窗口不会在外部 url 链接点击上打开新窗口或标签

问题描述

我需要使用 pyQt5 打开一个 URL.该页面有几个打开新窗口的链接.pyQt5 会为 URL 打开一个窗口，但在单击应打开新窗口的链接后不执行任何操作.P.S 我使用的是 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_())

我希望它可以在任何网页上点击 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.

推荐答案

你必须重写 createWindow 方法并返回一个 QWebEngineView，但是要使对象不被干扰，它必须是另一个窗口的子窗口或者是某个窗口的一部分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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