/**!
 * AngularJS file upload/drop directive and service with progress and abort
 * @author  Danial  <danial.farid@gmail.com>
 * @version 4.1.0
 */
(function () {

var key, i;
function patchXHR(fnName, newFn) {
    window.XMLHttpRequest.prototype[fnName] = newFn(window.XMLHttpRequest.prototype[fnName]);
}

if (window.XMLHttpRequest && !window.XMLHttpRequest.__isFileAPIShim) {
    patchXHR('setRequestHeader', function (orig) {
        return function (header, value) {
            if (header === '__setXHR_') {
                var val = value(this);
                // fix for angular < 1.2.0
                if (val instanceof Function) {
                    val(this);
                }
            } else {
                orig.apply(this, arguments);
            }
        }
    });
}

var ngFileUpload = angular.module('ngFileUpload', []);

ngFileUpload.version = '4.1.0';
ngFileUpload.service('Upload', ['$http', '$q', '$timeout', function ($http, $q, $timeout) {
    function sendHttp(config) {
        config.method = config.method || 'POST';
        config.headers = config.headers || {};
        config.transformRequest = config.transformRequest || function (data, headersGetter) {
            if (window.ArrayBuffer && data instanceof window.ArrayBuffer) {
                return data;
            }
            return $http.defaults.transformRequest[0](data, headersGetter);
        };
        var deferred = $q.defer();
        var promise = deferred.promise;

        config.headers['__setXHR_'] = function () {
            return function (xhr) {
                if (!xhr) return;
                config.__XHR = xhr;
                config.xhrFn && config.xhrFn(xhr);
                xhr.upload.addEventListener('progress', function (e) {
                    e.config = config;
                    deferred.notify ? deferred.notify(e) : promise.progress_fn && $timeout(function () {
                        promise.progress_fn(e)
                    });
                }, false);
                //fix for firefox not firing upload progress end, also IE8-9
                xhr.upload.addEventListener('load', function (e) {
                    if (e.lengthComputable) {
                        e.config = config;
                        deferred.notify ? deferred.notify(e) : promise.progress_fn && $timeout(function () {
                            promise.progress_fn(e)
                        });
                    }
                }, false);
            };
        };

        $http(config).then(function (r) {
            deferred.resolve(r)
        }, function (e) {
            deferred.reject(e)
        }, function (n) {
            deferred.notify(n)
        });

        promise.success = function (fn) {
            promise.then(function (response) {
                fn(response.data, response.status, response.headers, config);
            });
            return promise;
        };

        promise.error = function (fn) {
            promise.then(null, function (response) {
                fn(response.data, response.status, response.headers, config);
            });
            return promise;
        };

        promise.progress = function (fn) {
            promise.progress_fn = fn;
            promise.then(null, null, function (update) {
                fn(update);
            });
            return promise;
        };
        promise.abort = function () {
            if (config.__XHR) {
                $timeout(function () {
                    config.__XHR.abort();
                });
            }
            return promise;
        };
        promise.xhr = function (fn) {
            config.xhrFn = (function (origXhrFn) {
                return function () {
                    origXhrFn && origXhrFn.apply(promise, arguments);
                    fn.apply(promise, arguments);
                }
            })(config.xhrFn);
            return promise;
        };

        return promise;
    }

    this.upload = function (config) {
        config.headers = config.headers || {};
        config.headers['Content-Type'] = undefined;
        config.transformRequest = config.transformRequest ?
            (angular.isArray(config.transformRequest) ?
                config.transformRequest : [config.transformRequest]) : [];
        config.transformRequest.push(function (data) {
            var formData = new FormData();
            var allFields = {};
            for (key in config.fields) {
                if (config.fields.hasOwnProperty(key)) {
                    allFields[key] = config.fields[key];
                }
            }
            if (data) allFields['data'] = data;

            if (config.formDataAppender) {
                for (key in allFields) {
                    if (allFields.hasOwnProperty(key)) {
                        config.formDataAppender(formData, key, allFields[key]);
                    }
                }
            } else {
                for (key in allFields) {
                    if (allFields.hasOwnProperty(key)) {
                        var val = allFields[key];
                        if (val !== undefined) {
                            if (angular.isDate(val)) {
                                val = val.toISOString();
                            }
                            if (angular.isString(val)) {
                                formData.append(key, val);
                            } else {
                                if (config.sendObjectsAsJsonBlob && angular.isObject(val)) {
                                    formData.append(key, new Blob([val], {type: 'application/json'}));
                                } else {
                                    formData.append(key, JSON.stringify(val));
                                }
                            }

