mirror of
https://github.com/ionic-team/ionic-framework.git
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118 lines
2.9 KiB
TypeScript
118 lines
2.9 KiB
TypeScript
import {Directive, ElementRef, Attribute, Renderer} from 'angular2/core';
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import {Config} from '../../config/config';
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/**
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* @name Icon
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* @description
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* Icons can be used on their own, or inside of a number of Ionic components. For a full list of available icons,
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* check out the [Ionicons resource docs](../../../../../resources/ionicons).
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*
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* @property {boolean} [is-active] - Whether or not the icon is active. Icons that are not active will use an outlined version of the icon.
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* If there is not an outlined version for the particular icon, it will use the default (full) version.
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* @property {string} [ios] - Explicitly set the icon to use on iOS.
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* @property {string} [md] - Explicitly set the icon to use on Android.
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* @see {@link /docs/v2/components#icons Icon Component Docs}
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*
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*/
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@Directive({
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selector: 'icon',
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inputs: [
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'name',
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'ios',
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'md',
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'isActive'
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],
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host: {
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'role': 'img'
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}
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})
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export class Icon {
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constructor(
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private elementRef: ElementRef,
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config: Config,
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private renderer: Renderer
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) {
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this.config = config;
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this.mode = config.get('iconMode');
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}
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/**
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* @private
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*/
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ngOnInit() {
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let ele = this.elementRef.nativeElement;
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if (this.mode == 'ios' && this.ios) {
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this.name = this.ios;
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} else if (this.mode == 'md' && this.md) {
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this.name = this.md;
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} else if (!this.name) {
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// looping through native dom attributes, eww
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// https://github.com/angular/angular/issues/1818
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for (let i = 0, l = ele.attributes.length; i < l; i++) {
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if (ele.attributes[i].value === '' && /_|item-|is-active|large|small|class/.test(ele.attributes[i].name) !== true) {
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this.name = ele.attributes[i].name;
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break;
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}
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}
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}
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if (!this.name) return;
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if (!(/^ion-/.test(this.name))) {
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// not an exact icon being used
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// add mode specific prefix
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this.name = 'ion-' + this.mode + '-' + this.name;
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}
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this.update();
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}
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get isActive() {
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return (this._isActive === undefined || this._isActive === true || this._isActive === 'true');
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}
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/**
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* @private
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*/
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set isActive(val) {
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this._isActive = val;
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this.update();
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}
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/**
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* @private
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*/
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update() {
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if (this.name && this.mode == 'ios') {
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if (this.isActive) {
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if (/-outline/.test(this.name)) {
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this.name = this.name.replace('-outline', '');
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}
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} else if (!(/-outline/.test(this.name))) {
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this.name += '-outline';
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}
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}
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if (this._name !== this.name) {
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if (this._name) {
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this.renderer.setElementClass(this.elementRef, this._name, false);
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}
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this._name = this.name;
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this.renderer.setElementClass(this.elementRef, this.name, true);
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this.renderer.setElementAttribute(this.elementRef, 'aria-label',
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this.name.replace('ion-', '').replace('ios-', '').replace('md-', '').replace('-', ' '));
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}
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}
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}
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