chenjingyu
4 years ago
7 changed files with 10209 additions and 33 deletions
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/* FileSaver.js |
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* A saveAs() FileSaver implementation. |
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* 1.3.2 |
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* 2016-06-16 18:25:19 |
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* |
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* By Eli Grey, http://eligrey.com
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* License: MIT |
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* See https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md
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*/ |
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/*global self */ |
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/*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true */ |
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/*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */ |
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var saveAs = saveAs || (function (view) { |
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"use strict"; |
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// IE <10 is explicitly unsupported
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if (typeof view === "undefined" || typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) { |
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return; |
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} |
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var |
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doc = view.document |
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// only get URL when necessary in case Blob.js hasn't overridden it yet
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, get_URL = function () { |
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return view.URL || view.webkitURL || view; |
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} |
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, save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a") |
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, can_use_save_link = "download" in save_link |
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, click = function (node) { |
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var event = new MouseEvent("click"); |
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node.dispatchEvent(event); |
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} |
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, is_safari = /constructor/i.test(view.HTMLElement) |
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, is_chrome_ios = /CriOS\/[\d]+/.test(navigator.userAgent) |
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, throw_outside = function (ex) { |
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(view.setImmediate || view.setTimeout)(function () { |
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throw ex; |
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}, 0); |
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} |
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, force_saveable_type = "application/octet-stream" |
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// the Blob API is fundamentally broken as there is no "downloadfinished" event to subscribe to
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, arbitrary_revoke_timeout = 1000 * 40 // in ms
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, revoke = function (file) { |
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var revoker = function () { |
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if (typeof file === "string") { // file is an object URL
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get_URL().revokeObjectURL(file); |
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} else { // file is a File
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file.remove(); |
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} |
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}; |
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setTimeout(revoker, arbitrary_revoke_timeout); |
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} |
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, dispatch = function (filesaver, event_types, event) { |
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event_types = [].concat(event_types); |
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var i = event_types.length; |
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while (i--) { |
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var listener = filesaver["on" + event_types[i]]; |
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if (typeof listener === "function") { |
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try { |
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listener.call(filesaver, event || filesaver); |
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} catch (ex) { |
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throw_outside(ex); |
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} |
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} |
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} |
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} |
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, auto_bom = function (blob) { |
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// prepend BOM for UTF-8 XML and text/* types (including HTML)
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// note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
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if (/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) { |
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return new Blob([String.fromCharCode(0xFEFF), blob], { type: blob.type }); |
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} |
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return blob; |
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} |
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, FileSaver = function (blob, name, no_auto_bom) { |
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if (!no_auto_bom) { |
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blob = auto_bom(blob); |
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} |
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// First try a.download, then web filesystem, then object URLs
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var |
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filesaver = this |
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, type = blob.type |
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, force = type === force_saveable_type |
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, object_url |
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, dispatch_all = function () { |
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dispatch(filesaver, "writestart progress write writeend".split(" ")); |
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} |
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// on any filesys errors revert to saving with object URLs
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, fs_error = function () { |
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if ((is_chrome_ios || (force && is_safari)) && view.FileReader) { |
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// Safari doesn't allow downloading of blob urls
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var reader = new FileReader(); |
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reader.onloadend = function () { |
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var url = is_chrome_ios ? reader.result : reader.result.replace(/^data:[^;]*;/, 'data:attachment/file;'); |
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var popup = view.open(url, '_blank'); |
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if (!popup) view.location.href = url; |
