GZ/nwyj/WebContent/admin/scripts/dojo/dojox/gfx/move.js

if (!dojo._hasResource["dojox.gfx.move"]) { // _hasResource checks added by
											// build. Do not use _hasResource
											// directly in your code.
	dojo._hasResource["dojox.gfx.move"] = true;
	dojo.provide("dojox.gfx.move");
	dojo.experimental("dojox.gfx.move");

	dojox.gfx.Mover = function(shape, e) {
		// summary: an object, which makes a shape follow the mouse,
		// used as a default mover, and as a base class for custom movers
		// shape: dojox.gfx.Shape: a shape object to be moved
		// e: Event: a mouse event, which started the move;
		// only clientX and clientY properties are used
		this.shape = shape;
		this.lastX = e.clientX
		this.lastY = e.clientY;
		var d = document, firstEvent = dojo.connect(d, "onmousemove", this,
				"onFirstMove");
		this.events = [dojo.connect(d, "onmousemove", this, "onMouseMove"),
				dojo.connect(d, "onmouseup", this, "destroy"),
				// cancel text selection and text dragging
				dojo.connect(d, "ondragstart", dojo, "stopEvent"),
				dojo.connect(d, "onselectstart", dojo, "stopEvent"), firstEvent];
		// set globals to indicate that move has started
		dojo.publish("/gfx/move/start", [this]);
		dojo.addClass(dojo.body(), "dojoMove");
	};

	dojo.extend(dojox.gfx.Mover, {
				// mouse event processors
				onMouseMove : function(e) {
					// summary: event processor for onmousemove
					// e: Event: mouse event
					var x = e.clientX;
					var y = e.clientY;
					this.shape.applyLeftTransform({
								dx : x - this.lastX,
								dy : y - this.lastY
							});
					this.lastX = x;
					this.lastY = y;
					dojo.stopEvent(e);
				},
				// utilities
				onFirstMove : function() {
					// summary: it is meant to be called only once
					dojo.disconnect(this.events.pop());
				},
				destroy : function() {
					// summary: stops the move, deletes all references, so the
					// object can be garbage-collected
					dojo.forEach(this.events, dojo.disconnect);
					// undo global settings
					dojo.publish("/gfx/move/stop", [this]);
					dojo.removeClass(dojo.body(), "dojoMove");
					// destroy objects
					this.events = this.shape = null;
				}
			});

	dojox.gfx.Moveable = function(shape, params) {
		// summary: an object, which makes a shape moveable
		// shape: dojox.gfx.Shape: a shape object to be moved
		// params: Object: an optional object with additional parameters;
		// following parameters are recognized:
		// delay: Number: delay move by this number of pixels
		// mover: Object: a constructor of custom Mover
		this.shape = shape;
		this.delay = (params && params.delay > 0) ? params.delay : 0;
		this.mover = (params && params.mover) ? params.mover : dojox.gfx.Mover;
		this.events = [this.shape.connect("onmousedown", this, "onMouseDown"),
		// cancel text selection and text dragging
		// dojo.connect(this.handle, "ondragstart", dojo, "stopEvent"),
		// dojo.connect(this.handle, "onselectstart", dojo, "stopEvent")
		];
	};

	dojo.extend(dojox.gfx.Moveable, {
				// methods
				destroy : function() {
					// summary: stops watching for possible move, deletes all
					// references, so the object can be garbage-collected
					dojo.forEach(this.events, "disconnect", this.shape);
					this.events = this.shape = null;
				},

				// mouse event processors
				onMouseDown : function(e) {
					// summary: event processor for onmousedown, creates a Mover
					// for the shape
					// e: Event: mouse event
					if (this.delay) {
						this.events.push(this.shape.connect("onmousemove",
								this, "onMouseMove"));
						this.events.push(this.shape.connect("onmouseup", this,
								"onMouseUp"));
						this._lastX = e.clientX;
						this._lastY = e.clientY;
					} else {
						new this.mover(this.shape, e);
					}
					dojo.stopEvent(e);
				},
				onMouseMove : function(e) {
					// summary: event processor for onmousemove, used only for
					// delayed drags
					// e: Event: mouse event
					if (Math.abs(e.clientX - this._lastX) > this.delay
							|| Math.abs(e.clientY - this._lastY) > this.delay) {
						this.onMouseUp(e);
						new this.mover(this.shape, e);
					}
					dojo.stopEvent(e);
				},
				onMouseUp : function(e) {
					// summary: event processor for onmouseup, used only for
					// delayed delayed drags
					// e: Event: mouse event
					this.shape.disconnect(this.events.pop());
					this.shape.disconnect(this.events.pop());
				}
			});

}