@angular/cdk
Version:
Angular Material Component Development Kit
112 lines • 14.8 kB
JavaScript
/**
* @license
* Copyright Google LLC 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
*/
import { DOCUMENT } from '@angular/common';
import { Inject, Injectable, Optional, SkipSelf, } from '@angular/core';
import { Platform } from '@angular/cdk/platform';
import * as i0 from "@angular/core";
import * as i1 from "@angular/common";
import * as i2 from "@angular/cdk/platform";
/**
* Whether we're in a testing environment.
* TODO(crisbeto): remove this once we have an overlay testing module.
*/
var isTestEnvironment = typeof window !== 'undefined' && !!window &&
!!(window.__karma__ || window.jasmine);
/** Container inside which all overlays will render. */
var OverlayContainer = /** @class */ (function () {
function OverlayContainer(document,
/**
* @deprecated `platform` parameter to become required.
* @breaking-change 10.0.0
*/
_platform) {
this._platform = _platform;
this._document = document;
}
OverlayContainer.prototype.ngOnDestroy = function () {
var container = this._containerElement;
if (container && container.parentNode) {
container.parentNode.removeChild(container);
}
};
/**
* This method returns the overlay container element. It will lazily
* create the element the first time it is called to facilitate using
* the container in non-browser environments.
* @returns the container element
*/
OverlayContainer.prototype.getContainerElement = function () {
if (!this._containerElement) {
this._createContainer();
}
return this._containerElement;
};
/**
* Create the overlay container element, which is simply a div
* with the 'cdk-overlay-container' class on the document body.
*/
OverlayContainer.prototype._createContainer = function () {
// @breaking-change 10.0.0 Remove null check for `_platform`.
var isBrowser = this._platform ? this._platform.isBrowser : typeof window !== 'undefined';
var containerClass = 'cdk-overlay-container';
if (isBrowser || isTestEnvironment) {
var oppositePlatformContainers = this._document.querySelectorAll("." + containerClass + "[platform=\"server\"], " +
("." + containerClass + "[platform=\"test\"]"));
// Remove any old containers from the opposite platform.
// This can happen when transitioning from the server to the client.
for (var i = 0; i < oppositePlatformContainers.length; i++) {
oppositePlatformContainers[i].parentNode.removeChild(oppositePlatformContainers[i]);
}
}
var container = this._document.createElement('div');
container.classList.add(containerClass);
// A long time ago we kept adding new overlay containers whenever a new app was instantiated,
// but at some point we added logic which clears the duplicate ones in order to avoid leaks.
// The new logic was a little too aggressive since it was breaking some legitimate use cases.
// To mitigate the problem we made it so that only containers from a different platform are
// cleared, but the side-effect was that people started depending on the overly-aggressive
// logic to clean up their tests for them. Until we can introduce an overlay-specific testing
// module which does the cleanup, we try to detect that we're in a test environment and we
// always clear the container. See #17006.
// TODO(crisbeto): remove the test environment check once we have an overlay testing module.
if (isTestEnvironment) {
container.setAttribute('platform', 'test');
}
else if (!isBrowser) {
container.setAttribute('platform', 'server');
}
this._document.body.appendChild(container);
this._containerElement = container;
};
OverlayContainer.decorators = [
{ type: Injectable, args: [{ providedIn: 'root' },] }
];
/** @nocollapse */
OverlayContainer.ctorParameters = function () { return [
{ type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },
{ type: Platform }
]; };
OverlayContainer.ɵprov = i0.ɵɵdefineInjectable({ factory: function OverlayContainer_Factory() { return new OverlayContainer(i0.ɵɵinject(i1.DOCUMENT), i0.ɵɵinject(i2.Platform)); }, token: OverlayContainer, providedIn: "root" });
return OverlayContainer;
}());
export { OverlayContainer };
/** @docs-private @deprecated @breaking-change 8.0.0 */
export function OVERLAY_CONTAINER_PROVIDER_FACTORY(parentContainer, _document) {
return parentContainer || new OverlayContainer(_document);
}
/** @docs-private @deprecated @breaking-change 8.0.0 */
export var OVERLAY_CONTAINER_PROVIDER = {
// If there is already an OverlayContainer available, use that. Otherwise, provide a new one.
provide: OverlayContainer,
deps: [
[new Optional(), new SkipSelf(), OverlayContainer],
DOCUMENT // We need to use the InjectionToken somewhere to keep TS happy
],
useFactory: OVERLAY_CONTAINER_PROVIDER_FACTORY
};
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It will lazily\n   * create the element the first time  it is called to facilitate using\n   * the container in non-browser environments.\n   * @returns the container element\n   */\n  getContainerElement(): HTMLElement {\n    if (!this._containerElement) {\n      this._createContainer();\n    }\n\n    return this._containerElement;\n  }\n\n  /**\n   * Create the overlay container element, which is simply a div\n   * with the 'cdk-overlay-container' class on the document body.\n   */\n  protected _createContainer(): void {\n    // @breaking-change 10.0.0 Remove null check for `_platform`.\n    const isBrowser = this._platform ? this._platform.isBrowser : typeof window !== 'undefined';\n    const containerClass = 'cdk-overlay-container';\n\n    if (isBrowser || isTestEnvironment) {\n      const oppositePlatformContainers =\n          this._document.querySelectorAll(`.${containerClass}[platform=\"server\"], ` +\n                                          `.${containerClass}[platform=\"test\"]`);\n\n      // Remove any old containers from the opposite platform.\n      // This can happen when transitioning from the server to the client.\n      for (let i = 0; i < oppositePlatformContainers.length; i++) {\n        oppositePlatformContainers[i].parentNode!.removeChild(oppositePlatformContainers[i]);\n      }\n    }\n\n    const container = this._document.createElement('div');\n    container.classList.add(containerClass);\n\n    // A long time ago we kept adding new overlay containers whenever a new app was instantiated,\n    // but at some point we added logic which clears the duplicate ones in order to avoid leaks.\n    // The new logic was a little too aggressive since it was breaking some legitimate use cases.\n    // To mitigate the problem we made it so that only containers from a different platform are\n    // cleared, but the side-effect was that people started depending on the overly-aggressive\n    // logic to clean up their tests for them. Until we can introduce an overlay-specific testing\n    // module which does the cleanup, we try to detect that we're in a test environment and we\n    // always clear the container. See #17006.\n    // TODO(crisbeto): remove the test environment check once we have an overlay testing module.\n    if (isTestEnvironment) {\n      container.setAttribute('platform', 'test');\n    } else if (!isBrowser) {\n      container.setAttribute('platform', 'server');\n    }\n\n    this._document.body.appendChild(container);\n    this._containerElement = container;\n  }\n}\n\n\n/** @docs-private @deprecated @breaking-change 8.0.0 */\nexport function OVERLAY_CONTAINER_PROVIDER_FACTORY(parentContainer: OverlayContainer,\n  _document: any) {\n  return parentContainer || new OverlayContainer(_document);\n}\n\n/** @docs-private @deprecated @breaking-change 8.0.0 */\nexport const OVERLAY_CONTAINER_PROVIDER = {\n  // If there is already an OverlayContainer available, use that. Otherwise, provide a new one.\n  provide: OverlayContainer,\n  deps: [\n    [new Optional(), new SkipSelf(), OverlayContainer],\n    DOCUMENT as InjectionToken<any> // We need to use the InjectionToken somewhere to keep TS happy\n  ],\n  useFactory: OVERLAY_CONTAINER_PROVIDER_FACTORY\n};\n"]}