before the selected cell"); |
226 | 0 | } else if (anonclass.EqualsLiteral("mozTableAddColumnAfter")) { |
227 | 0 | DebugOnly<nsresult> rv = |
228 | 0 | InsertTableColumnsWithTransaction(1, InsertPosition::eAfterSelectedCell); |
229 | 0 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), |
230 | 0 | "Failed to insert a column after the selected cell"); |
231 | 0 | } else if (anonclass.EqualsLiteral("mozTableAddRowBefore")) { |
232 | 0 | DebugOnly<nsresult> rv = |
233 | 0 | InsertTableRowsWithTransaction(1, InsertPosition::eBeforeSelectedCell); |
234 | 0 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), |
235 | 0 | "Failed to insert a row before the selected cell"); |
236 | 0 | } else if (anonclass.EqualsLiteral("mozTableAddRowAfter")) { |
237 | 0 | DebugOnly<nsresult> rv = |
238 | 0 | InsertTableRowsWithTransaction(1, InsertPosition::eAfterSelectedCell); |
239 | 0 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), |
240 | 0 | "Failed to insert a row after the selected cell"); |
241 | 0 | } else if (anonclass.EqualsLiteral("mozTableRemoveColumn")) { |
242 | 0 | DebugOnly<nsresult> rv = DeleteSelectedTableColumnsWithTransaction(1); |
243 | 0 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), |
244 | 0 | "Failed to delete the selected table column"); |
245 | 0 | hideUI = (colCount == 1); |
246 | 0 | } else if (anonclass.EqualsLiteral("mozTableRemoveRow")) { |
247 | 0 | DebugOnly<nsresult> rv = DeleteSelectedTableRowsWithTransaction(1); |
248 | 0 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), |
249 | 0 | "Failed to delete the selected table row"); |
250 | 0 | hideUI = (rowCount == 1); |
251 | 0 | } else { |
252 | 0 | return NS_OK; |
253 | 0 | } |
254 | 0 | |
255 | 0 | ++mInlineTableEditorUsedCount; |
256 | 0 |
|
257 | 0 | // InsertTableRowsWithTransaction() might causes reframe. |
258 | 0 | if (Destroyed()) { |
259 | 0 | return NS_OK; |
260 | 0 | } |
261 | 0 | |
262 | 0 | if (hideUI) { |
263 | 0 | HideInlineTableEditingUIInternal(); |
264 | 0 | if (hideResizersWithInlineTableUI) { |
265 | 0 | DebugOnly<nsresult> rv = HideResizersInternal(); |
266 | 0 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Failed to hide resizers"); |
267 | 0 | } |
268 | 0 | } |
269 | 0 |
|
270 | 0 | return NS_OK; |
271 | 0 | } |
272 | | |
273 | | void |
274 | | HTMLEditor::AddMouseClickListener(Element* aElement) |
275 | 0 | { |
276 | 0 | if (aElement) { |
277 | 0 | aElement->AddEventListener(NS_LITERAL_STRING("click"), |
278 | 0 | mEventListener, true); |
279 | 0 | } |
280 | 0 | } |
281 | | |
282 | | void |
283 | | HTMLEditor::RemoveMouseClickListener(Element* aElement) |
284 | 0 | { |
285 | 0 | if (aElement) { |
286 | 0 | aElement->RemoveEventListener(NS_LITERAL_STRING("click"), |
287 | 0 | mEventListener, true); |
288 | 0 | } |
289 | 0 | } |
290 | | |
291 | | NS_IMETHODIMP |
292 | | HTMLEditor::RefreshInlineTableEditingUI() |
293 | 0 | { |
294 | 0 | nsresult rv = RefreshInlineTableEditingUIInternal(); |
295 | 0 | if (NS_WARN_IF(NS_FAILED(rv))) { |
296 | 0 | return rv; |
297 | 0 | } |
298 | 0 | return NS_OK; |
299 | 0 | } |
300 | | |
301 | | nsresult |
