Solved

Moo Crop JS in dot net page keeps breaking

Posted on 2009-04-04
10
712 Views
Last Modified: 2012-06-21
Im trying to us MooCrop (http://www.nwhite.net/MooCrop/ ) and cant get the script to run in my aspx page.  Can some show me what Im doing wrong. I get not response when I run the code or it breaks. Pasted code below.

Thanks!

I have the Moo Crop JS files in the same directory as this aspx page.
mootools.js
MooCrop.js


<%@ Page Language="C#" AutoEventWireup="true" CodeFile="placeOrder.aspx.cs" Inherits="site_PlaceOrder" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Crop Image Page</title>
    
 <script type="text/javascript" src="mootools-1.2.1-core-yc.js"></script>
 <script type="text/javascript" src="MooCrop.js">
             
     window.addEvent('load',function(){
       var crop new MooCrop('crop_example1'); 
        });   
 
 </script>
 
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
        Image For Cropping.<br />
        
        <img src="crop_example1.jpg" id="crop_example1"/>
        
     </div>
    </form>
</body>
</html>

Open in new window

0
Comment
Question by:bmanmike39
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 5
10 Comments
 
LVL 5

Expert Comment

by:Pantalaim0n
ID: 24068841
I'm not sure, but I think you can't put inline JavaScript within a <script> tag that also has a src attribute.

Maybe try:

<script type="text/javascript" src="mootools-1.2.1-core-yc.js"></script>
<script type="text/javascript" src="MooCrop.js"></script>
<script type="text/javascript">
    window.addEvent('load',function(){
       var crop new MooCrop('crop_example1'); 
    });   
</script>

Open in new window

0
 

Author Comment

by:bmanmike39
ID: 24068909
Tried and i get a runtime error.
0
 
LVL 5

Expert Comment

by:Pantalaim0n
ID: 24068919
Can you give some details on the runtime error you got?
0
Revamp Your Training Process

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action.

 
LVL 5

Expert Comment

by:Pantalaim0n
ID: 24068932
Ah, just noticed your call to the MooCrop function is faulty. Forgot the = sign:

var crop = new MooCrop('crop_example1'); 

Open in new window

0
 

Author Comment

by:bmanmike39
ID: 24068935
a runtime error occurred  do you wish to debug  line 13  error: Expected";"

0
 

Author Comment

by:bmanmike39
ID: 24068961
I added the "=" now it gives the error "Microsoft JScript runtime error: Object doesn't support this property or method"

this is line 32 of MooCrop.JS

Line is highlighted "if ( this.img.getTag() != )  return fasle
0
 

Author Comment

by:bmanmike39
ID: 24068974
This is the mooCrop.js file
/***
 * MooCrop (v. rc-1 - 2007-10-24 )
 *
 * @version			rc-1
 * @license			BSD-style license
 * @author			nwhite - < nw [at] nwhite.net >
 * @infos			http://www.nwhite.net/MooCrop/
 * @copyright		Author
 * 
 
 */
var MooCrop = new Class({
 
	calculateHandles : true,
	current : {},
 
	options : {
		maskColor : 'black',
		maskOpacity : '.4',
		handleColor : 'blue',
		handleWidth : '8px',
		handleHeight : '8px',
		cropBorder : '1px dashed blue',
		min : { 'width' : 50, 'height' : 50 },
		showMask : true, // false to remove, helps on slow machines
		showHandles : false // hide handles on drag
	},
 
	initialize: function(el, options){
		this.setOptions(options);
		this.img = $(el);
		if ( this.img.getTag() != 'img') return false;
		
		this.resizeFunc = this.refresh.bindWithEvent(this);
		this.removeFunc = this.removeListener.bind(this);
 
		this.buildOverlay();
		this.setup();
	},
 
	setup: function(){
		
		$(this.cropArea).setStyles({
			'width': this.options.min.width, 
			'height': this.options.min.height,
			'top' : (this.img.height - this.options.min.height)/2,
			'left': (this.img.width - this.options.min.width) / 2 
		});
		
		this.current.crop = this.crop = this.getCropArea();
		
		this.handleWidthOffset = this.options.handleWidth.toInt() / 2;
		this.handleHeightOffset = this.options.handleHeight.toInt() /2;
		
		this.fixBoxModel();
		this.drawMasks();
		this.positionHandles();
	},
 
	getCropArea : function(){
		var crop = this.cropArea.getCoordinates();
		crop.left -= this.offsets.x; crop.right -= this.offsets.x; // calculate relative (horizontal)
		crop.top -= this.offsets.y; crop.bottom  -= this.offsets.y; // calculate relative (vertical)
		return crop;
	},
 
	fixBoxModel : function(){
		var diff = this.boxDiff = (this.crop.width - this.options.min.width)/2;
 
		var b = this.bounds = { 'top' : diff, 'left' : diff, 
			'right' : this.img.width+(diff*2), 'bottom' : this.img.height+(diff*2),
			'width' : this.options.min.width+(diff*2), 'height' : this.options.min.height+(diff*2) };
		
