$.fn.textSelection = function ( command, options ) {
var fn,
+ alternateFn,
context,
- hasWikiEditorSurface, // The alt edit surface needs to implement the WikiEditor API
+ hasWikiEditor,
needSave,
retval;
}
};
+ alternateFn = $( this ).data( 'jquery.textSelection' );
+
// Apply defaults
switch ( command ) {
//case 'getContents': // no params
force: false // Force a scroll even if the caret position is already visible
}, options );
break;
+ case 'register':
+ if ( alternateFn ) {
+ throw new Error( 'Another textSelection API was already registered' );
+ }
+ $( this ).data( 'jquery.textSelection', options );
+ // No need to update alternateFn as this command only stores the options.
+ // A command that uses it will set it again.
+ return;
+ case 'unregister':
+ $( this ).removeData( 'jquery.textSelection' );
+ return;
}
context = $( this ).data( 'wikiEditor-context' );
- hasWikiEditorSurface = ( context !== undefined && context.$iframe !== undefined );
+ hasWikiEditor = ( context !== undefined && context.$iframe !== undefined );
// IE selection restore voodoo
needSave = false;
- if ( hasWikiEditorSurface && context.savedSelection !== null ) {
+ if ( hasWikiEditor && context.savedSelection !== null ) {
context.fn.restoreSelection();
needSave = true;
}
- retval = ( hasWikiEditorSurface && context.fn[command] !== undefined ? context.fn : fn )[command].call( this, options );
- if ( hasWikiEditorSurface && needSave ) {
+ retval = ( alternateFn && alternateFn[command] || fn[command] ).call( this, options );
+ if ( hasWikiEditor && needSave ) {
context.fn.saveSelection();
}