mirror of
https://github.com/moodle/moodle.git
synced 2025-01-19 06:18:28 +01:00
ac5e6ca4d1
The displaying of advanced items has been refactored. The changes are: * The Advanced button is replaced by the Show Less/More link * The Show less/more link controls advanced elements only within the section it is located at * The Show less/more state of sections is preserved between form submissions * When javascript is off, all advanced elements will be displayed by default, no show/hide controls will exists on the page
322 lines
14 KiB
JavaScript
322 lines
14 KiB
JavaScript
/**
|
|
* This file contains JS functionality required by mforms and is included automatically
|
|
* when required.
|
|
*/
|
|
|
|
// Namespace for the form bits and bobs
|
|
M.form = M.form || {};
|
|
|
|
/**
|
|
* Stores a list of the dependencyManager for each form on the page.
|
|
*/
|
|
M.form.dependencyManagers = {};
|
|
|
|
/**
|
|
* Initialises a manager for a forms dependencies.
|
|
* This should happen once per form.
|
|
*/
|
|
M.form.initFormDependencies = function(Y, formid, dependencies) {
|
|
|
|
// If the dependencies isn't an array or object we don't want to
|
|
// know about it
|
|
if (!Y.Lang.isArray(dependencies) && !Y.Lang.isObject(dependencies)) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Fixes an issue with YUI's processing method of form.elements property
|
|
* in Internet Explorer.
|
|
* http://yuilibrary.com/projects/yui3/ticket/2528030
|
|
*/
|
|
Y.Node.ATTRS.elements = {
|
|
getter: function() {
|
|
return Y.all(new Y.Array(this._node.elements, 0, true));
|
|
}
|
|
};
|
|
|
|
// Define the dependency manager if it hasn't already been defined.
|
|
M.form.dependencyManager = M.form.dependencyManager || (function(){
|
|
var dependencyManager = function(config) {
|
|
dependencyManager.superclass.constructor.apply(this, arguments);
|
|
};
|
|
dependencyManager.prototype = {
|
|
_form : null,
|
|
_depElements : [],
|
|
_nameCollections : [],
|
|
initializer : function(config) {
|
|
var i = 0, nodeName;
|
|
this._form = Y.one('#'+formid);
|
|
for (i in dependencies) {
|
|
this._depElements[i] = this.elementsByName(i);
|
|
if (this._depElements[i].size() == 0) {
|
|
continue;
|
|
}
|
|
this._depElements[i].each(function(node){
|
|
nodeName = node.get('nodeName').toUpperCase();
|
|
if (nodeName == 'INPUT') {
|
|
if (node.getAttribute('type').match(/^(button|submit|radio|checkbox)$/)) {
|
|
node.on('click', this.checkDependencies, this);
|
|
} else {
|
|
node.on('blur', this.checkDependencies, this);
|
|
}
|
|
node.on('change', this.checkDependencies, this);
|
|
} else if (nodeName == 'SELECT') {
|
|
node.on('change', this.checkDependencies, this);
|
|
} else {
|
|
node.on('click', this.checkDependencies, this);
|
|
node.on('blur', this.checkDependencies, this);
|
|
node.on('change', this.checkDependencies, this);
|
|
}
|
|
}, this);
|
|
}
|
|
this._form.get('elements').each(function(input){
|
|
if (input.getAttribute('type')=='reset') {
|
|
input.on('click', function(){
|
|
this._form.reset();
|
|
this.checkDependencies();
|
|
}, this);
|
|
}
|
|
}, this);
|
|
|
|
return this.checkDependencies(null);
|
|
},
|
|
/**
|
|
* Gets all elements in the form by their name and returns
|
|
* a YUI NodeList
|
|
* @return Y.NodeList
|
|
*/
|
|
elementsByName : function(name) {
|
|
if (!this._nameCollections[name]) {
|
|
var elements = [];
|
|
this._form.get('elements').each(function(){
|
|
if (this.getAttribute('name') == name) {
|
|
elements.push(this);
|
|
}
|
|
});
|
|
this._nameCollections[name] = new Y.NodeList(elements);
|
|
}
|
|
return this._nameCollections[name];
|
|
},
|
|
/**
|
|
* Checks the dependencies the form has an makes any changes to the
|
|
* form that are required.
