mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/CodeMirror
synced 2024-11-15 10:19:27 +00:00
288 lines
8.6 KiB
JavaScript
288 lines
8.6 KiB
JavaScript
( function ( mw, $ ) {
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var useCodeMirror, codeMirror, api, originHooksTextarea, cmTextSelection,
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enableContentEditable = true;
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if ( mw.config.get( 'wgCodeEditorCurrentLanguage' ) ) { // If the CodeEditor is used then just exit;
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return;
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}
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// Exit if WikiEditor is disabled
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// usebetatoolbar can be the string "0" if the user disabled the preference - Bug T54542#555387
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if ( !( mw.loader.getState( 'ext.wikiEditor' ) && mw.user.options.get( 'usebetatoolbar' ) > 0 ) ) {
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return;
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}
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useCodeMirror = mw.user.options.get( 'usecodemirror' ) > 0;
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api = new mw.Api();
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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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// Disable spellchecking for Firefox users on non-Mac systems (Bug T95104)
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if ( navigator.userAgent.indexOf( 'Firefox' ) > -1 &&
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navigator.userAgent.indexOf( 'Mac' ) === -1
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) {
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enableContentEditable = false;
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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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// jQuery.textSelection overrides for CodeMirror.
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// See jQuery.textSelection.js for method documentation
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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.focus();
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codeMirror.doc.setSelection( codeMirror.doc.posFromIndex( options.start ), codeMirror.doc.posFromIndex( options.end ) );
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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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if ( mw.user.isAnon() ) { // Skip it for anon users
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return;
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}
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api.saveOption( 'usecodemirror', prefValue ? 1 : 0 );
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mw.user.options.set( 'usecodemirror', prefValue ? 1 : 0 );
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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( config.pluginModules, function () {
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var $codeMirror,
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$textbox1 = $( '#wpTextbox1' ),
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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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// 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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codeMirror = CodeMirror.fromTextArea( $textbox1[ 0 ], {
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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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readOnly: $textbox1[ 0 ].readOnly,
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// select mediawiki as text input mode
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mode: 'text/mediawiki',
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extraKeys: {
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Tab: false,
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'Shift-Tab': false,
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// T174514: Move the cursor at the beginning/end of the current wrapped line
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Home: 'goLineLeft',
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End: 'goLineRight'
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},
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inputStyle: enableContentEditable ? 'contenteditable' : 'textarea',
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spellcheck: enableContentEditable,
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viewportMargin: Infinity
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} );
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$codeMirror = $( codeMirror.getWrapperElement() );
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// Allow textSelection() functions to work with CodeMirror editing field.
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$codeMirror.textSelection( 'register', cmTextSelection );
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// Also override textSelection() functions for the "real" hidden textarea to route to
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// CodeMirror. We unregister this when switching to normal textarea mode.
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$textbox1.textSelection( 'register', cmTextSelection );
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$codeMirror.resizable( {
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handles: 'se',
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resize: function ( event, ui ) {
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ui.size.width = ui.originalSize.width;
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}
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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: $textbox1.attr( 'lang' )
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} );
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// T194102: UniversalLanguageSelector integration is buggy, disabling it completely
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$( codeMirror.getInputField() ).addClass( 'noime' );
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// set the height of the textarea
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codeMirror.setSize( null, $textbox1.height() );
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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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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, $codeMirror,
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$textbox1 = $( '#wpTextbox1' );
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if ( codeMirror ) {
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scrollTop = codeMirror.getScrollInfo().top;
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selectionObj = codeMirror.doc.listSelections()[ 0 ];
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selectionStart = codeMirror.doc.indexFromPos( selectionObj.head );
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selectionEnd = codeMirror.doc.indexFromPos( selectionObj.anchor );
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hasFocus = codeMirror.hasFocus();
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$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.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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} 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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}
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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 $codeMirrorButton;
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$( '#wpTextbox1' ).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 = $( '#wpTextbox1' ).data( 'wikiEditor-context' ).modules.toolbar.$toolbar.find( '.tool[rel=CodeMirror]' );
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$codeMirrorButton
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.attr( 'id', 'mw-editbutton-codemirror' );
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updateToolbarButton();
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}
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/**
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* Adds CodeMirror button to the toolbar
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*/
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function addToolbarButton() {
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// They are using WikiEditor
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mw.loader.using( 'ext.wikiEditor', function () {
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// Add CodeMirror button to the enhanced editing toolbar.
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$( addCodeMirrorToWikiEditor );
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} );
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}
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// If view is in edit mode, add the button to the toolbar.
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if ( $( '#wpTextbox1' ).length ) {
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addToolbarButton();
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}
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// enable CodeMirror
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if ( useCodeMirror ) {
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$( '#wpTextbox1' ).on( 'wikiEditor-toolbar-doneInitialSections', enableCodeMirror.bind( this ) );
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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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}( mediaWiki, jQuery ) );
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