/**
* █▒▓▒░ The FlexPaper Project 
* 
* Copyright (c) 2009 - 2011 Devaldi Ltd
*
* Commercial licenses are available. 
* When purchasing a commercial license, its terms substitute this license.
* Please see http://flexpaper.devaldi.com/ for further details.
* 
*/

/** 
*
* FlexPaper helper function for retrieving a active FlexPaper instance 
*
*/ 
window.$FlexPaper = window.getDocViewer = window["$FlexPaper"] = function(id){
	var instance = (id==="undefined")?"":id;
	
    if (window['ViewerMode'] == 'flash') {
		if (window['flexpaper']) 
			return window['flexpaper'];
		else 
			window['flexpaper'] = window.FlexPaperViewer_Instance.getApi();
		
		return window['flexpaper'];
	}else if(window['ViewerMode'] == 'html'){
		return window["FlexPaperViewer_Instance"+instance];
	}
};

/**
*
* FlexPaper constructor (name of swf, name of placeholder, config)
*
*/
window.FlexPaperViewer = window.$f = function() {
	var config = arguments[2].config;
	var _SWFFile,_PDFFile,_IMGFiles,_JSONFile  = "",_jsDirectory="";
	var _uDoc = ((config.DOC !=null)?unescape(config.DOC):null);
	var instance = "FlexPaperViewer_Instance"+((arguments[1]==="undefined")?"":arguments[1]); 
	
	if (_uDoc != null) {
		_SWFFile = translateUrlByFormat(_uDoc,"swf"); 
		_PDFFile = translateUrlByFormat(_uDoc,"pdf"); 
		_JSONFile = translateUrlByFormat(_uDoc,"json"); 
		_IMGFiles = translateUrlByFormat(_uDoc,"png"); 
	}
	
	_SWFFile  = (config.SwfFile!=null?config.SwfFile:_SWFFile);
	_SWFFile  = (config.SWFFile!=null?config.SWFFile:_SWFFile);
	_PDFFile = (config.PDFFile!=null?config.PDFFile:_PDFFile);
	_IMGFiles = (config.IMGFiles!=null?config.IMGFiles:_IMGFiles);
	_IMGFiles = (config.PageImagePattern!=null?config.PageImagePattern:_IMGFiles);
	_JSONFile = (config.JSONFile!=null?config.JSONFile:_JSONFile);
	_jsDirectory = (config.jsDirectory!=null?config.jsDirectory:"js/");
	
	window[instance] = flashembed(arguments[1], {
			src: arguments[0]+".swf",
			version: [10, 0],
			expressInstall: "js/expressinstall.swf"
		},{
			SwfFile  : _SWFFile,
			PdfFile  : _PDFFile,
			IMGFiles  : _IMGFiles,
			JSONFile  : _JSONFile,
			useCustomJSONFormat : config.useCustomJSONFormat,
			JSONPageDataFormat : config.JSONPageDataFormat,
			Scale : config.Scale, 
			ZoomTransition : config.ZoomTransition,
			ZoomTime : config.ZoomTime,
			ZoomInterval : config.ZoomInterval,
			FitPageOnLoad : config.FitPageOnLoad,
			FitWidthOnLoad : config.FitWidthOnLoad,
			FullScreenAsMaxWindow : config.FullScreenAsMaxWindow,
			ProgressiveLoading : config.ProgressiveLoading,
			MinZoomSize : config.MinZoomSize,
			MaxZoomSize : config.MaxZoomSize,
			SearchMatchAll : config.SearchMatchAll,
			SearchServiceUrl : config.SearchServiceUrl,
			InitViewMode : config.InitViewMode,
			BitmapBasedRendering : config.BitmapBasedRendering,
			StartAtPage : config.StartAtPage,
			
			ViewModeToolsVisible : ((config.ViewModeToolsVisible!=null)?config.ViewModeToolsVisible:true),
			ZoomToolsVisible : ((config.ZoomToolsVisible!=null)?config.ZoomToolsVisible:true),
			NavToolsVisible : ((config.NavToolsVisible!=null)?config.NavToolsVisible:true),
			CursorToolsVisible : ((config.SearchToolsVisible!=null)?config.CursorToolsVisible:true),
			SearchToolsVisible : ((config.SearchToolsVisible!=null)?config.SearchToolsVisible:true),
			  
