2002/05/28 18:30:30

[org.ibex.core.git] / src / org / xwt / XWT.java

diff --git a/src/org/xwt/XWT.java b/src/org/xwt/XWT.java
index 1789743..7c37978 100644 (file)
--- a/src/org/xwt/XWT.java
+++ b/src/org/xwt/XWT.java
@@ -12,6 +12,10 @@ import org.mozilla.javascript.*;
 public final class XWT extends JSObject {
 
     public static final XWT singleton = new XWT();
+
+    /** each key is a string representing a filename which the user has already given XWT permission to write to */
+    private static Hashtable safeFiles = new Hashtable();
+
     public String getClassName() { return "XWT"; }
     private XWT() { setSeal(true); }
 
@@ -40,6 +44,10 @@ public final class XWT extends JSObject {
         else if (name.equals("screenHeight")) return new Integer(Platform.getScreenHeight());
         else if (name.equals("static")) return Static.getStatic("");
         else if (name.equals("theme")) return theme;
+        else if (name.equals("openFile")) return openFile;
+        else if (name.equals("saveFile")) return saveFile;
+        else if (name.equals("saveFileAs")) return saveFileAs;
+        else if (name.equals("utfEncode")) return utfEncode;
         else if (name.equals("button")) {
             if (Surface.button1 && !Surface.button2 && !Surface.button3) return new Integer(1);
             else if (!Surface.button1 && Surface.button2 && !Surface.button3) return new Integer(1);
@@ -209,6 +217,63 @@ public final class XWT extends JSObject {
             }
         };
 
+    private static final JSFunction openFile = new JSFunction() {
+            public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
+                if (args == null || args.length != 1) return null;
+                String file = Platform.fileDialog(args[0].toString(), false);
+                return file == null ? null : new ByteStream(file);
+            }
+        };
+
+    private static final JSFunction saveFile = new JSFunction() {
+            public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
+                if (args == null || args.length != 2) return null;
+                if (!(args[1] instanceof ByteStream)) return null;
+                String file = args[0].toString();
+                if (safeFiles.get(Platform.isCaseSensitive() ? file : file.toLowerCase()) == null) {
+                    file = Platform.fileDialog(file, true);
+                    if (file == null) return null;
+                    System.out.println(">>" + file + "<<");
+                    safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
+                }
+                try {
+                    System.out.println("WRITING TO " + file);
+                    ((ByteStream)args[1]).writeTo(new FileOutputStream(file));
+                    return null;
+                } catch (IOException e) {
+                    if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
+                    if (Log.on) Log.log(ByteStream.class, e);
+                    throw new JavaScriptException("error while writing a ByteStream to a file");
+                }
+            }
+        };
+
+    private static final JSFunction saveFileAs = new JSFunction() {
+            public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
+                if (args == null || args.length != 2) return null;
+                if (!(args[1] instanceof ByteStream)) return null;
+                String file = args[0].toString();
+                file = Platform.fileDialog(file, true);
+                if (file == null) return null;
+                safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
+                try {
+                    ((ByteStream)args[1]).writeTo(new FileOutputStream(file));
+                    return null;
+                } catch (IOException e) {
+                    if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
+                    if (Log.on) Log.log(ByteStream.class, e);
+                    throw new JavaScriptException("error while writing a ByteStream to a file");
+                }
+            }
+        };
+
+    private static final JSFunction utfEncode = new JSFunction() {
+            public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
+                if (args == null || args.length != 1) return null;
+                return new ByteStream(args[0].toString().getBytes());
+            }
+        };
+
 }