Re: Need to make a Cocoa Java app email some text
Re: Need to make a Cocoa Java app email some text
- Subject: Re: Need to make a Cocoa Java app email some text
- From: "Nathan V. Roberts" <email@hidden>
- Date: Thu, 13 Dec 2001 16:24:41 -0600
OK folks, here is the problem (I am using the Cocoa Java API's and I
am a novice): I have an app, which upon clicking a button, I want
it to take the text from an NSTextView and open the users default
mail program and insert the text in the body of an email message. I
have tried using NSWorkspace.sharedWorkspace().openURL() and put in
a URL that has "mailto:"; in it. This works, except to get the text
in the email you have to encode it and so when it appears in the
email it has a "+" between every word. There is an Obj-C class,
something like, NSMailMessage, which isn't available for Java. It
seems to me I have two options: 1) get sun's java mail classes or 2)
bridge the Obj-C NSMail-whatever class. If I do number 1, where do
I put the .jar files so that I can import them into my classes in
Project Builder? If I do number 2, well, I have no idea how to do
number 2... Anyone have any suggestions?
I had a similar goal a while back, and came up with a fairly simple
solution. If you run through your string searching for spaces, and
replace them with (20 is the hex representation of the ASCII
value of space), that takes care of the spaces. For a more
general-purpose approach (one that'll escape newlines as well, etc.),
I wrote a couple routines. I didn't need them to be fast, so they
almost certainly aren't, and they could certainly be extended to
cover more of the escapable characters (just add more
urlEncoder.put()'s), but here they are.
Nate
import java.util.*;
public String urlEncode(String urlToEncode) {
Hashtable urlEncoder = new Hashtable(7);
urlEncoder.put("%", "%"); //% needs escaping first
urlEncoder.put("\n", "
");
urlEncoder.put(" ", " ");
urlEncoder.put("<", "<");
urlEncoder.put("/", "/");
urlEncoder.put(">", ">");
urlEncoder.put("?", "?");
urlEncoder.put("&", "&");
Enumeration keys = urlEncoder.keys();
while (keys.hasMoreElements()) {
String key = (String) keys.nextElement();
String value = (String) urlEncoder.get(key);
urlToEncode = findAndReplace(urlToEncode, key, value);
}
return urlToEncode;
}
public String findAndReplace(String theString, String find,
String replace) {
String newString = "";
int findlength = find.length();
int replacelength = replace.length();
int prevMatch = -findlength;
boolean moreMatches;
if (theString.indexOf(find) != -1) {
moreMatches = true;
} else {
moreMatches = false;
newString = theString;
}
while (moreMatches) {
int matchIndex = theString.indexOf(find, prevMatch + findlength);
if (matchIndex >= 0) {
newString +=
theString.substring(prevMatch+findlength, matchIndex) + replace;
prevMatch = matchIndex;
} else {
newString += theString.substring(prevMatch+findlength);
moreMatches = false;
}
}
return newString;
}