diff --git a/demo/demo.html b/demo/demo.html new file mode 100644 index 0000000..8032545 --- /dev/null +++ b/demo/demo.html @@ -0,0 +1,8 @@ + + + + + + Demo + + diff --git a/demo/vcs-maker.js b/demo/vcs-maker.js new file mode 100644 index 0000000..171a5b5 --- /dev/null +++ b/demo/vcs-maker.js @@ -0,0 +1,412 @@ + + + +// FileSaver.js +var BlobBuilder = BlobBuilder || self.WebKitBlobBuilder || self.MozBlobBuilder || self.MSBlobBuilder || (function(view) { + if (navigator.userAgent.indexOf('MSIE') > -1 && navigator.userAgent.indexOf('MSIE 10') == -1) { + console.log('Unsupported Browser'); + return; + }; + + "use strict"; + var get_class = function(object) { + return Object.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1]; + } + , FakeBlobBuilder = function(){ + this.data = []; + } + , FakeBlob = function(data, type, encoding) { + this.data = data; + this.size = data.length; + this.type = type; + this.encoding = encoding; + } + , FBB_proto = FakeBlobBuilder.prototype + , FB_proto = FakeBlob.prototype + , FileReaderSync = view.FileReaderSync + , FileException = function(type) { + this.code = this[this.name = type]; + } + , file_ex_codes = ( + "NOT_FOUND_ERR SECURITY_ERR ABORT_ERR NOT_READABLE_ERR ENCODING_ERR " + + "NO_MODIFICATION_ALLOWED_ERR INVALID_STATE_ERR SYNTAX_ERR" + ).split(" ") + , file_ex_code = file_ex_codes.length + , real_URL = view.URL || view.webkitURL || view + , real_create_object_URL = real_URL.createObjectURL + , real_revoke_object_URL = real_URL.revokeObjectURL + , URL = real_URL + , btoa = view.btoa + , atob = view.atob + , can_apply_typed_arrays = false + , can_apply_typed_arrays_test = function(pass) { + can_apply_typed_arrays = !pass; + } + + , ArrayBuffer = view.ArrayBuffer + , Uint8Array = view.Uint8Array + ; + FakeBlobBuilder.fake = FB_proto.fake = true; + while (file_ex_code--) { + FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1; + } + try { + if (Uint8Array) { + can_apply_typed_arrays_test.apply(0, new Uint8Array(1)); + } + } catch (ex) {} + if (!real_URL.createObjectURL) { + URL = view.URL = {}; + } + URL.createObjectURL = function(blob) { + var + type = blob.type + , data_URI_header + ; + if (type === null) { + type = "application/octet-stream"; + } + if (blob instanceof FakeBlob) { + data_URI_header = "data:" + type; + if (blob.encoding === "base64") { + return data_URI_header + ";base64," + blob.data; + } else if (blob.encoding === "URI") { + return data_URI_header + "," + decodeURIComponent(blob.data); + } if (btoa) { + return data_URI_header + ";base64," + btoa(blob.data); + } else { + return data_URI_header + "," + encodeURIComponent(blob.data); + } + } else if (real_create_object_URL) { + return real_create_object_URL.call(real_URL, blob); + } + }; + URL.revokeObjectURL = function(object_URL) { + if (object_URL.substring(0, 5) !== "data:" && real_revoke_object_URL) { + real_revoke_object_URL.call(real_URL, object_URL); + } + }; + FBB_proto.append = function(data/*, endings*/) { + var bb = this.data; + // decode data to a binary string + if (Uint8Array && data instanceof ArrayBuffer) { + if (can_apply_typed_arrays) { + bb.push(String.fromCharCode.apply(String, new Uint8Array(data))); + } else { + var + str = "" + , buf = new Uint8Array(data) + , i = 0 + , buf_len = buf.length + ; + for (; i < buf_len; i++) { + str += String.fromCharCode(buf[i]); + } + } + } else if (get_class(data) === "Blob" || get_class(data) === "File") { + if (FileReaderSync) { + var fr = new FileReaderSync; + bb.push(fr.readAsBinaryString(data)); + } else { + // async FileReader won't work as BlobBuilder is sync + throw new FileException("NOT_READABLE_ERR"); + } + } else if (data instanceof FakeBlob) { + if (data.encoding === "base64" && atob) { + bb.push(atob(data.data)); + } else if (data.encoding === "URI") { + bb.push(decodeURIComponent(data.data)); + } else if (data.encoding === "raw") { + bb.push(data.data); + } + } else { + if (typeof data !