1 // Miscellaneous core Javascript functions for Moodle
2 // Global M object is initilised in inline javascript
5 * Add module to list of available modules that can be loaded from YUI.
6 * @param {Array} modules
8 M.yui.add_module = function(modules) {
9 for (var modname in modules) {
10 YUI_config.modules[modname] = modules[modname];
12 // Ensure thaat the YUI_config is applied to the main YUI instance.
13 Y.applyConfig(YUI_config);
16 * The gallery version to use when loading YUI modules from the gallery.
17 * Will be changed every time when using local galleries.
19 M.yui.galleryversion = '2010.04.21-21-51';
22 * Various utility functions
24 M.util = M.util || {};
27 * Language strings - initialised from page footer.
32 * Returns url for images.
33 * @param {String} imagename
34 * @param {String} component
37 M.util.image_url = function(imagename, component) {
39 if (!component || component == '' || component == 'moodle' || component == 'core') {
43 var url = M.cfg.wwwroot + '/theme/image.php';
44 if (M.cfg.themerev > 0 && M.cfg.slasharguments == 1) {
45 if (!M.cfg.svgicons) {
48 url += '/' + M.cfg.theme + '/' + component + '/' + M.cfg.themerev + '/' + imagename;
50 url += '?theme=' + M.cfg.theme + '&component=' + component + '&rev=' + M.cfg.themerev + '&image=' + imagename;
51 if (!M.cfg.svgicons) {
59 M.util.in_array = function(item, array){
60 for( var i = 0; i<array.length; i++){
69 * Init a collapsible region, see print_collapsible_region in weblib.php
70 * @param {YUI} Y YUI3 instance with all libraries loaded
71 * @param {String} id the HTML id for the div.
72 * @param {String} userpref the user preference that records the state of this box. false if none.
73 * @param {String} strtooltip
75 M.util.init_collapsible_region = function(Y, id, userpref, strtooltip) {
76 Y.use('anim', function(Y) {
77 new M.util.CollapsibleRegion(Y, id, userpref, strtooltip);
82 * Object to handle a collapsible region : instantiate and forget styled object
86 * @param {YUI} Y YUI3 instance with all libraries loaded
87 * @param {String} id The HTML id for the div.
88 * @param {String} userpref The user preference that records the state of this box. false if none.
89 * @param {String} strtooltip
91 M.util.CollapsibleRegion = function(Y, id, userpref, strtooltip) {
92 // Record the pref name
93 this.userpref = userpref;
95 // Find the divs in the document.
96 this.div = Y.one('#'+id);
98 // Get the caption for the collapsible region
99 var caption = this.div.one('#'+id + '_caption');
102 var a = Y.Node.create('<a href="#"></a>');
103 a.setAttribute('title', strtooltip);
105 // Get all the nodes from caption, remove them and append them to <a>
106 while (caption.hasChildNodes()) {
107 child = caption.get('firstChild');
113 // Get the height of the div at this point before we shrink it if required
114 var height = this.div.get('offsetHeight');
115 var collapsedimage = 't/collapsed'; // ltr mode
116 if (right_to_left()) {
117 collapsedimage = 't/collapsed_rtl';
119 collapsedimage = 't/collapsed';
121 if (this.div.hasClass('collapsed')) {
122 // Add the correct image and record the YUI node created in the process
123 this.icon = Y.Node.create('<img src="'+M.util.image_url(collapsedimage, 'moodle')+'" alt="" />');
124 // Shrink the div as it is collapsed by default
125 this.div.setStyle('height', caption.get('offsetHeight')+'px');
127 // Add the correct image and record the YUI node created in the process
128 this.icon = Y.Node.create('<img src="'+M.util.image_url('t/expanded', 'moodle')+'" alt="" />');
132 // Create the animation.
133 var animation = new Y.Anim({
136 easing: Y.Easing.easeBoth,
137 to: {height:caption.get('offsetHeight')},
138 from: {height:height}
141 // Handler for the animation finishing.
142 animation.on('end', function() {
143 this.div.toggleClass('collapsed');
144 var collapsedimage = 't/collapsed'; // ltr mode
145 if (right_to_left()) {
146 collapsedimage = 't/collapsed_rtl';
148 collapsedimage = 't/collapsed';
150 if (this.div.hasClass('collapsed')) {
151 this.icon.set('src', M.util.image_url(collapsedimage, 'moodle'));
153 this.icon.set('src', M.util.image_url('t/expanded', 'moodle'));
157 // Hook up the event handler.