			RenderingOrder : config.RenderingOrder,
			  
			localeChain : config.localeChain,
			jsDirectory : _jsDirectory,
			key : config.key
	});
};

function translateUrlByFormat(url,format){
	return (url!=null && url.indexOf('{format}') > 0 ? url.replace("{format}", format):null);
}

function loadFromUrl(instance,url){
	var pageRenderer = new ImagePageRenderer({
						   			jsonfile : translateUrlByFormat(unescape(url),"json"),
									pageImagePattern : translateUrlByFormat(unescape(url),"png")
						  			});

	pageRenderer.initialize(function(){
		window.$FlexPaper(instance).loadDoc(	pageRenderer,pageRenderer.getNumPages(),pageRenderer.getDimensions() );
		
		if (window['onDocumentLoaded']) {
			onDocumentLoaded(pageRenderer.getNumPages());
		}
	});
}

/** 
 * 
 * FlexPaper embedding functionality. Based on FlashEmbed
 *
 */

(function() {
		
	var IE = document.all,
		 URL = 'http://www.adobe.com/go/getflashplayer',
		 JQUERY = typeof jQuery == 'function', 
		 RE = /(\d+)[^\d]+(\d+)[^\d]*(\d*)/,
		 GLOBAL_OPTS = { 
			// very common opts
			width: '100%',
			height: '100%',		
			id: "_" + ("" + Math.random()).slice(9),
			
			// flashembed defaults
			allowfullscreen: true,
			allowscriptaccess: 'always',
			quality: 'high',	
			
			// flashembed specific options
			version: [3, 0],
			onFail: null,
			expressInstall: null, 
			w3c: false,
			cachebusting: false  		 		 
	};
	
	// version 9 bugfix: (http://blog.deconcept.com/2006/07/28/swfobject-143-released/)
	if (window.attachEvent) {
		window.attachEvent("onbeforeunload", function() {
			__flash_unloadHandler = function() {};
			__flash_savedUnloadHandler = function() {};
		});
	}
	
	// simple extend
	function extend(to, from) {
		if (from) {
			for (var key in from) {
				if (from.hasOwnProperty(key)) {
					to[key] = from[key];
				}
			}
		} 
		return to;
	}	

	// used by asString method	
	function map(arr, func) {
		var newArr = []; 
		for (var i in arr) {
			if (arr.hasOwnProperty(i)) {
				newArr[i] = func(arr[i]);
			}
		}
		return newArr;
	}

	window.flashembed = function(root, opts, conf) {
	
		// root must be found / loaded	
		if (typeof root == 'string') {
			root = document.getElementById(root.replace("#", ""));
		}
		
		// not found
		if (!root) { return; }
		
		root.onclick = function(){return false;}
		
		if (typeof opts == 'string') {
			opts = {src: opts};	
		}

		return new Flash(root, extend(extend({}, GLOBAL_OPTS), opts), conf); 
	};	
	
	// flashembed "static" API
	var f = extend(window.flashembed, {
		
		conf: GLOBAL_OPTS,
	
		getVersion: function()  {
			var fo, ver;
			
			try {
				ver = navigator.plugins["Shockwave Flash"].description.slice(16); 
			} catch(e) {
				
				try  {
					fo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
					ver = fo && fo.GetVariable("$version");
					
				} catch(err) {
                try  {
                    fo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
                    ver = fo && fo.GetVariable("$version");  
                } catch(err2) { } 						
				} 
			}
			
			ver = RE.exec(ver);
			return ver ? [ver[1], ver[3]] : [0, 0];
		},
		
		asString: function(obj) { 

			if (obj === null || obj === undefined) { return null; }
			var type = typeof obj;
			if (type == 'object' && obj.push) { type = 'array'; }
			
			switch (type){  
				
				case 'string':
					obj = obj.replace(new RegExp('(["\\\\])', 'g'), '\\$1');
					
					// flash does not handle %- characters well. transforms "50%" to "50pct" (a dirty hack, I admit)
					obj = obj.replace(/^\s?(\d+\.?\d+)%/, "$1pct");
					return '"' +obj+ '"';
					
				case 'array':
					return '['+ map(obj, function(el) {
						return f.asString(el);
					}).join(',') +']'; 
					
				case 'function':
					return '"function()"';
					
				case 'object':
					var str = [];
					for (var prop in obj) {
						if (obj.hasOwnProperty(prop)) {
							str.push('"'+prop+'":'+ f.asString(obj[prop]));
						}
					}
					return '{'+str.join(',')+'}';
			}
			
			// replace ' --> "  and remove spaces
			return String(obj).replace(/\s/g, " ").replace(/\'/g, "\"");
		},
		
		getHTML: function(opts, conf) {

			opts = extend({}, opts);
			
