/** * This class has methods for file manipulation. */Ext.define('Ext.exporter.File', { singleton: true /** * Save a file locally using the content and name provided. * * Browser compatibility: * * - Firefox 20+: max file size 800 MiB * - Chrome: max file size 345 MiB * - Chrome for Android: max file size n/a * - IE 10+: max file size 600 MiB * - IE < 10: Files are saved as text/html and max file size n/a * - Opera 15+: max file size 345 MiB * - Opera < 15: max file size n/a * - Safari 6.1+: max file size n/a; Blobs may be opened instead of saved sometimes—you may have * to direct your Safari users to manually press ⌘+S to save the file after it is opened. * Using the application/octet-stream MIME type to force downloads can cause issues in Safari. * - Safari < 6: max file size n/a * * @method saveAs * @param {String} content File content * @param {String} filename Name of the file including the extension * @param {String} [charset="UTF-8"] File's charset */ }, function(File){ /* FileSaver.js * A saveAs() & saveTextAs() FileSaver implementation. * 2014-06-24 * * Modify by Brian Chen * Author: Eli Grey, http://eligrey.com * License: X11/MIT * See https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md */ /*global self */ /*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true */ /*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */ var navigator = window.navigator, saveAs = window.saveAs // IE 10+ (native saveAs) || (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob && navigator.msSaveOrOpenBlob.bind(navigator)) // Everyone else || (function (view) { "use strict"; // IE <10 is explicitly unsupported if (typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) { return; } var doc = view.document // only get URL when necessary in case Blob.js hasn't overridden it yet , get_URL = function () { return 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 get_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); saveAs.unload = function () { process_deletion_queue(); view.removeEventListener("unload", process_deletion_queue, false); }; return saveAs; }( typeof self !== "undefined" && self || typeof window !== "undefined" && window || this.content ));// `self` is undefined in Firefox for Android content script context // while `this` is nsIContentFrameMessageManager // with an attribute `content` that corresponds to the window if (typeof module !== "undefined" && module !== null) { module.exports = saveAs; } else if ((typeof define !== "undefined" && define !== null) && (define.amd != null)) { define([], function () { return saveAs; }); } var saveTextAs = window.saveTextAs || (function (textContent, fileName, charset) { fileName = fileName || 'download.txt'; charset = charset || 'utf-8'; textContent = (textContent || '').replace(/\r?\n/g, "\r\n"); if (saveAs && Blob) { var blob = new Blob([textContent], { type: "text/plain;charset=" + charset }); saveAs(blob, fileName); return true; } else {//IE9- var saveTxtWindow = window.frames.saveTxtWindow; if (!saveTxtWindow) { saveTxtWindow = document.createElement('iframe'); saveTxtWindow.id = 'saveTxtWindow'; saveTxtWindow.style.display = 'none'; document.body.insertBefore(saveTxtWindow, null); saveTxtWindow = window.frames.saveTxtWindow; if (!saveTxtWindow) { saveTxtWindow = window.open('', '_temp', 'width=100,height=100'); if (!saveTxtWindow) { window.alert('Sorry, download file could not be created.'); return false; } } } var doc = saveTxtWindow.document; doc.open('text/html', 'replace'); doc.charset = charset; if ( Ext.String.endsWith(fileName, '.htm', true) || Ext.String.endsWith(fileName, '.html', true) ) { doc.close(); doc.body.innerHTML = '\r\n' + textContent + '\r\n'; } else { if (!Ext.String.endsWith(fileName, '.txt', true)) fileName += '.txt'; doc.write(textContent); doc.close(); } var retValue = doc.execCommand('SaveAs', null, fileName); saveTxtWindow.close(); return retValue; } }) File.saveAs = saveTextAs;});