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99 lines
3.2 KiB
JavaScript
99 lines
3.2 KiB
JavaScript
/*! © SpryMedia Ltd - datatables.net/license */
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import DataTable from 'datatables.net';
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/**
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* This data rendering helper method can be useful for cases where you have
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* potentially large data strings to be shown in a column that is restricted by
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* width. The data for the column is still fully searchable and sortable, but if
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* it is longer than a give number of characters, it will be truncated and
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* shown with ellipsis. A browser provided tooltip will show the full string
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* to the end user on mouse hover of the cell.
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*
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* This function should be used with the `dt-init columns.render` configuration
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* option of DataTables.
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*
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* It accepts three parameters:
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*
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* 1. `-type integer` - The number of characters to restrict the displayed data
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* to.
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* 2. `-type boolean` (optional - default `false`) - Indicate if the truncation
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* of the string should not occur in the middle of a word (`true`) or if it
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* can (`false`). This can allow the display of strings to look nicer, at the
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* expense of showing less characters.
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* 2. `-type boolean` (optional - default `false`) - Escape HTML entities
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* (`true`) or not (`false` - default).
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*
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* @name ellipsis
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* @summary Restrict output data to a particular length, showing anything
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* longer with ellipsis and a browser provided tooltip on hover.
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* @author [Allan Jardine](http://datatables.net)
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* @requires DataTables 1.10+
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*
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* @returns {Number} Calculated average
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*
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* @example
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* // Restrict a column to 17 characters, don't split words
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* $('#example').DataTable( {
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* columnDefs: [ {
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* targets: 1,
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* render: DataTable.render.ellipsis( 17, true )
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* } ]
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* } );
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*
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* @example
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* // Restrict a column to 10 characters, do split words
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* $('#example').DataTable( {
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* columnDefs: [ {
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* targets: 2,
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* render: DataTable.render.ellipsis( 10 )
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* } ]
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* } );
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*/
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DataTable.render.ellipsis = function (cutoff, wordbreak, escapeHtml) {
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var esc = function (t) {
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return ('' + t)
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.replace(/&/g, '&')
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.replace(/</g, '<')
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.replace(/>/g, '>')
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.replace(/"/g, '"');
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};
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return function (d, type, row) {
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// Order, search and type get the original data
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if (type !== 'display') {
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return d;
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}
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if (typeof d !== 'number' && typeof d !== 'string') {
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if (escapeHtml) {
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return esc(d);
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}
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return d;
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}
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d = d.toString(); // cast numbers
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if (d.length <= cutoff) {
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if (escapeHtml) {
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return esc(d);
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}
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return d;
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}
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var shortened = d.substr(0, cutoff - 1);
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// Find the last white space character in the string
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if (wordbreak) {
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shortened = shortened.replace(/\s([^\s]*)$/, '');
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}
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// Protect against uncontrolled HTML input
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if (escapeHtml) {
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shortened = esc(shortened);
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}
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return ('<span class="ellipsis" title="' +
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esc(d) +
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'">' +
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shortened +
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'…</span>');
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};
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};
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export default DataTable;
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