mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/WikiEditor
synced 2024-11-28 02:00:34 +00:00
772e39caf2
According to the jQuery documentation (and code) all kinds of $( '<element>' ) $( '<element/>' ) $( '<element />' ) $( '<element></element>' ) are identical. So yes, this patch does not change anything. All it does is removing characters that are ignored anyway. Using the same style everywhere makes the code easier to read and understand and may save a few bytes when it is gzipped. The current WikiEditor code contains 67 usages of that jQuery call. Only very few of them are not in the most simple <element> style. Personally I consider the style <div/> confusing since a <div> can not be a void element. Change-Id: I816b4cccc9ee329e9bcdd9bd2353e5653fd10c36
1394 lines
50 KiB
JavaScript
1394 lines
50 KiB
JavaScript
/* IFrame extension for wikiEditor */
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/*jshint onevar:false, boss:true */
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( function ( $ ) { $.wikiEditor.extensions.iframe = function ( context ) {
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/*
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* Event Handlers
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*
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* These act as filters returning false if the event should be ignored or returning true if it should be passed
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* on to all modules. This is also where we can attach some extra information to the events.
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*/
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context.evt = $.extend( context.evt, {
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/**
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* Filters change events, which occur when the user interacts with the contents of the iframe. The goal of this
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* function is to both classify the scope of changes as 'division' or 'character' and to prevent further
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* processing of events which did not actually change the content of the iframe.
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*/
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keydown: function ( event ) {
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switch ( event.which ) {
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case 90: // z
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case 89: // y
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if ( event.which === 89 && !$.browser.msie ) {
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// only handle y events for IE
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return true;
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} else if ( ( event.ctrlKey || event.metaKey ) && context.history.length ) {
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// HistoryPosition is a negative number between -1 and -context.history.length, in other words
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// it's the number of steps backwards from the latest state.
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var newPosition;
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if ( event.shiftKey || event.which === 89 ) {
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// Redo
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newPosition = context.historyPosition + 1;
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} else {
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// Undo
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newPosition = context.historyPosition - 1;
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}
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// Only act if we are switching to a valid state
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if ( newPosition >= ( context.history.length * -1 ) && newPosition < 0 ) {
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// Make sure we run the history storing code before we make this change
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context.fn.updateHistory( context.oldDelayedHTML !== context.$content.html() );
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context.oldDelayedHistoryPosition = context.historyPosition;
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context.historyPosition = newPosition;
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// Change state
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// FIXME: Destroys event handlers, will be a problem with template folding
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context.$content.html(
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context.history[context.history.length + context.historyPosition].html
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);
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context.fn.purgeOffsets();
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if( context.history[context.history.length + context.historyPosition].sel ) {
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context.fn.setSelection( {
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start: context.history[context.history.length + context.historyPosition].sel[0],
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end: context.history[context.history.length + context.historyPosition].sel[1]
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} );
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}
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}
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// Prevent the browser from jumping in and doing its stuff
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return false;
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}
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break;
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// Intercept all tab events to provide consisten behavior across browsers
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// Webkit browsers insert tab characters by default into the iframe rather than changing input focus
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case 9: //tab
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// if any modifier keys are pressed, allow the browser to do it's thing
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if ( event.ctrlKey || event.altKey || event.shiftKey ) {
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return true;
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} else {
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var $tabindexList = $( '[tabindex]:visible' ).sort( function( a, b ) {
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return a.tabIndex - b.tabIndex;
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} );
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for ( var i=0; i < $tabindexList.length; i++ ) {
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if ( $tabindexList.eq( i ).attr( 'id' ) === context.$iframe.attr( 'id' ) ) {
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$tabindexList.get( i + 1 ).focus();
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break;
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}
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}
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return false;
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}
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break;
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case 86: //v
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if ( event.ctrlKey && $.browser.msie && 'paste' in context.evt ) {
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//paste, intercepted for IE
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context.evt.paste( event );
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}
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break;
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}
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return true;
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},
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change: function ( event ) {
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event.data.scope = 'division';
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var newHTML = context.$content.html();
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if ( context.oldHTML !== newHTML ) {
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context.fn.purgeOffsets();
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context.oldHTML = newHTML;
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event.data.scope = 'realchange';
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}
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// Never let the body be totally empty
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if ( context.$content.children().length === 0 ) {
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context.$content.append( '<p></p>' );
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}
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return true;
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},
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delayedChange: function ( event ) {
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event.data.scope = 'division';
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var newHTML = context.$content.html();
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if ( context.oldDelayedHTML !== newHTML ) {
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context.oldDelayedHTML = newHTML;
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event.data.scope = 'realchange';
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// Surround by <p> if it does not already have it
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var cursorPos = context.fn.getCaretPosition();
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var t = context.fn.getOffset( cursorPos[0] );
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if ( ! $.browser.msie && t && t.node.nodeName === '#text' && t.node.parentNode.nodeName.toLowerCase() === 'body' ) {
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$( t.node ).wrap( '<p></p>' );
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context.fn.purgeOffsets();
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context.fn.setSelection( { start: cursorPos[0], end: cursorPos[1] } );
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}
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}
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context.fn.updateHistory( event.data.scope === 'realchange' );
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return true;
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},
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cut: function ( event ) {
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setTimeout( function() {
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context.$content.find( 'br' ).each( function() {
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if ( $(this).parent().is( 'body' ) ) {
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$(this).wrap( $( '<p>' ) );
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}
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} );
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}, 100 );
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return true;
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},
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paste: function ( event ) {
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// Save the cursor position to restore it after all this voodoo
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var cursorPos = context.fn.getCaretPosition();
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var oldLength = context.fn.getContents().length;
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var positionFromEnd = oldLength - cursorPos[1];
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//give everything the wikiEditor class so that we can easily pick out things without that class as pasted
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context.$content.find( '*' ).addClass( 'wikiEditor' );
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if ( $.layout.name !== 'webkit' ) {
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context.$content.addClass( 'pasting' );
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}
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setTimeout( function() {
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/*jshint eqnull:true */
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// Kill stuff we know we don't want
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context.$content.find( 'script,style,img,input,select,textarea,hr,button,link,meta' ).remove();
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var nodeToDelete = [];
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var pastedContent = [];
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var firstDirtyNode;
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var $lastDirtyNode;
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var elementAtCursor;
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if ( $.browser.msie && !context.offsets ) {
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elementAtCursor = null;
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} else {
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elementAtCursor = context.fn.getOffset( cursorPos[0] );
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}
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if ( elementAtCursor == null || elementAtCursor.node == null ) {
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context.$content.prepend( '<p class = wikiEditor></p>' );
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firstDirtyNode = context.$content.children()[0];
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} else {
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firstDirtyNode = elementAtCursor.node;
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}
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// This is ugly but seems like the best way to handle the case where we select and replace all editor contents
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try {
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/*jshint expr:true */
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firstDirtyNode.parentNode;
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} catch ( err ) {
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context.$content.prepend( '<p class = wikiEditor></p>' );
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firstDirtyNode = context.$content.children()[0];
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}
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while ( firstDirtyNode != null ) {
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//we're going to replace the contents of the entire parent node.
