Question

我正在尝试使用Python + pygtk + webkit构建浏览器。现在，我想扼杀速度连接（即）加载网页或下载速度的时间......主要是http ..

那么，我可以使用任何协议或webkit方法。以下是我的浏览器代码。提前谢谢!!

import webkit
import gobject

class Browser:
    default_site = "http://stackoverflow.com/"

    def delete_event(self, widget, event, data=None):
        return False

    def destroy(self, widget, data=None):
        gtk.main_quit()

    def __init__(self):
        gobject.threads_init()
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
        self.window.set_resizable(True)
        self.window.connect("delete_event", self.delete_event)
        self.window.connect("destroy", self.destroy)

        #webkit.WebView allows us to embed a webkit browser
        #it takes care of going backwards/fowards/reloading
        #it even handles flash
        self.web_view = webkit.WebView()
        self.web_view.open(self.default_site)

        toolbar = gtk.Toolbar()

        #create the back button and connect the action to
        #allow us to go backwards using webkit
        self.back_button = gtk.ToolButton(gtk.STOCK_GO_BACK)
        self.back_button.connect("clicked", self.go_back)

        #same idea for forward button
        self.forward_button = gtk.ToolButton(gtk.STOCK_GO_FORWARD)
        self.forward_button.connect("clicked", self.go_forward)

        #again for refresh
        refresh_button = gtk.ToolButton(gtk.STOCK_REFRESH)
        refresh_button.connect("clicked", self.refresh)

        #add the buttons to the toolbar
        toolbar.add(self.back_button)
        toolbar.add(self.forward_button)
        toolbar.add(refresh_button)

        #entry bar for typing in and display URLs, when they type in a site
        #and hit enter the on_active function is called
        self.url_bar = gtk.Entry()
        self.url_bar.connect("activate", self.on_active)

        #anytime a site is loaded the update_buttons will be called
        self.web_view.connect("load_committed", self.update_buttons)

        scroll_window = gtk.ScrolledWindow(None, None)
        scroll_window.add(self.web_view)


        vbox = gtk.VBox(False, 0)
        vbox.pack_start(toolbar, False, True, 0)
        vbox.pack_start(self.url_bar, False, True, 0)
        vbox.add(scroll_window)

        self.window.add(vbox)
        self.window.show_all()

    def on_active(self, widge, data=None):
        '''When the user enters an address in the bar, we check to make
           sure they added the http://, if not we add it for them.  Once
           the url is correct, we just ask webkit to open that site.'''
        url = self.url_bar.get_text()
        try:
            url.index("://")
        except:
            url = "http://"+url
        self.url_bar.set_text(url)
        self.web_view.open(url)

    def go_back(self, widget, data=None):
        '''Webkit will remember the links and this will allow us to go
           backwards.'''
        self.web_view.go_back()

    def go_forward(self, widget, data=None):
        '''Webkit will remember the links and this will allow us to go
           forwards.'''
        self.web_view.go_forward()

    def refresh(self, widget, data=None):
        '''Simple makes webkit reload the current back.'''
        self.web_view.reload()

    def update_buttons(self, widget, data=None):
        '''Gets the current url entry and puts that into the url bar.
           It then checks to see if we can go back, if we can it makes the
           back button clickable.  Then it does the same for the foward
           button.'''
        #self.url_bar.set_text( widget.get_main_frame().get_uri() )
        url = str(widget.get_main_frame().get_uri())
        print url
        if (url == "http://www.facebook.com/"):
            self.__go("age_error.html")
        else:    
            self.url_bar.set_text( widget.get_main_frame().get_uri() )
            print  widget.get_main_frame().get_uri() 
            self.back_button.set_sensitive(self.web_view.can_go_back())
            self.forward_button.set_sensitive(self.web_view.can_go_forward())

    def main(self):
        gtk.main()

if __name__ == "__main__":
    browser = Browser()

    browser.main()

Answer 1

如果有办法使用您自己的发送/接收代码，您可以将其实现为read（）+ sleep（）。例如，假设您希望它使用“50％带宽”，您可以将read（）计时，然后再睡眠一段时间。

网络速度限制

1 个答案: