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/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
</copyright> */

////////////////////////////////////////////////////////////////////////
//
var Montage = 	require("montage/core/core").Montage,
	Component = require("montage/ui/component").Component,
	FileIo = 	require("js/io/system/fileio").FileIo,
	ProjectIo = require("js/io/system/projectio").ProjectIo;
////////////////////////////////////////////////////////////////////////
//
exports.IoMediator = Montage.create(Component, {
	////////////////////////////////////////////////////////////////////
	//
	hasTemplate: {
		enumerable: false,
        value: false
    },
	////////////////////////////////////////////////////////////////////
    //
	deserializedFromTemplate: {
		enumerable: false,
		value: function () {
			//
		}
	},
	////////////////////////////////////////////////////////////////////
    //
    fio: {
    	enumerable: false,
    	value: FileIo
    },
    ////////////////////////////////////////////////////////////////////
    //
    pio: {
    	enumerable: false,
    	value: ProjectIo
    },
	////////////////////////////////////////////////////////////////////
    //
    fileNew: {
    	enumerable: false,
    	value: function (file, template, callback) {
    		//Loading template from template URL
    		var xhr = new XMLHttpRequest(), result;
    		xhr.open("GET", template, false);
            xhr.send();
    		if (xhr.readyState === 4) {
    			//Making call to create file, checking for return code
    			switch (this.fio.newFile({uri: file, contents: xhr.response})) {
    				case 201:
    					result = {status: 201, success: true, uri: file};
    					break;
    				case 204:
    					result = {status: 204, success: false, uri: file};
    					break;
    				case 400:
    					result = {status: 400, success: false, uri: file};
    					break;
    				default:
    					result = {status: 500, success: false, uri: file};
    					break;
    			}
    		} else {
    			result = {status: 500, success: false, uri: file};
    		}
    		//Sending result to callback if requested for handling
    		if (callback) callback(result);
    		//Codes
    		//	204: File exists | 400: File exists
		    //	201: File succesfully created | 500: Unknown (Probably cloud API not running)
    	}
    },
    ////////////////////////////////////////////////////////////////////
    //
    fileOpen: {
    	enumerable: false,
    	value: function (file, callback) {
    		//Reading file (Ninja doesn't really open a file, all in browser memory)
    		var read = this.fio.readFile({uri: file}), result;
    		//Checking for status
    		switch(read.status) {
    			case 204:
    				//Creating and formatting result object for callbak
    				result = read.file.details;
    				result.root = read.file.details.uri.replace(read.file.details.name, "");
    				//Checking for type of content to returns
    				if (result.extension !== 'html' && result.extension !== 'htm') {
    					//Simple string
    					result.content = read.file.content;
    				} else {
    					//Object to be used by Ninja Template
						result.content = this.parseHtmlToNinjaTemplate(read.file.content);
    				}
    				//Status of call
    				result.status = read.status;
    				//Calling back with result
    				if (callback) callback(result);
    				break;
    			case 404:
    				//File does not exists
    				if (callback) callback({status: read.status});
    				break;
    			default:
    				//Unknown
    				if (callback) callback({status: 500});
    				break;
    		}
    		/*
    		////////////////////////////////////////////////////////////
    		////////////////////////////////////////////////////////////
    		//Return Object Description
    		Object.status (Always presents for handling)
    		204: File exists (Success)
    		404: File does not exists (Failure)
    		500: Unknown (Probably cloud API not running)
    		
    		(Below only present if succesfull 204)
    		
    		Object.content
    		Object.extension