                        }
                    }
                }
            }

            if (config.file != null) {
                var fileFormName = config.fileFormDataName || 'file';

                if (angular.isArray(config.file)) {
                    var isFileFormNameString = angular.isString(fileFormName);
                    for (var i = 0; i < config.file.length; i++) {
                        formData.append(isFileFormNameString ? fileFormName : fileFormName[i], config.file[i],
                            (config.fileName && config.fileName[i]) || config.file[i].name);
                    }
                } else {
                    formData.append(fileFormName, config.file, config.fileName || config.file.name);
                }
            }
            return formData;
        });

        return sendHttp(config);
    };

    this.http = function (config) {
        return sendHttp(config);
    };
}]);

ngFileUpload.directive('ngfSelect', ['$parse', '$timeout', '$compile',
    function ($parse, $timeout, $compile) {
        return {
            restrict: 'AEC',
            require: '?ngModel',
            link: function (scope, elem, attr, ngModel) {
                linkFileSelect(scope, elem, attr, ngModel, $parse, $timeout, $compile);
            }
        }
    }]);

function linkFileSelect(scope, elem, attr, ngModel, $parse, $timeout, $compile) {
    function isInputTypeFile() {
        return elem[0].tagName.toLowerCase() === 'input' && elem.attr('type') && elem.attr('type').toLowerCase() === 'file';
    }
    var changeFnAttr = attr.ngfChange || (attr.ngfSelect && attr.ngfSelect.indexOf('(') > 0);
    var isUpdating = false;
    function changeFn(evt) {
        if (!isUpdating) {
            isUpdating = true;
            try {
                var fileList = evt.__files_ || (evt.target && evt.target.files);
                var files = [], rejFiles = [];

                for (var i = 0; i < fileList.length; i++) {
                    var file = fileList.item(i);
                    if (validate(scope, $parse, attr, file, evt)) {
                        files.push(file);
                    } else {
                        rejFiles.push(file);
                    }
                }
                updateModel($parse, $timeout, scope, ngModel, attr, changeFnAttr, files, rejFiles, evt);
                if (files.length == 0) evt.target.value = files;
//                if (evt.target && evt.target.getAttribute('__ngf_gen__')) {
//                    angular.element(evt.target).remove();
//                }
            } finally {
                isUpdating = false;
            }
        }
    }

    function bindAttrToFileInput(fileElem) {
        if (attr.ngfMultiple) fileElem.attr('multiple', $parse(attr.ngfMultiple)(scope));
        if (!$parse(attr.ngfMultiple)(scope)) fileElem.attr('multiple', undefined);
        if (attr['accept']) fileElem.attr('accept', attr['accept']);
        if (attr.ngfCapture) fileElem.attr('capture', $parse(attr.ngfCapture)(scope));
        if (attr.ngfDisabled) fileElem.attr('disabled', $parse(attr.ngfDisabled)(scope));
        for (var i = 0; i < elem[0].attributes.length; i++) {
            var attribute = elem[0].attributes[i];
            if (attribute.name !== 'type' && attribute.name !== 'class' && attribute.name !== 'id' && attribute.name !== 'style') {
            	fileElem.attr(attribute.name, attribute.value);
            }
        }
    }

    function createFileInput(evt) {
        if (elem.attr('disabled')) {
            return;
        }
        var fileElem = angular.element('<input type="file">');
        bindAttrToFileInput(fileElem);

        if (isInputTypeFile()) {
            elem.replaceWith(fileElem);
            elem = fileElem;
        } else {
            fileElem.css('display', 'none').attr('tabindex', '-1').attr('__ngf_gen__', true);
            if (elem.__ngf_ref_elem__) {elem.__ngf_ref_elem__.remove();}
            elem.__ngf_ref_elem__ = fileElem;
            document.body.appendChild(fileElem[0]);
        }

