334 lines
9.3 KiB
JavaScript
334 lines
9.3 KiB
JavaScript
/*
|
|
[Discuz!] (C)2001-2099 Comsenz Inc.
|
|
This is NOT a freeware, use is subject to license terms
|
|
|
|
$Id: home_drag.js 32655 2013-02-28 04:08:00Z zhengqingpeng $
|
|
*/
|
|
|
|
var Drags = [];
|
|
var nDrags = 1;
|
|
|
|
var mouseOffset = null;
|
|
var iMouseDown = false;
|
|
var lMouseState = false;
|
|
var dragObject = null;
|
|
|
|
var DragDrops = [];
|
|
var curTarget = null;
|
|
var lastTarget = null;
|
|
var dragHelper = null;
|
|
var tempDiv = null;
|
|
var rootParent = null;
|
|
var rootSibling = null;
|
|
|
|
var D1Target = null;
|
|
|
|
Number.prototype.NaN0=function(){return isNaN(this)?0:this;};
|
|
|
|
function CreateDragContainer(){
|
|
var cDrag = DragDrops.length;
|
|
DragDrops[cDrag] = [];
|
|
|
|
for(var i=0; i<arguments.length; i++){
|
|
var cObj = arguments[i];
|
|
DragDrops[cDrag].push(cObj);
|
|
cObj.setAttribute('DropObj', cDrag);
|
|
|
|
for(var j=0; j<cObj.childNodes.length; j++){
|
|
|
|
if(cObj.childNodes[j].nodeName=='#text') continue;
|
|
|
|
cObj.childNodes[j].setAttribute('DragObj', cDrag);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
function getPosition(e){
|
|
var left = 0;
|
|
var top = 0;
|
|
while (e.offsetParent){
|
|
left += e.offsetLeft + (e.currentStyle?(parseInt(e.currentStyle.borderLeftWidth)).NaN0():0);
|
|
top += e.offsetTop + (e.currentStyle?(parseInt(e.currentStyle.borderTopWidth)).NaN0():0);
|
|
e = e.offsetParent;
|
|
}
|
|
|
|
|
|
left += e.offsetLeft + (e.currentStyle?(parseInt(e.currentStyle.borderLeftWidth)).NaN0():0);
|
|
top += e.offsetTop + (e.currentStyle?(parseInt(e.currentStyle.borderTopWidth)).NaN0():0);
|
|
|
|
return {x:left, y:top};
|
|
|
|
}
|
|
|
|
function mouseCoords(ev){
|
|
if(ev.pageX || ev.pageY){
|
|
return {x:ev.pageX, y:ev.pageY};
|
|
}
|
|
return {
|
|
x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,
|
|
y:ev.clientY + document.body.scrollTop - document.body.clientTop
|
|
};
|
|
}
|
|
|
|
function writeHistory(object, message){
|
|
if(!object || !object.parentNode || typeof object.parentNode.getAttribute == 'unknown' || !object.parentNode.getAttribute) return;
|
|
var historyDiv = object.parentNode.getAttribute('history');
|
|
if(historyDiv){
|
|
historyDiv = document.getElementById(historyDiv);
|
|
historyDiv.appendChild(document.createTextNode(object.id+': '+message));
|
|
historyDiv.appendChild(document.createElement('BR'));
|
|
|
|
historyDiv.scrollTop += 50;
|
|
}
|
|
}
|
|
|
|
function getMouseOffset(target, ev){
|
|
ev = ev || window.event;
|
|
|
|
var docPos = getPosition(target);
|
|
var mousePos = mouseCoords(ev);
|
|
return {x:mousePos.x - docPos.x, y:mousePos.y - docPos.y};
|
|
}
|
|
|
|
function mouseMove(ev){
|
|
ev = ev || window.event;
|
|
|
|
var target = ev.target || ev.srcElement;
|
|
var mousePos = mouseCoords(ev);
|
|
if(Drags[0]){
|
|
if(lastTarget && (target!==lastTarget)){
|
|
writeHistory(lastTarget, 'Mouse Out Fired');
|
|
var origClass = lastTarget.getAttribute('origClass');
|
|
if(origClass) lastTarget.className = origClass;
|
|
}
|
|
|
|
var dragObj = target.getAttribute('DragObj');
|
|
|
|
if(dragObj!=null){
|
|
|
|
if(target!=lastTarget){
|
|