|
|
*
|
|
* Changes are made by functions title _dependency_{dependencytype}
|
|
* and more can easily be introduced by defining further functions.
|
|
*/
|
|
checkDependencies : function(e) {
|
|
var tolock = [],
|
|
tohide = [],
|
|
dependon, condition, value,
|
|
lock, hide, checkfunction, result;
|
|
for (dependon in dependencies) {
|
|
if (this._depElements[dependon].size() == 0) {
|
|
continue;
|
|
}
|
|
for (condition in dependencies[dependon]) {
|
|
for (value in dependencies[dependon][condition]) {
|
|
lock = false;
|
|
hide = false;
|
|
checkfunction = '_dependency_'+condition;
|
|
if (Y.Lang.isFunction(this[checkfunction])) {
|
|
result = this[checkfunction].apply(this, [this._depElements[dependon], value, e]);
|
|
} else {
|
|
result = this._dependency_default(this._depElements[dependon], value, e);
|
|
}
|
|
lock = result.lock || false;
|
|
hide = result.hide || false;
|
|
for (var ei in dependencies[dependon][condition][value]) {
|
|
var eltolock = dependencies[dependon][condition][value][ei];
|
|
if (hide) {
|
|
tohide[eltolock] = true;
|
|
}
|
|
if (tolock[eltolock] != null) {
|
|
tolock[eltolock] = lock || tolock[eltolock];
|
|
} else {
|
|
tolock[eltolock] = lock;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (var el in tolock) {
|
|
this._disableElement(el, tolock[el]);
|
|
if (tohide.propertyIsEnumerable(el)) {
|
|
this._hideElement(el, tohide[el]);
|
|
}
|
|
}
|
|
return true;
|
|
},
|
|
/**
|
|
* Disabled all form elements with the given name
|
|
*/
|
|
_disableElement : function(name, disabled) {
|
|
var els = this.elementsByName(name);
|
|
var form = this;
|
|
els.each(function(){
|
|
if (disabled) {
|
|
this.setAttribute('disabled', 'disabled');
|
|
} else {
|
|
this.removeAttribute('disabled');
|
|
}
|
|
|
|
// Extra code to disable filepicker or filemanager form elements
|
|
var fitem = this.ancestor('.fitem');
|
|
if (fitem && (fitem.hasClass('fitem_ffilemanager') || fitem.hasClass('fitem_ffilepicker'))) {
|
|
if (disabled){
|
|
fitem.addClass('disabled');
|
|
} else {
|
|
fitem.removeClass('disabled');
|
|
}
|
|
}
|
|
})
|
|
},
|
|
/**
|
|
* Hides all elements with the given name.
|
|
*/
|
|
_hideElement : function(name, hidden) {
|
|
var els = this.elementsByName(name);
|
|
els.each(function(){
|
|
var e = els.ancestor('.fitem');
|
|
if (e) {
|
|
e.setStyles({
|
|
display : (hidden)?'none':''
|
|
})
|
|
}
|
|
});
|
|
},
|
|
_dependency_notchecked : function(elements, value) {
|
|
var lock = false;
|
|
elements.each(function(){
|
|
if (this.getAttribute('type').toLowerCase()=='hidden' && !this.siblings('input[type=checkbox][name="' + this.get('name') + '"]').isEmpty()) {
|
|
// This is the hidden input that is part of an advcheckbox.
|
|
return;
|
|
}
|
|
if (this.getAttribute('type').toLowerCase()=='radio' && this.get('value') != value) {
|
|
return;
|
|
}
|
|
lock = lock || !Y.Node.getDOMNode(this).checked;
|
|
});
|
|
return {
|
|
lock : lock,
|
|
hide : false
|
|
}
|
|
},
|
|
_dependency_checked : function(elements, value) {
|
|
var lock = false;
|
|
elements.each(function(){
|
|
if (this.getAttribute('type').toLowerCase()=='hidden' && !this.siblings('input[type=checkbox][name="' + this.get('name') + '"]').isEmpty()) {
|
|
// This is the hidden input that is part of an advcheckbox.
|
|
return;
|
|
}
|
|
if (this.getAttribute('type').toLowerCase()=='radio' && this.get('value') != value) {
|
|
return;
|
|
}
|
|
lock = lock || Y.Node.getDOMNode(this).checked;
|
|
});
|
|
return {
|
|
lock : lock,
|
|
hide : false
|
|
}
|
|
},
|
|
_dependency_noitemselected : function(elements, value) {
|
|
var lock = false;
|
|
elements.each(function(){
|
|
lock = lock || this.get('selectedIndex') == -1;
|
|
});
|
|
return {
|
|
lock : lock,
|
|
hide : false
|
|
}
|
|
},
|
|
_dependency_eq : function(elements, value) {
|
|
var lock = false;
|
|
var hidden_val = false;
|
|
elements.each(function(){
|
|
if (this.getAttribute('type').toLowerCase()=='radio' && !Y.Node.getDOMNode(this).checked) {
|
|
return;
|
|
} else if (this.getAttribute('type').toLowerCase() == 'hidden' && !this.siblings('input[type=checkbox][name="' + this.get('name') + '"]').isEmpty()) {
|
|
// This is the hidden input that is part of an advcheckbox.
|
|
hidden_val = (this.get('value') == value);
|
|
return;
|
|
} else if (this.getAttribute('type').toLowerCase() == 'checkbox' && !Y.Node.getDOMNode(this).checked) {
|
|
lock = lock || hidden_val;
|
|
return;
|
|
}
|
|
//check for filepicker status
|
|
if (this.getAttribute('class').toLowerCase() == 'filepickerhidden') {
|
|
var elementname = this.getAttribute('name');
|
|
if (elementname && M.form_filepicker.instances[elementname].fileadded) {
|
|
lock = false;
|
|
} else {
|
|
lock = true;
|
|
}
|
|
} else {
|
|
lock = lock || this.get('value') == value;
|
|
}
|
|
});
|
|
return {
|
|
lock : lock,
|
|
hide : false
|
|
}
|
|
},
|
|
_dependency_hide : function(elements, value) {
|
|
return {
|
|
lock : false,
|
|
hide : true
|
|
}
|
|
},
|
|
_dependency_default : function(elements, value, ev) {
|
|
var lock = false;
|
|
var hidden_val = false;
|
|
elements.each(function(){
|
|
if (this.getAttribute('type').toLowerCase()=='radio' && !Y.Node.getDOMNode(this).checked) {
|
|
return;
|
|
} else if (this.getAttribute('type').toLowerCase() == 'hidden' && !this.siblings('input[type=checkbox][name="' + this.get('name') + '"]').isEmpty()) {
|
|
// This is the hidden input that is part of an advcheckbox.
|
|
hidden_val = (this.get('value') != value);
|
|
return;
|
|
} else if (this.getAttribute('type').toLowerCase() == 'checkbox' && !Y.Node.getDOMNode(this).checked) {
|
|
lock = lock || hidden_val;
|
|
return;
|
|
}
|
|
//check for filepicker status
|
|
if (this.getAttribute('class').toLowerCase() == 'filepickerhidden') {
|
|
var elementname = this.getAttribute('name');
|
|
if (elementname && M.form_filepicker.instances[elementname].fileadded) {
|
|
lock = true;
|
|
} else {
|
|
lock = false;
|
|
}
|
|
} else {
|
|
lock = lock || this.get('value') != value;
|
|
}
|
|
});
|
|
return {
|
|
lock : lock,
|
|
hide : false
|
|
}
|
|
}
|
|
};
|
|
Y.extend(dependencyManager, Y.Base, dependencyManager.prototype, {
|
|
NAME : 'mform-dependency-manager'
|
|
});
|
|
|
|
return dependencyManager;
|
|
})();
|
|
|
|
M.form.dependencyManagers[formid] = new M.form.dependencyManager();
|
|
return M.form.dependencyManagers[formid];
|
|
};
|
|
|
|
/**
|
|
* Update the state of a form. You need to call this after, for example, changing
|
|
* the state of some of the form input elements in your own code, in order that
|
|
* things like the disableIf state of elements can be updated.
|
|
*/
|
|
M.form.updateFormState = function(formid) {
|
|
if (formid in M.form.dependencyManagers) {
|
|
M.form.dependencyManagers[formid].checkDependencies(null);
|
|
}
|
|
};
|