    		Object.name
    		Object.uri
    		Object.creationDate
    		Object.modifiedDate
    		Object.readOnly
    		Object.size
    		////////////////////////////////////////////////////////////
    		////////////////////////////////////////////////////////////
    		*/
    	}
    },
    ////////////////////////////////////////////////////////////////////
    //
    fileSave: {
    	enumerable: false,
    	value: function (file, callback) {
    		//
    		var contents, save;
    		//
    		switch (file.mode) {
    			case 'html':
    				//Copy webGL library if needed
    				if (file.webgl.length > 0) {
    					for (var i in this.application.ninja.coreIoApi.ninjaLibrary.libs) {
		    				//Checking for RDGE library to be available
		    				if (this.application.ninja.coreIoApi.ninjaLibrary.libs[i].name === 'RDGE') {
    							this.application.ninja.coreIoApi.ninjaLibrary.copyLibToCloud(file.document.root, (this.application.ninja.coreIoApi.ninjaLibrary.libs[i].name+this.application.ninja.coreIoApi.ninjaLibrary.libs[i].version).toLowerCase());
    						} else {
    							//TODO: Error handle no available library to copy
    						}
    					}
    				}
    				
    				//TODO: Add check for Monatage library to copy
    				
    				//Getting content from function to properly handle saving assets (as in external if flagged)
    				contents = this.parseNinjaTemplateToHtml(file);
    				break;
    			default:
    				contents = file.content;
    				break;
    		}
    		//Making call to save file
    		save = this.fio.saveFile({uri: file.document.uri, contents: contents});
            //Checking for callback
            if (callback) callback(save);
    	}
    },
    ////////////////////////////////////////////////////////////////////
    //
    fileSaveAs: {
    	enumerable: false,
    	value: function (copyTo, copyFrom, callback) {
    		//TODO: Implement Save As functionality
    	}
    },
    ////////////////////////////////////////////////////////////////////
    //
    fileDelete: {
    	enumerable: false,
    	value: function (file, callback) {
    		//TODO: Implement Delete functionality
    	}
    },
    ////////////////////////////////////////////////////////////////////
    //
    parseHtmlToNinjaTemplate: {
    	enumerable: false,
    	value: function (html) {
    		//Creating temp object to mimic HTML
    		var doc = window.document.implementation.createHTMLDocument(), template;
    		//Setting content to temp
    		doc.getElementsByTagName('html')[0].innerHTML = html;
    		//Creating return object
    		return {head: doc.head.innerHTML, body: doc.body.innerHTML, document: doc};
    	}
    },
    ////////////////////////////////////////////////////////////////////
    //TODO: Expand to allow more templates, clean up variables
    parseNinjaTemplateToHtml: {
    	enumerable: false,
    	value: function (template) {
    		//Injecting head and body into old document
    		template.document.content.document.body.innerHTML = template.body;
    		template.document.content.document.head.innerHTML = template.head;
    		//Getting all CSS (style or link) tags
    		var styletags = template.document.content.document.getElementsByTagName('style'),
    			linktags = template.document.content.document.getElementsByTagName('link'),
    			url = new RegExp(chrome.extension.getURL('js/document/templates/montage-html/'), 'gi'); //TODO: Make public into var
    		//Looping through link tags and removing file recreated elements
    		for (var j in styletags) {
    			if (styletags[j].getAttribute) {
    				if(styletags[j].getAttribute('data-ninja-uri') !== null && !styletags[j].getAttribute('data-ninja-template')) {//TODO: Use querySelectorAll
    					try {
    						//Checking head first
    						template.document.content.document.head.removeChild(styletags[j]);
    					} catch (e) {
    						try {
    							//Checking body if not in head
    							template.document.content.document.body.removeChild(styletags[j]);
    						} catch (e) {
    							//Error, not found!
