Files
2015-06-27 14:42:09 -05:00

120 lines
3.1 KiB
JavaScript

import {Parent} from 'angular2/src/core/annotations_impl/visibility';
import {Directive, Component, onInit} from 'angular2/src/core/annotations_impl/annotations';
import {Optional} from 'angular2/src/di/annotations_impl'
import {View} from 'angular2/src/core/annotations_impl/view';
import {ElementRef} from 'angular2/src/core/compiler/element_ref';
import {Compiler} from 'angular2/angular2';
import {DynamicComponentLoader} from 'angular2/src/core/compiler/dynamic_component_loader';
import {Injector} from 'angular2/di';
import {ViewController} from '../view/view-controller';
import {ViewItem} from '../view/view-item';
import {Tabs} from './tabs';
import {Content} from '../content/content';
@Component({
selector: 'ion-tab',
properties: [
'root',
'tabTitle',
'tabIcon'
],
host: {
'[attr.id]': 'panelId',
'[attr.aria-labelledby]': 'labeledBy',
'[attr.aria-hidden]': 'isNotSelected',
'[class.tab-selected]': 'isSelected',
'role': 'tabpanel'
}
})
@View({
template: '<template pane-anchor></template><content></content>',
directives: [TabPaneAnchor]
})
export class Tab extends ViewController {
constructor(
@Parent() tabs: Tabs,
elementRef: ElementRef,
injector: Injector
) {
// A Tab is both a container of many views, and is a view itself.
// A Tab is one ViewItem within it's parent Tabs (which extends ViewController)
// A Tab is a ViewController for its child ViewItems
super(tabs, injector);
this.tabs = tabs;
this.childNavbar(true);
let item = this.item = new ViewItem(tabs.parent);
item.setInstance(this);
item.viewElement(elementRef.nativeElement);
tabs.addTab(this);
this.navbarView = item.navbarView = () => {
let activeItem = this.getActive();
return activeItem && activeItem.navbarView();
};
item.enableBack = () => {
// override ViewItem's enableBack(), should use the
// active child nav item's enableBack() instead
let activeItem = this.getActive();
return (activeItem && activeItem.enableBack());
};
this.panelId = 'tab-panel-' + item.id;
this.labeledBy = 'tab-button-' + item.id;
}
onInit() {
if (this._initialResolve) {
this.tabs.select(this).then(() => {
this._initialResolve();
this._initialResolve = null;
});
}
}
load(callback) {
if (!this._loaded && this.root) {
let opts = {
animate: false,
navbar: false
};
this.push(this.root, null, opts).then(() => {
callback && callback();
});
this._loaded = true;
} else {
callback && callback();
}
}
queueInitial() {
// this Tab will be used as the initial one for the first load of Tabs
return new Promise(res => { this._initialResolve = res; });
}
get isSelected() {
return this.tabs.isActive(this.item);
}
get isNotSelected() {
return !this.tabs.isActive(this.item);
}
}
@Directive({
selector: 'template[pane-anchor]'
})
class TabPaneAnchor {
constructor(@Parent() tab: Tab, elementRef: ElementRef) {
tab.anchorElementRef(elementRef);
}
}