mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-11 10:40:29 +00:00
312 lines
8.4 KiB
JavaScript
Executable File
312 lines
8.4 KiB
JavaScript
Executable File
//--
|
|
//-- Filesystem code
|
|
//--
|
|
//#
|
|
//# This code is designed to be reusable, but please take care,
|
|
//# there are some intricacies that make it tricky to use these
|
|
//# functions with full UTF-8 files. For more details, see:
|
|
//#
|
|
//# http://trac.tiddlywiki.org/ticket/99
|
|
//#
|
|
//#
|
|
//# UTF-8 encoding rules:
|
|
//# 0x0000 - 0x007F: 0xxxxxxx
|
|
//# 0x0080 - 0x07FF: 110xxxxx 10xxxxxx
|
|
//# 0x0800 - 0xFFFF: 1110xxxx 10xxxxxx 10xxxxxx
|
|
|
|
function convertUTF8ToUnicode(u)
|
|
{
|
|
return config.browser.isOpera || !window.netscape ? manualConvertUTF8ToUnicode(u) : mozConvertUTF8ToUnicode(u);
|
|
}
|
|
|
|
function manualConvertUTF8ToUnicode(utf)
|
|
{
|
|
var uni = utf;
|
|
var src = 0;
|
|
var dst = 0;
|
|
var b1, b2, b3;
|
|
var c;
|
|
while(src < utf.length) {
|
|
b1 = utf.charCodeAt(src++);
|
|
if(b1 < 0x80) {
|
|
dst++;
|
|
} else if(b1 < 0xE0) {
|
|
b2 = utf.charCodeAt(src++);
|
|
c = String.fromCharCode(((b1 & 0x1F) << 6) | (b2 & 0x3F));
|
|
uni = uni.substring(0,dst++).concat(c,utf.substr(src));
|
|
} else {
|
|
b2 = utf.charCodeAt(src++);
|
|
b3 = utf.charCodeAt(src++);
|
|
c = String.fromCharCode(((b1 & 0xF) << 12) | ((b2 & 0x3F) << 6) | (b3 & 0x3F));
|
|
uni = uni.substring(0,dst++).concat(c,utf.substr(src));
|
|
}
|
|
}
|
|
return uni;
|
|
}
|
|
|
|
function mozConvertUTF8ToUnicode(u)
|
|
{
|
|
try {
|
|
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
|
|
var converter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"].createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
|
|
converter.charset = "UTF-8";
|
|
} catch(ex) {
|
|
return manualConvertUTF8ToUnicode(u);
|
|
} // fallback
|
|
var s = converter.ConvertToUnicode(u);
|
|
var fin = converter.Finish();
|
|
return fin.length > 0 ? s+fin : s;
|
|
}
|
|
|
|
//# convert unicode string to a format suitable for saving to file
|
|
//# this should be UTF8, unless the browser does not support saving non-ASCII characters
|
|
function convertUnicodeToFileFormat(s)
|
|
{
|
|
return config.browser.isOpera || !window.netscape ? (config.browser.isIE ? convertUnicodeToHtmlEntities(s) : s) : mozConvertUnicodeToUTF8(s);
|
|
}
|
|
|
|
function convertUnicodeToHtmlEntities(s)
|
|
{
|
|
var re = /[^\u0000-\u007F]/g;
|
|
return s.replace(re,function($0) {return "&#" + $0.charCodeAt(0).toString() + ";";});
|
|
}
|
|
|
|
function convertUnicodeToUTF8(s)
|
|
{
|
|
// return convertUnicodeToFileFormat to allow plugin migration
|
|
return convertUnicodeToFileFormat(s);
|
|
}
|
|
|
|
function manualConvertUnicodeToUTF8(s)
|
|
{
|
|
return unescape(encodeURIComponent(s));
|
|
}
|
|
|
|
function mozConvertUnicodeToUTF8(s)
|
|
{
|
|
try {
|
|
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
|
|
var converter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"].createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
|
|
converter.charset = "UTF-8";
|
|
} catch(ex) {
|
|
return manualConvertUnicodeToUTF8(s);
|
|
} // fallback
