Mercurial > libervia-desktop-kivy

comparison src/cagou/plugins/plugin_upload_android_gallery.py @ 88:3dc526bb4a5a

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upload: plugin android gallery, first draft: - added "external" key in PLUGIN_INFO which indicate that a plugin doesn't create a widget when set to True - callback and cancel_cb method in UploadMenu now use a cleaning_cb arguments which can be None. If set, the callback will be called without argument once the file is uploaded - the AndroidGallery plugin looks for images on Android, then save the content to a temporary file an upload it, then clean the file. This plugin is only active on android platform.
author Goffi <goffi@goffi.org>
date Sun, 25 Dec 2016 22:53:50 +0100
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87:17094a075fd2 88:3dc526bb4a5a
1 #!/usr/bin/python
2 # -*- coding: utf-8 -*-
3
4 # Cagou: desktop/mobile frontend for Salut à Toi XMPP client
5 # Copyright (C) 2016 Jérôme Poisson (goffi@goffi.org)
6
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU Affero General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
11
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU Affero General Public License for more details.
16
17 # You should have received a copy of the GNU Affero General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19
20
21 from sat.core import log as logging
22 log = logging.getLogger(__name__)
23 from sat.core.i18n import _
24 import sys
25 import tempfile
26 import os
27 import os.path
28 if sys.platform=="android":
29 from jnius import autoclass
30 from android import activity, mActivity
31
32 Intent = autoclass('android.content.Intent')
33 OpenableColumns = autoclass('android.provider.OpenableColumns')
34 PHOTO_GALLERY = 1
35 RESULT_OK = -1
36
37
38
39 PLUGIN_INFO = {
40 "name": _(u"photo"),
41 "main": "AndroidGallery",
42 "platforms": ('android',),
43 "external": True,
44 "description": _(u"upload a photo from photo gallery"),
45 }
46
47
48 class AndroidGallery(object):
49
50 def __init__(self, callback, cancel_cb):
51 self.callback = callback
52 self.cancel_cb = cancel_cb
53 activity.bind(on_activity_result=self.on_activity_result)
54 intent = Intent()
55 intent.setType('image/*')
56 intent.setAction(Intent.ACTION_GET_CONTENT)
57 mActivity.startActivityForResult(intent, PHOTO_GALLERY);
58
59 def on_activity_result(self, requestCode, resultCode, data):
60 # TODO: move file dump to a thread or use async callbacks during file writting
61 if requestCode == PHOTO_GALLERY and resultCode == RESULT_OK:
62 if data is None:
63 log.warning(u"No data found in activity result")
64 self.cancel_cb(self, None)
65 return
66 uri = data.getData()
67
68 # we get filename in the way explained at https://developer.android.com/training/secure-file-sharing/retrieve-info.html
69 cursor = mActivity.getContentResolver().query(uri, None, None, None, None )
70 name_idx = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
71 cursor.moveToFirst()
72 filename = cursor.getString(name_idx)
73
74 # we save data in a temporary file that we send to callback
75 # the file will be removed once upload is done (or if an error happens)
76 input_stream = mActivity.getContentResolver().openInputStream(uri)
77 tmp_dir = tempfile.mkdtemp()
78 tmp_file = os.path.join(tmp_dir, filename)
79 def cleaning():
80 os.unlink(tmp_file)
81 os.rmdir(tmp_dir)
82 log.debug(u'temporary file cleaned')
83 buff = bytearray(4096)
84 with open(tmp_file, 'wb') as f:
85 while True:
86 ret = input_stream.read(buff, 0, 4096)
87 if ret != -1:
88 f.write(buff)
89 else:
90 break
91 input_stream.close()
92 self.callback(tmp_file, cleaning)
93 else:
94 self.cancel_cb(self, None)