#----------------------------------------------------------------------
# Name:        wx.tools.helpviewer
# Purpose:     HTML Help viewer
#
# Author:      Robin Dunn
#
# Created:     11-Dec-2002
# Copyright:   (c) 2002-2020 by Total Control Software
# Licence:     wxWindows license
# Tags:        phoenix-port, py3-port
#----------------------------------------------------------------------

"""
helpviewer.py   --  Displays HTML Help in a wxHtmlHelpController window.

Usage:
    helpviewer [--cache=path] helpfile [helpfile(s)...]

    Where helpfile is the path to either a .hhp file or a .zip file
    which contains a .hhp file.  The .hhp files are the same as those
    used by Microsoft's HTML Help Workshop for creating CHM files.
"""


import sys, os

#---------------------------------------------------------------------------

def makeOtherFrame(helpctrl):
    import wx
    parent = helpctrl.GetFrame()
    otherFrame = wx.Frame(parent)


def main(args=sys.argv):
    if len(args) < 2:
        print(__doc__)
        return

    args = args[1:]
    cachedir = None
    if args[0][:7] == '--cache':
        cachedir = os.path.expanduser(args[0].split('=')[1])
        args = args[1:]

    if len(args) == 0:
        print(__doc__)
        return

    import wx
    import wx.html

    app = wx.App()
    #wx.Log.SetActiveTarget(wx.LogStderr())
    wx.Log.SetLogLevel(wx.LOG_Error)

    # Set up the default config so the htmlhelp frame can save its preferences
    app.SetVendorName('wxWindows')
    app.SetAppName('helpviewer')
    cfg = wx.ConfigBase.Get()

    # Add the Zip filesystem
    wx.FileSystem.AddHandler(wx.ArchiveFSHandler())

    # Create the viewer
    helpctrl = wx.html.HtmlHelpController()
    if cachedir:
        helpctrl.SetTempDir(cachedir)

    # and add the books
    for helpfile in args:
        print("Adding %s..." % helpfile)
        helpctrl.AddBook(helpfile, 1)

    # The frame used by the HtmlHelpController is set to not prevent
    # app exit, so in the case of a standalone helpviewer like this
    # when the Print dialog is closed the help frame will be the only
    # one left and the app will close unexpectedly. [Strangely, this
    # doesn't happen when the Options dialog is closed].
    # To work around this we'll create another frame that is never shown,
    # but which will be closed when the helpviewer frame is closed.
    wx.CallAfter(makeOtherFrame, helpctrl)

    # start it up!
    helpctrl.DisplayContents()
    app.MainLoop()


if __name__ == '__main__':
    main()