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while ( firstDirtyNode.parentNode && firstDirtyNode.parentNode.nodeName !== 'BODY' &&
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!$( firstDirtyNode ).hasClass( 'wikiEditor' )
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) {
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firstDirtyNode = firstDirtyNode.parentNode;
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}
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//go back till we find the first pasted node
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while ( firstDirtyNode.previousSibling != null &&
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!$( firstDirtyNode.previousSibling ).hasClass( 'wikiEditor' )
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) {
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if ( $( firstDirtyNode.previousSibling ).hasClass( '#comment' ) ) {
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$( firstDirtyNode ).remove();
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} else {
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firstDirtyNode = firstDirtyNode.previousSibling;
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}
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}
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if ( firstDirtyNode.previousSibling != null ) {
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$lastDirtyNode = $( firstDirtyNode.previousSibling );
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} else {
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$lastDirtyNode = $( firstDirtyNode );
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}
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var cc = makeContentCollector( $.browser, null );
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while ( firstDirtyNode != null ) {
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cc.collectContent(firstDirtyNode);
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cc.notifyNextNode(firstDirtyNode.nextSibling);
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nodeToDelete.push( firstDirtyNode );
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firstDirtyNode = firstDirtyNode.nextSibling;
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if ( $( firstDirtyNode ).hasClass( 'wikiEditor' ) ) {
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break;
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}
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}
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var ccData = cc.finish();
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pastedContent = ccData.lines;
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var pastedPretty = '';
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for ( var i = 0; i < pastedContent.length; i++ ) {
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//escape html
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pastedPretty = pastedContent[i].replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/\r?\n/g, '\\n');
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//replace leading white spaces with
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match = pastedContent[i].match(/^[\s]+[^\s]/);
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if ( match != null && match.length > 0 ) {
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index = match[0].length;
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leadingSpace = match[0].replace(/[\s]/g, ' ');
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pastedPretty = leadingSpace + pastedPretty.substring(index, pastedPretty.length);
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}
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if ( !pastedPretty && $.browser.msie && i === 0 ) {
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continue;
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}
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$newElement = $( '<p class="wikiEditor pasted" ></p>' );
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if ( pastedPretty ) {
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$newElement.html( pastedPretty );
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} else {
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$newElement.html( '<br class="wikiEditor">' );
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}
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$newElement.insertAfter( $lastDirtyNode );
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$lastDirtyNode = $newElement;
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}
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//now delete all the original nodes that we prettified already
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while ( nodeToDelete.length > 0 ) {
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$deleteNode = $( nodeToDelete.pop() );
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$deleteNode.remove();
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}
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//anything without wikiEditor class was pasted.
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$selection = context.$content.find( ':not(.wikiEditor)' );
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if ( $selection.length === 0 ) {
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break;
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} else {
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firstDirtyNode = $selection.eq( 0 )[0];
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}
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}
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context.$content.find( '.wikiEditor' ).removeClass( 'wikiEditor' );
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//now place the cursor at the end of pasted content
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var newLength = context.fn.getContents().length;
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var newPos = newLength - positionFromEnd;
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context.fn.purgeOffsets();
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context.fn.setSelection( { start: newPos, end: newPos } );
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context.fn.scrollToCaretPosition();
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}, 0 );
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return true;
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},
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ready: function ( event ) {
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// Initialize our history queue
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if ( context.$content ) {
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context.history.push( { 'html': context.$content.html(), 'sel': context.fn.getCaretPosition() } );
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} else {
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context.history.push( { 'html': '', 'sel': context.fn.getCaretPosition() } );
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}
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return true;
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}
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} );
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/**
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* Internally used functions
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*/
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context.fn = $.extend( context.fn, {
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/**
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* @param {jQuery} $element
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* @param mode
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*/
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highlightLine: function ( $element ) {
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if ( !$element.is( 'p' ) ) {
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$element = $element.closest( 'p' );
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}
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$element.css( 'backgroundColor', '#AACCFF' );
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setTimeout( function() { $element.animate( { 'backgroundColor': 'white' }, 'slow' ); }, 100 );
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setTimeout( function() { $element.css( 'backgroundColor', 'white' ); }, 1000 );
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},
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htmlToText: function ( html ) {
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// This function is slow for large inputs, so aggressively cache input/output pairs
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if ( html in context.htmlToTextMap ) {
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return context.htmlToTextMap[html];
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}
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var origHTML = html;
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// We use this elaborate trickery for cross-browser compatibility
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// IE does overzealous whitespace collapsing for $( '<pre>' ).html( html );
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// We also do <br> and easy cases for <p> conversion here, complicated cases are handled later
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html = html
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.replace( /\r?\n/g, '' ) // IE7 inserts newlines before block elements
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.replace( / /g, ' ' ) // We inserted these to prevent IE from collapsing spaces
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.replace( /<br[^\>]*\><\/p\>/gi, '</p>' ) // Remove trailing <br> from <p>
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.replace( /<\/p\>\s*<p[^\>]*\>/gi, '\n' ) // Easy case for <p> conversion
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.replace( /<br[^\>]*\>/gi, '\n' ) // <br> conversion
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.replace( /<\/p\>(\n*)<p[^\>]*\>/gi, '$1\n' )
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// Un-nest <p> tags
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.replace( /<p[^\>]*\><p[^\>]*\>/gi, '<p>' )
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.replace( /<\/p\><\/p\>/gi, '</p>' );
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// Save leading and trailing whitespace now and restore it later. IE eats it all, and even Firefox
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// won't leave everything alone
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var leading = html.match( /^\s*/ )[0];
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var trailing = html.match( /\s*$/ )[0];
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html = html.substr( leading.length, html.length - leading.length - trailing.length );
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var $pre = $( '<pre>' + html + '</pre>' );
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$pre.find( '.wikiEditor-noinclude' ).each( function() { $( this ).remove(); } );
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// Convert tabs, <p>s and <br>s back
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$pre.find( '.wikiEditor-tab' ).each( function() { $( this ).text( '\t' ); } );
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$pre.find( 'br' ).each( function() { $( this ).replaceWith( '\n' ); } );
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// Converting <p>s is wrong if there's nothing before them, so check that.
