@blox/material
Version:
Material Components for Angular
208 lines • 30 kB
JavaScript
import { DOCUMENT } from '@angular/common';
import { Inject, Injectable } from '@angular/core';
import { MDCSnackbarFoundation, numbers } from '@material/snackbar';
import { util } from '@material/snackbar';
import { Subject } from 'rxjs';
import { takeUntil } from 'rxjs/operators';
import * as i0 from "@angular/core";
import * as i1 from "@angular/common";
const CLASS_LEADING = 'mdc-snackbar--leading';
const CLASS_STACKED = 'mdc-snackbar--stacked';
/**
* This class provides information about a posted snackbar message.
* It can also be used to subscribe to action clicks.
*/
export class MdcSnackbarRef {
}
// internal representation of the snackbar
class MdcSnackbarInfo extends MdcSnackbarRef {
constructor(message) {
super();
this.message = message;
/** @internal */
this._action = new Subject();
/** @internal */
this._opened = new Subject();
/** @internal */
this._closed = new Subject();
}
action() {
return this._action.asObservable();
}
afterOpened() {
return this._opened.asObservable();
}
afterClosed() {
return this._closed.asObservable();
}
}
/**
* A service for showing spec-aligned material design snackbar/toast messages.
*/
export class MdcSnackbarService {
constructor(doc) {
this.onDestroy$ = new Subject();
this.closed = new Subject();
this.root = null;
this.label = null;
this.actionButton = null;
this.actionLabel = null;
this.adapter = {
addClass: (name) => this.root.classList.add(name),
announce: () => util.announce(this.label, this.label),
notifyClosed: (reason) => this.closed.next(reason),
notifyClosing: () => { },
notifyOpened: () => { var _a; return (_a = this.current) === null || _a === void 0 ? void 0 : _a._opened.next(); },
notifyOpening: () => { },
removeClass: (name) => this.root.classList.remove(name)
};
this.handleActionClick = (evt) => {
try {
(this.queue.length > 0) && this.queue[0]._action.next();
}
finally {
this.foundation.handleActionButtonClick(evt);
}
};
this.handleKeyDown = (evt) => this.foundation.handleKeyDown(evt);
this.foundation = null;
this.queue = [];
this.document = doc;
}
init() {
if (!this.foundation) {
this.root = this.document.createElement('div');
this.root.classList.add('mdc-snackbar');
let surface = this.document.createElement('div');
surface.classList.add('mdc-snackbar__surface');
this.root.appendChild(surface);
this.label = this.document.createElement('div');
this.label.setAttribute('role', 'status');
this.label.setAttribute('aria-live', 'polite');
this.label.classList.add('mdc-snackbar__label');
surface.appendChild(this.label);
let actions = this.document.createElement('div');
actions.classList.add('mdc-snackbar__actions');
surface.appendChild(actions);
this.actionButton = this.document.createElement('button');
this.actionButton.classList.add('mdc-button');
this.actionButton.classList.add('mdc-snackbar__action');
this.actionButton.setAttribute('type', 'button');
actions.appendChild(this.actionButton);
let ripple = this.document.createElement('div');
ripple.classList.add('mdc-button__ripple');
this.actionButton.appendChild(ripple);
this.actionLabel = this.document.createElement('span');
this.actionLabel.classList.add('mdc-button__label');
this.actionButton.appendChild(this.actionLabel);
this.document.body.appendChild(this.root);
this.foundation = new MDCSnackbarFoundation(this.adapter);
this.actionButton.addEventListener('click', this.handleActionClick);
this.root.addEventListener('keydown', this.handleKeyDown);
this.closed.pipe(takeUntil(this.onDestroy$)).subscribe(reason => this.closeCurrent(reason));
}
}
/** @internal */
onDestroy() {
this.onDestroy$.next();
this.onDestroy$.complete();
if (this.foundation) {
this.actionButton.removeEventListener('click', this.handleActionClick);
this.root.removeEventListener('keydown', this.handleKeyDown);
this.foundation.destroy();
this.root.parentElement.removeChild(this.root);
this.root = null;
this.label = null;
this.actionButton = null;
this.actionLabel = null;
}
}
/**
* Show a snackbar/toast message. If a snackbar message is already showing, the new
* message will be queued to show after earlier message have been shown.
