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.


git-svn-id: https://develop.svn.wordpress.org/trunk@41376 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Weston Ruter
2017-09-13 06:07:48 +00:00
parent 1b7475645a
commit dbace684e2
32 changed files with 37795 additions and 348 deletions

View File

@@ -247,6 +247,26 @@ if ( ! IS_PROFILE_PAGE ) {
<td><label for="rich_editing"><input name="rich_editing" type="checkbox" id="rich_editing" value="false" <?php if ( ! empty( $profileuser->rich_editing ) ) checked( 'false', $profileuser->rich_editing ); ?> /> <?php _e( 'Disable the visual editor when writing' ); ?></label></td>
</tr>
<?php endif; ?>
<?php
$show_syntax_highlighting_preference = (
// For Custom HTML widget and Additional CSS in Customizer.
user_can( $profileuser, 'edit_theme_options' )
||
// Edit plugins.
user_can( $profileuser, 'edit_plugins' )
||
// Edit themes.
user_can( $profileuser, 'edit_themes' )
);
?>
<?php if ( $show_syntax_highlighting_preference ) : ?>
<tr class="user-syntax-highlighting-wrap">
<th scope="row"><?php _e( 'Syntax Highlighting' ); ?></th>
<td>
<label for="syntax_highlighting"><input name="syntax_highlighting" type="checkbox" id="syntax_highlighting" value="false" <?php if ( ! empty( $profileuser->syntax_highlighting ) ) checked( 'false', $profileuser->syntax_highlighting ); ?> /> <?php _e( 'Disable syntax highlighting when editing code' ); ?></label>
</td>
</tr>
<?php endif; ?>
<?php if ( count($_wp_admin_css_colors) > 1 && has_action('admin_color_scheme_picker') ) : ?>
<tr class="user-admin-color-wrap">
<th scope="row"><?php _e('Admin Color Scheme')?></th>