mediawiki-extensions-CodeEd.../modules/jquery.codeEditor.js
Siddharth VP 8b7b17f9ee Support dark mode in CodeEditor
This uses JS to figure out if the user is currently in dark mode and set
the Ace theme accordingly. This means the theme doesn't reconfigure if
the user or the OS switches dark mode on/off while CodeEditor is open,
but this is better than nothing.

Ace theme 'monokai' is used for dark mode, and 'textmate' is used for
light mode, as before.

Bug: T375982
Change-Id: Icd683ee51cb86b3352d8f23f652b4ce7a6174b4d
2024-09-30 00:26:39 +05:30

881 lines
27 KiB
JavaScript

/* Ace syntax-highlighting code editor extension for wikiEditor */
/* global ace */
/* eslint-disable no-jquery/no-global-selector */
( function () {
$.wikiEditor.modules.codeEditor = {
/**
* Core Requirements
*/
req: [ 'codeEditor' ],
/**
* Configuration
*/
cfg: {
//
},
/**
* API accessible functions
*/
api: {
//
},
/**
* Event handlers
*/
evt: {
//
},
/**
* Internally used functions
*/
fn: {
}
};
$.wikiEditor.extensions.codeEditor = function ( context ) {
var saveAndExtend,
textSelectionFn,
hasErrorsOnSave = false,
selectedLine = 0,
returnFalse = function () {
return false;
},
api = new mw.Api();
// Initialize state
var cookieEnabled = parseInt( mw.cookie.get( 'codeEditor-' + context.instance + '-showInvisibleChars' ), 10 );
context.showInvisibleChars = ( cookieEnabled === 1 );
cookieEnabled = parseInt( mw.cookie.get( 'codeEditor-' + context.instance + '-lineWrappingActive' ), 10 );
context.lineWrappingActive = ( cookieEnabled === 1 );
/*
* Event Handlers
*
* WikiEditor inspects the 'evt' object for event names and uses them if present as additional
* event handlers that fire before the default handling.
* To prevent WikiEditor from running its own handling, handlers should return false.
*
* This is also where we can attach some extra information to the events.
*/
context.evt = Object.assign( context.evt, {
keydown: returnFalse,
change: returnFalse,
delayedChange: returnFalse,
cut: returnFalse,
paste: returnFalse,
ready: returnFalse,
codeEditorSubmit: function () {
var form = this;
context.evt.codeEditorSync();
if ( hasErrorsOnSave ) {
hasErrorsOnSave = false;
OO.ui.confirm( mw.msg( 'codeeditor-save-with-errors' ) ).done( function ( confirmed ) {
if ( confirmed ) {
// Programmatic submit doesn't retrigger this event listener
form.submit();
}
} );
return false;
}
return true;
},
codeEditorSave: function () {
if ( context.codeEditor.getSession().getAnnotations().some( function ( ann ) {
return ann.type === 'error';
} ) ) {
hasErrorsOnSave = true;
}
},
codeEditorSync: function () {
context.$textarea.val( context.$textarea.textSelection( 'getContents' ) );
}
} );
// Make sure to cast '0' to false
context.codeEditorActive = !!Number( mw.user.options.get( 'usecodeeditor' ) );
/**
* Internally used functions
*/
context.fn = Object.assign( context.fn, {
isCodeEditorActive: function () {
return context.codeEditorActive;
},
isShowInvisibleChars: function () {
return context.showInvisibleChars;
},
isLineWrappingActive: function () {
return context.lineWrappingActive;
},
changeCookieValue: function ( cookieName, value ) {
mw.cookie.set(
'codeEditor-' + context.instance + '-' + cookieName,
value
);
},
aceGotoLineColumn: function () {
OO.ui.prompt( mw.msg( 'codeeditor-gotoline-prompt' ), {
textInput: { placeholder: mw.msg( 'codeeditor-gotoline-placeholder' ) }
} ).done( function ( result ) {
if ( !result ) {
return;
}
var matches = result.split( ':' );
var line = 0;
var column = 0;
if ( matches.length > 0 ) {
line = +matches[ 0 ];
if ( isNaN( line ) ) {
return;
} else {
// Lines are zero-indexed
line--;
}
}
if ( matches.length > 1 ) {
column = +matches[ 1 ];
if ( isNaN( column ) ) {
column = 0;
}
}
context.codeEditor.navigateTo( line, column );
// Scroll up a bit to give some context
context.codeEditor.scrollToRow( line - 4 );
} );
},
setupCodeEditorToolbar: function () {
var toggleEditor = function ( ctx ) {
ctx.codeEditorActive = !ctx.codeEditorActive;
ctx.fn.setCodeEditorPreference( ctx.codeEditorActive );
ctx.fn.updateCodeEditorToolbarButton();
if ( ctx.codeEditorActive ) {
// set it back up!