			/******* OBJECT tag and it's attributes *******/
			var html = '<object width="' + opts.width + 
				'" height="' + opts.height + 
				'" id="' + opts.id + 
				'" name="' + opts.id + '"';
			
			if (opts.cachebusting) {
				opts.src += ((opts.src.indexOf("?") != -1 ? "&" : "?") + Math.random());		
			}			
			
			if (opts.w3c || !IE) {
				html += ' data="' +opts.src+ '" type="application/x-shockwave-flash"';		
			} else {
				html += ' classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"';	
			}
			
			html += '>'; 
			
			/******* nested PARAM tags *******/
			if (opts.w3c || IE) {
				html += '<param name="movie" value="' +opts.src+ '" />'; 	
			} 
			
			// not allowed params
			opts.width = opts.height = opts.id = opts.w3c = opts.src = null;
			opts.onFail = opts.version = opts.expressInstall = null;
			
			for (var key in opts) {
				if (opts[key]) {
					html += '<param name="'+ key +'" value="'+ opts[key] +'" />';
				}
			}	
		
			/******* FLASHVARS *******/
			var vars = "";
			
			if (conf) {
				for (var k in conf) { 
					if (conf[k]) {
						var val = conf[k]; 
						vars += k +'='+ (/function|object/.test(typeof val) ? f.asString(val) : val) + '&';
					}
				}
				vars = vars.slice(0, -1);
				html += '<param name="flashvars" value=\'' + vars + '\' />';
			}
			
			html += "</object>";	
			
			return html;				
		},
		
		isSupported: function(ver) {
			return VERSION[0] > ver[0] || VERSION[0] == ver[0] && VERSION[1] >= ver[1];			
		}		
		
	});
	
	var VERSION = f.getVersion(); 
	
	function Flash(root, opts, conf) {  
	                                                
		// version is ok
		if ((conf.RenderingOrder.indexOf('flash') == 0) && f.isSupported(opts.version)) {
			window['ViewerMode'] = 'flash';
			
			root.innerHTML = f.getHTML(opts, conf);
			
		// express install
		} else if ((conf.RenderingOrder.indexOf('flash') == 0) && opts.expressInstall && f.isSupported([6, 65])) {
			window['ViewerMode'] = 'flash';
			
			root.innerHTML = f.getHTML(extend(opts, {src: opts.expressInstall}), {
				MMredirectURL: location.href,
				MMplayerType: 'PlugIn',
				MMdoctitle: document.title
			});	
		} else { //use html viewer or die
			window['ViewerMode'] = 'html';
			if(true){
				$(document).ready(function() {
					$.getScript(conf.jsDirectory+'FlexPaperViewer.js', function() {
						var viewerId = $(root).attr('id');
						var userAgent = navigator.userAgent.toLowerCase();
						var browser = {
							version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
							safari: /webkit/.test(userAgent),
							opera: /opera/.test(userAgent),
							msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
							mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent),
							chrome: /chrome/.test(userAgent)
						};
						
						var supportsPDFJS 	= 	(browser.mozilla && browser.version.split(".")[0] >= 4) ||
												(browser.chrome && browser.version.split(".") >= 535) ||
												(browser.msie && browser.version.split(".")[0] >= 9) ||
												(isIOSDevice() && !isOldIOSDevice()) ||
												(browser.safari && browser.version.split(".")[0] >= 534);
												
						var oRenderingList 	= conf.RenderingOrder.split(",");
						var pageRenderer 	= null;
												
						if(conf.PdfFile!=null && conf.PdfFile.length>0 && conf.RenderingOrder.split(",").length>1 && supportsPDFJS && (oRenderingList[0] == 'html5' || oRenderingList[1] == 'html5')){
							pageRenderer = new CanvasPageRenderer(viewerId,conf.PdfFile);	
						}else{
							pageRenderer = new ImagePageRenderer(
							viewerId,
							{
				   			jsonfile : conf.JSONFile,
							pageImagePattern : conf.IMGFiles,
							compressedJSONFormat : !conf.useCustomJSONFormat,
							JSONPageDataFormat : conf.JSONPageDataFormat
							});							
						}					
						
						var instance = "FlexPaperViewer_Instance"+((viewerId==="undefined")?"":viewerId);

