alpaca
Version:
Alpaca provides the easiest and fastest way to generate interactive forms for the web and mobile devices. It runs simply as HTML5 or more elaborately using Bootstrap, jQuery Mobile or jQuery UI. Alpaca uses Handlebars to process JSON schema and provide
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JavaScript
/*
* jQuery File Upload AngularJS Plugin
* https://github.com/blueimp/jQuery-File-Upload
*
* Copyright 2013, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/MIT
*/
/* jshint nomen:false */
/* global define, angular */
(function (factory) {
'use strict';
if (typeof define === 'function' && define.amd) {
// Register as an anonymous AMD module:
define([
'jquery',
'angular',
'./jquery.fileupload-image',
'./jquery.fileupload-audio',
'./jquery.fileupload-video',
'./jquery.fileupload-validate'
], factory);
} else {
factory();
}
}(function () {
'use strict';
angular.module('blueimp.fileupload', [])
// The fileUpload service provides configuration options
// for the fileUpload directive and default handlers for
// File Upload events:
.provider('fileUpload', function () {
var scopeEvalAsync = function (expression) {
var scope = angular.element(this)
.fileupload('option', 'scope');
// Schedule a new $digest cycle if not already inside of one
// and evaluate the given expression:
scope.$evalAsync(expression);
},
addFileMethods = function (scope, data) {
var files = data.files,
file = files[0];
angular.forEach(files, function (file, index) {
file._index = index;
file.$state = function () {
return data.state();
};
file.$processing = function () {
return data.processing();
};
file.$progress = function () {
return data.progress();
};
file.$response = function () {
return data.response();
};
});
file.$submit = function () {
if (!file.error) {
return data.submit();
}
};
file.$cancel = function () {
return data.abort();
};
},
$config;
$config = this.defaults = {
handleResponse: function (e, data) {
var files = data.result && data.result.files;
if (files) {
data.scope.replace(data.files, files);
} else if (data.errorThrown ||
data.textStatus === 'error') {
data.files[0].error = data.errorThrown ||
data.textStatus;
}
},
add: function (e, data) {
if (e.isDefaultPrevented()) {
return false;
}
var scope = data.scope,
filesCopy = [];
angular.forEach(data.files, function (file) {
filesCopy.push(file);
});
scope.$parent.$applyAsync(function () {
addFileMethods(scope, data);
var method = scope.option('prependFiles') ?
'unshift' : 'push';
Array.prototype[method].apply(scope.queue, data.files);
});
data.process(function () {
return scope.process(data);
}).always(function () {
scope.$parent.$applyAsync(function () {
addFileMethods(scope, data);
scope.replace(filesCopy, data.files);
});
}).then(function () {
if ((scope.option('autoUpload') ||
data.autoUpload) &&
data.autoUpload !== false) {
data.submit();
}
});
},
done: function (e, data) {
if (e.isDefaultPrevented()) {
return false;
}
var that = this;
data.scope.$apply(function () {
data.handleResponse.call(that, e, data);
});
},
fail: function (e, data) {
if (e.isDefaultPrevented()) {
return false;
}
var that = this,
scope = data.scope;
if (data.errorThrown === 'abort') {
scope.clear(data.files);
return;
}
scope.$apply(function () {
data.handleResponse.call(that, e, data);
});
},
stop: scopeEvalAsync,
processstart: scopeEvalAsync,
processstop: scopeEvalAsync,
getNumberOfFiles: function () {
var scope = this.scope;
return scope.queue.length - scope.processing();
},
dataType: 'json',
autoUpload: false
};
this.$get = [
function () {
return {
defaults: $config
};
}
];
})
// Format byte numbers to readable presentations:
.provider('formatFileSizeFilter', function () {
var $config = {
// Byte units following the IEC format
// http://en.wikipedia.org/wiki/Kilobyte
units: [
{size: 1000000000, suffix: ' GB'},
{size: 1000000, suffix: ' MB'},
{size: 1000, suffix: ' KB'}
]
};
this.defaults = $config;
this.$get = function () {
return function (bytes) {
if (!angular.isNumber(bytes)) {
return '';
}
var unit = true,
i = 0,
prefix,
suffix;
while (unit) {
unit = $config.units[i];
prefix = unit.prefix || '';
suffix = unit.suffix || '';
if (i === $config.units.length - 1 || bytes >= unit.size) {
return prefix + (bytes / unit.size).toFixed(2) + suffix;
}
i += 1;
}
};
};
})
// The FileUploadController initializes the fileupload widget and
// provides scope methods to control the File Upload functionality:
.controller('FileUploadController', [
'$scope', '$element', '$attrs', '$window', 'fileUpload',
function ($scope, $element, $attrs, $window, fileUpload) {
var uploadMethods = {
progress: function () {
