ryanwjackson · February 9, 2021 15:01
diff --git a/copyable.html b/copyable.html
 <html>

 <head>
    <style>
        .copyable {
            display: inline-block;
            padding: 4px;
            border-radius: 4px;
            border: 1px solid #ccc;
        }
        
        .copyable:hover {
            border-color: #999;
            cursor: copy;
        }
        
        .copyable-copied {
            position: absolute;
        }
        
        .copy-icon {
            display: inline-block;
            padding-left: 8px;
            padding-right: 4px;
            margin-left: 4px;
            border-left: 1px solid #ccc;
        }
        
        .copy-icon svg {
            height: 16px;
            width: 16px;
        }
    </style>
 </head>

 <body>
    <div>
        <span class="copyable">
      Hello World!
    </span>
    </div>
    <div>
        <span class="copyable">
        foobar
      </span>
    </div>

    <script>
        function createCopyIcon() {
            var xmlns = "http://www.w3.org/2000/svg";

            var path = document.createElementNS(xmlns, "path");
            path.setAttribute("d", "M16.5 4H14V1.5C14 0.673 13.327 0 12.5 0H5C4.867 0 4.74 0.053 4.646 0.146L1.146 3.646C1.052 3.74 1 3.867 1 4V14.5C1 15.327 1.673 16 2.5 16H5V18.5C5 19.327 5.673 20 6.5 20H16.5C17.327 20 18 19.327 18 18.5V5.5C18 4.673 17.327 4 16.5 4ZM5 1.207V3.5C5 3.776 4.776 4 4.5 4H2.207L5 1.207ZM2.5 15C2.224 15 2 14.776 2 14.5V5H4.5C5.327 5 6 4.327 6 3.5V1H12.5C12.776 1 13 1.224 13 1.5V4H9C8.867 4 8.74 4.053 8.646 4.146L5.146 7.646C5.052 7.74 5 7.867 5 8V15H2.5ZM9 5.207V7.5C9 7.776 8.776 8 8.5 8H6.207L9 5.207ZM17 18.5C17 18.776 16.776 19 16.5 19H6.5C6.224 19 6 18.776 6 18.5V9H8.5C9.327 9 10 8.327 10 7.5V5H16.5C16.776 5 17 5.224 17 5.5V18.5Z");
            path.setAttribute("fill", "black");

            var svg = document.createElementNS(xmlns, "svg");
            /* svg.setAttribute("width", "20"); */
            /* svg.setAttribute("height", "20"); */
            svg.setAttribute("viewBox", "0 0 20 20");
            svg.setAttribute("fill", "none");
            svg.appendChild(path);

            var copySpan = document.createElement("span");
            copySpan.setAttribute("class", "copy-icon");
            copySpan.appendChild(svg);

            return copySpan;
        }

        function createCopyContentSpan(content) {
            var copyContentSpan = document.createElement("span");
            copyContentSpan.setAttribute("class", "copy-content");
            copyContentSpan.innerText = content;

            return copyContentSpan;
        }

        function createCopiedSpan(content) {
            var span = document.createElement("span");
            span.setAttribute("class", "copyable-copied");
            span.style.display = "none";
            span.innerText = "Copied!";

            return span;
        }

        var copyables = document.getElementsByClassName("copyable");

        Array.from(copyables).forEach(function(copyable) {
            var content = copyable.innerText;
            copyable.innerText = "";

            var copiedSpan = createCopiedSpan();
            copyable.append(copiedSpan);

            var contentSpan = createCopyContentSpan(content);
            copyable.append(contentSpan);


            var copyIcons = copyable.getElementsByClassName("copy-icon");

            if (copyIcons.length == 0) {
                var icon = createCopyIcon();
                copyable.appendChild(icon);
            } else {
                var icon = Array.from(copyIcons)[0]
            }

            copyable.onclick = function() {
                copyTextToClipboard(contentSpan, content, copiedSpan);
            };
        });

        function copyTextToClipboard(element, text, copiedSpan) {
            var textArea = document.createElement("textarea");

            /*
            // *** This styling is an extra step which is likely not required. ***
            //
            // Why is it here? To ensure:
            // 1. the element is able to have focus and selection.
            // 2. if the element was to flash render it has minimal visual impact.
            // 3. less flakyness with selection and copying which **might** occur if
            //    the textarea element is not visible.
            //
            // The likelihood is the element won't even render, not even a
            // flash, so some of these are just precautions. However in
            // Internet Explorer the element is visible whilst the popup
            // box asking the user for permission for the web page to
            // copy to the clipboard.
            */

            /* Place in the top-left corner of screen regardless of scroll position. */
            textArea.style.position = 'fixed';
            textArea.style.top = 0;
            textArea.style.left = 0;

            /* Ensure it has a small width and height. Setting to 1px / 1em */
            /* doesn't work as this gives a negative w/h on some browsers. */
            textArea.style.width = '2em';
            textArea.style.height = '2em';

            /* We don't need padding, reducing the size if it does flash render. */
            textArea.style.padding = 0;

            /* Clean up any borders. */
            textArea.style.border = 'none';
            textArea.style.outline = 'none';
            textArea.style.boxShadow = 'none';

            /* Avoid flash of the white box if rendered for any reason. */
            textArea.style.background = 'transparent';


            textArea.value = text;

            document.body.appendChild(textArea);
            textArea.focus();
            textArea.select();

            try {
                var successful = document.execCommand('copy');
                var msg = successful ? 'successful' : 'unsuccessful';
                if (!successful) {
                    console.log('Copying text command was ' + msg);
                } else {
                    element.style.visibility = "hidden";
                    copiedSpan.style.display = "inline-block";
                    setTimeout(function() {
                        element.style.visibility = "visible";
                        copiedSpan.style.display = "none";
                    }, 1000);
                }
            } catch (err) {
                console.log('Oops, unable to copy');
            }

            document.body.removeChild(textArea);
        }
    </script>
 </body>

 </html>
	<html>

	<head>
	<style>
	.copyable {
	display: inline-block;
	padding: 4px;
	border-radius: 4px;
	border: 1px solid #ccc;
	}

	.copyable:hover {
	border-color: #999;
	cursor: copy;
	}

	.copyable-copied {
	position: absolute;
	}

	.copy-icon {
	display: inline-block;
	padding-left: 8px;
	padding-right: 4px;
	margin-left: 4px;
	border-left: 1px solid #ccc;
	}

	.copy-icon svg {
	height: 16px;
	width: 16px;
	}
	</style>
	</head>

	<body>
	<div>
	<span class="copyable">
	Hello World!
	</span>
	</div>
	<div>
	<span class="copyable">
	foobar
	</span>
	</div>

	<script>
	function createCopyIcon() {
	var xmlns = "http://www.w3.org/2000/svg";

	var path = document.createElementNS(xmlns, "path");
	path.setAttribute("d", "M16.5 4H14V1.5C14 0.673 13.327 0 12.5 0H5C4.867 0 4.74 0.053 4.646 0.146L1.146 3.646C1.052 3.74 1 3.867 1 4V14.5C1 15.327 1.673 16 2.5 16H5V18.5C5 19.327 5.673 20 6.5 20H16.5C17.327 20 18 19.327 18 18.5V5.5C18 4.673 17.327 4 16.5 4ZM5 1.207V3.5C5 3.776 4.776 4 4.5 4H2.207L5 1.207ZM2.5 15C2.224 15 2 14.776 2 14.5V5H4.5C5.327 5 6 4.327 6 3.5V1H12.5C12.776 1 13 1.224 13 1.5V4H9C8.867 4 8.74 4.053 8.646 4.146L5.146 7.646C5.052 7.74 5 7.867 5 8V15H2.5ZM9 5.207V7.5C9 7.776 8.776 8 8.5 8H6.207L9 5.207ZM17 18.5C17 18.776 16.776 19 16.5 19H6.5C6.224 19 6 18.776 6 18.5V9H8.5C9.327 9 10 8.327 10 7.5V5H16.5C16.776 5 17 5.224 17 5.5V18.5Z");
	path.setAttribute("fill", "black");

	var svg = document.createElementNS(xmlns, "svg");
	/* svg.setAttribute("width", "20"); */
	/* svg.setAttribute("height", "20"); */
	svg.setAttribute("viewBox", "0 0 20 20");
	svg.setAttribute("fill", "none");
	svg.appendChild(path);

	var copySpan = document.createElement("span");
	copySpan.setAttribute("class", "copy-icon");
	copySpan.appendChild(svg);

	return copySpan;
	}

	function createCopyContentSpan(content) {
	var copyContentSpan = document.createElement("span");
	copyContentSpan.setAttribute("class", "copy-content");
	copyContentSpan.innerText = content;

	return copyContentSpan;
	}

	function createCopiedSpan(content) {
	var span = document.createElement("span");
	span.setAttribute("class", "copyable-copied");
	span.style.display = "none";
	span.innerText = "Copied!";

	return span;
	}

	var copyables = document.getElementsByClassName("copyable");

	Array.from(copyables).forEach(function(copyable) {
	var content = copyable.innerText;
	copyable.innerText = "";

	var copiedSpan = createCopiedSpan();
	copyable.append(copiedSpan);

	var contentSpan = createCopyContentSpan(content);
	copyable.append(contentSpan);


	var copyIcons = copyable.getElementsByClassName("copy-icon");

	if (copyIcons.length == 0) {
	var icon = createCopyIcon();
	copyable.appendChild(icon);
	} else {
	var icon = Array.from(copyIcons)[0]
	}

	copyable.onclick = function() {
	copyTextToClipboard(contentSpan, content, copiedSpan);
	};
	});

	function copyTextToClipboard(element, text, copiedSpan) {
	var textArea = document.createElement("textarea");

	/*
	// * This styling is an extra step which is likely not required. *
	//
	// Why is it here? To ensure:
	// 1. the element is able to have focus and selection.
	// 2. if the element was to flash render it has minimal visual impact.
	// 3. less flakyness with selection and copying which might occur if
	// the textarea element is not visible.
	//
	// The likelihood is the element won't even render, not even a
	// flash, so some of these are just precautions. However in
	// Internet Explorer the element is visible whilst the popup
	// box asking the user for permission for the web page to
	// copy to the clipboard.
	*/

	/* Place in the top-left corner of screen regardless of scroll position. */
	textArea.style.position = 'fixed';
	textArea.style.top = 0;
	textArea.style.left = 0;

	/* Ensure it has a small width and height. Setting to 1px / 1em */
	/* doesn't work as this gives a negative w/h on some browsers. */
	textArea.style.width = '2em';
	textArea.style.height = '2em';

	/* We don't need padding, reducing the size if it does flash render. */
	textArea.style.padding = 0;

	/* Clean up any borders. */
	textArea.style.border = 'none';
	textArea.style.outline = 'none';
	textArea.style.boxShadow = 'none';

	/* Avoid flash of the white box if rendered for any reason. */
	textArea.style.background = 'transparent';


	textArea.value = text;

	document.body.appendChild(textArea);
	textArea.focus();
	textArea.select();

	try {
	var successful = document.execCommand('copy');
	var msg = successful ? 'successful' : 'unsuccessful';
	if (!successful) {
	console.log('Copying text command was ' + msg);
	} else {
	element.style.visibility = "hidden";
	copiedSpan.style.display = "inline-block";
	setTimeout(function() {
	element.style.visibility = "visible";
	copiedSpan.style.display = "none";
	}, 1000);
	}
	} catch (err) {
	console.log('Oops, unable to copy');
	}

	document.body.removeChild(textArea);
	}
	</script>
	</body>

	</html>