Converted Radio to new JS Design Pattern
Converted the radio component to use the new JS design pattern as shown here: https://github.com/jasonmayes/wsk-component-design-patternmaster
Jason Mayes
parent
8a83de10af
commit
2dc721570e
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@ -36,7 +36,7 @@
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<span class="wsk-radio__label">Unavailable option</span>
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</label>
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</section>
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<script src="../third_party/wskComponentHandler.js"></script>
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<!-- build:js(app/styleguide/radio/) ../../scripts/main.min.js -->
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<script src="radio.js"></script>
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<script src="../third_party/rAF.js"></script>
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@ -1,93 +1,200 @@
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function Radio(btnElement, container) {
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/**
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* Class constructor for Radio WSK component.
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* Implements WSK component design pattern defined at:
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* https://github.com/jasonmayes/wsk-component-design-pattern
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* @param {HTMLElement} element The element that will be upgraded.
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*/
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function MaterialRadio(element) {
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'use strict';
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var outerCircle = document.createElement('span');
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outerCircle.classList.add('wsk-radio__outer-circle');
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this.element_ = element;
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var innerCircle = document.createElement('span');
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innerCircle.classList.add('wsk-radio__inner-circle');
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// Initialize instance.
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this.init();
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}
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container.appendChild(outerCircle);
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container.appendChild(innerCircle);
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/**
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* Store constants in one place so they can be updated easily.
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* @enum {string | number}
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* @private
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*/
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MaterialRadio.prototype.Constant_ = {
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STARTING_POSITION: 1
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};
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var rippleContainer;
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/**
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* Store strings for class names defined by this component that are used in
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* JavaScript. This allows us to simply change it in one place should we
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* decide to modify at a later date.
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* @enum {string}
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* @private
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*/
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MaterialRadio.prototype.CssClasses_ = {
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/**
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* Class names should use camelCase and be prefixed with the word "material"
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* to minimize conflict with 3rd party systems.
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*/
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if (container.classList.contains('wsk-js-ripple-effect')) {
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container.classList.add('wsk-js-ripple-effect--ignore-events');
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rippleContainer = document.createElement('span');
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rippleContainer.classList.add('wsk-radio__ripple-container');
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rippleContainer.classList.add('wsk-js-ripple-effect');
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rippleContainer.classList.add('wsk-ripple--center');
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// TODO: Upgrade classnames in HTML / CSS / JS to use material prefix to
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// reduce conflict and convert to camelCase for consistency.
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DEMO_JS_MOVABLE_AREA: 'demo-js-movable-area',
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var ripple = document.createElement('span');
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ripple.classList.add('wsk-ripple');
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DEMO_POSITION_PREFIX: 'demo-position-'
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};
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rippleContainer.appendChild(ripple);
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container.appendChild(rippleContainer);
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/**
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* Handle change of state.
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* @param {Event} event The event that fired.
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* @private
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*/
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MaterialRadio.prototype.onChange_ = function(event) {
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'use strict';
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this.updateClasses_(this.btnElement_, this.element_);
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// Since other radio buttons don't get change events, we need to look for
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// them to update their classes.
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var radios = document.querySelectorAll('.wsk-js-radio');
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for (var i = 0; i < radios.length; i++) {
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var button = radios[i].querySelector('.wsk-radio__button');
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// Different name == different group, so no point updating those.
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if (button.getAttribute('name') === this.btnElement_.getAttribute('name')) {
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this.updateClasses_(button, radios[i]);
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}
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}
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};
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/**
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* Handle focus.
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* @param {Event} event The event that fired.
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* @private
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*/
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MaterialRadio.prototype.onFocus_ = function(event) {
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'use strict';
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this.element_.classList.add('is-focused');
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};
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/**
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* Handle lost focus.
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* @param {Event} event The event that fired.
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* @private
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*/
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MaterialRadio.prototype.onBlur_ = function(event) {
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'use strict';
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this.element_.classList.remove('is-focused');
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};
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/**
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* Handle mouseup.
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* @param {Event} event The event that fired.
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* @private
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*/
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MaterialRadio.prototype.onMouseup_ = function(event) {
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'use strict';
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this.blur_();
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};
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/**
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* Update classes.
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* @param {HTMLElement} button The button whose classes we should update.
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* @param {HTMLElement} label The label whose classes we should update.
