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/*!
* Angular Material Design
* https://github.com/angular/material
* @license MIT
* v1.1.3
*/
(function( window, angular, undefined ){
"use strict";
/**
* @ngdoc module
* @name material.components.switch
*/
MdSwitch['$inject'] = ["mdCheckboxDirective", "$mdUtil", "$mdConstant", "$parse", "$$rAF", "$mdGesture", "$timeout"];
angular.module('material.components.switch', [
'material.core',
'material.components.checkbox'
])
.directive('mdSwitch', MdSwitch);
/**
* @ngdoc directive
* @module material.components.switch
* @name mdSwitch
* @restrict E
*
* The switch directive is used very much like the normal [angular checkbox](https://docs.angularjs.org/api/ng/input/input%5Bcheckbox%5D).
*
* As per the [material design spec](http://www.google.com/design/spec/style/color.html#color-ui-color-application)
* the switch is in the accent color by default. The primary color palette may be used with
* the `md-primary` class.
*
* @param {string} ng-model Assignable angular expression to data-bind to.
* @param {string=} name Property name of the form under which the control is published.
* @param {expression=} ng-true-value The value to which the expression should be set when selected.
* @param {expression=} ng-false-value The value to which the expression should be set when not selected.
* @param {string=} ng-change Angular expression to be executed when input changes due to user interaction with the input element.
* @param {expression=} ng-disabled En/Disable based on the expression.
* @param {boolean=} md-no-ink Use of attribute indicates use of ripple ink effects.
* @param {string=} aria-label Publish the button label used by screen-readers for accessibility. Defaults to the switch's text.
* @param {boolean=} md-invert When set to true, the switch will be inverted.
*
* @usage
* <hljs lang="html">
* <md-switch ng-model="isActive" aria-label="Finished?">
* Finished ?
* </md-switch>
*
* <md-switch md-no-ink ng-model="hasInk" aria-label="No Ink Effects">
* No Ink Effects
* </md-switch>
*
* <md-switch ng-disabled="true" ng-model="isDisabled" aria-label="Disabled">
* Disabled
* </md-switch>
*
* </hljs>
*/
function MdSwitch(mdCheckboxDirective, $mdUtil, $mdConstant, $parse, $$rAF, $mdGesture, $timeout) {
var checkboxDirective = mdCheckboxDirective[0];
return {
restrict: 'E',
priority: $mdConstant.BEFORE_NG_ARIA,
transclude: true,
template:
'<div class="md-container">' +
'<div class="md-bar"></div>' +
'<div class="md-thumb-container">' +
'<div class="md-thumb" md-ink-ripple md-ink-ripple-checkbox></div>' +
'</div>'+
'</div>' +
'<div ng-transclude class="md-label"></div>',
require: ['^?mdInputContainer', '?ngModel', '?^form'],
compile: mdSwitchCompile
};
function mdSwitchCompile(element, attr) {
var checkboxLink = checkboxDirective.compile(element, attr).post;
// No transition on initial load.
element.addClass('md-dragging');
return function (scope, element, attr, ctrls) {
var containerCtrl = ctrls[0];
var ngModel = ctrls[1] || $mdUtil.fakeNgModel();
var formCtrl = ctrls[2];
var disabledGetter = null;
if (attr.disabled != null) {
disabledGetter = function() { return true; };
} else if (attr.ngDisabled) {
disabledGetter = $parse(attr.ngDisabled);
}
var thumbContainer = angular.element(element[0].querySelector('.md-thumb-container'));
var switchContainer = angular.element(element[0].querySelector('.md-container'));
var labelContainer = angular.element(element[0].querySelector('.md-label'));
// no transition on initial load
$$rAF(function() {
element.removeClass('md-dragging');
});
checkboxLink(scope, element, attr, ctrls);
if (disabledGetter) {
scope.$watch(disabledGetter, function(isDisabled) {
element.attr('tabindex', isDisabled ? -1 : 0);
});
}
attr.$observe('mdInvert', function(newValue) {
var isInverted = $mdUtil.parseAttributeBoolean(newValue);
isInverted ? element.prepend(labelContainer) : element.prepend(switchContainer);
// Toggle a CSS class to update the margin.
element.toggleClass('md-inverted', isInverted);
});
// These events are triggered by setup drag
$mdGesture.register(switchContainer, 'drag');
switchContainer
.on('$md.dragstart', onDragStart)
.on('$md.drag', onDrag)
.on('$md.dragend', onDragEnd);
var drag;
function onDragStart(ev) {
// Don't go if the switch is disabled.
if (disabledGetter && disabledGetter(scope)) return;
ev.stopPropagation();
element.addClass('md-dragging');
drag = {width: thumbContainer.prop('offsetWidth')};
}
function onDrag(ev) {
if (!drag) return;
ev.stopPropagation();
ev.srcEvent && ev.srcEvent.preventDefault();
var percent = ev.pointer.distanceX / drag.width;
//if checked, start from right. else, start from left
var translate = ngModel.$viewValue ? 1 + percent : percent;
// Make sure the switch stays inside its bounds, 0-1%
translate = Math.max(0, Math.min(1, translate));
thumbContainer.css($mdConstant.CSS.TRANSFORM, 'translate3d(' + (100*translate) + '%,0,0)');
drag.translate = translate;
}
function onDragEnd(ev) {
if (!drag) return;
ev.stopPropagation();
element.removeClass('md-dragging');
thumbContainer.css($mdConstant.CSS.TRANSFORM, '');
// We changed if there is no distance (this is a click a click),
// or if the drag distance is >50% of the total.
var isChanged = ngModel.$viewValue ? drag.translate < 0.5 : drag.translate > 0.5;
if (isChanged) {
applyModelValue(!ngModel.$viewValue);
}
drag = null;
// Wait for incoming mouse click
scope.skipToggle = true;
$timeout(function() {
scope.skipToggle = false;
}, 1);
}
function applyModelValue(newValue) {
scope.$apply(function() {
ngModel.$setViewValue(newValue);
ngModel.$render();
});
}
};
}
}
})(window, window.angular);
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