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Diffstat (limited to 'resources/jquery/jquery.textSelection.js')
| -rw-r--r-- | resources/jquery/jquery.textSelection.js | 573 |
1 files changed, 0 insertions, 573 deletions
diff --git a/resources/jquery/jquery.textSelection.js b/resources/jquery/jquery.textSelection.js deleted file mode 100644 index 2b5a4406..00000000 --- a/resources/jquery/jquery.textSelection.js +++ /dev/null @@ -1,573 +0,0 @@ -/** - * These plugins provide extra functionality for interaction with textareas. - */ -( function ( $ ) { - /*jshint noempty:false */ - - if ( document.selection && document.selection.createRange ) { - // On IE, patch the focus() method to restore the windows' scroll position - // (bug 32241) - $.fn.extend({ - focus: ( function ( jqFocus ) { - return function () { - var $w, state, result; - if ( arguments.length === 0 ) { - $w = $( window ); - state = {top: $w.scrollTop(), left: $w.scrollLeft()}; - result = jqFocus.apply( this, arguments ); - window.scrollTo( state.top, state.left ); - return result; - } - return jqFocus.apply( this, arguments ); - }; - }( $.fn.focus ) ) - }); - } - - $.fn.textSelection = function ( command, options ) { - var fn, - context, - hasIframe, - needSave, - retval; - - /** - * Helper function to get an IE TextRange object for an element - */ - function rangeForElementIE( e ) { - if ( e.nodeName.toLowerCase() === 'input' ) { - return e.createTextRange(); - } else { - var sel = document.body.createTextRange(); - sel.moveToElementText( e ); - return sel; - } - } - - /** - * Helper function for IE for activating the textarea. Called only in the - * IE-specific code paths below; makes use of IE-specific non-standard - * function setActive() if possible to avoid screen flicker. - */ - function activateElementOnIE( element ) { - if ( element.setActive ) { - element.setActive(); // bug 32241: doesn't scroll - } else { - $( element ).focus(); // may scroll (but we patched it above) - } - } - - 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 retval, range, - el = this.get( 0 ); - - if ( $(el).is( ':hidden' ) ) { - // Do nothing - retval = ''; - } else if ( document.selection && document.selection.createRange ) { - activateElementOnIE( el ); - range = document.selection.createRange(); - retval = range.text; - } else if ( el.selectionStart || el.selectionStart === 0 ) { - retval = el.value.substring( el.selectionStart, el.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 beginning and end of a text selection, optionally - * inserting text at the caret when selection is empty. - * - * @fixme document the options parameters - */ - encapsulateSelection: function ( options ) { - return this.each( function () { - var selText, scrollTop, insertText, - isSample, range, range2, range3, startPos, endPos, - pre = options.pre, - post = options.post; - - /** - * 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 { - while ( selText.charAt( selText.length - 1 ) === ' ' ) { - // Exclude ending space char - selText = selText.substring( 0, selText.length - 1 ); - post += ' '; - } - while ( selText.charAt( 0 ) === ' ' ) { - // Exclude prepending space char - selText = selText.substring( 1, selText.length ); - pre = ' ' + pre; - } - } - } - - /** - * Do the splitlines stuff. - * - * Wrap each line of the selected text with pre and post - */ - function doSplitLines( selText, pre, post ) { - var i, - insertText = '', - selTextArr = selText.split( '\n' ); - for ( i = 0; i < selTextArr.length; i++ ) { - insertText += pre + selTextArr[i] + post; - if ( i !== selTextArr.length - 1 ) { - insertText += '\n'; - } - } - return insertText; - } - - isSample = false; - if ( this.style.display === 'none' ) { - // Do nothing - } else if ( document.selection && document.selection.createRange ) { - // IE - - // Note that IE9 will trigger the next section unless we check this first. - // See bug 35201. - - activateElementOnIE( this ); - if ( context ) { - context.fn.restoreCursorAndScrollTop(); - } - if ( options.selectionStart !== undefined ) { - $(this).textSelection( 'setSelection', { 'start': options.selectionStart, 'end': options.selectionEnd } ); - } - - selText = $(this).textSelection( 'getSelection' ); - scrollTop = this.scrollTop; - range = document.selection.createRange(); - - checkSelectedText(); - insertText = pre + selText + post; - if ( options.splitlines ) { - insertText = doSplitLines( selText, pre, post ); - } - if ( options.ownline && range.moveStart ) { - range2 = document.selection.createRange(); - range2.collapse(); - range2.moveStart( 'character', -1 ); - // FIXME: Which check is correct? - if ( range2.text !== '\r' && range2.text !== '\n' && range2.text !== '' ) { - insertText = '\n' + insertText; - pre += '\n'; - } - range3 = document.selection.createRange(); - range3.collapse( false ); - range3.moveEnd( 'character', 1 ); - if ( range3.text !== '\r' && range3.text !== '\n' && range3.text !== '' ) { - insertText += '\n'; - post += '\n'; - } - } - - range.text = insertText; - if ( isSample && options.selectPeri && range.moveStart ) { - range.moveStart( 'character', - post.length - selText.length ); - range.moveEnd( 'character', - post.length ); - } - range.select(); - // Restore the scroll position - this.scrollTop = scrollTop; - } else if ( this.selectionStart || this.selectionStart === 0 ) { - // Mozilla/Opera - - $(this).focus(); - if ( options.selectionStart !