By gregthe1
—
Last update
Mar 1, 2008
—
Installed
45 times.
// Meta Utility Lil Helper
// version 0.1 BETA!
// 2008-2-08
// Copyright (c) 2008 Blended Technologies LLC
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script.
//
// To install, you need Greasemonkey: http://greasemonkey.mozdev.org/
// Then restart Firefox and revisit this script.
// Under Tools, there will be a new menu item to "Install User Script".
// Accept the default configuration and install.
//
// To uninstall, go to Tools/Manage User Scripts,
// select "Hello World", and click Uninstall.
//
// --------------------------------------------------------------------
//
// ==UserScript==
// @name Meta Utility Lil Helper
// @namespace http://utilitymill.com
// @description Make all text areas on a page enter four spaces on a tab key hit
// @include http://utilitymill.com/utility/MetaUtility
// @include http://utilitymill.com/utility/MetaUtility_Improved
// ==/UserScript==
GM_log('starting script');
//Define a class to handle all of the history tracking
function History(size) {
if (!(GM_setValue && GM_getValue)) {
alert('Please upgrade to the latest version of Greasemonkey.');
return;
}
this.index=0;
this.size=size;
//oldest items are at the front of the array
//newest added to end
this.code_history=new Array();
}
History.prototype.load=function() {
this.code_history=new Array(); //reset
for (var i=0; i<this.size; i++) {
text=GM_getValue(String(i),false);
if (text) {
this.code_history.push(text);
}
else {break;}
}
this.index=this.code_history.length-1;
}
History.prototype.save=function() {
//TODO: clear out any old saved history?
for (var i=0; i<this.code_history.length; i++) {
GM_setValue(String(i),this.code_history[i]);
}
}
History.prototype.get_next_older=function() {
this.index=Math.max(this.index-1,0);
return this.code_history[this.index];
}
History.prototype.get_next_newer=function() {
this.index=Math.min(this.index+1,this.code_history.length);
return this.code_history[this.index];
}
History.prototype.add=function(text) {
while (this.code_history.length>=this.size) {
//shift off oldest items until we reach our target size
//of size-1, since we need to add one now.
this.code_history.shift();
}
this.code_history.push(text);
this.index=this.code_history.length-1;
}
//Use window for global vars since GM wraps the whole script in a function
//run once. new makes that prototype junk work
window.oHistory=new History(10);
window.oHistory.load();
document.addEventListener('click',function(event) {
//Capture Go button click and save text area code to GM persistent storage
//GM_log('entering click event');
//GM_log('target:'+event.target.name);
if (event.target.name && event.target.name=='btnRun') {
//GM_log('entering save code cond');
var code=document.forms[1].elements.namedItem("SOURCE").value;
//GM_log('code to save:'+ code);
window.oHistory.add(code);
window.oHistory.save();
// if you want to prevent the default click action
// (such as following a link), use these two commands:
//event.stopPropagation();
//event.preventDefault();
}
}, true);
document.addEventListener('keydown', function(event) {
//Capture keydown event and insert a tab in proper text area if tab key was hit
//Also detect ctrl + up or down arrow to scroll through last 10 programs entered
//References:
//http://diveintogreasemonkey.org/patterns/intercept-clicks.html
//http://www.answermysearches.com/here-is-how-to-make-the-tab-work-in-a-textarea-javascript/265/
//
// event.target is the element that was clicked
// do whatever you want here
//GM_log('event triggered');
//GM_log(event.target.name);
//GM_log(event.keyCode);
//GM_log('ctrl:'+event.ctrlKey);
if (event.target.name && event.target.name=='SOURCE') {
//A function to capture a tab keypress in a textarea and insert 4 spaces and NOT change focus.
//9 is the tab key, except maybe it's 25 in Safari? oh well for them ...
//GM_log('entered tab code');
if(event.keyCode==9){
var oldscroll = event.target.scrollTop; //So the scroll won't move after a tabbing
event.returnValue=false; //This doesn't seem to help anything, maybe it helps for IE
//Check if we're in a firefox deal
if (event.target.setSelectionRange) {
var pos_to_leave_caret=event.target.selectionStart+4;
//Put in the tab
event.target.value = event.target.value.substring(0,event.target.selectionStart) + ' ' + event.target.value.substring(event.target.selectionEnd,event.target.value.length);
//There's no easy way to have the focus stay in the textarea, below seems to work though
setTimeout("var t=document.forms[1].SOURCE; t.focus(); t.setSelectionRange(" + pos_to_leave_caret + ", " + pos_to_leave_caret + ");", 0);
}
//Handle IE
else {
// IE code, pretty simple really
document.selection.createRange().text=' ';
}
event.target.scrollTop = oldscroll; //put back the scroll
}
if ((event.ctrlKey) && ((event.keyCode==38) || (event.keyCode==40))) {
//Handle scrolling through code history
//GM_log('Ctrl + ' + event.keyCode + ' pressed');
if (event.keyCode==38) {
//up arrow
//GM_log('up arrow cond hit');
var code=window.oHistory.get_next_older();
}
else if (event.keyCode==40) {
//down arrow
//GM_log('down arrow cond hit');
var code=window.oHistory.get_next_newer();
}
//GM_log('got code:' + code);
if (code) {
event.target.value=code;
}
// if you want to prevent the default click action
// (such as following a link), use these two commands:
event.stopPropagation();
event.preventDefault();
}
}
}, true);
