@syncfusion/ej2-pdfviewer
Version:
Essential JS 2 PDF viewer Component
1,204 lines (1,164 loc) • 271 kB
JavaScript
var PDFiumModule = (() => {
var _scriptDir = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined;
if (typeof __filename !== 'undefined')
_scriptDir = _scriptDir || __filename;
return (function (PDFiumModule = {}) {
var Module = typeof PDFiumModule != "undefined" ? PDFiumModule : {};
var moduleOverrides = Object.assign({}, Module);
var arguments_ = [];
var thisProgram = "./this.program";
var quit_ = (status, toThrow) => {
throw toThrow
};
var ENVIRONMENT_IS_WEB = typeof window == "object";
var ENVIRONMENT_IS_WORKER = typeof importScripts == "function";
var ENVIRONMENT_IS_NODE = typeof process == "object" && typeof process.versions == "object" && typeof process.versions.node == "string";
var scriptDirectory = "";
function locateFile(path) {
if (Module["locateFile"]) {
return Module["locateFile"](path, scriptDirectory)
}
return scriptDirectory + path
}
var read_, readAsync, readBinary, setWindowTitle;
if (ENVIRONMENT_IS_NODE) {
var fs = require("fs");
var nodePath = require("path");
if (ENVIRONMENT_IS_WORKER) {
scriptDirectory = nodePath.dirname(scriptDirectory) + "/"
} else {
scriptDirectory = __dirname + "/"
}
read_ = (filename, binary) => {
filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename);
return fs.readFileSync(filename, binary ? undefined : "utf8")
};
readBinary = filename => {
var ret = read_(filename, true);
if (!ret.buffer) {
ret = new Uint8Array(ret)
}
return ret
};
readAsync = (filename, onload, onerror) => {
filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename);
fs.readFile(filename, function (err, data) {
if (err) onerror(err);
else onload(data.buffer)
})
};
if (process.argv.length > 1) {
thisProgram = process.argv[1].replace(/\\/g, "/")
}
arguments_ = process.argv.slice(2);
if (typeof module != "undefined") {
module["exports"] = Module
}
process.on("uncaughtException", function (ex) {
if (ex !== "unwind" && !(ex instanceof ExitStatus) && !(ex.context instanceof ExitStatus)) {
throw ex
}
});
var nodeMajor = process.versions.node.split(".")[0];
if (nodeMajor < 15) {
process.on("unhandledRejection", function (reason) {
throw reason
})
}
quit_ = (status, toThrow) => {
process.exitCode = status;
throw toThrow
};
Module["inspect"] = function () {
return "[Emscripten Module object]"
}
} else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
if (ENVIRONMENT_IS_WORKER) {
scriptDirectory = self.location.href
} else if (typeof document != "undefined" && document.currentScript) {
scriptDirectory = document.currentScript.src
}
if (scriptDirectory.indexOf("blob:") !== 0) {
scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf("/") + 1)
} else {
scriptDirectory = ""
} {
read_ = url => {
var xhr = new XMLHttpRequest;
xhr.open("GET", url, false);
xhr.send(null);
return xhr.responseText
};
if (ENVIRONMENT_IS_WORKER) {
readBinary = url => {
var xhr = new XMLHttpRequest;
xhr.open("GET", url, false);
xhr.responseType = "arraybuffer";
xhr.send(null);
return new Uint8Array(xhr.response)
}
}
readAsync = (url, onload, onerror) => {
var xhr = new XMLHttpRequest;
xhr.open("GET", url, true);
xhr.responseType = "arraybuffer";
xhr.onload = () => {
if (xhr.status == 200 || xhr.status == 0 && xhr.response) {
onload(xhr.response);
return
}
onerror()
};
xhr.onerror = onerror;
xhr.send(null)
}
}
setWindowTitle = title => document.title = title
} else {}
var out = Module["print"] || console.log.bind(console);
var err = Module["printErr"] || console.warn.bind(console);
Object.assign(Module, moduleOverrides);
moduleOverrides = null;
if (Module["arguments"]) arguments_ = Module["arguments"];
if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
if (Module["quit"]) quit_ = Module["quit"];
