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Filename :
editabletable.js
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/*global $, window*/ $.fn.editableTableWidget = function (options) { 'use strict'; return $(this).each(function () { var buildDefaultOptions = function () { var opts = $.extend({}, $.fn.editableTableWidget.defaultOptions); opts.editor = opts.editor.clone(); return opts; }, activeOptions = $.extend(buildDefaultOptions(), options), ARROW_LEFT = 37, ARROW_UP = 38, ARROW_RIGHT = 39, ARROW_DOWN = 40, ENTER = 13, ESC = 27, TAB = 9, element = $(this), editor = activeOptions.editor.css('position', 'absolute').hide().appendTo(element.parent()), active, showEditor = function (select) { active = element.find('td:focus'); if (active.length) { editor.val(active.text()) .removeClass('error') .show() .offset(active.offset()) .css(active.css(activeOptions.cloneProperties)) .width(active.width()) .height(active.height()) .focus(); if (select) { editor.select(); } } }, setActiveText = function () { var text = editor.val(), evt = $.Event('change'), originalContent; if (active.text() === text || editor.hasClass('error')) { return true; } originalContent = active.html(); active.text(text).trigger(evt, text); if (evt.result === false) { active.html(originalContent); } }, movement = function (element, keycode) { if (keycode === ARROW_RIGHT) { return element.next('td'); } else if (keycode === ARROW_LEFT) { return element.prev('td'); } else if (keycode === ARROW_UP) { return element.parent().prev().children().eq(element.index()); } else if (keycode === ARROW_DOWN) { return element.parent().next().children().eq(element.index()); } return []; }; editor.blur(function () { setActiveText(); editor.hide(); }).keydown(function (e) { if (e.which === ENTER) { setActiveText(); editor.hide(); active.focus(); e.preventDefault(); e.stopPropagation(); } else if (e.which === ESC) { editor.val(active.text()); e.preventDefault(); e.stopPropagation(); editor.hide(); active.focus(); } else if (e.which === TAB) { active.focus(); } else if (this.selectionEnd - this.selectionStart === this.value.length) { var possibleMove = movement(active, e.which); if (possibleMove.length > 0) { possibleMove.focus(); e.preventDefault(); e.stopPropagation(); } } }) .on('input paste', function () { var evt = $.Event('validate'); active.trigger(evt, editor.val()); if (evt.result === false) { editor.addClass('error'); } else { editor.removeClass('error'); } }); element.on('click keypress dblclick', showEditor) .css('cursor', 'pointer') .keydown(function (e) { var prevent = true, possibleMove = movement($(e.target), e.which); if (possibleMove.length > 0) { possibleMove.focus(); } else if (e.which === ENTER) { showEditor(false); } else if (e.which === 17 || e.which === 91 || e.which === 93) { showEditor(true); prevent = false; } else { prevent = false; } if (prevent) { e.stopPropagation(); e.preventDefault(); } }); element.find('td').prop('tabindex', 1); $(window).on('resize', function () { if (editor.is(':visible')) { editor.offset(active.offset()) .width(active.width()) .height(active.height()); } }); }); }; $.fn.editableTableWidget.defaultOptions = { cloneProperties: ['padding', 'padding-top', 'padding-bottom', 'padding-left', 'padding-right', 'text-align', 'font', 'font-size', 'font-family', 'font-weight', 'border', 'border-top', 'border-bottom', 'border-left', 'border-right'], editor: $('<input>') };