Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Comment what these codes do
import sys
# importing QtCore to use Qurl
from PyQt5.QtCore import *
# importing Widgets
from PyQt5.QtWidgets import *
from PyQt5.QtWebEngineWidgets import *
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.browser = QWebEngineView()
self.browser.setUrl(QUrl('http://google.com'))
self.setCentralWidget(self.browser)
self.showMaximized()
navbar = QToolBar()
self.addToolBar(navbar)
back_btn = QAction('Back', self)
back_btn.triggered.connect(self.browser.back)
navbar.addAction(back_btn)
forward_btn = QAction('forward', self)
forward_btn.triggered.connect(self.browser.forward)
navbar.addAction(forward_btn)
reload_btn = QAction('Reload', self)
reload_btn.triggered.connect(self.browser.reload)
navbar.addAction(reload_btn)
home_btn = QAction('Home', self)
home_btn.triggered.connect(self.navigate_home)
navbar.addAction(home_btn)
self.url_bar = QLineEdit()
navbar.addWidget(self.url_bar)
self.url_bar.returnPressed.connect(self.navigate_to_url)
navbar.addWidget(self.url_bar)
self.browser.urlChanged.connect(self.update_url)
def navigate_home(self):
self.browser.setUrl(QUrl('http://google.com'))
def navigate_to_url(self):
url = self.url_bar.text()
self.browser.setUrl(QUrl(url))
def update_url(self, q):
self.url_bar.setText(q.toString())
app = QApplication(sys.argv)
QApplication.setApplicationName('lolol')
window = MainWindow()
app.exec_()
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