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MDL-35569 AJAX Move auto-submitting selects to separate YUI module
sam note: Some changes removed from 2.4 version (deprecation warning, lib/upgrade.txt).
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| YUI.add('moodle-core-formautosubmit', | ||
| function(Y) { | ||
| // The CSS selectors we use | ||
| var CSS = { | ||
| AUTOSUBMIT : 'autosubmit' | ||
| }; | ||
|
|
||
| var FORMAUTOSUBMITNAME = 'core-formautosubmit'; | ||
|
|
||
| var FORMAUTOSUBMIT = function() { | ||
| FORMAUTOSUBMIT.superclass.constructor.apply(this, arguments); | ||
| } | ||
|
|
||
| // We only want to initialize the module fully once | ||
| var INITIALIZED = false; | ||
|
|
||
| Y.extend(FORMAUTOSUBMIT, Y.Base, { | ||
|
|
||
| /** | ||
| * Initialize the module | ||
| */ | ||
| initializer : function(config) { | ||
| // We only apply the delegation once | ||
| if (!INITIALIZED) { | ||
| INITIALIZED = true; | ||
| var applyto = Y.one('body'); | ||
|
|
||
| // We don't listen for change events by default as using the keyboard triggers these too. | ||
| applyto.delegate('key', this.process_changes, 'press:13', 'select.' + CSS.AUTOSUBMIT, this); | ||
| applyto.delegate('click', this.process_changes, 'select.' + CSS.AUTOSUBMIT, this); | ||
|
|
||
| if (Y.UA.os == 'macintosh' && Y.UA.webkit) { | ||
| // Macintosh webkit browsers like change events, but non-macintosh webkit browsers don't. | ||
| applyto.delegate('change', this.process_changes, 'select.' + CSS.AUTOSUBMIT, this); | ||
| } | ||
| if (Y.UA.ios) { | ||
| // IOS doesn't trigger click events because it's touch-based. | ||
| applyto.delegate('change', this.process_changes, 'select.' + CSS.AUTOSUBMIT, this); | ||
| } | ||
| } | ||
|
|
||
| // Assign this select items 'nothing' value and lastindex (current value) | ||
| var thisselect = Y.one('select#' + this.get('selectid')); | ||
| thisselect.setData('nothing', this.get('nothing')); | ||
| thisselect.setData('startindex', thisselect.get('selectedIndex')); | ||
| }, | ||
|
|
||
| /** | ||
| * Check whether the select element was changed | ||
| */ | ||
| check_changed : function(e) { | ||
| var select = e.target.ancestor('select.' + CSS.AUTOSUBMIT, true); | ||
| if (!select) { | ||
| return false; | ||
| } | ||
|
|
||
| var nothing = select.getData('nothing'); | ||
| var startindex = select.getData('startindex'); | ||
| var currentindex = select.get('selectedIndex'); | ||
|
|
||
| var previousindex = select.getAttribute('data-previousindex'); | ||
| select.setAttribute('data-previousindex', currentindex); | ||
| if (!previousindex) { | ||
| previousindex = startindex; | ||
| } | ||
|
|
||
| // Check whether the field has changed, and is not the 'nothing' value | ||
| if ((nothing===false || select.get('value') != nothing) && startindex != select.get('selectedIndex') && currentindex != previousindex) { | ||
| return select; | ||
| } | ||
| return false; | ||
| }, | ||
|
|
||
| /** | ||
| * Process any changes | ||
| */ | ||
| process_changes : function(e) { | ||
| var select = this.check_changed(e); | ||
| if (select) { | ||
| var form = select.ancestor('form', true); | ||
| form.submit(); | ||
| } | ||
| } | ||
| }, | ||
| { | ||
| NAME : FORMAUTOSUBMITNAME, | ||
| ATTRS : { | ||
| selectid : { | ||
| 'value' : '' | ||
| }, | ||
| nothing : { | ||
| 'value' : '' | ||
| }, | ||
| ignorechangeevent : { | ||
| 'value' : false | ||
| } | ||
| } | ||
| }); | ||
|
|
||
| M.core = M.core || {}; | ||
| M.core.init_formautosubmit = M.core.init_formautosubmit || function(config) { | ||
| return new FORMAUTOSUBMIT(config); | ||
| }; | ||
| }, | ||
| '@VERSION@', { | ||
| requires : ['base', 'event-key'] | ||
| } | ||
| ); |
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