Python QWebPage.setNetworkAccessManager方法代码示例

# 需要导入模块: from PyQt5.QtWebKitWidgets import QWebPage [as 别名]
# 或者: from PyQt5.QtWebKitWidgets.QWebPage import setNetworkAccessManager [as 别名]
def webpage(qnam):
    """Get a new QWebPage object."""
    from PyQt5.QtWebKitWidgets import QWebPage

    page = QWebPage()
    page.networkAccessManager().deleteLater()
    page.setNetworkAccessManager(qnam)
    return page

# 需要导入模块: from PyQt5.QtWebKitWidgets import QWebPage [as 别名]
# 或者: from PyQt5.QtWebKitWidgets.QWebPage import setNetworkAccessManager [as 别名]
class Browser(object):

    def __init__(self):
        self.network_manager = QNetworkAccessManager()
        self.network_manager.createRequest = self._create_request
        self.network_manager.finished.connect(self._request_finished)

        self.web_page = QWebPage()
        self.web_page.setNetworkAccessManager(self.network_manager)

        self.web_view = QWebView()
        self.web_view.setPage(self.web_page)

    def _create_request(self, operation, request, data):
        print(data.readAll())
        reply = QNetworkAccessManager.createRequest(self.network_manager,
                                                    operation,
                                                    request,
                                                    data)
        return reply

    def _request_finished(self, reply):
        if not reply.error() == QNetworkReply.NoError:
            # request probably failed
            print(reply.error())
            print(reply.errorString())

    def _make_request(self, url):
        request = QNetworkRequest()
        request.setUrl(QUrl(url))
        return request

    def _urlencode_post_data(self, post_data):
        post_params = QUrl()
        for (key, value) in post_data.items():
            post_params.addQueryItem(key, value)

        return post_params.encodedQuery()

    def perform(self, url, method='GET', post_data=dict()):
        request = self._make_request(url)

        if method == 'GET':
            self.web_view.load(request)
        else:
            encoded_data = self._urlencode_post_data(post_data)
            request.setRawHeader('Content-Type',
                                 QByteArray('application/x-www-form-urlencoded'))
            self.web_view.load(request,
                               QNetworkAccessManager.PostOperation,
                               encoded_data)

# 需要导入模块: from PyQt5.QtWebKitWidgets import QWebPage [as 别名]
# 或者: from PyQt5.QtWebKitWidgets.QWebPage import setNetworkAccessManager [as 别名]
class PageThumbnailer(QObject):
    """
    Class implementing a thumbnail creator for web sites.
    
    @signal thumbnailCreated(QPixmap) emitted after the thumbnail has been
        created
    """
    thumbnailCreated = pyqtSignal(QPixmap)
    
    def __init__(self, parent=None):
        """
        Constructor
        
        @param parent reference to the parent object (QObject)
        """
        super(PageThumbnailer, self).__init__(parent)
        
        self.__page = QWebPage(self)
        self.__size = QSize(231, 130)
        self.__loadTitle = False
        self.__title = ""
        self.__url = QUrl()
        
        self.__proxy = NetworkAccessManagerProxy(self)
        import Helpviewer.HelpWindow
        self.__proxy.setPrimaryNetworkAccessManager(
            Helpviewer.HelpWindow.HelpWindow.networkAccessManager())
        self.__page.setNetworkAccessManager(self.__proxy)
        
        self.__page.mainFrame().setScrollBarPolicy(
            Qt.Horizontal, Qt.ScrollBarAlwaysOff)
        self.__page.mainFrame().setScrollBarPolicy(
            Qt.Vertical, Qt.ScrollBarAlwaysOff)
        
        # Full HD
        # Every page should fit in this resolution
        self.__page.setViewportSize(QSize(1920, 1080))
    
    def setSize(self, size):
        """
        Public method to set the size of the image.
        
        @param size size of the image (QSize)
        """
        if size.isValid():
            self.__size = QSize(size)
    
    def setUrl(self, url):
        """
        Public method to set the URL of the site to be thumbnailed.
        
        @param url URL of the web site (QUrl)
        """
        if url.isValid():
            self.__url = QUrl(url)
    
    def url(self):
        """
        Public method to get the URL of the thumbnail.
        
        @return URL of the thumbnail (QUrl)
        """
        return QUrl(self.__url)
    
    def loadTitle(self):
        """
        Public method to check, if the title is loaded from the web site.
        
        @return flag indicating, that the title is loaded (boolean)
        """
        return self.__loadTitle
    
    def setLoadTitle(self, load):
        """
        Public method to set a flag indicating to load the title from
        the web site.
        
        @param load flag indicating to load the title (boolean)
        """
        self.__loadTitle = load
    
    def title(self):
        """
        Public method to get the title of the thumbnail.
        
        @return title of the thumbnail (string)
        """
        return self.__title
    
    def start(self):
        """
        Public method to start the thumbnailing action.
        """
        self.__page.loadFinished.connect(self.__createThumbnail)
        self.__page.mainFrame().load(self.__url)
    
    def __createThumbnail(self, status):
        """
        Private slot creating the thumbnail of the web site.
        
#.........这里部分代码省略.........