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from __future__ import absolute_import

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import wx

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from connectors import ConnectorSchemes, EditorClassFromScheme

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class UriEditor(wx.Dialog):

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    def _init_ctrls(self, parent):

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        self.UriTypeChoice.SetSelection(0)

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        self.Bind(wx.EVT_CHOICE, self.OnTypeChoice, self.UriTypeChoice)

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        self.editor_sizer = wx.BoxSizer(wx.HORIZONTAL)

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        self.ButtonSizer = self.CreateButtonSizer(wx.OK | wx.CANCEL)

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    def _init_sizers(self):

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        self.mainSizer = wx.BoxSizer(wx.VERTICAL)

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        typeSizer = wx.BoxSizer(wx.HORIZONTAL)

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        typeSizer.Add(self.UriTypeChoice, border=5, flag=wx.ALL)

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        self.mainSizer.Add(typeSizer)

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        self.mainSizer.Add(self.editor_sizer, border=5, flag=wx.ALL)

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        self.SetSizer(self.mainSizer)

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        self.Layout()

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        self.Fit()

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    def __init__(self, parent, uri):

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                           name='UriEditor', parent=parent,

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                           title=_('URI Editor'))

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        self.URITYPES = [_("- Select URI Scheme -")] + ConnectorSchemes()

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        self._init_ctrls(parent)

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        self._init_sizers()

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        self.scheme = None

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        self.scheme_editor = None

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        self.SetURI(uri)

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        self.CenterOnParent()

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    def OnTypeChoice(self, event):

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        index = event.GetSelection()

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        self._replaceSchemeEditor(event.GetString() if index > 0 else None)

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    def SetURI(self, uri):

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        try:

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            scheme, loc = uri.strip().split("://",1)

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        except:

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            return None

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        scheme = scheme.upper()

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        if scheme in ConnectorSchemes():

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            self.UriTypeChoice.SetStringSelection(scheme)

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            self._replaceSchemeEditor(scheme)

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            self.scheme_editor.SetLoc(loc)

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    def GetURI(self):

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        if self.scheme_editor is None:

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            return None

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        else:

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            return self.scheme+"://"+self.scheme_editor.GetLoc()

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    def _replaceSchemeEditor(self, scheme):

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        self.scheme = scheme

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        if self.scheme_editor is not None:

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            self.editor_sizer.Detach(self.scheme_editor)

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            self.scheme_editor.Destroy()

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            self.scheme_editor = None

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        EditorClass = EditorClassFromScheme(scheme)

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        if EditorClass is not None:

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            self.scheme_editor = EditorClass(scheme,self)

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            self.editor_sizer.Add(self.scheme_editor)

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            self.scheme_editor.Refresh()

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        self.editor_sizer.Layout()

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        self.mainSizer.Layout()

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        self.Fit()

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