#
# 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 .
#
import traceback
from ..common.Properties import Properties

from com.sun.star.awt import WindowDescriptor
from com.sun.star.awt import Rectangle
from com.sun.star.awt.WindowClass import SIMPLE
from com.sun.star.awt.VclWindowPeerAttribute import CLIPCHILDREN
from com.sun.star.awt.WindowAttribute import SHOW

'''
To change the template for this generated type comment go to
Window>Preferences>Java>Code Generation>Code and Comments
'''

class DocumentPreview(object):
    PREVIEW_MODE = 1

    '''
    create new frame with window inside
    load a component as preview into this frame
    '''

    def __init__(self, xmsf, control):
        self.xControl = control
        self.createPreviewFrame(xmsf, self.xControl)

    def setDocument(self, url_, propNames, propValues=None):
        if propValues is None:
            if propNames == DocumentPreview.PREVIEW_MODE:
                self.setDocument(url_, ("Preview", "ReadOnly"), (True, True))
            else:
                self.loadArgs = propNames
                self.xFrame.activate()
                self.xComponent = self.xFrame.loadComponentFromURL(url_, "_self", 0, tuple(self.loadArgs))
                return self.xComponent
        else:
            self.url = url_
            ps = Properties()
            for index,item in enumerate(propNames):
                ps[item] = propValues[index]
            return self.setDocument(self.url, ps.getProperties1())

    def closeFrame(self):
        if self.xFrame is not None:
            self.xFrame.close(False)

    '''
    create a new frame with a new container window inside,
    which is not part of the global frame tree.

    Attention:
    a) This frame won't be destroyed by the office. It must be closed by you!
       Do so - please call XCloseable::close().
    b) The container window is part of the frame. Don't hold it alive - nor try to kill it.
       It will be destroyed inside close().
    '''

    def createPreviewFrame(self, xmsf, xControl):
        controlPeer = xControl.Peer
        r = xControl.PosSize
        toolkit = xmsf.createInstance("com.sun.star.awt.Toolkit")
        aDescriptor = WindowDescriptor()
        aDescriptor.Type = SIMPLE
        aDescriptor.WindowServiceName = "window"
        aDescriptor.ParentIndex = -1
        aDescriptor.Parent = controlPeer
        #xWindowPeer; #argument !
        aDescriptor.Bounds = Rectangle(0, 0, r.Width, r.Height)
        aDescriptor.WindowAttributes = CLIPCHILDREN | SHOW
        self.xWindow = toolkit.createWindow(aDescriptor)
        self.xFrame = xmsf.createInstance("com.sun.star.frame.Frame")
        self.xFrame.initialize(self.xWindow)
        self.xWindow.setVisible(True)

    def dispose(self):
        try:
            self.closeFrame()
        except Exception:
            traceback.print_exc()