var wasmBinary;
if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];
var noExitRuntime = Module["noExitRuntime"] || true;
if (typeof WebAssembly != "object") {
abort("no native wasm support detected")
}
var wasmMemory;
var ABORT = false;
var EXITSTATUS;
function assert(condition, text) {
if (!condition) {
abort(text)
}
}
var UTF8Decoder = typeof TextDecoder != "undefined" ? new TextDecoder("utf8") : undefined;
function UTF8ArrayToString(heapOrArray, idx, maxBytesToRead) {
var endIdx = idx + maxBytesToRead;
var endPtr = idx;
while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;
if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr))
}
var str = "";
while (idx < endPtr) {
var u0 = heapOrArray[idx++];
if (!(u0 & 128)) {
str += String.fromCharCode(u0);
continue
}
var u1 = heapOrArray[idx++] & 63;
if ((u0 & 224) == 192) {
str += String.fromCharCode((u0 & 31) << 6 | u1);
continue
}
var u2 = heapOrArray[idx++] & 63;
if ((u0 & 240) == 224) {
u0 = (u0 & 15) << 12 | u1 << 6 | u2
} else {
u0 = (u0 & 7) << 18 | u1 << 12 | u2 << 6 | heapOrArray[idx++] & 63
}
if (u0 < 65536) {
str += String.fromCharCode(u0)
} else {
var ch = u0 - 65536;
str += String.fromCharCode(55296 | ch >> 10, 56320 | ch & 1023)
}
}
return str
}
function UTF8ToString(ptr, maxBytesToRead) {
return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : ""
}
function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) {
if (!(maxBytesToWrite > 0)) return 0;
var startIdx = outIdx;
var endIdx = outIdx + maxBytesToWrite - 1;
for (var i = 0; i < str.length; ++i) {
var u = str.charCodeAt(i);
if (u >= 55296 && u <= 57343) {
var u1 = str.charCodeAt(++i);
u = 65536 + ((u & 1023) << 10) | u1 & 1023
}
if (u <= 127) {
if (outIdx >= endIdx) break;
heap[outIdx++] = u
} else if (u <= 2047) {
if (outIdx + 1 >= endIdx) break;
heap[outIdx++] = 192 | u >> 6;
heap[outIdx++] = 128 | u & 63
} else if (u <= 65535) {
if (outIdx + 2 >= endIdx) break;
heap[outIdx++] = 224 | u >> 12;
heap[outIdx++] = 128 | u >> 6 & 63;
heap[outIdx++] = 128 | u & 63
} else {
if (outIdx + 3 >= endIdx) break;
heap[outIdx++] = 240 | u >> 18;
heap[outIdx++] = 128 | u >> 12 & 63;
heap[outIdx++] = 128 | u >> 6 & 63;
heap[outIdx++] = 128 | u & 63
}
}
heap[outIdx] = 0;
return outIdx - startIdx
}
function stringToUTF8(str, outPtr, maxBytesToWrite) {
return stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite)
}
function lengthBytesUTF8(str) {
var len = 0;
for (var i = 0; i < str.length; ++i) {
var c = str.charCodeAt(i);
if (c <= 127) {
len++
} else if (c <= 2047) {
len += 2
} else if (c >= 55296 && c <= 57343) {
len += 4;
++i
} else {
len += 3
}
}
return len
}
var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
function updateMemoryViews() {
var b = wasmMemory.buffer;
Module["HEAP8"] = HEAP8 = new Int8Array(b);
Module["HEAP16"] = HEAP16 = new Int16Array(b);
Module["HEAP32"] = HEAP32 = new Int32Array(b);
Module["HEAPU8"] = HEAPU8 = new Uint8Array(b);
Module["HEAPU16"] = HEAPU16 = new Uint16Array(b);
Module["HEAPU32"] = HEAPU32 = new Uint32Array(b);
Module["HEAPF32"] = HEAPF32 = new Float32Array(b);
Module["HEAPF64"] = HEAPF64 = new Float64Array(b)
}
var wasmTable;
var __ATPRERUN__ = [];
var __ATINIT__ = [];
var __ATPOSTRUN__ = [];
var runtimeInitialized = false;
var runtimeKeepaliveCounter = 0;
function keepRuntimeAlive() {
return noExitRuntime || runtimeKeepaliveCounter > 0
}
function preRun() {
if (Module["preRun"]) {
if (typeof Module["preRun"] == "function") Module["preRun"] = [Module["preRun"]];
while (Module["preRun"].length) {
addOnPreRun(Module["preRun"].shift())
}
}
callRuntimeCallbacks(__ATPRERUN__)
}
function initRuntime() {
runtimeInitialized = true;
if (!Module["noFSInit"] && !FS.init.initialized) FS.init();
FS.ignorePermissions = false;
TTY.init();
