/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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.
*/
package pivot.wtk.skin;
import pivot.wtk.Button;
import pivot.wtk.Component;
import pivot.wtk.ComponentKeyListener;
import pivot.wtk.Direction;
import pivot.wtk.Display;
import pivot.wtk.Keyboard;
import pivot.wtk.Menu;
import pivot.wtk.MenuBar;
import pivot.wtk.MenuPopup;
import pivot.wtk.Mouse;
import pivot.wtk.Point;
import pivot.wtk.Window;
import pivot.wtk.WindowStateListener;
/**
* Abstract base class for menu bar item skins.
*
* @author gbrown
*/
public abstract class MenuBarItemSkin extends ButtonSkin implements MenuBar.ItemListener {
protected MenuPopup menuPopup = new MenuPopup();
private WindowStateListener menuPopupWindowListener = new WindowStateListener.Adapter() {
public void windowClosed(Window window, Display display) {
MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
if (menuBarItem.isFocused()) {
Component.clearFocus();
} else {
repaintComponent();
}
MenuBar menuBar = menuBarItem.getMenuBar();
if (!menuBar.containsFocus()) {
menuBar.setActive(false);
}
}
};
public MenuBarItemSkin() {
menuPopup.getWindowStateListeners().add(menuPopupWindowListener);
}
@Override
public void install(Component component) {
super.install(component);
MenuBar.Item menuBarItem = (MenuBar.Item)component;
menuBarItem.getItemListeners().add(this);
menuPopup.setMenu(menuBarItem.getMenu());
}
@Override
public void uninstall() {
MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
menuBarItem.getItemListeners().remove(this);
menuPopup.close();
menuPopup.setMenu(null);
super.uninstall();
}
@Override
public void mouseOver(Component component) {
super.mouseOver(component);
MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
MenuBar menuBar = menuBarItem.getMenuBar();
if (menuBar.isActive()) {
menuBarItem.requestFocus();
}
}
@Override
public boolean mouseDown(Component component, Mouse.Button button, int x, int y) {
boolean consumed = super.mouseDown(component, button, x, y);
MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
menuBarItem.requestFocus();
return consumed;
}
@Override
public boolean mouseClick(Component component, Mouse.Button button, int x, int y, int count) {
boolean consumed = super.mouseClick(component, button, x, y, count);
MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
menuBarItem.press();
return consumed;
}
@Override
public boolean keyPressed(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
boolean consumed = false;
MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
if (keyCode == Keyboard.KeyCode.UP) {
menuPopup.requestFocus();
Component focusedComponent = Component.getFocusedComponent();
if (focusedComponent != null) {
focusedComponent.transferFocus(Direction.BACKWARD);
}
consumed = true;
} else if (keyCode == Keyboard.KeyCode.DOWN) {
menuPopup.requestFocus();
consumed = true;
} else if (keyCode == Keyboard.KeyCode.LEFT) {
menuBarItem.transferFocus(Direction.BACKWARD);
consumed = true;
} else if (keyCode == Keyboard.KeyCode.RIGHT) {
menuBarItem.transferFocus(Direction.FORWARD);
consumed = true;
} else if (keyCode == Keyboard.KeyCode.ENTER) {
menuBarItem.press();
consumed = true;
} else if (keyCode == Keyboard.KeyCode.ESCAPE) {
Component.clearFocus();
consumed = true;
} else {
consumed = super.keyPressed(component, keyCode, keyLocation);
}
return consumed;
}
@Override
public boolean keyReleased(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
boolean consumed = false;
MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
if (keyCode == Keyboard.KeyCode.SPACE) {
menuBarItem.press();
consumed = true;
} else {
consumed = super.keyReleased(component, keyCode, keyLocation);
}
return consumed;
}
@Override
public void enabledChanged(Component component) {
super.enabledChanged(component);
menuPopup.close();
}
@Override
public void focusedChanged(Component component, boolean temporary) {
super.focusedChanged(component, temporary);
final MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
if (component.isFocused()) {
if (!menuPopup.isOpen()) {
Display display = menuBarItem.getDisplay();
Point menuBarItemLocation = menuBarItem.mapPointToAncestor(display, 0, getHeight());
// TODO Ensure that the popup remains within the bounds of the display
menuPopup.setLocation(menuBarItemLocation.x, menuBarItemLocation.y);
menuPopup.open(menuBarItem);
// Listen for key events from the popup
menuPopup.getComponentKeyListeners().add(new ComponentKeyListener() {
public boolean keyTyped(Component component, char character) {
return false;
}
public boolean keyPressed(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
if (keyCode == Keyboard.KeyCode.LEFT
|| (keyCode == Keyboard.KeyCode.TAB
&& Keyboard.isPressed(Keyboard.Modifier.SHIFT))) {
menuBarItem.transferFocus(Direction.BACKWARD);
} else if (keyCode == Keyboard.KeyCode.RIGHT
|| keyCode == Keyboard.KeyCode.TAB) {
menuBarItem.transferFocus(Direction.FORWARD);
} else if (keyCode == Keyboard.KeyCode.ESCAPE) {
Component.clearFocus();
}
return false;
}
public boolean keyReleased(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
return false;
}
});
}
} else {
if (!temporary
&& !menuPopup.containsFocus()) {
menuPopup.close();
}
}
}
public void buttonPressed(Button button) {
MenuBar.Item menuBarItem = (MenuBar.Item)getComponent();
MenuBar menuBar = menuBarItem.getMenuBar();
if (menuPopup.isOpen()) {
if (menuBar.isActive()) {
Component.clearFocus();
} else {
menuBar.setActive(true);
}
}
}
public void menuChanged(MenuBar.Item menuBarItem, Menu previousMenu) {
menuPopup.setMenu(menuBarItem.getMenu());
repaintComponent();
}
}