		this.wrapper.setStyles({
			'width' : b.right, 'height' : b.bottom,
			'background' : 'url('+this.img.src+') no-repeat '+diff+'px '+diff+'px'
		});
		this.north.setStyle('width',b.right);
		this.south.setStyle('width',b.right);
	},
 
	activate : function(event,handle){
		event.stop();
		this.current = { 'x' : event.page.x, 'y' : event.page.y, 'handle' : handle, 'crop' : this.current.crop };
		if(this.current.handle == 'NESW' && !this.options.showHandles) this.hideHandles();
		this.fireEvent('onBegin',[this.img.src,this.getCropInfo(),this.bounds,handle]);
		document.addListener('mousemove', this.resizeFunc);
		document.addListener('mouseup', this.removeFunc);
	},
 
	removeListener : function(){
		if( this.current.handle == 'NESW' && !this.options.showHandles) this.showHandles();
		document.removeListener('mousemove', this.resizeFunc);
		document.removeListener('mouseup', this.removeFunc);
		this.crop = this.current.crop;
		this.fireEvent('onComplete',[this.img.src,this.getCropInfo(),this.bounds,this.current.handle]);
	},
 
	refresh : function(event){
		var xdiff = this.current.x - event.page.x;
		var ydiff = this.current.y - event.page.y;
 
		var b = this.bounds;  var c = this.crop;  var handle = this.current.handle; var styles = {}; //saving bytes
		var dragging = (handle.length > 2) ? true : false;
		
		if( handle.contains("S") ){//SOUTH
			if(c.bottom - ydiff > b.bottom ) ydiff = c.bottom - b.bottom; // box south
			if(!dragging){
				if( (c.height - ydiff) < b.height ) ydiff = c.height - b.height; // size south
				styles['height'] = c.height - ydiff; // South handles only
			}
		}
		if( handle.contains("N") ){//NORTH
			if(c.top - ydiff < b.top ) ydiff = c.top; //box north
			if(!dragging){
				if( (c.height + ydiff ) < b.height ) ydiff = b.height - c.height; // size north
				styles['height'] = c.height + ydiff; // North handles only
			}
			styles['top'] = c.top - ydiff; // both Drag and N handles
		}
		if( handle.contains("E") ){//EAST
			if(c.right - xdiff > b.right) xdiff = c.right - b.right; //box east
			if(!dragging){
				if( (c.width - xdiff) < b.width ) xdiff = c.width - b.width; // size east
				styles['width'] = c.width - xdiff;
			}
		}
		if( handle.contains("W") ){//WEST
			if(c.left - xdiff < b.left) xdiff = c.left; //box west
			if(!dragging){
				if( (c.width + xdiff) < b.width ) xdiff = b.width - c.width; //size west
				styles['width'] = c.width + xdiff;
			}
			styles['left'] = c.left - xdiff; // both Drag and W handles
		}
		var preCssStyles = $merge(styles);
		if( $defined(styles.width)) styles.width -= this.boxDiff*2;
		if( $defined(styles.height)) styles.height -= this.boxDiff*2;
 
		this.cropArea.setStyles(styles);
		this.getCurrentCoords(preCssStyles);
		this.drawMasks();
		this.positionHandles();
		this.fireEvent('onCrop',[this.img.src,this.getCropInfo(),b,handle]);
	},
 
	getCurrentCoords : function(changed){
		var current = $merge(this.crop);
		
		if($defined(changed.left)){
			current.left = changed.left;
			if($defined(changed.width)) current.width = changed.width;
			else current.right = current.left + current.width;
		}
		if($defined(changed.top)){
			current.top = changed.top;
			if($defined(changed.height)) current.height = changed.height;
			else current.bottom = current.top + current.height;
		}
		if($defined(changed.width) && !$defined(changed.left)){
			current.width = changed.width; current.right = current.left + current.width;
		}
		if($defined(changed.height) && !$defined(changed.top)){
			current.height = changed.height; current.bottom = current.top + current.height;
		}
		this.current.crop = current;
	},
 
	drawMasks : function(){
		if(!this.options.showMask) return;
		var b = this.bounds;  var c = this.current.crop; var handle = this.current.handle;
		this.north.setStyle('height', c.top + 'px' );
		this.south.setStyle('height', b.bottom  - c.bottom  + 'px');
		this.east.setStyles({ height: c.height + 'px', width: b.right  - c.right + 'px',  top: c.top  + 'px', left: c.right + 'px'});
		this.west.setStyles({ height: c.height + 'px', width: c.left + 'px', top: c.top + 'px'});
	},
 
	positionHandles: function(){
		if(!this.calculateHandles) return;
		var c = this.current.crop; var wOffset = this.handleWidthOffset; var hOffset = this.handleHeightOffset;
 