ctx.fn.setupCodeEditor();
} else {
ctx.fn.disableCodeEditor();
}
};
var toggleInvisibleChars = function ( ctx ) {
ctx.showInvisibleChars = !ctx.showInvisibleChars;
ctx.fn.changeCookieValue( 'showInvisibleChars', ctx.showInvisibleChars ? 1 : 0 );
ctx.fn.updateInvisibleCharsButton();
ctx.codeEditor.setShowInvisibles( ctx.showInvisibleChars );
};
var toggleSearchReplace = function ( ctx ) {
var searchBox = ctx.codeEditor.searchBox;
if ( searchBox && $( searchBox.element ).css( 'display' ) !== 'none' ) {
searchBox.hide();
} else {
ctx.codeEditor.execCommand(
ctx.codeEditor.getReadOnly() ? 'find' : 'replace'
);
}
};
var toggleLineWrapping = function ( ctx ) {
ctx.lineWrappingActive = !ctx.lineWrappingActive;
ctx.fn.changeCookieValue( 'lineWrappingActive', ctx.lineWrappingActive ? 1 : 0 );
ctx.fn.updateLineWrappingButton();
ctx.codeEditor.getSession().setUseWrapMode( ctx.lineWrappingActive );
};
var indent = function ( ctx ) {
ctx.codeEditor.execCommand( 'indent' );
};
var outdent = function ( ctx ) {
ctx.codeEditor.execCommand( 'outdent' );
};
var gotoLine = function ( ctx ) {
ctx.codeEditor.execCommand( 'gotolinecolumn' );
};
context.api.addToToolbar( context, {
section: 'main',
groups: {
'codeeditor-main': {
tools: {
codeEditor: {
label: mw.msg( 'codeeditor-toolbar-toggle' ),
type: 'toggle',
oouiIcon: 'markup',
action: {
type: 'callback',
execute: toggleEditor
}
}
}
},
'codeeditor-format': {
tools: {
indent: {
label: mw.msg( 'codeeditor-indent' ),
type: 'button',
oouiIcon: 'indent',
action: {
type: 'callback',
execute: indent
}
},
outdent: {
label: mw.msg( 'codeeditor-outdent' ),
type: 'button',
oouiIcon: 'outdent',
action: {
type: 'callback',
execute: outdent
}
}
}
},
'codeeditor-style': {
tools: {
invisibleChars: {
label: mw.msg( 'codeeditor-invisibleChars-toggle' ),
type: 'toggle',
oouiIcon: 'pilcrow',
action: {
type: 'callback',
execute: toggleInvisibleChars
}
},
lineWrapping: {
label: mw.msg( 'codeeditor-lineWrapping-toggle' ),
type: 'toggle',
oouiIcon: 'wrapping',
action: {
type: 'callback',
execute: toggleLineWrapping
}
},
gotoLine: {
label: mw.msg( 'codeeditor-gotoline' ),
type: 'button',
oouiIcon: 'gotoLine',
action: {
type: 'callback',
execute: gotoLine
}
},
toggleSearchReplace: {
label: mw.msg( 'codeeditor-searchReplace-toggle' ),
type: 'button',
oouiIcon: 'articleSearch',
action: {
type: 'callback',
execute: toggleSearchReplace
}
}
}
}
}
} );
context.fn.updateCodeEditorToolbarButton();
context.fn.updateInvisibleCharsButton();
context.fn.updateLineWrappingButton();
$( '.group-codeeditor-style' ).prependTo( '.section-main' );
$( '.group-codeeditor-format' ).prependTo( '.section-main' );
$( '.group-codeeditor-main' ).prependTo( '.section-main' );
},
updateButtonIcon: function ( targetName, iconFn ) {
var target = '.tool[rel=' + targetName + ']',
$button = context.modules.toolbar.$toolbar.find( target );
$button.data( 'setActive' )( iconFn() );
},
updateCodeEditorToolbarButton: function () {
context.fn.updateButtonIcon( 'codeEditor', context.fn.isCodeEditorActive );
},
updateInvisibleCharsButton: function () {
context.fn.updateButtonIcon( 'invisibleChars', context.fn.isShowInvisibleChars );
},
updateLineWrappingButton: function () {
context.fn.updateButtonIcon( 'lineWrapping', context.fn.isLineWrappingActive );
},
setCodeEditorPreference: function ( prefValue ) {
// Abort any previous request
api.abort();
api.saveOption( 'usecodeeditor', prefValue ? 1 : 0 )
.fail( function ( code, result ) {
if ( code === 'http' && result.textStatus === 'abort' ) {
// Request was aborted. Ignore error
return;
}
if ( code === 'notloggedin' ) {
// Expected for non-registered users
return;
}
var message = 'Failed to set code editor preference: ' + code;
if ( result.error && result.error.info ) {
message += '\n' + result.error.info;
}
mw.log.warn( message );
} );
},
/**
* Sets up the iframe in place of the textarea to allow more advanced operations
*/
setupCodeEditor: function () {
var $box = context.$textarea;
var lang = mw.config.get( 'wgCodeEditorCurrentLanguage' );
var basePath = mw.config.get( 'wgExtensionAssetsPath', '' );
if ( basePath.slice( 0, 2 ) === '//' ) {
// ACE uses web workers, which have importScripts, which don't like relative links.
