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mirror of https://github.com/Jermolene/TiddlyWiki5 synced 2024-11-05 17:46:19 +00:00
TiddlyWiki5/tw2/source/tiddlywiki/jquery/plugins/jQuery.twFile.js
Jeremy Ruston a1c8ac624f Added first pass at support for building TiddlyWiki 2.6.x with TW5
There are still some whitespace and attribute ordering issues, but the
result runs correctly.
2012-05-29 22:02:38 +01:00

334 lines
11 KiB
JavaScript
Executable File

/*
jQuery.twFile.js
jQuery plugin for loading a file and saving data to a file
Copyright (c) UnaMesa Association 2009
Triple licensed under the BSD, MIT and GPL licenses:
http://www.opensource.org/licenses/bsd-license.php
http://www.opensource.org/licenses/mit-license.php
http://www.gnu.org/licenses/gpl.html
*/
(function($) {
if(!$.twFile) {
$.twFile = {};
}
$.extend($.twFile,{
currentDriver: null,
driverList: ["tiddlySaver", "activeX","javaLiveConnect", "mozilla"],
// Loads the contents of a text file from the local file system
// filePath is the path to the file in these formats:
// x:\path\path\path\filename - PC local file
// \\server\share\path\path\path\filename - PC network file
// /path/path/path/filename - Mac/Unix local file
// returns the text of the file, or null if the operation cannot be performed or false if there was an error
load: function(filePath) {
var d = this.getDriver();
return d ? d.loadFile(filePath) : null;
},
// Saves a string to a text file on the local file system
// filePath is the path to the file in the format described above
// content is the string to save
// returns true if the file was saved successfully, or null if the operation cannot be performed or false if there was an error
save: function(filePath,content) {
var d = this.getDriver();
return d ? d.saveFile(filePath,content) : null;
},
// Copies a file on the local file system
// dest is the path to the destination file in the format described above
// source is the path to the source file in the format described above
// returns true if the file was copied successfully, or null if the operation cannot be performed or false if there was an error
copy: function(dest,source) {
var d = this.getDriver();
if(d && d.copyFile)
return d.copyFile(dest,source);
else
return null;
},
// Converts a local file path from the format returned by document.location into the format expected by this plugin
// url is the original URL of the file
// returns the equivalent local file path
convertUriToLocalPath: function (url) {
// Remove any location or query part of the URL
var originalPath = url.split("#")[0].split("?")[0];
// Convert file://localhost/ to file:///
if(originalPath.indexOf("file://localhost/") == 0)
originalPath = "file://" + originalPath.substr(16);
// Convert to a native file format
//# "file:///x:/path/path/path..." - pc local file --> "x:\path\path\path..."
//# "file://///server/share/path/path/path..." - FireFox pc network file --> "\\server\share\path\path\path..."
//# "file:///path/path/path..." - mac/unix local file --> "/path/path/path..."
//# "file://server/share/path/path/path..." - pc network file --> "\\server\share\path\path\path..."
var localPath;
if(originalPath.charAt(9) == ":") // PC local file
localPath = unescape(originalPath.substr(8)).replace(new RegExp("/","g"),"\\");
else if(originalPath.indexOf("file://///") == 0) // Firefox PC network file
localPath = "\\\\" + unescape(originalPath.substr(10)).replace(new RegExp("/","g"),"\\");
else if(originalPath.indexOf("file:///") == 0) // Mac/UNIX local file
localPath = unescape(originalPath.substr(7));
else if(originalPath.indexOf("file:/") == 0) // Mac/UNIX local file
localPath = unescape(originalPath.substr(5));
else if(originalPath.indexOf("//") == 0) // PC network file
localPath = "\\\\" + unescape(originalPath.substr(7)).replace(new RegExp("/","g"),"\\");
return localPath || originalPath;
},
// Deferred initialization for any drivers that need it
// returns a Deferred object so callback that executes as soon
// as twFile is ready can be attached
initialize: function() {
return $.Deferred(function(dfd) {
for(var t in drivers) {
if(drivers[t].deferredInit)
drivers[t].deferredInit();
}
// Kludge: give the <applet> some time to load
setTimeout(dfd.resolve, 0);
});
},
// Private functions
// Returns a reference to the current driver
getDriver: function() {
if(this.currentDriver === null) {
for(var t=0; t<this.driverList.length; t++) {
if(this.currentDriver === null && drivers[this.driverList[t]].isAvailable && drivers[this.driverList[t]].isAvailable())
this.currentDriver = drivers[this.driverList[t]];
}
}
return this.currentDriver;
}
});
// Automatically initialize on document.ready()
$(function() {
$.twFile.initialize();
});
// Private driver implementations for each browser
var drivers = {};
// Internet Explorer driver
drivers.activeX = {
name: "activeX",
isAvailable: function() {
try {
var fso = new ActiveXObject("Scripting.FileSystemObject");
} catch(ex) {
return false;
}
return true;
},
loadFile: function(filePath) {
// Returns null if it can't do it, false if there's an error, or a string of the content if successful
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;
},
createPath: function(path) {
//# Remove the filename, if present. Use trailing slash (i.e. "foo\bar\") if no filename.
