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75 lines
2.7 KiB
Python
75 lines
2.7 KiB
Python
'''
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Native filechooser dialog facade.
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=================================
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open_file, save_file and choose_dir accept a number of arguments
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listed below. They return either a list of paths (normally
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absolute), or None if no file was selected or the operation was
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canceled and no result is available.
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Arguments:
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* **path** *(string or None)*: a path that will be selected
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by default, or None
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* **multiple** *(bool)*: True if you want the dialog to
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allow multiple file selection. (Note: Windows doesn't
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support multiple directory selection)
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* **filters** *(iterable)*: either a list of wildcard patterns
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or of sequences that contain the name of the filter and any
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number of wildcards that will be grouped under that name
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(e.g. [["Music", "*mp3", "*ogg", "*aac"], "*jpg", "*py"])
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* **preview** *(bool)*: True if you want the file chooser to
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show a preview of the selected file, if supported by the
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back-end.
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* **title** *(string or None)*: The title of the file chooser
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window, or None for the default title.
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* **icon** *(string or None)*: Path to the icon of the file
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chooser window (where supported), or None for the back-end's
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default.
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* **show_hidden** *(bool)*: Force showing hidden files (currently
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supported only on Windows)
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* **on_selection** *(func)*: Callback for fetching the selection.
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Important: these methods will return only after user interaction.
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Use threads or you will stop the mainloop if your app has one.
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.. versionchanged:: 1.4.0
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Added Android implementation for open_file()
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Added ``on_selection`` kwarg for callback function
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Supported Plaforms
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------------------
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Android, iOS, macOS, Linux, Windows
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'''
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class FileChooser:
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'''
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File Chooser facade.
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'''
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def open_file(self, *args, **kwargs):
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"""
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Open the file chooser in "open" mode.
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"""
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return self._file_selection_dialog(mode="open", *args, **kwargs)
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def save_file(self, *args, **kwargs):
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"""
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Open the file chooser in "save" mode. Confirmation will be asked
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when a file with the same name already exists.
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"""
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return self._file_selection_dialog(mode="save", *args, **kwargs)
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def choose_dir(self, *args, **kwargs):
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"""
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Open the directory chooser. Note that on Windows this is very
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limited. Consider writing your own chooser if you target that
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platform and are planning on using unsupported features.
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"""
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return self._file_selection_dialog(mode="dir", *args, **kwargs)
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# private
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def _file_selection_dialog(self, **kwargs):
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raise NotImplementedError()
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