    						}
    					}
    					
    				}
    			}
    		}
    		//TODO: Add logic to only enble tags we disabled
    		for (var l in linktags) {
    			if (linktags[l].getAttribute && linktags[l].getAttribute('disabled')) {//TODO: Use querySelectorAll
    				linktags[l].removeAttribute('disabled');
    			}
    		}
    		//Checking for type of save: styles = <style> only | css = <style> and <link> (all CSS)
    		if (template.styles) {
    			//Getting all style tags
    			var styleCounter = 0,
    				docStyles = template.document.content.document.getElementsByTagName('style');
    			//Looping through all style tags
    			for(var i in template.styles) {
    				if (template.styles[i].ownerNode) {
    					if (template.styles[i].ownerNode.getAttribute) {
    						//Checking for node not to be loaded from file
    						if (template.styles[i].ownerNode.getAttribute('data-ninja-uri') === null && !template.styles[i].ownerNode.getAttribute('data-ninja-template')) {
    							//Inseting data from rules array into tag as string
    							docStyles[styleCounter].innerHTML = this.getCssFromRules(template.styles[i].cssRules);
    							//Syncing <style> tags count since it might be mixed with <link>
    							styleCounter++;
    						}
    					}
    				}
    			}
    		} else if (template.css) {
    			//Getting all style and link tags
    			var styleCounter = 0,
    				docStyles = template.document.content.document.getElementsByTagName('style'),
    				docLinks = template.document.content.document.getElementsByTagName('link');
    			for(var i in template.css) {
    				if (template.css[i].ownerNode) {
    					if (template.css[i].ownerNode.getAttribute) {
    						if (template.css[i].ownerNode.getAttribute('data-ninja-uri') === null && !template.css[i].ownerNode.getAttribute('data-ninja-template')) {//TODO: Use querySelectorAll
    							//Inseting data from rules array into <style> as string
    							docStyles[styleCounter].innerHTML = this.getCssFromRules(template.css[i].cssRules);
    							styleCounter++;
    						} else {
    							//Saving data from rules array converted to string into <link> file
    							var save = this.fio.saveFile({uri: template.css[i].ownerNode.getAttribute('data-ninja-uri'), contents: this.getCssFromRules(template.css[i].cssRules)});
    						}
    					}
    				}
    			}
    		}
    		//Checking for webGL elements in document
    		if (template.webgl.length) {
    			//
    			var json, matchingtags = [], webgltag, scripts = template.document.content.document.getElementsByTagName('script');
    			//
    			for (var i in scripts) {
    				if (scripts[i].getAttribute) {
    					if (scripts[i].getAttribute('data-ninja-webgl') !== null) {//TODO: Use querySelectorAll
    						matchingtags.push(scripts[i]);
    					}
    				}
    			}
    			//
    			if (matchingtags.length) {
    				if (matchingtags.length === 1) {
    					webgltag = matchingtags[0];
    				} else {
    					//TODO: Add logic to handle multiple tags, perhaps combine to one
    					webgltag = matchingtags[matchingtags.length-1]; //Saving all data to last one...
    				}
    			}
    			//
    			if (!webgltag) {
    				webgltag = template.document.content.document.createElement('script');
    				webgltag.setAttribute('data-ninja-webgl', 'true');
    				template.document.content.document.head.appendChild(webgltag);
    			}
    			//TODO: Add version and other data for RDGE
    			json = '\n({\n\t"version": "X.X.X.X",\n\t"data": [';
    			//Looping through data to create escaped array
    			for (var j=0; template.webgl[j]; j++) {
    				if (j === 0) {