158 a.on('click', function(e, animation) {
160 // Animate to the appropriate size.
161 if (animation.get('running')) {
164 animation.set('reverse', this.div.hasClass('collapsed'));
165 // Update the user preference.
167 M.util.set_user_preference(this.userpref, !this.div.hasClass('collapsed'));
174 * The user preference that stores the state of this box.
178 M.util.CollapsibleRegion.prototype.userpref = null;
181 * The key divs that make up this
185 M.util.CollapsibleRegion.prototype.div = null;
188 * The key divs that make up this
192 M.util.CollapsibleRegion.prototype.icon = null;
195 * Makes a best effort to connect back to Moodle to update a user preference,
196 * however, there is no mechanism for finding out if the update succeeded.
198 * Before you can use this function in your JavsScript, you must have called
199 * user_preference_allow_ajax_update from moodlelib.php to tell Moodle that
200 * the udpate is allowed, and how to safely clean and submitted values.
202 * @param String name the name of the setting to udpate.
203 * @param String the value to set it to.
205 M.util.set_user_preference = function(name, value) {
206 YUI().use('io', function(Y) {
207 var url = M.cfg.wwwroot + '/lib/ajax/setuserpref.php?sesskey=' +
208 M.cfg.sesskey + '&pref=' + encodeURI(name) + '&value=' + encodeURI(value);
210 // If we are a developer, ensure that failures are reported.
215 if (M.cfg.developerdebug) {
216 cfg.on.failure = function(id, o, args) {
217 alert("Error updating user preference '" + name + "' using ajax. Clicking this link will repeat the Ajax call that failed so you can see the error: ");
227 * Prints a confirmation dialog in the style of DOM.confirm().
229 * @method show_confirm_dialog
230 * @param {EventFacade} e
231 * @param {Object} args
232 * @param {String} args.message The question to ask the user
233 * @param {Function} [args.callback] A callback to apply on confirmation.
234 * @param {Object} [args.scope] The scope to use when calling the callback.
235 * @param {Object} [args.callbackargs] Any arguments to pass to the callback.
236 * @param {String} [args.cancellabel] The label to use on the cancel button.
237 * @param {String} [args.continuelabel] The label to use on the continue button.
239 M.util.show_confirm_dialog = function(e, args) {
240 var target = e.target;
241 if (e.preventDefault) {
245 require(['core_form/changechecker'], function(FormChangeChecker) {
246 // eslint-disable-next-line no-undef, new-cap
247 YUI().use('moodle-core-notification-confirm', function(Y) {
248 var confirmationDialogue = new M.core.confirm({
254 title: M.util.get_string('confirmation', 'admin'),
255 noLabel: M.util.get_string('cancel', 'moodle'),
256 question: args.message
259 // The dialogue was submitted with a positive value indication.
260 confirmationDialogue.on('complete-yes', function(e) {
261 // Handle any callbacks.
263 if (!Y.Lang.isFunction(args.callback)) {
264 Y.log('Callbacks to show_confirm_dialog must now be functions. ' +
265 'Please update your code to pass in a function instead.',
266 'warn', 'M.util.show_confirm_dialog');
270 var scope = e.target;
271 if (Y.Lang.isObject(args.scope)) {
275 var callbackargs = args.callbackargs || [];
276 args.callback.apply(scope, callbackargs);
280 var targetancestor = null,
283 if (target.test('a')) {
284 window.location = target.get('href');
286 } else if ((targetancestor = target.ancestor('a')) !== null) {
287 window.location = targetancestor.get('href');
289 } else if (target.test('input') || target.test('button')) {
290 targetform = target.ancestor('form', true);
294 if (target.get('name') && target.get('value')) {
295 targetform.append('<input type="hidden" name="' + target.get('name') +
296 '" value="' + target.get('value') + '">');
297 FormChangeChecker.markFormAsDirty(targetform.getDOMNode());
301 } else if (target.test('form')) {
302 FormChangeChecker.markFormAsDirty(target.getDOMNode());
306 Y.log("Element of type " + target.get('tagName') +
307 " is not supported by the M.util.show_confirm_dialog function. Use A, INPUT, BUTTON or FORM",
308 'warn', 'javascript-static');
312 if (args.cancellabel) {
313 confirmationDialogue.set('noLabel', args.cancellabel);
316 if (args.continuelabel) {
317 confirmationDialogue.set('yesLabel', args.continuelabel);
320 confirmationDialogue.render()
326 /** Useful for full embedding of various stuff */
327 M.util.init_maximised_embed = function(Y, id) {
328 var obj = Y.one('#'+id);
333 var get_htmlelement_size = function(el, prop) {
334 if (Y.Lang.isString(el)) {
335 el = Y.one('#' + el);
337 // Ensure element exists.