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// .find( '* + p' ) isn't good enough because textnodes aren't considered
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$pre.find( 'p' ).each( function() {
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var text = $( this ).text();
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// If this <p> is preceded by some text, add a \n at the beginning, and if
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// it's followed by a textnode, add a \n at the end
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// We need the traverser because there can be other weird stuff in between
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// Check for preceding text
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var t = new context.fn.rawTraverser( this.firstChild, this, $pre.get( 0 ), true ).prev();
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while ( t && t.node.nodeName !== '#text' && t.node.nodeName !== 'BR' && t.node.nodeName !== 'P' ) {
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t = t.prev();
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}
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if ( t ) {
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text = '\n' + text;
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}
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// Check for following text
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t = new context.fn.rawTraverser( this.lastChild, this, $pre.get( 0 ), true ).next();
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while ( t && t.node.nodeName !== '#text' && t.node.nodeName !== 'BR' && t.node.nodeName !== 'P' ) {
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t = t.next();
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}
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if ( t && !t.inP && t.node.nodeName === '#text' && t.node.nodeValue.charAt( 0 ) !== '\n' &&
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t.node.nodeValue.charAt( 0 ) !== '\r' ) {
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text += '\n';
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}
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$( this ).text( text );
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} );
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var retval;
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if ( $.browser.msie ) {
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// IE aggressively collapses whitespace in .text() after having done DOM manipulation,
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// but for some crazy reason this does work. Also convert \r back to \n
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retval = $( '<pre>' + $pre.html() + '</pre>' ).text().replace( /\r/g, '\n' );
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} else {
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retval = $pre.text();
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}
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return context.htmlToTextMap[origHTML] = leading + retval + trailing;
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},
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/**
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* Get the first element before the selection that's in a certain class
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* @param classname Class to match. Defaults to '', meaning any class
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* @param strict If true, the element the selection starts in cannot match (default: false)
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* @return jQuery object or null if unknown
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*/
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beforeSelection: function ( classname, strict ) {
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if ( typeof classname === 'undefined' ) {
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classname = '';
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}
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var e = null, offset = null;
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if ( $.browser.msie && !context.$iframe[0].contentWindow.document.body ) {
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return null;
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}
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if ( context.$iframe[0].contentWindow.getSelection ) {
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// Firefox and Opera
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var selection = context.$iframe[0].contentWindow.getSelection();
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// On load, webkit seems to not have a valid selection
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if ( selection.baseNode !== null ) {
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// Start at the selection's start and traverse the DOM backwards
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// This is done by traversing an element's children first, then the element itself, then its parent
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e = selection.getRangeAt( 0 ).startContainer;
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offset = selection.getRangeAt( 0 ).startOffset;
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} else {
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return null;
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}
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// When the cursor is on an empty line, Opera gives us a bogus range object with
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// startContainer=endContainer=body and startOffset=endOffset=1
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var body = context.$iframe[0].contentWindow.document.body;
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if ( $.browser.opera && e === body && offset === 1 ) {
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return null;
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}
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}
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if ( !e && context.$iframe[0].contentWindow.document.selection ) {
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// IE
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// Because there's nothing like range.startContainer in IE, we need to do a DOM traversal
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// to find the element the start of the selection is in
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var range = context.$iframe[0].contentWindow.document.selection.createRange();
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// Set range2 to the text before the selection
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var range2 = context.$iframe[0].contentWindow.document.body.createTextRange();
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// For some reason this call throws errors in certain cases, e.g. when the selection is
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// not in the iframe
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try {
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range2.setEndPoint( 'EndToStart', range );
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} catch ( ex ) {
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return null;
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}
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var seekPos = context.fn.htmlToText( range2.htmlText ).length;
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offset = context.fn.getOffset( seekPos );
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e = offset ? offset.node : null;
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offset = offset ? offset.offset : null;
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if ( !e ) {
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return null;
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}
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}
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if ( e.nodeName !== '#text' ) {
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// The selection is not in a textnode, but between two non-text nodes
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// (usually inside the <body> between two <br>s). Go to the rightmost
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// child of the node just before the selection
