问题描述
我正在创建一个小应用程序必须能够接收 URL.如果应用程序窗口打开,我应该能够从浏览器中拖动一个链接并将其拖放到应用程序中 - 应用程序会将 URL 保存到数据库中.
I'm creating a small app must be able to receive URLs. If the apps window is open, I should be able to drag a link from a browser and drop it into the app - and the app will save the URL to a database.
我正在 Python/GTk 中创建它.但我对其中的拖放功能有点困惑.那么,该怎么做呢?
I'm creating this in Python/GTk. But I am a bit confused about the drag and drop functionality in it. So, how do it?
一些实现拖放的示例代码(我的应用程序使用了一些此代码)...
Some sample code to implement drag/drop(my app uses a bit of this code)...
import pygtk pygtk.require('2.0') import gtk # function to print out the mime type of the drop item def drop_cb(wid, context, x, y, time): l.set_text(' '.join([str(t) for t in context.targets])) # What should I put here to get the URL of the link? context.finish(True, False, time) return True # Create a GTK window and Label, and hook up # drag n drop signal handlers to the window w = gtk.Window() w.set_size_request(200, 150) w.drag_dest_set(0, [], 0) w.connect('drag_drop', drop_cb) w.connect('destroy', lambda w: gtk.main_quit()) l = gtk.Label() w.add(l) w.show_all() # Start the program gtk.main()
推荐答案
您必须自己获取数据.这是一个简单的工作示例,它将为删除的 url 设置标签:
You must fetch the data yourself. Here's a simple working example that will set a label to the url dropped:
#!/usr/local/env python import pygtk pygtk.require('2.0') import gtk def motion_cb(wid, context, x, y, time): l.set_text(' '.join([str(t) for t in context.targets])) context.drag_status(gtk.gdk.ACTION_COPY, time) # Returning True which means "I accept this data". return True def drop_cb(wid, context, x, y, time): # Some data was dropped, get the data wid.drag_get_data(context, context.targets[-1], time) return True def got_data_cb(wid, context, x, y, data, info, time): # Got data. l.set_text(data.get_text()) context.finish(True, False, time) w = gtk.Window() w.set_size_request(200, 150) w.drag_dest_set(0, [], 0) w.connect('drag_motion', motion_cb) w.connect('drag_drop', drop_cb) w.connect('drag_data_received', got_data_cb) w.connect('destroy', lambda w: gtk.main_quit()) l = gtk.Label() w.add(l) w.show_all() gtk.main()