339 var val = el.getStyle(prop);
341 val = el.getComputedStyle(prop);
353 var resize_object = function() {
354 obj.setStyle('display', 'none');
355 var newwidth = get_htmlelement_size('maincontent', 'width') - 35;
357 if (newwidth > 500) {
358 obj.setStyle('width', newwidth + 'px');
360 obj.setStyle('width', '500px');
363 var headerheight = get_htmlelement_size('page-header', 'height');
364 var footerheight = get_htmlelement_size('page-footer', 'height');
365 var newheight = parseInt(Y.one('body').get('docHeight')) - footerheight - headerheight - 100;
366 if (newheight < 400) {
369 obj.setStyle('height', newheight+'px');
370 obj.setStyle('display', '');
374 // fix layout if window resized too
375 Y.use('event-resize', function (Y) {
376 Y.on("windowresize", function() {
383 * Breaks out all links to the top frame - used in frametop page layout.
385 M.util.init_frametop = function(Y) {
386 Y.all('a').each(function(node) {
387 node.set('target', '_top');
389 Y.all('form').each(function(node) {
390 node.set('target', '_top');
395 * @deprecated since Moodle 3.3
397 M.util.init_toggle_class_on_click = function(Y, id, cssselector, toggleclassname, togglecssselector) {
398 throw new Error('M.util.init_toggle_class_on_click can not be used any more. Please use jQuery instead.');
402 * Initialises a colour picker
404 * Designed to be used with admin_setting_configcolourpicker although could be used
405 * anywhere, just give a text input an id and insert a div with the class admin_colourpicker
406 * above or below the input (must have the same parent) and then call this with the
409 * This code was mostly taken from my [Sam Hemelryk] css theme tool available in
410 * contrib/blocks. For better docs refer to that.
414 * @param {object} previewconf
416 M.util.init_colour_picker = function(Y, id, previewconf) {
418 * We need node and event-mouseenter
420 Y.use('node', 'event-mouseenter', function(){
422 * The colour picker object
431 eventMouseEnter : null,
432 eventMouseLeave : null,
433 eventMouseMove : null,
438 * Initalises the colour picker by putting everything together and wiring the events
441 this.input = Y.one('#'+id);
442 this.box = this.input.ancestor().one('.admin_colourpicker');
443 this.image = Y.Node.create('<img alt="" class="colourdialogue" />');
444 this.image.setAttribute('src', M.util.image_url('i/colourpicker', 'moodle'));
445 this.preview = Y.Node.create('<div class="previewcolour"></div>');
446 this.preview.setStyle('width', this.height/2).setStyle('height', this.height/2).setStyle('backgroundColor', this.input.get('value'));
447 this.current = Y.Node.create('<div class="currentcolour"></div>');
448 this.current.setStyle('width', this.height/2).setStyle('height', this.height/2 -1).setStyle('backgroundColor', this.input.get('value'));
449 this.box.setContent('').append(this.image).append(this.preview).append(this.current);
451 if (typeof(previewconf) === 'object' && previewconf !== null) {
452 Y.one('#'+id+'_preview').on('click', function(e){
453 if (Y.Lang.isString(previewconf.selector)) {
454 Y.all(previewconf.selector).setStyle(previewconf.style, this.input.get('value'));
456 for (var i in previewconf.selector) {
457 Y.all(previewconf.selector[i]).setStyle(previewconf.style, this.input.get('value'));
463 this.eventClick = this.image.on('click', this.pickColour, this);
464 this.eventMouseEnter = Y.on('mouseenter', this.startFollow, this.image, this);
467 * Starts to follow the mouse once it enter the image
469 startFollow : function(e) {
470 this.eventMouseEnter.detach();
471 this.eventMouseLeave = Y.on('mouseleave', this.endFollow, this.image, this);
472 this.eventMouseMove = this.image.on('mousemove', function(e){
473 this.preview.setStyle('backgroundColor', this.determineColour(e));
477 * Stops following the mouse
