http://trac.tiddlywiki.org/changeset/9546
JeremyRuston
2009-04-21 11:17:04 +0000 (Tue, 21 Apr 2009)
106
[fileplugin] Substantial refactoring to structure each file system technology
as a separate driver (#1036)
---------------
U Trunk/core/jquery/plugins/jquery.file.js
---------------
Modified: Trunk/core/jquery/plugins/jquery.file.js
===================================================================
--- Trunk/core/jquery/plugins/jquery.file.js 2009-04-21 11:16:34 UTC (rev
9545)
+++ Trunk/core/jquery/plugins/jquery.file.js 2009-04-21 11:17:04 UTC (rev
9546)
@@ -11,199 +11,244 @@
*/
(function($) {
-
- $(function() {
- if(!document.applets["TiddlySaver"] && !$.browser.mozilla &&
!$.browser.msie) {
- $(document.body).append("<applet
style='position:absolute;left:-1px' name='TiddlySaver' code='TiddlySaver.class'
archive='TiddlySaver.jar' width='1'height='1'></applet>");
- }
- });
if(!$.file) {
$.file = {};
}
$.extend($.file,{
+ currentDriver: null,
+ driverList: ["activeX", "mozilla", "tiddlySaver",
"javaLiveConnect"],
+
+ 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;
+ },
load: function(filePath) {
- var r = mozillaLoadFile(filePath);
- if((r == null) || (r == false))
- r = ieLoadFile(filePath);
- if((r == null) || (r == false))
- r = appletLoadFile(filePath);
- if((r == null) || (r == false))
- r = javaLoadFile(filePath);
- return r;
+ return this.getDriver().loadFile(filePath);
},
save: function(filePath,content) {
- var r = mozillaSaveFile(filePath,content);
- if(!r)
- r = ieSaveFile(filePath,content);
- if(!r)
- r = appletSaveFile(filePath,content);
- if(!r)
- r = javaSaveFile(filePath,content);
- return r;
+ return this.getDriver().saveFile(filePath,content);
},
copy: function(dest,source) {
- return $.browser.msie ? ieCopyFile(dest,source) : false;
+ if(this.getDriver().copyFile)
+ return this.currentDriver.copyFile(dest,source);
+ else
+ return false;
}
});
- // Private functions.
- function ieLoadFile(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;
- }
-
- function mozillaLoadFile(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) {
+ // Private implementations for each browser
+
+ var drivers = {};
+
+ drivers.activeX = {
+ name: "activeX",
+ isAvailable: function() {
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,0x01,4,null);
- var converter =
Components.classes["@mozilla.org/intl/converter-input-stream;1"].createInstance(Components.interfaces.nsIConverterInputStream);
- converter.init(inputStream, "UTF-8", 0, 0);
- var buffer = {};
- var result = [];
- while(converter.readString(-1,buffer) != 0) {
- result.push(buffer.value);
+ 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);
}
- converter.close();
- inputStream.close();
- return result.join("");
+ //# 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) {
- //# alert("Exception while attempting to
load\n\n" + 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) {
+alert("One");
+ // Returns null if it can't do it, false if there's an
error, true if it saved OK
+ drivers.activeX.createPath(filePath);
+alert("2");
+ try {
+ var fso = new
ActiveXObject("Scripting.FileSystemObject");
+alert("3");
+ var file = fso.OpenTextFile(filePath,2,-1,0);
+alert("3.2");
+ file.Write(content);
+alert("3.4");
+ file.Close();
+alert("4");
+ } catch (ex) {
+ return null;
+ }
+alert("5");
+ return true;
}
- 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 appletLoadFile(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);
+ 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,0x01,4,null);
+ var converter =
Components.classes["@mozilla.org/intl/converter-input-stream;1"].createInstance(Components.interfaces.nsIConverterInputStream);
+ converter.init(inputStream, "UTF-8", 0,
0);
+ var buffer = {};
+ var result = [];
+ while(converter.readString(-1,buffer)
!= 0) {
+ result.push(buffer.value);
+ }
+ converter.close();
+ inputStream.close();
+ return result.join("");
+ } catch(ex) {
+ //# alert("Exception while attempting
to load\n\n" + ex);
+ return false;
+ }
}
- } catch(ex) {
- }
- return null;
- }
-
- function javaLoadFile(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";
- }
-
- function ieCreatePath(path) {
- try {
- var fso = new
ActiveXObject("Scripting.FileSystemObject");
- } catch(ex) {
+ },
+ 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,0x22,4,null);
+ var converter =
Components.classes["@mozilla.org/intl/converter-output-stream;1"].createInstance(Components.interfaces.nsIConverterOutputStream);
+ converter.init(out, "UTF-8", 0, 0);
+ converter.writeString(content);
+ converter.close();
+ out.close();
+ return true;
+ } catch(ex) {
+ alert("Exception while attempting to
save\n\n" + ex);
+ return false;
+ }
+ }
return null;
}
+ };
+
+ $(function() {
+ drivers.tiddlySaver.loadApplet();
+ });
- //# Remove the filename, if present. Use trailing slash (i.e.
