mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/CodeMirror
synced 2024-12-25 03:53:02 +00:00
880c690a10
Add a new $wgCodeMirrorV6 temporary feature flag that when enabled, will load the 'ext.CodeMirror.v6.WikiEditor' module that is built against CodeMirror 6. You can also pass in the ?cm6enable=1 query parameter to force use of CodeMirror 6. This is currently only implemented for the 2010 editor. Due to packaging constraints with CodeMirror 6, we now use Webpack to bundle the files, which are then used by ResourceLoader. This is similar to what is done for Extension:Popups, MobileFrontend, among other extensions. A new generic class CodeMirror can be used on other areas where syntax highlighting is desirable, but not necessarily for editing (i.e. without WikiEditor). This commit merely lays the foundation for CodeMirror 6 and updates WikiEditor to use it. The actual MediaWiki syntax highlighting will come with a future commit. With the new Webpack build, the Gruntfile was removed and the tasks moved to npm commands. Bug: T317243 Change-Id: I2239d2449b2db3b638551f847eb4eff1aafa6276
389 lines
12 KiB
JavaScript
389 lines
12 KiB
JavaScript
function init() {
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var extCodeMirror = require( 'ext.CodeMirror' );
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var codeMirror, $textbox1, realtimePreviewHandler;
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var useCodeMirror = mw.user.options.get( 'usecodemirror' ) > 0;
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var originHooksTextarea = $.valHooks.textarea;
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// define jQuery hook for searching and replacing text using JS if CodeMirror is enabled, see Bug: T108711
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$.valHooks.textarea = {
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get: function ( elem ) {
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if ( elem.id === 'wpTextbox1' && codeMirror ) {
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return codeMirror.doc.getValue();
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} else if ( originHooksTextarea ) {
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return originHooksTextarea.get( elem );
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}
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return elem.value;
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},
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set: function ( elem, value ) {
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if ( elem.id === 'wpTextbox1' && codeMirror ) {
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return codeMirror.doc.setValue( value );
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} else if ( originHooksTextarea ) {
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return originHooksTextarea.set( elem, value );
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}
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elem.value = value;
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}
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};
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// jQuery.textSelection overrides for CodeMirror.
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// See jQuery.textSelection.js for method documentation
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var cmTextSelection = {
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getContents: function () {
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return codeMirror.doc.getValue();
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},
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setContents: function ( content ) {
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codeMirror.doc.setValue( content );
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return this;
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},
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getSelection: function () {
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return codeMirror.doc.getSelection();
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},
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setSelection: function ( options ) {
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codeMirror.doc.setSelection(
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codeMirror.doc.posFromIndex( options.start ),
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codeMirror.doc.posFromIndex( options.end )
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);
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codeMirror.focus();
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return this;
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},
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replaceSelection: function ( value ) {
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codeMirror.doc.replaceSelection( value );
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return this;
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},
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getCaretPosition: function ( options ) {
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var caretPos = codeMirror.doc.indexFromPos( codeMirror.doc.getCursor( true ) ),
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endPos = codeMirror.doc.indexFromPos( codeMirror.doc.getCursor( false ) );
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if ( options.startAndEnd ) {
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return [ caretPos, endPos ];
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}
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return caretPos;
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},
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scrollToCaretPosition: function () {
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codeMirror.scrollIntoView( null );
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return this;
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}
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};
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/**
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* Save CodeMirror enabled pref.
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*
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* @param {boolean} prefValue True, if CodeMirror should be enabled by default, otherwise false.
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*/
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function setCodeEditorPreference( prefValue ) {
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useCodeMirror = prefValue; // Save state for function updateToolbarButton()
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extCodeMirror.setCodeEditorPreference( prefValue );
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}
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/**
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* @return {boolean}
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*/
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function isLineNumbering() {
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// T285660: Backspace related bug on Android browsers as of 2021
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if ( /Android\b/.test( navigator.userAgent ) ) {
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return false;
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}
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var namespaces = mw.config.get( 'wgCodeMirrorLineNumberingNamespaces' );
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// Set to [] to disable everywhere, or null to enable everywhere
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return !namespaces ||
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namespaces.indexOf( mw.config.get( 'wgNamespaceNumber' ) ) !== -1;
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}
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// Keep these modules in sync with MediaWiki\Extension\CodeMirror\Hooks.php
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var codeMirrorCoreModules = [
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'ext.CodeMirror.lib',
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'ext.CodeMirror.mode.mediawiki'
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];
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/**
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* Set the size of the CodeMirror element,
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* and react to changes coming from WikiEditor (including Realtime Preview if its enabled).
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*/
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function setupSizing() {
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var $codeMirror = $( codeMirror.getWrapperElement() );
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// Only add jQuery UI's resizing corner if realtime preview is not enabled,
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// because that feature provides height resizing (even when preview isn't used).
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if ( mw.loader.getState( 'ext.wikiEditor.realtimepreview' ) === 'ready' ) {
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codeMirror.setSize( '100%', $textbox1.parent().height() );
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} else {
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// RL module jquery.ui
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$codeMirror.resizable( {
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handles: 'se',
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resize: function () {
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// Keep at 100% parent width, don't modify height here
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codeMirror.setSize( '100%', null );
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}
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} );
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// Match the height of the textarea.