        return fileElem;
    }

    function resetModel(evt) {
        updateModel($parse, $timeout, scope, ngModel, attr, changeFnAttr, [], [], evt, true);
    }

    function clickHandler(evt) {
    	evt.preventDefault();
        var fileElem = createFileInput(evt);
        if (fileElem) {
        	fileElem.bind('change', changeFn);
        	resetModel(evt);

        	function clickAndAssign() {
            	fileElem[0].click();
    	        if (isInputTypeFile()) {
    	            elem.bind('click touchend', clickHandler);
    	            evt.preventDefault()
    	        }
        	}
        	
        	// fix for android native browser
        	if (navigator.userAgent.toLowerCase().match(/android/)) {
                setTimeout(function() {
                	clickAndAssign();
                }, 0);        		
        	} else {
        		clickAndAssign();
        	}
        }
    }

    if (window.FileAPI && window.FileAPI.ngfFixIE) {
        window.FileAPI.ngfFixIE(elem, createFileInput, bindAttrToFileInput, changeFn, resetModel);
    } else {
        elem.bind('click touchend', clickHandler);
    }
}

ngFileUpload.directive('ngfDrop', ['$parse', '$timeout', '$location', function ($parse, $timeout, $location) {
    return {
        restrict: 'AEC',
        require: '?ngModel',
        link: function (scope, elem, attr, ngModel) {
            linkDrop(scope, elem, attr, ngModel, $parse, $timeout, $location);
        }
    }
}]);

ngFileUpload.directive('ngfNoFileDrop', function () {
    return function (scope, elem) {
        if (dropAvailable()) elem.css('display', 'none')
    }
});

ngFileUpload.directive('ngfDropAvailable', ['$parse', '$timeout', function ($parse, $timeout) {
    return function (scope, elem, attr) {
        if (dropAvailable()) {
            var fn = $parse(attr.ngfDropAvailable);
            $timeout(function () {
                fn(scope);
                if (fn.assign) {
                    fn.assign(scope, true);                	
                }
            });
        }
    }
}]);

function linkDrop(scope, elem, attr, ngModel, $parse, $timeout, $location) {
    var available = dropAvailable();
    if (attr.dropAvailable) {
        $timeout(function () {
        	scope[attr.dropAvailable] ? scope[attr.dropAvailable].value = available : scope[attr.dropAvailable] = available;
        });
    }
    if (!available) {
        if ($parse(attr.ngfHideOnDropNotAvailable)(scope) == true) {
            elem.css('display', 'none');
        }
        return;
    }
    var leaveTimeout = null;
    var stopPropagation = $parse(attr.ngfStopPropagation);
    var dragOverDelay = 1;
    var accept = $parse(attr.ngfAccept);
    var disabled = $parse(attr.ngfDisabled);
    var actualDragOverClass;

    elem[0].addEventListener('dragover', function (evt) {
        if (disabled(scope)) return;
        evt.preventDefault();
        if (stopPropagation(scope)) evt.stopPropagation();
        // handling dragover events from the Chrome download bar
        if (navigator.userAgent.indexOf("Chrome") > -1) {
            var b = evt.dataTransfer.effectAllowed;
            evt.dataTransfer.dropEffect = ('move' === b || 'linkMove' === b) ? 'move' : 'copy';
        }
        $timeout.cancel(leaveTimeout);
        if (!scope.actualDragOverClass) {
            actualDragOverClass = calculateDragOverClass(scope, attr, evt);
        }
        elem.addClass(actualDragOverClass);
    }, false);
    elem[0].addEventListener('dragenter', function (evt) {
        if (disabled(scope)) return;
        evt.preventDefault();
        if (stopPropagation(scope)) evt.stopPropagation();
    }, false);
    elem[0].addEventListener('dragleave', function () {
        if (disabled(scope)) return;
        leaveTimeout = $timeout(function () {
            elem.removeClass(actualDragOverClass);
            actualDragOverClass = null;
        }, dragOverDelay || 1);
    }, false);
    elem[0].addEventListener('drop', function (evt) {
        if (disabled(scope)) return;
        evt.preventDefault();
        if (stopPropagation(scope)) evt.stopPropagation();
        elem.removeClass(actualDragOverClass);
        actualDragOverClass = null;
        extractFiles(evt, function (files, rejFiles) {
            updateModel($parse, $timeout, scope, ngModel, attr,
                attr.ngfChange || (attr.ngfDrop && attr.ngfDrop.indexOf('(') > 0), files, rejFiles, evt)
        }, $parse(attr.ngfAllowDir)(scope) != false, attr.multiple || $parse(attr.ngfMultiple)(scope));
    }, false);