callRuntimeCallbacks(__ATINIT__)
}
function postRun() {
if (Module["postRun"]) {
if (typeof Module["postRun"] == "function") Module["postRun"] = [Module["postRun"]];
while (Module["postRun"].length) {
addOnPostRun(Module["postRun"].shift())
}
}
callRuntimeCallbacks(__ATPOSTRUN__)
}
function addOnPreRun(cb) {
__ATPRERUN__.unshift(cb)
}
function addOnInit(cb) {
__ATINIT__.unshift(cb)
}
function addOnPostRun(cb) {
__ATPOSTRUN__.unshift(cb)
}
var runDependencies = 0;
var runDependencyWatcher = null;
var dependenciesFulfilled = null;
function getUniqueRunDependency(id) {
return id
}
function addRunDependency(id) {
runDependencies++;
if (Module["monitorRunDependencies"]) {
Module["monitorRunDependencies"](runDependencies)
}
}
function removeRunDependency(id) {
runDependencies--;
if (Module["monitorRunDependencies"]) {
Module["monitorRunDependencies"](runDependencies)
}
if (runDependencies == 0) {
if (runDependencyWatcher !== null) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null
}
if (dependenciesFulfilled) {
var callback = dependenciesFulfilled;
dependenciesFulfilled = null;
callback()
}
}
}
function abort(what) {
if (Module["onAbort"]) {
Module["onAbort"](what)
}
what = "Aborted(" + what + ")";
err(what);
ABORT = true;
EXITSTATUS = 1;
what += ". Build with -sASSERTIONS for more info.";
var e = new WebAssembly.RuntimeError(what);
throw e
}
var dataURIPrefix = "data:application/octet-stream;base64,";
function isDataURI(filename) {
return filename.startsWith(dataURIPrefix)
}
function isFileURI(filename) {
return filename.startsWith("file://")
}
var wasmBinaryFile;
if (PDFiumModule.url) {
wasmBinaryFile = PDFiumModule.url + '/pdfium.wasm';
}
else {
wasmBinaryFile = 'pdfium.wasm';
}
if (!isDataURI(wasmBinaryFile)) {
wasmBinaryFile = locateFile(wasmBinaryFile)
}
function getBinary(file) {
try {
if (file == wasmBinaryFile && wasmBinary) {
return new Uint8Array(wasmBinary)
}
if (readBinary) {
return readBinary(file)
}
throw "both async and sync fetching of the wasm failed"
} catch (err) {
abort(err)
}
}
function getBinaryPromise(binaryFile) {
if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
if (typeof fetch == "function" && !isFileURI(binaryFile)) {
return fetch(binaryFile, {
credentials: "same-origin"
}).then(function (response) {
if (!response["ok"]) {
throw "failed to load wasm binary file at '" + binaryFile + "'"
}
return response["arrayBuffer"]()
}).catch(function () {
return getBinary(binaryFile)
})
} else {
if (readAsync) {
return new Promise(function (resolve, reject) {
readAsync(binaryFile, function (response) {
resolve(new Uint8Array(response))
}, reject)
})
}
}
}
return Promise.resolve().then(function () {
return getBinary(binaryFile)
})
}
function instantiateArrayBuffer(binaryFile, imports, receiver) {
return getBinaryPromise(binaryFile).then(function (binary) {
return WebAssembly.instantiate(binary, imports)
}).then(function (instance) {
return instance
}).then(receiver, function (reason) {
err("failed to asynchronously prepare wasm: " + reason);
abort(reason)
})
}
function instantiateAsync(binary, binaryFile, imports, callback) {
if (!binary && typeof WebAssembly.instantiateStreaming == "function" && !isDataURI(binaryFile) && !isFileURI(binaryFile) && !ENVIRONMENT_IS_NODE && typeof fetch == "function") {
return fetch(binaryFile, {
credentials: "same-origin"
}).then(function (response) {
var result = WebAssembly.instantiateStreaming(response, imports);
return result.then(callback, function (reason) {
err("wasm streaming compile failed: " + reason);
err("falling back to ArrayBuffer instantiation");
return instantiateArrayBuffer(binaryFile, imports, callback)
})
})
} else {
return instantiateArrayBuffer(binaryFile, imports, callback)
}
}
function createWasm() {
var info = {
