/*
* Created on Oct 31, 2007
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* Copyright @2007-2013 the original author or authors.
*/
package org.fest.swing.hierarchy;
import static org.fest.swing.awt.AWT.isSharedInvisibleFrame;
import static org.fest.util.Maps.newWeakHashMap;
import java.awt.Component;
import java.awt.Window;
import java.util.Collection;
import java.util.Map;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.fest.swing.annotation.RunsInCurrentThread;
/**
* A filter of windows to ignore in a component hierarchy.
*
* @author Alex Ruiz
*/
class WindowFilter {
private final ParentFinder parentFinder;
private final ChildrenFinder childrenFinder;
WindowFilter() {
this(new ParentFinder(), new ChildrenFinder());
}
WindowFilter(@Nonnull ParentFinder parentFinder, @Nonnull ChildrenFinder childrenFinder) {
this.parentFinder = parentFinder;
this.childrenFinder = childrenFinder;
}
// Map of components to ignore
final Map<Component, Boolean> ignored = newWeakHashMap();
// Map of components implicitly ignored; these will be removed if they are re-shown.
final Map<Component, Boolean> implicitlyIgnored = newWeakHashMap();
boolean isImplicitlyIgnored(@Nonnull Component c) {
return implicitlyIgnored.containsKey(c);
}
@RunsInCurrentThread
boolean isIgnored(@Nullable Component c) {
if (c == null) {
return false;
}
// TODO if ("sun.plugin.ConsoleWindow".equals(c.getClass().getName())) return !trackAppletConsole;
if (ignored.containsKey(c)) {
return true;
}
if (c instanceof Window && isIgnored(c.getParent())) {
return true;
}
return !(c instanceof Window) && isWindowIgnored(c);
}
private boolean isWindowIgnored(@Nullable Component c) {
Window w = parentFinder.windowFor(c);
return w != null && isIgnored(w);
}
void implicitlyIgnore(@Nonnull Component c) {
implicitlyIgnored.put(c, true);
}
@RunsInCurrentThread
void ignore(@Nonnull Component c) {
filter(c, true);
}
@RunsInCurrentThread
void recognize(@Nonnull Component c) {
filter(c, false);
}
@Nonnull Collection<Component> filtered() {
return ignored.keySet();
}
private void filter(@Nonnull Component c, boolean ignore) {
// Never filter the shared frame
if (isSharedInvisibleFrame(c)) {
for (Component child : childrenFinder.childrenOf(c)) {
filter(child, ignore);
}
return;
}
doFilter(c, ignore);
implicitlyIgnored.remove(c);
if (!(c instanceof Window)) {
return;
}
for (Window owned : ((Window) c).getOwnedWindows()) {
if (owned != null) {
filter(owned, ignore);
}
}
}
private void doFilter(@Nonnull Component c, boolean ignore) {
if (ignore) {
ignored.put(c, true);
return;
}
ignored.remove(c);
}
}