imprv: ChatBanner: Add QR code for sharing JIDs

Fixes #11429

3 files changed, 29 insertions, 1 deletions

diff --git a/gajim/data/gui/chat_banner.ui b/gajim/data/gui/chat_banner.ui
index 653875be7..b92657b54 100644
--- a/gajim/data/gui/chat_banner.ui
+++ b/gajim/data/gui/chat_banner.ui
@@ -9,7 +9,24 @@
         <property name="visible">True</property>
         <property name="can-focus">False</property>
         <property name="orientation">vertical</property>
-        <property name="spacing">6</property>
+        <property name="spacing">12</property>
+        <child>
+          <object class="GtkImage" id="qr_code_image">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="halign">center</property>
+            <property name="icon_size">6</property>
+            <style>
+              <class name="border"/>
+            </style>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="pack-type">end</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
         <child>
           <object class="GtkBox">
             <property name="visible">True</property>
@@ -226,6 +243,7 @@
             <property name="tooltip-text" translatable="yes">Share Contact…</property>
             <property name="valign">center</property>
             <property name="popover">share_popover</property>
+            <signal name="clicked" handler="_on_share_clicked" swapped="no"/>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
diff --git a/gajim/gtk/builder.pyi b/gajim/gtk/builder.pyi
index f0d2fbabf..224ad1d46 100644
--- a/gajim/gtk/builder.pyi
+++ b/gajim/gtk/builder.pyi
@@ -187,6 +187,7 @@ class CertificateBuilder(Builder):
 
 class ChatBannerBuilder(Builder):
     share_popover: Gtk.Popover
+    qr_code_image: Gtk.Image
     jid_label: Gtk.Label
     banner_box: Gtk.Box
     avatar_image: Gtk.Image
diff --git a/gajim/gtk/chat_banner.py b/gajim/gtk/chat_banner.py
index 249e5823a..a70f7283c 100644
--- a/gajim/gtk/chat_banner.py
+++ b/gajim/gtk/chat_banner.py
@@ -32,6 +32,7 @@ from gajim.common.events import BookmarksReceived
 from gajim.common.events import MessageReceived
 from gajim.common.events import MucDiscoUpdate
 from gajim.common.ged import EventHelper
+from gajim.common.helpers import generate_qr_code
 from gajim.common.i18n import _
 from gajim.common.modules.contacts import BareContact
 from gajim.common.modules.contacts import GroupchatContact
@@ -330,6 +331,14 @@ class ChatBanner(Gtk.Box, EventHelper):
         self._ui.share_menu_button.set_sensitive(True)
         self._ui.jid_label.set_text(str(self._contact.jid))
 
+    def _on_share_clicked(self, _button: Gtk.Button) -> None:
+        # Generate QR code on demand (i.e. not when switching chats)
+        assert self._contact is not None
+        text = f'xmpp:{self._contact.jid}'
+        if self._contact.is_groupchat:
+            text = f'{text}?join'
+        self._ui.qr_code_image.set_from_pixbuf(generate_qr_code(text))
+
     def _on_copy_jid_clicked(self, _button: Gtk.Button) -> None:
         assert self._contact is not None
         text = f'xmpp:{self._contact.jid}'