Add new temporary ext.CodeMirror.visualEditor.init RL module which
selects the temporary ext.CodeMirror.visualEditor.v6 or non-v6 based on
$wgCodeMirrorV6. This will allow us to deploy CM6 further.
As a result of this work, the core CodeMirror class now has knowledge
of ve.ui.Surface.
Other changes:
* Add Compartment for specialCharsExtension so it can be disabled in VE.
* Add option to mediaWikiLang() to disable template folding.
* Add support for RTL wikis where $wgCodeMirrorRTL is enabled.
* Make CodeMirror.logUsage() and setCodeMirrorPreference() static.
* Fix unit and linting tests.
Some code courtesy of Fandom, GPLv2-or-later; see:
https://github.com/Wikia/mediawiki-extensions-CodeMirror/commit/ef297c48c
Bug: T357482
Change-Id: I15453b33e77e1c1b4d5e5183e41e53d56ff14c3e
Template folding is likely going to be a big 'hit' of a feature, but not
everyone will want it. Until CodeMirror prefs are introduced (T359498),
we need a way to control the rollout of template folding. This commit
adds $wgCodeMirrorTemplateFoldingNamespaces which acts similar to the
existing $wgCodeMirrorLineNumberingNamespaces.
We also move template folding to be part of CodeMirrorModeMediaWiki,
since the feature is unique to MediaWiki wikitext.
Move configuration settings to be part of the DataScript, thus removing
the need for the ResourceLoaderGetConfigVarsHook (which unnecessarily
makes the config settings available on every page load).
Other minor changes like adding missing JSDoc blocks.
Bug: T30684
Change-Id: I67518c0968f64c79e290f57b4884d30a161212d3
