зеркало из https://github.com/mozilla/gecko-dev.git
Bug 483651 - Trailing <br> node not removed when it should be; r=ehsan
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Родитель
f6f2db44cb
Коммит
f14955fe44
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@ -221,11 +221,16 @@ nsTextEditRules::AfterEdit(PRInt32 action, nsIEditor::EDirection aDirection)
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nsnull, 0, nsnull, 0);
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NS_ENSURE_SUCCESS(res, res);
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// if only trailing <br> remaining remove it
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res = RemoveRedundantTrailingBR();
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if (NS_FAILED(res))
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return res;
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// detect empty doc
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res = CreateBogusNodeIfNeeded(selection);
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NS_ENSURE_SUCCESS(res, res);
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// insure trailing br node
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// ensure trailing br node
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res = CreateTrailingBRIfNeeded();
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NS_ENSURE_SUCCESS(res, res);
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@ -1045,6 +1050,66 @@ nsTextEditRules::DidOutputText(nsISelection *aSelection, nsresult aResult)
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return NS_OK;
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}
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nsresult
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nsTextEditRules::RemoveRedundantTrailingBR()
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{
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// If the bogus node exists, we have no work to do
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if (mBogusNode)
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return NS_OK;
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// Likewise, nothing to be done if we could never have inserted a trailing br
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if (IsSingleLineEditor())
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return NS_OK;
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nsIDOMNode* body = mEditor->GetRoot();
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if (!body)
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return NS_ERROR_NULL_POINTER;
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PRBool hasChildren;
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nsresult res = body->HasChildNodes(&hasChildren);
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NS_ENSURE_SUCCESS(res, res);
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if (hasChildren) {
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nsCOMPtr<nsIDOMNodeList> childList;
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res = body->GetChildNodes(getter_AddRefs(childList));
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NS_ENSURE_SUCCESS(res, res);
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if (!childList)
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return NS_ERROR_NULL_POINTER;
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PRUint32 childCount;
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res = childList->GetLength(&childCount);
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NS_ENSURE_SUCCESS(res, res);
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// The trailing br is redundant if it is the only remaining child node
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if (childCount != 1)
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return NS_OK;
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nsCOMPtr<nsIDOMNode> child;
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res = body->GetFirstChild(getter_AddRefs(child));
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NS_ENSURE_SUCCESS(res, res);
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if (nsTextEditUtils::IsMozBR(child)) {
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// Rather than deleting this node from the DOM tree we should instead
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// morph this br into the bogus node
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nsCOMPtr<nsIDOMElement> elem = do_QueryInterface(child);
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if (elem) {
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elem->RemoveAttribute(NS_LITERAL_STRING("type"));
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NS_ENSURE_SUCCESS(res, res);
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// set mBogusNode to be this <br>
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mBogusNode = elem;
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// give it the bogus node attribute
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nsCOMPtr<nsIContent> content = do_QueryInterface(elem);
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content->SetAttr(kNameSpaceID_None, kMOZEditorBogusNodeAttrAtom,
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kMOZEditorBogusNodeValue, PR_FALSE);
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}
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}
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}
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return NS_OK;
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}
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nsresult
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nsTextEditRules::CreateTrailingBRIfNeeded()
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{
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@ -205,6 +205,9 @@ protected:
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// helper functions
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/** check for and replace a redundant trailing break */
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nsresult RemoveRedundantTrailingBR();
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/** creates a trailing break in the text doc if there is not one already */
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nsresult CreateTrailingBRIfNeeded();
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@ -73,6 +73,7 @@ _TEST_FILES += \
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endif
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_CHROME_TEST_FILES = \
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test_bug483651.html \
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test_bug636465.xul \
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$(NULL)
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@ -0,0 +1,92 @@
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<!DOCTYPE HTML>
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<!-- ***** BEGIN LICENSE BLOCK *****
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- Version: MPL 1.1/GPL 2.0/LGPL 2.1
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-
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- The contents of this file are subject to the Mozilla Public License Version
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- 1.1 (the "License"); you may not use this file except in compliance with
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- the License. You may obtain a copy of the License at
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- http://www.mozilla.org/MPL/
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-
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- Software distributed under the License is distributed on an "AS IS" basis,
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- WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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- for the specific language governing rights and limitations under the
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- License.
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-
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- The Original Code is Plaintext Editor Test code
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-
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- The Initial Developer of the Original Code is
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- Graeme McCutcheon <graememcc_firefox@graeme-online.co.uk>.
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- Portions created by the Initial Developer are Copyright (C) 2009
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- the Initial Developer. All Rights Reserved.
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-
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- Contributor(s):
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-
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-
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- Alternatively, the contents of this file may be used under the terms of
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- either the GNU General Public License Version 2 or later (the "GPL"), or
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- the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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- in which case the provisions of the GPL or the LGPL are applicable instead
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- of those above. If you wish to allow use of your version of this file only
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- under the terms of either the GPL or the LGPL, and not to allow others to
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- use your version of this file under the terms of the MPL, indicate your
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- decision by deleting the provisions above and replace them with the notice
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- and other provisions required by the GPL or the LGPL. If you do not delete
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- the provisions above, a recipient may use your version of this file under
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- the terms of any one of the MPL, the GPL or the LGPL.
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-
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- ***** END LICENSE BLOCK ***** -->
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=483651
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-->
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<head>
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<title>Test for Bug 483651</title>
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<script type="application/javascript"
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src="chrome://mochikit/content/MochiKit/packed.js"></script>
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<script type="application/javascript"
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src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
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<script type="application/javascript"
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src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
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</head>
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<body onload="doTest();">
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=483651">Mozilla Bug 483651</a>
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<p id="display"></p>
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<div id="content" style="display: none">
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</div>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 483651 **/
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SimpleTest.waitForExplicitFinish();
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function doTest() {
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var t1 = $("t1");
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var editor = null;
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if (t1 instanceof Components.interfaces.nsIDOMNSEditableElement)
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editor = t1.editor;
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ok(editor, "able to get editor for the element");
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t1.focus();
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synthesizeKey("A", {});
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synthesizeKey("VK_BACK_SPACE", {});
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try {
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// Was the trailing br removed?
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is(editor.documentIsEmpty, true, "trailing <br> correctly removed");
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} catch (e) {
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ok(false, "test failed with error "+e);
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}
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SimpleTest.finish();
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}
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</script>
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</pre>
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<textarea id="t1" rows="2" columns="80"></textarea>
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</body>
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</html>
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