/*
* 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 org.apache.pivot.wtk.skin.terra;
import java.awt.Color;
import java.awt.Font;
import org.apache.pivot.collections.Dictionary;
import org.apache.pivot.collections.List;
import org.apache.pivot.collections.Sequence;
import org.apache.pivot.util.Vote;
import org.apache.pivot.wtk.Border;
import org.apache.pivot.wtk.Component;
import org.apache.pivot.wtk.ComponentKeyListener;
import org.apache.pivot.wtk.ComponentStateListener;
import org.apache.pivot.wtk.Container;
import org.apache.pivot.wtk.ContainerMouseListener;
import org.apache.pivot.wtk.FocusTraversalDirection;
import org.apache.pivot.wtk.Display;
import org.apache.pivot.wtk.GraphicsUtilities;
import org.apache.pivot.wtk.Keyboard;
import org.apache.pivot.wtk.ListView;
import org.apache.pivot.wtk.ListViewSelectionListener;
import org.apache.pivot.wtk.Mouse;
import org.apache.pivot.wtk.Point;
import org.apache.pivot.wtk.Span;
import org.apache.pivot.wtk.SuggestionPopup;
import org.apache.pivot.wtk.SuggestionPopupListener;
import org.apache.pivot.wtk.SuggestionPopupStateListener;
import org.apache.pivot.wtk.TextInput;
import org.apache.pivot.wtk.Theme;
import org.apache.pivot.wtk.Window;
import org.apache.pivot.wtk.effects.DropShadowDecorator;
import org.apache.pivot.wtk.effects.Transition;
import org.apache.pivot.wtk.effects.TransitionListener;
import org.apache.pivot.wtk.skin.WindowSkin;
/**
* Terra suggestion popup skin.
*/
public class TerraSuggestionPopupSkin extends WindowSkin
implements SuggestionPopupListener, SuggestionPopupStateListener {
private Border suggestionListViewBorder = new Border();
private ListView suggestionListView = new ListView();
private DropShadowDecorator dropShadowDecorator = null;
private Transition closeTransition = null;
private ContainerMouseListener displayMouseListener = new ContainerMouseListener.Adapter() {
@Override
public boolean mouseDown(Container container, Mouse.Button button, int x, int y) {
SuggestionPopup suggestionPopup = (SuggestionPopup)getComponent();
TextInput textInput = suggestionPopup.getTextInput();
Display display = (Display)container;
Component descendant = display.getDescendantAt(x, y);
if (!suggestionPopup.isAncestor(descendant)
&& descendant != textInput) {
suggestionPopup.close(false);
}
return false;
}
@Override
public boolean mouseWheel(Container container, Mouse.ScrollType scrollType,
int scrollAmount, int wheelRotation, int x, int y) {
return true;
}
};
private ComponentStateListener textInputStateListener = new ComponentStateListener.Adapter() {
@Override
public void focusedChanged(Component component, Component obverseComponent) {
SuggestionPopup suggestionPopup = (SuggestionPopup)getComponent();
if (!component.isFocused()
&& !suggestionPopup.containsFocus()) {
suggestionPopup.close();
}
}
};
private ComponentKeyListener textInputKeyListener = new ComponentKeyListener.Adapter() {
@Override
public boolean keyPressed(Component component, int keyCode,
Keyboard.KeyLocation keyLocation) {
boolean consumed = false;
SuggestionPopup suggestionPopup = (SuggestionPopup)getComponent();
if (keyCode == Keyboard.KeyCode.DOWN) {
if (suggestionListView.getSelectedIndex() == -1
&& suggestionListView.getListData().getLength() > 0) {
suggestionListView.setSelectedIndex(0);
}
suggestionPopup.requestFocus();
consumed = true;
} else if (keyCode == Keyboard.KeyCode.ESCAPE) {
suggestionPopup.close(false);
consumed = true;
}
return consumed;
}
};
private ListViewSelectionListener listViewSelectionListener = new ListViewSelectionListener.Adapter() {
@Override
public void selectedRangesChanged(ListView listView, Sequence<Span> previousSelectedRanges) {
int index = suggestionListView.getSelectedIndex();
SuggestionPopup suggestionPopup = (SuggestionPopup)getComponent();
suggestionPopup.setSelectedIndex(index);
}
};
private static final int CLOSE_TRANSITION_DURATION = 150;
private static final int CLOSE_TRANSITION_RATE = 30;
public TerraSuggestionPopupSkin () {
suggestionListView.getStyles().put("variableItemHeight", true);
suggestionListView.getListViewSelectionListeners().add(listViewSelectionListener);
suggestionListViewBorder.setContent(suggestionListView);
}
@Override
public void install(Component component) {
super.install(component);
SuggestionPopup suggestionPopup = (SuggestionPopup)component;
suggestionPopup.getSuggestionPopupListeners().add(this);
suggestionPopup.getSuggestionPopupStateListeners().add(this);
suggestionPopup.setContent(suggestionListViewBorder);
suggestionListView.setListData(suggestionPopup.getSuggestions());
suggestionListView.setItemRenderer(suggestionPopup.getSuggestionRenderer());
// Attach the drop-shadow decorator
dropShadowDecorator = new DropShadowDecorator(3, 3, 3);
suggestionPopup.getDecorators().add(dropShadowDecorator);
}
public Font getFont() {
return (Font)suggestionListView.getStyles().get("font");
}
public void setFont(Font font) {
suggestionListView.getStyles().put("font", font);
}
public final void setFont(String font) {
if (font == null) {