|
|
var u = converter.ConvertFromUnicode(s);
|
|
var fin = converter.Finish();
|
|
return fin.length > 0 ? u + fin : u;
|
|
}
|
|
|
|
function convertUriToUTF8(uri,charSet)
|
|
{
|
|
if(window.netscape == undefined || charSet == undefined || charSet == "")
|
|
return uri;
|
|
try {
|
|
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
|
|
var converter = Components.classes["@mozilla.org/intl/utf8converterservice;1"].getService(Components.interfaces.nsIUTF8ConverterService);
|
|
} catch(ex) {
|
|
return uri;
|
|
}
|
|
return converter.convertURISpecToUTF8(uri,charSet);
|
|
}
|
|
|
|
function copyFile(dest,source)
|
|
{
|
|
return config.browser.isIE ? ieCopyFile(dest,source) : false;
|
|
}
|
|
|
|
function saveFile(fileUrl,content)
|
|
{
|
|
var r = mozillaSaveFile(fileUrl,content);
|
|
if(!r)
|
|
r = ieSaveFile(fileUrl,content);
|
|
if(!r)
|
|
r = javaSaveFile(fileUrl,content);
|
|
return r;
|
|
}
|
|
|
|
function loadFile(fileUrl)
|
|
{
|
|
var r = mozillaLoadFile(fileUrl);
|
|
if((r == null) || (r == false))
|
|
r = ieLoadFile(fileUrl);
|
|
if((r == null) || (r == false))
|
|
r = javaLoadFile(fileUrl);
|
|
return r;
|
|
}
|
|
|
|
function ieCreatePath(path)
|
|
{
|
|
try {
|
|
var fso = new ActiveXObject("Scripting.FileSystemObject");
|
|
} catch(ex) {
|
|
return null;
|
|
}
|
|
|
|
//# Remove the filename, if present. Use trailing slash (i.e. "foo\bar\") if no filename.
|
|
var pos = path.lastIndexOf("\\");
|
|
if(pos==-1)
|
|
pos = path.lastIndexOf("/");
|
|
if(pos!=-1)
|
|
path = path.substring(0,pos+1);
|
|
|
|
//# Walk up the path until we find a folder that exists
|
|
var scan = [path];
|
|
var parent = fso.GetParentFolderName(path);
|
|
while(parent && !fso.FolderExists(parent)) {
|
|
scan.push(parent);
|
|
parent = fso.GetParentFolderName(parent);
|
|
}
|
|
|
|
//# Walk back down the path, creating folders
|
|
for(i=scan.length-1;i>=0;i--) {
|
|
if(!fso.FolderExists(scan[i])) {
|
|
fso.CreateFolder(scan[i]);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Returns null if it can't do it, false if there's an error, true if it saved OK
|
|
function ieSaveFile(filePath,content)
|
|
{
|
|
ieCreatePath(filePath);
|
|
try {
|
|
var fso = new ActiveXObject("Scripting.FileSystemObject");
|
|
} catch(ex) {
|
|
//# alert("Exception while attempting to save\n\n" + ex.toString());
|
|
return null;
|
|
}
|
|
var file = fso.OpenTextFile(filePath,2,-1,0);
|
|
file.Write(content);
|
|
file.Close();
|
|
return true;
|
|
}
|
|
|
|
// Returns null if it can't do it, false if there's an error, or a string of the content if successful
|
|
function ieLoadFile(filePath)
|
|
{
|
|
try {
|
|
var fso = new ActiveXObject("Scripting.FileSystemObject");
|
|
var file = fso.OpenTextFile(filePath,1);
|
|
var content = file.ReadAll();
|
|
file.Close();
|
|
} catch(ex) {
|
|
//# alert("Exception while attempting to load\n\n" + ex.toString());
|
|
return null;
|
|
}
|
|
return content;
|
|
}
|
|
|
|
function ieCopyFile(dest,source)
|
|
{
|
|
ieCreatePath(dest);
|
|
try {
|
|
var fso = new ActiveXObject("Scripting.FileSystemObject");
|
|
fso.GetFile(source).Copy(dest);
|
|
