+++ /dev/null
-/**
- * These plugins provide extra functionality for interaction with textareas.
- */
-( function( $ ) {
-$.fn.textSelection = function( command, options ) {
-var fn = {
-/**
- * Get the contents of the textarea
- */
-getContents: function() {
- return this.val();
-},
-/**
- * Get the currently selected text in this textarea. Will focus the textarea
- * in some browsers (IE/Opera)
- */
-getSelection: function() {
- var e = this.get( 0 );
- var retval = '';
- if ( $(e).is( ':hidden' ) ) {
- // Do nothing
- } else if ( document.selection && document.selection.createRange ) {
- e.focus();
- var range = document.selection.createRange();
- retval = range.text;
- } else if ( e.selectionStart || e.selectionStart == '0' ) {
- retval = e.value.substring( e.selectionStart, e.selectionEnd );
- }
- return retval;
-},
-/**
- * Ported from skins/common/edit.js by Trevor Parscal
- * (c) 2009 Wikimedia Foundation (GPLv2) - http://www.wikimedia.org
- *
- * Inserts text at the begining and end of a text selection, optionally
- * inserting text at the caret when selection is empty.
- */
-encapsulateSelection: function( options ) {
- return this.each( function() {
- /**
- * Check if the selected text is the same as the insert text
- */
- function checkSelectedText() {
- if ( !selText ) {
- selText = options.peri;
- isSample = true;
- } else if ( options.replace ) {
- selText = options.peri;
- } else if ( selText.charAt( selText.length - 1 ) == ' ' ) {
- // Exclude ending space char
- selText = selText.substring(0, selText.length - 1);
- options.post += ' ';
- }
- }
- var isSample = false;
- if ( this.style.display == 'none' ) {
- // Do nothing
- } else if ( this.selectionStart || this.selectionStart == '0' ) {
- // Mozilla/Opera
- $(this).focus();
- var selText = $(this).textSelection( 'getSelection' );
- var startPos = this.selectionStart;
- var endPos = this.selectionEnd;
- var scrollTop = this.scrollTop;
- checkSelectedText();
- if ( options.ownline ) {
- if ( startPos != 0 && this.value.charAt( startPos - 1 ) != "\n" ) {
- options.pre = "\n" + options.pre;
- }
- if ( this.value.charAt( endPos ) != "\n" ) {
- options.post += "\n";
- }
- }
- this.value = this.value.substring( 0, startPos ) + options.pre + selText + options.post +
- this.value.substring( endPos, this.value.length );
- // Setting this.value scrolls the textarea to the top, restore the scroll position
- this.scrollTop = scrollTop;
- if ( window.opera ) {
- options.pre = options.pre.replace( /\r?\n/g, "\r\n" );
- selText = selText.replace( /\r?\n/g, "\r\n" );
- options.post = options.post.replace( /\r?\n/g, "\r\n" );
- }
- if ( isSample && options.selectPeri ) {
- this.selectionStart = startPos + options.pre.length;
- this.selectionEnd = startPos + options.pre.length + selText.length;
- } else {
- this.selectionStart = startPos + options.pre.length + selText.length +
- options.post.length;
- this.selectionEnd = this.selectionStart;
- }
- } else if ( document.selection && document.selection.createRange ) {
- // IE
- $(this).focus();
- if ( context ) {
- context.fn.restoreCursorAndScrollTop();
- }
- var selText = $(this).textSelection( 'getSelection' );
- var scrollTop = this.scrollTop;
- var range = document.selection.createRange();
- if ( options.ownline && range.moveStart ) {
- var range2 = document.selection.createRange();
- range2.collapse();
- range2.moveStart( 'character', -1 );
- // FIXME: Which check is correct?