* The returned `MdcSnackbarRef` provides methods to subscribe to opened, closed, and
* action click events.
*
* @param message Queue a snackbar message to show.
*/
show(message) {
if (!message)
throw new Error('message parameter is not set in call to MdcSnackbarService.show');
this.init();
const ref = new MdcSnackbarInfo(message);
this.queue.push(ref);
if (this.queue.length === 1) {
// showing needs to be triggered after snackbarRef is returned to caller,
// so that caller can subscribe to `afterShow` before it is triggered:
Promise.resolve().then(() => {
this.showNext();
});
}
return ref;
}
showNext() {
if (this.queue.length === 0)
return;
const info = this.queue[0];
this.label.textContent = info.message.message || '';
this.actionLabel.textContent = info.message.actionText || '';
if (info.message.stacked)
this.root.classList.add(CLASS_STACKED);
else
this.root.classList.remove(CLASS_STACKED);
try {
this.foundation.setTimeoutMs(info.message.timeout || numbers.DEFAULT_AUTO_DISMISS_TIMEOUT_MS);
}
catch (error) {
console.warn(error.message);
this.foundation.setTimeoutMs(numbers.DEFAULT_AUTO_DISMISS_TIMEOUT_MS);
}
this.foundation.open();
}
closeCurrent(reason) {
const info = this.queue.shift();
info._closed.next(reason);
info._opened.complete();
info._action.complete();
info._closed.complete();
if (this.queue.length > 0)
this.showNext();
}
get current() {
return this.queue.length > 0 ? this.queue[0] : null;
}
/**
* Set this property to true to show snackbars start-aligned instead of center-aligned. Desktop and tablet only.
*/
get leading() {
return this.foundation ? this.root.classList.contains(CLASS_LEADING) : false;
}
set leading(value) {
this.init();
if (value)
this.root.classList.add(CLASS_LEADING);
else
this.root.classList.remove(CLASS_LEADING);
}
/**
* By default the snackbar closes when the user presses ESC, while it's focused. Set this to
* false to not close the snackbar when the user presses ESC.
*/
get closeOnEscape() {
return this.foundation ? this.foundation.getCloseOnEscape() : true;
}
set closeOnEscape(value) {
this.init();
this.foundation.setCloseOnEscape(!!value);
}
}
MdcSnackbarService.ɵprov = i0.ɵɵdefineInjectable({ factory: function MdcSnackbarService_Factory() { return new MdcSnackbarService(i0.ɵɵinject(i1.DOCUMENT)); }, token: MdcSnackbarService, providedIn: "root" });
MdcSnackbarService.decorators = [
{ type: Injectable, args: [{
providedIn: 'root'
},] }
];
MdcSnackbarService.ctorParameters = () => [
{ type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }
];
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{ DOCUMENT } from '@angular/common';\nimport { Inject, Injectable } from '@angular/core';\nimport { MDCSnackbarAdapter, MDCSnackbarFoundation, numbers } from '@material/snackbar';\nimport { util } from '@material/snackbar';\nimport { Observable, Subject } from 'rxjs';\nimport { takeUntil } from 'rxjs/operators';\nimport { MdcSnackbarMessage } from './mdc.snackbar.message';\n\nconst CLASS_LEADING = 'mdc-snackbar--leading';\nconst CLASS_STACKED = 'mdc-snackbar--stacked';\n\n\n/**\n * This class provides information about a posted snackbar message.\n * It can also be used to subscribe to action clicks.\n */\nexport abstract class MdcSnackbarRef {\n    /**\n     * Subscribe to this observable to be informed when a user clicks the action\n     * for the shown snackbar. Note that the observable will complete when the snackbar\n     * disappears from screen, so there is no need to unsubscribe.\n     */\n    abstract action(): Observable<void>;\n\n    /**\n     * Subscribe to this observable to be informed when the message is displayed.\n     * Note that the observable will complete when the snackbar disappears from screen,\n     * so there is no need to unsubscribe.\n     */\n    abstract afterOpened(): Observable<void>;\n\n    /**\n     * Subscribe to this observable to be informed when the message has disappeared.