By gollum
—
Last update
May 20, 2008
—
Installed
130 times.
// ==UserScript==
// @name Resizable Table Columns
// @description Resizable Table Columns
// @version 0.2
// @include *
// ==/UserScript==
// **** ADAPTED FROM HTML DEMO AT.... *******
// DEMO = http://bz.var.ru/comp/web/resizable.html
// JS = http://bz.var.ru/comp/web/resizable-tables.js
// ******* ORIGINAL SCRIPT HEADER *******
// Resizable Table Columns.
// version: 1.0
//
// (c) 2006, bz
//
// 25.12.2006: first working prototype
// 26.12.2006: now works in IE as well but not in Opera (Opera is @#$%!)
// 27.12.2006: changed initialization, now just make class='resizable' in table and load script
// ==========================================
// Greasemonkey Changelog
// 20080520 adapted by gollum for use in Greasemonkey scripts
// stripped out the cookie code
// removed references to "this" function calls
// added eventListeners/removeEventListeners
// wrapped all in anonymous function
// added script auto-updater
(function() {
if (GM_getValue) {
// SCRIPT UPDATE CHECKER by 'Jarett' http://userscripts.org/scripts/show/20145
var version_scriptNum = 26900; // Change this to the number given to the script by userscripts.org (check the address bar)
var version_timestamp = 1211248887531; // (new Date()).getTime() Used to differentiate one version of the script from an older one. Use the Date.getTime() function to get a value for this.
function updateCheck(forced) {if((forced)||(parseInt(GM_getValue("lastUpdate", "0")) + 86400000 <= (new Date().getTime()))) {try {GM_xmlhttpRequest({method: "GET",url: "http://userscripts.org/scripts/review/" + version_scriptNum + "?" + new Date().getTime(),headers: {'Cache-Control': 'no-cache'},onload: function(xhrResponse) {GM_setValue("lastUpdate", new Date().getTime() + ""); var rt = xhrResponse.responseText.replace(/ ?/gm, " ").replace(/<li>/gm, "\n").replace(/<[^>]*>/gm, ""); var scriptName = (/@name\s*(.*?)\s*$/m.exec(rt))[1]; GM_setValue("targetScriptName", scriptName); if (parseInt(/version_timestamp\s*=\s*([0-9]+)/.exec(rt)[1]) > version_timestamp) {if (confirm("There is an update available for the Greasemonkey script \"" + scriptName + ".\"\nWould you like to go to the install page now?")) {GM_openInTab("http://userscripts.org/scripts/show/" + version_scriptNum);}} else if (forced) {alert("No update is available for \"" + scriptName + ".\"");}}});} catch (err) {if (forced) {alert("An error occurred while checking for updates:\n" + err);}}}} GM_registerMenuCommand("++ " + GM_getValue("targetScriptName", "Resizable Table Columns") + " - Manual Update Check ++", function() {updateCheck(true);}); updateCheck(false);
// ENDS UPDATE CHECKER
}
function preventEvent(e) {
var ev = e || window.event;
if (ev.preventDefault) ev.preventDefault();
else ev.returnValue = false;
if (ev.stopPropagation)
ev.stopPropagation();
return false;
}
function getWidth(x) {
if (x.currentStyle)
// in IE
var y = x.clientWidth - parseInt(x.currentStyle["paddingLeft"]) - parseInt(x.currentStyle["paddingRight"]);
// for IE5: var y = x.offsetWidth;
else if (window.getComputedStyle)
// in Gecko
var y = document.defaultView.getComputedStyle(x,null).getPropertyValue("width");
return y || 0;
}
// main class prototype
function ColumnResize(table) {
if (table.tagName != 'TABLE') return;
// this.id = table.id;
// ============================================================
// private data
// var self = this;
var dragColumns = table.rows[0].cells; // first row columns, used for changing of width
if (!dragColumns) return; // return if no table exists or no one row exists
var dragColumnNo; // current dragging column
var dragX; // last event X mouse coordinate
// var saveOnmouseup; // save document onmouseup event handler
// var saveOnmousemove; // save document onmousemove event handler
var saveBodyCursor; // save body cursor property
// ============================================================
// methods
// ============================================================
// do changes columns widths
// returns true if success and false otherwise
var changeColumnWidth = function(no, w) {
if (!dragColumns) return false;
if (no < 0) return false;
if (dragColumns.length < no) return false;
if (parseInt(dragColumns[no].style.width) <= -w) return false;
if (dragColumns[no+1] && parseInt(dragColumns[no+1].style.width) <= w) return false;
dragColumns[no].style.width = parseInt(dragColumns[no].style.width) + w +'px';
if (dragColumns[no+1])
dragColumns[no+1].style.width = parseInt(dragColumns[no+1].style.width) - w + 'px';
return true;
}
// ============================================================
// do drag column width
var columnDrag = function(e) {
var e = e || window.event;
var X = e.clientX || e.pageX;
if (!changeColumnWidth(dragColumnNo, X-dragX)) {
// stop drag!
