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* Copyright 2020 Adobe. All rights reserved.
* This file is licensed to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
/**
* Selector that identifies the node that contains the WCM mode state.
* @private
*/
const WCM_MODE_META_SELECTOR = 'meta[property="cq:wcmmode"]';
/**
* The editor is in one of the edition modes.
* @private
*/
const EDIT_MODE = 'edit';
/**
* The editor is in preview mode.
* @private
*/
const PREVIEW_MODE = 'preview';
/**
* Returns if we are in the browser context or not by checking for the
* existence of the window object.
* @private
*/
function isBrowser() {
try {
return typeof window !== 'undefined';
} catch (e) {
return false;
}
}
/**
* Returns the current WCM mode
*
* <p>Note that the value isn't, as of the date of this writing, updated by the editor</p>
* @private
*/
function getWCMMode() {
Eif (isBrowser()) {
const wcmModeMeta: any = document.head.querySelector(WCM_MODE_META_SELECTOR);
return wcmModeMeta && wcmModeMeta.content;
}
}
/**
* Helper functions for interacting with the AEM environment.
*/
export const Utils = {
/**
* Is the app used in the context of the AEM Page editor.
*/
isInEditor(): boolean {
const wcmMode = getWCMMode();
return wcmMode && (EDIT_MODE === wcmMode || PREVIEW_MODE === wcmMode);
}
};
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