\n     * Note that the observable will complete immediately afterwards, so there is\n     * no need to unsubscribe.\n     * The observed value is the `reason` string that was provided for closing the snackbar.\n     */\n    abstract afterClosed(): Observable<string>;\n}\n\n// internal representation of the snackbar\nclass MdcSnackbarInfo extends MdcSnackbarRef {\n    /** @internal */\n    public _action: Subject<void> = new Subject();\n    /** @internal */\n    public _opened: Subject<void> = new Subject();\n    /** @internal */\n    public _closed: Subject<string> = new Subject();\n\n    constructor(public message: MdcSnackbarMessage) {\n        super();\n    }\n\n    action(): Observable<void> {\n        return this._action.asObservable();\n    }\n\n    afterOpened(): Observable<void> {\n        return this._opened.asObservable();\n    }\n\n    afterClosed(): Observable<string> {\n        return this._closed.asObservable();\n    }\n}\n\n/**\n * A service for showing spec-aligned material design snackbar/toast messages.\n */\n@Injectable({\n    providedIn: 'root'\n})\nexport class MdcSnackbarService {\n    private onDestroy$: Subject<any> = new Subject();\n    private closed: Subject<string> = new Subject<string>();\n    private root: HTMLElement | null = null;\n    private label: HTMLElement | null = null;\n    private actionButton: HTMLElement | null = null;\n    private actionLabel: HTMLElement | null = null;\n    private adapter: MDCSnackbarAdapter = {\n        addClass: (name) => this.root!.classList.add(name),\n        announce: () => util.announce(this.label!, this.label!),\n        notifyClosed: (reason) => this.closed.next(reason),\n        notifyClosing: () => {},\n        notifyOpened: () => this.current?._opened.next(),\n        notifyOpening: () => {},\n        removeClass: (name) => this.root!.classList.remove(name)\n    };\n    private handleActionClick = (evt: MouseEvent) => {\n        try {\n            (this.queue.length > 0) && this.queue[0]._action.next();\n        } finally {\n            this.foundation!.handleActionButtonClick(evt);\n        }\n    };\n    private handleKeyDown = (evt: KeyboardEvent) => this.foundation!.handleKeyDown(evt);\n    private foundation: MDCSnackbarFoundation | null = null;\n    private queue: MdcSnackbarInfo[] = [];\n    private document: Document;\n\n    constructor(@Inject(DOCUMENT) doc: any) {\n        this.document = doc as Document;\n    }\n\n    private init() {\n        if (!this.foundation) {\n            this.root = this.document.createElement('div');\n            this.root.classList.add('mdc-snackbar');\n            let surface = this.document.createElement('div');\n            surface.classList.add('mdc-snackbar__surface');\n            this.root.appendChild(surface);\n            this.label = this.document.createElement('div');\n            this.label.setAttribute('role', 'status');\n            this.label.setAttribute('aria-live', 'polite');\n            this.label.classList.add('mdc-snackbar__label');\n            surface.appendChild(this.label);\n            let actions = this.document.createElement('div');\n            actions.classList.add('mdc-snackbar__actions');\n            surface.appendChild(actions);\n            this.actionButton = this.document.createElement('button');\n            this.actionButton.classList.add('mdc-button');\n            this.actionButton.classList.add('mdc-snackbar__action');\n            this.actionButton.setAttribute('type', 'button');\n            actions.appendChild(this.actionButton);\n            let ripple = this.document.createElement('div');\n            ripple.classList.add('mdc-button__ripple');\n            this.actionButton.appendChild(ripple);\n            this.actionLabel = this.document.createElement('span');\n            this.actionLabel.classList.add('mdc-button__label');\n            this.actionButton.appendChild(this.actionLabel);\n            this.document.body.appendChild(this.root);\n            this.foundation = new MDCSnackbarFoundation(this.adapter);\n\n            this.actionButton.addEventListener('click', this.handleActionClick);\n            this.root.addEventListener('keydown', this.handleKeyDown);\n\n            this.closed.pipe(takeUntil(this.onDestroy$)).subscribe(reason => this.closeCurrent(reason));\n        }\n    }\n\n    /** @internal */\n    onDestroy() {\n        this.onDestroy$.next();\n        this.onDestroy$.complete();\n        if (this.foundation) {\n            this.actionButton!.removeEventListener('click', this.handleActionClick);\n            this.root!.removeEventListener('keydown', this.handleKeyDown);\n            this.foundation.destroy();\n            this.root!.parentElement!.removeChild(this.root!);\n            this.root = null;\n            this.label = null;\n            this.actionButton = null;\n            this.actionLabel = null;\n        }\n    }\n\n    /**\n     * Show a snackbar/toast message. If a snackbar message is already showing, the new\n     * message will be queued to show after earlier message have been shown.\n     * The returned `MdcSnackbarRef` provides methods to subscribe to opened, closed, and \n     * action click events.\n     * \n     * @param message Queue a snackbar message to show.\n     */\n    show(message: MdcSnackbarMessage): MdcSnackbarRef {\n        if (!message)\n            throw new Error('message parameter is not set in call to MdcSnackbarService.show');\n        this.init();\n        const ref = new MdcSnackbarInfo(message);\n        this.queue.push(ref);\n        if (this.queue.length === 1) {\n            // showing needs to be triggered after snackbarRef is returned to caller,\n            // so that caller can subscribe to `afterShow` before it is triggered:\n            Promise.resolve().then(() => {\n                this.showNext();\n            });\n        }\n        return ref;\n    }\n\n    private showNext() {\n        if (this.queue.length === 0)\n            return;\n        const info = this.queue[0];\n        this.label!.textContent = info.message.message || '';\n        this.actionLabel!.textContent = info.message.actionText || '';\n        if (info.message.stacked)\n            this.root!.classList.add(CLASS_STACKED);\n        else\n            this.root!.classList.remove(CLASS_STACKED);\n        try {\n            this.foundation!.setTimeoutMs(info.message.timeout || numbers.DEFAULT_AUTO_DISMISS_TIMEOUT_MS);\n        } catch (error) {\n            console.warn(error.message);\n            this.foundation!.setTimeoutMs(numbers.DEFAULT_AUTO_DISMISS_TIMEOUT_MS);\n        }\n        this.foundation!.open();\n    }\n\n    private closeCurrent(reason: string) {\n        const info = this.queue.shift();\n        info!._closed.next(reason);\n        info!._opened.complete();\n        info!._action.complete();\n        info!._closed.complete();\n        if (this.queue.length > 0)\n            this.showNext();\n    }\n\n    private get current() {\n        return this.queue.length > 0 ? this.queue[0] : null;\n    }\n\n    /**\n     * Set this property to true to show snackbars start-aligned instead of center-aligned. Desktop and tablet only.\n     */\n    get leading(): boolean {\n        return this.foundation ? this.root!.classList.contains(CLASS_LEADING) : false;\n    }\n\n    set leading(value: boolean) {\n        this.init();\n        if (value)\n            this.root!.classList.add(CLASS_LEADING);\n        else\n            this.root!.classList.remove(CLASS_LEADING);\n    }\n\n    /**\n     * By default the snackbar closes when the user presses ESC, while it's focused. Set this to\n     * false to not close the snackbar when the user presses ESC.\n     */\n    get closeOnEscape(): boolean {\n        return this.foundation ? this.foundation.getCloseOnEscape() : true;\n    }\n\n    set closeOnEscape(value: boolean) {\n        this.init();\n        this.foundation!.setCloseOnEscape(!!value);\n    }\n}\n"]}