stopColumnDrag(e);
}
dragX = X;
// prevent other event handling
preventEvent(e);
return false;
}
// ============================================================
// stops column dragging
var stopColumnDrag = function(e) {
var e = e || window.event;
if (!dragColumns) return;
// restore handlers & cursor
document.removeEventListener("mouseup", stopColumnDrag, false);
document.removeEventListener("mousemove", columnDrag, false);
document.body.style.cursor = saveBodyCursor;
preventEvent(e);
}
// ============================================================
// init data and start dragging
var startColumnDrag = function(e) {
var e = e || window.event;
// remember dragging object
dragColumnNo = (e.target || e.srcElement).parentNode.parentNode.cellIndex;
dragX = e.clientX || e.pageX;
// set up current columns widths in their particular attributes
// do it in two steps to avoid jumps on page!
var colWidth = new Array();
for (var i=0; i<dragColumns.length; i++)
colWidth[i] = parseInt( getWidth(dragColumns[i]) );
for (var i=0; i<dragColumns.length; i++) {
dragColumns[i].width = ""; // for sure
dragColumns[i].style.width = colWidth[i] + "px";
}
// saveOnmouseup = document.onmouseup;
document.addEventListener("mouseup", stopColumnDrag, false);
saveBodyCursor = document.body.style.cursor;
document.body.style.cursor = 'w-resize';
// fire!
// saveOnmousemove = document.onmousemove;
document.addEventListener("mousemove", columnDrag, false);
preventEvent(e);
}
// prepare table header to be draggable
// it runs during class creation
for (var i=0; i<dragColumns.length; i++) {
dragColumns[i].innerHTML = "<div style='position:relative;height:100%;width:100%'>"+
"<div style='"+
"position:absolute;height:100%;width:5px;margin-right:-5px;"+
"left:100%;top:0px;cursor:w-resize;z-index:10;'>"+
"</div>"+
dragColumns[i].innerHTML+
"</div>";
// BUGBUG: calculate real border width instead of 5px!!!
dragColumns[i].firstChild.firstChild.addEventListener("mousedown", startColumnDrag, false);;
}
}
// select all tables and make resizable those that have 'resizable' class
var resizableTables = new Array();
function ResizableColumns() {
var tables = document.getElementsByTagName('table');
for (var i=0; tables.item(i); i++) {
if (tables[i].className.match(/resizable/)) {
// generate id
if (!tables[i].id) tables[i].id = 'table'+(i+1);
// make table resizable
resizableTables[resizableTables.length] = new ColumnResize(tables[i]);
}
}
// alert(resizableTables.length + ' tables was added.');
}
// init resizable tables
ResizableColumns();
})();
//============================================================
//
// Usage. In your html code just include the follow:
//
//============================================================
// <table class='resizable'>
// ...
// </table>
//============================================================