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var newE = e.firstChild;
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for ( var i = 0; i < offset - 1 && newE; i++ ) {
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newE = newE.nextSibling;
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}
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while ( newE && newE.lastChild ) {
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newE = newE.lastChild;
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}
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e = newE || e;
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}
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// We'd normally use if( $( e ).hasClass( class ) in the while loop, but running the jQuery
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// constructor thousands of times is very inefficient
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var classStr = ' ' + classname + ' ';
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while ( e ) {
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if ( !strict && ( !classname || ( ' ' + e.className + ' ' ).indexOf( classStr ) !== -1 ) ) {
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return $( e );
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}
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var next = e.previousSibling;
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while ( next && next.lastChild ) {
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next = next.lastChild;
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}
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e = next || e.parentNode;
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strict = false;
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}
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return $( [] );
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},
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/**
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* Object used by traverser(). Don't use this unless you know what you're doing
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*/
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rawTraverser: function ( node, inP, ancestor, skipNoinclude ) {
|
|
this.node = node;
|
|
this.inP = inP;
|
|
this.ancestor = ancestor;
|
|
this.skipNoinclude = skipNoinclude;
|
|
this.next = function() {
|
|
var p = this.node;
|
|
var nextInP = this.inP;
|
|
while ( p && !p.nextSibling ) {
|
|
p = p.parentNode;
|
|
if ( p === this.ancestor ) {
|
|
// We're back at the ancestor, stop here
|
|
p = null;
|
|
}
|
|
if ( p && p.nodeName === 'P' ) {
|
|
nextInP = null;
|
|
}
|
|
}
|
|
p = p ? p.nextSibling : null;
|
|
if ( p && p.nodeName === 'P' ) {
|
|
nextInP = p;
|
|
}
|
|
do {
|
|
// Filter nodes with the wikiEditor-noinclude class
|
|
// Don't use $( p ).hasClass( 'wikiEditor-noinclude' ) because
|
|
// $() is slow in a tight loop
|
|
if ( this.skipNoinclude ) {
|
|
while ( p && ( ' ' + p.className + ' ' ).indexOf( ' wikiEditor-noinclude ' ) !== -1 ) {
|
|
p = p.nextSibling;
|
|
}
|
|
}
|
|
if ( p && p.firstChild ) {
|
|
p = p.firstChild;
|
|
if ( p.nodeName === 'P' ) {
|
|
nextInP = p;
|
|
}
|
|
}
|
|
} while ( p && p.firstChild );
|
|
// Instead of calling the rawTraverser constructor, inline it. This avoids function call overhead
|
|
return p ? { 'node': p, 'inP': nextInP, 'ancestor': this.ancestor,
|
|
'skipNoinclude': this.skipNoinclude, 'next': this.next, 'prev': this.prev } : null;
|
|
};
|
|
this.prev = function() {
|
|
var p = this.node;
|
|
var prevInP = this.inP;
|
|
while ( p && !p.previousSibling ) {
|
|
p = p.parentNode;
|
|
if ( p === this.ancestor ) {
|
|
// We're back at the ancestor, stop here
|
|
p = null;
|
|
}
|
|
if ( p && p.nodeName === 'P' ) {
|
|
prevInP = null;
|
|
}
|
|
}
|
|
p = p ? p.previousSibling : null;
|
|
if ( p && p.nodeName === 'P' ) {
|
|
prevInP = p;
|
|
}
|
|
do {
|
|
// Filter nodes with the wikiEditor-noinclude class
|
|
// Don't use $( p ).hasClass( 'wikiEditor-noinclude' ) because
|
|
// $() is slow in a tight loop
|
|
if ( this.skipNoinclude ) {
|
|
while ( p && ( ' ' + p.className + ' ' ).indexOf( ' wikiEditor-noinclude ' ) != -1 ) {
|
|
p = p.previousSibling;
|
|
}
|
|
}
|
|
if ( p && p.lastChild ) {
|
|
p = p.lastChild;
|
|
if ( p.nodeName == 'P' ) {
|
|
prevInP = p;
|
|
}
|
|
}
|
|
} while ( p && p.lastChild );
|
|
// Instead of calling the rawTraverser constructor, inline it. This avoids function call overhead
|
|
return p ? { 'node': p, 'inP': prevInP, 'ancestor': this.ancestor,
|
|
'skipNoinclude': this.skipNoinclude, 'next': this.next, 'prev': this.prev } : null;
|
|
};
|
|
},
|
|
/**
|
|
* Get an object used to traverse the leaf nodes in the iframe DOM. This traversal skips leaf nodes
|
|
* inside an element with the wikiEditor-noinclude class. This basically wraps rawTraverser
|
|
*
|
|
* @param start Node to start at
|
|
* @return Traverser object, use .next() or .prev() to get a traverser object referring to the
|
|
* previous/next node
|
|
*/
|
|
traverser: function ( start ) {
|
|
// Find the leftmost leaf node in the tree
|
|
var startNode = start.jquery ? start.get( 0 ) : start;
|
|
var node = startNode;
|
|
var inP = node.nodeName === 'P' ? node : null;
|
|
do {
|
|
// Filter nodes with the wikiEditor-noinclude class
|
|
// Don't use $( p ).hasClass( 'wikiEditor-noinclude' ) because
|
|
// $() is slow in a tight loop
|
|
while ( node && ( ' ' + node.className + ' ' ).indexOf( ' wikiEditor-noinclude ' ) !== -1 ) {
|
|
node = node.nextSibling;
|
|
}
|
|
if ( node && node.firstChild ) {
|
|
node = node.firstChild;
|
|
if ( node.nodeName === 'P' ) {
|
|
inP = node;
|
|
}
|
|
}
|
|
} while ( node && node.firstChild );
|
|
return new context.fn.rawTraverser( node, inP, startNode, true );
|
|
},
|
|
getOffset: function ( offset ) {
|
|
if ( !context.offsets ) {
|
|
context.fn.refreshOffsets();
|
|
}
|
|
if ( offset in context.offsets ) {
|
|
return context.offsets[offset];
|
|
}
|
|
// Our offset is not pre-cached. Find the highest offset below it and interpolate
|
|
// We need to traverse the entire object because for() doesn't traverse in order
|
|
// We don't do in-order traversal because the object is sparse
|
|
var lowerBound = -1;
|
|
for ( var o in context.offsets ) {
|
|
var realO = parseInt( o );
|
|
if ( realO < offset && realO > lowerBound) {
|
|
lowerBound = realO;
|
|
}
|
|
}
|
|
if ( !( lowerBound in context.offsets ) ) {
|
|
// Weird edge case: either offset is too large or the document is empty
|
|
return null;
|
|
}
|
|
var base = context.offsets[lowerBound];
|
|
return context.offsets[offset] = {
|
|
'node': base.node,
|
|
'offset': base.offset + offset - lowerBound,
|
|
'length': base.length,
|
|
'lastTextNode': base.lastTextNode
|
|
};
|
|
},
|
|
purgeOffsets: function () {
|
|
context.offsets = null;
|
|
},
|
|
refreshOffsets: function () {
|
|
context.offsets = [ ];
|
|
var t = context.fn.traverser( context.$content );
|
|
var pos = 0, lastTextNode = null;
|
|
while ( t ) {
|
|
if ( t.node.nodeName !== '#text' && t.node.nodeName !== 'BR' ) {
|
|
t = t.next();
|
|
continue;
|
|
}
|
|
var nextPos = t.node.nodeName === '#text' ? pos + t.node.nodeValue.length : pos + 1;
|
|
var nextT = t.next();
|
|
var leavingP = t.node.nodeName === '#text' && t.inP && nextT && ( !nextT.inP || nextT.inP !== t.inP );
|
|
context.offsets[pos] = {
|
|
'node': t.node,
|
|
'offset': 0,
|
|
'length': nextPos - pos + ( leavingP ? 1 : 0 ),
|
|
'lastTextNode': lastTextNode
|
|
};
|
|
if ( leavingP ) {
|
|
// <p>Foo</p> looks like "Foo\n", make it quack like it too
|
|
// Basically we're faking the \n character much like we're treating <br>s
|
|
context.offsets[nextPos] = {
|
|
'node': t.node,
|
|
'offset': nextPos - pos,
|
|
'length': nextPos - pos + 1,
|
|
'lastTextNode': lastTextNode
|
|
};
|
|
}
|
|
pos = nextPos + ( leavingP ? 1 : 0 );
|
|
if ( t.node.nodeName === '#text' ) {
|
|
lastTextNode = t.node;
|
|
}
|
|
t = nextT;
|
|
}
|
|
},
|
|
saveCursorAndScrollTop: function () {
|
|
// Stub out textarea behavior
|
|
return;
|
|
},
|
|
restoreCursorAndScrollTop: function () {
|
|
// Stub out textarea behavior
|
|
return;
|
|
},
|
|
saveSelection: function () {
|
|
if ( $.client.profile().name === 'msie' ) {
|
|
context.$iframe[0].contentWindow.focus();
|
|
context.savedSelection = context.$iframe[0].contentWindow.document.selection.createRange();
|
|
}
|
|
},
|
|
restoreSelection: function () {
|
|
if ( $.client.profile().name === 'msie' && context.savedSelection !== null ) {
|
|
context.$iframe[0].contentWindow.focus();
|
|
context.savedSelection.select();
|
|
context.savedSelection = null;
|
|
}
|
|
},
|
|
/**
|
|
* Update the history queue
|
|
*
|
|
