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add js OpenZipFromUint8Array

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Kulikova Svetlana
2021-04-22 11:47:38 +03:00
parent ccd2814bee
commit 1254020428
2 changed files with 66 additions and 15 deletions
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13
OfficeUtils/js/wasm/js/code.js
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@ -36,15 +36,20 @@ window.onload = function()
var reader = new FileReader();
reader.onload = function(e) {
window.loadedZip = window.nativeZlibEngine.openZip(e.target.result);
window.loadedZip = window.nativeZlibEngine.OpenZipFromBuffer(e.target.result);
if (!window.loadedZip)
return;
var files = window.loadedZip.GetFilesInArchive();
var files = window.loadedZip.GetFilesInZip();
for (var i = 0; i < files.length; i++)
window.writeFile(files[i]);
window.loadedZip.closeZip();
window.loadedZip.CloseZip();
var archive = window.loadedZip.CreateArchiveFromFiles(files);
var archive = window.loadedZip.CreateZipFromFiles(files);
window.loadedZip.OpenZipFromUint8Array(archive);
var files2 = window.loadedZip.GetFilesInZip();
for (var i = 0; i < files2.length; i++)
window.writeFile(files2[i]);
window.loadedZip.CloseZip();
};
reader.readAsArrayBuffer(file);

68
OfficeUtils/js/wasm/js/zlib.js
View File

@ -144,10 +144,10 @@ function Zlib()
this.paths = [];
this.files = [];
this.CreateArchiveFromFiles = function(_files)
this.CreateZipFromFiles = function(_files)
{
if (!this.isInit) return null;
//if (this.zipFile == 0)
if (this.zipFile == 0)
{
this.zipFile = Module["_Zlib_Create"]();
this.paths = [];
@ -205,26 +205,26 @@ function Zlib()
var _lenFile = new Int32Array(Module["HEAP8"].buffer, pointerZip, 4);
var len = _lenFile[0];
var zip = new Uint8Array(Module["HEAP8"].buffer, pointerZip + 4, len);
return { length : len, file : zip };
return zip;
}
this.GetPathsInArchive = function()
this.GetPathsInZip = function()
{
return (this.isInit && this.zipFile != 0 ? this.paths : []);
}
this.GetFilesInArchive = function()
this.GetFilesInZip = function()
{
if (!this.isInit) return [];
if (this.zipFile == 0) return [];
var _paths = this.GetPathsInArchive();
var _paths = this.GetPathsInZip();
for (var i = 0; i < _paths.length; i++)
this.GetFileInArchive(_paths[i]);
this.GetFileInZip(_paths[i]);
return this.files;
}
this.GetFileInArchive = function(_path)
this.GetFileInZip = function(_path)
{
if (!this.isInit) return null;
if (this.zipFile == 0) return null;
@ -258,7 +258,7 @@ function Zlib()
return file;
}
this.openZip = function(dataBuffer)
this.OpenZipFromBuffer = function(dataBuffer)
{
if (!this.isInit) return null;
@ -301,12 +301,58 @@ function Zlib()
}
return this;
}
this.OpenZipFromUint8Array = function(dataBuffer)
{
if (!this.isInit) return null;
this.closeZip = function()
// копируем память в память webasm
var FileRawDataSize = dataBuffer.length;
var FileRawData = Module["_Zlib_Malloc"](FileRawDataSize);
if (0 === FileRawData) return null;
Module["HEAP8"].set(dataBuffer, FileRawData);
// грузим данные
this.zipFile = Module["_Zlib_Load"](FileRawData, FileRawDataSize);
if (this.zipFile == 0)
{
Module["_Zlib_Free"](FileRawData);
return null;
}
// получаем пути в архиве
var pointer = Module["_Zlib_GetPathsInArchive"](this.zipFile);
if (pointer == 0)
{
Module["_Zlib_Destroy"](this.zipFile);
Module["_Zlib_Free"](FileRawData);
return null;
}
var lenArray = new Int32Array(Module["HEAP8"].buffer, pointer, 4);
var len = lenArray[0];
len -= 4;
var buffer = new Uint8Array(Module["HEAP8"].buffer, pointer + 4, len);
var index = 0;
while (index < len)
{
var lenRec = buffer[index] | buffer[index + 1] << 8 | buffer[index + 2] << 16 | buffer[index + 3] << 24;
index += 4;
var _path = readFromUtf8(buffer, index, lenRec);
var findPath = this.paths.find(o => o === _path);
if (!findPath)
this.paths.push(_path);
index += lenRec;
}
return this;
}
this.CloseZip = function()
{
if (!this.isInit) return;
if (this.zipFile != 0) Module["_Zlib_Destroy"](this.zipFile);
this.paths = [];
this.zipFile = null;
this.paths = [];
this.files = [];
}
}