== undefined ) { - $(this).textSelection( 'setSelection', { 'start': options.selectionStart, 'end': options.selectionEnd } ); - } - - selText = $(this).textSelection( 'getSelection' ); - startPos = this.selectionStart; - endPos = this.selectionEnd; - scrollTop = this.scrollTop; - checkSelectedText(); - if ( options.selectionStart !== undefined - && endPos - startPos !== options.selectionEnd - options.selectionStart ) - { - // This means there is a difference in the selection range returned by browser and what we passed. - // This happens for Chrome in the case of composite characters. Ref bug #30130 - // Set the startPos to the correct position. - startPos = options.selectionStart; - } - - insertText = pre + selText + post; - if ( options.splitlines ) { - insertText = doSplitLines( selText, pre, post ); - } - if ( options.ownline ) { - if ( startPos !== 0 && this.value.charAt( startPos - 1 ) !== '\n' && this.value.charAt( startPos - 1 ) !== '\r' ) { - insertText = '\n' + insertText; - pre += '\n'; - } - if ( this.value.charAt( endPos ) !== '\n' && this.value.charAt( endPos ) !== '\r' ) { - insertText += '\n'; - post += '\n'; - } - } - this.value = this.value.substring( 0, startPos ) + insertText + - 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 ) { - pre = pre.replace( /\r?\n/g, '\r\n' ); - selText = selText.replace( /\r?\n/g, '\r\n' ); - post = post.replace( /\r?\n/g, '\r\n' ); - } - if ( isSample && options.selectPeri && !options.splitlines ) { - this.selectionStart = startPos + pre.length; - this.selectionEnd = startPos + pre.length + selText.length; - } else { - this.selectionStart = startPos + insertText.length; - this.selectionEnd = this.selectionStart; - } - } - $(this).trigger( 'encapsulateSelection', [ options.pre, options.peri, options.post, options.ownline, - options.replace, options.spitlines ] ); - }); - }, - /** - * 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 necessarily characters) - * in a textarea - * - * Will focus the textarea in some browsers (IE/Opera) - * - * @fixme document the options parameters - */ - getCaretPosition: function ( options ) { - function getCaret( e ) { - var caretPos = 0, - endPos = 0, - preText, rawPreText, periText, - rawPeriText, postText, rawPostText, - // IE Support - preFinished, - periFinished, - postFinished, - // Range containing text in the selection - periRange, - // Range containing text before the selection - preRange, - // Range containing text after the selection - postRange; - - if ( document.selection && document.selection.createRange ) { - // IE doesn't properly report non-selected caret position through - // the selection ranges when textarea isn't focused. This can - // lead to saving a bogus empty selection, which then screws up - // whatever we do later (bug 31847). - activateElementOnIE( e ); - - preFinished = false; - periFinished = false; - postFinished = false; - periRange = document.selection.createRange().duplicate(); - - preRange = rangeForElementIE( e ); - // Move the end where we need it - preRange.setEndPoint( 'EndToStart', periRange ); - - postRange = rangeForElementIE( 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 ) ); - }, - /** - * @fixme document the options parameters - */ - setSelection: function ( options ) { - return this.each( function () { - var selection, length, newLines; - 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 ) { - selection = rangeForElementIE( this ); - length = this.value.length; - // IE doesn't count \n when computing the offset, so we won't either - 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 - * - * @fixme document the options parameters (function body suggests options.force is a boolean, not options itself) - */ - 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 i, j, - nextSpace, - text = e.value.replace( /\r/g, '' ), - caret = $( e ).textSelection( 'getCaretPosition' ), - lineLength = getLineLength( e ), - row = 0, - charInLine = 0, - 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++; - } - } - } - 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 () { - var scroll, range, savedRange, pos, oldScrollTop; - if ( $(this).is( ':hidden' ) ) { - // Do nothing - } else if ( this.selectionStart || this.selectionStart === 0 ) { - // Mozilla - 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. - */ - range = document.body.createTextRange(); - savedRange = document.selection.createRange(); - pos = $(this).textSelection( 'getCaretPosition' ); - 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, or if splitlines==true) - splitlines: false, // If multiple lines are selected, encapsulate each line individually - selectionStart: undefined, // Position to start selection at - selectionEnd: undefined // Position to end selection at. Defaults to start - }, options ); - break; - case 'getCaretPosition': - options = $.extend( { - // Return [start, end] instead of just start - startAndEnd: false - }, options ); - // FIXME: We may not need character position-based functions if we insert markers in the right places - break; - case 'setSelection': - options = $.extend( { - // Position to start selection at - start: undefined, - // Position to end selection at. Defaults to start - end: undefined, - // Element to start selection in (iframe only) - startContainer: undefined, - // Element to end selection in (iframe only). Defaults to startContainer - endContainer: undefined - }, 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; - } - - context = $(this).data( 'wikiEditor-context' ); - hasIframe = context !== undefined && context && context.$iframe !== undefined; - - // IE selection restore voodoo - 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 ) ); |