writeHistory(target, 'Mouse Over Fired');
|
|
|
|
var oClass = target.getAttribute('overClass');
|
|
if(oClass){
|
|
target.setAttribute('origClass', target.className);
|
|
target.className = oClass;
|
|
}
|
|
}
|
|
|
|
|
|
if(iMouseDown && !lMouseState){
|
|
writeHistory(target, 'Start Dragging');
|
|
|
|
curTarget = target;
|
|
|
|
rootParent = curTarget.parentNode;
|
|
rootSibling = curTarget.nextSibling;
|
|
mouseOffset = getMouseOffset(target, ev);
|
|
for(var i=0; i<dragHelper.childNodes.length; i++) dragHelper.removeChild(dragHelper.childNodes[i]);
|
|
|
|
dragHelper.appendChild(curTarget.cloneNode(true));
|
|
dragHelper.style.display = 'block';
|
|
|
|
var dragClass = curTarget.getAttribute('dragClass');
|
|
if(dragClass){
|
|
dragHelper.firstChild.className = dragClass;
|
|
}
|
|
|
|
dragHelper.firstChild.removeAttribute('DragObj');
|
|
|
|
var dragConts = DragDrops[dragObj];
|
|
|
|
|
|
curTarget.setAttribute('startWidth', parseInt(curTarget.offsetWidth));
|
|
curTarget.setAttribute('startHeight', parseInt(curTarget.offsetHeight));
|
|
curTarget.style.display = 'none';
|
|
|
|
for(var i=0; i<dragConts.length; i++){
|
|
with(dragConts[i]){
|
|
var pos = getPosition(dragConts[i]);
|
|
|
|
setAttribute('startWidth', parseInt(offsetWidth));
|
|
setAttribute('startHeight', parseInt(offsetHeight));
|
|
setAttribute('startLeft', pos.x);
|
|
setAttribute('startTop', pos.y);
|
|
}
|
|
|
|
for(var j=0; j<dragConts[i].childNodes.length; j++){
|
|
with(dragConts[i].childNodes[j]){
|
|
if((nodeName=='#text') || (dragConts[i].childNodes[j]==curTarget)) continue;
|
|
|
|
var pos = getPosition(dragConts[i].childNodes[j]);
|
|
|
|
setAttribute('startWidth', parseInt(offsetWidth));
|
|
setAttribute('startHeight', parseInt(offsetHeight));
|
|
setAttribute('startLeft', pos.x);
|
|
setAttribute('startTop', pos.y);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if(curTarget){
|
|
dragHelper.style.top = (mousePos.y - mouseOffset.y)+"px";
|
|
dragHelper.style.left = (mousePos.x - mouseOffset.x)+"px";
|
|
var dragConts = DragDrops[curTarget.getAttribute('DragObj')];
|
|
var activeCont = null;
|
|
|
|
var xPos = mousePos.x - mouseOffset.x + (parseInt(curTarget.getAttribute('startWidth')) /2);
|
|
var yPos = mousePos.y - mouseOffset.y + (parseInt(curTarget.getAttribute('startHeight'))/2);
|
|
|
|
for(var i=0; i<dragConts.length; i++){
|
|
with(dragConts[i]){
|
|
if((parseInt(getAttribute('startLeft')) < xPos) &&
|
|
(parseInt(getAttribute('startTop')) < yPos) &&
|
|
((parseInt(getAttribute('startLeft')) + parseInt(getAttribute('startWidth'))) > xPos) &&
|
|
((parseInt(getAttribute('startTop')) + parseInt(getAttribute('startHeight'))) > yPos)){
|
|
|
|
activeCont = dragConts[i];
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(activeCont){
|
|
if(activeCont!=curTarget.parentNode){
|
|
writeHistory(curTarget, 'Moved into '+activeCont.id);
|
|
}
|
|
|
|
var beforeNode = null;
|
|
|
|
for(var i=activeCont.childNodes.length-1; i>=0; i--){
|
|
with(activeCont.childNodes[i]){
|
|
if(nodeName=='#text') continue;
|
|
|
|
if(curTarget != activeCont.childNodes[i] &&
|
|
((parseInt(getAttribute('startLeft')) + parseInt(getAttribute('startWidth'))) > xPos) &&
|
|