"env": wasmImports,
"wasi_snapshot_preview1": wasmImports
};
function receiveInstance(instance, module) {
var exports = instance.exports;
Module["asm"] = exports;
wasmMemory = Module["asm"]["memory"];
updateMemoryViews();
wasmTable = Module["asm"]["__indirect_function_table"];
addOnInit(Module["asm"]["__wasm_call_ctors"]);
removeRunDependency("wasm-instantiate");
return exports
}
addRunDependency("wasm-instantiate");
function receiveInstantiationResult(result) {
receiveInstance(result["instance"])
}
if (Module["instantiateWasm"]) {
try {
return Module["instantiateWasm"](info, receiveInstance)
} catch (e) {
err("Module.instantiateWasm callback failed with error: " + e);
return false
}
}
instantiateAsync(wasmBinary, wasmBinaryFile, info, receiveInstantiationResult);
return {}
}
var tempDouble;
var tempI64;
function ExitStatus(status) {
this.name = "ExitStatus";
this.message = "Program terminated with exit(" + status + ")";
this.status = status
}
function callRuntimeCallbacks(callbacks) {
while (callbacks.length > 0) {
callbacks.shift()(Module)
}
}
var wasmTableMirror = [];
function getWasmTableEntry(funcPtr) {
var func = wasmTableMirror[funcPtr];
if (!func) {
if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;
wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr)
}
return func
}
function ___call_sighandler(fp, sig) {
getWasmTableEntry(fp)(sig)
}
function setErrNo(value) {
HEAP32[___errno_location() >> 2] = value;
return value
}
var PATH = {
isAbs: path => path.charAt(0) === "/",
splitPath: filename => {
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
return splitPathRe.exec(filename).slice(1)
},
normalizeArray: (parts, allowAboveRoot) => {
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === ".") {
parts.splice(i, 1)
} else if (last === "..") {
parts.splice(i, 1);
up++
} else if (up) {
parts.splice(i, 1);
up--
}
}
if (allowAboveRoot) {
for (; up; up--) {
parts.unshift("..")
}
}
return parts
},
normalize: path => {
var isAbsolute = PATH.isAbs(path),
trailingSlash = path.substr(-1) === "/";
path = PATH.normalizeArray(path.split("/").filter(p => !!p), !isAbsolute).join("/");
if (!path && !isAbsolute) {
path = "."
}
if (path && trailingSlash) {
path += "/"
}
return (isAbsolute ? "/" : "") + path
},
dirname: path => {
var result = PATH.splitPath(path),
root = result[0],
dir = result[1];
if (!root && !dir) {
return "."
}
if (dir) {
dir = dir.substr(0, dir.length - 1)
}
return root + dir
},
basename: path => {
if (path === "/") return "/";
path = PATH.normalize(path);
path = path.replace(/\/$/, "");
var lastSlash = path.lastIndexOf("/");
if (lastSlash === -1) return path;
return path.substr(lastSlash + 1)
},
join: function () {
var paths = Array.prototype.slice.call(arguments);
return PATH.normalize(paths.join("/"))
},
join2: (l, r) => {
return PATH.normalize(l + "/" + r)
}
};
function getRandomDevice() {
if (typeof crypto == "object" && typeof crypto["getRandomValues"] == "function") {
var randomBuffer = new Uint8Array(1);
return () => {
crypto.getRandomValues(randomBuffer);
return randomBuffer[0]
}
} else if (ENVIRONMENT_IS_NODE) {
try {
var crypto_module = require("crypto");
return () => crypto_module["randomBytes"](1)[0]
} catch (e) {}
}
return () => abort("randomDevice")
}
var PATH_FS = {
resolve: function () {
var resolvedPath = "",
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = i >= 0 ? arguments[i] : FS.cwd();
if (typeof path != "string") {
throw new TypeError("Arguments to path.resolve must be strings")
} else if (!path) {
return ""
}
resolvedPath = path + "/" + resolvedPath;
resolvedAbsolute = PATH.isAbs(path)
}
resolvedPath = PATH.normalizeArray(resolvedPath.split("/").filter(p => !!p), !resolvedAbsolute).join("/");
return (resolvedAbsolute ? "/" : "") + resolvedPath || "."
