By Rob Albin
—
Last update
Aug 20, 2005
—
Installed
2,554 times.
// ==UserScript==
// @name Move and Size TextAreas
// @version 1.2
// @author Rob Albin
// @namespace
// @description Places small graphical overlays on text areas, use the mouse to move, resize, or toggle between maximized/reset. Mouse over the dots for tooltips.
// @include *
// @exclude *gmail.google.com*
// @exclude *.jot.com/*
// ==/UserScript==
/*
USAGE:
- A small tab will appear, fixed in the lower-right of the
browser window, on pages containing textareas.
- Click the tab, and a red and blue dot will appear to the
lower-right of all textareas on the page.
- Mouse over the dots for usage tooltips.
UPDATES:
SEP 1, 2006 - Finally got around to fixing this greasemonkey script to
work with new versions of Firefox... I guess it's been broken for quite
a while, but no one complained and I forgot about the script for a while... ;-)
About 15 minutes to fix, the old (I guess deprecated) way of adding event
listeners is no longer supported by Firefox, had to replace all occurances with
the proper .addEventListener() wrappers for the various "lambda" functions.
ORIGINAL CREDIT:
Rework of David Schontzler's excellent ExpandArea script, which provided a good
framework for extending with more movement code. A short cleanly written script
showing off some fairly advanced DOM manipulation techniques.
UI CHANGES:
- Modified the reset function to a toggle between
semi-maximized and reset (click red dot)
- Added move feature (drag red dot)
- Added alternate "zoom" resize function (press SHIFT key and drag blue dot)
COMMENTS:
- Added zIndex incrementing, so forum pages with
several textareas will always flip the one
you're using on top of others
- Modified event trigger for copying text back to
original textarea from 'onkeyup' to 'onblur' in
the proxy 'txt' element. Definitely a better choice
as long as it works, which it does on the web mail
and forums I tested on.
- I can be reached at albinrw (at) yahoo (dot) com for comments/complaints.
*/
(function() {
// TESTING OPTION: (should leave at false except to test)
var autoHijack = false;
// false: Display the script activation tab
// true: Activate at page load with no tab
function expandArea(elms) {
//alert("running expandArea(elms) function...");
var oldX = 0;
var oldY = 0;
var zIndexCnt = 999;
var elms2 = [];
for(var i = 0; i < elms.length; i++) {
elms2.push(elms[i]);
}
for(var i = 0; i < elms2.length; i++) {
applyArea(elms2[i]);
}
function applyArea(elm) {
//alert("running applyArea(elm) function...");
var w = elm.offsetWidth,
h = elm.offsetHeight;
var pos = getAbsolutePosition(elm);
var origPos = {x: pos.x, y: pos.y};
var overlay = document.createElement("div");
overlay.style.width = w + "px";
overlay.style.height = h + "px";
overlay.style.position = "absolute";
overlay.style.left = pos.x + "px";
overlay.style.top = pos.y + "px";
//overlay.style.padding = "4px";
overlay.style.zIndex = "" + zIndexCnt;
overlay.className = "ExpandArea";
var size = document.createElement("div");
size.style.width = size.style.height = "8px";
size.style.background = "#33f";
size.style.position = "absolute";
size.style.right = "-12px";
size.style.bottom = "-12px";
size.style.cursor = "nw-resize";
size.style.MozBorderRadius = "4px";
size.style.border = "1px solid white";
size.style.zIndex = "" + zIndexCnt;
size.setAttribute("title", "Drag to size text area, or press SHIFT key and drag to zoom");
var offX, offY;
size.addEventListener("mousedown", function(e) {
raiseToTop();
offX = e.layerX + 2; offY = e.layerY + 2;
//window.alert("e.layerX/Y: " + e.layerX + "/" + e.layerY);
document.body.addEventListener("mousemove", doSize, false); // Looks for SHIFT key
document.body.addEventListener("mouseup", endSize, false);
}, false);
overlay.appendChild(size);
var startingPos;
var reset = size.cloneNode(false);
reset.style.background = "#c00";
reset.style.right = "1px";
reset.style.cursor = "pointer";
reset.setAttribute("title", "Click to toggle between reset/maximized, or drag to move text area");
reset.addEventListener("mousedown", function(e) {
startingPos = {x: pos.x, y: pos.y};
raiseToTop();
offX = e.layerX; offY = e.layerY + 2;
document.body.addEventListener("mousemove", doMove, false);