- if ( range2.text != "\r" && range2.text != "\n" && range2.text != "" ) {
- options.pre = "\n" + options.pre;
- }
- var range3 = document.selection.createRange();
- range3.collapse( false );
- range3.moveEnd( 'character', 1 );
- if ( range3.text != "\r" && range3.text != "\n" && range3.text != "" ) {
- options.post += "\n";
- }
- }
- checkSelectedText();
- range.text = options.pre + selText + options.post;
- if ( isSample && options.selectPeri && range.moveStart ) {
- range.moveStart( 'character', - options.post.length - selText.length );
- range.moveEnd( 'character', - options.post.length );
- }
- range.select();
- // Restore the scroll position
- this.scrollTop = scrollTop;
- }
- $(this).trigger( 'encapsulateSelection', [ options.pre, options.peri, options.post, options.ownline,
- options.replace ] );
- });
-},
-/**
- * Ported from Wikia's LinkSuggest extension
- * https://svn.wikia-code.com/wikia/trunk/extensions/wikia/LinkSuggest
- * Some code copied from
- * http://www.dedestruct.com/2008/03/22/howto-cross-browser-cursor-position-in-textareas/
- *
- * Get the position (in resolution of bytes not nessecarily characters)
- * in a textarea
- */
- getCaretPosition: function( options ) {
- function getCaret( e ) {
- var caretPos = 0, endPos = 0;
- if ( $.browser.msie ) {
- // IE Support
- var preFinished = false;
- var periFinished = false;
- var postFinished = false;
- var preText, rawPreText, periText;
- var rawPeriText, postText, rawPostText;
- // Create range containing text in the selection
- var periRange = document.selection.createRange().duplicate();
- // Create range containing text before the selection
- var preRange = document.body.createTextRange();
- // Select all the text
- preRange.moveToElementText(e);
- // Move the end where we need it
- preRange.setEndPoint("EndToStart", periRange);
- // Create range containing text after the selection
- var postRange = document.body.createTextRange();
- // Select all the text
- postRange.moveToElementText(e);
- // Move the start where we need it
- postRange.setEndPoint("StartToEnd", periRange);
- // Load the text values we need to compare
- preText = rawPreText = preRange.text;
- periText = rawPeriText = periRange.text;
- postText = rawPostText = postRange.text;
- /*
- * Check each range for trimmed newlines by shrinking the range by 1
- * character and seeing if the text property has changed. If it has
- * not changed then we know that IE has trimmed a \r\n from the end.
- */
- do {
- if ( !preFinished ) {
- if ( preRange.compareEndPoints( "StartToEnd", preRange ) == 0 ) {
- preFinished = true;
- } else {
- preRange.moveEnd( "character", -1 );
- if ( preRange.text == preText ) {
- rawPreText += "\r\n";
- } else {
- preFinished = true;
- }
- }
- }
- if ( !periFinished ) {
- if ( periRange.compareEndPoints( "StartToEnd", periRange ) == 0 ) {
- periFinished = true;
- } else {
- periRange.moveEnd( "character", -1 );
- if ( periRange.text == periText ) {
- rawPeriText += "\r\n";
- } else {
- periFinished = true;
- }
- }
- }
- if ( !postFinished ) {
- if ( postRange.compareEndPoints("StartToEnd", postRange) == 0 ) {
- postFinished = true;
- } else {
- postRange.moveEnd( "character", -1 );
- if ( postRange.text == postText ) {
- rawPostText += "\r\n";
- } else {
- postFinished = true;
- }
- }
- }
- } while ( ( !preFinished || !periFinished || !postFinished ) );
- caretPos = rawPreText.replace( /\r\n/g, "\n" ).length;
- endPos = caretPos + rawPeriText.replace( /\r\n/g, "\n" ).length;
- } else if ( e.selectionStart || e.selectionStart == '0' ) {
- // Firefox support
- caretPos = e.selectionStart;
- endPos = e.selectionEnd;
- }
- return options.startAndEnd ? [ caretPos, endPos ] : caretPos;
- }
- return getCaret( this.get( 0 ) );
-},
-setSelection: function( options ) {
- return this.each( function() {
- if ( $(this).is( ':hidden' ) ) {
- // Do nothing
- } else if ( this.selectionStart || this.selectionStart == '0' ) {
- // Opera 9.0 doesn't allow setting selectionStart past
- // selectionEnd; any attempts to do that will be ignored
- // Make sure to set them in the right order
- if ( options.start > this.selectionEnd ) {
- this.selectionEnd = options.end;
- this.selectionStart = options.start;
- } else {
- this.selectionStart = options.start;
- this.selectionEnd = options.end;
- }
- } else if ( document.body.createTextRange ) {
- var selection = document.body.createTextRange();
- selection.moveToElementText( this );
- var length = this.value.length;
- // IE doesn't count \n when computing the offset, so we won't either
- var newLines = this.value.match( /\n/g );
- if ( newLines) length = length - newLines.length;
- selection.moveStart( 'character', options.start );
- selection.moveEnd( 'character', -length + options.end );
-
- // This line can cause an error under certain circumstances (textarea empty, no selection)
- // Silence that error
- try {
- selection.select();
- } catch( e ) { }
- }
- });
-},
-/**
- * Ported from Wikia's LinkSuggest extension
- * https://svn.wikia-code.com/wikia/trunk/extensions/wikia/LinkSuggest
- *
- * Scroll a textarea to the current cursor position. You can set the cursor
- * position with setSelection()
- * @param options boolean Whether to force a scroll even if the caret position
- * is already visible. Defaults to false
- */
-scrollToCaretPosition: function( options ) {
- function getLineLength( e ) {
- return Math.floor( e.scrollWidth / ( $.client.profile().platform == 'linux' ? 7 : 8 ) );
- }
- function getCaretScrollPosition( e ) {
- // FIXME: This functions sucks and is off by a few lines most
- // of the time. It should be replaced by something decent.
