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feat(router): add navigationSource and restoredState to NavigationStart event (#21728)

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Currently, NavigationStart there is no way to know if an navigation was triggered imperatively or via the location change. These two use cases should be handled differently for a variety of use cases (e.g., scroll position restoration). This PR adds a navigation source field and restored navigation id (passed to navigations triggered by a URL change).

PR Close #21728
This commit is contained in:
vsavkin
2018-01-24 12:19:59 -05:00
committed by Jason Aden
parent 5bd93b1f0f
commit c40ae7f7cf
10 changed files with 183 additions and 40 deletions
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11
tools/public_api_guard/router/router.d.ts vendored
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@ -208,6 +208,17 @@ export interface NavigationExtras {
/** @stable */
export declare class NavigationStart extends RouterEvent {
navigationTrigger?: 'imperative' | 'popstate' | 'hashchange';
restoredState?: {
navigationId: number;
} | null;
constructor(
id: number,
url: string,
navigationTrigger?: 'imperative' | 'popstate' | 'hashchange',
restoredState?: {
navigationId: number;
} | null);
toString(): string;
}