// This is a problem only when the assets are on another server, so this rewrite should suffice
// Protocol relative
basePath = window.location.protocol + basePath;
}
ace.config.set( 'basePath', basePath + '/CodeEditor/modules/lib/ace' );
if ( lang ) {
// Ace doesn't like replacing a textarea directly.
// We'll stub this out to sit on top of it...
// line-height is needed to compensate for oddity in WikiEditor extension, which zeroes the line-height on a parent container
// eslint-disable-next-line no-jquery/no-parse-html-literal
var container = context.$codeEditorContainer = $( '<div style="position: relative"><div class="editor" style="line-height: 1.5em; top: 0; left: 0; right: 0; bottom: 0; position: absolute;"></div></div>' ).insertAfter( $box );
var editdiv = container.find( '.editor' );
$box.css( 'display', 'none' );
container.height( $box.height() );
// Non-lazy loaded dependencies: Enable code completion
ace.require( 'ace/ext/language_tools' );
// Load the editor now
context.codeEditor = ace.edit( editdiv[ 0 ] );
context.codeEditor.getSession().setValue( $box.val() );
$box.textSelection( 'register', textSelectionFn );
// Disable some annoying keybindings
context.codeEditor.commands.bindKeys( {
'Ctrl-T': null,
'Ctrl-L': null,
'Command-L': null
} );
context.codeEditor.setReadOnly( $box.prop( 'readonly' ) );
context.codeEditor.setShowInvisibles( context.showInvisibleChars );
var htmlClasses = document.documentElement.classList;
var inDarkMode = htmlClasses.contains( 'skin-theme-clientpref-night' ) || (
htmlClasses.contains( 'skin-theme-clientpref-os' ) &&
window.matchMedia && window.matchMedia( '(prefers-color-scheme: dark)' ).matches
);
// The options to enable
context.codeEditor.setOptions( {
enableBasicAutocompletion: true,
enableSnippets: true,
theme: inDarkMode ? 'ace/theme/monokai' : 'ace/theme/textmate'
} );
context.codeEditor.commands.addCommand( {
name: 'gotolinecolumn',
bindKey: { mac: 'Command-Shift-L', windows: 'Ctrl-Alt-L' },
exec: context.fn.aceGotoLineColumn,
readOnly: true
} );
$box.closest( 'form' )
.on( 'submit', context.evt.codeEditorSubmit )
.find( '#wpSave' ).on( 'click', context.evt.codeEditorSave );
var session = context.codeEditor.getSession();
// Use proper tabs
session.setUseSoftTabs( false );
session.setUseWrapMode( context.lineWrappingActive );
// Configure any workers
session.on( 'changeMode', function ( e, session2 ) {
// eslint-disable-next-line no-jquery/variable-pattern
var mode = session2.getMode().$id;
if ( mode === 'ace/mode/javascript' ) {
session2.$worker.send( 'changeOptions', [ {
maxerr: 1000
} ] );
}
} );
mw.hook( 'codeEditor.configure' ).fire( session );
// Add an Ace change handler to pass changes to Edit Recovery.