						window[instance] = new FlexPaperViewer_HTML({
							rootid : viewerId,
				            document: {
				                SWFFile : conf.SwfFile,
				                IMGFiles : conf.IMGFiles,
				                JSONFile : conf.JSONFile,
				                PDFFile : conf.PdfFile,
								Scale : conf.Scale,
								FitPageOnLoad : conf.FitPageOnLoad,
								FitWidthOnLoad : conf.FitWidthOnLoad,
								MinZoomSize : conf.MinZoomSize,
								MaxZoomSize : conf.MaxZoomSize,
								SearchMatchAll : conf.SearchMatchAll,
								InitViewMode : conf.InitViewMode,
								RenderingOrder : conf.RenderingOrder,
								useCustomJSONFormat : conf.useCustomJSONFormat,
								JSONPageDataFormat : conf.JSONPageDataFormat,
								ZoomInterval : conf.ZoomInterval,
								ViewModeToolsVisible : conf.ViewModeToolsVisible,
								ZoomToolsVisible : conf.ZoomToolsVisible,
								NavToolsVisible : conf.NavToolsVisible,
								CursorToolsVisible : conf.CursorToolsVisible,
								SearchToolsVisible : conf.SearchToolsVisible
				            }, 
							renderer : pageRenderer,
							key : conf.key,
							jsDirectory : conf.jsDirectory
				        });
						
						window[instance].initialize();
						window[instance].bindEvents();
						
						window[instance]['load'] = loadFromUrl;
						window[instance]['loadDoc'] = window[instance].loadDoc;
						window[instance]['fitWidth'] = window[instance].fitwidth;
						window[instance]['fitHeight'] = window[instance].fitheight;
						window[instance]['gotoPage'] = window[instance].gotoPage;
						window[instance]['getCurrPage'] = window[instance].getCurrPage;
						window[instance]['getTotalPages'] = window[instance].getTotalPages;
						window[instance]['nextPage'] = window[instance].next;
						window[instance]['prevPage'] = window[instance].previous;
						window[instance]['setZoom'] = window[instance].Zoom;
						window[instance]['Zoom'] = window[instance].Zoom;
						window[instance]['searchText'] = window[instance].searchText;
						//window[instance]['nextSearchMatch'] = window[instance].nextSearchMatch; //todo
						//window[instance]['prevSearchMatch'] = window[instance].nextSearchMatch; //todo
						window[instance]['switchMode'] = window[instance].switchMode;
						window[instance]['printPaper'] = window[instance].printPaper;
						//window[instance]['highlight'] = window[instance].highlight; //todo
						//window[instance]['postSnapshot'] = window[instance].postSnapshot; //todo
						
		   			    pageRenderer.initialize(function(){
							  window[instance].document.numPages = pageRenderer.getNumPages();
							  window[instance].document.dimensions = pageRenderer.getDimensions();
							  window[instance].show();
							if(window['onDocumentLoaded'])
								onDocumentLoaded(pageRenderer.getNumPages());	
						});					
					});
				});
			}else{
				// fail #2.1 custom content inside container
				if (!root.innerHTML.replace(/\s/g, '')) {
					var pageHost = ((document.location.protocol == "https:") ? "https://" :	"http://");
					
					root.innerHTML = 
						"<h2>Your browser is not compatible with FlexPaper</h2>" + 
						"<h3>Upgrade to a newer browser or download Adobe Flash Player 10 or higher.</h3>" + 
						"<p>Click on the icon below to download the latest version of Adobe Flash" + 
						"<a href='http://www.adobe.com/go/getflashplayer'><img src='" 
											+ pageHost + "www.adobe.com/images/shared/download_buttons/get_flash_player.gif' alt='Get Adobe Flash player' /></a>";
																							
					if (root.tagName == 'A') {	
						root.onclick = function() {
							location.href = URL;
						};
					}				
				}
				
				// onFail
				if (opts.onFail) {
					var ret = opts.onFail.call(this);
					if (typeof ret == 'string') { root.innerHTML = ret; }	
				}		
			}	
		}
		
		// http://flowplayer.org/forum/8/18186#post-18593
		if (IE) {
			window[opts.id] = document.getElementById(opts.id);
		} 
		
		// API methods for callback
		extend(this, {
				
			getRoot: function() {
				return root;	
			},
			
			getOptions: function() {
				return opts;	
			},

			
			getConf: function() {
				return conf;	
			}, 
			
			getApi: function() {
				return root.firstChild;	
			}
			
		}); 
	}
	
	// setup jquery support
	if (JQUERY) {
		
		// tools version number
		jQuery.tools = jQuery.tools || {version: '1.2.5'};
		
		jQuery.tools.flashembed = {  
			conf: GLOBAL_OPTS
		};	
		
		jQuery.fn.flashembed = function(opts, conf) {		
			return this.each(function() { 
				$(this).data("flashembed", flashembed(this, opts, conf));
			});
		}; 
	} 
	
})();