- var text = e.value.replace( /\r/g, "" );
- var caret = $( e ).textSelection( 'getCaretPosition' );
- var lineLength = getLineLength( e );
- var row = 0;
- var charInLine = 0;
- var lastSpaceInLine = 0;
- for ( i = 0; i < caret; i++ ) {
- charInLine++;
- if ( text.charAt( i ) == " " ) {
- lastSpaceInLine = charInLine;
- } else if ( text.charAt( i ) == "\n" ) {
- lastSpaceInLine = 0;
- charInLine = 0;
- row++;
- }
- if ( charInLine > lineLength ) {
- if ( lastSpaceInLine > 0 ) {
- charInLine = charInLine - lastSpaceInLine;
- lastSpaceInLine = 0;
- row++;
- }
- }
- }
- var nextSpace = 0;
- for ( j = caret; j < caret + lineLength; j++ ) {
- if (
- text.charAt( j ) == " " ||
- text.charAt( j ) == "\n" ||
- caret == text.length
- ) {
- nextSpace = j;
- break;
- }
- }
- if ( nextSpace > lineLength && caret <= lineLength ) {
- charInLine = caret - lastSpaceInLine;
- row++;
- }
- return ( $.client.profile().platform == 'mac' ? 13 : ( $.client.profile().platform == 'linux' ? 15 : 16 ) ) * row;
- }
- return this.each(function() {
- if ( $(this).is( ':hidden' ) ) {
- // Do nothing
- } else if ( this.selectionStart || this.selectionStart == '0' ) {
- // Mozilla
- var scroll = getCaretScrollPosition( this );
- if ( options.force || scroll < $(this).scrollTop() ||
- scroll > $(this).scrollTop() + $(this).height() )
- $(this).scrollTop( scroll );
- } else if ( document.selection && document.selection.createRange ) {
- // IE / Opera
- /*
- * IE automatically scrolls the selected text to the
- * bottom of the textarea at range.select() time, except
- * if it was already in view and the cursor position
- * wasn't changed, in which case it does nothing. To
- * cover that case, we'll force it to act by moving one
- * character back and forth.
- */
- var range = document.body.createTextRange();
- var savedRange = document.selection.createRange();
- var pos = $(this).textSelection( 'getCaretPosition' );
- var oldScrollTop = this.scrollTop;
- range.moveToElementText( this );
- range.collapse();
- range.move( 'character', pos + 1);
- range.select();
- if ( this.scrollTop != oldScrollTop )
- this.scrollTop += range.offsetTop;
- else if ( options.force ) {
- range.move( 'character', -1 );
- range.select();
- }
- savedRange.select();
- }
- $(this).trigger( 'scrollToPosition' );
- } );
-}
-};
- // Apply defaults
- switch ( command ) {
- //case 'getContents': // no params
- //case 'setContents': // no params with defaults
- //case 'getSelection': // no params
- case 'encapsulateSelection':
- options = $.extend( {
- 'pre': '', // Text to insert before the cursor/selection
- 'peri': '', // Text to insert between pre and post and select afterwards
- 'post': '', // Text to insert after the cursor/selection
- 'ownline': false, // Put the inserted text on a line of its own
- 'replace': false, // If there is a selection, replace it with peri instead of leaving it alone
- 'selectPeri': true // Select the peri text if it was inserted (but not if there was a selection and replace==false)
- }, options );
- break;
- case 'getCaretPosition':
- options = $.extend( {
- 'startAndEnd': false // Return [start, end] instead of just start
- }, options );
- // FIXME: We may not need character position-based functions if we insert markers in the right places
- break;
- case 'setSelection':
- options = $.extend( {
- 'start': undefined, // Position to start selection at
- 'end': undefined, // Position to end selection at. Defaults to start
- 'startContainer': undefined, // Element to start selection in (iframe only)
- 'endContainer': undefined // Element to end selection in (iframe only). Defaults to startContainer
- }, options );
- if ( options.end === undefined )
- options.end = options.start;
- if ( options.endContainer == undefined )
- options.endContainer = options.startContainer;
- // FIXME: We may not need character position-based functions if we insert markers in the right places
- break;
- case 'scrollToCaretPosition':
- options = $.extend( {
- 'force': false // Force a scroll even if the caret position is already visible
- }, options );
- break;
- }
- var context = $(this).data( 'wikiEditor-context' );
- var hasIframe = typeof context !== 'undefined' && context && typeof context.$iframe !== 'undefined';
-
- // IE selection restore voodoo
- var needSave = false;
- if ( hasIframe && context.savedSelection !== null ) {
- context.fn.restoreSelection();
- needSave = true;
- }
- retval = ( hasIframe ? context.fn : fn )[command].call( this, options );
- if ( hasIframe && needSave ) {
- context.fn.saveSelection();
- }
- return retval;
-};
-
-} )( jQuery );
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff