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Wrap switch in IIFE

master
Surma 2015-08-05 12:03:19 +01:00
parent 257aa342f9
commit 05ada74ec8
1 changed files with 253 additions and 257 deletions
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510
src/switch/switch.js
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@ -15,269 +15,265 @@
* limitations under the License. * limitations under the License.
*/ */
/** (function() {
* Class constructor for Checkbox MDL component.
* Implements MDL component design pattern defined at:
* https://github.com/jasonmayes/mdl-component-design-pattern
* @param {HTMLElement} element The element that will be upgraded.
*/
function MaterialSwitch(element) {
'use strict'; 'use strict';
this.element_ = element; /**
* Class constructor for Checkbox MDL component.
* Implements MDL component design pattern defined at:
* https://github.com/jasonmayes/mdl-component-design-pattern
*
* @param {HTMLElement} element The element that will be upgraded.
*/
var MaterialSwitch = function MaterialSwitch(element) {
this.element_ = element;
// Initialize instance. // Initialize instance.
this.init(); this.init();
} };
window.MaterialSwitch = MaterialSwitch;
/** /**
* Store constants in one place so they can be updated easily. * Store constants in one place so they can be updated easily.
* @enum {string | number} *
* @private * @enum {String | Number}
*/ * @private
MaterialSwitch.prototype.Constant_ = { */
TINY_TIMEOUT: 0.001 MaterialSwitch.prototype.Constant_ = {
}; TINY_TIMEOUT: 0.001
};
/** /**
* Store strings for class names defined by this component that are used in * Store strings for class names defined by this component that are used in
* JavaScript. This allows us to simply change it in one place should we * JavaScript. This allows us to simply change it in one place should we
* decide to modify at a later date. * decide to modify at a later date.
* @enum {string} *
* @private * @enum {String}
*/ * @private
MaterialSwitch.prototype.CssClasses_ = { */
INPUT: 'mdl-switch__input', MaterialSwitch.prototype.CssClasses_ = {
TRACK: 'mdl-switch__track', INPUT: 'mdl-switch__input',
THUMB: 'mdl-switch__thumb', TRACK: 'mdl-switch__track',
FOCUS_HELPER: 'mdl-switch__focus-helper', THUMB: 'mdl-switch__thumb',
RIPPLE_EFFECT: 'mdl-js-ripple-effect', FOCUS_HELPER: 'mdl-switch__focus-helper',
RIPPLE_IGNORE_EVENTS: 'mdl-js-ripple-effect--ignore-events', RIPPLE_EFFECT: 'mdl-js-ripple-effect',
RIPPLE_CONTAINER: 'mdl-switch__ripple-container', RIPPLE_IGNORE_EVENTS: 'mdl-js-ripple-effect--ignore-events',
RIPPLE_CENTER: 'mdl-ripple--center', RIPPLE_CONTAINER: 'mdl-switch__ripple-container',
RIPPLE: 'mdl-ripple', RIPPLE_CENTER: 'mdl-ripple--center',
IS_FOCUSED: 'is-focused', RIPPLE: 'mdl-ripple',
IS_DISABLED: 'is-disabled', IS_FOCUSED: 'is-focused',
IS_CHECKED: 'is-checked' IS_DISABLED: 'is-disabled',
}; IS_CHECKED: 'is-checked'
};
/**
* Handle change of state.
* @param {Event} event The event that fired.
* @private
*/
MaterialSwitch.prototype.onChange_ = function(event) {
'use strict';
this.updateClasses_();
};
/**
* Handle focus of element.
* @param {Event} event The event that fired.
* @private
*/
MaterialSwitch.prototype.onFocus_ = function(event) {
'use strict';
this.element_.classList.add(this.CssClasses_.IS_FOCUSED);
};
/**
* Handle lost focus of element.
* @param {Event} event The event that fired.
* @private
*/
MaterialSwitch.prototype.onBlur_ = function(event) {
'use strict';
this.element_.classList.remove(this.CssClasses_.IS_FOCUSED);
};
/**
* Handle mouseup.
* @param {Event} event The event that fired.
* @private
*/
MaterialSwitch.prototype.onMouseUp_ = function(event) {
'use strict';
this.blur_();
};
/**
* Handle class updates.
* @private
*/
MaterialSwitch.prototype.updateClasses_ = function() {
'use strict';
this.checkDisabled();
this.checkToggleState();
};
/**
* Add blur.
* @private
*/
MaterialSwitch.prototype.blur_ = function(event) {
'use strict';
// TODO: figure out why there's a focus event being fired after our blur,
// so that we can avoid this hack.
window.setTimeout(function() {
this.inputElement_.blur();
}.bind(this), this.Constant_.TINY_TIMEOUT);
};
// Public methods.
/**
* Check the components disabled state.
