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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 |
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| doc | ||
| ds | ||
| glue | ||
| idl-parser | ||
| io | ||
| libxpt/xptcall | ||
| reflect | ||
| rust | ||
| string | ||
| system | ||
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| windbgdlg | ||
| xpidl | ||
| moz.build | ||
| xpcom-config.h.in | ||
| xpcom-private.h.in | ||