// Simple Set Clipboard System
// Author: Joseph Huckaby

var ZeroClipboard = {

version: "1.0.4",
	 clients: {}, // registered upload clients on page, indexed by id
	 moviePath: '/js/ZeroClipboard.swf', // URL to movie
	 nextId: 1, // ID of next movie

	 $: function(thingy) {
	   // simple DOM lookup utility function
	   if (typeof(thingy) == 'string') thingy = document.getElementById(thingy);
	   if (!thingy.addClass) {
	     // extend element with a few useful methods
	     thingy.hide = function() { this.style.display = 'none'; };
	     thingy.show = function() { this.style.display = ''; };
	     thingy.addClass = function(name) { this.removeClass(name); this.className += ' ' + name; };
	     thingy.removeClass = function(name) {
	       this.className = this.className.replace( new RegExp("\\s*" + name + "\\s*"), " ").replace(/^\s+/, '').replace(/\s+$/, '');
	     };
	     thingy.hasClass = function(name) {
	       return !!this.className.match( new RegExp("\\s*" + name + "\\s*") );
	     }
	   }
	   return thingy;
	 },

setMoviePath: function(path) {
		// set path to ZeroClipboard.swf
		this.moviePath = path;
	      },

dispatch: function(id, eventName, args) {
	    // receive event from flash movie, send to client		
	    var client = this.clients[id];
	    if (client) {
	      client.receiveEvent(eventName, args);
	    }
	  },

register: function(id, client) {
	    // register new client to receive events
	    this.clients[id] = client;
	  },

getDOMObjectPosition: function(obj) {
			// get absolute coordinates for dom element
			var info = {
left: 0, 
      top: 0, 
      width: obj.width ? obj.width : obj.offsetWidth, 
      height: obj.height ? obj.height : obj.offsetHeight
			};

			while (obj) {
			  info.left += obj.offsetLeft;
			  info.top += obj.offsetTop;
			  obj = obj.offsetParent;
			}

			return info;
		      },

Client: function(elem) {
	  // constructor for new simple upload client
	  this.handlers = {};

	  // unique ID
	  this.id = ZeroClipboard.nextId++;
	  this.movieId = 'ZeroClipboardMovie_' + this.id;

	  // register client with singleton to receive flash events
	  ZeroClipboard.register(this.id, this);

	  // create movie
	  if (elem) this.glue(elem);
	}
};

ZeroClipboard.Client.prototype = {

id: 0, // unique ID for us
    ready: false, // whether movie is ready to receive events or not
    movie: null, // reference to movie object
    clipText: '', // text to copy to clipboard
    handCursorEnabled: true, // whether to show hand cursor, or default pointer cursor
    cssEffects: true, // enable CSS mouse effects on dom container
    handlers: null, // user event handlers

    glue: function(elem) {
      // glue to DOM element
      // elem can be ID or actual DOM element object
      this.domElement = ZeroClipboard.$(elem);

      // float just above object, or zIndex 99 if dom element isn't set
      var zIndex = 99;
      if (this.domElement.style.zIndex) {
	zIndex = parseInt(this.domElement.style.zIndex) + 1;
      }

      // find X/Y position of domElement
      var box = ZeroClipboard.getDOMObjectPosition(this.domElement);

      // create floating DIV above element
      this.div = document.createElement('div');
      var style = this.div.style;
      style.position = 'absolute';
      style.left = '' + box.left + 'px';
      style.top = '' + box.top + 'px';
      style.width = '' + box.width + 'px';
      style.height = '' + box.height + 'px';
      style.zIndex = zIndex;

      // style.backgroundColor = '#f00'; // debug

      var body = document.getElementsByTagName('body')[0];
      body.appendChild(this.div);

      this.div.innerHTML = this.getHTML( box.width, box.height );
    },

getHTML: function(width, height) {
	   // return HTML for movie
	   var html = '';
	   var flashvars = 'id=' + this.id + 
	     '&width=' + width + 
	     '&height=' + height;

	   if (navigator.userAgent.match(/MSIE/)) {
	     // IE gets an OBJECT tag
	     var protocol = location.href.match(/^https/i) ? 'https://' : 'http://';
	     html += '<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="'+protocol+'download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" width="'+width+'" height="'+height+'" id="'+this.movieId+'" align="middle"><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="false" /><param name="movie" value="'+ZeroClipboard.moviePath+'" /><param name="loop" value="false" /><param name="menu" value="false" /><param name="quality" value="best" /><param name="bgcolor" value="#ffffff" /><param name="flashvars" value="'+flashvars+'"/><param name="wmode" value="transparent"/></object>';
	   }
	   else {
	     // all other browsers get an EMBED tag
	     html += '<embed id="'+this.movieId+'" src="'+ZeroClipboard.moviePath+'" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="'+width+'" height="'+height+'" name="'+this.movieId+'" align="middle" allowScriptAccess="always" allowFullScreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="'+flashvars+'" wmode="transparent" />';
	   }
	   return html;
	 },

hide: function() {
	// temporarily hide floater offscreen
	if (this.div) {
	  this.div.style.left = '-2000px';
	}
      },

show: function() {
	// show ourselves after a call to hide()
	this.reposition();
      },

