#!/usr/bin/env python

#############################################################################
##
## Copyright (C) 2010 Hans-Peter Jansen <hpj@urpla.net>.
## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
## All rights reserved.
##
## This file is part of the examples of PyQt.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
##   * Redistributions of source code must retain the above copyright
##     notice, this list of conditions and the following disclaimer.
##   * Redistributions in binary form must reproduce the above copyright
##     notice, this list of conditions and the following disclaimer in
##     the documentation and/or other materials provided with the
##     distribution.
##   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
##     the names of its contributors may be used to endorse or promote
##     products derived from this software without specific prior written
##     permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
## $QT_END_LICENSE$
##
###########################################################################

import sys

# This is only needed for Python v2 but is harmless for Python v3.
import sip
sip.setapi('QString', 2)    # converts QStrings to unicode objects internally
sip.setapi('QVariant', 2)   # converts QVariants to the basic data types internally

from PyQt4 import QtCore, QtGui

import formextractor_rc

from ui_formextractor import Ui_FormExtractor

class FormExtractor(QtGui.QWidget):
    def __init__(self, parent = None, flags = 0):
        super(FormExtractor, self).__init__(parent, QtCore.Qt.WindowFlags(flags))
        self.ui = Ui_FormExtractor()
        self.ui.setupUi(self)
        self.ui.webView.setUrl(QtCore.QUrl("qrc:/form.html"))
        self.ui.webView.page().mainFrame().javaScriptWindowObjectCleared.connect(
                self.populateJavaScriptWindowObject)
        self.resize(300, 300)
 
    def submit(self):
        print "FormExtractor.submit"
        frame = self.ui.webView.page().mainFrame()
        firstName = frame.findFirstElement("#firstname")
        lastName = frame.findFirstElement("#lastname")
        maleGender = frame.findFirstElement("#genderMale")
        femaleGender = frame.findFirstElement("#genderFemale")
        updates = frame.findFirstElement("#updates")
        self.ui.firstNameEdit.setText(firstName.evaluateJavaScript("this.value"))
        self.ui.lastNameEdit.setText(lastName.evaluateJavaScript("this.value"))
        if maleGender.evaluateJavaScript("this.checked"):
            self.ui.genderEdit.setText(maleGender.evaluateJavaScript("this.value"))
        elif femaleGender.evaluateJavaScript("this.checked"):
            self.ui.genderEdit.setText(femaleGender.evaluateJavaScript("this.value"))
        if updates.evaluateJavaScript("this.checked"):
            self.ui.updatesEdit.setText("Yes")
        else:
            self.ui.updatesEdit.setText("No")

    def populateJavaScriptWindowObject(self):
        self.ui.webView.page().mainFrame().addToJavaScriptWindowObject("formExtractor", self)


class MainWindow(QtGui.QMainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.createActions()
        self.createMenus()
        self.centralWidget = FormExtractor(self)
        self.setCentralWidget(self.centralWidget)
        self.setUnifiedTitleAndToolBarOnMac(True)
    
    def createActions(self):
        self.exitAct = QtGui.QAction(self.tr("E&xit"), self)
        self.exitAct.setStatusTip(self.tr("Exit the application"))
        self.exitAct.setShortcuts(QtGui.QKeySequence.Quit)
        self.exitAct.triggered.connect(self.close)
        self.aboutAct = QtGui.QAction(self.tr("&About"), self)
        self.aboutAct.setStatusTip(self.tr("Show the application's About box"))
        self.aboutAct.triggered.connect(self.about)
        self.aboutQtAct = QtGui.QAction(self.tr("About &Qt"), self)
        self.aboutQtAct.setStatusTip(self.tr("Show the Qt library's About box"))
        self.aboutQtAct.triggered.connect(QtGui.qApp.aboutQt)

    def createMenus(self):
        fileMenu = self.menuBar().addMenu(self.tr("&File"))
        fileMenu.addAction(self.exitAct)
        self.menuBar().addSeparator()
        helpMenu = self.menuBar().addMenu(self.tr("&Help"))
        helpMenu.addAction(self.aboutAct)
        helpMenu.addAction(self.aboutQtAct)

    def about(self):
        QtGui.QMessageBox.about(self, self.tr("About Form Extractor"),
            self.tr("The <b>Form Extractor</b> example demonstrates how to "
               "extract data from a web form using QtWebKit."))


if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    mainWindow = MainWindow()
    mainWindow.setWindowTitle("Form Extractor")
    mainWindow.show()
    sys.exit(app.exec_())