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codeMirror.setSize( null, $textbox1.height() );
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}
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var $resizableHandle = $codeMirror.find( '.ui-resizable-handle' );
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mw.hook( 'ext.WikiEditor.realtimepreview.enable' ).add( function ( realtimePreview ) {
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// CodeMirror may have been turned on and then off again before realtimepreview is enabled, in which case it will be null.
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if ( !codeMirror ) {
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return;
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}
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// Get rid of the corner resize handle, because realtimepreview provides its own.
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$resizableHandle.hide();
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// Add listener for CodeMirror changes.
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realtimePreviewHandler = realtimePreview.getEventHandler().bind( realtimePreview );
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codeMirror.on( 'change', realtimePreviewHandler );
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// Fix the width and height of the CodeMirror area.
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codeMirror.setSize( '100%', realtimePreview.twoPaneLayout.$element.height() );
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} );
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mw.hook( 'ext.WikiEditor.realtimepreview.resize' ).add( function ( resizingBar ) {
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// CodeMirror may have been turned off after realtimepreview was opened, in which case it will be null.
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if ( !codeMirror ) {
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return;
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}
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// Keep in sync with the height of the pane.
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codeMirror.setSize( '100%', resizingBar.getResizedPane().height() );
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} );
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mw.hook( 'ext.WikiEditor.realtimepreview.disable' ).add( function () {
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// Re-show the corner resize handle.
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$resizableHandle.show();
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// CodeMirror may have been turned off after realtimepreview was opened, in which case it will be null.
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if ( !codeMirror ) {
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return;
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}
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codeMirror.refresh(); // T305333
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codeMirror.off( 'change', realtimePreviewHandler );
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} );
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}
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/**
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* Replaces the default textarea with CodeMirror
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*/
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function enableCodeMirror() {
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var config = mw.config.get( 'extCodeMirrorConfig' );
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mw.loader.using( codeMirrorCoreModules.concat( config.pluginModules ), function () {
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var $codeMirror, cmOptions,
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selectionStart = $textbox1.prop( 'selectionStart' ),
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selectionEnd = $textbox1.prop( 'selectionEnd' ),
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scrollTop = $textbox1.scrollTop(),
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hasFocus = $textbox1.is( ':focus' );
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// If CodeMirror is already loaded or wikEd gadget is enabled, abort. See T178348.
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// FIXME: Would be good to replace the wikEd check with something more generic.
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if ( codeMirror || mw.user.options.get( 'gadget-wikEd' ) > 0 ) {
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return;
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}
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// T174055: Do not redefine the browser history navigation keys (T175378: for PC only)
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CodeMirror.keyMap.pcDefault[ 'Alt-Left' ] = false;
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CodeMirror.keyMap.pcDefault[ 'Alt-Right' ] = false;
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cmOptions = {
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mwConfig: config,
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// styleActiveLine: true, // disabled since Bug: T162204, maybe should be optional
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lineWrapping: true,
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lineNumbers: isLineNumbering(),
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readOnly: $textbox1[ 0 ].readOnly,
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// select mediawiki as text input mode
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mode: 'text/mediawiki',
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extraKeys: {
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Tab: false,
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'Shift-Tab': false,
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// T174514: Move the cursor at the beginning/end of the current wrapped line
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Home: 'goLineLeft',
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End: 'goLineRight'
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},
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inputStyle: 'contenteditable',
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spellcheck: true,
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viewportMargin: Infinity
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};
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cmOptions.matchBrackets = {
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highlightNonMatching: false,
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maxHighlightLineLength: 10000
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};
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codeMirror = CodeMirror.fromTextArea( $textbox1[ 0 ], cmOptions );
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$codeMirror = $( codeMirror.getWrapperElement() );
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codeMirror.on( 'focus', function () {
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$textbox1.triggerHandler( 'focus' );
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} );
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codeMirror.on( 'blur', function () {
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$textbox1.triggerHandler( 'blur' );
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} );
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mw.hook( 'editRecovery.loadEnd' ).add( function ( data ) {
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codeMirror.on( 'change', data.fieldChangeHandler );
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} );
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// Allow textSelection() functions to work with CodeMirror editing field.
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$codeMirror.textSelection( 'register', cmTextSelection );
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// Also override textSelection() functions for the "real" hidden textarea to route to CodeMirror.
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// We unregister this when switching to normal textarea mode.