479 endFollow : function(e) {
480 this.eventMouseMove.detach();
481 this.eventMouseLeave.detach();
482 this.eventMouseEnter = Y.on('mouseenter', this.startFollow, this.image, this);
485 * Picks the colour the was clicked on
487 pickColour : function(e) {
488 var colour = this.determineColour(e);
489 this.input.set('value', colour);
490 this.current.setStyle('backgroundColor', colour);
493 * Calculates the colour fromthe given co-ordinates
495 determineColour : function(e) {
496 var eventx = Math.floor(e.pageX-e.target.getX());
497 var eventy = Math.floor(e.pageY-e.target.getY());
499 var imagewidth = this.width;
500 var imageheight = this.height;
501 var factor = this.factor;
502 var colour = [255,0,0];
513 var matrixcount = matrices.length;
514 var limit = Math.round(imagewidth/matrixcount);
515 var heightbreak = Math.round(imageheight/2);
517 for (var x = 0; x < imagewidth; x++) {
518 var divisor = Math.floor(x / limit);
519 var matrix = matrices[divisor];
521 colour[0] += matrix[0]*factor;
522 colour[1] += matrix[1]*factor;
523 colour[2] += matrix[2]*factor;
530 var pixel = [colour[0], colour[1], colour[2]];
531 if (eventy < heightbreak) {
532 pixel[0] += Math.floor(((255-pixel[0])/heightbreak) * (heightbreak - eventy));
533 pixel[1] += Math.floor(((255-pixel[1])/heightbreak) * (heightbreak - eventy));
534 pixel[2] += Math.floor(((255-pixel[2])/heightbreak) * (heightbreak - eventy));
535 } else if (eventy > heightbreak) {
536 pixel[0] = Math.floor((imageheight-eventy)*(pixel[0]/heightbreak));
537 pixel[1] = Math.floor((imageheight-eventy)*(pixel[1]/heightbreak));
538 pixel[2] = Math.floor((imageheight-eventy)*(pixel[2]/heightbreak));
541 return this.convert_rgb_to_hex(pixel);
544 * Converts an RGB value to Hex
546 convert_rgb_to_hex : function(rgb) {
548 var hexchars = "0123456789ABCDEF";
549 for (var i=0; i<3; i++) {
550 var number = Math.abs(rgb[i]);
551 if (number == 0 || isNaN(number)) {
554 hex += hexchars.charAt((number-number%16)/16)+hexchars.charAt(number%16);
561 * Initialise the colour picker :) Hoorah
567 M.util.init_block_hider = function(Y, config) {
568 Y.use('base', 'node', function(Y) {
569 M.util.block_hider = M.util.block_hider || (function(){
570 var blockhider = function() {
571 blockhider.superclass.constructor.apply(this, arguments);
573 blockhider.prototype = {
574 initializer : function(config) {
575 this.set('block', '#'+this.get('id'));
576 var b = this.get('block'),
581 if (t && (a = t.one('.block_action'))) {
582 hide = Y.Node.create('<img />')
583 .addClass('block-hider-hide')
585 alt: config.tooltipVisible,
586 src: this.get('iconVisible'),
588 'title': config.tooltipVisible
590 hide.on('keypress', this.updateStateKey, this, true);
591 hide.on('click', this.updateState, this, true);
593 show = Y.Node.create('<img />')
594 .addClass('block-hider-show')
596 alt: config.tooltipHidden,
597 src: this.get('iconHidden'),
599 'title': config.tooltipHidden
601 show.on('keypress', this.updateStateKey, this, false);
602 show.on('click', this.updateState, this, false);
604 a.insert(show, 0).insert(hide, 0);
607 updateState : function(e, hide) {
608 M.util.set_user_preference(this.get('preference'), hide);
610 this.get('block').addClass('hidden');
611 this.get('block').one('.block-hider-show').focus();
613 this.get('block').removeClass('hidden');
614 this.get('block').one('.block-hider-hide').focus();
617 updateStateKey : function(e, hide) {
618 if (e.keyCode == 13) { //allow hide/show via enter key
619 this.updateState(this, hide);
623 Y.extend(blockhider, Y.Base, blockhider.prototype, {
629 value : M.util.image_url('t/switch_minus', 'moodle')
632 value : M.util.image_url('t/switch_plus', 'moodle')
635 setter : function(node) {
643 new M.util.block_hider(config);
648 * @var pending_js - The keys are the list of all pending js actions.
