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@ -21,31 +21,25 @@ app.directive("indeterminate", [
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var setIndeterminateState = function (newValue) {
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elem.prop("indeterminate", newValue);
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};
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var setModelValueWithoutSideEffect = function (newVal) {
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setter(scope, newVal);
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ngModelCtrl.$modelValue = newVal;
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ngModelCtrl.$viewValue = newVal;
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ngModelCtrl.$render();
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};
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var setWithSideEffect = function (newVal) {
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ngModelCtrl.$setViewValue(newVal);
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ngModelCtrl.$render();
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};
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var passIfLeafChild = function (callback) {
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var passIfLeafChild = function (callback) { // ensure to execute callback when this input have one or more subinputs
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return function () {
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if (children.length > 0) {
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callback.apply(this, arguments);
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}
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};
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};
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var passIfNotIsLeafChild = function (callback) {
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var passIfNotIsLeafChild = function (callback) { // ensure to execute callback when this input havent subinput
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return function () {
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if (children.length === 0) {
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callback.apply(this, arguments);
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}
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};
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};
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var passThroughThisScope = function (callback) {
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var passThroughThisScope = function (callback) { // pass through the event from the scope where they sent
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return function (event) {
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if (event.targetScope !== event.currentScope) {
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return callback.apply(this, arguments);
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@ -60,14 +54,14 @@ app.directive("indeterminate", [
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}));
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scope.$on("ParentSelectedChange", passThroughThisScope(
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function (event, newVal) {
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setWithSideEffect(newVal);
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setWithSideEffect(newVal); // set value to parent's value; this will cause listener to emit childChange event; this won't be a infinite loop
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}));
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scope.$emit("i'm child input", get);
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setWithSideEffect(get());
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scope.$emit("childSelectedChange");
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} else {
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// init first time and only once
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scope.$emit("i'm child input", get);
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scope.$emit("childSelectedChange"); // force emitted, and force the parent change their state base on children at first time
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} else {
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// establish parent-child's relation
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// listen for the child emitted token
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scope.$on("i'm child input", passThroughThisScope(
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function (event, child) {
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children.push(child);
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@ -80,12 +74,13 @@ app.directive("indeterminate", [
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var anySeleted = children.some(function (child) {
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return child();
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});
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setIndeterminateState(allSelected !== anySeleted);
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setIndeterminateState(allSelected !== anySeleted); // if at least one is selected, but not all then set input property indeterminate to true
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setWithSideEffect(allSelected);
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};
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// is not leaf input, Only receive child change and parent change event
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ngModelCtrl.$viewChangeListeners.push(passIfLeafChild(function () {
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if (!elem.prop("indeterminate")) { // emit when prop indeterminate is set to false
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// emit when property indeterminate is set to false, prevent recursively emitting event from parent to children, children to parent
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if (!elem.prop("indeterminate")) {
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scope.$broadcast("ParentSelectedChange", get());
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}
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}));
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