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$textbox1.textSelection( 'register', cmTextSelection );
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setupSizing( $textbox1, codeMirror );
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if ( hasFocus ) {
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codeMirror.focus();
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}
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codeMirror.doc.setSelection( codeMirror.doc.posFromIndex( selectionEnd ), codeMirror.doc.posFromIndex( selectionStart ) );
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codeMirror.scrollTo( null, scrollTop );
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// HACK: <textarea> font size varies by browser (chrome/FF/IE)
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$codeMirror.css( {
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'font-size': $textbox1.css( 'font-size' ),
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'line-height': $textbox1.css( 'line-height' )
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} );
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// use direction and language of the original textbox
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$codeMirror.attr( {
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dir: $textbox1.attr( 'dir' ),
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lang: $textbox1.attr( 'lang' )
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} );
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$( codeMirror.getInputField() )
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// T259347: Use accesskey of the original textbox
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.attr( 'accesskey', $textbox1.attr( 'accesskey' ) )
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// T194102: UniversalLanguageSelector integration is buggy, disabling it completely
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.addClass( 'noime' );
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if ( mw.user.options.get( 'usecodemirror-colorblind' ) ) {
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$codeMirror.addClass( 'cm-mw-colorblind-colors' );
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}
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// T305333: Reload CodeMirror to fix a cursor caret issue.
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codeMirror.refresh();
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mw.hook( 'ext.CodeMirror.switch' ).fire( true, $codeMirror );
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} );
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}
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/**
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* Updates CodeMirror button on the toolbar according to the current state (on/off)
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*/
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function updateToolbarButton() {
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// eslint-disable-next-line no-jquery/no-global-selector
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var $button = $( '#mw-editbutton-codemirror' );
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$button.toggleClass( 'mw-editbutton-codemirror-active', !!useCodeMirror );
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// WikiEditor2010 OOUI ToggleButtonWidget
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if ( $button.data( 'setActive' ) ) {
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$button.data( 'setActive' )( !!useCodeMirror );
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}
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}
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/**
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* Enables or disables CodeMirror
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*/
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function switchCodeMirror() {
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var selectionObj, selectionStart, selectionEnd, scrollTop, hasFocus, $codeMirror;
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if ( codeMirror ) {
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scrollTop = codeMirror.getScrollInfo().top;
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selectionObj = codeMirror.doc.listSelections()[ 0 ];
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selectionStart = codeMirror.doc.indexFromPos( selectionObj.head );
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selectionEnd = codeMirror.doc.indexFromPos( selectionObj.anchor );
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hasFocus = codeMirror.hasFocus();
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$codeMirror = $( codeMirror.getWrapperElement() );
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setCodeEditorPreference( false );
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$codeMirror.textSelection( 'unregister' );
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$textbox1.textSelection( 'unregister' );
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codeMirror.toTextArea();
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codeMirror = null;
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if ( hasFocus ) {
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$textbox1.trigger( 'focus' );
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}
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$textbox1.prop( 'selectionStart', selectionStart );
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$textbox1.prop( 'selectionEnd', selectionEnd );
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$textbox1.scrollTop( scrollTop );
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mw.hook( 'ext.CodeMirror.switch' ).fire( false, $textbox1 );
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} else {
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enableCodeMirror();
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setCodeEditorPreference( true );
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}
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updateToolbarButton();
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extCodeMirror.logUsage( {
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editor: 'wikitext',
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enabled: codeMirror !== null,
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toggled: true,
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// eslint-disable-next-line no-jquery/no-global-selector,camelcase
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edit_start_ts_ms: parseInt( $( 'input[name="wpStarttime"]' ).val() ) * 1000 || 0
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} );
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}
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/**
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* Adds the CodeMirror button to WikiEditor
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*/
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function addCodeMirrorToWikiEditor() {
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var $codeMirrorButton,
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context = $textbox1.data( 'wikiEditor-context' ),
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toolbar = context && context.modules && context.modules.toolbar;
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// Guard against something having removed WikiEditor (T271457)
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if ( !toolbar ) {
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return;
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}
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$textbox1.wikiEditor(
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'addToToolbar',
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{
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section: 'main',
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groups: {
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codemirror: {
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tools: {
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CodeMirror: {
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label: mw.msg( 'codemirror-toggle-label' ),
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type: 'toggle',
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oouiIcon: 'highlight',
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action: {
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type: 'callback',
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execute: function () {
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switchCodeMirror();
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}
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}
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}
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}
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}
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}
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}
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);
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$codeMirrorButton = toolbar.$toolbar.find( '.tool[rel=CodeMirror]' );
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$codeMirrorButton
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.attr( 'id', 'mw-editbutton-codemirror' );
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if ( useCodeMirror ) {
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enableCodeMirror();
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}
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updateToolbarButton();
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extCodeMirror.logUsage( {
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editor: 'wikitext',
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enabled: useCodeMirror,
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toggled: false,
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// eslint-disable-next-line no-jquery/no-global-selector,camelcase
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edit_start_ts_ms: parseInt( $( 'input[name="wpStarttime"]' ).val() ) * 1000 || 0
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} );
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}
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$( function () {
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// Add CodeMirror button to the enhanced editing toolbar.
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mw.hook( 'wikiEditor.toolbarReady' ).add( function ( $textarea ) {
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$textbox1 = $textarea;
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addCodeMirrorToWikiEditor();
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} );
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} );
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// Synchronize textarea with CodeMirror before leaving
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window.addEventListener( 'beforeunload', function () {
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if ( codeMirror ) {
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codeMirror.save();
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}
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} );
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}
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if ( mw.loader.getState( 'ext.wikiEditor' ) ) {
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init();
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}
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