[form_handler] Add Form Handler plugin

form_handler/plugin.py

@@ -0,0 +1,97 @@
+# Copyright (C) 2018 Philipp Hörist <philipp AT hoerist.com>
+#
+# This file is part of Form Handler.
+#
+# Form Handler is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published
+# by the Free Software Foundation; version 3 only.
+#
+# Form Handler 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Form Handler. If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+
+import nbxmpp
+
+from gajim.common import ged
+from gajim.common.modules.dataforms import extend_form
+
+from gajim.plugins import GajimPlugin
+from gajim.plugins.plugins_i18n import _
+
+from form_handler.gtk.util import get_button
+from form_handler.gtk.form import FormDialog
+
+log = logging.getLogger('gajim.plugin_system.form_handler')
+
+
+class FormHandlerPlugin(GajimPlugin):
+    def init(self):
+
+        self.config_dialog = None
+
+        self.events_handlers = {
+            'decrypted-message-received': (ged.CORE,
+                                           self._on_message_received),
+        }
+
+        self.gui_extension_points = {
+            'print_real_text': (self._print_text, None),
+        }
+
+    def _on_message_received(self, event):
+        form = event.stanza.getTag('x', namespace=nbxmpp.NS_DATA)
+        if form is None:
+            return
+
+        if form.getAttr('type') != 'form':
+            return
+
+        data = self._parse_form(form)
+
+        data['form'] = str(form)
+        data['jid'] = event.jid
+
+        event.additional_data['form_handler'] = data
+
+    @staticmethod
+    def _parse_form(form):
+        dataform = extend_form(node=form)
+        result = {}
+        try:
+            result['submit-text'] = dataform['submit-button-text'].value
+        except KeyError:
+            result['submit-text'] = _('Submit')
+
+        try:
+            result['open-text'] = dataform['open-button-text'].value
+        except KeyError:
+            result['open-text'] = _('Open')
+
+        return result
+
+    def _print_text(self, tv, _real_text, _text_tags, _graphics,
+                    iter_, additional_data):
+        if 'form_handler' not in additional_data:
+            return
+
+        data = additional_data['form_handler']
+        data['account'] = tv.account
+
+        button = get_button(data['open-text'], data, self._show_form)
+
+        buffer_ = tv.tv.get_buffer()
+        anchor = buffer_.create_child_anchor(iter_)
+        anchor.plaintext = ''
+
+        button.show_all()
+        tv.tv.add_child_at_anchor(button, anchor)
+
+    @staticmethod
+    def _show_form(_button, data):
+        FormDialog(data)