    function calculateDragOverClass(scope, attr, evt) {
        var accepted = true;
        var items = evt.dataTransfer.items;
        if (items != null) {
            for (var i = 0; i < items.length && accepted; i++) {
                accepted = accepted
                    && (items[i].kind == 'file' || items[i].kind == '')
                    && validate(scope, $parse, attr, items[i], evt);
            }
        }
        var clazz = $parse(attr.ngfDragOverClass)(scope, {$event: evt});
        if (clazz) {
            if (clazz.delay) dragOverDelay = clazz.delay;
            if (clazz.accept) clazz = accepted ? clazz.accept : clazz.reject;
        }
        return clazz || attr.ngfDragOverClass || 'dragover';
    }

    function extractFiles(evt, callback, allowDir, multiple) {
        var files = [], rejFiles = [], items = evt.dataTransfer.items, processing = 0;

        function addFile(file) {
            if (validate(scope, $parse, attr, file, evt)) {
                files.push(file);
            } else {
                rejFiles.push(file);
            }
        }

        if (items && items.length > 0 && $location.protocol() != 'file') {
            for (var i = 0; i < items.length; i++) {
                if (items[i].webkitGetAsEntry && items[i].webkitGetAsEntry() && items[i].webkitGetAsEntry().isDirectory) {
                    var entry = items[i].webkitGetAsEntry();
                    if (entry.isDirectory && !allowDir) {
                        continue;
                    }
                    if (entry != null) {
                        traverseFileTree(files, entry);
                    }
                } else {
                    var f = items[i].getAsFile();
                    if (f != null) addFile(f);
                }
                if (!multiple && files.length > 0) break;
            }
        } else {
            var fileList = evt.dataTransfer.files;
            if (fileList != null) {
                for (var i = 0; i < fileList.length; i++) {
                    addFile(fileList.item(i));
                    if (!multiple && files.length > 0) break;
                }
            }
        }
        var delays = 0;
        (function waitForProcess(delay) {
            $timeout(function () {
                if (!processing) {
                    if (!multiple && files.length > 1) {
                        i = 0;
                        while (files[i].type == 'directory') i++;
                        files = [files[i]];
                    }
                    callback(files, rejFiles);
                } else {
                    if (delays++ * 10 < 20 * 1000) {
                        waitForProcess(10);
                    }
                }
            }, delay || 0)
        })();

        function traverseFileTree(files, entry, path) {
            if (entry != null) {
                if (entry.isDirectory) {
                    var filePath = (path || '') + entry.name;
                    addFile({name: entry.name, type: 'directory', path: filePath});
                    var dirReader = entry.createReader();
                    var entries = [];
                    processing++;
                    var readEntries = function () {
                        dirReader.readEntries(function (results) {
                            try {
                                if (!results.length) {
                                    for (var i = 0; i < entries.length; i++) {
                                        traverseFileTree(files, entries[i], (path ? path : '') + entry.name + '/');
                                    }
                                    processing--;
                                } else {
                                    entries = entries.concat(Array.prototype.slice.call(results || [], 0));
                                    readEntries();
                                }
                            } catch (e) {
                                processing--;
                                console.error(e);
                            }
                        }, function () {
                            processing--;
                        });
                    };
                    readEntries();
                } else {
                    processing++;
                    entry.file(function (file) {
                        try {
                            processing--;
                            file.path = (path ? path : '') + file.name;
                            addFile(file);
                        } catch (e) {
                            processing--;
                            console.error(e);
                        }
                    }, function () {
                        processing--;
                    });
                }
            }
        }
    }
}