* @public
*/
MaterialSwitch.prototype.checkDisabled = function() {
'use strict';
if (this.inputElement_.disabled) {
this.element_.classList.add(this.CssClasses_.IS_DISABLED);
} else {
this.element_.classList.remove(this.CssClasses_.IS_DISABLED);
}
};
/**
* Check the components toggled state.
* @public
*/
MaterialSwitch.prototype.checkToggleState = function() {
'use strict';
if (this.inputElement_.checked) {
this.element_.classList.add(this.CssClasses_.IS_CHECKED);
} else {
this.element_.classList.remove(this.CssClasses_.IS_CHECKED);
}
};
/**
* Disable switch.
* @public
*/
MaterialSwitch.prototype.disable = function() {
'use strict';
this.inputElement_.disabled = true;
this.updateClasses_();
};
/**
* Enable switch.
* @public
*/
MaterialSwitch.prototype.enable = function() {
'use strict';
this.inputElement_.disabled = false;
this.updateClasses_();
};
/**
* Activate switch.
* @public
*/
MaterialSwitch.prototype.on = function() {
'use strict';
this.inputElement_.checked = true;
this.updateClasses_();
};
/**
* Deactivate switch.
* @public
*/
MaterialSwitch.prototype.off = function() {
'use strict';
this.inputElement_.checked = false;
this.updateClasses_();
};
/**
* Initialize element.
*/
MaterialSwitch.prototype.init = function() {
'use strict';
if (this.element_) {
this.inputElement_ = this.element_.querySelector('.' +
this.CssClasses_.INPUT);
var track = document.createElement('div');
track.classList.add(this.CssClasses_.TRACK);
var thumb = document.createElement('div');
thumb.classList.add(this.CssClasses_.THUMB);
var focusHelper = document.createElement('span');
focusHelper.classList.add(this.CssClasses_.FOCUS_HELPER);
thumb.appendChild(focusHelper);
this.element_.appendChild(track);
this.element_.appendChild(thumb);
this.boundMouseUpHandler = this.onMouseUp_.bind(this);
if (this.element_.classList.contains(
this.CssClasses_.RIPPLE_EFFECT)) {
this.element_.classList.add(
this.CssClasses_.RIPPLE_IGNORE_EVENTS);
this.rippleContainerElement_ = document.createElement('span');
this.rippleContainerElement_.classList.add(
this.CssClasses_.RIPPLE_CONTAINER);
this.rippleContainerElement_.classList.add(this.CssClasses_.RIPPLE_EFFECT);
this.rippleContainerElement_.classList.add(this.CssClasses_.RIPPLE_CENTER);
this.rippleContainerElement_.addEventListener('mouseup', this.boundMouseUpHandler);
var ripple = document.createElement('span');
ripple.classList.add(this.CssClasses_.RIPPLE);
this.rippleContainerElement_.appendChild(ripple);
this.element_.appendChild(this.rippleContainerElement_);
}
this.boundChangeHandler = this.onChange_.bind(this);
this.boundFocusHandler = this.onFocus_.bind(this);
this.boundBlurHandler = this.onBlur_.bind(this);
this.inputElement_.addEventListener('change', this.boundChangeHandler);
this.inputElement_.addEventListener('focus', this.boundFocusHandler);
this.inputElement_.addEventListener('blur', this.boundBlurHandler);
this.element_.addEventListener('mouseup', this.boundMouseUpHandler);
/**
* Handle change of state.
*
* @param {Event} event The event that fired.
* @private
*/
MaterialSwitch.prototype.onChange_ = function(event) {
this.updateClasses_(); this.updateClasses_();
this.element_.classList.add('is-upgraded'); };
}
};
/* /**
* Downgrade the component. * Handle focus of element.
*/ *
MaterialSwitch.prototype.mdlDowngrade_ = function() { * @param {Event} event The event that fired.
'use strict'; * @private
if (this.rippleContainerElement_) { */
this.rippleContainerElement_.removeEventListener('mouseup', this.boundMouseUpHandler); MaterialSwitch.prototype.onFocus_ = function(event) {
} this.element_.classList.add(this.CssClasses_.IS_FOCUSED);
this.inputElement_.removeEventListener('change', this.boundChangeHandler); };
this.inputElement_.removeEventListener('focus', this.boundFocusHandler);
this.inputElement_.removeEventListener('blur', this.boundBlurHandler);
this.element_.removeEventListener('mouseup', this.boundMouseUpHandler);
};
// The component registers itself. It can assume componentHandler is available /**
// in the global scope. * Handle lost focus of element.
componentHandler.register({ *
constructor: MaterialSwitch, * @param {Event} event The event that fired.
classAsString: 'MaterialSwitch', * @private
cssClass: 'mdl-js-switch', */
widget: true MaterialSwitch.prototype.onBlur_ = function(event) {
}); this.element_.classList.remove(this.CssClasses_.IS_FOCUSED);
};
/**
* Handle mouseup.
*
* @param {Event} event The event that fired.