* @param htmlChange Pass true or false to inidicate if there was a text change that should potentially
|
|
* be given a new history state.
|
|
*/
|
|
updateHistory: function ( htmlChange ) {
|
|
var newHTML = context.$content.html();
|
|
var newSel = context.fn.getCaretPosition();
|
|
// Was text changed? Was it because of a REDO or UNDO action?
|
|
if (
|
|
context.history.length == 0 ||
|
|
( htmlChange && context.oldDelayedHistoryPosition == context.historyPosition )
|
|
) {
|
|
context.oldDelayedSel = newSel;
|
|
// Do we need to trim extras from our history?
|
|
// FIXME: this should really be happing on change, not on the delay
|
|
if ( context.historyPosition < -1 ) {
|
|
//clear out the extras
|
|
context.history.splice( context.history.length + context.historyPosition + 1 );
|
|
context.historyPosition = -1;
|
|
}
|
|
context.history.push( { 'html': newHTML, 'sel': newSel } );
|
|
// If the history has grown longer than 10 items, remove the earliest one
|
|
while ( context.history.length > 10 ) {
|
|
context.history.shift();
|
|
}
|
|
} else if ( context.oldDelayedSel != newSel ) {
|
|
// If only the selection was changed, update it
|
|
context.oldDelayedSel = newSel;
|
|
context.history[context.history.length + context.historyPosition].sel = newSel;
|
|
}
|
|
// synch our old delayed history position until the next undo/redo action
|
|
context.oldDelayedHistoryPosition = context.historyPosition;
|
|
},
|
|
/**
|
|
* Sets up the iframe in place of the textarea to allow more advanced operations
|
|
*/
|
|
setupIframe: function () {
|
|
context.$iframe = $( '<iframe>' )
|
|
.attr( {
|
|
'frameBorder': 0,
|
|
'border': 0,
|
|
'tabindex': 1,
|
|
'src': mw.config.get( 'wgExtensionAssetsPath' ) + '/WikiEditor/modules/jquery.wikiEditor.html?' +
|
|
'instance=' + context.instance + '&ts=' + ( new Date() ).getTime() + '&is=content',
|
|
'id': 'wikiEditor-iframe-' + context.instance
|
|
} )
|
|
.css( {
|
|
'backgroundColor': 'white',
|
|
'width': '100%',
|
|
'height': context.$textarea.height(),
|
|
'display': 'none',
|
|
'overflow-y': 'scroll',
|
|
'overflow-x': 'hidden'
|
|
} )
|
|
.insertAfter( context.$textarea )
|
|
.load( function() {
|
|
// Internet Explorer will reload the iframe once we turn on design mode, so we need to only turn it
|
|
// on during the first run, and then bail
|
|
if ( !this.isSecondRun ) {
|
|
// Turn the document's design mode on
|
|
context.$iframe[0].contentWindow.document.designMode = 'on';
|
|
// Let the rest of this function happen next time around
|
|
if ( $.browser.msie ) {
|
|
this.isSecondRun = true;
|
|
return;
|
|
}
|
|
}
|
|
// Get a reference to the content area of the iframe
|
|
context.$content = $( context.$iframe[0].contentWindow.document.body );
|
|
// Add classes to the body to influence the styles based on what's enabled
|
|
for ( module in context.modules ) {
|
|
context.$content.addClass( 'wikiEditor-' + module );
|
|
}
|
|
// If we just do "context.$content.text( context.$textarea.val() )", Internet Explorer will strip
|
|
// out the whitespace charcters, specifically "\n" - so we must manually encode text and append it
|
|
// TODO: Refactor this into a textToHtml() function
|
|
var html = context.$textarea.val()
|
|
// We're gonna use &esc; as an escape sequence
|
|
.replace( /&esc;/g, '&esc;esc;' )
|
|
// Escape existing uses of <p>, </p>, and <span class="wikiEditor-tab"></span>
|
|
.replace( /\<p\>/g, '&esc;<p>' )
|
|
.replace( /\<\/p\>/g, '&esc;</p>' )
|
|
.replace(
|
|
/\<span class="wikiEditor-tab"\>\<\/span\>/g,
|
|
'&esc;<span class="wikiEditor-tab"></span>'
|
|
)
|
|
.replace( / /g, '&esc;&nbsp;' );
|
|
// We must do some extra processing on IE to avoid dirty diffs, specifically IE will collapse
|
|
// leading spaces - browser sniffing is not ideal, but executing this code on a non-broken browser
|
|
// doesn't cause harm
|
|
if ( $.browser.msie ) {
|
|
html = html.replace( /\t/g, '<span class="wikiEditor-tab"></span>' );
|
|
if ( $.browser.versionNumber <= 7 ) {
|
|
// Replace all spaces matching - IE <= 7 needs this because of its overzealous
|
|
// whitespace collapsing
|
|
html = html.replace( / /g, " " );
|
|
} else {
|
|
// IE8 is happy if we just convert the first leading space to
|
|
html = html.replace( /(^|\n) /g, "$1 " );
|
|
}
|
|
}
|
|
// Use a dummy div to escape all entities
|
|
// This'll also escape <br>, <span> and , so we unescape those after
|
|
// We also need to unescape the doubly-escaped things mentioned above
|
|
html = $( '<div>' ).text( '<p>' + html.replace( /\r?\n/g, '</p><p>' ) + '</p>' ).html()
|
|
.replace( /&nbsp;/g, ' ' )
|
|
// Allow <p> tags to survive encoding
|
|
.replace( /<p>/g, '<p>' )
|
|
.replace( /<\/p>/g, '</p>' )
|
|
// And <span class="wikiEditor-tab"></span> too
|
|
.replace(
|
|
/<span( | )class=("|")wikiEditor-tab("|")><\/span>/g,
|
|
'<span class="wikiEditor-tab"></span>'
|
|
)
|
|
// Empty <p> tags need <br> tags in them
|
|
.replace( /<p><\/p>/g, '<p><br></p>' )
|
|
// Unescape &esc; stuff
|
|
.replace( /&esc;&amp;nbsp;/g, '&nbsp;' )
|
|
.replace( /&esc;&lt;p&gt;/g, '<p>' )
|
|
.replace( /&esc;&lt;\/p&gt;/g, '</p>' )
|
|
.replace(
|
|
/&esc;&lt;span&nbsp;class=&quot;wikiEditor-tab&quot;&gt;&lt;\/span&gt;/g,
|
|
'<span class="wikiEditor-tab"><\/span>'
|
|
)
|
|
.replace( /&esc;esc;/g, '&esc;' );
|
|
context.$content.html( html );
|
|
|
|
// Reflect direction of parent frame into child
|
|
if ( $( 'body' ).is( '.rtl' ) ) {
|
|
context.$content.addClass( 'rtl' ).attr( 'dir', 'rtl' );
|
|
}
|
|
// Activate the iframe, encoding the content of the textarea and copying it to the content of iframe
|
|
context.$textarea.attr( 'disabled', true );
|
|
context.$textarea.hide();
|
|
context.$iframe.show();
|
|
// Let modules know we're ready to start working with the content
|
|
context.fn.trigger( 'ready' );
|
|
// Only save HTML now: ready handlers may have modified it
|
|
context.oldHTML = context.oldDelayedHTML = context.$content.html();
|
|
//remove our temporary loading
|
|
/* Disaling our loading div for now
|
|
$( '.wikiEditor-ui-loading' ).fadeOut( 'fast', function() {
|
|
$( this ).remove();
|
|
} );
|
|
*/
|
|
// Setup event handling on the iframe
|
|
$( context.$iframe[0].contentWindow.document )
|
|
.bind( 'keydown', function( event ) {
|
|
event.jQueryNode = context.fn.getElementAtCursor();
|
|
return context.fn.trigger( 'keydown', event );
|
|
|
|
} )
|
|
.bind( 'keyup', function( event ) {
|
|
event.jQueryNode = context.fn.getElementAtCursor();
|
|
return context.fn.trigger( 'keyup', event );
|
|
} )
|
|
.bind( 'keypress', function( event ) {
|
|
event.jQueryNode = context.fn.getElementAtCursor();
|
|
return context.fn.trigger( 'keypress', event );
|
|
} )
|
|
.bind( 'paste', function( event ) {
|
|
return context.fn.trigger( 'paste', event );
|
|
} )
|
|
.bind( 'cut', function( event ) {
|
|
return context.fn.trigger( 'cut', event );
|
|
} )
|
|
.bind( 'keyup paste mouseup cut encapsulateSelection', function( event ) {
|
|
return context.fn.trigger( 'change', event );
|
|
} )
|
|
.delayedBind( 250, 'keyup paste mouseup cut encapsulateSelection', function( event ) {
|
|
context.fn.trigger( 'delayedChange', event );
|
|
} );
|
|
} );
|
|
// Attach a submit handler to the form so that when the form is submitted the content of the iframe gets
|
|
// decoded and copied over to the textarea
|
|
context.$textarea.closest( 'form' ).submit( function() {
|
|
context.$textarea.attr( 'disabled', false );
|
|
context.$textarea.val( context.$textarea.textSelection( 'getContents' ) );
|
|
} );
|
|
/* FIXME: This was taken from EditWarning.js - maybe we could do a jquery plugin for this? */
|
|
// Attach our own handler for onbeforeunload which respects the current one
|
|
context.fallbackWindowOnBeforeUnload = window.onbeforeunload;
|
|
window.onbeforeunload = function() {
|
|
context.$textarea.val( context.$textarea.textSelection( 'getContents' ) );
|
|
if ( context.fallbackWindowOnBeforeUnload ) {
|
|
return context.fallbackWindowOnBeforeUnload();
|
|
}
|
|
};
|
|
},
|
|
|
|
/**
|
|
* Compatibility with the $.textSelection jQuery plug-in. When the iframe is in use, these functions provide
|
|
* equivilant functionality to the otherwise textarea-based functionality.
|
|
*/
|
|
|
|
getElementAtCursor: function () {
|
|
if ( context.$iframe[0].contentWindow.getSelection ) {
|
|
// Firefox and Opera
|
|
var selection = context.$iframe[0].contentWindow.getSelection();
|
|
if ( selection.rangeCount == 0 ) {
|
|
// We don't know where the cursor is
|
|
return $( [] );
|
|
}
|
|
var sc = selection.getRangeAt( 0 ).startContainer;
|
|
if ( sc.nodeName == "#text" ) sc = sc.parentNode;
|
|
return $( sc );
|
|
} else if ( context.$iframe[0].contentWindow.document.selection ) { // should come last; Opera!