ngFileUpload.directive('ngfSrc', ['$parse', '$timeout', function ($parse, $timeout) {
	return {
		restrict: 'AE',
		link: function (scope, elem, attr, file) {
			if (window.FileReader) {
				scope.$watch(attr.ngfSrc, function(file) {
					if (file) {
						$timeout(function() {
							var fileReader = new FileReader();
							fileReader.readAsDataURL(file);
							fileReader.onload = function(e) {
								$timeout(function() {
									elem.attr('src', e.target.result);
								});
							}
						});
					} else {
						elem.attr('src', '');
					}
				});
			}
		}
	}
}]);

function dropAvailable() {
    var div = document.createElement('div');
    return ('draggable' in div) && ('ondrop' in div);
}

function updateModel($parse, $timeout, scope, ngModel, attr, fileChange, files, rejFiles, evt, noDelay) {
    function update() {
        if (ngModel) {
            $parse(attr.ngModel).assign(scope, files);
            $timeout(function () {
                ngModel && ngModel.$setViewValue(files != null && files.length == 0 ? null : files);
            });
        }
        if (attr.ngModelRejected) {
            $parse(attr.ngModelRejected).assign(scope, rejFiles);
        }
        if (fileChange) {
            $parse(fileChange)(scope, {
                $files: files,
                $rejectedFiles: rejFiles,
                $event: evt
            });

        }
    }
    if (noDelay) {
        update();
    } else {
        $timeout(function () {
            update();
        });
    }
}

function validate(scope, $parse, attr, file, evt) {
    var accept = $parse(attr.ngfAccept);
    var fileSizeMax = $parse(attr.ngfMaxSize)(scope) || 9007199254740991;
    var fileSizeMin = $parse(attr.ngfMinSize)(scope) || -1;
    var val = accept(scope, {$file: file, $event: evt}), match = false;
    if (val != null && angular.isString(val)) {
        var regexp = new RegExp(globStringToRegex(val), 'gi');
        match = (file.type != null && file.type.match(regexp)) ||
        		(file.name != null && file.name.match(regexp));
    }
    return (val == null || match) && (file.size == null || (file.size < fileSizeMax && file.size > fileSizeMin));
}

function globStringToRegex(str) {
    if (str.length > 2 && str[0] === '/' && str[str.length - 1] === '/') {
        return str.substring(1, str.length - 1);
    }
    var split = str.split(','), result = '';
    if (split.length > 1) {
        for (var i = 0; i < split.length; i++) {
            result += '(' + globStringToRegex(split[i]) + ')';
            if (i < split.length - 1) {
                result += '|'
            }
        }
    } else {
        if (str.indexOf('.') == 0) {
            str = '*' + str;
        }
        result = '^' + str.replace(new RegExp('[.\\\\+*?\\[\\^\\]$(){}=!<>|:\\' + '-]', 'g'), '\\$&') + '$';
        result = result.replace(/\\\*/g, '.*').replace(/\\\?/g, '.');
    }
    return result;
}

})();

/**!
 * AngularJS file upload/drop directive and service with progress and abort
 * FileAPI Flash shim for old browsers not supporting FormData 
 * @author  Danial  <danial.farid@gmail.com>
 * @version 4.1.0
 */

(function() {

var hasFlash = function() {
	try {
	  var fo = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
	  if (fo) return true;
	} catch(e) {
	  if (navigator.mimeTypes['application/x-shockwave-flash'] != undefined) return true;
	}
	return false;
}

function patchXHR(fnName, newFn) {
	window.XMLHttpRequest.prototype[fnName] = newFn(window.XMLHttpRequest.prototype[fnName]);
};

if ((window.XMLHttpRequest && !window.FormData) || (window.FileAPI && FileAPI.forceLoad)) {
	var initializeUploadListener = function(xhr) {
		if (!xhr.__listeners) {
			if (!xhr.upload) xhr.upload = {};
			xhr.__listeners = [];
			var origAddEventListener = xhr.upload.addEventListener;
			xhr.upload.addEventListener = function(t, fn, b) {
				xhr.__listeners[t] = fn;
				origAddEventListener && origAddEventListener.apply(this, arguments);
			};
		}
	}
	
