@stencil/router/dist/collection/components/router/router.js

import { h } from '@stencil/core';
import createHistory from '../../utils/createBrowserHistory';
import createHashHistory from '../../utils/createHashHistory';
import ActiveRouter from '../../global/active-router';
const getLocation = (location, root) => {
    // Remove the root URL if found at beginning of string
    const pathname = location.pathname.indexOf(root) == 0 ?
        '/' + location.pathname.slice(root.length) :
        location.pathname;
    return Object.assign({}, location, { pathname });
};
const HISTORIES = {
    'browser': createHistory,
    'hash': createHashHistory
};
/**
  * @name Router
  * @module ionic
  * @description
 */
export class Router {
    constructor() {
        this.root = '/';
        this.historyType = 'browser';
        // A suffix to append to the page title whenever
        // it's updated through RouteTitle
        this.titleSuffix = '';
        this.routeViewsUpdated = (options = {}) => {
            if (this.history && options.scrollToId && this.historyType === 'browser') {
                const elm = this.history.win.document.getElementById(options.scrollToId);
                if (elm) {
                    return elm.scrollIntoView();
                }
            }
            this.scrollTo(options.scrollTopOffset || this.scrollTopOffset);
        };
    }
    componentWillLoad() {
        this.history = HISTORIES[this.historyType](this.el.ownerDocument.defaultView);
        this.history.listen((location) => {
            location = getLocation(location, this.root);
            this.location = location;
        });
        this.location = getLocation(this.history.location, this.root);
    }
    scrollTo(scrollToLocation) {
        const history = this.history;
        if (scrollToLocation == null || this.isServer || !history) {
            return;
        }
        if (history.action === 'POP' && Array.isArray(history.location.scrollPosition)) {
            return this.queue.write(() => {
                if (history && history.location && Array.isArray(history.location.scrollPosition)) {
                    history.win.scrollTo(history.location.scrollPosition[0], history.location.scrollPosition[1]);
                }
            });
        }
        // okay, the frame has passed. Go ahead and render now
        return this.queue.write(() => {
            history.win.scrollTo(0, scrollToLocation);
        });
    }
    render() {
        if (!this.location || !this.history) {
            return;
        }
        const state = {
            historyType: this.historyType,
            location: this.location,
            titleSuffix: this.titleSuffix,
            root: this.root,
            history: this.history,
            routeViewsUpdated: this.routeViewsUpdated
        };
        return (h(ActiveRouter.Provider, { state: state },
            h("slot", null)));
    }
    static get is() { return "stencil-router"; }
    static get properties() { return {
        "root": {
            "type": "string",
            "mutable": false,
            "complexType": {
                "original": "string",
                "resolved": "string",
                "references": {}
            },
            "required": false,
            "optional": false,
            "docs": {
                "tags": [],
                "text": ""
            },
            "attribute": "root",
            "reflect": false,
            "defaultValue": "'/'"
        },
        "historyType": {
            "type": "string",
            "mutable": false,
            "complexType": {
                "original": "HistoryType",
                "resolved": "\"browser\" | \"hash\"",
                "references": {
                    "HistoryType": {
                        "location": "import",
                        "path": "../../global/interfaces"
                    }
                }
            },
            "required": false,
            "optional": false,
            "docs": {
                "tags": [],
                "text": ""
            },
            "attribute": "history-type",
            "reflect": false,
            "defaultValue": "'browser'"
        },
        "titleSuffix": {
            "type": "string",
            "mutable": false,
            "complexType": {
                "original": "string",
                "resolved": "string",
                "references": {}
            },
            "required": false,
            "optional": false,
            "docs": {
                "tags": [],
                "text": ""
            },
            "attribute": "title-suffix",
            "reflect": false,
            "defaultValue": "''"
        },
        "scrollTopOffset": {
            "type": "number",
            "mutable": false,
            "complexType": {
                "original": "number",
                "resolved": "number | undefined",
                "references": {}
            },
            "required": false,
            "optional": true,
            "docs": {
                "tags": [],
                "text": ""
            },
            "attribute": "scroll-top-offset",
            "reflect": false
        }
    }; }
    static get contextProps() { return [{
            "name": "isServer",
            "context": "isServer"
        }, {
            "name": "queue",
            "context": "queue"
        }]; }
    static get states() { return {
        "location": {},
        "history": {}
    }; }
    static get elementRef() { return "el"; }
}