mw.hook( 'editRecovery.loadEnd' ).add( function ( data ) {
session.on( 'change', data.fieldChangeHandler );
} );
ace.config.loadModule( 'ace/ext/modelist', function ( modelist ) {
if ( !modelist || !modelist.modesByName[ lang ] ) {
lang = 'text';
}
session.setMode( 'ace/mode/' + lang );
} );
// Use jQuery UI resizable() so that users can make the box taller
container.resizable( {
handles: 's',
minHeight: $box.height(),
resize: function () {
context.codeEditor.resize();
}
} );
$( '.wikiEditor-ui-toolbar' ).addClass( 'codeEditor-ui-toolbar' );
if ( selectedLine > 0 ) {
// Line numbers in CodeEditor are zero-based
context.codeEditor.navigateTo( selectedLine - 1, 0 );
// Scroll up a bit to give some context
context.codeEditor.scrollToRow( selectedLine - 4 );
}
context.fn.setupStatusBar();
document.body.classList.remove( 'codeeditor-loading' );
// Let modules know we're ready to start working with the content
context.fn.trigger( 'ready' );
}
},
/**
* Turn off the code editor view and return to the plain textarea.
* May be needed by some folks with funky browsers, or just to compare.
*/
disableCodeEditor: function () {
// Kills it!
context.$textarea.closest( 'form' )
.off( 'submit', context.evt.codeEditorSubmit )
.find( '#wpSave' ).off( 'click', context.evt.codeEditorSave );
// Save contents
context.$textarea.textSelection( 'unregister' );
context.$textarea.val( textSelectionFn.getContents() );
// @todo fetch cursor, scroll position
// Drop the fancy editor widget...
context.fn.removeStatusBar();
context.$codeEditorContainer.remove();
context.$codeEditorContainer = undefined;
context.codeEditor = undefined;
// Restore textarea
context.$textarea.show();
// Restore toolbar
$( '.wikiEditor-ui-toolbar' ).removeClass( 'codeEditor-ui-toolbar' );
// @todo restore cursor, scroll position
},
/**
* Start monitoring the fragment of the current window for hash change
* events. If the hash is already set, handle it as a new event.
*/
codeEditorMonitorFragment: function () {
function onHashChange() {
var regexp = /#mw-ce-l(\d+)/;
var result = regexp.exec( window.location.hash );
if ( result === null ) {
return;
}
selectedLine = parseInt( result[ 1 ], 10 );
if ( context.codeEditor && selectedLine > 0 ) {
// Line numbers in CodeEditor are zero-based
context.codeEditor.navigateTo( selectedLine - 1, 0 );
// Scroll up a bit to give some context
context.codeEditor.scrollToRow( selectedLine - 4 );
}
}
onHashChange();
$( window ).on( 'hashchange', onHashChange );
},
/**
* This creates a Statusbar, that allows you to see a count of the
* errors, warnings and the warning of the current line, as well as
* the position of the cursor.
*/
setupStatusBar: function () {
var shouldUpdateAnnotations,
shouldUpdateSelection,
shouldUpdateLineInfo,
nextAnnotation,
delayedUpdate,
editor = context.codeEditor,
lang = ace.require( 'ace/lib/lang' ),
$errors = $( '<span>' ).addClass( 'codeEditor-status-worker-cell ace_gutter-cell ace_error' ).text( '0' ),
$warnings = $( '<span>' ).addClass( 'codeEditor-status-worker-cell ace_gutter-cell ace_warning' ).text( '0' ),
$infos = $( '<span>' ).addClass( 'codeEditor-status-worker-cell ace_gutter-cell ace_info' ).text( '0' ),
$message = $( '<div>' ).addClass( 'codeEditor-status-message' ),
$lineAndMode = $( '<div>' ).addClass( 'codeEditor-status-line' ),
$workerStatus = $( '<div>' )
.addClass( 'codeEditor-status-worker' )
.attr( 'title', mw.msg( 'codeeditor-next-annotation' ) )
.append( $errors )
.append( $warnings )
.append( $infos );
context.$statusBar = $( '<div>' )
.addClass( 'codeEditor-status' )
.append( $workerStatus )
.append( $message )
.append( $lineAndMode );
/* Help function to concatenate strings with different separators */
function addToStatus( status, str, separator ) {
if ( str ) {
status.push( str, separator || '|' );
}
}
/**
* Update all the information in the status bar
*/
function updateStatusBar() {
