Weston Ruter 90bedf8f9d Editor: Add CodeMirror-powered code editor with syntax highlighting, linting, and auto-completion. ... * Code editor is integrated into the Theme/Plugin Editor, Additional CSS in Customizer, and Custom HTML widget. Code editor is not yet integrated into the post editor, and it may not be until accessibility concerns are addressed. * The CodeMirror component in the Custom HTML widget is integrated in a similar way to TinyMCE being integrated into the Text widget, adopting the same approach for integrating dynamic JavaScript-initialized fields. * Linting is performed for JS, CSS, HTML, and JSON via JSHint, CSSLint, HTMLHint, and JSONLint respectively. Linting is not yet supported for PHP. * When user lacks `unfiltered_html` the capability, the Custom HTML widget will report any Kses-invalid elements and attributes as errors via a custom Kses rule for HTMLHint. * When linting errors are detected, the user will be prevented from saving the code until the errors are fixed, reducing instances of broken websites. * The placeholder value is removed from Custom CSS in favor of a fleshed-out section description which now auto-expands when the CSS field is empty. See #39892. * The CodeMirror library is included as `wp.CodeMirror` to prevent conflicts with any existing `CodeMirror` global. * An `wp.codeEditor.initialize()` API in JS is provided to convert a `textarea` into CodeMirror, with a `wp_enqueue_code_editor()` function in PHP to manage enqueueing the assets and settings needed to edit a given type of code. * A user preference is added to manage whether or not "syntax highlighting" is enabled. The feature is opt-out, being enabled by default. * Allowed file extensions in the theme and plugin editors have been updated to include formats which CodeMirror has modes for: `conf`, `css`, `diff`, `patch`, `html`, `htm`, `http`, `js`, `json`, `jsx`, `less`, `md`, `php`, `phtml`, `php3`, `php4`, `php5`, `php7`, `phps`, `scss`, `sass`, `sh`, `bash`, `sql`, `svg`, `xml`, `yml`, `yaml`, `txt`. Props westonruter, georgestephanis, obenland, melchoyce, pixolin, mizejewski, michelleweber, afercia, grahamarmfield, samikeijonen, rianrietveld, iseulde. See #38707. Fixes #12423, #39892. Built from https://develop.svn.wordpress.org/trunk@41376 git-svn-id: http://core.svn.wordpress.org/trunk@41209 1a063a9b-81f0-0310-95a4-ce76da25c4cd		2017-09-13 06:08:47 +00:00
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class-wp-nav-menu-widget.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-archives.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-calendar.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-categories.php	Docs: Add a @staticvar entry for $first_dropdown in WP_Widget_Categories::widget().	2017-07-28 14:25:42 +00:00
class-wp-widget-custom-html.php	Editor: Add CodeMirror-powered code editor with syntax highlighting, linting, and auto-completion.	2017-09-13 06:08:47 +00:00
class-wp-widget-links.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-media-audio.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-media-image.php	Widgets: Expose link URL input field in Image widget to avoid having to open media modal to discover.	2017-08-14 17:56:42 +00:00
class-wp-widget-media-video.php	Media: Upgrade MediaElement.js from 2.22.0 to 4.2.3.	2017-08-01 04:43:51 +00:00
class-wp-widget-media.php	Widgets: Expose link URL input field in Image widget to avoid having to open media modal to discover.	2017-08-14 17:56:42 +00:00
class-wp-widget-meta.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-pages.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-recent-comments.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-recent-posts.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-rss.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-search.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-tag-cloud.php	Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.	2017-07-27 00:41:44 +00:00
class-wp-widget-text.php	Editor: Add CodeMirror-powered code editor with syntax highlighting, linting, and auto-completion.	2017-09-13 06:08:47 +00:00