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function template(text, data) {
var render;
var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
var settings = {
evaluate : /<%([\s\S]+?)%>/g,
interpolate : /<%=([\s\S]+?)%>/g
};
// Combine delimiters into one regular expression via alternation.
var matcher = new RegExp([
(settings.interpolate || noMatch).source,
(settings.evaluate || noMatch).source
].join('|') + '|$', 'g');
// Compile the template source, escaping string literals appropriately.
var index = 0;
var source = "__p+='";
text.replace(matcher, function(match, interpolate, evaluate, offset) {
source += text.slice(index, offset)
.replace(escaper, function(match) { return '\\' + escapes[match]; });
if (interpolate) {
source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
}
if (evaluate) {
source += "';\n" + evaluate + "\n__p+='";
}
index = offset + match.length;
return match;
});
source += "';\n";
source = "var __t,__p='',__j=Array.prototype.join," +
"print=function(){__p+=__j.call(arguments,'');};\n" +
source + "return __p;\n";
try {
render = new Function('obj', source);
} catch (e) {
e.source = source;
throw e;
}
if (data) return render(data);
var template = function(data) {
return render.call(this, data);
};
// Provide the compiled function source as a convenience for precompilation.
template.source = 'function(obj){\n' + source + '}';
return template;
}
var tests = {
filereader: typeof FileReader != 'undefined',
dnd: 'draggable' in document.createElement('span'),
formdata: !!window.FormData,
progress: "upload" in new XMLHttpRequest
};
var UploadTemplate = template(
'<div>' +
'<label class="dnd-overwrite">Overwrite files ' +
'<input type="checkbox" name="overwrite" id="overwrite-check" checked />' +
'</label>' +
'<div id="dnd-upload"></div>' +
'</div>'
);
var oldOnReady = document.onreadystatechange;
document.onreadystatechange = function() {
if (document.readyState !== "complete") {
return;
}
if (typeof oldOnReady === "function") {
oldOnReady();
}
if (document.title.indexOf("Attachments for ") == -1) {
return;
}
for (key in tests) {
if (tests[key] !== true) {
return;
}
}
document.getElementsByTagName("h2")[0].insertAdjacentHTML('afterend', UploadTemplate());
var holder = document.getElementById('dnd-upload');
holder.ondragover = function () {
this.className = 'hover';
return false;
};
holder.ondragend = function () {
this.className = '';
return false;
};
holder.ondrop = function (e) {
this.className = '';
e.preventDefault();
readfiles(e.dataTransfer.files);
}
};
function createElement(tag, attributes, innerHTML) {
var element = document.createElement(tag);
for (key in attributes) {
element.setAttribute(key, attributes[key]);
}
if (typeof innerHTML !== "undefined") {
element.innerHTML = innerHTML;
}
return element;
};
function postFile(file) {
var size = file.size;
var units = ['G', 'M', 'K', 'B'];
var xhr = new XMLHttpRequest();
var formData = new FormData();
formData.append('ticket', document.getElementsByName("ticket")[0].value);
formData.append('action', 'AttachFile');
formData.append('do', 'upload');
formData.append('file', file);
if (document.getElementById("overwrite-check").checked) {
formData.append('overwrite', '1');
}
while (size >= 1024) {
size = size / 1024 | 0;
units.pop();
}
var progress = createElement('progress', { min: 0, max: 100, value: 0 });
var progContainer = createElement('div', { "class": "progressbar" });
var sizeSpan = createElement("span", { "class": "size" }, size + units[units.length - 1]);
var item = createElement('li');
progContainer.appendChild(progress);
progContainer.appendChild(sizeSpan);
item.appendChild(createElement('span', { "class": "filename" }, file.name));
item.appendChild(progContainer);
document.getElementById("dnd-upload").appendChild(item);
xhr.open('POST', window.location.pathname);
xhr.onload = function() { progress.value = 100; };
xhr.upload.onprogress = function (event) {
if (!event.lengthComputable) { return; }
progress.value = (event.loaded / event.total * 100 | 0);
}
xhr.send(formData);
}
function readfiles(files) {
for (var i = 0; i < files.length; i++) {
postFile(files[i]);
}
}
|
