// ==UserScript==
// @name CheckBoxMate for Greasemonkey
// @namespace http://macdougalmedia.com/2010/04/07/checkboxmate-for-greasemonkey/
// @description "Check multiple checkboxes with ease by drawing a box around them to automatically select them all." Converted from nrlz's amazing CheckBoxMate Firefox Add-on (https://addons.mozilla.org/en-US/firefox/addon/9740). Works with Firefox 3.6.3.
// @author scottmweaver
// @date 2010-04-07
// @include *
// ==/UserScript==
const CheckBoxMate = {
active: false,
scrollX: 0,
scrollY: 0,
pageX: 0,
pageY: 0,
addEvt: function(e, f, c) {
document.addEventListener(e, f, c ? true : false, true);
},
delEvt: function(e, f, c) {
document.removeEventListener(e, f, c ? true : false, true);
},
init: function() {
this.addEvt("mousedown", this.onDown);
},
uninit: function() {
var d = CheckBoxMate;
d.doc = 0;
d.boxes = [];
d.selected = [];
d.delEvt("mousedown", d.onDown);
d.delEvt("mousemove", d.onMove, 1);
d.delEvt("mouseup", d.onUp, 1);
removeEventListener("unload", arguments.callee, false);
},
onDown: function(e) {
var t = e.target, d = CheckBoxMate;
if(d.active) {
d.clear();
} else if(t && // t instanceof HtmlInputText &&
(t.type == "checkbox" || t.type == "CHECKBOX")) {
d.doc = t.ownerDocument;
if(d.doc.getBoxObjectFor) {
d.startX = e.screenX;
d.startY = e.screenY;
d.scrollX = e.pageX - e.screenX;
d.scrollY = e.pageY - e.screenY;
} else {
d.startX = e.pageX;
d.startY = e.pageY;
}
d.boxes = [];
d.selected = [];
d.addEvt("mousemove", d.onMove, 1);
d.addEvt("mouseup", d.onUp, 1);
d.active = 0;
}
},
onMove: function(e) {
var d = CheckBoxMate;
if(!d.active && !e.nodeType) {
var delta = (e.pageX - d.startX)*(e.pageY - d.startY);
if(delta < -2 || delta > 2) {
d.active = 1;
} else return;
}
if(e.nodeType) {
var p = --d.pending;
if(p) {
setTimeout(d.onMove, 200, e);
} else {
if(d.active) d.calc();
}
if(d.active) d.update();
} else {
if(!d.pending) {
d.calc();
setTimeout(d.onMove, 200, e.target);
}
d.pending = 2;
if(d.doc.getBoxObjectFor) {
d.endX = e.screenX;
d.endY = e.screenY;
} else {
d.endX = e.pageX;
d.endY = e.pageY;
}
var rect = d.doc.getElementById("checkboxmate_24601");
if(!rect) {
rect = d.doc.documentElement.appendChild(d.doc.createElement("div"));
rect.id = "checkboxmate_24601";
rect.style.cssText = "outline:1px dotted #fff; border:1px dotted #000; position:absolute; padding:0px; margin:0px";
}
rect = rect.style;
rect.left = d.scrollX + ((d.startX < d.endX) ? d.startX : d.endX) - 7 + "px";
rect.top = d.scrollY + ((d.startY < d.endY) ? d.startY : d.endY) - 7 + "px";
rect.width = Math.abs(d.startX - d.endX) + 14 + "px";
rect.height = Math.abs(d.startY - d.endY) + 14 + "px";
}
},
onUp: function(e) {
var d = CheckBoxMate;
if(d.active) {
d.calc();
d.update();
}
d.clear();
},
clear: function() {
var d = CheckBoxMate;
d.active = 0;
d.delEvt("mousemove", d.onMove, 1);
d.delEvt("mouseup", d.onUp, 1);
var rect = d.doc.getElementById("checkboxmate_24601");
if(rect) rect.parentNode.removeChild(rect);
d.doc = 0;
d.boxes = [];
d.selected = [];
},
boxes: [],
selected: [],
update: function() {
var arr = this.boxes, y, y2, x, x2, sel = [], n;
y = this.endY > this.startY;
y2 = y ? this.endY : this.startY;
y = y ? this.startY : this.endY;
// Added scroll offset
y = y - window.pageYOffset;
y2 = y2 - window.pageYOffset;
x = this.endX > this.startX;
x2 = x ? this.endX : this.startX;
x = x ? this.startX : this.endX;
// Added side scroll offset
x = x - window.pageXOffset;
x2 = x2 - window.pageXOffset;
var i = this.binary(arr, {key: y});
while(i > 0 && arr[i - 1].y2 > y) --i;
while((n = arr[i++]) && y < n.y2 && y2 > n.y) {
if(x < n.x2 && x2 > n.x) {
sel.push(n.n);
n.n.cbm = 1;
}
}
arr = this.selected;
this.selected = sel;
for(i = arr.length - 1; i >= 0; i--) {
if(!arr[i].cbm) {
var e = this.doc.createEvent("MouseEvents");
e.initMouseEvent("click", 1, 1, this.doc.defaultView, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, null);
arr[i].dispatchEvent(e);
} else {
arr[i].cbm = 0;
}
}
for(i = sel.length - 1; i >= 0; i--) {
if(sel[i].cbm) {
sel[i].cbm = 0;
var e = this.doc.createEvent("MouseEvents");
e.initMouseEvent("click", 1, 1, this.doc.defaultView, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, null);
sel[i].dispatchEvent(e);
}
}
},
calc: function() {
var obj, d = this.doc,
elms = d.getElementsByTagName("input"),
arr = this.boxes = [],
gbof = d.getBoxObjectFor && 1;
for(var i=0, n; (n = elms[i]); i++) {
if(n.type == "checkbox" || n.type == "CHECKBOX") {
if(gbof) {
obj = d.getBoxObjectFor(n);
obj = {y:obj.screenY, y2:obj.height, x:obj.screenX, x2:obj.width, n:n, key:obj.screenY};
obj.y2 += obj.y;
obj.x2 += obj.x;
} else {
obj = n.getBoundingClientRect();
obj = {y:obj.top, y2:obj.bottom, x:obj.left, x2:obj.right, n:n, key:obj.top};
}
arr.splice(this.binary(arr, obj), 0, obj);
}
}
},
binary: function(arr, item, r1, r2) {
var i = item.key;
if(arr.length == 0) return 0;
if(!r2) {
r1 = 0;
r2 = arr.length;
if(i < arr[0].key) return 0;
if(i >= arr[r2 - 1].key) return r2;
}
switch(r2 - r1) {
case 3: return (i < arr[r1].key) ? r1 : (i > arr[r2 - 1].key) ? r2 : (i < arr[r1 + 1].key) ? r1 + 1 : r2 - 1;
case 2: return (i < arr[r1].key) ? r1 : (i > arr[r2 - 1].key) ? r2 : r2 - 1;
case 1: return (i < arr[r1].key) ? r1 : r2;
default:
var m = Math.round((r2 + r1)/2);
return this.binary(arr, item, (i < arr[m].key) ? r1 : m, (i < arr[m].key) ? m : r2);
}
}
};
addEventListener("load", function() {
CheckBoxMate.init();
addEventListener("unload", CheckBoxMate.uninit, false);
removeEventListener("load", arguments.callee, false);
}, false);