* @private
*/
MaterialSwitch.prototype.onMouseUp_ = function(event) {
this.blur_();
};
/**
* Handle class updates.
*
* @private
*/
MaterialSwitch.prototype.updateClasses_ = function() {
this.checkDisabled();
this.checkToggleState();
};
/**
* Add blur.
*
* @private
*/
MaterialSwitch.prototype.blur_ = function(event) {
// TODO: figure out why there's a focus event being fired after our blur,
// so that we can avoid this hack.
window.setTimeout(function() {
this.inputElement_.blur();
}.bind(this), this.Constant_.TINY_TIMEOUT);
};
// Public methods.
/**
* Check the components disabled state.
*
* @public
*/
MaterialSwitch.prototype.checkDisabled = function() {
if (this.inputElement_.disabled) {
this.element_.classList.add(this.CssClasses_.IS_DISABLED);
} else {
this.element_.classList.remove(this.CssClasses_.IS_DISABLED);
}
};
/**
* Check the components toggled state.
*
* @public
*/
MaterialSwitch.prototype.checkToggleState = function() {
if (this.inputElement_.checked) {
this.element_.classList.add(this.CssClasses_.IS_CHECKED);
} else {
this.element_.classList.remove(this.CssClasses_.IS_CHECKED);
}
};
/**
* Disable switch.
*
* @public
*/
MaterialSwitch.prototype.disable = function() {
this.inputElement_.disabled = true;
this.updateClasses_();
};
/**
* Enable switch.
*
* @public
*/
MaterialSwitch.prototype.enable = function() {
this.inputElement_.disabled = false;
this.updateClasses_();
};
/**
* Activate switch.
*
* @public
*/
MaterialSwitch.prototype.on = function() {
this.inputElement_.checked = true;
this.updateClasses_();
};
/**
* Deactivate switch.
*
* @public
*/
MaterialSwitch.prototype.off = function() {
this.inputElement_.checked = false;
this.updateClasses_();
};
/**
* Initialize element.
*/
MaterialSwitch.prototype.init = function() {
if (this.element_) {
this.inputElement_ = this.element_.querySelector('.' +
this.CssClasses_.INPUT);
var track = document.createElement('div');
track.classList.add(this.CssClasses_.TRACK);
var thumb = document.createElement('div');
thumb.classList.add(this.CssClasses_.THUMB);
var focusHelper = document.createElement('span');
focusHelper.classList.add(this.CssClasses_.FOCUS_HELPER);
thumb.appendChild(focusHelper);
this.element_.appendChild(track);
this.element_.appendChild(thumb);
this.boundMouseUpHandler = this.onMouseUp_.bind(this);
if (this.element_.classList.contains(
this.CssClasses_.RIPPLE_EFFECT)) {
this.element_.classList.add(
this.CssClasses_.RIPPLE_IGNORE_EVENTS);
this.rippleContainerElement_ = document.createElement('span');
this.rippleContainerElement_.classList.add(
this.CssClasses_.RIPPLE_CONTAINER);
this.rippleContainerElement_.classList.add(this.CssClasses_.RIPPLE_EFFECT);
this.rippleContainerElement_.classList.add(this.CssClasses_.RIPPLE_CENTER);
this.rippleContainerElement_.addEventListener('mouseup', this.boundMouseUpHandler);
var ripple = document.createElement('span');
ripple.classList.add(this.CssClasses_.RIPPLE);
this.rippleContainerElement_.appendChild(ripple);
this.element_.appendChild(this.rippleContainerElement_);
}
this.boundChangeHandler = this.onChange_.bind(this);
this.boundFocusHandler = this.onFocus_.bind(this);
this.boundBlurHandler = this.onBlur_.bind(this);
this.inputElement_.addEventListener('change', this.boundChangeHandler);
this.inputElement_.addEventListener('focus', this.boundFocusHandler);
this.inputElement_.addEventListener('blur', this.boundBlurHandler);
this.element_.addEventListener('mouseup', this.boundMouseUpHandler);
this.updateClasses_();
this.element_.classList.add('is-upgraded');
}
};
/**
* Downgrade the component.
*
* @private
*/
MaterialSwitch.prototype.mdlDowngrade_ = function() {
if (this.rippleContainerElement_) {
this.rippleContainerElement_.removeEventListener('mouseup', this.boundMouseUpHandler);
}
this.inputElement_.removeEventListener('change', this.boundChangeHandler);
this.inputElement_.removeEventListener('focus', this.boundFocusHandler);
this.inputElement_.removeEventListener('blur', this.boundBlurHandler);
this.element_.removeEventListener('mouseup', this.boundMouseUpHandler);
};
// The component registers itself. It can assume componentHandler is available
// in the global scope.
componentHandler.register({
constructor: MaterialSwitch,
classAsString: 'MaterialSwitch',
cssClass: 'mdl-js-switch',
widget: true
});
})();