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Upload html5 images to a tree
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(function($) { | |
jQuery.fn.html5_upload = function(options) { | |
var available_events = ['onStart', 'onStartOne', 'onProgress', 'onFinishOne', 'onFinish', 'onError']; | |
var options = jQuery.extend({ | |
onStart: function(event, total) { | |
return true; | |
}, | |
onStartOne: function(event, name, number, total) { | |
return true; | |
}, | |
onProgress: function(event, progress, name, number, total) { | |
}, | |
onFinishOne: function(event, response, name, number, total) { | |
}, | |
onFinish: function(event, total) { | |
}, | |
onError: function(event, name, error) { | |
}, | |
autostart: true, | |
autoclear: true, | |
stopOnFirstError: false, | |
STATUSES: { | |
'STARTED': 'Запуск', | |
'PROGRESS': 'Загрузка', | |
'LOADED': 'Обработка', | |
'FINISHED': 'Завершено' | |
}, | |
setName: function(text) {}, | |
setStatus: function(text) {}, | |
setProgress: function(value) {}, | |
genName: function(file, number, total) { | |
return file + "(" + (number+1) + " из " + total + ")"; | |
}, | |
genStatus: function(progress, finished) { | |
if (finished) { | |
return options.STATUSES['FINISHED']; | |
} | |
if (progress == 0) { | |
return options.STATUSES['STARTED']; | |
} | |
else if (progress == 1) { | |
return options.STATUSES['LOADED']; | |
} | |
else { | |
return options.STATUSES['PROGRESS']; | |
} | |
}, | |
genProgress: function(loaded, total) { | |
return loaded / total; | |
} | |
}, options); | |
function upload() { | |
var files = this.files; | |
var total = files.length; | |
var $this = $(this); | |
if (!$this.triggerHandler('html5_upload.onStart', [total])) { | |
return false; | |
} | |
this.disabled = true; | |
var uploaded = 0; | |
var xhr = this.html5_upload['xhr']; | |
this.html5_upload['continue_after_abort'] = true; | |
function upload_file(number) { | |
if (number == total) { | |
$this.trigger('html5_upload.onFinish', [total]); | |
options.setStatus(options.genStatus(1, true)); | |
$this.attr("disabled", false); | |
if (options.autoclear) { | |
$this.val(""); | |
} | |
return; | |
} | |
var file = files[number]; | |
if (!$this.triggerHandler('html5_upload.onStartOne', [file.fileName, number, total])) { | |
return upload_file(number+1); | |
} | |
options.setStatus(options.genStatus(0)); | |
options.setName(options.genName(file.fileName, number, total)); | |
options.setProgress(options.genProgress(0, file.fileSize)); | |
xhr.upload['onprogress'] = function(rpe) { | |
$this.trigger('html5_upload.onProgress', [rpe.loaded / rpe.total, file.fileName, number, total]); | |
options.setStatus(options.genStatus(rpe.loaded / rpe.total)); | |
options.setProgress(options.genProgress(rpe.loaded, rpe.total)); | |
}; | |
xhr.onload = function(load) { | |
$this.trigger('html5_upload.onFinishOne', [xhr.responseText, file.fileName, number, total]); | |
options.setStatus(options.genStatus(1, true)); | |
options.setProgress(options.genProgress(file.fileSize, file.fileSize)); | |
upload_file(number+1); | |
}; | |
xhr.onabort = function() { | |
if ($this[0].html5_upload['continue_after_abort']) { | |
upload_file(number+1); | |
} | |
else { | |
$this.attr("disabled", false); | |
if (options.autoclear) { | |
$this.val(""); | |
} | |
} | |
}; | |
xhr.onerror = function(e) { | |
$this.trigger('html5_upload.onError', [file.fileName, e]); | |
if (!options.stopOnFirstError) { | |
upload_file(number+1); | |
} | |
}; | |
xhr.open("post", options.url, true); | |
xhr.setRequestHeader("Cache-Control", "no-cache"); | |
xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest"); | |
xhr.setRequestHeader("X-File-Name", file.fileName); | |
xhr.setRequestHeader("X-File-Size", file.fileSize); | |
xhr.setRequestHeader("Content-Type", "multipart/form-data"); | |
xhr.send(file); | |
} | |
upload_file(0); | |
return true; | |
} | |
return this.each(function() { | |
this.html5_upload = { | |
xhr: new XMLHttpRequest(), | |
continue_after_abort: true | |
}; | |
if (options.autostart) { | |
$(this).bind('change', upload); | |
} | |
for (event in available_events) { | |
if (options[available_events[event]]) { | |
$(this).bind("html5_upload."+available_events[event], options[available_events[event]]); | |
} | |
} | |
$(this) | |
.bind('html5_upload.start', upload) | |
.bind('html5_upload.cancelOne', function() { | |
this.html5_upload['xhr'].abort(); | |
}) | |
.bind('html5_upload.cancelAll', function() { | |
this.html5_upload['continue_after_abort'] = false; | |
this.html5_upload['xhr'].abort(); | |
}) | |
.bind('html5_upload.destroy', function() { | |
this.html5_upload['continue_after_abort'] = false; | |
this.xhr.abort(); | |
delete this.html5_upload; | |
$(this).unbind('html5_upload.*').unbind('change', upload); | |
}); | |
}); | |
}; | |
})(jQuery); |
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