},
relative: (from, to) => {
from = PATH_FS.resolve(from).substr(1);
to = PATH_FS.resolve(to).substr(1);
function trim(arr) {
var start = 0;
for (; start < arr.length; start++) {
if (arr[start] !== "") break
}
var end = arr.length - 1;
for (; end >= 0; end--) {
if (arr[end] !== "") break
}
if (start > end) return [];
return arr.slice(start, end - start + 1)
}
var fromParts = trim(from.split("/"));
var toParts = trim(to.split("/"));
var length = Math.min(fromParts.length, toParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (fromParts[i] !== toParts[i]) {
samePartsLength = i;
break
}
}
var outputParts = [];
for (var i = samePartsLength; i < fromParts.length; i++) {
outputParts.push("..")
}
outputParts = outputParts.concat(toParts.slice(samePartsLength));
return outputParts.join("/")
}
};
function intArrayFromString(stringy, dontAddNull, length) {
var len = length > 0 ? length : lengthBytesUTF8(stringy) + 1;
var u8array = new Array(len);
var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
if (dontAddNull) u8array.length = numBytesWritten;
return u8array
}
var TTY = {
ttys: [],
init: function () {},
shutdown: function () {},
register: function (dev, ops) {
TTY.ttys[dev] = {
input: [],
output: [],
ops: ops
};
FS.registerDevice(dev, TTY.stream_ops)
},
stream_ops: {
open: function (stream) {
var tty = TTY.ttys[stream.node.rdev];
if (!tty) {
throw new FS.ErrnoError(43)
}
stream.tty = tty;
stream.seekable = false
},
close: function (stream) {
stream.tty.ops.fsync(stream.tty)
},
fsync: function (stream) {
stream.tty.ops.fsync(stream.tty)
},
read: function (stream, buffer, offset, length, pos) {
if (!stream.tty || !stream.tty.ops.get_char) {
throw new FS.ErrnoError(60)
}
var bytesRead = 0;
for (var i = 0; i < length; i++) {
var result;
try {
result = stream.tty.ops.get_char(stream.tty)
} catch (e) {
throw new FS.ErrnoError(29)
}
if (result === undefined && bytesRead === 0) {
throw new FS.ErrnoError(6)
}
if (result === null || result === undefined) break;
bytesRead++;
buffer[offset + i] = result
}
if (bytesRead) {
stream.node.timestamp = Date.now()
}
return bytesRead
},
write: function (stream, buffer, offset, length, pos) {
if (!stream.tty || !stream.tty.ops.put_char) {
throw new FS.ErrnoError(60)
}
try {
for (var i = 0; i < length; i++) {
stream.tty.ops.put_char(stream.tty, buffer[offset + i])
}
} catch (e) {
throw new FS.ErrnoError(29)
}
if (length) {
stream.node.timestamp = Date.now()
}
return i
}
},
default_tty_ops: {
get_char: function (tty) {
if (!tty.input.length) {
var result = null;
if (ENVIRONMENT_IS_NODE) {
var BUFSIZE = 256;
var buf = Buffer.alloc(BUFSIZE);
var bytesRead = 0;
try {
bytesRead = fs.readSync(process.stdin.fd, buf, 0, BUFSIZE, -1)
} catch (e) {
if (e.toString().includes("EOF")) bytesRead = 0;
else throw e
}
if (bytesRead > 0) {
result = buf.slice(0, bytesRead).toString("utf-8")
} else {
result = null
}
} else if (typeof window != "undefined" && typeof window.prompt == "function") {
result = window.prompt("Input: ");
if (result !== null) {
result += "\n"
}
} else if (typeof readline == "function") {
result = readline();
if (result !== null) {
result += "\n"
}
}
if (!result) {
return null
}
tty.input = intArrayFromString(result, true)
}
return tty.input.shift()
},
put_char: function (tty, val) {
if (val === null || val === 10) {
out(UTF8ArrayToString(tty.output, 0));
tty.output = []
} else {
if (val != 0) tty.output.push(val)
}
},
fsync: function (tty) {
if (tty.output && tty.output.length > 0) {
out(UTF8ArrayToString(tty.output, 0));
tty.output = []
}
}
},
default_tty1_ops: {
put_char: function (tty, val) {
