resources/jquery/jquery.spinner.js

   1 /**
   2  * jQuery Spinner
   3  *
   4  * Simple jQuery plugin to create, inject and remove spinners.
   5  *
   6  * @class jQuery.plugin.spinner
   7  */
   8 ( function ( $ ) {
   9
  10         // Default options for new spinners,
  11         // stored outside the function to share between calls.
  12         var defaults = {
  13                 id: undefined,
  14                 size: 'small',
  15                 type: 'inline'
  16         };
  17
  18         $.extend({
  19                 /**
  20                  * Create a spinner element
  21                  *
  22                  * The argument is an object with options used to construct the spinner. These can be:
  23                  *
  24                  * It is a good practice to keep a reference to the created spinner to be able to remove it later.
  25                  * Alternatively one can use the id option and #removeSpinner (but make sure to choose an id
  26                  * that's unlikely to cause conflicts, e.g. with extensions, gadgets or user scripts).
  27                  *
  28                  * CSS classes used:
  29                  * - .mw-spinner for every spinner
  30                  * - .mw-spinner-small / .mw-spinner-large for size
  31                  * - .mw-spinner-block / .mw-spinner-inline for display types
  32                  *
  33                  *   // Create a large spinner reserving all available horizontal space.
  34                  *   var $spinner = $.createSpinner({ size: 'large', type: 'block' });
  35                  *   // Insert above page content.
  36                  *   $( '#mw-content-text' ).prepend( $spinner );
  37                  *
  38                  *   // Place a small inline spinner next to the "Save" button
  39                  *   var $spinner = $.createSpinner({ size: 'small', type: 'inline' });
  40                  *   // Alternatively, just `$.createSpinner();` as these are the default options.
  41                  *   $( '#wpSave' ).after( $spinner );
  42                  *
  43                  *   // The following two are equivalent:
  44                  *   $.createSpinner( 'magic' );
  45                  *   $.createSpinner({ id: 'magic' });
  46                  *
  47                  * @static
  48                  * @inheritable
  49                  * @param {Object|string} [opts] ID string or options:
  50                  *  - id: If given, spinner will be given an id of "mw-spinner-{id}"
  51                  *  - size: 'small' (default) or 'large' for a 20-pixel or 32-pixel spinner
  52                  *  - type: 'inline' (default) or 'block'. Inline creates an inline-block with width and
  53                  *    height equal to spinner size. Block is a block-level element with width 100%, height
  54                  *    equal to spinner size.
  55                  * @return {jQuery}
  56                  */
  57                 createSpinner: function ( opts ) {
  58                         if ( opts !== undefined && $.type( opts ) !== 'object' ) {
  59                                 opts = {
  60                                         id: opts
  61                                 };
  62                         }
  63
  64                         opts = $.extend( {}, defaults, opts );
  65
  66                         var $spinner = $( '<div>', { 'class': 'mw-spinner', 'title': '...' } );
  67                         if ( opts.id !== undefined ) {
  68                                 $spinner.attr( 'id', 'mw-spinner-' + opts.id );
  69                         }
  70
  71                         $spinner.addClass( opts.size === 'large' ? 'mw-spinner-large' : 'mw-spinner-small' );
  72                         $spinner.addClass( opts.type === 'block' ? 'mw-spinner-block' : 'mw-spinner-inline' );
  73
  74                         return $spinner;
  75                 },
  76
  77                 /**
  78                  * Remove a spinner element
  79                  *
  80                  * @static
  81                  * @inheritable
  82                  * @param {string} id Id of the spinner, as passed to #createSpinner
  83                  * @return {jQuery} The (now detached) spinner element
  84                  */
  85                 removeSpinner: function ( id ) {
  86                         return $( '#mw-spinner-' + id ).remove();
  87                 }
  88         });
  89
  90         /**
  91          * Inject a spinner after each element in the collection
  92          *
  93          * Inserts spinner as siblings, not children, of the target elements.
  94          * Collection contents remain unchanged.
  95          *
  96          * @param {Object|string} [opts] See #createSpinner
  97          * @return {jQuery}
  98          */
  99         $.fn.injectSpinner = function ( opts ) {
 100                 return this.after( $.createSpinner( opts ) );
 101         };
 102
 103         /**
 104          * @class jQuery
 105          * @mixins jQuery.plugin.spinner
 106          */
 107
 108 }( jQuery ) );