		this.handles.get('N').setStyles({'left' : c.width / 2 - wOffset + 'px', 'top' : - hOffset + 'px'});
		this.handles.get('NE').setStyles({'left' : c.width - wOffset + 'px', 'top' : - hOffset + 'px'});
		this.handles.get('E').setStyles({ 'left' : c.width - wOffset + 'px', 'top' : c.height / 2 - hOffset + 'px'});
		this.handles.get('SE').setStyles({'left' : c.width - wOffset + 'px', 'top' : c.height - hOffset + 'px'});
		this.handles.get('S').setStyles({'left' : c.width / 2 - wOffset + 'px', 'top' : c.height - hOffset + 'px'});
		this.handles.get('SW').setStyles({'left' : - wOffset + 'px', 'top' : c.height - hOffset + 'px'});
		this.handles.get('W').setStyles({'left' : - wOffset + 'px', 'top' : c.height / 2 - hOffset + 'px'});
		this.handles.get('NW').setStyles({'left' : - wOffset + 'px', 'top' : - hOffset + 'px'});
	},
 
	hideHandles: function(){
		this.calculateHandles = false;
		this.handles.each(function(handle){
			handle.setStyle('display','none');
		});
	},
 
	showHandles: function(){
		this.calculateHandles = true;
		this.positionHandles();
		this.handles.each(function(handle){
			handle.setStyle('display','block');
		});
	},
 
	buildOverlay: function(){
		var o = this.options;
 
		this.wrapper = new Element("div", {
			'styles' : {'position' : 'relative', 'width' : this.img.width, 'height' : this.img.height, 'background' : 'url('+this.img.src+') no-repeat' , 'float' : this.img.getStyle('float')  }
		}).injectBefore(this.img);
 
		this.img.setStyle('display','none');
 
		this.offsets = { x : this.wrapper.getLeft(), y : this.wrapper.getTop() };
 
		if(this.options.showMask){		// optional masks
			var maskStyles = { 'position' : 'absolute', 'overflow' : 'hidden', 'background-color' : o.maskColor, 'opacity' : o.maskOpacity};
			this.north = new Element("div", {'styles' : maskStyles}).injectInside(this.wrapper);
			this.south = new Element("div", {'styles' : $merge(maskStyles,{'bottom':'0px'})}).injectInside(this.wrapper);
			this.east =  new Element("div", {'styles' : maskStyles}).injectInside(this.wrapper);
			this.west =  new Element("div", {'styles' : maskStyles}).injectInside(this.wrapper);
		}
 
		this.cropArea = new Element("div", { 'styles' : { 'position' : 'absolute', 'top' : '0px', 'left' : '0px', 'border' : o.cropBorder, 'cursor' : 'move' },
		'events' : {
			'dblclick' : function(){ this.fireEvent('onDblClk',[this.img.src,this.getCropInfo(),this.bounds])}.bind(this),
			'mousedown' : this.activate.bindWithEvent(this,'NESW')}
		}).injectInside(this.wrapper);
 
		this.handles = new Hash();
		['N','NE','E','SE','S','SW','W','NW'].each(function(handle){
			this.handles.set(handle, new Element("div", {
			'styles' : { 'position' : 'absolute', 'background-color' : o.handleColor, 
						 'width' : o.handleWidth, 'height' : o.handleHeight, 'overflow' : 'hidden', 'cursor' : (handle.toLowerCase()+'-resize')},
			'events' : {'mousedown' : this.activate.bindWithEvent(this,handle)}
			}).injectInside(this.cropArea));
		},this);
 
	},
 
	getCropInfo : function(){
		var c = $merge(this.current.crop);
		c.width -= this.boxDiff*2; c.height -= this.boxDiff*2;
		return c;
	},
 
	removeOverlay: function(){
		this.wrapper.remove();
		this.img.setStyle('display','block');
	}
 
});
MooCrop.implement(new Events, new Options);

Open in new window

0
 
LVL 5

Expert Comment

by:Pantalaim0n
ID: 24068996
Hmm, never heard of a method named getTag(), could be a mootools element extension...
you could try changing this.img.getTag() to this.img.tagName.toLowerCase()
All it does is checking if it's an image tag or not..
0
 

Author Comment

by:bmanmike39
ID: 24069041
That helped a some, but now when i try to resize the box by pulling on the handles, it breaks

MS runtime error:' Page.x' is null or not an object

Line 100 of MooCrop.js
0
 
LVL 5

Accepted Solution

by:
Pantalaim0n earned 500 total points
ID: 24069399
Starting to wonder if your mootools framework is complete and/or up to date
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article will give core knowledge of JavaScript and will head in to your first JavaScript program. I am Durvesh Naik and I am here to deal with this series of JavaScript. I will teach you JavaScript in part wise , as its quite boring to read big…
Having worked on larger scale sites, we found out that you are bound to look at more scalable solutions to integrating widgets, code snippets or complete applications and mesh them into functional sites, in any given composition. To share some of…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

724 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question