651 M.util.pending_js = [];
652 M.util.complete_js = [];
655 * Register any long running javascript code with a unique identifier.
656 * This is used to ensure that Behat steps do not continue with interactions until the page finishes loading.
658 * All calls to M.util.js_pending _must_ be followed by a subsequent call to M.util.js_complete with the same exact
661 * This function may also be called with no arguments to test if there is any js calls pending.
663 * The uniqid specified may be any Object, including Number, String, or actual Object; however please note that the
664 * paired js_complete function performs a strict search for the key specified. As such, if using an Object, the exact
665 * Object must be passed into both functions.
667 * @param {Mixed} uniqid Register long-running code against the supplied identifier
668 * @return {Number} Number of pending items
670 M.util.js_pending = function(uniqid) {
671 if (typeof uniqid !== 'undefined') {
672 M.util.pending_js.push(uniqid);
675 return M.util.pending_js.length;
679 M.util.js_pending('init');
682 * Register listeners for Y.io start/end so we can wait for them in behat.
684 YUI.add('moodle-core-io', function(Y) {
685 Y.on('io:start', function(id) {
686 M.util.js_pending('io:' + id);
688 Y.on('io:end', function(id) {
689 M.util.js_complete('io:' + id);
699 * Unregister some long running javascript code using the unique identifier specified in M.util.js_pending.
701 * This function must be matched with an identical call to M.util.js_pending.
703 * @param {Mixed} uniqid Register long-running code against the supplied identifier
704 * @return {Number} Number of pending items remaining after removing this item
706 M.util.js_complete = function(uniqid) {
707 // Use the Y.Array.indexOf instead of the native because some older browsers do not support
708 // the native function. Y.Array polyfills the native function if it does not exist.
709 var index = Y.Array.indexOf(M.util.pending_js, uniqid);
711 M.util.complete_js.push(M.util.pending_js.splice(index, 1));
713 window.console.log("Unable to locate key for js_complete call", uniqid);
716 return M.util.pending_js.length;
720 * Returns a string registered in advance for usage in JavaScript
722 * If you do not pass the third parameter, the function will just return
723 * the corresponding value from the M.str object. If the third parameter is
724 * provided, the function performs {$a} placeholder substitution in the
725 * same way as PHP get_string() in Moodle does.
727 * @param {String} identifier string identifier
728 * @param {String} component the component providing the string
729 * @param {Object|String} a optional variable to populate placeholder with
731 M.util.get_string = function(identifier, component, a) {
734 if (M.cfg.developerdebug) {
735 // creating new instance if YUI is not optimal but it seems to be better way then
736 // require the instance via the function API - note that it is used in rare cases
737 // for debugging only anyway
738 // To ensure we don't kill browser performance if hundreds of get_string requests
739 // are made we cache the instance we generate within the M.util namespace.
740 // We don't publicly define the variable so that it doesn't get abused.
741 if (typeof M.util.get_string_yui_instance === 'undefined') {
742 M.util.get_string_yui_instance = new YUI({ debug : true });
744 var Y = M.util.get_string_yui_instance;
747 if (!M.str.hasOwnProperty(component) || !M.str[component].hasOwnProperty(identifier)) {
748 stringvalue = '[[' + identifier + ',' + component + ']]';
749 if (M.cfg.developerdebug) {
750 Y.log('undefined string ' + stringvalue, 'warn', 'M.util.get_string');
755 stringvalue = M.str[component][identifier];
757 if (typeof a == 'undefined') {
758 // no placeholder substitution requested
762 if (typeof a == 'number' || typeof a == 'string') {
763 // replace all occurrences of {$a} with the placeholder value
764 stringvalue = stringvalue.replace(/\{\$a\}/g, a);
768 if (typeof a == 'object') {
769 // replace {$a->key} placeholders
771 if (typeof a[key] != 'number' && typeof a[key] != 'string') {
772 if (M.cfg.developerdebug) {
773 Y.log('invalid value type for $a->' + key, 'warn', 'M.util.get_string');
777 var search = '{$a->' + key + '}';
778 search = search.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&');
779 search = new RegExp(search, 'g');
780 stringvalue = stringvalue.replace(search, a[key]);
785 if (M.cfg.developerdebug) {
786 Y.log('incorrect placeholder type', 'warn', 'M.util.get_string');
792 * Set focus on username or password field of the login form.