|
|
// IE
|
|
var selection = context.$iframe[0].contentWindow.document.selection.createRange();
|
|
return $( selection.parentElement() );
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Gets the complete contents of the iframe (in plain text, not HTML)
|
|
*/
|
|
getContents: function () {
|
|
// For <p></p>, .html() returns <p> </p> in IE
|
|
// This seems to convince IE while not affecting display
|
|
if ( !context.$content ) {
|
|
return '';
|
|
}
|
|
var html;
|
|
if ( $.browser.msie ) {
|
|
// Don't manipulate the iframe DOM itself, causes cursor jumping issues
|
|
var $c = $( context.$content.get( 0 ).cloneNode( true ) );
|
|
$c.find( 'p' ).each( function() {
|
|
if ( $(this).html() == '' ) {
|
|
$(this).replaceWith( '<p></p>' );
|
|
}
|
|
} );
|
|
html = $c.html();
|
|
} else {
|
|
html = context.$content.html();
|
|
}
|
|
return context.fn.htmlToText( html );
|
|
},
|
|
/**
|
|
* Gets the currently selected text in the content
|
|
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
|
|
*/
|
|
getSelection: function () {
|
|
var retval;
|
|
if ( context.$iframe[0].contentWindow.getSelection ) {
|
|
// Firefox and Opera
|
|
retval = context.$iframe[0].contentWindow.getSelection();
|
|
if ( $.browser.opera ) {
|
|
// Opera strips newlines in getSelection(), so we need something more sophisticated
|
|
if ( retval.rangeCount > 0 ) {
|
|
retval = context.fn.htmlToText( $( '<pre>' )
|
|
.append( retval.getRangeAt( 0 ).cloneContents() )
|
|
.html()
|
|
);
|
|
} else {
|
|
retval = '';
|
|
}
|
|
}
|
|
} else if ( context.$iframe[0].contentWindow.document.selection ) { // should come last; Opera!
|
|
// IE
|
|
retval = context.$iframe[0].contentWindow.document.selection.createRange();
|
|
}
|
|
if ( typeof retval.text != 'undefined' ) {
|
|
// In IE8, retval.text is stripped of newlines, so we need to process retval.htmlText
|
|
// to get a reliable answer. IE7 does get this right though
|
|
// Run this fix for all IE versions anyway, it doesn't hurt
|
|
retval = context.fn.htmlToText( retval.htmlText );
|
|
} else if ( typeof retval.toString != 'undefined' ) {
|
|
retval = retval.toString();
|
|
}
|
|
return retval;
|
|
},
|
|
/**
|
|
* 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
|
|
*/
|
|
encapsulateSelection: function ( options ) {
|
|
var selText = $(this).textSelection( 'getSelection' );
|
|
var selTextArr;
|
|
var collapseToEnd = false;
|
|
var selectAfter = false;
|
|
var setSelectionTo = null;
|
|
var pre = options.pre, post = options.post;
|
|
if ( !selText ) {
|
|
selText = options.peri;
|
|
selectAfter = true;
|
|
} else if ( options.peri == selText.replace( /\s+$/, '' ) ) {
|
|
// Probably a successive button press
|
|
// strip any extra white space from selText
|
|
selText = selText.replace( /\s+$/, '' );
|
|
// set the collapseToEnd flag to ensure our selection is collapsed to the end before any insertion is done
|
|
collapseToEnd = true;
|
|
// set selectAfter to true since we know we'll be populating with our default text
|
|
selectAfter = true;
|
|
} else if ( options.replace ) {
|
|
selText = options.peri;
|
|
} else if ( selText.charAt( selText.length - 1 ) == ' ' ) {
|
|
// Exclude ending space char
|
|
// FIXME: Why?
|
|
selText = selText.substring( 0, selText.length - 1 );
|
|
post += ' ';
|
|
}
|
|
if ( options.splitlines ) {
|
|
selTextArr = selText.split( /\n/ );
|
|
}
|
|
|
|
if ( context.$iframe[0].contentWindow.getSelection ) {
|
|
// Firefox and Opera
|
|
var range = context.$iframe[0].contentWindow.getSelection().getRangeAt( 0 );
|
|
// if our test above indicated that this was a sucessive button press, we need to collapse the
|
|
// selection to the end to avoid replacing text
|
|
if ( collapseToEnd ) {
|
|
// Make sure we're not collapsing ourselves into a BR tag
|
|
if ( range.endContainer.nodeName == 'BR' ) {
|
|
range.setEndBefore( range.endContainer );
|
|
}
|
|
range.collapse( false );
|
|
}
|
|
if ( options.ownline ) {
|
|
// We need to figure out if the cursor is at the start or end of a line
|
|
var atStart = false, atEnd = false;
|
|
var body = context.$content.get( 0 );
|
|
if ( range.startOffset == 0 ) {
|
|
// Start of a line
|
|
// FIXME: Not necessarily the case with syntax highlighting or
|
|
// template collapsing
|
|
atStart = true;
|
|
} else if ( range.startContainer == body ) {
|
|
// Look up the node just before the start of the selection
|
|
// If it's a <BR>, we're at the start of a line that starts with a
|
|
// block element; if not, we're at the end of a line
|
|
var n = body.firstChild;
|
|
for ( var i = 0; i < range.startOffset - 1 && n; i++ ) {
|
|
n = n.nextSibling;
|
|
}
|
|
if ( n && n.nodeName == 'BR' ) {
|
|
atStart = true;
|
|
} else {
|
|
atEnd = true;
|
|
}
|
|
}
|
|
if ( ( range.endOffset == 0 && range.endContainer.nodeValue == null ) ||
|
|
( range.endContainer.nodeName == '#text' &&
|
|
range.endOffset == range.endContainer.nodeValue.length ) ||
|
|
( range.endContainer.nodeName == 'P' && range.endContainer.nodeValue == null ) ) {
|
|
atEnd = true;
|
|
}
|
|
if ( !atStart ) {
|
|
pre = "\n" + options.pre;
|
|
}
|
|
if ( !atEnd ) {
|
|
post += "\n";
|
|
}
|
|
}
|
|
var insertText = "";
|
|
if ( options.splitlines ) {
|
|
for( var j = 0; j < selTextArr.length; j++ ) {
|
|
insertText = insertText + pre + selTextArr[j] + post;
|
|
if( j != selTextArr.length - 1 ) {
|
|
insertText += "\n";
|
|
}
|
|
}
|
|
} else {
|
|
insertText = pre + selText + post;
|
|
}
|
|
var insertLines = insertText.split( "\n" );
|
|
range.extractContents();
|
|
// Insert the contents one line at a time - insertNode() inserts at the beginning, so this has to happen
|
|
// in reverse order
|
|
// Track the first and last inserted node, and if we need to also track where the text we need to select
|
|
// afterwards starts and ends
|
|
var firstNode = null, lastNode = null;
|
|
var selSC = null, selEC = null, selSO = null, selEO = null, offset = 0;
|
|
for ( var i = insertLines.length - 1; i >= 0; i-- ) {
|
|
firstNode = context.$iframe[0].contentWindow.document.createTextNode( insertLines[i] );
|
|
range.insertNode( firstNode );
|
|
lastNode = lastNode || firstNode;
|
|
