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23a22c597a
Editor creates a `<br>` element to end of a block if last line of the block is empty because caret should be placed as there is an empty line. Such special `<br>` element has `type` attribute whose value is "_moz". However, adding/removing the attribute is expensive and such hacky attribute shouldn't be referred nor changed by web apps. Therefore, this patch makes `HTMLBRElement` take another specific flag whether it's a special node for empty last line. For making the meaning clearer, this patch calls the such `<br>` elements as "padding `<br>` element for empty last line" insead of "moz-br". So, this patch also includes a lot of renaming methods and variables, and modifying related comments. Note that with this change, `IMEContentObserver` counts the padding `<br>` element in `<textarea>` because it's inserted before setting the new flag and setting the flag does not cause DOM tree mutation. This issue will be fixed by the following patches. Differential Revision: https://phabricator.services.mozilla.com/D39858 --HG-- extra : moz-landing-system : lando
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef TextEditUtils_h
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#define TextEditUtils_h
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#include "nscore.h"
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class nsINode;
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namespace mozilla {
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class TextEditor;
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class TextEditUtils final {
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public:
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// from TextEditRules:
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static bool IsBody(nsINode* aNode);
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static bool IsBreak(nsINode* aNode);
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};
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/***************************************************************************
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* stack based helper class for detecting end of editor initialization, in
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* order to trigger "end of init" initialization of the edit rules.
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*/
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class AutoEditInitRulesTrigger final {
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private:
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RefPtr<TextEditor> mTextEditor;
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nsresult& mResult;
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public:
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AutoEditInitRulesTrigger(TextEditor* aTextEditor, nsresult& aResult);
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MOZ_CAN_RUN_SCRIPT
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~AutoEditInitRulesTrigger();
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};
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} // namespace mozilla
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#endif // #ifndef TextEditUtils_h
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