from Tkinter import *
import re
import string

class Browser:
    
    def __init__(self, fetcher=None):
        print "initializing Browser..."
        self.fetcher = fetcher
        self.root = Tk()
        
        self.text_frame=Frame(self.root)
        self.text_frame.pack(fill=BOTH, expand=1)
        self.text=Text(self.text_frame)
        self.text.pack(fill=BOTH, side=LEFT, expand=1)
        self.textscrolly = Scrollbar(self.text_frame, orient=VERTICAL)
        self.textscrolly.pack(fill=Y, side=LEFT)
        self.text.config(yscrollcommand=self.textscrolly.set)
        self.textscrolly.config(command=self.text.yview)
        
        self.location=Entry(self.root)
        self.location.pack(fill=X)
        self.location.bind('<Return>', lambda e: self._get_location())
        
        self.status = Label(self.root)
        self.status.pack(fill=X)
        
    def display(self,s,url=None, status=None):
        self.text.delete(1.0,END)
        self.text.insert(END,s)
        self.location.delete(0,END)
        self.status.configure(text='')
        if url:
            self.location.insert(END,url)
        if status:
            self.status.configure(text=status)
            

    def _get_location(self):
        url = self.location.get()
        print "url: ", url
        if self.fetcher:
            s1 = re.split('//', url)[1]
            print "s1: ", s1
            l = re.split('/', s1)
            document = '/' + string.join(l[1:], '/')
            l2 = re.split(':', l[0] )
            print l2
            if len(l2) > 1:
                host = l2[0]
                port = l2[1]
                print "host: ", host, " port: ", port, " document: ", document
            else:
                host = l[0]
                port = None
                print "host: ", host, " document: ", document
            result, status = self.fetcher(host, document, port)
            self.display(result, url, status)