angular-cn/packages/platform-browser/src/platform-browser.ts
Kara Erickson de8ebbdfd0 feat(ivy): make Hammer support tree-shakable (#32203)
Currently, it's not possible to tree-shake away the
coordination layer between HammerJS and Angular's
EventManager. This means that you get the HammerJS
support code in your production bundle whether or
not you actually use the library.

This commit removes the Hammer providers from the
default platform_browser providers list and instead
provides them as part of a `HammerModule`. Apps on
Ivy just need to import the `HammerModule` at root
to turn on Hammer support. Otherwise all Hammer code
will tree-shake away. View Engine apps will require
no change.

BREAKING CHANGE

Previously, in Ivy applications, Hammer providers
were included by default. With this commit, apps
that want Hammer support must import `HammerModule`
in their root module.

PR Close #32203
2019-08-21 11:43:51 -07:00

23 lines
1.2 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
export {BrowserModule, platformBrowser} from './browser';
export {Meta, MetaDefinition} from './browser/meta';
export {Title} from './browser/title';
export {disableDebugTools, enableDebugTools} from './browser/tools/tools';
export {BrowserTransferStateModule, StateKey, TransferState, makeStateKey} from './browser/transfer_state';
export {By} from './dom/debug/by';
export {EVENT_MANAGER_PLUGINS, EventManager} from './dom/events/event_manager';
export {HAMMER_GESTURE_CONFIG, HAMMER_LOADER, HAMMER_PROVIDERS__POST_R3__ as ɵHAMMER_PROVIDERS__POST_R3__, HammerGestureConfig, HammerLoader, HammerModule} from './dom/events/hammer_gestures';
export {DomSanitizer, SafeHtml, SafeResourceUrl, SafeScript, SafeStyle, SafeUrl, SafeValue} from './security/dom_sanitization_service';
export * from './private_export';
export {VERSION} from './version';
// This must be exported so it doesn't get tree-shaken away prematurely
export {ELEMENT_PROBE_PROVIDERS__POST_R3__ as ɵELEMENT_PROBE_PROVIDERS__POST_R3__} from './dom/debug/ng_probe';