"foo\bar\") if no filename.
- var pos = path.lastIndexOf("\\");
- if(pos!=-1)
- path = path.substring(0,pos+1);
-
- //# Walk up the path until we find a folder that exists
- var scan = [path];
- var parent = fso.GetParentFolderName(path);
- while(parent && !fso.FolderExists(parent)) {
- scan.push(parent);
- parent = fso.GetParentFolderName(parent);
- }
-
- //# Walk back down the path, creating folders
- for(i=scan.length-1;i>=0;i--) {
- if(!fso.FolderExists(scan[i])) {
- fso.CreateFolder(scan[i]);
+ drivers.tiddlySaver = {
+ name: "tiddlySaver",
+ loadApplet: function() {
+ if(!document.applets["TiddlySaver"] &&
!$.browser.mozilla && !$.browser.msie) {
+ $(document.body).append("<applet
style='position:absolute;left:-1px' name='TiddlySaver' code='TiddlySaver.class'
archive='TiddlySaver.jar' width='1'height='1'></applet>");
}
- }
- return true;
- }
-
- function ieCopyFile(dest,source) {
- ieCreatePath(dest);
- try {
- var fso = new
ActiveXObject("Scripting.FileSystemObject");
- fso.GetFile(source).Copy(dest);
- } catch(ex) {
- return false;
- }
- return true;
- }
-
- function ieSaveFile(filePath,content) {
- // Returns null if it can't do it, false if there's an error,
true if it saved OK
- ieCreatePath(filePath);
- try {
- var fso = new
ActiveXObject("Scripting.FileSystemObject");
- } catch(ex) {
- //# alert("Exception while attempting to save\n\n" +
ex.toString());
+ },
+ isAvailable: function() {
+ return !!document.applets["TiddlySaver"];
+ },
+ 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;
}
- var file = fso.OpenTextFile(filePath,2,-1,0);
- file.Write(content);
- file.Close();
- return true;
}
- function mozillaSaveFile(filePath,content) {
- // Returns null if it can't do it, false if there's an error,
true if it saved OK
- if(window.Components) {
+ drivers.javaLiveConnect = {
+ name: "javaLiveConnect",
+ isAvailable: function() {
+ return !!window.java && !!window.java.io &&
!!window.java.io.FileReader;
+ },
+ loadFile: function(filePath) {
+ var r;
+ var content = [];
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,0x22,4,null);
- var converter =
Components.classes["@mozilla.org/intl/converter-output-stream;1"].createInstance(Components.interfaces.nsIConverterOutputStream);
- converter.init(out, "UTF-8", 0, 0);
- converter.writeString(content);
- converter.close();
- out.close();
- return true;
+ 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) {
- alert("Exception while attempting to save\n\n"
+ ex);
- return false;
+ 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;
}
- return null;
}
function javaUrlToFilename(url) {
@@ -214,24 +259,4 @@
return i > 0 ? url.substring(i-1) : url;
}
- function appletSaveFile(filePath,content) {
- try {
- if(document.applets["TiddlySaver"])
- return
document.applets["TiddlySaver"].saveFile(javaUrlToFilename(filePath),"UTF-8",content);
- } catch(ex) {
- }
- return null;
- }
-
- function javaSaveFile(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;
- }
-
})(jQuery);
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