--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/desktop_kivy/plugins/plugin_transfer_android_gallery.py	Fri Jun 02 18:26:16 2023 +0200
@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+
+
+#Libervia Desktop-Kivy
+# Copyright (C) 2016-2021 Jérôme Poisson (goffi@goffi.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from libervia.backend.core import log as logging
+log = logging.getLogger(__name__)
+from libervia.backend.core.i18n import _
+import sys
+import tempfile
+import os
+import os.path
+if sys.platform=="android":
+    from jnius import autoclass
+    from android import activity, mActivity
+
+    Intent = autoclass('android.content.Intent')
+    OpenableColumns = autoclass('android.provider.OpenableColumns')
+    PHOTO_GALLERY = 1
+    RESULT_OK = -1
+
+
+
+PLUGIN_INFO = {
+    "name": _("gallery"),
+    "main": "AndroidGallery",
+    "platforms": ('android',),
+    "external": True,
+    "description": _("upload a photo from photo gallery"),
+    "icon_medium": "{media}/icons/muchoslava/png/gallery_50.png",
+}
+
+
+class AndroidGallery:
+
+    def __init__(self, callback, cancel_cb):
+        self.callback = callback
+        self.cancel_cb = cancel_cb
+        activity.bind(on_activity_result=self.on_activity_result)
+        intent = Intent()
+        intent.setType('image/*')
+        intent.setAction(Intent.ACTION_GET_CONTENT)
+        mActivity.startActivityForResult(intent, PHOTO_GALLERY);
+
+    def on_activity_result(self, requestCode, resultCode, data):
+        activity.unbind(on_activity_result=self.on_activity_result)
+        # TODO: move file dump to a thread or use async callbacks during file writting
+        if requestCode == PHOTO_GALLERY and resultCode == RESULT_OK:
+            if data is None:
+                log.warning("No data found in activity result")
+                self.cancel_cb(self, None)
+                return
+            uri = data.getData()
+
+            # we get filename in the way explained at https://developer.android.com/training/secure-file-sharing/retrieve-info.html
+            cursor = mActivity.getContentResolver().query(uri, None, None, None, None )
+            name_idx = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+            cursor.moveToFirst()
+            filename = cursor.getString(name_idx)
+
+            # we save data in a temporary file that we send to callback
+            # the file will be removed once upload is done (or if an error happens)
+            input_stream = mActivity.getContentResolver().openInputStream(uri)
+            tmp_dir = tempfile.mkdtemp()
+            tmp_file = os.path.join(tmp_dir, filename)
+            def cleaning():
+                os.unlink(tmp_file)
+                os.rmdir(tmp_dir)
+                log.debug('temporary file cleaned')
+            buff = bytearray(4096)
+            with open(tmp_file, 'wb') as f:
+                while True:
+                    ret = input_stream.read(buff, 0, 4096)
+                    if ret != -1:
+                        f.write(buff)
+                    else:
+                        break
+            input_stream.close()
+            self.callback(tmp_file, cleaning)
+        else:
+            self.cancel_cb(self, None)