/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */
package complex.persistent_window_states;


import com.sun.star.awt.Rectangle;
import com.sun.star.awt.PosSize;
import com.sun.star.frame.XComponentLoader;
import com.sun.star.lang.XComponent;
import com.sun.star.awt.XWindow;
import com.sun.star.beans.PropertyValue;
import com.sun.star.beans.PropertyState;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.frame.XFrame;
import com.sun.star.frame.FrameSearchFlag;
import helper.WindowListener;

/**
 * Load and resize a document.
 *
 */
public class DocumentHandle {
    // the component loader to load a document
    XComponentLoader xCompLoader = null;
    // the document
    XComponent xComp = null;
    // the current window
    XWindow xWin = null;
    // a own window listener
    WindowListener wl = null;

    /**
     * Constructor
     * @param xCompLoader  A loader to load a document
     */
    public DocumentHandle(XComponentLoader xCompLoader) {
        this.xCompLoader = xCompLoader;
        wl = new WindowListener();
    }

    /**
     * Load/Create a document.
     * @param docName The name of a document as file URL
     * @param hidden If true, the document is loaded hidden.
     * @return The size of the opened/created document.
     * @throws Exception
     */
    public Rectangle loadDocument(String docName, boolean hidden)
                                                            throws Exception{
        wl.resetTrigger();
        try {
            PropertyValue [] szArgs = null;
            if (hidden) {
                szArgs = new PropertyValue [1];
                PropertyValue Arg = new PropertyValue();
                Arg.Name = "Hidden";
                Arg.Value = hidden?"True":"False";
                Arg.Handle = -1;
                Arg.State = PropertyState.DEFAULT_VALUE;
                szArgs[0] = Arg;
            }
            else {
                szArgs = new PropertyValue [0];
            }

            // get the current active window
            XFrame xCurFrame = UnoRuntime.queryInterface(XFrame.class, xCompLoader);

            // create a new frame
            XFrame xFrame = xCurFrame.findFrame("_blank", FrameSearchFlag.CREATE);

            // load document in this frame
            XComponentLoader xFrameLoader = UnoRuntime.queryInterface(XComponentLoader.class, xFrame);
            xComp = xFrameLoader.loadComponentFromURL(
                                                docName, "_self", 0, szArgs);
            // wait for the document to load.
            try {
                Thread.sleep(10000);
            }
            catch(java.lang.InterruptedException e) {}

            xWin = xFrame.getContainerWindow();
            xWin.addWindowListener(wl);
        }
        catch(com.sun.star.io.IOException e) {
            e.printStackTrace();
            return null;
        }
        catch(com.sun.star.lang.IllegalArgumentException e) {
            e.printStackTrace();
            return null;
        }
        catch(java.lang.Exception e) {
            System.out.println("DH3");
            e.printStackTrace();
            throw e;
        }
        return xWin.getPosSize();

    }

    /**
     * Get the size of the current window.
     * @return The size of the window as Rectangle.
     */
    public Rectangle getDocumentPosSize() {
        return xWin.getPosSize();
    }

    /**
     * Resize the window in defined steps:
     * width -10 pixel;
     * height -10 pixel;
     * X-Position +10 pixel;
     * Y-Position +10 pixel
     * @return True if resize worked.
     */
    public boolean resizeDocument() {
        Rectangle newPosSize = xWin.getPosSize();
        newPosSize.Width = newPosSize.Width - 20;
        newPosSize.Height = newPosSize.Height - 20;
        newPosSize.X = newPosSize.X + 80;
        newPosSize.Y = newPosSize.Y + 80;
        return resizeDocument(newPosSize);
    }

    /**
     * Resize window to the given Rectangle
     * @param newPosSize The new position and size of the window.
     * @return True if resize worked.
     */
    public boolean resizeDocument(Rectangle newPosSize){
        wl.resetTrigger();
        xWin.setPosSize(newPosSize.X, newPosSize.Y, newPosSize.Width,
                                    newPosSize.Height, PosSize.POSSIZE);
        try {
            Thread.sleep(3000);
        }
        catch(java.lang.InterruptedException e) {}
        return wl.resizedTrigger;
    }
}