var 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];
try {
var fso = new ActiveXObject("Scripting.FileSystemObject");
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;
} catch(ex) {
}
return false;
},
copyFile: function(dest,source) {
drivers.activeX.createPath(dest);
try {
var fso = new ActiveXObject("Scripting.FileSystemObject");
fso.GetFile(source).Copy(dest);
} catch(ex) {
return false;
}
return true;
},
saveFile: function(filePath,content) {
// Returns null if it can't do it, false if there's an error, true if it saved OK
drivers.activeX.createPath(filePath);
try {
var fso = new ActiveXObject("Scripting.FileSystemObject");
var file = fso.OpenTextFile(filePath,2,-1,0);
file.Write(content);
file.Close();
} catch (ex) {
return null;
}
return true;
}
};
// Mozilla driver
drivers.mozilla = {
name: "mozilla",
isAvailable: function() {
return !!window.Components;
},
loadFile: function(filePath) {
// Returns null if it can't do it, false if there's an error, or a string of the content if successful
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,0x01,00004,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;
},
saveFile: function(filePath,content) {
// Returns null if it can't do it, false if there's an error, true if it saved OK
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(0,0664);
var out = Components.classes["@mozilla.org/network/file-output-stream;1"].createInstance(Components.interfaces.nsIFileOutputStream);
out.init(file,0x20|0x02,00004,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;
}
};
// TiddlySaver driver
drivers.tiddlySaver = {
name: "tiddlySaver",
deferredInit: function() {
if(!document.applets["TiddlySaver"] && /* !$.browser.mozilla && !$.browser.msie && */ document.location.toString().substr(0,5) == "file:") {
$(document.body).append("<applet style='position:absolute;left:-1px' name='TiddlySaver' code='TiddlySaver.class' archive='TiddlySaver.jar' width='1'height='1'></applet>");
}
},
isAvailable: function() {
var isReady = false;
try {
isReady = !!document.applets["TiddlySaver"] &&
($.browser.msie || document.applets["TiddlySaver"].isActive) &&
( document.applets["TiddlySaver"].isActive() );
} catch (ex) {
isReady = false;
}
return isReady;
},
loadFile: function(filePath) {
var r;
try {
if(document.applets["TiddlySaver"]) {
r = document.applets["TiddlySaver"].loadFile(javaUrlToFilename(filePath),"UTF-8");
return (r === undefined || r === null) ? null : String(r);
}
} catch(ex) {
}
return null;
},
saveFile: function(filePath,content) {
try {
if(document.applets["TiddlySaver"])
return document.applets["TiddlySaver"].saveFile(javaUrlToFilename(filePath),"UTF-8",content);
} catch(ex) {
}
return null;
}
};
// Java LiveConnect driver
drivers.javaLiveConnect = {
name: "javaLiveConnect",
isAvailable: function() {
return !!window.java && !!window.java.io && !!window.java.io.FileReader;
},
loadFile: function(filePath) {
var r;
var content = [];
try {
r = new java.io.BufferedReader(new java.io.FileReader(javaUrlToFilename(filePath)));
var line;
while((line = r.readLine()) != null)
content.push(new String(line));
r.close();
} catch(ex) {
return null;
}
return content.join("\n") + "\n";
},
saveFile: function(filePath,content) {
try {
var s = new java.io.PrintStream(new java.io.FileOutputStream(javaUrlToFilename(filePath)));
s.print(content);
s.close();
} catch(ex) {
return null;
}
return true;
}
};
// Private utilities
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;
}
})(jQuery);