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/*
@ITMillApache2LicenseForJavaFiles@
*/
package com.itmill.toolkit.demo;
import java.util.Date;
import com.itmill.toolkit.Application;
import com.itmill.toolkit.event.Action;
import com.itmill.toolkit.event.ShortcutAction;
import com.itmill.toolkit.event.Action.Handler;
import com.itmill.toolkit.ui.Button;
import com.itmill.toolkit.ui.HorizontalLayout;
import com.itmill.toolkit.ui.Label;
import com.itmill.toolkit.ui.Panel;
import com.itmill.toolkit.ui.TextField;
import com.itmill.toolkit.ui.VerticalLayout;
import com.itmill.toolkit.ui.Window;
/**
* Test application for KeyboardShortcuts
*/
public class KeyboardShortcut extends Application implements Handler {
private VerticalLayout loki;
private final Label instructions = new Label(
"<p>Keyboard shortcuts is a must have feature for applications in a "
+ "daily use. In IT Mill toolkit shortcuts are binded to "
+ "Panel and its subclasses like Windows (most common place)."
+ "</p>"
+ "<p>Browsers reserve some keyboard combinations for their own"
+ " actions, so all combinations cannot be used in web "
+ "applications. (see our article on <a href=\"http://www.itmill"
+ ".com/articles/Keybindings_in_Web_Browsers.htm\">"
+ "www.itmill.com)</a></p>"
+ "<p>Focus must be inside web application (eg. not in address "
+ "bar) for shortcuts to work. By default app element is focused.</p>"
+ "<strong>Shortcuts used in this example:</strong> "
+ "<br/>ESC restarts program, ctrl-shift-a (Button A), "
+ "ctrl-shift-z (Button Z), ctrl-shift-x (Button X)",
Label.CONTENT_XHTML);
private final Action ACTION_A = new ShortcutAction("Button a action",
ShortcutAction.KeyCode.A, new int[] {
ShortcutAction.ModifierKey.CTRL,
ShortcutAction.ModifierKey.SHIFT });
private final Action ACTION_Z = new ShortcutAction("Button z action",
ShortcutAction.KeyCode.Z, new int[] {
ShortcutAction.ModifierKey.CTRL,
ShortcutAction.ModifierKey.SHIFT });
private final Action ACTION_X = new ShortcutAction("Button x action",
ShortcutAction.KeyCode.X, new int[] {
ShortcutAction.ModifierKey.CTRL,
ShortcutAction.ModifierKey.SHIFT });
private final Action ACTION_RESTART = new ShortcutAction("Restart ",
ShortcutAction.KeyCode.ESCAPE, null);
private final Action[] actions = new Action[] { ACTION_A, ACTION_Z,
ACTION_X, ACTION_RESTART };
private TextField f;
@Override
public void init() {
final Window w = new Window("Keyboard shortcuts demo");
final VerticalLayout main = new VerticalLayout();
main.setMargin(true);
main.setSpacing(true);
setMainWindow(w);
w.setLayout(main);
final Panel p = new Panel("Test application for shortcut actions");
p.addComponent(instructions);
final HorizontalLayout buttons = new HorizontalLayout();
// Restart button
final Button close = new Button("restart", this, "close");
final Button a = new Button("Button A", this, "actionAHandler");
final Button z = new Button("Button Z", this, "actionZHandler");
final Button x = new Button("Button X", this, "actionXHandler");
f = new TextField();
buttons.addComponent(close);
buttons.addComponent(a);
buttons.addComponent(z);
buttons.addComponent(x);
buttons.addComponent(f);
p.addComponent(buttons);
main.addComponent(p);
loki = new VerticalLayout();
main.addComponent(loki);
main.setExpandRatio(loki, 1.0f);
w.addActionHandler(this);
}
public Action[] getActions(Object target, Object sender) {
return actions;
}
public void handleAction(Action action, Object sender, Object target) {
if (action == ACTION_A) {
actionAHandler();
}
if (action == ACTION_Z) {
actionZHandler();
}
if (action == ACTION_X) {
actionXHandler();
}
if (action == ACTION_RESTART) {
actionRestartHandler();
}
}
public void actionAHandler() {
log("Button A handler fired");
}
public void actionZHandler() {
log("Button Z handler fired");
}
public void actionXHandler() {
log("Button X handler fired");
}
public void actionRestartHandler() {
close();
}
public void log(String s) {
loki.addComponentAsFirst(new Label(new Date() + " : " + s));
}
}
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