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

"""
Module implementing MainWindow.
"""
from PyQt4 import QtCore, QtGui
from PyQt4.QtGui import QMainWindow
from PyQt4.QtCore import pyqtSignature

from Ui_fenettre import Ui_MainWindow

import re

class MainWindow(QMainWindow, Ui_MainWindow):
    """
    Class documentation goes here.
    """
    def __init__(self, parent = None):
        """
        Constructor
        """
        QMainWindow.__init__(self, parent)
        self.setupUi(self)
    
    @pyqtSignature("")
        
    def on_pushButton_clicked(self):
        """
        charger l'URL indiqué dans lineedit.
        """
        
        url = unicode(self.lineEdit.text())
        if not url.startswith("http://"): url="http://"+url
        self.webView.setUrl(QtCore.QUrl(url))
        self.statusbar.setText("loading "+url)
        
        
    def on_webView_loadStarted(self):
        """
        Slot documentation goes here.
        """
        self.textEdit.setText("")
        
    def on_webView_loadFinished (self):
        """
        quand le chargement est terminé.
        """
        self.statusbar.setText(unicode(self.webView.url().toString())+" loaded")
        self.setWindowTitle(self.webView.title())
        html=unicode(self.webView.page().mainFrame().toHtml())
        text=self.nettoie(html)
        self.textEdit.setText(text)
     
        #langue = self.devineLangue(text)
        #self.laLangueConclusion.setText("La langue de la page est le "+langue)
        
    def on_lineEdit_returnPressed(self):
        """
        charger l'URL indiqué dans lineedit.
        """
        self.on_pushButton_clicked()
        
    def nettoie(self, codehtml):
        codehtml=codehtml.replace("\n", " ")
        expr = re.compile("\<script.*?\<\/script\>")
        codehtml = expr.sub(" ", codehtml)
        expr = re.compile("<style.*?</style>")
        codehtml = expr.sub(" ", codehtml)
        expr = re.compile("<.*?>")
        text = expr.sub("", codehtml)
        text=text.replace("&nbsp;", " ")
        text=re.sub(" +", " ", text)
        return text

if __name__ == "__main__": 
        import sys 
        app = QtGui.QApplication(sys.argv) 
        wnd = MainWindow() 
        wnd.show() 
        sys.exit(app.exec_())