if (val === null || val === 10) {
err(UTF8ArrayToString(tty.output, 0));
tty.output = []
} else {
if (val != 0) tty.output.push(val)
}
},
fsync: function (tty) {
if (tty.output && tty.output.length > 0) {
err(UTF8ArrayToString(tty.output, 0));
tty.output = []
}
}
}
};
function zeroMemory(address, size) {
HEAPU8.fill(0, address, address + size);
return address
}
function alignMemory(size, alignment) {
return Math.ceil(size / alignment) * alignment
}
function mmapAlloc(size) {
size = alignMemory(size, 65536);
var ptr = _emscripten_builtin_memalign(65536, size);
if (!ptr) return 0;
return zeroMemory(ptr, size)
}
var MEMFS = {
ops_table: null,
mount: function (mount) {
return MEMFS.createNode(null, "/", 16384 | 511, 0)
},
createNode: function (parent, name, mode, dev) {
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
throw new FS.ErrnoError(63)
}
if (!MEMFS.ops_table) {
MEMFS.ops_table = {
dir: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
lookup: MEMFS.node_ops.lookup,
mknod: MEMFS.node_ops.mknod,
rename: MEMFS.node_ops.rename,
unlink: MEMFS.node_ops.unlink,
rmdir: MEMFS.node_ops.rmdir,
readdir: MEMFS.node_ops.readdir,
symlink: MEMFS.node_ops.symlink
},
stream: {
llseek: MEMFS.stream_ops.llseek
}
},
file: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
},
stream: {
llseek: MEMFS.stream_ops.llseek,
read: MEMFS.stream_ops.read,
write: MEMFS.stream_ops.write,
allocate: MEMFS.stream_ops.allocate,
mmap: MEMFS.stream_ops.mmap,
msync: MEMFS.stream_ops.msync
}
},
link: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
readlink: MEMFS.node_ops.readlink
},
stream: {}
},
chrdev: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
},
stream: FS.chrdev_stream_ops
}
}
}
var node = FS.createNode(parent, name, mode, dev);
if (FS.isDir(node.mode)) {
node.node_ops = MEMFS.ops_table.dir.node;
node.stream_ops = MEMFS.ops_table.dir.stream;
node.contents = {}
} else if (FS.isFile(node.mode)) {
node.node_ops = MEMFS.ops_table.file.node;
node.stream_ops = MEMFS.ops_table.file.stream;
node.usedBytes = 0;
node.contents = null
} else if (FS.isLink(node.mode)) {
node.node_ops = MEMFS.ops_table.link.node;
node.stream_ops = MEMFS.ops_table.link.stream
} else if (FS.isChrdev(node.mode)) {
node.node_ops = MEMFS.ops_table.chrdev.node;
node.stream_ops = MEMFS.ops_table.chrdev.stream
}
node.timestamp = Date.now();
if (parent) {
parent.contents[name] = node;
parent.timestamp = node.timestamp
}
return node
},
getFileDataAsTypedArray: function (node) {
if (!node.contents) return new Uint8Array(0);
if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes);
return new Uint8Array(node.contents)
},
expandFileStorage: function (node, newCapacity) {
var prevCapacity = node.contents ? node.contents.length : 0;
if (prevCapacity >= newCapacity) return;
var CAPACITY_DOUBLING_MAX = 1024 * 1024;
newCapacity = Math.max(newCapacity, prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2 : 1.125) >>> 0);
if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256);
var oldContents = node.contents;
node.contents = new Uint8Array(newCapacity);
if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0)
},
resizeFileStorage: function (node, newSize) {
if (node.usedBytes == newSize) return;
if (newSize == 0) {
node.contents = null;
node.usedBytes = 0
} else {
var oldContents = node.contents;
node.contents = new Uint8Array(newSize);
if (oldContents) {
node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes)))
}
node.usedBytes = newSize
}
},
node_ops: {
getattr: function (node) {
var attr = {};
attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
