MsgRouting
AwtScrollbar::HandleEvent(MSG *msg, BOOL synthetic)
{
if (msg->message == WM_LBUTTONDOWN || msg->message == WM_LBUTTONDBLCLK) {
if (IsFocusable() && AwtComponent::sm_focusOwner != GetHWnd()) {
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
jobject target = GetTarget(env);
env->CallStaticVoidMethod
(AwtKeyboardFocusManager::keyboardFocusManagerCls,
AwtKeyboardFocusManager::heavyweightButtonDownMID,
target, ((jlong)msg->time) & 0xFFFFFFFF);
env->DeleteLocalRef(target);
AwtSetFocus();
}
// Left button press was already routed to default window
// procedure in the WmMouseDown above. Propagating synthetic
// press seems like a bad idea as internal message loop
// doesn't know how to unwrap synthetic release.
delete msg;
return mrConsume;
}
else {
return AwtComponent::HandleEvent(msg, synthetic);
}
}
MsgRouting AwtCanvas::HandleEvent(MSG *msg, BOOL synthetic)
{
if (msg->message == WM_LBUTTONDOWN || msg->message == WM_LBUTTONDBLCLK) {
/*
* Fix for BugTraq ID 4041703: keyDown not being invoked.
* Give the focus to a Canvas or Panel if it doesn't have heavyweight
* subcomponents so that they will behave the same way as on Solaris
* providing a possibility of giving keyboard focus to an empty Applet.
* Since ScrollPane doesn't receive focus on mouse press on Solaris,
* HandleEvent() is overriden there to do nothing with focus.
*/
if (AwtComponent::sm_focusOwner != GetHWnd() &&
::GetWindow(GetHWnd(), GW_CHILD) == NULL)
{
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
jobject target = GetTarget(env);
env->CallStaticVoidMethod
(AwtKeyboardFocusManager::keyboardFocusManagerCls,
AwtKeyboardFocusManager::heavyweightButtonDownMID,
target, ((jlong)msg->time) & 0xFFFFFFFF);
env->DeleteLocalRef(target);
AwtSetFocus();
}
}
return AwtComponent::HandleEvent(msg, synthetic);
}
// Work around a windows bug descrbed in KB article Q73839. Reset
// focus on scrollbars to update focus indicator. The article advises
// to disable/enable the scrollbar, but simply resetting the focus is
// sufficient.
void
AwtScrollbar::UpdateFocusIndicator()
{
if (IsFocusable()) {
m_ignoreFocusEvents = TRUE;
::SetFocus(NULL);
AwtSetFocus();
m_ignoreFocusEvents = FALSE;
}
}
