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let there be typescript
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Adam Bradley
238
ionic/components/segment/segment.ts
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238
ionic/components/segment/segment.ts
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import {Renderer, ElementRef, EventEmitter, onInit, Ancestor} from 'angular2/angular2';
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import {Control, NgControl,NgFormControl} from 'angular2/forms';
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import {ControlGroup, ControlDirective} from 'angular2/forms'
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import {dom} from 'ionic/util';
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import {IonicDirective, IonicComponent, IonicView} from '../../config/annotations'
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@IonicDirective({
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selector: 'ion-segment',
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//properties: ['value'],
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host: {
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'(change)': 'onChange($event.target.value)',
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'(input)': 'onChange($event.target.value)',
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'(blur)': 'onTouched()',
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//'[value]': 'value',
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/*
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'[class.ng-untouched]': 'cd.control?.untouched == true',
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'[class.ng-touched]': 'cd.control?.touched == true',
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'[class.ng-pristine]': 'cd.control?.pristine == true',
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'[class.ng-dirty]': 'cd.control?.dirty == true',
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'[class.ng-valid]': 'cd.control?.valid == true',
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'[class.ng-invalid]': 'cd.control?.valid == false'
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*/
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}
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})
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export class SegmentControlValueAccessor {
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constructor(cd: NgControl, renderer: Renderer, elementRef: ElementRef, segment: Segment) {
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this.onChange = (_) => {};
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this.onTouched = (_) => {};
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this.cd = cd;
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this.renderer = renderer;
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this.elementRef = elementRef;
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this.segment = segment;
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cd.valueAccessor = this;
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}
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writeValue(value) {
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// both this.value and setProperty are required at the moment
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// remove when a proper imperative API is provided
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this.value = !value ? '' : value;
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this.renderer.setElementProperty(this.elementRef.parentView.render, this.elementRef.boundElementIndex, 'value', this.value);
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this.segment.value = this.value;
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this.segment.selectFromValue(value);
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}
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registerOnChange(fn) { this.onChange = fn; }
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registerOnTouched(fn) { this.onTouched = fn; }
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}
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@IonicComponent(Segment)
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@IonicView({
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template: `<div class="ion-segment">
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<content></content>
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</div>
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`,
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directives: [SegmentButton]
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})
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export class Segment {
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static get config() {
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return {
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selector: 'ion-segment',
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appInjector: [ NgControl ],
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properties: [
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'value'
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],
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lifecycle: [onInit],
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host: {
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'(click)': 'buttonClicked($event)',
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'(change)': 'onChange($event)',
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//'[value]': 'value',
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/*
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'[class.ng-untouched]': 'cd.control?.untouched == true',
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'[class.ng-touched]': 'cd.control?.touched == true',
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'[class.ng-pristine]': 'cd.control?.pristine == true',
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'[class.ng-dirty]': 'cd.control?.dirty == true',
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'[class.ng-valid]': 'cd.control?.valid == true',
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'[class.ng-invalid]': 'cd.control?.valid == false'
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*/
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}
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}
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}
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constructor(
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cd: NgControl,
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elementRef: ElementRef,
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renderer: Renderer
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) {
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this.ele = elementRef.nativeElement
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this.elementRef = elementRef;
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this.renderer = renderer;
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this.change = new EventEmitter('change');
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this.input = new EventEmitter('input');
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this.cd = cd;
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this.buttons = [];
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}
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onInit() {
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Segment.applyConfig(this);
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}
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/**
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* Called by child SegmentButtons to bind themselves to
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* the Segment.
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*/
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register(segmentButton) {
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this.buttons.push(segmentButton);
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// If this button is registered and matches our value,
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// make sure to select it
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if(this.value == segmentButton.value) {
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this.selected(segmentButton);
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}
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}
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/**
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* Select the button with the given value.
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*/
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selectFromValue(value) {
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for(let button of this.buttons) {
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if(button.value === value) {
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button.isActive = true;
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}
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}
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}
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/**
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* Indicate a button should be selected.
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*/
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selected(segmentButton) {
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for(let button of this.buttons) {
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button.isActive = false;
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}
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segmentButton.isActive = true;
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//this.onChange();
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setTimeout(() => {
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this.value = segmentButton.value;
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this.cd.valueAccessor.writeValue(segmentButton.value);
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this.selectFromValue(segmentButton.value);
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this.cd.control.updateValue(segmentButton.value);
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// Trigger on change
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this.change.next();
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})
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//this.ngControl.control().updateValue(this.value);
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// TODO: Better way to do this?
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//this.controlDirective._control().updateValue(this.value);
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}
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}
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@IonicDirective({
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selector: 'ion-segment-button',
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properties: [
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'value'
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],
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host: {
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'(click)': 'buttonClicked($event)',
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'[class.active]': 'isActive'
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},
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lifecycle: [onInit]
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})
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export class SegmentButton {
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constructor(
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@Ancestor() segment: Segment,
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elementRef: ElementRef
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) {
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this.ele = elementRef.ele
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this.segment = segment;
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}
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onInit() {
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this.segment.register(this);
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}
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buttonClicked(event) {
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this.segment.selected(this, event);
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event.preventDefault();
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}
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}
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@IonicDirective({
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selector: 'ion-segment',
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host: {
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'(change)': 'onChange($event.target.value)',
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'(input)': 'onChange($event.target.value)',
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'(blur)': 'onTouched()',
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'[value]': 'value',
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'[class.ng-untouched]': 'cd.control?.untouched == true',
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'[class.ng-touched]': 'cd.control?.touched == true',
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'[class.ng-pristine]': 'cd.control?.pristine == true',
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'[class.ng-dirty]': 'cd.control?.dirty == true',
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'[class.ng-valid]': 'cd.control?.valid == true',
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'[class.ng-invalid]': 'cd.control?.valid == false'
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}
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})
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export class SegmentControlValueAccessor {
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constructor(cd: NgControl, renderer: Renderer, elementRef: ElementRef, segment: Segment) {
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this.onChange = (_) => {};
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this.onTouched = (_) => {};
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this.cd = cd;
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this.renderer = renderer;
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this.elementRef = elementRef;
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this.segment = segment;
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cd.valueAccessor = this;
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}
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writeValue(value) {
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// both this.value and setProperty are required at the moment
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// remove when a proper imperative API is provided
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this.value = !value ? '' : value;
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this.renderer.setElementProperty(this.elementRef.parentView.render, this.elementRef.boundElementIndex, 'value', this.value);
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this.segment.value = this.value;
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this.segment.selectFromValue(value);
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}
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registerOnChange(fn) { this.onChange = fn; }
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registerOnTouched(fn) { this.onTouched = fn; }
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}
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