attr.ino = node.id;
attr.mode = node.mode;
attr.nlink = 1;
attr.uid = 0;
attr.gid = 0;
attr.rdev = node.rdev;
if (FS.isDir(node.mode)) {
attr.size = 4096
} else if (FS.isFile(node.mode)) {
attr.size = node.usedBytes
} else if (FS.isLink(node.mode)) {
attr.size = node.link.length
} else {
attr.size = 0
}
attr.atime = new Date(node.timestamp);
attr.mtime = new Date(node.timestamp);
attr.ctime = new Date(node.timestamp);
attr.blksize = 4096;
attr.blocks = Math.ceil(attr.size / attr.blksize);
return attr
},
setattr: function (node, attr) {
if (attr.mode !== undefined) {
node.mode = attr.mode
}
if (attr.timestamp !== undefined) {
node.timestamp = attr.timestamp
}
if (attr.size !== undefined) {
MEMFS.resizeFileStorage(node, attr.size)
}
},
lookup: function (parent, name) {
throw FS.genericErrors[44]
},
mknod: function (parent, name, mode, dev) {
return MEMFS.createNode(parent, name, mode, dev)
},
rename: function (old_node, new_dir, new_name) {
if (FS.isDir(old_node.mode)) {
var new_node;
try {
new_node = FS.lookupNode(new_dir, new_name)
} catch (e) {}
if (new_node) {
for (var i in new_node.contents) {
throw new FS.ErrnoError(55)
}
}
}
delete old_node.parent.contents[old_node.name];
old_node.parent.timestamp = Date.now();
old_node.name = new_name;
new_dir.contents[new_name] = old_node;
new_dir.timestamp = old_node.parent.timestamp;
old_node.parent = new_dir
},
unlink: function (parent, name) {
delete parent.contents[name];
parent.timestamp = Date.now()
},
rmdir: function (parent, name) {
var node = FS.lookupNode(parent, name);
for (var i in node.contents) {
throw new FS.ErrnoError(55)
}
delete parent.contents[name];
parent.timestamp = Date.now()
},
readdir: function (node) {
var entries = [".", ".."];
for (var key in node.contents) {
if (!node.contents.hasOwnProperty(key)) {
continue
}
entries.push(key)
}
return entries
},
symlink: function (parent, newname, oldpath) {
var node = MEMFS.createNode(parent, newname, 511 | 40960, 0);
node.link = oldpath;
return node
},
readlink: function (node) {
if (!FS.isLink(node.mode)) {
throw new FS.ErrnoError(28)
}
return node.link
}
},
stream_ops: {
read: function (stream, buffer, offset, length, position) {
var contents = stream.node.contents;
if (position >= stream.node.usedBytes) return 0;
var size = Math.min(stream.node.usedBytes - position, length);
if (size > 8 && contents.subarray) {
buffer.set(contents.subarray(position, position + size), offset)
} else {
for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i]
}
return size
},
write: function (stream, buffer, offset, length, position, canOwn) {
if (buffer.buffer === HEAP8.buffer) {
canOwn = false
}
if (!length) return 0;
var node = stream.node;
node.timestamp = Date.now();
if (buffer.subarray && (!node.contents || node.contents.subarray)) {
if (canOwn) {
node.contents = buffer.subarray(offset, offset + length);
node.usedBytes = length;
return length
} else if (node.usedBytes === 0 && position === 0) {
node.contents = buffer.slice(offset, offset + length);
node.usedBytes = length;
return length
} else if (position + length <= node.usedBytes) {
node.contents.set(buffer.subarray(offset, offset + length), position);
return length
}
}
MEMFS.expandFileStorage(node, position + length);
if (node.contents.subarray && buffer.subarray) {
node.contents.set(buffer.subarray(offset, offset + length), position)
} else {
for (var i = 0; i < length; i++) {
node.contents[position + i] = buffer[offset + i]
}
}
node.usedBytes = Math.max(node.usedBytes, position + length);
return length
},
llseek: function (stream, offset, whence) {