    					json += '\n\t\t\t"'+escape(template.webgl[j])+'"';
    				} else {
    					json += ',\n\t\t\t"'+escape(template.webgl[j])+'"';
    				}
    			}
    			//Closing array (make-shift JSON string to validate data in <script> tag)
    			json += '\n\t\t]\n})\n';
    			//Setting string in tag
    			webgltag.innerHTML = json;
    		}
    		//
    		return this.getPrettyHtml(template.document.content.document.documentElement.outerHTML.replace(url, ''));
    	}
    },
    ////////////////////////////////////////////////////////////////////
    //Method to return a string from CSS rules (to be saved to a file)
    getCssFromRules: {
    	enumerable: false,
    	value: function (list) {
    		//Variable to store CSS definitions
    		var i, str, url, css = '';
    		//Looping through list
    		if (list && list.length > 0) {
    			//Adding each list item to string and also adding breaks
    			for (i = 0; list[i]; i++) {
    				css += list[i].cssText;
    			}
    		}
    		//TODO: Add better logic for creating this string
    		url = new RegExp(chrome.extension.getURL('js/document/templates/montage-html/'), 'gi');
    		//Returning the CSS string
    		return this.getPrettyCss(css.replace(url, ''));
    	}
    },
    ////////////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////////////
    //Pretty methods (minified)
    /*
     	is-beautify javascript code courtesy of Einar Lielmanis:
	 	Code from https://github.com/einars/js-beautify
	 	License https://github.com/einars/js-beautify/blob/master/license.txt
	 	Used with author's permission
	*/
    //For HTML, including any JS or CSS (single string/file)
    getPrettyHtml: {
    	enumerable: false,
    	value: function (a,b){function h(){this.pos=0;this.token="";this.current_mode="CONTENT";this.tags={parent:"parent1",parentcount:1,parent1:""};this.tag_type="";this.token_text=this.last_token=this.last_text=this.token_type="";this.Utils={whitespace:"\n\r\t ".split(""),single_token:"br,input,link,meta,!doctype,basefont,base,area,hr,wbr,param,img,isindex,?xml,embed".split(","),extra_liners:"head,body,/html".split(","),in_array:function(a,b){for(var c=0;c<b.length;c++){if(a===b[c]){return true}}return false}};this.get_content=function(){var a="";var b=[];var c=false;while(this.input.charAt(this.pos)!=="<"){if(this.pos>=this.input.length){return b.length?b.join(""):["","TK_EOF"]}a=this.input.charAt(this.pos);this.pos++;this.line_char_count++;if(this.Utils.in_array(a,this.Utils.whitespace)){if(b.length){c=true}this.line_char_count--;continue}else if(c){if(this.line_char_count>=this.max_char){b.push("\n");for(var d=0;d<this.indent_level;d++){b.push(this.indent_string)}this.line_char_count=0}else{b.push(" ");this.line_char_count++}c=false}b.push(a)}return b.length?b.join(""):""};this.get_contents_to=function(a){if(this.pos==this.input.length){return["","TK_EOF"]}var b="";var c="";var d=new RegExp("</"+a+"\\s*>","igm");d.lastIndex=this.pos;var e=d.exec(this.input);var f=e?e.index:this.input.length;if(this.pos<f){c=this.input.substring(this.pos,f);this.pos=f}return c};this.record_tag=function(a){if(this.tags[a+"count"]){this.tags[a+"count"]++;this.tags[a+this.tags[a+"count"]]=this.indent_level}else{this.tags[a+"count"]=1;this.tags[a+this.tags[a+"count"]]=this.indent_level}this.tags[a+this.tags[a+"count"]+"parent"]=this.tags.parent;this.tags.parent=a+this.tags[a+"count"]};this.retrieve_tag=function(a){if(this.tags[a+"count"]){var b=this.tags.parent;while(b){if(a+this.tags[a+"count"]===b){break}b=this.tags[b+"parent"]}if(b){this.indent_level=this.tags[a+this.tags[a+"count"]];this.tags.parent=this.tags[b+"parent"]}delete this.tags[a+this.tags[a+"count"]+"parent"];delete this.tags[a+this.tags[a+"count"]];if(this.tags[a+"count"]==1){delete this.tags[a+"count"]}else{this.tags[a+"count"]--}}};this.get_tag=function(){var a="";var b=[];var c=false;do{if(this.pos>=this.input.length){return b.length?b.join(""):["","TK_EOF"]}a=this.input.charAt(this.pos);this.pos++;this.line_char_count++;if(this.Utils.in_array(a,this.Utils.whitespace)){c=true;this.line_char_count--;continue}if(a==="'"||a==='"'){if(!b[1]||b[1]!