302 | | HTMLEditor::RefreshInlineTableEditingUIInternal() |
303 | 0 | { |
304 | 0 | if (!mInlineEditedCell) { |
305 | 0 | return NS_OK; |
306 | 0 | } |
307 | 0 | |
308 | 0 | RefPtr<nsGenericHTMLElement> inlineEditingCellElement = |
309 | 0 | nsGenericHTMLElement::FromNode(mInlineEditedCell); |
310 | 0 | if (NS_WARN_IF(!inlineEditingCellElement)) { |
311 | 0 | return NS_ERROR_FAILURE; |
312 | 0 | } |
313 | 0 | |
314 | 0 | int32_t cellX = 0, cellY = 0; |
315 | 0 | GetElementOrigin(*mInlineEditedCell, cellX, cellY); |
316 | 0 |
|
317 | 0 | int32_t cellWidth = inlineEditingCellElement->OffsetWidth(); |
318 | 0 | int32_t cellHeight = inlineEditingCellElement->OffsetHeight(); |
319 | 0 |
|
320 | 0 | int32_t centerOfCellX = cellX + cellWidth / 2; |
321 | 0 | int32_t centerOfCellY = cellY + cellHeight / 2; |
322 | 0 |
|
323 | 0 | RefPtr<Element> tableElement = GetEnclosingTable(mInlineEditedCell); |
324 | 0 | int32_t rowCount = 0, colCount = 0; |
325 | 0 | nsresult rv = GetTableSize(tableElement, &rowCount, &colCount); |
326 | 0 | if (NS_WARN_IF(NS_FAILED(rv))) { |
327 | 0 | return rv; |
328 | 0 | } |
329 | 0 | |
330 | 0 | RefPtr<Element> addColumunBeforeButton = mAddColumnBeforeButton.get(); |
331 | 0 | SetAnonymousElementPosition(centerOfCellX - 10, cellY - 7, |
332 | 0 | addColumunBeforeButton); |
333 | 0 | if (NS_WARN_IF(addColumunBeforeButton != mAddColumnBeforeButton.get())) { |
334 | 0 | return NS_ERROR_FAILURE; |
335 | 0 | } |
336 | 0 | |
337 | 0 | RefPtr<Element> removeColumnButton = mRemoveColumnButton.get(); |
338 | 0 | SetAnonymousElementPosition(centerOfCellX - 4, cellY - 7, removeColumnButton); |
339 | 0 | if (NS_WARN_IF(removeColumnButton != mRemoveColumnButton.get())) { |
340 | 0 | return NS_ERROR_FAILURE; |
341 | 0 | } |
342 | 0 | |
343 | 0 | RefPtr<Element> addColumnAfterButton = mAddColumnAfterButton.get(); |
344 | 0 | SetAnonymousElementPosition(centerOfCellX + 6, cellY - 7, |
345 | 0 | addColumnAfterButton); |
346 | 0 | if (NS_WARN_IF(addColumnAfterButton != mAddColumnAfterButton.get())) { |
347 | 0 | return NS_ERROR_FAILURE; |
348 | 0 | } |
349 | 0 | |
350 | 0 | RefPtr<Element> addRowBeforeButton = mAddRowBeforeButton.get(); |
351 | 0 | SetAnonymousElementPosition(cellX - 7, centerOfCellY - 10, |
352 | 0 | addRowBeforeButton); |
353 | 0 | if (NS_WARN_IF(addRowBeforeButton != mAddRowBeforeButton.get())) { |
354 | 0 | return NS_ERROR_FAILURE; |
355 | 0 | } |
356 | 0 | |
357 | 0 | RefPtr<Element> removeRowButton = mRemoveRowButton.get(); |
358 | 0 | SetAnonymousElementPosition(cellX - 7, centerOfCellY - 4, removeRowButton); |
359 | 0 | if (NS_WARN_IF(removeRowButton != mRemoveRowButton.get())) { |
360 | 0 | return NS_ERROR_FAILURE; |
361 | 0 | } |
362 | 0 | |
363 | 0 | RefPtr<Element> addRowAfterButton = mAddRowAfterButton.get(); |
364 | 0 | SetAnonymousElementPosition(cellX - 7, centerOfCellY + 6, addRowAfterButton); |
365 | 0 | if (NS_WARN_IF(addRowAfterButton != mAddRowAfterButton.get())) { |
366 | 0 | return NS_ERROR_FAILURE; |
367 | 0 | } |
368 | 0 | |
369 | 0 | return NS_OK; |
370 | 0 | } |
371 | | |
372 | | } // namespace mozilla |