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* @private
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*/
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MaterialRadio.prototype.updateClasses_ = function(button, label) {
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'use strict';
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if (button.disabled) {
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label.classList.add('is-disabled');
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} else {
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label.classList.remove('is-disabled');
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}
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btnElement.addEventListener('change', function(e) {
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this.updateClasses(btnElement, container);
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if (button.checked) {
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label.classList.add('is-checked');
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} else {
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label.classList.remove('is-checked');
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}
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};
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// Since other radio buttons don't get change events, we need to look for
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// them to update their classes.
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var radios = document.querySelectorAll('.wsk-js-radio');
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for (var i = 0; i < radios.length; i++) {
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var button = radios[i].querySelector('.wsk-radio__button');
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// Different name == different group, so no point updating those.
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if (button.getAttribute('name') === btnElement.getAttribute('name')) {
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this.updateClasses(button, radios[i]);
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}
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/**
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* Add blur.
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* @private
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*/
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MaterialRadio.prototype.blur_ = function(event) {
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'use strict';
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// TODO: figure out why there's a focus event being fired after our blur,
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// so that we can avoid this hack.
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window.setTimeout(function() { this.btnElement_.blur(); }, 0.001);
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};
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/**
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* Initialize element.
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*/
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MaterialRadio.prototype.init = function() {
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'use strict';
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if (this.element_) {
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this.btnElement_ = this.element_.querySelector('.wsk-radio__button');
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var outerCircle = document.createElement('span');
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outerCircle.classList.add('wsk-radio__outer-circle');
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var innerCircle = document.createElement('span');
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innerCircle.classList.add('wsk-radio__inner-circle');
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this.element_.appendChild(outerCircle);
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this.element_.appendChild(innerCircle);
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var rippleContainer;
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if (this.element_.classList.contains('wsk-js-ripple-effect')) {
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this.element_.classList.add('wsk-js-ripple-effect--ignore-events');
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rippleContainer = document.createElement('span');
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rippleContainer.classList.add('wsk-radio__ripple-container');
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rippleContainer.classList.add('wsk-js-ripple-effect');
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rippleContainer.classList.add('wsk-ripple--center');
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var ripple = document.createElement('span');
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ripple.classList.add('wsk-ripple');
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rippleContainer.appendChild(ripple);
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this.element_.appendChild(rippleContainer);
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}
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}.bind(this));
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this.btnElement_.addEventListener('change', this.onChange_.bind(this));
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this.btnElement_.addEventListener('focus', this.onFocus_.bind(this));
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btnElement.addEventListener('focus', function(e) {
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container.classList.add('is-focused');
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}.bind(this));
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this.btnElement_.addEventListener('blur', this.onBlur_.bind(this));
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btnElement.addEventListener('blur', function(e) {
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container.classList.remove('is-focused');
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}.bind(this));
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this.element_.addEventListener('mouseup', this.onMouseup_.bind(this));
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container.addEventListener('mouseup', function(e) {
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this.blur();
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}.bind(this));
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rippleContainer.addEventListener('mouseup', this.onMouseup_.bind(this));
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rippleContainer.addEventListener('mouseup', function(e) {
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this.blur();
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}.bind(this));
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this.updateClasses_(this.btnElement_, this.element_);
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this.element_.classList.add('is-upgraded');
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}
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};
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this.updateClasses = function(button, label) {
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if (button.disabled) {
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label.classList.add('is-disabled');
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} else {
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label.classList.remove('is-disabled');
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}
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if (button.checked) {
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label.classList.add('is-checked');
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} else {
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label.classList.remove('is-checked');
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}
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};
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this.blur = function() {
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// TODO: figure out why there's a focus event being fired after our blur,
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// so that we can avoid this hack.
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window.setTimeout(function() { btnElement.blur(); }, 0.001);
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};
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this.updateClasses(btnElement, container);
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container.classList.add('is-upgraded');
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}
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window.addEventListener('load', function() {
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'use strict';
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var radios = document.querySelectorAll('.wsk-js-radio');
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for (var i = 0; i < radios.length; i++) {
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var button = radios[i].querySelector('.wsk-radio__button');
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new Radio(button, radios[i]);
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}
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});
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// On document ready, the component registers itself. It can assume
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// componentHandler is available in the global scope.
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componentHandler.register({
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constructor: MaterialRadio,
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classAsString: 'MaterialRadio',
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cssClass: 'wsk-js-radio'
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});
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});
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