=="!"){a+=this.get_unformatted(a);c=true}}if(a==="="){c=false}if(b.length&&b[b.length-1]!=="="&&a!==">"&&c){if(this.line_char_count>=this.max_char){this.print_newline(false,b);this.line_char_count=0}else{b.push(" ");this.line_char_count++}c=false}b.push(a)}while(a!==">");var d=b.join("");var e;if(d.indexOf(" ")!=-1){e=d.indexOf(" ")}else{e=d.indexOf(">")}var f=d.substring(1,e).toLowerCase();if(d.charAt(d.length-2)==="/"||this.Utils.in_array(f,this.Utils.single_token)){this.tag_type="SINGLE"}else if(f==="script"){this.record_tag(f);this.tag_type="SCRIPT"}else if(f==="style"){this.record_tag(f);this.tag_type="STYLE"}else if(this.Utils.in_array(f,unformatted)){var g=this.get_unformatted("</"+f+">",d);b.push(g);this.tag_type="SINGLE"}else if(f.charAt(0)==="!"){if(f.indexOf("[if")!=-1){if(d.indexOf("!IE")!=-1){var g=this.get_unformatted("-->",d);b.push(g)}this.tag_type="START"}else if(f.indexOf("[endif")!=-1){this.tag_type="END";this.unindent()}else if(f.indexOf("[cdata[")!=-1){var g=this.get_unformatted("]]>",d);b.push(g);this.tag_type="SINGLE"}else{var g=this.get_unformatted("-->",d);b.push(g);this.tag_type="SINGLE"}}else{if(f.charAt(0)==="/"){this.retrieve_tag(f.substring(1));this.tag_type="END"}else{this.record_tag(f);this.tag_type="START"}if(this.Utils.in_array(f,this.Utils.extra_liners)){this.print_newline(true,this.output)}}return b.join("")};this.get_unformatted=function(a,b){if(b&&b.indexOf(a)!=-1){return""}var c="";var d="";var e=true;do{if(this.pos>=this.input.length){return d}c=this.input.charAt(this.pos);this.pos++;if(this.Utils.in_array(c,this.Utils.whitespace)){if(!e){this.line_char_count--;continue}if(c==="\n"||c==="\r"){d+="\n";this.line_char_count=0;continue}}d+=c;this.line_char_count++;e=true}while(d.indexOf(a)==-1);return d};this.get_token=function(){var a;if(this.last_token==="TK_TAG_SCRIPT"||this.last_token==="TK_TAG_STYLE"){var b=this.last_token.substr(7);a=this.get_contents_to(b);if(typeof a!=="string"){return a}return[a,"TK_"+b]}if(this.current_mode==="CONTENT"){a=this.get_content();if(typeof a!=="string"){return a}else{return[a,"TK_CONTENT"]}}if(this.current_mode==="TAG"){a=this.get_tag();if(typeof a!=="string"){return a}else{var c="TK_TAG_"+this.tag_type;return[a,c]}}};this.get_full_indent=function(a){a=this.indent_level+a||0;if(a<1)return"";return Array(a+1).join(this.indent_string)};this.printer=function(a,b,c,d,e){this.input=a||"";this.output=[];this.indent_character=b;this.indent_string="";this.indent_size=c;this.brace_style=e;this.indent_level=0;this.max_char=d;this.line_char_count=0;for(var f=0;f<this.indent_size;f++){this.indent_string+=this.indent_character}this.print_newline=function(a,b){this.line_char_count=0;if(!b||!b.length){return}if(!a){while(this.Utils.in_array(b[b.length-1],this.Utils.whitespace)){b.pop()}}b.push("\n");for(var c=0;c<this.indent_level;c++){b.push(this.indent_string)}};this.print_token=function(a){this.output.push(a)};this.indent=function(){this.indent_level++};this.unindent=function(){if(this.indent_level>0){this.indent_level--}}};return this}var c,d,e,f,g;b=b||{};d=b.indent_size||4;e=b.indent_char||" ";g=b.brace_style||"collapse";f=b.max_char||"70";unformatted=b.unformatted||["a"];c=new