document.body.addEventListener("mouseup", endMove, false);
}, false);
overlay.appendChild(reset);
var txt = document.createElement("textarea");
txt.value = elm.value;
txt.style.width = "100%";
txt.style.height = "100%";
txt.addEventListener("blur", function(e) {
elm.value = this.value;
}, false);
overlay.appendChild(txt);
document.body.appendChild(overlay);
elm.style.visibility = "hidden";
function raiseToTop() {
zIndexCnt++;
size.style.zIndex = "" + zIndexCnt;
reset.style.zIndex = "" + zIndexCnt;
overlay.style.zIndex = "" + zIndexCnt;
//window.alert("zIndexCnt is now: " + zIndexCnt);
}
function doSize(e) {
var x = e.pageX - pos.x - offX;
var y = e.pageY - pos.y - offY;
if (! e.shiftKey) {
// standard resize
overlay.style.width = x + "px";
overlay.style.height = y + "px";
}
else {
// Do "centered zoom" resizing if SHIFT key is held down
if (oldX == 0) { oldX = x; oldY = y; }
pos.x = pos.x + (oldX-x);
overlay.style.left = pos.x + "px";
x = e.pageX - pos.x - offX;
overlay.style.width = x + "px";
pos.y = pos.y + (oldY-y);
overlay.style.top = pos.y + "px";
y = e.pageY - pos.y - offY;
overlay.style.height = y + "px";
oldX = x; oldY = y;
}
}
function endSize(e) {
oldX = 0; oldY = 0;
document.body.removeEventListener("mousemove", doSize, false);
document.body.removeEventListener("mouseup", endSize, false);
}
function doMove(e) {
var x = e.pageX - (pos.x + offX);
var y = e.pageY - (pos.y + offY);
if (oldX == 0) { oldX = x; oldY = y; }
pos.x = pos.x - (oldX-x);
overlay.style.left = pos.x + "px";
pos.y = pos.y - (oldY-y);
overlay.style.top = pos.y + "px";
x = e.pageX - (pos.x + offX);
y = e.pageY - (pos.y + offY);
oldX = x; oldY = y;
}
function endMove(e) {
oldX = 0; oldY = 0;
document.body.removeEventListener("mousemove", doMove, false);
document.body.removeEventListener("mouseup", endMove, false);
if (startingPos.x == pos.x && startingPos.y == pos.y) doResetMaxToggle();
}
function doResetMaxToggle() {
var isInOrigPos =
(pos.x == origPos.x &&
pos.y == origPos.y &&
overlay.style.width == w + "px" &&
overlay.style.height == h + "px") ? true : false ;
if (isInOrigPos) {
pos.x = 4;
pos.y = window.scrollY + 4;
overlay.style.left = pos.x + "px";
overlay.style.top = pos.y + "px";
overlay.style.width = (window.innerWidth - 50) + "px";
overlay.style.height = (window.innerHeight - 50) + "px";
}
else {
pos.x = origPos.x; pos.y = origPos.y;
overlay.style.left = pos.x + "px";
overlay.style.top = pos.y + "px";
overlay.style.width = w + "px";
overlay.style.height = h + "px";
}
}
}
function getAbsolutePosition(elm) {
var x = 0, y = 0;
while( elm && elm != document.body ) {
x += elm.offsetLeft;
y += elm.offsetTop;
elm = elm.offsetParent;
}
return { x: x, y: y };
}
} // end expandArea()
function setup() {
//alert("entered setup() function..." );
if( !document.getElementsByTagName("textarea").length ) {
//alert("no textarea elements found on page, exiting script...");
return;
}
if (autoHijack) {
//alert("autohijacking all textarea elements found on page...");
expandArea(document.getElementsByTagName("textarea"));
}
else {
//alert("setting up trigger button...");
var on = document.createTextNode("Activate TextAreas Script");
var off = document.createTextNode(String.fromCharCode(160) + String.fromCharCode(171) + String.fromCharCode(160));
var html = " « ";
var trigger = document.createElement("div");
trigger.appendChild( off );
with(trigger.style) {
position = "fixed";
right = bottom = "0px";
color = "black";
background = "white";
border = "1px solid";
padding = "3px";
font = "10px sans-serif";
cursor = "pointer";
MozOpacity = ".4";
MozBorderRadiusTopleft = "8px";
MozBorderRadiusBottomleft = "8px";
}
trigger.addEventListener("mouseover", function(e) {
//alert("running onmouseover() event function...");
this.replaceChild(on, off);
}, false);
trigger.addEventListener("mouseout", function(e) {
//alert("running onmouseout() event function...");
this.replaceChild(off, on);
}, false);
trigger.addEventListener("click", function(e) {
//alert("running onclick() event function...");
expandArea(document.getElementsByTagName("textarea"));
this.parentNode.removeChild(this);
}, false);
document.body.appendChild(trigger);
}
} // end setup()
window.addEventListener("load", setup, false);
})();
