# All files / coverage/lcov-report sorter.js

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     /* eslint-disable */
    var addSorting = (function() {
        'use strict';
        var cols,
            currentSort = {
                index: 0,
                desc: false
            };

        // returns the summary table element
        function getTable() {
            return document.querySelector('.coverage-summary');
        }
        // returns the thead element of the summary table
        function getTableHeader() {
            return getTable().querySelector('thead tr');
        }
        // returns the tbody element of the summary table
        function getTableBody() {
            return getTable().querySelector('tbody');
        }
        // returns the th element for nth column
        function getNthColumn(n) {
            return getTableHeader().querySelectorAll('th')[n];
        }

        // loads all columns
        function loadColumns() {
            var colNodes = getTableHeader().querySelectorAll('th'),
                colNode,
                cols = [],
                col,
                i;

            for (i = 0; i < colNodes.length; i += 1) {
                colNode = colNodes[i];
                col = {
                    key: colNode.getAttribute('data-col'),
                    sortable: !colNode.getAttribute('data-nosort'),
                    type: colNode.getAttribute('data-type') || 'string'
                };
                cols.push(col);
                if (col.sortable) {
                    col.defaultDescSort = col.type === 'number';
                    colNode.innerHTML =
                        colNode.innerHTML + '<span class="sorter"></span>';
                }
            }
            return cols;
        }
        // attaches a data attribute to every tr element with an object
        // of data values keyed by column name
        function loadRowData(tableRow) {
            var tableCols = tableRow.querySelectorAll('td'),
                colNode,
                col,
                data = {},
                i,
                val;
            for (i = 0; i < tableCols.length; i += 1) {
                colNode = tableCols[i];
                col = cols[i];
                val = colNode.getAttribute('data-value');
                if (col.type === 'number') {
                    val = Number(val);
                }
                data[col.key] = val;
            }
            return data;
        }
        // loads all row data
        function loadData() {
            var rows = getTableBody().querySelectorAll('tr'),
                i;

            for (i = 0; i < rows.length; i += 1) {
                rows[i].data = loadRowData(rows[i]);
            }
        }
        // sorts the table using the data for the ith column
        function sortByIndex(index, desc) {
            var key = cols[index].key,
                sorter = function(a, b) {
                    a = a.data[key];
                    b = b.data[key];
                    return a < b ? -1 : a > b ? 1 : 0;
                },
                finalSorter = sorter,
                tableBody = document.querySelector('.coverage-summary tbody'),
                rowNodes = tableBody.querySelectorAll('tr'),
                rows = [],
                i;

            if (desc) {
                finalSorter = function(a, b) {
                    return -1 * sorter(a, b);
                };
            }

            for (i = 0; i < rowNodes.length; i += 1) {
                rows.push(rowNodes[i]);
                tableBody.removeChild(rowNodes[i]);
            }

            rows.sort(finalSorter);

            for (i = 0; i < rows.length; i += 1) {
                tableBody.appendChild(rows[i]);
            }
        }
        // removes sort indicators for current column being sorted
        function removeSortIndicators() {
            var col = getNthColumn(currentSort.index),
                cls = col.className;

            cls = cls.replace(/ sorted$/, '').replace(/ sorted-desc$/, '');
            col.className = cls;
        }
        // adds sort indicators for current column being sorted
        function addSortIndicators() {
            getNthColumn(currentSort.index).className += currentSort.desc
                ? ' sorted-desc'
                : ' sorted';
        }
        // adds event listeners for all sorter widgets
        function enableUI() {
            var i,
                el,
                ithSorter = function ithSorter(i) {
                    var col = cols[i];

                    return function() {
                        var desc = col.defaultDescSort;

                        if (currentSort.index === i) {
                            desc = !currentSort.desc;
                        }
                        sortByIndex(i, desc);
                        removeSortIndicators();
                        currentSort.index = i;
                        currentSort.desc = desc;
                        addSortIndicators();
                    };
                };
            for (i = 0; i < cols.length; i += 1) {
                if (cols[i].sortable) {
                    // add the click event handler on the th so users
                    // dont have to click on those tiny arrows
                    el = getNthColumn(i).querySelector('.sorter').parentElement;
                    if (el.addEventListener) {
                        el.addEventListener('click', ithSorter(i));
                    } else {
                        el.attachEvent('onclick', ithSorter(i));
                    }
                }
            }
        }
        // adds sorting functionality to the UI
        return function() {
            if (!getTable()) {
                return;
            }
            cols = loadColumns();
            loadData();
            addSortIndicators();
            enableUI();
        };
    })();

    window.addEventListener('load', addSorting);