793 * @deprecated since Moodle 3.3.
795 M.util.focus_login_form = function(Y) {
796 Y.log('M.util.focus_login_form no longer does anything. Please use jquery instead.', 'warn', 'javascript-static.js');
800 * Set focus on login error message.
801 * @deprecated since Moodle 3.3.
803 M.util.focus_login_error = function(Y) {
804 Y.log('M.util.focus_login_error no longer does anything. Please use jquery instead.', 'warn', 'javascript-static.js');
808 * Adds lightbox hidden element that covers the whole node.
811 * @param {Node} the node lightbox should be added to
812 * @retun {Node} created lightbox node
814 M.util.add_lightbox = function(Y, node) {
815 var WAITICON = {'pix':"i/loading_small",'component':'moodle'};
817 // Check if lightbox is already there
818 if (node.one('.lightbox')) {
819 return node.one('.lightbox');
822 node.setStyle('position', 'relative');
823 var waiticon = Y.Node.create('<img />')
825 'src' : M.util.image_url(WAITICON.pix, WAITICON.component)
828 'position' : 'relative',
832 var lightbox = Y.Node.create('<div></div>')
835 'position' : 'absolute',
840 'backgroundColor' : 'white',
841 'textAlign' : 'center'
843 .setAttribute('class', 'lightbox')
846 lightbox.appendChild(waiticon);
847 node.append(lightbox);
852 * Appends a hidden spinner element to the specified node.
855 * @param {Node} the node the spinner should be added to
856 * @return {Node} created spinner node
858 M.util.add_spinner = function(Y, node) {
859 var WAITICON = {'pix':"i/loading_small",'component':'moodle'};
861 // Check if spinner is already there
862 if (node.one('.spinner')) {
863 return node.one('.spinner');
866 var spinner = Y.Node.create('<img />')
867 .setAttribute('src', M.util.image_url(WAITICON.pix, WAITICON.component))
869 .addClass('iconsmall')
872 node.append(spinner);
877 * @deprecated since Moodle 3.3.
879 function checkall() {
880 throw new Error('checkall can not be used any more. Please use jQuery instead.');
884 * @deprecated since Moodle 3.3.
886 function checknone() {
887 throw new Error('checknone can not be used any more. Please use jQuery instead.');
891 * @deprecated since Moodle 3.3.
893 function select_all_in_element_with_id(id, checked) {
894 throw new Error('select_all_in_element_with_id can not be used any more. Please use jQuery instead.');
898 * @deprecated since Moodle 3.3.
900 function select_all_in(elTagName, elClass, elId) {
901 throw new Error('select_all_in can not be used any more. Please use jQuery instead.');
905 * @deprecated since Moodle 3.3.
907 function deselect_all_in(elTagName, elClass, elId) {
908 throw new Error('deselect_all_in can not be used any more. Please use jQuery instead.');
912 * @deprecated since Moodle 3.3.
914 function confirm_if(expr, message) {
915 throw new Error('confirm_if can not be used any more.');
919 * @deprecated since Moodle 3.3.
921 function findParentNode(el, elName, elClass, elId) {
922 throw new Error('findParentNode can not be used any more. Please use jQuery instead.');
925 function unmaskPassword(id) {
926 var pw = document.getElementById(id);
927 var chb = document.getElementById(id+'unmask');
929 // MDL-30438 - The capability to changing the value of input type is not supported by IE8 or lower.
930 // Replacing existing child with a new one, removed all yui properties for the node. Therefore, this
931 // functionality won't work in IE8 or lower.
932 // This is a temporary fixed to allow other browsers to function properly.
933 if (Y.UA.ie == 0 || Y.UA.ie >= 9) {
937 pw.type = "password";
939 } else { //IE Browser version 8 or lower
941 // first try IE way - it can not set name attribute later
943 var newpw = document.createElement('<input type="text" autocomplete="off" name="'+pw.name+'">');
945 var newpw = document.createElement('<input type="password" autocomplete="off" name="'+pw.name+'">');
947 newpw.attributes['class'].nodeValue = pw.attributes['class'].nodeValue;
949 var newpw = document.createElement('input');
950 newpw.setAttribute('autocomplete', 'off');
951 newpw.setAttribute('name', pw.name);
953 newpw.setAttribute('type', 'text');
955 newpw.setAttribute('type', 'password');
957 newpw.setAttribute('class', pw.getAttribute('class'));
960 newpw.size = pw.size;
961 newpw.onblur = pw.onblur;
962 newpw.onchange = pw.onchange;
963 newpw.value = pw.value;
964 pw.parentNode.replaceChild(newpw, pw);
969 * @deprecated since Moodle 3.3.
