--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/browser/InputStream.d	Sat Aug 09 17:00:02 2008 +0200
@@ -0,0 +1,135 @@
+/*******************************************************************************
+ * Copyright (c) 2003, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+module dwt.browser.InputStream;
+
+import dwt.dwthelper.utils;
+
+import dwt.internal.C;
+import dwt.internal.mozilla.XPCOM;
+import dwt.internal.mozilla.XPCOMObject;
+import dwt.internal.mozilla.nsID;
+import dwt.internal.mozilla.nsIInputStream;
+import dwt.internal.mozilla.nsISupports;
+
+class InputStream {
+    XPCOMObject inputStream;
+    int refCount = 0;
+
+    byte[] buffer;
+    int index = 0;
+    
+InputStream (byte[] buffer) {
+    this.buffer = buffer;
+    index = 0;
+    createCOMInterfaces ();
+}
+
+int AddRef () {
+    refCount++;
+    return refCount;
+}
+
+void createCOMInterfaces () {
+    /* Create each of the interfaces that this object implements */
+    inputStream = new XPCOMObject (new int[] {2, 0, 0, 0, 1, 3, 4, 1}) {
+        public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);}
+        public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();}
+        public int /*long*/ method2 (int /*long*/[] args) {return Release ();}
+        public int /*long*/ method3 (int /*long*/[] args) {return Close ();}
+        public int /*long*/ method4 (int /*long*/[] args) {return Available (args[0]);}
+        public int /*long*/ method5 (int /*long*/[] args) {return Read (args[0], (int)/*64*/args[1], args[2]);}
+        public int /*long*/ method6 (int /*long*/[] args) {return ReadSegments (args[0], args[1], (int)/*64*/args[2], args[3]);}
+        public int /*long*/ method7 (int /*long*/[] args) {return IsNonBlocking (args[0]);}
+    };
+}
+
+void disposeCOMInterfaces () {
+    if (inputStream !is null) {
+        inputStream.dispose ();
+        inputStream = null; 
+    }
+}
+
+int /*long*/ getAddress () {
+    return inputStream.getAddress ();
+}
+
+int QueryInterface (int /*long*/ riid, int /*long*/ ppvObject) {
+    if (riid is 0 || ppvObject is 0) return XPCOM.NS_ERROR_NO_INTERFACE;
+    nsID guid = new nsID ();
+    XPCOM.memmove (guid, riid, nsID.sizeof);
+    
+    if (guid.Equals (nsISupports.NS_ISUPPORTS_IID)) {
+        XPCOM.memmove (ppvObject, new int /*long*/[] {inputStream.getAddress ()}, C.PTR_SIZEOF);
+        AddRef ();
+        return XPCOM.NS_OK;
+    }
+    if (guid.Equals (nsIInputStream.NS_IINPUTSTREAM_IID)) {
+        XPCOM.memmove (ppvObject, new int /*long*/[] {inputStream.getAddress ()}, C.PTR_SIZEOF);
+        AddRef ();
+        return XPCOM.NS_OK;
+    }   
+    XPCOM.memmove (ppvObject, new int /*long*/[] {0}, C.PTR_SIZEOF);
+    return XPCOM.NS_ERROR_NO_INTERFACE;
+}
+            
+int Release () {
+    refCount--;
+    if (refCount is 0) disposeCOMInterfaces ();
+    return refCount;
+}
+    
+/* nsIInputStream implementation */
+
+int Close () {
+    buffer = null;
+    index = 0;
+    return XPCOM.NS_OK;
+}
+
+int Available (int /*long*/ _retval) {
+    int available = buffer is null ? 0 : buffer.length - index;
+    XPCOM.memmove (_retval, new int[] {available}, 4);
+    return XPCOM.NS_OK;
+}
+
+int Read(int /*long*/ aBuf, int aCount, int /*long*/ _retval) {
+    int max = Math.min (aCount, buffer is null ? 0 : buffer.length - index);
+    if (max > 0) {
+        byte[] src = new byte[max];
+        System.arraycopy (buffer, index, src, 0, max);
+        XPCOM.memmove (aBuf, src, max);
+        index += max;
+    }
+    XPCOM.memmove(_retval, new int[] {max}, 4);
+    return XPCOM.NS_OK;
+}
+
+int ReadSegments (int /*long*/ aWriter, int /*long*/ aClosure, int aCount, int /*long*/ _retval) {
+    int max = Math.min (aCount, buffer is null ? 0 : buffer.length - index);
+    int cnt = max;
+    while (cnt > 0) {
+        int[] aWriteCount = new int[1];
+        int /*long*/ rc = XPCOM.Call (aWriter, getAddress (), aClosure, buffer, index, cnt, aWriteCount);
+        if (rc !is XPCOM.NS_OK) break;
+        index += aWriteCount[0];
+        cnt -= aWriteCount[0];
+    }
+    XPCOM.memmove (_retval, new int[] {max - cnt}, 4);
+    return XPCOM.NS_OK;
+}
+
+int IsNonBlocking (int /*long*/ _retval) {
+    /* blocking */
+    XPCOM.memmove (_retval, new int[] {0}, 4);
+    return XPCOM.NS_OK;
+}       
+}