* These plugins provide extra functionality for interaction with textareas.
*/
( function ( $ ) {
- if ( document.selection && document.selection.createRange ) {
- // On IE, patch the focus() method to restore the windows' scroll position
- // (T34241)
- $.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,
alternateFn,
retval;
- /**
- * Helper function to get an IE TextRange object for an element
- *
- * @param {HTMLElement} element
- * @return {TextRange}
- */
- function rangeForElementIE( element ) {
- var sel;
- if ( element.nodeName.toLowerCase() === 'input' ) {
- return element.createTextRange();
- } else {
- sel = document.body.createTextRange();
- sel.moveToElementText( element );
- 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.
- *
- * @param {HTMLElement} element
- */
- function activateElementOnIE( element ) {
- if ( element.setActive ) {
- element.setActive(); // T34241: doesn't scroll
- } else {
- $( element ).focus(); // may scroll (but we patched it above)
- }
- }
-
fn = {
/**
* Get the contents of the textarea
this.val( content );
},
/**
- * Get the currently selected text in this textarea. Will focus the textarea
- * in some browsers (IE/Opera)
+ * Get the currently selected text in this textarea.
*
* @return {string}
*/
getSelection: function () {
- var retval, range,
+ var retval,
el = this.get( 0 );
if ( !el || $( el ).is( ':hidden' ) ) {
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 );
}
encapsulateSelection: function ( options ) {
return this.each( function () {
var selText, scrollTop, insertText,
- isSample, range, range2, range3, startPos, endPos,
+ isSample, startPos, endPos,
pre = options.pre,
post = options.post;
isSample = false;
// Do nothing if display none
if ( this.style.display !== 'none' ) {
- if ( document.selection && document.selection.createRange ) {
- // IE
-
- // Note that IE9 will trigger the next section unless we check this first.
- // See bug T37201.
-
- activateElementOnIE( this );
- 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
-
+ if ( this.selectionStart || this.selectionStart === 0 ) {
$( this ).focus();
if ( options.selectionStart !== undefined ) {
$( this ).textSelection( 'setSelection', { start: options.selectionStart, end: options.selectionEnd } );
/**
* 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)
- *
* @param {Object} options Options
* FIXME document the options parameters
* @return {number} Position
getCaretPosition: function ( options ) {
function getCaret( e ) {
var caretPos = 0,
- endPos = 0,
- preText, rawPreText, periText,
- rawPeriText, postText,
- // 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 ( e && 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 (T33847).
- activateElementOnIE( e );
-
- preFinished = false;
- periFinished = false;
- postFinished = false;
- periRange = document.selection.createRange().duplicate();
+ endPos = 0;
- 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 = 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 ) {
- 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 && ( e.selectionStart || e.selectionStart === 0 ) ) {
- // Firefox support
+ if ( e && ( e.selectionStart || e.selectionStart === 0 ) ) {
caretPos = e.selectionStart;
endPos = e.selectionEnd;
}
*/
setSelection: function ( options ) {
return this.each( function () {
- var selection, length, newLines;
// Do nothing if hidden
if ( !$( this ).is( ':hidden' ) ) {
if ( this.selectionStart || this.selectionStart === 0 ) {
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 ) { }
}
}
} );
return ( $.client.profile().platform === 'mac' ? 13 : ( $.client.profile().platform === 'linux' ? 15 : 16 ) ) * row;
}
return this.each( function () {
- var scroll, range, savedRange, pos, oldScrollTop;
+ var scroll;
// Do nothing if hidden
if ( !$( this ).is( ':hidden' ) ) {
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' );
dépôts / lhc / web / wiklou.git / commitdiff