== "string") { + data += ""; // convert unsupported types to strings + } + // decode UTF-16 to binary string + bb.push(unescape(encodeURIComponent(data))); + } + }; + FBB_proto.getBlob = function(type) { + if (!arguments.length) { + type = null; + } + return new FakeBlob(this.data.join(""), type, "raw"); + }; + FBB_proto.toString = function() { + return "[object BlobBuilder]"; + }; + FB_proto.slice = function(start, end, type) { + var args = arguments.length; + if (args < 3) { + type = null; + } + return new FakeBlob( + this.data.slice(start, args > 1 ? end : this.data.length) + , type + , this.encoding + ); + }; + FB_proto.toString = function() { + return "[object Blob]"; + }; + return FakeBlobBuilder; + }(self)); + + +// Blob.js +var saveAs = saveAs + || (navigator.msSaveOrOpenBlob && navigator.msSaveOrOpenBlob.bind(navigator)) + || (function(view) { + if (navigator.userAgent.indexOf('MSIE') != -1 && navigator.userAgent.indexOf('MSIE 10') == -1) { + console.log('Unsupported Browser'); + return; + }; + "use strict"; + var + doc = view.document + // only get URL when necessary in case BlobBuilder.js hasn't overridden it yet + , get_URL = function() { + return view.URL || view.webkitURL || view; + } + , URL = view.URL || view.webkitURL || view + , save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a") + , can_use_save_link = !view.externalHost && "download" in save_link + , click = function(node) { + var event = doc.createEvent("MouseEvents"); + event.initMouseEvent( + "click", true, false, view, 0, 0, 0, 0, 0 + , false, false, false, false, 0, null + ); + node.dispatchEvent(event); + } + , webkit_req_fs = view.webkitRequestFileSystem + , req_fs = view.requestFileSystem || webkit_req_fs || view.mozRequestFileSystem + , throw_outside = function (ex) { + (view.setImmediate || view.setTimeout)(function() { + throw ex; + }, 0); + } + , force_saveable_type = "application/octet-stream" + , fs_min_size = 0 + , deletion_queue = [] + , process_deletion_queue = function() { + var i = deletion_queue.length; + while (i--) { + var file = deletion_queue[i]; + if (typeof file === "string") { // file is an object URL + URL.revokeObjectURL(file); + } else { // file is a File + file.remove(); + } + } + deletion_queue.length = 0; // clear queue + } + , dispatch = function(filesaver, event_types, event) { + event_types = [].concat(event_types); + var i = event_types.length; + while (i--) { + var listener = filesaver["on" + event_types[i]]; + if (typeof listener === "function") { + try { + listener.call(filesaver, event || filesaver); + } catch (ex) { + throw_outside(ex); + } + } + } + } + , FileSaver = function(blob, name) { + // First try a.download, then web filesystem, then object URLs + var + filesaver = this + , type = blob.type + , blob_changed = false + , object_url + , target_view + , get_object_url = function() { + var object_url = get_URL().createObjectURL(blob); + deletion_queue.push(object_url); + return object_url; + } + , dispatch_all = function() { + dispatch(filesaver, "writestart progress write writeend".split(" ")); + } + // on any filesys errors revert to saving with object URLs + , fs_error = function() { + // don't create more object URLs than needed + if (blob_changed || !object_url) { + object_url = get_object_url(blob); + } + if (target_view) { + target_view.location.href = object_url; + } else { + window.open(object_url, "_blank"); + } + filesaver.readyState = filesaver.DONE; + dispatch_all(); + } + , abortable = function(func) { + return function() { + if (filesaver.readyState !== filesaver.DONE) { + return func.apply(this, arguments); + } + }; + } + , create_if_not_found = {create: true, exclusive: false} + , slice + ; + filesaver.readyState = filesaver.INIT; + if (!name) { + name = "download"; + } + if (can_use_save_link) { + object_url = get_object_url(blob); + save_link.href = object_url; + save_link.download = name; + click(save_link); + filesaver.readyState = filesaver.DONE; + dispatch_all(); + return; + } + // Object and web filesystem URLs have a problem saving in Google Chrome when + // viewed in a tab, so I force save with application/octet-stream + // http://code.google.com/p/chromium/issues/detail?id=91158 + if (view.chrome && type && type !== force_saveable_type) { + slice = blob.slice || blob.webkitSlice; + blob = slice.call(blob, 0, blob.size, force_saveable_type); + blob_changed = true; + } + // Since I can't be sure that the guessed media type will trigger a download + // in WebKit, I append .download to the filename. + // https://bugs.webkit.org/show_bug.cgi?id=65440 + if (webkit_req_fs && name !== "download") { + name += ".download"; + } + if (type === force_saveable_type || webkit_req_fs) { + target_view = view; + } + if (!req_fs) { + fs_error(); + return; + } + fs_min_size += blob.size; + req_fs(view.TEMPORARY, fs_min_size, abortable(function(fs) { + fs.root.getDirectory("saved", create_if_not_found, abortable(function(dir) { + var save = function() { + dir.getFile(name, create_if_not_found, abortable(function(file) { + file.createWriter(abortable(function(writer) { + writer.onwriteend = function(event) { + target_view.location.href = file.toURL(); + deletion_queue.push(file); + filesaver.readyState = filesaver.DONE; + dispatch(filesaver, "writeend", event); + }; + writer.onerror = function() { + var error = writer.error; + if (error.code !== error.ABORT_ERR) { + fs_error(); + } + }; + "writestart progress write abort".split(" ").forEach(function(event) { + writer["on" + event] = filesaver["on" + event]; + }); + writer.write(blob); + filesaver.abort = function() { + writer.abort(); + filesaver.readyState = filesaver.DONE; + }; + filesaver.readyState = filesaver.WRITING; + }), fs_error); + }), fs_error); + }; + dir.getFile(name, {create: false}, abortable(function(file) { + // delete file if it already exists + file.remove(); + save(); + }), abortable(function(ex) { + if (ex.code === ex.NOT_FOUND_ERR) { + save(); + } else { + fs_error(); + } + })); + }), fs_error); + }), fs_error); + } + , FS_proto = FileSaver.prototype + , saveAs = function(blob, name) { + return new FileSaver(blob, name); + } + ; + FS_proto.abort = function() { + var filesaver = this; + filesaver.readyState = filesaver.DONE; + dispatch(filesaver, "abort"); + }; + FS_proto.readyState = FS_proto.INIT = 0; + FS_proto.WRITING = 1; + FS_proto.DONE = 2; + + FS_proto.error = + FS_proto.onwritestart = + FS_proto.onprogress = + FS_proto.onwrite = + FS_proto.onabort = + FS_proto.onerror = + FS_proto.onwriteend = + null; + view.addEventListener("unload", process_deletion_queue, false); + return saveAs; +}(self)); + + + +/* The meat and potatoes! */ +download_vcs = function(filename, subject, description, location, begin, end) { + if (navigator.userAgent.indexOf('MSIE') > -1 && navigator.userAgent.indexOf('MSIE 10') == -1) { + console.log('Unsupported Browser'); + return; + }; + + var subject = subject; + var description = description; + var address = location; + var start_date = new Date(begin); + var end_date = new Date(end); + + var start_year = ("0000" + (start_date.getFullYear().toString())).slice(-4); + var start_month = ("00" + (start_date.getMonth().toString())).slice(-2); + var start_day = ("00" + (start_date.getDate().toString())).slice(-2); + var start = start_year + start_month + start_day; + + var end_year = ("0000" + (end_date.getFullYear().toString())).slice(-4); + var end_month = ("00" + (end_date.getMonth().toString())).slice(-2); + var end_day = ("00" + ((end_date.getDate()+1).toString())).slice(-2); + var end = end_year + end_month + end_day; + + var calendar = [ + "BEGIN:VCALENDAR", + "VERSION:2.0", + "BEGIN:VEVENT", + "CLASS:PUBLIC", + "DESCRIPTION:"+description, + "DTSTART;VALUE=DATE:"+start, + "DTEND;VALUE=DATE:"+end, + "LOCATION:"+address, + "SUMMARY;LANGUAGE=en-us:"+subject, + "TRANSP:TRANSPARENT", + "END:VEVENT", + "END:VCALENDAR" + ].join('\n'); + + if (navigator.userAgent.indexOf('MSIE 10') > -1) { // chrome or firefox + var blob = new Blob([calendar]); + } + else { // ie + var bb = new BlobBuilder(); + bb.append(calendar); + var blob = bb.getBlob("text/x-vCalendar;charset=" + document.characterSet); + } + saveAs(blob, filename+".vcs"); +}