971 function filterByParent(elCollection, parentFinder) {
972 throw new Error('filterByParent can not be used any more. Please use jQuery instead.');
976 * @deprecated since Moodle 3.3, but shouldn't be used in earlier versions either.
978 function fix_column_widths() {
979 Y.log('fix_column_widths() no longer does anything. Please remove it from your code.', 'warn', 'javascript-static.js');
983 * @deprecated since Moodle 3.3, but shouldn't be used in earlier versions either.
985 function fix_column_width(colName) {
986 Y.log('fix_column_width() no longer does anything. Please remove it from your code.', 'warn', 'javascript-static.js');
991 Insert myValue at current cursor position
993 function insertAtCursor(myField, myValue) {
995 if (document.selection) {
997 sel = document.selection.createRange();
1000 // Mozilla/Netscape support
1001 else if (myField.selectionStart || myField.selectionStart == '0') {
1002 var startPos = myField.selectionStart;
1003 var endPos = myField.selectionEnd;
1004 myField.value = myField.value.substring(0, startPos)
1005 + myValue + myField.value.substring(endPos, myField.value.length);
1007 myField.value += myValue;
1012 * Increment a file name.
1014 * @param string file name.
1015 * @param boolean ignoreextension do not extract the extension prior to appending the
1016 * suffix. Useful when incrementing folder names.
1017 * @return string the incremented file name.
1019 function increment_filename(filename, ignoreextension) {
1021 var basename = filename;
1023 // Split the file name into the basename + extension.
1024 if (!ignoreextension) {
1025 var dotpos = filename.lastIndexOf('.');
1026 if (dotpos !== -1) {
1027 basename = filename.substr(0, dotpos);
1028 extension = filename.substr(dotpos, filename.length);
1032 // Look to see if the name already has (NN) at the end of it.
1034 var hasnumber = basename.match(/^(.*) \((\d+)\)$/);
1035 if (hasnumber !== null) {
1036 // Note the current number & remove it from the basename.
1037 number = parseInt(hasnumber[2], 10);
1038 basename = hasnumber[1];
1042 var newname = basename + ' (' + number + ')' + extension;
1047 * Return whether we are in right to left mode or not.
1051 function right_to_left() {
1052 var body = Y.one('body');
1054 if (body && body.hasClass('dir-rtl')) {
1060 function openpopup(event, args) {
1063 if (event.preventDefault) {
1064 event.preventDefault();
1066 event.returnValue = false;
1070 // Make sure the name argument is set and valid.
1071 var nameregex = /[^a-z0-9_]/i;
1072 if (typeof args.name !== 'string') {
1073 args.name = '_blank';
1074 } else if (args.name.match(nameregex)) {
1075 // Cleans window name because IE does not support funky ones.
1076 if (M.cfg.developerdebug) {
1077 alert('DEVELOPER NOTICE: Invalid \'name\' passed to openpopup(): ' + args.name);
1079 args.name = args.name.replace(nameregex, '_');
1082 var fullurl = args.url;
1083 if (!args.url.match(/https?:\/\//)) {
1084 fullurl = M.cfg.wwwroot + args.url;
1086 if (args.fullscreen) {
1087 args.options = args.options.
1088 replace(/top=\d+/, 'top=0').
1089 replace(/left=\d+/, 'left=0').
1090 replace(/width=\d+/, 'width=' + screen.availWidth).
1091 replace(/height=\d+/, 'height=' + screen.availHeight);
1093 var windowobj = window.open(fullurl,args.name,args.options);
1098 if (args.fullscreen) {
1099 // In some browser / OS combinations (E.g. Chrome on Windows), the
1100 // window initially opens slighly too big. The width and heigh options
1101 // seem to control the area inside the browser window, so what with
1102 // scroll-bars, etc. the actual window is bigger than the screen.
1103 // Therefore, we need to fix things up after the window is open.
