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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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# This file is part of Beremiz, a Integrated Development Environment for

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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

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#

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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

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#

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# See COPYING file for copyrights details.

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#

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# This program is free software; you can redistribute it and/or

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# modify it under the terms of the GNU General Public License

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# as published by the Free Software Foundation; either version 2

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# of the License, or (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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#

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

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# along with this program; if not, write to the Free Software

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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from __future__ import absolute_import

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import subprocess

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import wx

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import wx.html

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HtmlFrameOpened = []

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def OpenHtmlFrame(self, title, file, size):

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    if title not in HtmlFrameOpened:

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        HtmlFrameOpened.append(title)

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        window = HtmlFrame(self, HtmlFrameOpened)

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        window.SetTitle(title)

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        window.SetHtmlPage(file)

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        window.SetClientSize(size)

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        window.Show()

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EVT_HTML_URL_CLICK = wx.NewId()

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class HtmlWindowUrlClick(wx.PyEvent):

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    def __init__(self, linkinfo):

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        wx.PyEvent.__init__(self)

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        self.SetEventType(EVT_HTML_URL_CLICK)

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        self.linkinfo = (linkinfo.GetHref(), linkinfo.GetTarget())

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class UrlClickHtmlWindow(wx.html.HtmlWindow):

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    """ HTML window that generates and OnLinkClicked event.

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    Use this to avoid having to override HTMLWindow

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    """

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    def OnLinkClicked(self, linkinfo):

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        wx.PostEvent(self, HtmlWindowUrlClick(linkinfo))

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    def Bind(self, event, handler, source=None, id=wx.ID_ANY, id2=wx.ID_ANY):

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        if event == HtmlWindowUrlClick:

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            self.Connect(-1, -1, EVT_HTML_URL_CLICK, handler)

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        else:

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            wx.html.HtmlWindow.Bind(self, event, handler, source=source, id=id, id2=id2)

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class HtmlFrame(wx.Frame):

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    def _init_ctrls(self, prnt):

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        self.SetIcon(prnt.icon)

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        self.Bind(wx.EVT_CLOSE, self.OnCloseFrame)

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        self.HtmlContent = UrlClickHtmlWindow(name='HtmlContent', parent=self, pos=wx.Point(0, 0),

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                                              size=wx.Size(-1, -1), style=wx.html.HW_SCROLLBAR_AUTO | wx.html.HW_NO_SELECTION)

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        self.HtmlContent.Bind(HtmlWindowUrlClick, self.OnLinkClick)

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    def __init__(self, parent, opened):

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        wx.Frame.__init__(self, name='HtmlFrame',

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                          parent=parent, pos=wx.Point(320, 231),

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                          size=wx.Size(853, 616),

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                          style=wx.DEFAULT_FRAME_STYLE, title='')

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        self._init_ctrls(parent)

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        self.HtmlFrameOpened = opened

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    def SetHtmlCode(self, htmlcode):

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        self.HtmlContent.SetPage(htmlcode)

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    def SetHtmlPage(self, htmlpage):

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        self.HtmlContent.LoadPage(htmlpage)

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    def OnCloseFrame(self, event):

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        self.HtmlFrameOpened.remove(self.GetTitle())

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        event.Skip()

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    def OnLinkClick(self, event):

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        url = event.linkinfo[0]

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        try:

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            if wx.Platform == '__WXMSW__':

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                import webbrowser

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                webbrowser.open(url)

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            elif subprocess.call("firefox %s" % url, shell=True) != 0:

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                wx.MessageBox("""Firefox browser not found.\nPlease point your browser at :\n%s""" % url)

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        except ImportError:

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            wx.MessageBox('Please point your browser at: %s' % url)