var errors = 0,
warnings = 0,
infos = 0,
distance,
shortestDistance = Infinity,
closestAnnotation,
currentLine = editor.selection.lead.row,
annotations = editor.getSession().getAnnotations(),
closestType;
// Reset the next annotation
nextAnnotation = null;
for ( var i = 0; i < annotations.length; i++ ) {
var annotation = annotations[ i ];
distance = Math.abs( currentLine - annotation.row );
if ( distance < shortestDistance ) {
shortestDistance = distance;
closestAnnotation = annotation;
}
if ( nextAnnotation === null && annotation.row > currentLine ) {
nextAnnotation = annotation;
}
switch ( annotations[ i ].type ) {
case 'error':
errors++;
break;
case 'warning':
warnings++;
break;
case 'info':
infos++;
break;
}
}
// Wrap around to the beginning for nextAnnotation
if ( nextAnnotation === null && annotations.length > 0 ) {
nextAnnotation = annotations[ 0 ];
}
// Update the annotation counts
if ( shouldUpdateAnnotations ) {
$errors.text( errors );
$warnings.text( warnings );
$infos.text( infos );
}
// Show the message of the current line, if we have not already done so
if ( closestAnnotation &&
currentLine === closestAnnotation.row &&
closestAnnotation !== $message.data( 'annotation' ) ) {
$message.data( 'annotation', closestAnnotation );
closestType =
closestAnnotation.type.charAt( 0 ).toUpperCase() +
closestAnnotation.type.slice( 1 );
$message.text( closestType + ': ' + closestAnnotation.text );
} else if ( $message.data( 'annotation' ) !== null &&
( !closestAnnotation || currentLine !== closestAnnotation.row ) ) {
// If we are on a different line without an annotation, then blank the message
$message.data( 'annotation', null );
$message.text( '' );
}
// The cursor position has changed
if ( shouldUpdateSelection || shouldUpdateLineInfo ) {
// Adapted from Ajax.org's ace/ext/statusbar module
var status = [];
if ( editor.$vimModeHandler ) {
addToStatus( status, editor.$vimModeHandler.getStatusText() );
} else if ( editor.commands.recording ) {
addToStatus( status, 'REC' );
}
var c = editor.selection.lead;
addToStatus( status, ( c.row + 1 ) + ':' + c.column, '' );
if ( !editor.selection.isEmpty() ) {
var r = editor.getSelectionRange();
addToStatus( status, '(' + ( r.end.row - r.start.row ) + ':' + ( r.end.column - r.start.column ) + ')' );
}
status.pop();
$lineAndMode.text( status.join( '' ) );
}
shouldUpdateLineInfo = shouldUpdateSelection = shouldUpdateAnnotations = false;
}
// Function to delay/debounce updates for the StatusBar
delayedUpdate = lang.delayedCall( function () {
updateStatusBar( editor );
} );
/**
* Click handler that allows you to skip to the next annotation
*/
$workerStatus.on( 'click', function ( e ) {
if ( nextAnnotation ) {
context.codeEditor.navigateTo( nextAnnotation.row, nextAnnotation.column );
// Scroll up a bit to give some context
context.codeEditor.scrollToRow( nextAnnotation.row - 3 );
e.preventDefault();
}
} );
editor.getSession().on( 'changeAnnotation', function () {
shouldUpdateAnnotations = true;
delayedUpdate.schedule( 100 );
} );
editor.on( 'changeStatus', function () {
shouldUpdateLineInfo = true;
delayedUpdate.schedule( 100 );
} );
editor.on( 'changeSelection', function () {
shouldUpdateSelection = true;
delayedUpdate.schedule( 100 );
} );
// Force update
shouldUpdateLineInfo = shouldUpdateSelection = shouldUpdateAnnotations = true;
updateStatusBar( editor );
context.$statusBar.insertAfter( $( '.wikiEditor-ui-view-wikitext .wikiEditor-ui-bottom' ) );
},
removeStatusBar: function () {
context.codeEditor.getSession().removeListener( 'changeAnnotation' );
context.codeEditor.removeListener( 'changeSelection' );
context.codeEditor.removeListener( 'changeStatus' );
context.nextAnnotation = null;
context.$statusBar = null;
$( '.codeEditor-status' ).remove();
}
} );
/**
* Override the base functions in a way that lets
* us fall back to the originals when we turn off.