var newOffset = offset + insertLines[i].length;
|
|
if ( !selEC && post.length <= newOffset ) {
|
|
selEC = firstNode;
|
|
selEO = selEC.nodeValue.length - ( post.length - offset );
|
|
}
|
|
if ( selEC && !selSC && pre.length >= insertText.length - newOffset ) {
|
|
selSC = firstNode;
|
|
selSO = pre.length - ( insertText.length - newOffset );
|
|
}
|
|
offset = newOffset;
|
|
if ( i > 0 ) {
|
|
firstNode = context.$iframe[0].contentWindow.document.createElement( 'br' );
|
|
range.insertNode( firstNode );
|
|
newOffset = offset + 1;
|
|
if ( !selEC && post.length <= newOffset ) {
|
|
selEC = firstNode;
|
|
selEO = 1 - ( post.length - offset );
|
|
}
|
|
if ( selEC && !selSC && pre.length >= insertText.length - newOffset ) {
|
|
selSC = firstNode;
|
|
selSO = pre.length - ( insertText.length - newOffset );
|
|
}
|
|
offset = newOffset;
|
|
}
|
|
}
|
|
if ( firstNode ) {
|
|
context.fn.scrollToTop( $( firstNode.parentNode ) );
|
|
}
|
|
if ( selectAfter ) {
|
|
setSelectionTo = {
|
|
startContainer: selSC,
|
|
endContainer: selEC,
|
|
start: selSO,
|
|
end: selEO
|
|
};
|
|
} else if ( lastNode ) {
|
|
setSelectionTo = {
|
|
startContainer: lastNode,
|
|
endContainer: lastNode,
|
|
start: lastNode.nodeValue.length,
|
|
end: lastNode.nodeValue.length
|
|
};
|
|
}
|
|
} else if ( context.$iframe[0].contentWindow.document.selection ) {
|
|
// IE
|
|
context.$iframe[0].contentWindow.focus();
|
|
var range = context.$iframe[0].contentWindow.document.selection.createRange();
|
|
if ( options.ownline && range.moveStart ) {
|
|
// Check if we're at the start of a line
|
|
// If not, prepend a newline
|
|
var range2 = context.$iframe[0].contentWindow.document.selection.createRange();
|
|
range2.collapse();
|
|
range2.moveStart( 'character', -1 );
|
|
// FIXME: Which check is correct?
|
|
if ( range2.text != "\r" && range2.text != "\n" && range2.text != "" ) {
|
|
pre = "\n" + pre;
|
|
}
|
|
|
|
// Check if we're at the end of a line
|
|
// If not, append a newline
|
|
var range3 = context.$iframe[0].contentWindow.document.selection.createRange();
|
|
range3.collapse( false );
|
|
range3.moveEnd( 'character', 1 );
|
|
if ( range3.text != "\r" && range3.text != "\n" && range3.text != "" ) {
|
|
post += "\n";
|
|
}
|
|
}
|
|
// if our test above indicated that this was a sucessive button press, we need to collapse the
|
|
// selection to the end to avoid replacing text
|
|
if ( collapseToEnd ) {
|
|
range.collapse( false );
|
|
}
|
|
// TODO: Clean this up. Duplicate code due to the pre-existing browser specific structure of this
|
|
// function
|
|
var insertText = "";
|
|
if ( options.splitlines ) {
|
|
for( var j = 0; j < selTextArr.length; j++ ) {
|
|
insertText = insertText + pre + selTextArr[j] + post;
|
|
if( j != selTextArr.length - 1 ) {
|
|
insertText += "\n";
|
|
}
|
|
}
|
|
} else {
|
|
insertText = pre + selText + post;
|
|
}
|
|
// TODO: Maybe find a more elegant way of doing this like the Firefox code above?
|
|
range.pasteHTML( insertText
|
|
.replace( /\</g, '<' )
|
|
.replace( />/g, '>' )
|
|
.replace( /\r?\n/g, '<br />' )
|
|
);
|
|
if ( selectAfter ) {
|
|
range.moveStart( 'character', -post.length - selText.length );
|
|
range.moveEnd( 'character', -post.length );
|
|
range.select();
|
|
}
|
|
}
|
|
|
|
if ( setSelectionTo ) {
|
|
context.fn.setSelection( setSelectionTo );
|
|
}
|
|
// Trigger the encapsulateSelection event (this might need to get named something else/done differently)
|
|
$( context.$iframe[0].contentWindow.document ).trigger(
|
|
'encapsulateSelection', [ pre, options.peri, post, options.ownline, options.replace ]
|
|
);
|
|
return context.$textarea;
|
|
},
|
|
/**
|
|
* Gets the position (in resolution of bytes not nessecarily characters) in a textarea
|
|
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
|
|
*/
|
|
getCaretPosition: function ( options ) {
|
|
var startPos = null, endPos = null;
|
|
if ( context.$iframe[0].contentWindow.getSelection ) {
|
|
var selection = context.$iframe[0].contentWindow.getSelection();
|
|
if ( selection.rangeCount == 0 ) {
|
|
// We don't know where the cursor is
|
|
return [ 0, 0 ];
|
|
}
|
|
var sc = selection.getRangeAt( 0 ).startContainer, ec = selection.getRangeAt( 0 ).endContainer;
|
|
var so = selection.getRangeAt( 0 ).startOffset, eo = selection.getRangeAt( 0 ).endOffset;
|
|
if ( sc.nodeName == 'BODY' ) {
|
|
// Grab the node just before the start of the selection
|
|
var n = sc.firstChild;
|
|
for ( var i = 0; i < so - 1 && n; i++ ) {
|
|
n = n.nextSibling;
|
|
}
|
|
sc = n;
|
|
so = 0;
|
|
}
|
|
if ( ec.nodeName == 'BODY' ) {
|
|
var n = ec.firstChild;
|
|
for ( var i = 0; i < eo - 1 && n; i++ ) {
|
|
n = n.nextSibling;
|
|
}
|
|
ec = n;
|
|
eo = 0;
|
|
}
|
|
|
|
// Make sure sc and ec are leaf nodes
|
|
while ( sc.firstChild ) {
|
|
sc = sc.firstChild;
|
|
}
|
|
while ( ec.firstChild ) {
|
|
ec = ec.firstChild;
|
|
}
|
|
// Make sure the offsets are regenerated if necessary
|
|
context.fn.getOffset( 0 );
|
|
var o;
|
|
for ( o in context.offsets ) {
|
|
if ( startPos === null && context.offsets[o].node == sc ) {
|
|
// For some wicked reason o is a string, even though
|
|
// we put it in as an integer. Use ~~ to coerce it too an int
|
|
startPos = ~~o + so - context.offsets[o].offset;
|
|
}
|
|
if ( startPos !== null && context.offsets[o].node == ec ) {
|
|
endPos = ~~o + eo - context.offsets[o].offset;
|
|
break;
|
|
}
|
|
}
|
|
} else if ( context.$iframe[0].contentWindow.document.selection ) {
|
|
// IE
|
|
// FIXME: This is mostly copypasted from the textSelection plugin
|
|
var d = context.$iframe[0].contentWindow.document;
|
|
var postFinished = false;
|
|
var periFinished = false;
|
|
var postFinished = false;
|
|
var preText, rawPreText, periText;
|
|
var rawPeriText, postText, rawPostText;
|
|
// Depending on the document state, and if the cursor has ever been manually placed within the document
|
|
// the following call such as setEndPoint can result in nasty errors. These cases are always cases
|
|
// in which the start and end points can safely be assumed to be 0, so we will just try our best to do
|
|
// the full process but fall back to 0.
