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refactor(core): move APP_ID from render/dom/dom_tokens into application_tokens

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This commit is contained in:
Tobias Bosch
2015-10-02 09:53:57 -07:00
parent 6b5d345a2b
commit 13161ae5aa
12 changed files with 46 additions and 45 deletions
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29
modules/angular2/src/core/application_tokens.ts
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@ -1,5 +1,5 @@
import {OpaqueToken} from 'angular2/src/core/di';
import {CONST_EXPR} from 'angular2/src/core/facade/lang';
import {OpaqueToken, Binding} from 'angular2/src/core/di';
import {CONST_EXPR, Math, StringWrapper} from 'angular2/src/core/facade/lang';
/**
* @private
@ -24,3 +24,28 @@ export const APP_COMPONENT_REF_PROMISE = CONST_EXPR(new OpaqueToken('Promise<Com
* ```
*/
export const APP_COMPONENT: OpaqueToken = CONST_EXPR(new OpaqueToken('AppComponent'));
/**
* A DI Token representing a unique string id assigned to the application by Angular and used
* primarily for prefixing application attributes and CSS styles when
* {@link ViewEncapsulation#Emulated} is being used.
*
* If you need to avoid randomly generated value to be used as an application id, you can provide
* a custom value via a DI binding <!-- TODO: provider --> configuring the root {@link Injector}
* using this token.
*/
export const APP_ID: OpaqueToken = CONST_EXPR(new OpaqueToken('AppId'));
function _appIdRandomBindingFactory() {
return `${_randomChar()}${_randomChar()}${_randomChar()}`;
}
/**
* Bindings that will generate a random APP_ID_TOKEN.
*/
export const APP_ID_RANDOM_BINDING: Binding =
CONST_EXPR(new Binding(APP_ID, {toFactory: _appIdRandomBindingFactory, deps: []}));
function _randomChar(): string {
return StringWrapper.fromCharCode(97 + Math.floor(Math.random() * 25));
}