	patchXHR('open', function(orig) {
		return function(m, url, b) {
			initializeUploadListener(this);
			this.__url = url;
			try {
				orig.apply(this, [m, url, b]);
			} catch (e) {
				if (e.message.indexOf('Access is denied') > -1) {
					this.__origError = e;
					orig.apply(this, [m, '_fix_for_ie_crossdomain__', b]);
				}
			}
		}
	});

	patchXHR('getResponseHeader', function(orig) {
		return function(h) {
			return this.__fileApiXHR && this.__fileApiXHR.getResponseHeader ? this.__fileApiXHR.getResponseHeader(h) : (orig == null ? null : orig.apply(this, [h]));
		};
	});

	patchXHR('getAllResponseHeaders', function(orig) {
		return function() {
			return this.__fileApiXHR && this.__fileApiXHR.getAllResponseHeaders ? this.__fileApiXHR.getAllResponseHeaders() : (orig == null ? null : orig.apply(this));
		}
	});

	patchXHR('abort', function(orig) {
		return function() {
			return this.__fileApiXHR && this.__fileApiXHR.abort ? this.__fileApiXHR.abort() : (orig == null ? null : orig.apply(this));
		}
	});

	patchXHR('setRequestHeader', function(orig) {
		return function(header, value) {
			if (header === '__setXHR_') {
				initializeUploadListener(this);
				var val = value(this);
				// fix for angular < 1.2.0
				if (val instanceof Function) {
					val(this);
				}
			} else {
				this.__requestHeaders = this.__requestHeaders || {};
				this.__requestHeaders[header] = value;
				orig.apply(this, arguments);
			}
		}
	});
	
	function redefineProp(xhr, prop, fn) {
		try {
			Object.defineProperty(xhr, prop, {get: fn});
		} catch (e) {/*ignore*/}
	}

	patchXHR('send', function(orig) {
		return function() {
			var xhr = this;
			if (arguments[0] && arguments[0].__isFileAPIShim) {
				var formData = arguments[0];
				var config = {
					url: xhr.__url,
					jsonp: false, //removes the callback form param
					cache: true, //removes the ?fileapiXXX in the url
					complete: function(err, fileApiXHR) {
						xhr.__completed = true;
						if (!err && xhr.__listeners['load']) 
							xhr.__listeners['load']({type: 'load', loaded: xhr.__loaded, total: xhr.__total, target: xhr, lengthComputable: true});
						if (!err && xhr.__listeners['loadend']) 
							xhr.__listeners['loadend']({type: 'loadend', loaded: xhr.__loaded, total: xhr.__total, target: xhr, lengthComputable: true});
						if (err === 'abort' && xhr.__listeners['abort']) 
							xhr.__listeners['abort']({type: 'abort', loaded: xhr.__loaded, total: xhr.__total, target: xhr, lengthComputable: true});
						if (fileApiXHR.status !== undefined) redefineProp(xhr, 'status', function() {return (fileApiXHR.status == 0 && err && err !== 'abort') ? 500 : fileApiXHR.status});
						if (fileApiXHR.statusText !== undefined) redefineProp(xhr, 'statusText', function() {return fileApiXHR.statusText});
						redefineProp(xhr, 'readyState', function() {return 4});
						if (fileApiXHR.response !== undefined) redefineProp(xhr, 'response', function() {return fileApiXHR.response});
						var resp = fileApiXHR.responseText || (err && fileApiXHR.status == 0 && err !== 'abort' ? err : undefined);
						redefineProp(xhr, 'responseText', function() {return resp});
						redefineProp(xhr, 'response', function() {return resp});
						if (err) redefineProp(xhr, 'err', function() {return err});
						xhr.__fileApiXHR = fileApiXHR;
						if (xhr.onreadystatechange) xhr.onreadystatechange();
						if (xhr.onload) xhr.onload();
					},
					fileprogress: function(e) {
						e.target = xhr;
						xhr.__listeners['progress'] && xhr.__listeners['progress'](e);
						xhr.__total = e.total;
						xhr.__loaded = e.loaded;
						if (e.total === e.loaded) {
							// fix flash issue that doesn't call complete if there is no response text from the server  
							var _this = this
							setTimeout(function() {
								if (!xhr.__completed) {
									xhr.getAllResponseHeaders = function(){};
									_this.complete(null, {status: 204, statusText: 'No Content'});
								}
							}, FileAPI.noContentTimeout || 10000);
						}
					},
					headers: xhr.__requestHeaders
				}
				config.data = {};
				config.files = {}
				for (var i = 0; i < formData.data.length; i++) {
					var item = formData.data[i];
					if (item.val != null && item.val.name != null && item.val.size != null && item.val.type != null) {
						config.files[item.key] = item.val;
					} else {
						config.data[item.key] = item.val;
					}
				}

				setTimeout(function() {
					if (!hasFlash()) {
						throw 'Adode Flash Player need to be installed. To check ahead use "FileAPI.hasFlash"';
					}
					xhr.__fileApiXHR = FileAPI.upload(config);
				}, 1);
			} else {
				if (this.__origError) {
					throw this.__origError;
				}
				orig.apply(xhr, arguments);
			}
		}
	});
	window.XMLHttpRequest.__isFileAPIShim = true;

	function isInputTypeFile(elem) {
		return elem[0].tagName.toLowerCase() === 'input' && elem.attr('type') && elem.attr('type').toLowerCase() === 'file';
	}
	
	window.FormData = FormData = function() {
		return {
			append: function(key, val, name) {
				if (val.__isFileAPIBlobShim) {
					val = val.data[0];
				}
				this.data.push({
					key: key,
					val: val,
					name: name
				});
			},
			data: [],
			__isFileAPIShim: true
		};
	};

	window.Blob = Blob = function(b) {
		return {
			data: b,
			__isFileAPIBlobShim: true
		};
	};

	(function () {
		//load FileAPI
		if (!window.FileAPI) {
			window.FileAPI = {};
		}
		if (FileAPI.forceLoad) {
			FileAPI.html5 = false;
		}
		
		if (!FileAPI.upload) {
			var jsUrl, basePath, script = document.createElement('script'), allScripts = document.getElementsByTagName('script'), i, index, src;
			if (window.FileAPI.jsUrl) {
				jsUrl = window.FileAPI.jsUrl;
			} else if (window.FileAPI.jsPath) {
				basePath = window.FileAPI.jsPath;
			} else {
				for (i = 0; i < allScripts.length; i++) {
					src = allScripts[i].src;
					index = src.search(/\/ng\-file\-upload[\-a-zA-z0-9\.]*\.js/)
					if (index > -1) {
						basePath = src.substring(0, index + 1);
						break;
					}
				}
			}

			if (FileAPI.staticPath == null) FileAPI.staticPath = basePath;
			script.setAttribute('src', jsUrl || basePath + 'FileAPI.min.js');
			document.getElementsByTagName('head')[0].appendChild(script);
			FileAPI.hasFlash = hasFlash();
		}
	})();
	
	FileAPI.ngfFixIE = function(elem, createFileElemFn, bindAttr, changeFn, resetModel) {
		if (!hasFlash()) {
			throw 'Adode Flash Player need to be installed. To check ahead use "FileAPI.hasFlash"';
		}
		var makeFlashInput = function(evt) {
			if (elem.attr('disabled')) {
				elem.__ngf_elem__.removeClass('js-fileapi-wrapper');
			} else {
				var fileElem = elem.__ngf_elem__;
				if (!fileElem) {
					fileElem = elem.__ngf_elem__ = createFileElemFn();
					fileElem.addClass('js-fileapi-wrapper');
					if (!isInputTypeFile(elem)) {
//						if (fileElem.parent().css('position') === '' || fileElem.parent().css('position') === 'static') {
//							fileElem.parent().css('position', 'relative');
//						}
//						elem.parent()[0].insertBefore(fileElem[0], elem[0]);
//						elem.css('overflow', 'hidden');
					}
					setTimeout(function() {
						fileElem.bind('mouseenter', makeFlashInput);
					}, 10);
					fileElem.bind('change', function(evt) {
				    	fileApiChangeFn.apply(this, [evt]);
						changeFn.apply(this, [evt]);
//						alert('change' +  evt);
					});
				} else {
					bindAttr(elem.__ngf_elem__);
				}
				if (!isInputTypeFile(elem)) {
					fileElem.css('position', 'absolute')
							.css('top', getOffset(elem[0]).top + 'px').css('left', getOffset(elem[0]).left + 'px')
							.css('width', elem[0].offsetWidth + 'px').css('height', elem[0].offsetHeight + 'px')
							.css('filter', 'alpha(opacity=0)').css('display', elem.css('display'))
							.css('overflow', 'hidden').css('z-index', '900000');
				}
			}
			function getOffset(obj) {
			    var left, top;
			    left = top = 0;
			    if (obj.offsetParent) {
			        do {
			            left += obj.offsetLeft;
			            top  += obj.offsetTop;
			        } while (obj = obj.offsetParent);
			    }
			    return {
			        left : left,
			        top : top
			    };
			};
		};