return $element.fileupload('progress');
},
active: function () {
return $element.fileupload('active');
},
option: function (option, data) {
if (arguments.length === 1) {
return $element.fileupload('option', option);
}
$element.fileupload('option', option, data);
},
add: function (data) {
return $element.fileupload('add', data);
},
send: function (data) {
return $element.fileupload('send', data);
},
process: function (data) {
return $element.fileupload('process', data);
},
processing: function (data) {
return $element.fileupload('processing', data);
}
};
$scope.disabled = !$window.jQuery.support.fileInput;
$scope.queue = $scope.queue || [];
$scope.clear = function (files) {
var queue = this.queue,
i = queue.length,
file = files,
length = 1;
if (angular.isArray(files)) {
file = files[0];
length = files.length;
}
while (i) {
i -= 1;
if (queue[i] === file) {
return queue.splice(i, length);
}
}
};
$scope.replace = function (oldFiles, newFiles) {
var queue = this.queue,
file = oldFiles[0],
i,
j;
for (i = 0; i < queue.length; i += 1) {
if (queue[i] === file) {
for (j = 0; j < newFiles.length; j += 1) {
queue[i + j] = newFiles[j];
}
return;
}
}
};
$scope.applyOnQueue = function (method) {
var list = this.queue.slice(0),
i,
file;
for (i = 0; i < list.length; i += 1) {
file = list[i];
if (file[method]) {
file[method]();
}
}
};
$scope.submit = function () {
this.applyOnQueue('$submit');
};
$scope.cancel = function () {
this.applyOnQueue('$cancel');
};
// Add upload methods to the scope:
angular.extend($scope, uploadMethods);
// The fileupload widget will initialize with
// the options provided via "data-"-parameters,
// as well as those given via options object:
$element.fileupload(angular.extend(
{scope: $scope},
fileUpload.defaults
)).on('fileuploadadd', function (e, data) {
data.scope = $scope;
}).on('fileuploadfail', function (e, data) {
if (data.errorThrown === 'abort') {
return;
}
if (data.dataType &&
data.dataType.indexOf('json') === data.dataType.length - 4) {
try {
data.result = angular.fromJson(data.jqXHR.responseText);
} catch (ignore) {}
}
}).on([
'fileuploadadd',
'fileuploadsubmit',
'fileuploadsend',
'fileuploaddone',
'fileuploadfail',
'fileuploadalways',
'fileuploadprogress',
'fileuploadprogressall',
'fileuploadstart',
'fileuploadstop',
'fileuploadchange',
'fileuploadpaste',
'fileuploaddrop',
'fileuploaddragover',
'fileuploadchunksend',
'fileuploadchunkdone',
'fileuploadchunkfail',
'fileuploadchunkalways',
'fileuploadprocessstart',
'fileuploadprocess',
'fileuploadprocessdone',
'fileuploadprocessfail',
'fileuploadprocessalways',
'fileuploadprocessstop'
].join(' '), function (e, data) {
$scope.$parent.$applyAsync(function () {
if ($scope.$emit(e.type, data).defaultPrevented) {
e.preventDefault();
}
});
}).on('remove', function () {
// Remove upload methods from the scope,
// when the widget is removed:
var method;
for (method in uploadMethods) {
if (uploadMethods.hasOwnProperty(method)) {
delete $scope[method];
}
}
});
// Observe option changes:
$scope.$watch(
$attrs.fileUpload,
function (newOptions) {
if (newOptions) {
$element.fileupload('option', newOptions);
}
}
);
}
])
// Provide File Upload progress feedback:
.controller('FileUploadProgressController', [
'$scope', '$attrs', '$parse',
function ($scope, $attrs, $parse) {
var fn = $parse($attrs.fileUploadProgress),
update = function () {
var progress = fn($scope);
if (!progress || !progress.total) {
return;
}
$scope.num = Math.floor(
progress.loaded / progress.total * 100
);
};
update();
$scope.$watch(
$attrs.fileUploadProgress + '.loaded',
function (newValue, oldValue) {
if (newValue !== oldValue) {
update();
}
}
);
}
])
// Display File Upload previews:
.controller('FileUploadPreviewController', [
'$scope', '$element', '$attrs',
function ($scope, $element, $attrs) {
$scope.$watch(
$attrs.fileUploadPreview + '.preview',
function (preview) {
$element.empty();
if (preview) {
$element.append(preview);
}
}
);
}
])
.directive('fileUpload', function () {
return {
controller: 'FileUploadController',
scope: true
};
})
.directive('fileUploadProgress', function () {
return {
controller: 'FileUploadProgressController',
scope: true
};
})
.directive('fileUploadPreview', function () {
return {
controller: 'FileUploadPreviewController'
};
})
// Enhance the HTML5 download attribute to
// allow drag&drop of files to the desktop:
.directive('download', function () {
return function (scope, elm) {
elm.on('dragstart', function (e) {
try {
e.originalEvent.dataTransfer.setData(
'DownloadURL',
[
'application/octet-stream',
elm.prop('download'),
elm.prop('href')
].join(':')
);
} catch (ignore) {}
});
};
});
}));