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use lexical closure of JS functions to bind data to a function for use as a callback. a=r=(not built)

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This commit is contained in:
dmose%mozilla.org 2000-08-08 02:56:44 +00:00
parent 49aebf5865
commit 31fca86c72
1 changed files with 25 additions and 4 deletions
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29
directory/xpcom/datasource/nsLDAPDataSource.js
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@ -59,6 +59,9 @@ ArrayEnumerator.prototype = {
this.array[index++] : null; }
}
function boundCallback() {}
// the datasource object itself
//
const NS_LDAPDATASOURCE_PROGID =
@ -237,6 +240,24 @@ nsLDAPDataSource.prototype = {
GetTargets: function(aSource, aProperty, aTruthValue) {
function generateBoundCallback() {
cb = new boundCallback();
cb.onLDAPMessage = function() {
// netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
if (DEBUG) {
dump("boundCallback() called with scope: \n\t" +
aSource.Value + "\n\t" + aProperty.Value +
"\n\t" + aTruthValue + "\n\n");
}
}
return cb;
}
if (DEBUG) {
dump("GetTargets() called with args: \n\t" + aSource.Value +
"\n\t" + aProperty.Value + "\n\t" + aTruthValue + "\n\n");
@ -246,11 +267,11 @@ nsLDAPDataSource.prototype = {
.getService(Components.interfaces.nsILDAPURL);
url.spec = aSource.Value;
this.getConnection(url.host, url.port);
this.getConnection(url.host, url.port, generateBoundCallback());
return new ArrayEnumerator(new Array());
},
/**
* Get a cursor to iterate over all the arcs that originate in
* a resource.
@ -283,7 +304,7 @@ nsLDAPDataSource.prototype = {
// XXX need to support non-null passwords & bind names
//
getConnection : function(aServer, aPort)
getConnection : function(aServer, aPort, aCallback)
{
// initialize our connection
@ -295,7 +316,7 @@ nsLDAPDataSource.prototype = {
this.mOperation = Components.classes["mozilla.network.ldapoperation"].
createInstance(Components.interfaces.
nsILDAPOperation);
this.mOperation.init(this.mConnection, this);
this.mOperation.init(this.mConnection, aCallback);
// bind to the server. we'll get a callback when this finishes.
//