https://www.mediawiki.org/wiki/Special:Code/MediaWiki/113322
Revision: 113322
Author: inez
Date: 2012-03-07 23:32:26 +0000 (Wed, 07 Mar 2012)
Log Message:
-----------
Added getDOMNodeAndOffset and showSelection methods to Surface. Ohhh and little
wrapper around it - showCursor.
Modified Paths:
--------------
trunk/extensions/VisualEditor/modules/ve/ce/ve.ce.Surface.js
Modified: trunk/extensions/VisualEditor/modules/ve/ce/ve.ce.Surface.js
===================================================================
--- trunk/extensions/VisualEditor/modules/ve/ce/ve.ce.Surface.js
2012-03-07 23:23:50 UTC (rev 113321)
+++ trunk/extensions/VisualEditor/modules/ve/ce/ve.ce.Surface.js
2012-03-07 23:32:26 UTC (rev 113322)
@@ -563,6 +563,70 @@
}
};
+ve.ce.Surface.prototype.getDOMNodeAndOffset = function( offset ) {
+ var $node = this.documentView.getNodeFromOffset( offset ).$,
+ nodeOffset = this.documentView.getOffsetFromNode(
$node.data('view') ) + 1,
+ current = [$node.contents(), 0],
+ stack = [current],
+ localNode,
+ localOffset;
+
+ while ( stack.length > 0 ) {
+ if ( current[1] >= current[0].length ) {
+ stack.pop();
+ current = stack[ stack.length - 1 ];
+ continue;
+ }
+ var item = current[0][current[1]],
+ $item = current[0].eq( current[1] );
+
+ if ( item.nodeType === 3 ) {
+ var length = item.textContent.length;
+ if ( offset >= nodeOffset && offset <= nodeOffset +
length ) {
+ return {
+ node: item,
+ offset: offset - nodeOffset
+ };
+ break;
+ } else {
+ nodeOffset += length;
+ }
+ } else if ( item.nodeType === 1 ) {
+ if ( $( item ).attr('contentEditable') === 'false' ) {
+ nodeOffset += 1;
+ } else {
+ stack.push( [$item.contents(), 0] );
+ current[1]++;
+ current = stack[stack.length-1];
+ continue;
+ }
+ }
+ current[1]++;
+ }
+ return null;
+};
+
+
+/**
+ * @method
+ */
+ve.ce.Surface.prototype.showCursor = function( offset ) {
+ this.showSelection( new ve.Range( offset ) );
+};
+
+/**
+ * @method
+ */
+ve.ce.Surface.prototype.showSelection = function( range ) {
+ var start = this.getDOMNodeAndOffset( range.start ),
+ stop = this.getDOMNodeAndOffset( range.end ),
+ range = rangy.createRange(),
+ sel = rangy.getSelection();
+ range.setStart( start.node, start.offset );
+ range.setEnd( stop.node, stop.offset );
+ sel.setSingleRange( range );
+};
+
ve.ce.Surface.prototype.getLeafNode = function( elem ) {
var $node = $( elem );
while( !$node.hasClass( 'ce-leafNode' ) ) {
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