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  • Copyright 2020 - 2022 The Matrix.org Foundation C.I.C.
    
    
    Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
    */
    
    function selectNode(node) {
        const selection = window.getSelection();
        selection.removeAllRanges();
        const range = document.createRange();
        range.selectNode(node);
        selection.addRange(range);
    }
    
    
    export async function copy(text, parent) {
        if ("clipboard" in navigator) {
            const type = "text/plain";
            const blob = new Blob([text], { type });
            const data = [new ClipboardItem({ [type]: blob })];
            return navigator.clipboard.write(data);
        } else {
            const span = document.createElement("span");
            span.innerText = text;
            parent.appendChild(span);
            selectNode(span);
            const result = document.execCommand("copy");
            parent.removeChild(span);
            return result;
        }
    
    export function copyButton(t, getCopyText, label, classNames) {
        return t.button({className: `${classNames} icon copy`, onClick: evt => {
            const button = evt.target;
    
            if (copy(getCopyText(), button)) {
    
                button.innerText = "Copied!";
                button.classList.remove("copy");
                button.classList.add("tick");
                setTimeout(() => {
                    button.classList.remove("tick");
                    button.classList.add("copy");
                    button.innerText = label;
                }, 2000);
            }
        }}, label);
    }