in plugins/struts2-dojo-plugin/src/main/resources/org/apache/struts2/static/dojo/src/dnd/HtmlDragManager.js [19:283]
dojo.declare("dojo.dnd.HtmlDragManager", dojo.dnd.DragManager, {disabled:false, nestedTargets:false, mouseDownTimer:null, dsCounter:0, dsPrefix:"dojoDragSource", dropTargetDimensions:[], currentDropTarget:null, previousDropTarget:null, _dragTriggered:false, selectedSources:[], dragObjects:[], dragSources:[], dropTargets:[], currentX:null, currentY:null, lastX:null, lastY:null, mouseDownX:null, mouseDownY:null, threshold:7, dropAcceptable:false, cancelEvent:function (e) {
e.stopPropagation();
e.preventDefault();
}, registerDragSource:function (ds) {
if (ds["domNode"]) {
var dp = this.dsPrefix;
var dpIdx = dp + "Idx_" + (this.dsCounter++);
ds.dragSourceId = dpIdx;
this.dragSources[dpIdx] = ds;
ds.domNode.setAttribute(dp, dpIdx);
if (dojo.render.html.ie) {
dojo.event.browser.addListener(ds.domNode, "ondragstart", this.cancelEvent);
}
}
}, unregisterDragSource:function (ds) {
if (ds["domNode"]) {
var dp = this.dsPrefix;
var dpIdx = ds.dragSourceId;
delete ds.dragSourceId;
delete this.dragSources[dpIdx];
ds.domNode.setAttribute(dp, null);
if (dojo.render.html.ie) {
dojo.event.browser.removeListener(ds.domNode, "ondragstart", this.cancelEvent);
}
}
}, registerDropTarget:function (dt) {
this.dropTargets.push(dt);
}, unregisterDropTarget:function (dt) {
var index = dojo.lang.find(this.dropTargets, dt, true);
if (index >= 0) {
this.dropTargets.splice(index, 1);
}
}, getDragSource:function (e) {
var tn = e.target;
if (tn === dojo.body()) {
return;
}
var ta = dojo.html.getAttribute(tn, this.dsPrefix);
while ((!ta) && (tn)) {
tn = tn.parentNode;
if ((!tn) || (tn === dojo.body())) {
return;
}
ta = dojo.html.getAttribute(tn, this.dsPrefix);
}
return this.dragSources[ta];
}, onKeyDown:function (e) {
}, onMouseDown:function (e) {
if (this.disabled) {
return;
}
if (dojo.render.html.ie) {
if (e.button != 1) {
return;
}
} else {
if (e.which != 1) {
return;
}
}
var target = e.target.nodeType == dojo.html.TEXT_NODE ? e.target.parentNode : e.target;
if (dojo.html.isTag(target, "button", "textarea", "input", "select", "option")) {
return;
}
var ds = this.getDragSource(e);
if (!ds) {
return;
}
if (!dojo.lang.inArray(this.selectedSources, ds)) {
this.selectedSources.push(ds);
ds.onSelected();
}
this.mouseDownX = e.pageX;
this.mouseDownY = e.pageY;
e.preventDefault();
dojo.event.connect(document, "onmousemove", this, "onMouseMove");
}, onMouseUp:function (e, cancel) {
if (this.selectedSources.length == 0) {
return;
}
this.mouseDownX = null;
this.mouseDownY = null;
this._dragTriggered = false;
e.dragSource = this.dragSource;
if ((!e.shiftKey) && (!e.ctrlKey)) {
if (this.currentDropTarget) {
this.currentDropTarget.onDropStart();
}
dojo.lang.forEach(this.dragObjects, function (tempDragObj) {
var ret = null;
if (!tempDragObj) {
return;
}
if (this.currentDropTarget) {
e.dragObject = tempDragObj;
var ce = this.currentDropTarget.domNode.childNodes;
if (ce.length > 0) {
e.dropTarget = ce[0];
while (e.dropTarget == tempDragObj.domNode) {
e.dropTarget = e.dropTarget.nextSibling;
}
} else {
e.dropTarget = this.currentDropTarget.domNode;
}
if (this.dropAcceptable) {
ret = this.currentDropTarget.onDrop(e);
} else {
this.currentDropTarget.onDragOut(e);
}
}
e.dragStatus = this.dropAcceptable && ret ? "dropSuccess" : "dropFailure";
dojo.lang.delayThese([function () {
try {
tempDragObj.dragSource.onDragEnd(e);
}
catch (err) {
var ecopy = {};
for (var i in e) {
if (i == "type") {
ecopy.type = "mouseup";
continue;
}
ecopy[i] = e[i];
}
tempDragObj.dragSource.onDragEnd(ecopy);
}
}, function () {
tempDragObj.onDragEnd(e);
}]);
}, this);
this.selectedSources = [];
this.dragObjects = [];