1104 var hackcount = 100;
1105 var get_size_exactly_right = function() {
1106 windowobj.moveTo(0, 0);
1107 windowobj.resizeTo(screen.availWidth, screen.availHeight);
1109 // Unfortunately, it seems that in Chrome on Ubuntu, if you call
1110 // something like windowobj.resizeTo(1280, 1024) too soon (up to
1111 // about 50ms) after the window is open, then it actually behaves
1112 // as if you called windowobj.resizeTo(0, 0). Therefore, we need to
1113 // check that the resize actually worked, and if not, repeatedly try
1114 // again after a short delay until it works (but with a limit of
1115 // hackcount repeats.
1116 if (hackcount > 0 && (windowobj.innerHeight < 10 || windowobj.innerWidth < 10)) {
1118 setTimeout(get_size_exactly_right, 10);
1121 setTimeout(get_size_exactly_right, 0);
1128 /** Close the current browser window. */
1129 function close_window(e) {
1130 if (e.preventDefault) {
1133 e.returnValue = false;
1139 * Tranfer keyboard focus to the HTML element with the given id, if it exists.
1140 * @param controlid the control id.
1142 function focuscontrol(controlid) {
1143 var control = document.getElementById(controlid);
1150 * Transfers keyboard focus to an HTML element based on the old style style of focus
1151 * This function should be removed as soon as it is no longer used
1153 function old_onload_focus(formid, controlname) {
1154 if (document.forms[formid] && document.forms[formid].elements && document.forms[formid].elements[controlname]) {
1155 document.forms[formid].elements[controlname].focus();
1159 function build_querystring(obj) {
1160 return convert_object_to_string(obj, '&');
1163 function build_windowoptionsstring(obj) {
1164 return convert_object_to_string(obj, ',');
1167 function convert_object_to_string(obj, separator) {
1168 if (typeof obj !== 'object') {
1173 k = encodeURIComponent(k);
1175 if(obj[k] instanceof Array) {
1176 for(var i in value) {
1177 list.push(k+'[]='+encodeURIComponent(value[i]));
1180 list.push(k+'='+encodeURIComponent(value));
1183 return list.join(separator);
1187 * @deprecated since Moodle 3.3.
1189 function stripHTML(str) {
1190 throw new Error('stripHTML can not be used any more. Please use jQuery instead.');
1193 function updateProgressBar(id, percent, msg, estimate) {
1195 el = document.getElementById(id),
1202 eventData.message = msg;
1203 eventData.percent = percent;
1204 eventData.estimate = estimate;
1207 event = new CustomEvent('update', {
1212 } catch (exception) {
1213 if (!(exception instanceof TypeError)) {
1216 event = document.createEvent('CustomEvent');
1217 event.initCustomEvent('update', false, true, eventData);
1218 event.prototype = window.Event.prototype;
1221 el.dispatchEvent(event);
1224 M.util.help_popups = {
1225 setup : function(Y) {
1226 Y.one('body').delegate('click', this.open_popup, 'a.helplinkpopup', this);
1228 open_popup : function(e) {
1229 // Prevent the default page action
1232 // Grab the anchor that was clicked
1233 var anchor = e.target.ancestor('a', true);
1236 'url' : anchor.getAttribute('href'),
1254 args.options = options.join(',');
1261 * Custom menu namespace
1263 M.core_custom_menu = {
1265 * This method is used to initialise a custom menu given the id that belongs
1266 * to the custom menu's root node.
1269 * @param {string} nodeid
1271 init : function(Y, nodeid) {
1272 var node = Y.one('#'+nodeid);
1274 Y.use('node-menunav', function(Y) {
1276 // Remove the javascript-disabled class.... obviously javascript is enabled.
1277 node.removeClass('javascript-disabled');
1278 // Initialise the menunav plugin
1279 node.plug(Y.Plugin.NodeMenuNav);
1286 * Used to store form manipulation methods and enhancments
1288 M.form = M.form || {};
1291 * Converts a nbsp indented select box into a multi drop down custom control much
1292 * like the custom menu. Can no longer be used.
1293 * @deprecated since Moodle 3.3
1295 M.form.init_smartselect = function() {
1296 throw new Error('M.form.init_smartselect can not be used any more.');
1300 * Initiates the listeners for skiplink interaction
1304 M.util.init_skiplink = function(Y) {
1305 Y.one(Y.config.doc.body).delegate('click', function(e) {
1307 e.stopPropagation();
1308 var node = Y.one(this.getAttribute('href'));
1309 node.setAttribute('tabindex', '-1');