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url = undefined; // release reference before dispatching
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filesaver.readyState = filesaver.DONE; |
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dispatch_all(); |
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}; |
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reader.readAsDataURL(blob); |
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filesaver.readyState = filesaver.INIT; |
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return; |
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} |
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// don't create more object URLs than needed
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if (!object_url) { |
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object_url = get_URL().createObjectURL(blob); |
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} |
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if (force) { |
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view.location.href = object_url; |
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} else { |
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var opened = view.open(object_url, "_blank"); |
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if (!opened) { |
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// Apple does not allow window.open, see https://developer.apple.com/library/safari/documentation/Tools/Conceptual/SafariExtensionGuide/WorkingwithWindowsandTabs/WorkingwithWindowsandTabs.html
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view.location.href = object_url; |
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} |
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} |
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filesaver.readyState = filesaver.DONE; |
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dispatch_all(); |
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revoke(object_url); |
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} |
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; |
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filesaver.readyState = filesaver.INIT; |
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if (can_use_save_link) { |
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object_url = get_URL().createObjectURL(blob); |
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setTimeout(function () { |
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save_link.href = object_url; |
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save_link.download = name; |
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click(save_link); |
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dispatch_all(); |
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revoke(object_url); |
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filesaver.readyState = filesaver.DONE; |
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}); |
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return; |
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} |
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fs_error(); |
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} |
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, FS_proto = FileSaver.prototype |
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, saveAs = function (blob, name, no_auto_bom) { |
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return new FileSaver(blob, name || blob.name || "download", no_auto_bom); |
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} |
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; |
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// IE 10+ (native saveAs)
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if (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob) { |
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return function (blob, name, no_auto_bom) { |
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name = name || blob.name || "download"; |
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if (!no_auto_bom) { |
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blob = auto_bom(blob); |
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} |
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return navigator.msSaveOrOpenBlob(blob, name); |
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}; |
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} |
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FS_proto.abort = function () { }; |
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FS_proto.readyState = FS_proto.INIT = 0; |
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FS_proto.WRITING = 1; |
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FS_proto.DONE = 2; |
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FS_proto.error = |
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FS_proto.onwritestart = |
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FS_proto.onprogress = |
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FS_proto.onwrite = |
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FS_proto.onabort = |
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FS_proto.onerror = |
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FS_proto.onwriteend = |
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null; |
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return saveAs; |
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}( |
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typeof self !== "undefined" && self |
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|| typeof window !== "undefined" && window |
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|| this.content |
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)); |
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// `self` is undefined in Firefox for Android content script context
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// while `this` is nsIContentFrameMessageManager
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// with an attribute `content` that corresponds to the window
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if (typeof module !== "undefined" && module.exports) { |
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module.exports.saveAs = saveAs; |
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} else if ((typeof define !== "undefined" && define !== null) && (define.amd !== null)) { |
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define([], function () { |
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return saveAs; |
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}); |
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} |
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if (typeof jQuery !== "undefined" && typeof saveAs !== "undefined") { |
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(function ($) { |
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$.fn.wordExport = function (fileName) { |
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fileName = typeof fileName !== 'undefined' ? fileName : "jQuery-Word-Export"; |
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var statics = { |
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mhtml: { |
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top: "Mime-Version: 1.0\nContent-Base: " + location.href + "\nContent-Type: Multipart/related; boundary=\"NEXT.ITEM-BOUNDARY\";type=\"text/html\"\n\n--NEXT.ITEM-BOUNDARY\nContent-Type: text/html; charset=\"utf-8\"\nContent-Location: " + location.href + "\n\n<!DOCTYPE html>\n<html>\n_html_</html>", |
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head: "<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n<style>\n_styles_\n</style>\n</head>\n", |
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body: "<body>_body_</body>" |
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} |
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}; |
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var options = { |