throw new IllegalArgumentException("font is null.");
}
setFont(decodeFont(font));
}
public final void setFont(Dictionary<String, ?> font) {
if (font == null) {
throw new IllegalArgumentException("font is null.");
}
setFont(Theme.deriveFont(font));
}
public Color getColor() {
return (Color)suggestionListView.getStyles().get("color");
}
public void setColor(Color color) {
suggestionListView.getStyles().put("color", color);
}
public final void setColor(String color) {
if (color == null) {
throw new IllegalArgumentException("color is null.");
}
setColor(GraphicsUtilities.decodeColor(color));
}
public Color getBorderColor() {
return (Color)suggestionListViewBorder.getStyles().get("color");
}
public void setBorderColor(Color borderColor) {
suggestionListViewBorder.getStyles().put("color", borderColor);
}
public final void setBorderColor(String borderColor) {
if (borderColor == null) {
throw new IllegalArgumentException("borderColor is null.");
}
setBorderColor(GraphicsUtilities.decodeColor(borderColor));
}
@Override
public boolean mouseClick(Component component, Mouse.Button button, int x, int y, int count) {
SuggestionPopup suggestionPopup = (SuggestionPopup)getComponent();
suggestionPopup.close(true);
return true;
}
@Override
public boolean keyPressed(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
SuggestionPopup suggestionPopup = (SuggestionPopup)getComponent();
TextInput textInput = suggestionPopup.getTextInput();
switch (keyCode) {
case Keyboard.KeyCode.ENTER: {
suggestionPopup.close(true);
break;
}
case Keyboard.KeyCode.TAB: {
suggestionPopup.close(true);
FocusTraversalDirection direction = (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) ?
FocusTraversalDirection.BACKWARD : FocusTraversalDirection.FORWARD;
textInput.transferFocus(direction);
break;
}
case Keyboard.KeyCode.ESCAPE: {
suggestionPopup.close(false);
break;
}
}
return false;
}
@Override
public void windowOpened(Window window) {
super.windowOpened(window);
Display display = window.getDisplay();
display.getContainerMouseListeners().add(displayMouseListener);
dropShadowDecorator.setShadowOpacity(DropShadowDecorator.DEFAULT_SHADOW_OPACITY);
SuggestionPopup suggestionPopup = (SuggestionPopup)getComponent();
TextInput textInput = suggestionPopup.getTextInput();
textInput.getComponentStateListeners().add(textInputStateListener);
textInput.getComponentKeyListeners().add(textInputKeyListener);
// Reposition under text input
Point location = textInput.mapPointToAncestor(textInput.getDisplay(), 0, 0);
suggestionPopup.setLocation(location.x, location.y + textInput.getHeight() - 1);
suggestionPopup.setMinimumPreferredWidth(textInput.getWidth());
}
@Override
public void windowCloseVetoed(Window window, Vote reason) {
if (reason == Vote.DENY
&& closeTransition != null) {
closeTransition.stop();
suggestionListViewBorder.setEnabled(true);
closeTransition = null;
}
}
@Override
public void windowClosed(Window window, Display display, Window owner) {
display.getContainerMouseListeners().remove(displayMouseListener);
super.windowClosed(window, display, owner);
}
@Override
public void suggestionsChanged(SuggestionPopup suggestionPopup,
List<?> previousSuggestions) {
suggestionListView.setListData(suggestionPopup.getSuggestions());
}
@Override
public void suggestionRendererChanged(SuggestionPopup suggestionPopup,
ListView.ItemRenderer previousSuggestionRenderer) {
suggestionListView.setItemRenderer(suggestionPopup.getSuggestionRenderer());
}
@Override
public void selectedIndexChanged(SuggestionPopup suggestionPopup,
int previousSelectedIndex) {
TextInput textInput = suggestionPopup.getTextInput();
Object suggestion = suggestionPopup.getSelectedSuggestion();
if (suggestion != null) {
ListView.ItemRenderer suggestionRenderer = suggestionPopup.getSuggestionRenderer();
textInput.setText(suggestionRenderer.toString(suggestion));
}
}
@Override
public Vote previewSuggestionPopupClose(final SuggestionPopup suggestionPopup, final boolean result) {
if (closeTransition == null) {
suggestionListViewBorder.setEnabled(false);
closeTransition = new FadeWindowTransition(suggestionPopup,
CLOSE_TRANSITION_DURATION, CLOSE_TRANSITION_RATE,
dropShadowDecorator);
closeTransition.start(new TransitionListener() {
@Override
public void transitionCompleted(Transition transition) {
suggestionPopup.close(result);
}
});
}
return (closeTransition != null
&& closeTransition.isRunning()) ? Vote.DEFER : Vote.APPROVE;
}
@Override
public void suggestionPopupCloseVetoed(SuggestionPopup suggestionPopup, Vote reason) {
if (reason == Vote.DENY
&& closeTransition != null) {
closeTransition.stop();
suggestionListViewBorder.setEnabled(true);
closeTransition = null;
}
}
@Override
public void suggestionPopupClosed(SuggestionPopup suggestionPopup) {
suggestionPopup.clearFocusDescendant();
TextInput textInput = suggestionPopup.getTextInput();
textInput.getComponentStateListeners().remove(textInputStateListener);
textInput.getComponentKeyListeners().remove(textInputKeyListener);
textInput.requestFocus();
suggestionListViewBorder.setEnabled(true);
closeTransition = null;
}
}