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xtab.js
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(function($) {
$.fn.xtab = function() {
var id = $(this).attr("id");
var opts = $(this).data("opts");
var args = [];
for (var i = 0; i < arguments.length; i++) args.push(arguments[i]); // arguments is not a regular array
function n2c(n) {
if (n < 26)
return String.fromCharCode(n + 65);
else
return String.fromCharCode(n/26 + 64) + String.fromCharCode(n%26 + 65);
}
function c2n(c) {
if (c.length == 1) {
return c.charCodeAt(0) - 65;
} else if (c.length == 2) {
return (c.charCodeAt(0) - 65) * 26 + c.charCodeAt(1) - 65;
}
}
function n2r(n) {
return n + 1;
}
function r2n(r) {
return parseInt(r) - 1;
}
function ref(r, c) {
return n2c(c) + n2r(r);
}
function find() {
var r = -1;
var c = -1;
if (args.length > 0 && typeof args[0] === "string") {
var ref = args.shift().toUpperCase();
r = r2n(ref.replace(/^[A-Z]*/, ""));
c = c2n(ref.replace(/[0-9]*$/, ""));
} else if (args.length > 1) {
r = parseInt(args.shift());
c = parseInt(args.shift());
}
if (r >= 0 && c >=0)
return $("#" + id + "-" + r + "-" + c);
}
function val(c, v) {
if (c === undefined) return;
if (v === undefined) return c.val();
if ($.isPlainObject(v)) {
val(c, v.value);
if (v.readonly !== undefined)
readonly(c, v.readonly);
if (v.color !== undefined)
color(c, v.color);
} else
c.val(v);
}
function css(c, a, v) {
if (c === undefined || a === undefined) return;
if (v === undefined) return c.css(a);
c.css(a, v);
}
function color(c, v) {
css(c, "background-color", v)
}
function readonly(c, v) {
if (c === undefined) return;
if (v === undefined) return c.prop("readonly");
c.prop("readonly", v);
if (v) c.addClass("readonly");
else c.removeClass("readonly");
}
var act = args.shift();
if (act == "init") {
opts = args.shift();
if (opts === undefined) opts = {};
if (opts.rows === undefined || parseInt(opts.rows) < 0) opts.rows = 10;
if (opts.cols === undefined || parseInt(opts.cols) < 0) opts.cols = 5;
var tab = $("<table/>").addClass("xtab"), tabh;
if (opts.split)
tabh = $("<table/>").addClass("xtab");
if (opts.collabels) {
var row = $("<tr/>");
if (opts.rowlabels)
var th = $("<th/>").append(opts.mainlabel ? opts.mainlabel : " ");
if (opts.split)
tabh.append($("<tr/>").append(th));
else
row.append(th);
for (var c = 0; c < opts.cols; c++) {
if ($.isFunction(opts.collabels)) {
var v = opts.collabels.call(this, c);
if (!v) continue;
row.append(v.is && v.is("th") ? v : $("<th/>", { id: id + "-col-" + c }).text(v));
} else
row.append($("<th/>", { id: id + "-col-" + c }).text(n2c(c)));
}
tab.append(row);
}
for (var r = 0; r < opts.rows; r++) {
var row = $("<tr/>");
if (opts.rowlabels) {
var th;
if ($.isFunction(opts.rowlabels)) {
var v = opts.rowlabels.call(this, r);
if (!v) continue;
th = v.is && v.is("th") ? v : $("<th/>", { id: id + "-row-" + r }).text(v);
} else
th = $("<th/>", { id: id + "-row-" + r }).text(n2r(r));
if (opts.split)
tabh.append($("<tr/>").append(th));
else
row.append(th);
}
for (var c = 0; c < opts.cols; c++) {
var cell = $("<input/>", { type: "text", id: id + "-" + r + "-" + c }).prop("readonly", false).data("ref", ref(r, c)).click(function() { $(this).select(); });
var v = undefined;
if ($.isFunction(opts.values))
v = opts.values.call(this, r, c);
else if (opts.values !== undefined && opts.values[r] !== undefined && opts.values[r][c] !== undefined)
