@kwiz/common/lib/esm/helpers/post-message.js

KWIZ common utilities and helpers for M365 platform

export function postMessageListener(type, handler) {
    const listener = (event) => {
        if (event.data && event.data.type === type) {
            handler(event.data);
        }
    };
    window.addEventListener("message", listener, false);
    return {
        /** in case you want to dispose of it */
        dispose: () => {
            window.removeEventListener("message", listener, false);
        }
    };
}
export function postMessageSender(
/** window.parent, window.top, or iframe ID */
target, data) {
    let targetWindow = target instanceof HTMLIFrameElement
        ? target.contentWindow
        : target;
    targetWindow.postMessage(data, '*');
}
/** Types were carefully constructed to allow caller to have auto complete options for type while being able to pass other values
 * postMessageSender(window, { type: "xxx", a: 1 });
 * postMessageSender(window, { type: "SOS_RESIZE_IFRAME", height: 1 });
 * postMessageSender(window, { type: "SOS_VISIBILITY_CHANGE", isVisible: false });
 * and
 * postMessageListener("SOS_RESIZE_IFRAME", data => data.height);
 * postMessageListener<{ type: "xxx", param: number }>("xxx", data => {
 *     console.log(data.param);
 * });
 */ 
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