|
|
try {
|
|
// Create range containing text in the selection
|
|
var periRange = d.selection.createRange().duplicate();
|
|
// Create range containing text before the selection
|
|
var preRange = d.body.createTextRange();
|
|
// Move the end where we need it
|
|
preRange.setEndPoint( "EndToStart", periRange );
|
|
// Create range containing text after the selection
|
|
var postRange = d.body.createTextRange();
|
|
// 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 ( !postFinished ) {
|
|
if ( preRange.compareEndPoints( "StartToEnd", preRange ) == 0 ) {
|
|
postFinished = true;
|
|
} else {
|
|
preRange.moveEnd( "character", -1 );
|
|
if ( preRange.text == preText ) {
|
|
rawPreText += "\r\n";
|
|
} else {
|
|
postFinished = 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 ( ( !postFinished || !periFinished || !postFinished ) );
|
|
startPos = rawPreText.replace( /\r\n/g, "\n" ).length;
|
|
endPos = startPos + rawPeriText.replace( /\r\n/g, "\n" ).length;
|
|
} catch( e ) {
|
|
startPos = endPos = 0;
|
|
}
|
|
}
|
|
return [ startPos, endPos ];
|
|
},
|
|
/**
|
|
* Sets the selection of the content
|
|
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
|
|
*
|
|
* @param start Character offset of selection start
|
|
* @param end Character offset of selection end
|
|
* @param startContainer Element in iframe to start selection in. If not set, start is a character offset
|
|
* @param endContainer Element in iframe to end selection in. If not set, end is a character offset
|
|
*/
|
|
setSelection: function ( options ) {
|
|
var sc = options.startContainer, ec = options.endContainer;
|
|
sc = sc && sc.jquery ? sc[0] : sc;
|
|
ec = ec && ec.jquery ? ec[0] : ec;
|
|
if ( context.$iframe[0].contentWindow.getSelection ) {
|
|
// Firefox and Opera
|
|
var start = options.start, end = options.end;
|
|
if ( !sc || !ec ) {
|
|
var s = context.fn.getOffset( start );
|
|
var e = context.fn.getOffset( end );
|
|
sc = s ? s.node : null;
|
|
ec = e ? e.node : null;
|
|
start = s ? s.offset : null;
|
|
end = e ? e.offset : null;
|
|
// Don't try to set the selection past the end of a node, causes errors
|
|
// Just put the selection at the end of the node in this case
|
|
if ( sc != null && sc.nodeName == '#text' && start > sc.nodeValue.length ) {
|
|
start = sc.nodeValue.length - 1;
|
|
}
|
|
if ( ec != null && ec.nodeName == '#text' && end > ec.nodeValue.length ) {
|
|
end = ec.nodeValue.length - 1;
|
|
}
|
|
}
|
|
if ( !sc || !ec ) {
|
|
// The requested offset isn't in the offsets array
|
|
// Give up
|
|
return context.$textarea;
|
|
}
|
|
|
|
var sel = context.$iframe[0].contentWindow.getSelection();
|
|
while ( sc.firstChild && sc.nodeName != '#text' ) {
|
|
sc = sc.firstChild;
|
|
}
|
|
while ( ec.firstChild && ec.nodeName != '#text' ) {
|
|
ec = ec.firstChild;
|
|
}
|
|
var range = context.$iframe[0].contentWindow.document.createRange();
|
|
range.setStart( sc, start );
|
|
range.setEnd( ec, end );
|
|
sel.removeAllRanges();
|
|
sel.addRange( range );
|
|
context.$iframe[0].contentWindow.focus();
|
|
} else if ( context.$iframe[0].contentWindow.document.body.createTextRange ) {
|
|
// IE
|
|
var range = context.$iframe[0].contentWindow.document.body.createTextRange();
|
|
if ( sc ) {
|
|
range.moveToElementText( sc );
|
|
}
|
|
range.collapse();
|
|
range.moveEnd( 'character', options.start );
|
|
|
|
var range2 = context.$iframe[0].contentWindow.document.body.createTextRange();
|
|
if ( ec ) {
|
|
range2.moveToElementText( ec );
|
|
}
|
|
range2.collapse();
|
|
range2.moveEnd( 'character', options.end );
|
|
|
|
// IE does newline emulation for <p>s: <p>foo</p><p>bar</p> becomes foo\nbar just fine
|
|
// but <p>foo</p><br><br><p>bar</p> becomes foo\n\n\n\nbar , one \n too many
|
|
// Correct for this
|
|
var matches, counted = 0;
|
|
// while ( matches = range.htmlText.match( regex ) && matches.length <= counted ) doesn't work
|
|
// because the assignment side effect hasn't happened yet when the second term is evaluated
|
|
while ( matches = range.htmlText.match( /\<\/p\>(\<br[^\>]*\>)+\<p\>/gi ) ) {
|
|
if ( matches.length <= counted )
|
|
break;
|
|
range.moveEnd( 'character', matches.length );
|
|
counted += matches.length;
|
|
}
|
|
range2.moveEnd( 'character', counted );
|
|
while ( matches = range2.htmlText.match( /\<\/p\>(\<br[^\>]*\>)+\<p\>/gi ) ) {
|
|
if ( matches.length <= counted )
|
|
break;
|
|
range2.moveEnd( 'character', matches.length );
|
|
counted += matches.length;
|
|
}
|
|
|
|
range2.setEndPoint( 'StartToEnd', range );
|
|
range2.select();
|
|
}
|
|
return context.$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
|
|
*/
|
|
scrollToCaretPosition: function ( options ) {
|
|
context.fn.scrollToTop( context.fn.getElementAtCursor(), true );
|
|
},
|
|
/**
|
|
* Scroll an element to the top of the iframe
|
|
* DO NOT CALL THIS DIRECTLY, use $.textSelection( 'functionname', options ) instead
|
|
*
|
|
* @param $element jQuery object containing an element in the iframe
|
|
* @param force If true, scroll the element even if it's already visible
|
|
*/
|
|
scrollToTop: function ( $element, force ) {
|
|
var html = context.$content.closest( 'html' ),
|
|
body = context.$content.closest( 'body' ),
|
|
parentHtml = $( 'html' ),
|
|
parentBody = $( 'body' );
|
|
var y = $element.offset().top;
|
|
if ( !$.browser.msie && ! $element.is( 'body' ) ) {
|
|
y = parentHtml.scrollTop() > 0 ? y + html.scrollTop() - parentHtml.scrollTop() : y;
|
|
y = parentBody.scrollTop() > 0 ? y + body.scrollTop() - parentBody.scrollTop() : y;
|
|
}
|
|
var topBound = html.scrollTop() > body.scrollTop() ? html.scrollTop() : body.scrollTop(),
|
|
bottomBound = topBound + context.$iframe.height();
|
|
if ( force || y < topBound || y > bottomBound ) {
|
|
html.scrollTop( y );
|
|
body.scrollTop( y );
|
|
}
|
|
$element.trigger( 'scrollToTop' );
|
|
}
|
|
} );
|
|
|
|
/* Setup the IFrame */
|
|
context.fn.setupIframe();
|
|
|
|
} } )( jQuery );
|