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platform-providers.ts
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platform-providers.ts
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import { InjectionToken, Injectable } from "@angular/core";
import { topmost, Frame } from "tns-core-modules/ui/frame";
import { View } from "tns-core-modules/ui/core/view";
import { Page } from "tns-core-modules/ui/page";
import { device, Device } from "tns-core-modules/platform";
export const APP_ROOT_VIEW = new InjectionToken<View>("App Root View");
export const DEVICE = new InjectionToken<Device>("platform device");
export const PAGE_FACTORY = new InjectionToken<PageFactory>("page factory");
let _rootPageRef: WeakRef<Page>;
export function setRootPage(page: Page): void {
_rootPageRef = new WeakRef(page);
}
export function getRootPage(): Page {
return _rootPageRef && _rootPageRef.get();
}
// Use an exported function to make the AoT compiler happy.
export function getDefaultPage(): Page {
const rootPage = getRootPage();
if (rootPage instanceof Page) {
return rootPage;
}
const frame = topmost();
if (frame && frame.currentPage) {
return frame.currentPage;
}
return null;
}
export const defaultPageProvider = { provide: Page, useFactory: getDefaultPage };
// Use an exported function to make the AoT compiler happy.
export function getDefaultFrame(): Frame {
return topmost();
}
export const defaultFrameProvider = { provide: Frame, useFactory: getDefaultFrame };
// Use an exported function to make the AoT compiler happy.
export function getDefaultDevice(): Device {
return device;
}
export const defaultDeviceProvider = { provide: DEVICE, useFactory: getDefaultDevice };
export type PageFactory = (options: PageFactoryOptions) => Page;
export interface PageFactoryOptions {
isBootstrap?: boolean;
isLivesync?: boolean;
isModal?: boolean;
isNavigation?: boolean;
componentType?: any;
}
export const defaultPageFactory: PageFactory = function (_opts: PageFactoryOptions) {
return new Page();
};
export const defaultPageFactoryProvider = { provide: PAGE_FACTORY, useValue: defaultPageFactory };
@Injectable()
export class FrameService {
// TODO: Add any methods that are needed to handle frame/page navigation
getFrame(): Frame {
let topmostFrame = topmost();
return topmostFrame;
}
}