h;c.printer(a,e,d,f,g);while(true){var i=c.get_token();c.token_text=i[0];c.token_type=i[1];if(c.token_type==="TK_EOF"){break}switch(c.token_type){case"TK_TAG_START":c.print_newline(false,c.output);c.print_token(c.token_text);c.indent();c.current_mode="CONTENT";break;case"TK_TAG_STYLE":case"TK_TAG_SCRIPT":c.print_newline(false,c.output);c.print_token(c.token_text);c.current_mode="CONTENT";break;case"TK_TAG_END":if(c.last_token==="TK_CONTENT"&&c.last_text===""){var j=c.token_text.match(/\w+/)[0];var k=c.output[c.output.length-1].match(/<\s*(\w+)/);if(k===null||k[1]!==j)c.print_newline(true,c.output)}c.print_token(c.token_text);c.current_mode="CONTENT";break;case"TK_TAG_SINGLE":c.print_newline(false,c.output);c.print_token(c.token_text);c.current_mode="CONTENT";break;case"TK_CONTENT":if(c.token_text!==""){c.print_token(c.token_text)}c.current_mode="TAG";break;case"TK_STYLE":case"TK_SCRIPT":if(c.token_text!==""){c.output.push("\n");var l=c.token_text;if(c.token_type=="TK_SCRIPT"){var m=typeof js_beautify=="function"&&js_beautify}else if(c.token_type=="TK_STYLE"){var m=typeof this.getPrettyCss=="function"&&this.getPrettyCss}if(b.indent_scripts=="keep"){var n=0}else if(b.indent_scripts=="separate"){var n=-c.indent_level}else{var n=1}var o=c.get_full_indent(n);if(m){l=m(l.replace(/^\s*/,o),b)}else{var p=l.match(/^\s*/)[0];var q=p.match(/[^\n\r]*$/)[0].split(c.indent_string).length-1;var r=c.get_full_indent(n-q);l=l.replace(/^\s*/,o).replace(/\r\n|\r|\n/g,"\n"+r).replace(/\s*$/,"")}if(l){c.print_token(l);c.print_newline(true,c.output)}}c.current_mode="TAG";break}c.last_token=c.token_type;c.last_text=c.token_text}return c.output.join("")}
    },
    //For CSS (single string/file)
    getPrettyCss: {
    	enumerable: false,
    	value: function (a,b){function t(){r--;p=p.slice(0,-c)}function s(){r++;p+=q}function o(a,b){return u.slice(-a.length+(b||0),b).join("").toLowerCase()==a}function n(){var b=g;i();while(i()){if(h=="*"&&j()=="/"){g++;break}}return a.substring(b,g+1)}function m(){var a=g;do{}while(e.test(i()));return g!=a+1}function l(){var a=g;while(e.test(j()))g++;return g!=a}function k(b){var c=g;while(i()){if(h=="\\"){i();i()}else if(h==b){break}else if(h=="\n"){break}}return a.substring(c,g+1)}function j(){return a.charAt(g+1)}function i(){return h=a.charAt(++g)}b=b||{};var c=b.indent_size||4;var d=b.indent_char||" ";if(typeof c=="string")c=parseInt(c);var e=/^\s+$/;var f=/[\w$\-_]/;var g=-1,h;var p=a.match(/^[\r\n]*[\t ]*/)[0];var q=Array(c+1).join(d);var r=0;print={};print["{"]=function(a){print.singleSpace();u.push(a);print.newLine()};print["}"]=function(a){print.newLine();u.push(a);print.newLine()};print.newLine=function(a){if(!a)while(e.test(u[u.length-1]))u.pop();if(u.length)u.push("\n");if(p)u.push(p)};print.singleSpace=function(){if(u.length&&!e.test(u[u.length-1]))u.push(" ")};var u=[];if(p)u.push(p);while(true){var v=m();if(!h)break;if(h=="{"){s();print["{"](h)}else if(h=="}"){t();print["}"](h)}else if(h=='"'||h=="'"){u.push(k(h))}else if(h==";"){u.push(h,"\n",p)}else if(h=="/"&&j()=="*"){print.newLine();u.push(n(),"\n",p)}else if(h=="("){u.push(h);l();if(o("url",-1)&&i()){if(h!=")"&&h!='"'&&h!="'")u.push(k(")"));else g--}}else if(h==")"){u.push(h)}else if(h==","){l();u.push(h);print.singleSpace()}else if(h=="]"){u.push(h)}else if(h=="["||h=="="){l();u.push(h)}else{if(v)print.singleSpace();u.push(h)}}var w=u.join("").replace(/[\n ]+$/,"");return w}
    }
    ////////////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////////////
});
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////