窗口未在外部 url 链接上打开新窗口或选项卡单击

2022-01-12 00:00:00 python python-3.x pyqt pyqt5 qwebengineview

问题描述

我需要使用 pyQt5 打开一个 URL.该页面有几个链接可以打开一个新窗口.pyQt5 为 URL 打开一个窗口，但在单击应该打开一个新窗口的链接后不执行任何操作.PS我正在使用pyQt5.6

I need to open an URL using pyQt5. The page has several links that open a new window. pyQt5 opens a windows for the URL but does not do anything after clicking on a link that should open a new window. P.S I'm using pyQt5.6

我已经在 Linux centOs 上尝试过，但没有任何效果.

I have tried it on Linux centOs but nothing works.

from PyQt5.QtCore import QUrl
from PyQt5.QtGui import QDesktopServices
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEnginePage


class WebEnginePage(QWebEnginePage):
    def acceptNavigationRequest(self, url,  _type, isMainFrame):
        if _type == QWebEnginePage.NavigationTypeLinkClicked:
            return True
        return QWebEnginePage.acceptNavigationRequest(self, url,  _type,      isMainFrame)

class HtmlView(QWebEngineView):
    def __init__(self, *args, **kwargs):
        QWebEngineView.__init__(self, *args, **kwargs)
        self.setPage(WebEnginePage(self))

if __name__ == '__main__':
    import sys

    app = QApplication(sys.argv)
    w = HtmlView()
    w.load(QUrl("https://gmail.com"));
    w.show()
    sys.exit(app.exec_())

我希望它会在任何网页上单击 target='_blank' 时打开一个新窗口.

I expect it to open a new window on click of target='_blank' on any webpage.

解决方案

你必须重写 createWindow 方法并返回一个 QWebEngineView，但是为了不破坏对象，它必须是另一个窗口的子窗口或者是具有更长生命周期的容器.

You have to override the createWindow method and return a QWebEngineView, but for the object not to be distruded it must be the child of another window or be part of a container that has a longer life cycle.

from PyQt5 import QtCore, QtGui, QtWidgets, QtWebEngineWidgets

class WebEnginePage(QtWebEngineWidgets.QWebEnginePage):
    def acceptNavigationRequest(self, url,  _type, isMainFrame):
        if _type == QtWebEngineWidgets.QWebEnginePage.NavigationTypeLinkClicked:
            return True
        return super(WebEnginePage, self).acceptNavigationRequest(url, _type, isMainFrame)

class HtmlView(QtWebEngineWidgets.QWebEngineView):
    def __init__(self, windows, *args, **kwargs):
        super(HtmlView, self).__init__(*args, **kwargs)
        self.setPage(WebEnginePage(self))
        self._windows = windows
        self._windows.append(self)

    def createWindow(self, _type):
        if QtWebEngineWidgets.QWebEnginePage.WebBrowserTab:
            v = HtmlView(self._windows)
            v.resize(640, 480)
            v.show()
            return v

if __name__ == '__main__':
    import sys

    app = QtWidgets.QApplication(sys.argv)
    windows = []
    w = HtmlView(windows)
    w.load(QtCore.QUrl("https://gmail.com"));
    w.show()
    sys.exit(app.exec_())

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