v = opts.values[r][c];
if (v !== undefined)
val(cell, v);
if (opts.change !== undefined) cell.change(function() {
var cell = $(this);
var n = cell.attr("id").split("-");
opts.change.call(this, parseInt(n[1]), parseInt(n[2]), cell.val(), cell.data("ref"));
});
cell.focusout(function() {
var cell = $(this);
var n = cell.attr("id").split("-");
var r = parseInt(n[1]);
var c = parseInt(n[2]);
var ch = $("#" + id + "-col-" + c);
if (ch)
ch.removeClass("current");
var rh = $("#" + id + "-row-" + r);
if (rh)
rh.removeClass("current");
});
cell.focusin(function() {
var cell = $(this);
var n = cell.attr("id").split("-");
var r = parseInt(n[1]);
var c = parseInt(n[2]);
var ch = $("#" + id + "-col-" + c);
if (ch)
ch.addClass("current");
var rh = $("#" + id + "-row-" + r);
if (rh)
rh.addClass("current");
if (opts.focus !== undefined)
opts.focus.call(this, r, c, cell.val(), cell.data("ref"));
});
var w = 0;
if (opts.widths !== undefined)
w = $.isFunction(opts.widths) ? opts.widths.call(this, c) : opts.widths[c] !== undefined ? opts.widths[c] : opts.widths;
if (w !== undefined && w > 0)
cell.css("width", Math.round(w) + "px");
row.append($("<td/>").append(cell.keydown(function(e) {
var k = e.keyCode;
var p = e.target.selectionStart;
var ro = $(this).prop("readonly")
if (k == 37 && (ro || p == 0)) { // left
e.preventDefault();
var n = $(this).attr("id").split("-");
var i = parseInt(n[2]);
if (i > 0) { var cell = $("#" + id + "-" + n[1] + "-" + (i - 1)); cell.select(); cell.focus(); }
} else if (k == 38) { // up
e.preventDefault();
var n = $(this).attr("id").split("-");
var i = parseInt(n[1]);
if (i > 0) { var cell = $("#" + id + "-" + (i - 1) + "-" + n[2]); cell.select(); cell.focus(); };
} else if (k == 39 && (ro || p == e.target.value.length)) { // right
e.preventDefault();
var n = $(this).attr("id").split("-");
var i = parseInt(n[2]);
if (i < opts.cols) { var cell = $("#" + id + "-" + n[1] + "-" + (i + 1)); cell.select(); cell.focus(); }
} else if (k == 40 || k == 13) { // down or enter
e.preventDefault();
var n = $(this).attr("id").split("-");
var i = parseInt(n[1]);
if (i < opts.rows) { var cell = $("#" + id + "-" + (i + 1) + "-" + n[2]); cell.select(); cell.focus(); }
} else if (k == 8 && ro) { // backspace (to avoid going back one page e.g. in Chrome)
e.preventDefault();
}
})));
}
tab.append(row);
}
if (opts.split) {
var ct = $("<div/>", { style: "white-space: nowrap; overflow: hidden;" });
ct.append($("<div/>", { style: "float: left;" }).append(tabh));
ct.append($("<div/>", { style: "overflow: auto;" }).append(tab));
$(this).append(ct);
} else
$(this).append(tab);
$(this).data("opts", opts);
var cell = $("#" + id + "-0-0");
cell.select();
cell.focus();
return this;
} else if (act == "val") {
if (args.length == 0) {
var t = [];
$(this).find(".xtab tr").each(function() {
var row = [];
$(this).find("input").each(function() {
row.push($(this).val());
});
if (row.length > 0) t.push(row);
});
return t;
} else
return val(find(), args[0]);
} else if (act == "focus") {
var cell = find();
cell.select();
cell.focus();
return cell;
} else if (act == "css") {
return css(find(), args[0], args[1]);
} else if (act == "color") {
return color(find(), args[0]);
} else if (act == "readonly") {
return readonly(find(), args[0]);
} else {
console.error("Unknown action: " + act);
}
};
}(jQuery));