将文件从桌面拖到GUI（PyQt5）

Question

例如，当我将文件从桌面或文件夹拖到gui（窗口小部件输入）时，我需要获取名称和扩展名。

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.setEnabled(True)
        MainWindow.resize(200, 100)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit.setGeometry(QtCore.QRect(20, 10, 104, 71))
        MainWindow.setCentralWidget(self.centralwidget)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.textEdit.setHtml(_translate("MainWindow", ""))

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())