ant-design-blazor/components/core/JsInterop/interop.ts

export function getDom(element) {
    if (!element) {
        element = document.body;
    } else if (typeof element === 'string') {
        element = document.querySelector(element);
    }
    return element;
}

export function getDomInfo(element) {
    var result = {};

    var dom = getDom(element);

    for (var key in dom) {
        var item = dom[key];
        if (!item) continue;
        if (typeof item === 'string' || (typeof item === 'number' && !isNaN(item))) result[key] = item;
    }

    return result;
}

export function getBoundingClientRect(element) {
    let dom = getDom(element);
    return dom.getBoundingClientRect();
}

export function addDomEventListener(element, eventName, invoker) {
    let callback = args => {
        invoker.invokeMethodAsync('Invoke', args);
    };

    if (element == 'window') {
        window.addEventListener(eventName, callback);
    } else {
        let dom = getDom(element);
        (document.querySelector(dom) as HTMLElement).addEventListener(eventName, callback);
    }
}

export function antMatchMedia(query) {
    return window.matchMedia(query).matches;
}

export function copy(text): Promise<any> {
    return new Promise<any>((resolve, reject) => {
        let copyTextArea = null;
        try {
            copyTextArea = this.document.createElement('textarea');
            copyTextArea.style.all = 'unset';
            copyTextArea.style.position = 'fixed';
            copyTextArea.style.top = '0';
            copyTextArea.style.clip = 'rect(0, 0, 0, 0)';
            copyTextArea.style.whiteSpace = 'pre';
            copyTextArea.style.webkitUserSelect = 'text';
            copyTextArea.style.MozUserSelect = 'text';
            copyTextArea.style.msUserSelect = 'text';
            copyTextArea.style.userSelect = 'text';
            this.document.body.appendChild(copyTextArea);
            copyTextArea.value = text;
            copyTextArea.select();

            const successful = this.document.execCommand('copy');
            if (!successful) {
                reject(text);
            }
            resolve(text);
        } finally {
            if (copyTextArea) {
                this.document.body.removeChild(copyTextArea);
            }
        }
    });
}