angular-indeterminate
Version:
Tri-state indeterminate checkboxes in Angular
118 lines (101 loc) • 4.49 kB
JavaScript
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/************************************************************************/
/******/ ([
/* 0 */
/***/ function(module, exports) {
'use strict';
module.exports = angular.module('ngIndeterminate', []).directive('indeterminate', ["$parse", function ($parse) {
'ngInject';
return {
restrict: 'AE',
link: function link(scope, elem, attrs) {
var indeterminateClickBehavior = attrs.indeterminateClickBehavior || 'select';
var propKey = attrs.indeterminateKey || 'enabled';
var disabledKey = attrs.indeterminateDisabled || 'adminDisabled';
var trueValue = true;
var falseValue = false;
if (attrs.ngTrueValue && attrs.ngFalseValue) {
trueValue = $parse(attrs.ngTrueValue)(scope);
falseValue = $parse(attrs.ngFalseValue)(scope);
} else if (attrs.ngTrueValue || attrs.ngFalseValue) {
throw new Error('Must have both ngTrueValue and ngFalseValue set');
}
// Watch for changes to the list that comprises the indeterminate checkbox
scope.$watch(function () {
var values = scope.$eval(attrs.indeterminate);
return values.filter(function (v) {
return !v[disabledKey];
}).filter(function (v) {
return v[propKey] === trueValue;
}).length + values.length;
}, function () {
var values = scope.$eval(attrs.indeterminate).filter(function (v) {
return !v[disabledKey];
});
var enabled = values.filter(function (v) {
return v[propKey] === trueValue;
});
elem[0].indeterminate = 0 < enabled.length && enabled.length < values.length;
if (enabled.length === values.length) {
elem[0].checked = true;
} else {
elem[0].checked = false;
}
});
// Update the list when the indeterminate is clicked
elem.on('click', function (e) {
scope.$apply(function () {
var values = scope.$eval(attrs.indeterminate).filter(function (v) {
return !v[disabledKey];
});
var enabled = values.filter(function (v) {
return v[propKey] === trueValue;
});
var setValue = void 0;
if (enabled.length == 0) {
setValue = trueValue;
} else if (enabled.length < values.length && indeterminateClickBehavior !== 'clear') {
setValue = trueValue;
} else {
setValue = falseValue;
}
for (var i = 0; i < values.length; i++) {
if (!values[i][disabledKey]) values[i][propKey] = setValue;
}
});
});
}
};
}]).name;
/***/ }
/******/ ]);
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