#!/usr/bin/python
from urllib import urlopen

# http://wxpython.org/
from wxPython.wx import *
from wxPython.html import *

import atomef,lazydom
atom=lazydom.namespace('http://purl.org/atom/ns#')

# Yet Another 3 Paned Aggregator
class wx3pa(wxApp):
    # model
    entry=None

    # view
    tree=None
    list=None
    data=None

    def OnInit(self):
        # layout
        frame = wxFrame(NULL, -1, "3 Paned Aggregator Mockup-demo")
        split1 = wxSplitterWindow(frame,-1)
        split2 = wxSplitterWindow(split1,-1)

        # panes
        self.tree=wxTreeCtrl(split1,-1)
        self.list=wxListCtrl(split2,-1,style=wxLC_REPORT|wxSUNKEN_BORDER)
        self.data=wxHtmlWindow(split2,-1)

        # attach the panes to the frame
        split1.SplitVertically(self.tree, split2)
        split2.SplitHorizontally(self.list, self.data)
        self.SetTopWindow(frame)
        frame.Show(true)

        # resize
        split1.SetMinimumPaneSize(20)
        split2.SetMinimumPaneSize(20)
        split1.SetSashPosition(300,true)
        split2.SetSashPosition(200)

        # wire up the events
        EVT_TREE_SEL_CHANGED(self, self.tree.GetId(), self.selectFeed)
        EVT_LIST_ITEM_SELECTED(self, self.list.GetId(), self.selectItem)
        return true

    # load a list of subscriptions
    def load(self,subs):
        root = self.tree.AddRoot("Feeds")

        names = subs.keys()
        names.sort()
        for name in names:
            child=self.tree.AppendItem(root,name.encode('iso-8859-1'))
            self.tree.SetPyData(child,subs[name])

        self.tree.Expand(root)

    # select a single feed and display titles from each item
    def selectFeed(self, event):
        self.list.DeleteAllItems()
        if not self.list.GetColumn(0): self.list.InsertColumn(0, 'Title')

        url = self.tree.GetPyData(event.GetItem())
        self.entry=atomef.parse(urlopen(url)).find(atom.entry)
        for i in range(0,len(self.entry)):
            title=self.entry[i][atom.title]
            if title:
                row=self.list.InsertStringItem(i,title.toString())
                self.list.SetItemData(row,i)

        self.list.SetColumnWidth(0,wxLIST_AUTOSIZE_USEHEADER)

    # show the html description for a single item
    def selectItem(self, event):
        item=self.entry[event.GetItem().GetData()]
        body=item[atom.content] or item[atom.summary]
        self.data.SetPage(body.toHtml())

if __name__ == '__main__':
    app = wx3pa(0)
    app.load({
      'Boing Boing':'http://new.blogger.com/pyra/temporary/atom-prototype?blogID=40471',
      'Ben Trott':'http://btrott.typepad.com/typepad/atom.xml',
      'Mark Pilgrim':'http://diveintomark.org/xml/atom-2003-08-05-snapshot.xml',
      'Simon Fell':'http://www.pocketsoap.com/weblog/necho.xml',
    })
    app.MainLoop()