[gui][PATCH] Implement AWT keyboard focus management

[Thomas Fitzsimmons]

Hello,

This patch implements the classes and methods required for proper AWT
keyboard focus management.  Minimal focus test cases work, but more
advanced cases fail currently.  I'm going to check this in on libgcj's
java-gui-branch and I'll fix the remaining problems/FIXMEs there.

Tom

2004-04-22  Thomas Fitzsimmons  <address@hidden>

        * gnu/java/awt/peer/gtk/GtkComponentPeer.java,
        jni/gtk-peer/gnu_java_awt_peer_gtk_GtkComponentPeer.c
        (handleEvent): Dispatch key press and key release events to
        backing widget.
        (requestFocus): Post a FOCUS_GAINED event to the event queue.
        (gtkWidgetRequestFocus): New method.
        (gtkWidgetDispatchKeyEvent): Likewise.
        * java/awt/Component.java (requestFocus, requestFocus(boolean),
        requestFocusInWindow, requestFocusInWindow(boolean),
        getFocusCycleRootAncestor, nextFocus, transferFocus,
        transferFocusBackward, transferFocusUpCycle, hasFocus,
        isFocusOwner): Implement and document focus-handling methods.
        (setFocusTraversalKeys): Inherit focus traversal keys when
        keystrokes argument is null.  Fix focus-handling documentation
        throughout class.
        * java/awt/Container.java (setFocusTraversalKeys,
        getFocusTraversalKeys, areFocusTraversalKeysSet,
        isFocusCycleRoot, setFocusTraversalPolicy,
        getFocusTraversalPolicy, isFocusTraversalPolicySet,
        setFocusCycleRoot, isFocusCycleRoot, transferFocusDownCycle):
        Implement and document focus-handling methods.
        (transferFocusBackward): Remove method.
        (readObject, writeObject): Implement and document serialization
        methods.
        * java/awt/ContainerOrderFocusTraversalPolicy.java: Implement
        and document.
        * java/awt/DefaultFocusTraversalPolicy.java: Implement and
        document.
        * java/awt/DefaultKeyboardFocusManager.java: Implement and
        partially document.
        * java/awt/EventDispatchThread.java (run): Set default keyboard
        focus manager.  Attempt to dispatch each event to the keyboard
        focus manager before normal dispatch.
        * java/awt/KeyboardFocusManager.java: Implement and partially
        document.
        * java/awt/Window.java (Window): Set focusCycleRoot to true.
        (show): Focus initial component when window is shown for the
        first time.
        * jni/gtk-peer/gnu_java_awt_peer_gtk_GtkEvents.c
        (pre_event_handler): Replace complex key press and key release
        logic with simple callbacks into GtkComponentPeer.
        * jni/gtk-peer/gtkpeer.h: Fix FOCUS_GAINED/FOCUS_LOST reversal.

focus-handling.patch
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