From e44a7e37b6c7b5961adaffc62b9042b8d442938e Mon Sep 17 00:00:00 2001
From: mensonge
Date: Thu, 13 Nov 2008 09:49:11 +0000
Subject: New feature: basic Ajax suggestion for tags and implementation of
 Dojo toolkit

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
---
 includes/js/dojox/layout/DragPane.js | 65 ++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 includes/js/dojox/layout/DragPane.js

(limited to 'includes/js/dojox/layout/DragPane.js')

diff --git a/includes/js/dojox/layout/DragPane.js b/includes/js/dojox/layout/DragPane.js
new file mode 100644
index 0000000..4dec5e4
--- /dev/null
+++ b/includes/js/dojox/layout/DragPane.js
@@ -0,0 +1,65 @@
+if(!dojo._hasResource["dojox.layout.DragPane"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojox.layout.DragPane"] = true;
+dojo.provide("dojox.layout.DragPane");
+
+dojo.require("dijit._Widget");
+
+dojo.declare("dojox.layout.DragPane",
+	dijit._Widget, {
+	//
+	// summary: Makes a pane's content dragable by/within it's surface
+	//
+	// description:
+	//		A small widget which takes a node with overflow:auto and
+	//		allows dragging to position the content. Useful with images,
+	//		or for just adding "something" to a overflow-able div.
+	//
+	// invert: Boolean
+	//		Naturally, the behavior is to invert the axis of the drag.
+	//		Setting invert:false will make the pane drag in the same
+	//		direction as the mouse.
+	invert:true,
+	
+	postCreate: function(){
+
+		this.inherited(arguments);
+		this.connect(this.domNode,"onmousedown","_down");
+		this.connect(this.domNode,"onmouseup","_up");
+	},
+	
+	_down: function(e){
+		// summary: mousedown handler, start the dragging
+		var t = this.domNode;
+		dojo.style(t,"cursor","move");
+		this._x = e.pageX;
+		this._y = e.pageY;
+		if ((this._x < t.offsetLeft + t.clientWidth) &&
+			(this._y < t.offsetTop + t.clientHeight)) {
+			dojo.setSelectable(t,false);
+			this._mover = dojo.connect(t,"onmousemove",this,"_move");		
+		}
+	},
+	
+	_up: function(e){
+		// summary: mouseup handler, stop the dragging
+		
+		dojo.setSelectable(this.domNode,true);
+		dojo.style(this.domNode,"cursor","pointer");
+		dojo.disconnect(this._mover);
+	},
+	
+	_move: function(e){
+		// summary: mousemove listener, offset the scroll amount by the delta
+		//		since our last call.
+		
+		var mod = this.invert ? 1 : -1;
+		this.domNode.scrollTop += (this._y - e.pageY) * mod;
+		this.domNode.scrollLeft += (this._x - e.pageX) * mod;
+		this._x = e.pageX;
+		this._y = e.pageY;
+		
+	}
+	
+});
+
+}
-- 
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