Question

我在python中有一个简单的浏览器

#!/usr/bin/env python
import sys
import gtk
import webkit
DEFAULT_URL = 'http://www.stackoverflow.com' # Change this as you Wish
class SimpleBrowser: # needs GTK, Python, Webkit-GTK
    def __init__(self):
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
        self.window.set_position(gtk.WIN_POS_CENTER_ALWAYS)
        self.window.connect('delete_event', self.close_application)
        self.window.set_default_size(350, 20)
        vbox = gtk.VBox(spacing=5)
        vbox.set_border_width(5)
        self.txt_url = gtk.Entry()
        self.txt_url.connect('activate', self._txt_url_activate)
        self.scrolled_window = gtk.ScrolledWindow()
        self.webview = webkit.WebView()
        self.scrolled_window.add(self.webview)
        vbox.pack_start(self.scrolled_window, fill=True, expand=True)
        self.window.add(vbox)
    def _txt_url_activate(self, entry):
        self._load(entry.get_text())
    def _load(self, url):
        self.webview.open(url)
    def open(self, url):
        self.txt_url.set_text(url)
        self.window.set_title('%s' % url)
        self._load(url)
    def show(self):
        self.window.show_all()
    def close_application(self, widget, event, data=None):
        gtk.main_quit()
if __name__ == '__main__':
    if len(sys.argv) > 1:
        url = sys.argv[1]
    else:
        url = DEFAULT_URL
    gtk.gdk.threads_init()
    browser = SimpleBrowser()
    browser.open(url)
    browser.show()
    gtk.main()

我希望我的浏览器可以点击图片来更改当前系统上的壁纸。（我只需要一个例子，我现在不需要可移植性，只需在onclick就足够的时候在shell中执行一个命令。）

Answer 1

在ubuntu上安装PySide

# apt-get install python-pyside

或者找到如何将其安装到您的平台

import PySide.QtWebKit
import sys
from PyQt4 import QtGui


class BrowserWindow(PySide.QtWebKit.QWebView):

    SCRIPT_TEMPLATE = 'document.elementFromPoint({}, {});'

    def __init__(self, _parent):
        super(BrowserWindow, self).__init__()
        PySide.QtWebKit.QWebView(None)
        print('init')

    def mousePressEvent(self, event):
        # prepare script to execute
        frame = self.page().mainFrame()
        scroll = frame.scrollPosition()
        x = scroll.x() + event.x()
        y = scroll.y() + event.y()
        script = self.SCRIPT_TEMPLATE.format(x, y)

        # get 'src' attribute
        obj = frame.evaluateJavaScript(script)
        if 'src' in obj:
            src = obj['src']
        else:
            src = None

        # delegate event handling to super class
        if not src:
            return super(BrowserWindow, self).mousePressEvent(event)

        # download image and set wallpaper


if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    view = BrowserWindow(None)
    view.load("http://google.com")
    view.show()
    sys.exit(app.exec_())

您需要了解如何通过网址下载图片并将其设置为您的操作系统的壁纸。两者都是微不足道的。

添加从浏览器启动命令的可能性

1 个答案: