o2system / gear

src/Views/assets/js/print-out.js

/*
 * This file is part of the O2System Framework package.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @author         Steeve Andrian Salim
 * @copyright      Copyright (c) Steeve Andrian Salim
 */
// ------------------------------------------------------------------------
(function () {

This code seems to be duplicated in your project.

    var pre = document.getElementsByTagName('pre'),
        preLen = pre.length;
    for (var i = 0; i < preLen; i++) {
        pre[i].innerHTML = '<span class="line-number"></span>' + pre[i].innerHTML + '<span class="clear-both"></span>';
        var linesNum = pre[i].innerHTML.split(/\n/).length;
        for (var number = 0; number < linesNum; number++) {
            var lineNumber = pre[i].getElementsByTagName('span')[0];
            lineNumber.innerHTML += '<span>' + (number + 1) + '</span>';
        }
    }
})();

function gearGetSelectionText() {
    var selectedText = ""
    if (window.getSelection) { // all modern browsers and IE9+
        selectedText = window.getSelection().toString()
    }
    return selectedText;
}

function gearCopySelectionText() {
    var isCopied // var to check whether execCommand successfully executed
    try {
        isCopied = document.execCommand("copy") // run command to copy selected text to clipboard
    } catch (e) {
        isCopied = false
    }
    return isCopied;
}

function gearSelectCode() {
    if (document.selection) {
        var range = document.body.createTextRange();
        range.moveToElementText(document.getElementById('gear-code-container'));
        range.select();
    } else if (window.getSelection) {
        var range = document.createRange();

The variable range already seems to be declared on line 44. Consider using another variable name or omitting the var keyword.

        range.selectNode(document.getElementById('gear-code-container'));
        window.getSelection().addRange(range);
    }
}

function gearCopyCode() {
    var selected = gearGetSelectionText() // call gearGetSelectionText() to see what was selected
    if (selected.length > 0) { // if selected text length is greater than 0
        var isCopied = gearCopySelectionText() // copy user selected text to clipboard

The variable isCopied seems to be never used. Consider removing it.

        alert('Copied to clipboard');

The alert UI element is often considered obtrusive and is generally only used as a temporary measure. Consider replacing it with another UI element.

    }
}