destroy: function() {
	   // destroy control and floater
	   if (this.domElement && this.div) {
	     this.hide();
	     this.div.innerHTML = '';

	     var body = document.getElementsByTagName('body')[0];
	     try { body.removeChild( this.div ); } catch(e) {;}

	     this.domElement = null;
	     this.div = null;
	   }
	 },

reposition: function(elem) {
	      // reposition our floating div, optionally to new container
	      // warning: container CANNOT change size, only position
	      if (elem) {
		this.domElement = ZeroClipboard.$(elem);
		if (!this.domElement) this.hide();
	      }

	      if (this.domElement && this.div) {
		var box = ZeroClipboard.getDOMObjectPosition(this.domElement);
		var style = this.div.style;
		style.left = '' + box.left + 'px';
		style.top = '' + box.top + 'px';
	      }
	    },

setText: function(newText) {
	   // set text to be copied to clipboard
	   this.clipText = newText;
	   if (this.ready) this.movie.setText(newText);
	 },

addEventListener: function(eventName, func) {
		    // add user event listener for event
		    // event types: load, queueStart, fileStart, fileComplete, queueComplete, progress, error, cancel
		    eventName = eventName.toString().toLowerCase().replace(/^on/, '');
		    if (!this.handlers[eventName]) this.handlers[eventName] = [];
		    this.handlers[eventName].push(func);
		  },

setHandCursor: function(enabled) {
		 // enable hand cursor (true), or default arrow cursor (false)
		 this.handCursorEnabled = enabled;
		 if (this.ready) this.movie.setHandCursor(enabled);
	       },

setCSSEffects: function(enabled) {
		 // enable or disable CSS effects on DOM container
		 this.cssEffects = !!enabled;
	       },

receiveEvent: function(eventName, args) {
		// receive event from flash
		eventName = eventName.toString().toLowerCase().replace(/^on/, '');

		// special behavior for certain events
		switch (eventName) {
		  case 'load':
		    // movie claims it is ready, but in IE this isn't always the case...
		    // bug fix: Cannot extend EMBED DOM elements in Firefox, must use traditional function
		    this.movie = document.getElementById(this.movieId);
		    if (!this.movie) {
		      var self = this;
		      setTimeout( function() { self.receiveEvent('load', null); }, 1 );
		      return;
		    }

		    // firefox on pc needs a "kick" in order to set these in certain cases
		    if (!this.ready && navigator.userAgent.match(/Firefox/) && navigator.userAgent.match(/Windows/)) {
		      var self = this;
		      setTimeout( function() { self.receiveEvent('load', null); }, 100 );
		      this.ready = true;
		      return;
		    }

		    this.ready = true;
		    this.movie.setText( this.clipText );
		    this.movie.setHandCursor( this.handCursorEnabled );
		    break;

		  case 'mouseover':
		    if (this.domElement && this.cssEffects) {
		      this.domElement.addClass('hover');
		      if (this.recoverActive) this.domElement.addClass('active');
		    }
		    break;

		  case 'mouseout':
		    if (this.domElement && this.cssEffects) {
		      this.recoverActive = false;
		      if (this.domElement.hasClass('active')) {
			this.domElement.removeClass('active');
			this.recoverActive = true;
		      }
		      this.domElement.removeClass('hover');
		    }
		    break;

		  case 'mousedown':
		    if (this.domElement && this.cssEffects) {
		      this.domElement.addClass('active');
		    }
		    break;

		  case 'mouseup':
		    if (this.domElement && this.cssEffects) {
		      this.domElement.removeClass('active');
		      this.recoverActive = false;
		    }
		    break;
		} // switch eventName

		if (this.handlers[eventName]) {
		  for (var idx = 0, len = this.handlers[eventName].length; idx < len; idx++) {
		    var func = this.handlers[eventName][idx];

		    if (typeof(func) == 'function') {
		      // actual function reference
		      func(this, args);
		    }
		    else if ((typeof(func) == 'object') && (func.length == 2)) {
		      // PHP style object + method, i.e. [myObject, 'myMethod']
		      func[0][ func[1] ](this, args);
		    }
		    else if (typeof(func) == 'string') {
		      // name of function
		      window[func](this, args);
		    }
		  } // foreach event handler defined
		} // user defined handler for event
	      }

};

var clip = null;

function $(id) { return document.getElementById(id); }

function clip_init() {
  clip = new ZeroClipboard.Client();
  clip.setHandCursor( true );

  clip.addEventListener('load', my_load);
  clip.addEventListener('mouseOver', my_mouse_over);
  clip.addEventListener('complete', my_complete);

  clip.glue( 'd_clip_button' );
}

function my_load(client) {
  debugstr("Flash movie loaded and ready.");
}

function my_mouse_over(client) {
  // we can cheat a little here -- update the text on mouse over
  //clip.setText( $('fe_text').value );
  clip.setText( document.getElementById('fe_text').value );
}

function my_complete(client, text) {
  debugstr("Copied text to clipboard: " + text );
  alert('複製成功!');
}

function debugstr(msg) {
  /*
     var p = document.createElement('p');
     p.innerHTML = msg;
     $('d_debug').appendChild(p);
   */
}
function setFocus(id){
  if(obj = document.getElementById(id)){
    obj.focus();
    obj.select();
  }
}