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82 lines
2.6 KiB
Python
82 lines
2.6 KiB
Python
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'''
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IOS file chooser
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--------------------
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This module houses the iOS implementation of the plyer FileChooser.
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.. versionadded:: 1.4.4
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'''
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from plyer.facades import FileChooser
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from pyobjus import autoclass, protocol
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from pyobjus.dylib_manager import load_framework
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load_framework('/System/Library/Frameworks/Photos.framework')
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class IOSFileChooser(FileChooser):
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'''
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FileChooser implementation for IOS using
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the built-in file browser via UIImagePickerController.
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.. versionadded:: 1.4.0
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'''
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self._on_selection = None
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def _file_selection_dialog(self, *args, **kwargs):
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"""
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Function called when action is required, A "mode" parameter specifies
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which and is one of "open", "save" or "dir".
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"""
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self._on_selection = kwargs["on_selection"]
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if kwargs["mode"] == "open":
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self._open()
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else:
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raise NotImplementedError()
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def _get_picker(self):
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"""
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Return an instantiated and configured UIImagePickerController.
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"""
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picker = autoclass("UIImagePickerController")
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po = picker.alloc().init()
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po.sourceType = 0
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po.delegate = self
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return po
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def _open(self):
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"""
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Launch the native iOS file browser. Upon selection, the
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`imagePickerController_didFinishPickingMediaWithInfo_` delegate is
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called where we close the file browser and handle the result.
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"""
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picker = self._get_picker()
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UIApplication = autoclass('UIApplication')
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vc = UIApplication.sharedApplication().keyWindow.rootViewController()
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vc.presentViewController_animated_completion_(picker, True, None)
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@protocol('UIImagePickerControllerDelegate')
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def imagePickerController_didFinishPickingMediaWithInfo_(
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self, image_picker, frozen_dict):
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"""
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Delegate which handles the result of the image selection process.
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"""
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image_picker.dismissViewControllerAnimated_completion_(True, None)
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# Note: We need to call this Objective C class as there is currently
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# no way to call a non-class function via pyobjus. And here,
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# we have to use the `UIImagePNGRepresentation` to get the png
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# representation. For this, please ensure you are using an
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# appropriate version of kivy-ios.
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native_image_picker = autoclass("NativeImagePicker").alloc().init()
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path = native_image_picker.writeToPNG_(frozen_dict)
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self._on_selection([path.UTF8String()])
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def instance():
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return IOSFileChooser()
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