var position = offset;
if (whence === 1) {
position += stream.position
} else if (whence === 2) {
if (FS.isFile(stream.node.mode)) {
position += stream.node.usedBytes
}
}
if (position < 0) {
throw new FS.ErrnoError(28)
}
return position
},
allocate: function (stream, offset, length) {
MEMFS.expandFileStorage(stream.node, offset + length);
stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length)
},
mmap: function (stream, length, position, prot, flags) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(43)
}
var ptr;
var allocated;
var contents = stream.node.contents;
if (!(flags & 2) && contents.buffer === HEAP8.buffer) {
allocated = false;
ptr = contents.byteOffset
} else {
if (position > 0 || position + length < contents.length) {
if (contents.subarray) {
contents = contents.subarray(position, position + length)
} else {
contents = Array.prototype.slice.call(contents, position, position + length)
}
}
allocated = true;
ptr = mmapAlloc(length);
if (!ptr) {
throw new FS.ErrnoError(48)
}
HEAP8.set(contents, ptr)
}
return {
ptr: ptr,
allocated: allocated
}
},
msync: function (stream, buffer, offset, length, mmapFlags) {
MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
return 0
}
}
};
function asyncLoad(url, onload, onerror, noRunDep) {
var dep = !noRunDep ? getUniqueRunDependency("al " + url) : "";
readAsync(url, arrayBuffer => {
assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
onload(new Uint8Array(arrayBuffer));
if (dep) removeRunDependency(dep)
}, event => {
if (onerror) {
onerror()
} else {
throw 'Loading data file "' + url + '" failed.'
}
});
if (dep) addRunDependency(dep)
}
var FS = {
root: null,
mounts: [],
devices: {},
streams: [],
nextInode: 1,
nameTable: null,
currentPath: "/",
initialized: false,
ignorePermissions: true,
ErrnoError: null,
genericErrors: {},
filesystems: null,
syncFSRequests: 0,
lookupPath: (path, opts = {}) => {
path = PATH_FS.resolve(path);
if (!path) return {
path: "",
node: null
};
var defaults = {
follow_mount: true,
recurse_count: 0
};
opts = Object.assign(defaults, opts);
if (opts.recurse_count > 8) {
throw new FS.ErrnoError(32)
}
var parts = path.split("/").filter(p => !!p);
var current = FS.root;
var current_path = "/";
for (var i = 0; i < parts.length; i++) {
var islast = i === parts.length - 1;
if (islast && opts.parent) {
break
}
current = FS.lookupNode(current, parts[i]);
current_path = PATH.join2(current_path, parts[i]);
if (FS.isMountpoint(current)) {
if (!islast || islast && opts.follow_mount) {
current = current.mounted.root
}
}
if (!islast || opts.follow) {
var count = 0;
while (FS.isLink(current.mode)) {
var link = FS.readlink(current_path);
current_path = PATH_FS.resolve(PATH.dirname(current_path), link);
var lookup = FS.lookupPath(current_path, {
recurse_count: opts.recurse_count + 1
});
current = lookup.node;
if (count++ > 40) {
throw new FS.ErrnoError(32)
}
}
}
}
return {
path: current_path,
node: current
}
},
getPath: node => {
var path;
while (true) {
if (FS.isRoot(node)) {
var mount = node.mount.mountpoint;
if (!path) return mount;
return mount[mount.length - 1] !== "/" ? mount + "/" + path : mount + path
}
path = path ? node.name + "/" + path : node.name;
node = node.parent
}
},
hashName: (parentid, name) => {
var hash = 0;
for (var i = 0; i < name.length; i++) {
hash = (hash << 5) - hash + name.charCodeAt(i) | 0
}
return (parentid + hash >>> 0) % FS.nameTable.length
},
hashAddNode: node => {
var hash = FS.hashName(node.parent.id, node.name);
node.name_next = FS.nameTable[hash];
FS.nameTable[hash] = node
},
hashRemoveNode: node => {
var hash = FS.hashName(