*
* @param {Object} base
* @param {Object} extended
*/
saveAndExtend = function ( base, extended ) {
// eslint-disable-next-line no-jquery/no-map-util
$.map( extended, function ( func, name ) {
if ( name in base ) {
var orig = base[ name ];
base[ name ] = function () {
if ( context.codeEditorActive ) {
return func.apply( this, arguments );
}
if ( orig ) {
return orig.apply( this, arguments );
}
throw new Error( 'CodeEditor: no original function to call for ' + name );
};
} else {
base[ name ] = func;
}
} );
};
saveAndExtend( context.fn, {
saveSelection: function () {
mw.log( 'codeEditor stub function saveSelection called' );
},
restoreSelection: function () {
mw.log( 'codeEditor stub function restoreSelection called' );
},
/**
* Scroll an element to the top of the iframe
*/
scrollToTop: function () {
mw.log( 'codeEditor stub function scrollToTop called' );
}
} );
/**
* Compatibility with the $.textSelection jQuery plug-in. When the iframe is in use, these functions provide
* equivalant functionality to the otherwise textarea-based functionality.
*/
textSelectionFn = {
/* Needed for search/replace */
getContents: function () {
return context.codeEditor.getSession().getValue();
},
setContents: function ( newContents ) {
context.codeEditor.getSession().setValue( newContents );
},
/**
* Gets the currently selected text in the content
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
*
* @return {string}
*/
getSelection: function () {
return context.codeEditor.getCopyText();
},
/**
* Replace the current selection with the given text.
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
*
* @param {string} text
*/
replaceSelection: function ( text ) {
context.codeEditor.insert( text );
},
/**
* Inserts text at the begining and end of a text selection, optionally inserting text at the caret when
* selection is empty.
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
*
* @param {Object} options
* @return {jQuery}
*/
encapsulateSelection: function ( options ) {
// Does not yet handle 'ownline', 'splitlines' option
var sel = context.codeEditor.getSelection();
var range = sel.getRange();
var selText = textSelectionFn.getSelection();
var isSample = false;
if ( !selText ) {
selText = options.peri;
isSample = true;
} else if ( options.replace ) {
selText = options.peri;
}
var text = options.pre;
text += selText;
text += options.post;
context.codeEditor.insert( text );
if ( isSample && options.selectPeri && !options.splitlines ) {
// May esplode if anything has newlines, be warned. :)
range.setStart( range.start.row, range.start.column + options.pre.length );
range.setEnd( range.start.row, range.start.column + selText.length );
sel.setSelectionRange( range );
}
return context.$textarea;
},
/**
* Gets the position (in resolution of bytes not nessecarily characters) in a textarea
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
*
* @param {Object} options
* @param {Object} [options.startAndEnd=false] Return range of the selection rather than just start
* @return {number|number[]} If options.startAndEnd is true, returns an array holding the start and
* end of the selection, else returns only the start of the selection as a single number.
*/
getCaretPosition: function ( options ) {
var selection = context.codeEditor.getSelection(),
range = selection.getRange(),
doc = context.codeEditor.getSession().getDocument(),
startOffset = doc.positionToIndex( range.start );
if ( options.startAndEnd ) {
var endOffset = doc.positionToIndex( range.end );
return [ startOffset, endOffset ];
}
return startOffset;
},
/**
* Sets the selection of the content
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
*
* @param {Object} options
* @return {jQuery}
*/
setSelection: function ( options ) {
// Ace stores positions for ranges as row/column pairs.
// To convert from character offsets, we'll need to iterate through the document
var doc = context.codeEditor.getSession().getDocument();
var lines = doc.getAllLines();
var offsetToPos = function ( offset ) {
var row, col, pos;
row = 0;
col = 0;
pos = 0;
while ( row < lines.length && pos + lines[ row ].length < offset ) {
pos += lines[ row ].length;
pos++; // for the newline
row++;
}
col = offset - pos;
return { row: row, column: col };
};
var start = offsetToPos( options.start );
var end = offsetToPos( options.end );
var sel = context.codeEditor.getSelection();
var range = sel.getRange();
range.setStart( start.row, start.column );
range.setEnd( end.row, end.column );
sel.setSelectionRange( range );
return context.$textarea;
},
/**
* Scroll a textarea to the current cursor position. You can set the cursor position with setSelection()
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
*
* @return {jQuery}
*/
scrollToCaretPosition: function () {
mw.log( 'codeEditor stub function scrollToCaretPosition called' );
return context.$textarea;
}
};
/* Setup the editor */
context.fn.setupCodeEditorToolbar();
if ( context.codeEditorActive ) {
context.fn.setupCodeEditor();
}
};
}() );