1 files changed, 249 insertions, 0 deletions

diff --git a/src/ui/chat.c b/src/ui/chat.c
new file mode 100644
index 0000000..7e5c1fc
--- /dev/null
+++ b/src/ui/chat.c
@@ -0,0 +1,249 @@
+/*
+   This file is part of GNUnet.
+   Copyright (C) 2021 GNUnet e.V.
+
+   GNUnet 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.
+
+   GNUnet 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/>.
+
+   SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/*
+ * @author Tobias Frisch
+ * @file ui/chat.c
+ */
+
+#include "chat.h"
+
+#include "messenger.h"
+#include "../application.h"
+
+static void
+handle_flap_via_button_click(UNUSED GtkButton* button,
+                             gpointer user_data)
+{
+  HdyFlap* flap = HDY_FLAP(user_data);
+
+  if (TRUE == hdy_flap_get_reveal_flap(flap)) {
+    hdy_flap_set_reveal_flap(flap, FALSE);
+  } else {
+    hdy_flap_set_reveal_flap(flap, TRUE);
+  }
+}
+
+static void
+handle_back_button_click(UNUSED GtkButton* button,
+                         gpointer user_data)
+{
+  HdyLeaflet* leaflet = HDY_LEAFLET(user_data);
+
+  GList* children = gtk_container_get_children(GTK_CONTAINER(leaflet));
+
+  if (children) {
+    hdy_leaflet_set_visible_child(leaflet, GTK_WIDGET(children->data));
+  }
+}
+
+static void
+handle_send_text_buffer_changed(GtkTextBuffer *buffer,
+                                gpointer user_data)
+{
+  GtkImage *symbol = GTK_IMAGE(user_data);
+
+  GtkTextIter start, end;
+  gtk_text_buffer_get_start_iter(buffer, &start);
+  gtk_text_buffer_get_end_iter(buffer, &end);
+
+  const gchar *text = gtk_text_buffer_get_text(buffer, &start, &end, TRUE);
+
+  gtk_image_set_from_icon_name(
+      symbol,
+      0 < g_utf8_strlen(text, 1)?
+      "mail-send-symbolic" :
+      "audio-input-microphone-symbolic",
+      GTK_ICON_SIZE_BUTTON
+  );
+}
+
+static gboolean
+_send_text_from_view(MESSENGER_Application *app,
+                     GtkTextView *text_view)
+{
+  GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
+
+  GtkTextIter start, end;
+  gtk_text_buffer_get_start_iter(buffer, &start);
+  gtk_text_buffer_get_end_iter(buffer, &end);
+
+  const gchar *text = gtk_text_buffer_get_text(buffer, &start, &end, TRUE);
+
+  if (0 == g_utf8_strlen(text, 1))
+    return FALSE;
+
+  struct GNUNET_CHAT_Context *context = g_hash_table_lookup(
+    app->ui.bindings, text_view
+  );
+
+  if (context)
+    GNUNET_CHAT_context_send_text(context, text);
+
+  gtk_text_buffer_delete(buffer, &start, &end);
+  return TRUE;
+}
+
+static void
+handle_send_record_button_click(GtkButton *button,
+                                gpointer user_data)
+{
+  MESSENGER_Application *app = (MESSENGER_Application*) user_data;
+
+  GtkTextView *text_view = GTK_TEXT_VIEW(
+      g_hash_table_lookup(app->ui.bindings, button)
+  );
+
+  if (!_send_text_from_view(app, text_view))
+  {
+    // TODO: record audio and attach as file?
+  }
+}
+
+static gboolean
+handle_send_text_key_press (GtkWidget *widget,
+                            GdkEventKey *event,
+                            gpointer user_data)
+{
+  MESSENGER_Application *app = (MESSENGER_Application*) user_data;
+
+  if ((app->ui.mobile) ||
+      (event->state & GDK_SHIFT_MASK) ||
+      ((event->keyval != GDK_KEY_Return) &&
+       (event->keyval != GDK_KEY_KP_Enter)))
+    return FALSE;
+
+  return _send_text_from_view(app, GTK_TEXT_VIEW(widget));
+}
+
+UI_CHAT_Handle*
+ui_chat_new(MESSENGER_Application *app)
+{
+  UI_CHAT_Handle *handle = g_malloc(sizeof(UI_CHAT_Handle));
+  UI_MESSENGER_Handle *messenger = &(app->ui.messenger);
+
+  GtkBuilder* builder = gtk_builder_new_from_file(
+      "resources/ui/chat.ui"
+  );
+
+  handle->chat_box = GTK_WIDGET(
+      gtk_builder_get_object(builder, "chat_box")
+  );
+
+  handle->back_button = GTK_BUTTON(
+      gtk_builder_get_object(builder, "back_button")
+  );
+
+  g_object_bind_property(
+      messenger->leaflet_chat,
+      "folded",
+      handle->back_button,
+      "visible",
+      G_BINDING_SYNC_CREATE
+  );
+
+  g_signal_connect(
+      handle->back_button,
+      "clicked",
+      G_CALLBACK(handle_back_button_click),
+      messenger->leaflet_chat
+  );
+
+  handle->chat_title = GTK_LABEL(
+      gtk_builder_get_object(builder, "chat_title")
+  );
+
+  handle->chat_subtitle = GTK_LABEL(
+      gtk_builder_get_object(builder, "chat_subtitle")
+  );
+
+  handle->chat_details_button = GTK_BUTTON(
+      gtk_builder_get_object(builder, "chat_details_button")
+  );
+
+  g_signal_connect(
+      handle->chat_details_button,
+      "clicked",
+      G_CALLBACK(handle_flap_via_button_click),
+      messenger->flap_chat_details
+  );
+
+  handle->messages_listbox = GTK_LIST_BOX(
+      gtk_builder_get_object(builder, "messages_listbox")
+  );
+
+  handle->attach_file_button = GTK_BUTTON(
+      gtk_builder_get_object(builder, "attach_file_button")
+  );
+
+  handle->send_text_view = GTK_TEXT_VIEW(
+      gtk_builder_get_object(builder, "send_text_view")
+  );
+
+  handle->emoji_button = GTK_BUTTON(
+      gtk_builder_get_object(builder, "emoji_button")
+  );
+
+  handle->send_record_button = GTK_BUTTON(
+      gtk_builder_get_object(builder, "send_record_button")
+  );
+
+  handle->send_record_symbol = GTK_IMAGE(
+      gtk_builder_get_object(builder, "send_record_symbol")
+  );
+
+  GtkTextBuffer *send_text_buffer = gtk_text_view_get_buffer(
+      handle->send_text_view
+  );
+
+  g_signal_connect(
+      send_text_buffer,
+      "changed",
+      G_CALLBACK(handle_send_text_buffer_changed),
+      handle->send_record_symbol
+  );
+
+  g_signal_connect(
+      handle->send_record_button,
+      "clicked",
+      G_CALLBACK(handle_send_record_button_click),
+      app
+  );
+
+  g_signal_connect(
+      handle->send_text_view,
+      "key-press-event",
+      G_CALLBACK(handle_send_text_key_press),
+      app
+  );
+
+  g_hash_table_insert(
+      app->ui.bindings,
+      handle->send_record_button,
+      handle->send_text_view
+  );
+
+  return handle;
+}
+
+void
+ui_chat_delete(UI_CHAT_Handle *handle)
+{
+  g_free(handle);
+}