		elem.bind('mouseenter', makeFlashInput);

		var fileApiChangeFn = function(evt) {
			var files = FileAPI.getFiles(evt);
			//just a double check for #233
			for (var i = 0; i < files.length; i++) {
				if (files[i].size === undefined) files[i].size = 0;
				if (files[i].name === undefined) files[i].name = 'file';
				if (files[i].type === undefined) files[i].type = 'undefined';
			}
			if (!evt.target) {
				evt.target = {};
			}
			evt.target.files = files;
			// if evt.target.files is not writable use helper field
			if (evt.target.files != files) {
				evt.__files_ = files;
			}
			(evt.__files_ || evt.target.files).item = function(i) {
				return (evt.__files_ || evt.target.files)[i] || null;
			};
		};
	};

	FileAPI.disableFileInput = function(elem, disable) {
		if (disable) {
			elem.removeClass('js-fileapi-wrapper')
		} else {
			elem.addClass('js-fileapi-wrapper');
		}
	};
}


if (!window.FileReader) {
	window.FileReader = function() {
		var _this = this, loadStarted = false;
		this.listeners = {};
		this.addEventListener = function(type, fn) {
			_this.listeners[type] = _this.listeners[type] || [];
			_this.listeners[type].push(fn);
		};
		this.removeEventListener = function(type, fn) {
			_this.listeners[type] && _this.listeners[type].splice(_this.listeners[type].indexOf(fn), 1);
		};
		this.dispatchEvent = function(evt) {
			var list = _this.listeners[evt.type];
			if (list) {
				for (var i = 0; i < list.length; i++) {
					list[i].call(_this, evt);
				}
			}
		};
		this.onabort = this.onerror = this.onload = this.onloadstart = this.onloadend = this.onprogress = null;

		var constructEvent = function(type, evt) {
			var e = {type: type, target: _this, loaded: evt.loaded, total: evt.total, error: evt.error};
			if (evt.result != null) e.target.result = evt.result;
			return e;
		};
		var listener = function(evt) {
			if (!loadStarted) {
				loadStarted = true;
				_this.onloadstart && _this.onloadstart(constructEvent('loadstart', evt));
			}
			if (evt.type === 'load') {
				_this.onloadend && _this.onloadend(constructEvent('loadend', evt));
				var e = constructEvent('load', evt);
				_this.onload && _this.onload(e);
				_this.dispatchEvent(e);
			} else if (evt.type === 'progress') {
				var e = constructEvent('progress', evt);
				_this.onprogress && _this.onprogress(e);
				_this.dispatchEvent(e);
			} else {
				var e = constructEvent('error', evt);
				_this.onerror && _this.onerror(e);
				_this.dispatchEvent(e);
			}
		};
		this.readAsArrayBuffer = function(file) {
			FileAPI.readAsBinaryString(file, listener);
		}
		this.readAsBinaryString = function(file) {
			FileAPI.readAsBinaryString(file, listener);
		}
		this.readAsDataURL = function(file) {
			FileAPI.readAsDataURL(file, listener);
		}
		this.readAsText = function(file) {
			FileAPI.readAsText(file, listener);
		}
	}
}
})();