((parseInt(getAttribute('startTop')) + parseInt(getAttribute('startHeight'))) > yPos)){
|
|
beforeNode = activeCont.childNodes[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
if(beforeNode){
|
|
if(beforeNode!=curTarget.nextSibling){
|
|
writeHistory(curTarget, 'Inserted Before '+beforeNode.id);
|
|
|
|
activeCont.insertBefore(curTarget, beforeNode);
|
|
}
|
|
|
|
} else {
|
|
if((curTarget.nextSibling) || (curTarget.parentNode!=activeCont)){
|
|
writeHistory(curTarget, 'Inserted at end of '+activeCont.id);
|
|
|
|
activeCont.appendChild(curTarget);
|
|
}
|
|
}
|
|
|
|
setTimeout(function(){
|
|
var contPos = getPosition(activeCont);
|
|
activeCont.setAttribute('startWidth', parseInt(activeCont.offsetWidth));
|
|
activeCont.setAttribute('startHeight', parseInt(activeCont.offsetHeight));
|
|
activeCont.setAttribute('startLeft', contPos.x);
|
|
activeCont.setAttribute('startTop', contPos.y);}, 5);
|
|
|
|
if(curTarget.style.display!=''){
|
|
writeHistory(curTarget, 'Made Visible');
|
|
curTarget.style.display = '';
|
|
curTarget.style.visibility = 'hidden';
|
|
}
|
|
} else {
|
|
|
|
if(curTarget.style.display!='none'){
|
|
writeHistory(curTarget, 'Hidden');
|
|
curTarget.style.display = 'none';
|
|
}
|
|
}
|
|
}
|
|
|
|
lMouseState = iMouseDown;
|
|
|
|
lastTarget = target;
|
|
}
|
|
|
|
if(dragObject){
|
|
dragObject.style.position = 'absolute';
|
|
dragObject.style.top = mousePos.y - mouseOffset.y;
|
|
dragObject.style.left = mousePos.x - mouseOffset.x;
|
|
}
|
|
|
|
lMouseState = iMouseDown;
|
|
|
|
if(curTarget || dragObject) return false;
|
|
}
|
|
|
|
function mouseUp(ev){
|
|
if(Drags[0]){
|
|
if(curTarget){
|
|
writeHistory(curTarget, 'Mouse Up Fired');
|
|
|
|
dragHelper.style.display = 'none';
|
|
if(curTarget.style.display == 'none'){
|
|
if(rootSibling){
|
|
rootParent.insertBefore(curTarget, rootSibling);
|
|
} else {
|
|
rootParent.appendChild(curTarget);
|
|
}
|
|
}
|
|
curTarget.style.display = '';
|
|
curTarget.style.visibility = 'visible';
|
|
}
|
|
curTarget = null;
|
|
}
|
|
|
|
dragObject = null;
|
|
iMouseDown = false;
|
|
}
|
|
|
|
function mouseDown(ev){
|
|
mousedown(ev);
|
|
ev = ev || window.event;
|
|
var target = ev.target || ev.srcElement;
|
|
iMouseDown = true;
|
|
if(Drags[0]){
|
|
if(lastTarget){
|
|
writeHistory(lastTarget, 'Mouse Down Fired');
|
|
}
|
|
}
|
|
if(target.onmousedown || target.getAttribute('DragObj')){
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function makeDraggable(item){
|
|
if(!item) return;
|
|
item.onmousedown = function(ev){
|
|
dragObject = this;
|
|
mouseOffset = getMouseOffset(this, ev);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function init_drag2(){
|
|
|
|
document.onmousemove = mouseMove;
|
|
document.onmousedown = mouseDown;
|
|
document.onmouseup = mouseUp;
|
|
|
|
Drags[0] = $('Drags0');
|
|
if(Drags[0]){
|
|
CreateDragContainer($('DragContainer0'));
|
|
}
|
|
if(Drags[0]){
|
|
var cObj = $('applistcontent');
|
|
dragHelper = document.createElement('div');
|
|
dragHelper.style.cssName = "apps dragable";
|
|
dragHelper.style.cssText = 'position:absolute;display:none;width:777px;';
|
|
cObj.parentNode.insertBefore(dragHelper, cObj);
|
|
}
|
|
}
|
|
function mousedown(evnt){
|
|
} |