/*

 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.apple.laf;

import java.awt.*;

import javax.swing.*;

import sun.lwawt.macosx.CPlatformWindow;

class ScreenPopupFactory extends PopupFactory {

    static final Float TRANSLUCENT = new Float(248f/255f);

    static final Float OPAQUE = new Float(1.0f);

    boolean fIsActive = true;

    // Only popups generated with the Aqua LaF turned on will be translucent with shadows

    void setActive(final boolean b) {

        fIsActive = b;

    }

    private static Window getWindow(final Component c) {

        Component w = c;

        while(!(w instanceof Window) && (w!=null)) {

            w = w.getParent();

        }

        return (Window)w;

    }

    public Popup getPopup(final Component comp, final Component invoker, final int x, final int y) {

        if (invoker == null) throw new IllegalArgumentException("Popup.getPopup must be passed non-null contents");

        final Popup popup;

        if (fIsActive) {

        } else {

            popup = super.getPopup(comp, invoker, x, y);

        }

        // Make the popup semi-translucent if it is a heavy weight

        // see <rdar://problem/3547670> JPopupMenus have incorrect background

        final Window w = getWindow(invoker);

        if (w == null) return popup;

        if (!(w instanceof RootPaneContainer)) return popup;

        final JRootPane popupRootPane = ((RootPaneContainer)w).getRootPane();

        // we need to set every time, because PopupFactory caches the heavy weight

        // TODO: CPlatformWindow constants?

        if (fIsActive) {

            popupRootPane.putClientProperty(CPlatformWindow.WINDOW_ALPHA, TRANSLUCENT);

            popupRootPane.putClientProperty(CPlatformWindow.WINDOW_SHADOW, Boolean.TRUE);

            popupRootPane.putClientProperty(CPlatformWindow.WINDOW_FADE_DELEGATE, invoker);

            w.setBackground(UIManager.getColor("PopupMenu.translucentBackground"));

            popupRootPane.putClientProperty(CPlatformWindow.WINDOW_DRAGGABLE_BACKGROUND, Boolean.FALSE);

            SwingUtilities.invokeLater(new Runnable() {

                public void run() {

                    popupRootPane.putClientProperty(CPlatformWindow.WINDOW_SHADOW_REVALIDATE_NOW, Double.valueOf(Math.random()));

                }

            });

        } else {

            popupRootPane.putClientProperty(CPlatformWindow.WINDOW_ALPHA, OPAQUE);

            popupRootPane.putClientProperty(CPlatformWindow.WINDOW_SHADOW, Boolean.FALSE);

        }

        return popup;

    }

}