71 lines
1.7 KiB
JavaScript

import {Component} from 'angular2/src/core/annotations_impl/annotations';
import {View} from 'angular2/src/core/annotations_impl/view';
import {Attribute} from 'angular2/src/core/annotations_impl/di';
import {isPresent} from 'angular2/src/facade/lang';
import {KEY_SPACE} from 'angular2_material/src/core/constants'
import {KeyboardEvent} from 'angular2/src/facade/browser';
import {NumberWrapper} from 'angular2/src/facade/lang';
// TODO(jelbourn): without gesture support, this is identical to MdCheckbox.
@Component({
selector: 'md-switch',
properties: {
'checked': 'checked',
'disabled': 'disabled'
},
hostListeners: {
'keydown': 'onKeydown($event)'
},
hostProperties: {
'checked': 'attr.aria-checked',
'disabled_': 'attr.aria-disabled',
'role': 'attr.role'
}
})
@View({
templateUrl: 'angular2_material/src/components/switcher/switch.html',
directives: []
})
export class MdSwitch {
/** Whether this switch is checked. */
checked: boolean;
/** Whether this switch is disabled. */
disabled_: boolean;
tabindex: number;
role: string;
constructor(@Attribute('tabindex') tabindex: string) {
this.role = 'checkbox';
this.checked = false;
this.tabindex = isPresent(tabindex) ? NumberWrapper.parseInt(tabindex, 10) : 0;
}
get disabled() {
return this.disabled_;
}
set disabled(value) {
this.disabled_ = isPresent(value) && value !== false;
}
onKeydown(event: KeyboardEvent) {
if (event.keyCode === KEY_SPACE) {
event.preventDefault();
this.toggle(event);
}
}
toggle(event) {
if (this.disabled) {
event.stopPropagation();
return;
}
this.checked = !this.checked;
}
}