} catch(ex) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Returns null if it can't do it, false if there's an error, true if it saved OK
|
|
function mozillaSaveFile(filePath,content)
|
|
{
|
|
if(window.Components) {
|
|
try {
|
|
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
|
|
var file = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
|
|
file.initWithPath(filePath);
|
|
if(!file.exists())
|
|
file.create(0,0x01B4);// 0x01B4 = 0664
|
|
var out = Components.classes["@mozilla.org/network/file-output-stream;1"].createInstance(Components.interfaces.nsIFileOutputStream);
|
|
out.init(file,0x22,0x04,null);
|
|
out.write(content,content.length);
|
|
out.flush();
|
|
out.close();
|
|
return true;
|
|
} catch(ex) {
|
|
//# alert("Exception while attempting to save\n\n" + ex);
|
|
return false;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
// Returns null if it can't do it, false if there's an error, or a string of the content if successful
|
|
function mozillaLoadFile(filePath)
|
|
{
|
|
if(window.Components) {
|
|
try {
|
|
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
|
|
var file = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
|
|
file.initWithPath(filePath);
|
|
if(!file.exists())
|
|
return null;
|
|
var inputStream = Components.classes["@mozilla.org/network/file-input-stream;1"].createInstance(Components.interfaces.nsIFileInputStream);
|
|
inputStream.init(file,0x01,0x04,null);
|
|
var sInputStream = Components.classes["@mozilla.org/scriptableinputstream;1"].createInstance(Components.interfaces.nsIScriptableInputStream);
|
|
sInputStream.init(inputStream);
|
|
var contents = sInputStream.read(sInputStream.available());
|
|
sInputStream.close();
|
|
inputStream.close();
|
|
return contents;
|
|
} catch(ex) {
|
|
//# alert("Exception while attempting to load\n\n" + ex);
|
|
return false;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
function javaUrlToFilename(url)
|
|
{
|
|
var f = "//localhost";
|
|
if(url.indexOf(f) == 0)
|
|
return url.substring(f.length);
|
|
var i = url.indexOf(":");
|
|
return i > 0 ? url.substring(i-1) : url;
|
|
}
|
|
|
|
function javaSaveFile(filePath,content)
|
|
{
|
|
try {
|
|
if(document.applets["TiddlySaver"])
|
|
return document.applets["TiddlySaver"].saveFile(javaUrlToFilename(filePath),"UTF-8",content);
|
|
} catch(ex) {
|
|
}
|
|
try {
|
|
var s = new java.io.PrintStream(new java.io.FileOutputStream(javaUrlToFilename(filePath)));
|
|
s.print(content);
|
|
s.close();
|
|
} catch(ex2) {
|
|
return null;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function javaLoadFile(filePath)
|
|
{
|
|
try {
|
|
if(document.applets["TiddlySaver"]) {
|
|
var ret = document.applets["TiddlySaver"].loadFile(javaUrlToFilename(filePath),"UTF-8");
|
|
if(!ret)
|
|
return null;
|
|
return String(ret);
|
|
}
|
|
} catch(ex) {
|
|
}
|
|
var content = [];
|
|
try {
|
|
var r = new java.io.BufferedReader(new java.io.FileReader(javaUrlToFilename(filePath)));
|
|
var line;
|
|
while((line = r.readLine()) != null)
|
|
content.push(String(line));
|
|
r.close();
|
|
} catch(ex2) {
|
|
return null;
|
|
}
|
|
return content.join("\n");
|
|
}
|
|
|