this.dragSource = null;
if (this.currentDropTarget) {
this.currentDropTarget.onDropEnd();
}
} else {
}
dojo.event.disconnect(document, "onmousemove", this, "onMouseMove");
this.currentDropTarget = null;
}, onScroll:function () {
for (var i = 0; i < this.dragObjects.length; i++) {
if (this.dragObjects[i].updateDragOffset) {
this.dragObjects[i].updateDragOffset();
}
}
if (this.dragObjects.length) {
this.cacheTargetLocations();
}
}, _dragStartDistance:function (x, y) {
if ((!this.mouseDownX) || (!this.mouseDownX)) {
return;
}
var dx = Math.abs(x - this.mouseDownX);
var dx2 = dx * dx;
var dy = Math.abs(y - this.mouseDownY);
var dy2 = dy * dy;
return parseInt(Math.sqrt(dx2 + dy2), 10);
}, cacheTargetLocations:function () {
dojo.profile.start("cacheTargetLocations");
this.dropTargetDimensions = [];
dojo.lang.forEach(this.dropTargets, function (tempTarget) {
var tn = tempTarget.domNode;
if (!tn || !tempTarget.accepts([this.dragSource])) {
return;
}
var abs = dojo.html.getAbsolutePosition(tn, true);
var bb = dojo.html.getBorderBox(tn);
this.dropTargetDimensions.push([[abs.x, abs.y], [abs.x + bb.width, abs.y + bb.height], tempTarget]);
}, this);
dojo.profile.end("cacheTargetLocations");
}, onMouseMove:function (e) {
if ((dojo.render.html.ie) && (e.button != 1)) {
this.currentDropTarget = null;
this.onMouseUp(e, true);
return;
}
if ((this.selectedSources.length) && (!this.dragObjects.length)) {
var dx;
var dy;
if (!this._dragTriggered) {
this._dragTriggered = (this._dragStartDistance(e.pageX, e.pageY) > this.threshold);
if (!this._dragTriggered) {
return;
}
dx = e.pageX - this.mouseDownX;
dy = e.pageY - this.mouseDownY;
}
this.dragSource = this.selectedSources[0];
dojo.lang.forEach(this.selectedSources, function (tempSource) {
if (!tempSource) {
return;
}
var tdo = tempSource.onDragStart(e);
if (tdo) {
tdo.onDragStart(e);
tdo.dragOffset.y += dy;
tdo.dragOffset.x += dx;
tdo.dragSource = tempSource;
this.dragObjects.push(tdo);
}
}, this);
this.previousDropTarget = null;
this.cacheTargetLocations();
}
dojo.lang.forEach(this.dragObjects, function (dragObj) {
if (dragObj) {
dragObj.onDragMove(e);
}
});
if (this.currentDropTarget) {
var c = dojo.html.toCoordinateObject(this.currentDropTarget.domNode, true);
var dtp = [[c.x, c.y], [c.x + c.width, c.y + c.height]];
}
if ((!this.nestedTargets) && (dtp) && (this.isInsideBox(e, dtp))) {
if (this.dropAcceptable) {
this.currentDropTarget.onDragMove(e, this.dragObjects);
}
} else {
var bestBox = this.findBestTarget(e);
if (bestBox.target === null) {
if (this.currentDropTarget) {
this.currentDropTarget.onDragOut(e);
this.previousDropTarget = this.currentDropTarget;
this.currentDropTarget = null;
}
this.dropAcceptable = false;
return;
}
if (this.currentDropTarget !== bestBox.target) {
if (this.currentDropTarget) {
this.previousDropTarget = this.currentDropTarget;
this.currentDropTarget.onDragOut(e);
}
this.currentDropTarget = bestBox.target;
e.dragObjects = this.dragObjects;
this.dropAcceptable = this.currentDropTarget.onDragOver(e);
} else {
if (this.dropAcceptable) {
this.currentDropTarget.onDragMove(e, this.dragObjects);
}
}
}
}, findBestTarget:function (e) {
var _this = this;
var bestBox = new Object();
bestBox.target = null;
bestBox.points = null;
dojo.lang.every(this.dropTargetDimensions, function (tmpDA) {
if (!_this.isInsideBox(e, tmpDA)) {
return true;
}
bestBox.target = tmpDA[2];
bestBox.points = tmpDA;
return Boolean(_this.nestedTargets);
});
return bestBox;
}, isInsideBox:function (e, coords) {
if ((e.pageX > coords[0][0]) && (e.pageX < coords[1][0]) && (e.pageY > coords[0][1]) && (e.pageY < coords[1][1])) {
return true;
}
return false;
}, onMouseOver:function (e) {
}, onMouseOut:function (e) {
}});