Nsryjdtyk

I am trying to filter elements in listview from the dropdown option user selected. Here is my code so far.

class DirectoryView(QWidget):

    def __init__(self):

        super().__init__()

        self.layout = QHBoxLayout(self)

        self.listview = QListView()

        self.layout.addWidget(self.listview)

        self.setAcceptDrops(True)

        self.listview.setSelectionMode(

            QtWidgets.QAbstractItemView.ExtendedSelection

        )

        self.fileModel = QFileSystemModel()

        self.listview.setModel(self.fileModel)

        self.cb = QComboBox()

        self.layout.addWidget(self.cb)

        self.cb.currentTextChanged.connect(self.filterClicked)

        self.cb.addItem(".mp4")

        self.cb.addItem(".gif")



    def dragEnterEvent(self, e):

        e.accept()



    def dropEvent(self, e):

        if e.mimeData().hasUrls():

            e.accept()

            for url in e.mimeData().urls():

                print(url)

                fname = str(url.toLocalFile())

        self.updateDirectoryView(fname)



    def updateDirectoryView(self,path):

        self.listview.setRootIndex(self.fileModel.setRootPath(path))



    def filterClicked(self):

        print("todo")

I want to filter elements when user change option of the dropdown.

You have to use setNameFilters() and pass a list of wildcards in addition set False to nameFilterDisables:

from PyQt5 import QtCore, QtGui, QtWidgets



class DirectoryView(QtWidgets.QWidget):

    def __init__(self):

        super().__init__()

        self.setAcceptDrops(True)



        self.listview = QtWidgets.QListView()

        self.listview.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)

        self.fileModel = QtWidgets.QFileSystemModel(nameFilterDisables=False)

        self.listview.setModel(self.fileModel)



        self.cb = QtWidgets.QComboBox()

        self.cb.currentTextChanged.connect(self.filterChanged)



        layout = QtWidgets.QHBoxLayout(self)

        layout.addWidget(self.listview)

        layout.addWidget(self.cb)



    def dragEnterEvent(self, e):

        e.accept()



    def dropEvent(self, e):

        if e.mimeData().hasUrls():

            e.accept()

            for url in e.mimeData().urls():

                if url.isLocalFile():

                    if self.updateDirectoryView(url.toLocalFile()):

                        break



    def updateDirectoryView(self, path):

        fi = QtCore.QFileInfo(path)

        if fi.isDir():

            self.listview.setRootIndex(self.fileModel.setRootPath(path))

            d = QtCore.QDir(path)

            suffixes = set()

            for fi in d.entryInfoList(filters=QtCore.QDir.Files):

                if fi.isFile():

                    suffixes.add("."+fi.suffix())

            self.cb.clear()

            self.cb.addItems(sorted(suffixes))

            return True

        return False



    @QtCore.pyqtSlot(str)

    def filterChanged(self, text):

        self.fileModel.setNameFilters(["*"+text])



if __name__ == '__main__':

    import sys

    app = QtWidgets.QApplication(sys.argv)

    w = DirectoryView()

    w.show()

    sys.exit(app.exec_())