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maxWidth: 624 |
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}; |
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// Clone selected element before manipulating it
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var markup = $(this).clone(); |
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// Remove hidden elements from the output
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markup.each(function () { |
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var self = $(this); |
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if (self.is(':hidden')) |
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self.remove(); |
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}); |
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// Embed all images using Data URLs
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var images = Array(); |
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var img = markup.find('img'); |
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for (var i = 0; i < img.length; i++) { |
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// Calculate dimensions of output image
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var w = Math.min(img[i].width, options.maxWidth); |
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var h = img[i].height * (w / img[i].width); |
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// Create canvas for converting image to data URL
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var canvas = document.createElement("CANVAS"); |
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canvas.width = w; |
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canvas.height = h; |
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// Draw image to canvas
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var context = canvas.getContext('2d'); |
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context.drawImage(img[i], 0, 0, w, h); |
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// Get data URL encoding of image
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var uri = canvas.toDataURL("image/png/jpg"); |
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$(img[i]).attr("src", img[i].src); |
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img[i].width = w; |
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img[i].height = h; |
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// Save encoded image to array
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images[i] = { |
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type: uri.substring(uri.indexOf(":") + 1, uri.indexOf(";")), |
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encoding: uri.substring(uri.indexOf(";") + 1, uri.indexOf(",")), |
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location: $(img[i]).attr("src"), |
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data: uri.substring(uri.indexOf(",") + 1) |
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}; |
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} |
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// Prepare bottom of mhtml file with image data
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var mhtmlBottom = "\n"; |
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for (var i = 0; i < images.length; i++) { |
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mhtmlBottom += "--NEXT.ITEM-BOUNDARY\n"; |
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mhtmlBottom += "Content-Location: " + images[i].location + "\n"; |
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mhtmlBottom += "Content-Type: " + images[i].type + "\n"; |
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mhtmlBottom += "Content-Transfer-Encoding: " + images[i].encoding + "\n\n"; |
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mhtmlBottom += images[i].data + "\n\n"; |
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} |
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mhtmlBottom += "--NEXT.ITEM-BOUNDARY--"; |
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//TODO: load css from included stylesheet
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//var styles=' /* Font Definitions */@font-face{font-family:宋体;panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-alt:SimSun;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;} @font-face{font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;mso-font-charset:1;mso-generic-font-family:roman;mso-font-format:other;mso-font-pitch:variable;mso-font-signature:0 0 0 0 0 0;} @font-face{font-family:"\@宋体";panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;}/* Style Definitions */p.MsoNormal, li.MsoNormal, div.MsoNormal{mso-style-unhide:no;mso-style-qformat:yes;mso-style-parent:"";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:14.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoHeader, li.MsoHeader, div.MsoHeader{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"页眉 Char";margin:0cm;margin-bottom:.0001pt;text-align:center;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoFooter, li.MsoFooter, div.MsoFooter{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"页脚 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoAcetate, li.MsoAcetate, div.MsoAcetate{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"批注框文本 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}span.Char{mso-style-name:"页眉 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:页眉;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}span.Char0{mso-style-name:"页脚 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:页脚;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}span.Char1{mso-style-name:"批注框文本 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:批注框文本;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}p.msochpdefault, li.msochpdefault, div.msochpdefault{mso-style-name:msochpdefault;mso-style-unhide:no;mso-margin-top-alt:auto;margin-right:0cm;mso-margin-bottom-alt:auto;margin-left:0cm;mso-pagination:widow-orphan;font-size:10.0pt;font-family:宋体;mso-bidi-font-family:宋体;}span.msonormal0{mso-style-name:msonormal;mso-style-unhide:no;}.MsoChpDefault{mso-style-type:export-only;mso-default-props:yes;font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt;}/* Page Definitions */ @page WordSection1{size:595.3pt 841.9pt;margin:72.0pt 90.0pt 72.0pt 90.0pt;mso-header-margin:42.55pt;mso-footer-margin:49.6pt;mso-paper-source:0;}div.WordSection1{page:WordSection1;}';
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var styles = '' |
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// Aggregate parts of the file together
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var fileContent = statics.mhtml.top.replace("_html_", statics.mhtml.head.replace("_styles_", styles) + statics.mhtml.body.replace("_body_", markup.html())) + mhtmlBottom; |
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// Create a Blob with the file contents
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var blob = new Blob([fileContent], { |
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type: "application/msword;charset=utf-8" |
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}); |
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saveAs(blob, fileName + ".doc"); |
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}; |
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})(jQuery); |
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} else { |
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if (typeof jQuery === "undefined") { |
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console.error("jQuery Word Export: missing dependency (jQuery)"); |
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} |
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if (typeof saveAs === "undefined") { |
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console.error("jQuery Word Export: missing dependency (FileSaver.js)"); |
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} |
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} |
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