[fractal/split-async-state-ui-appop-mgmt: 5/13] Take UI querying out of AppOp::search_rooms

[Alejandro Domínguez <aledomu src gnome org>]

commit a098dbc424e035736dedb9bed07dc31f52038ae2
Author: Alejandro Domínguez <adomu net-c com>
Date:   Thu Dec 3 16:51:41 2020 +0100

    Take UI querying out of AppOp::search_rooms

 fractal-gtk/src/appop/directory.rs | 81 +-------------------------------------
 fractal-gtk/src/appop/mod.rs       |  6 +--
 fractal-gtk/src/ui/directory.rs    | 78 ++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+), 84 deletions(-)
---
diff --git a/fractal-gtk/src/appop/directory.rs b/fractal-gtk/src/appop/directory.rs
index 638f7d1e..a8d33e8a 100644
--- a/fractal-gtk/src/appop/directory.rs
+++ b/fractal-gtk/src/appop/directory.rs
@@ -3,7 +3,6 @@ use crate::app::RUNTIME;
 use crate::appop::AppOp;
 use crate::backend::{directory, HandleError};
 use crate::model::room::Room;
-use gtk::prelude::*;
 use matrix_sdk::directory::RoomNetwork;
 use matrix_sdk::thirdparty::ProtocolInstance;
 
@@ -30,86 +29,11 @@ impl AppOp {
     pub fn search_rooms(&mut self) {
         let session_client =
             unwrap_or_unit_return!(self.login_data.as_ref().map(|ld| ld.session_client.clone()));
-        let other_protocol_radio = self
-            .ui
-            .builder
-            .get_object::<gtk::RadioButton>("other_protocol_radio")
-            .expect("Can't find other_protocol_radio in ui file.");
-
-        let protocol: Option<String> = if other_protocol_radio.get_active() {
-            let protocol_combo = self
-                .ui
-                .builder
-                .get_object::<gtk::ComboBox>("protocol_combo")
-                .expect("Can't find protocol_combo in ui file.");
-
-            let protocol_model = self
-                .ui
-                .builder
-                .get_object::<gtk::ListStore>("protocol_model")
-                .expect("Can't find protocol_model in ui file.");
-
-            let active = protocol_combo.get_active().map_or(-1, |uint| uint as i32);
-
-            protocol_model
-                .iter_nth_child(None, active)
-                .and_then(|it| protocol_model.get_value(&it, 1).get().ok()?)
-        } else {
-            None
-        };
-
-        let q = self
-            .ui
-            .builder
-            .get_object::<gtk::Entry>("directory_search_entry")
-            .expect("Can't find directory_search_entry in ui file.");
-
-        let other_homeserver_radio = self
-            .ui
-            .builder
-            .get_object::<gtk::RadioButton>("other_homeserver_radio")
-            .expect("Can't find other_homeserver_radio in ui file.");
 
-        let other_homeserver_url = self
+        let (protocol, homeserver, search_term) = self
             .ui
-            .builder
-            .get_object::<gtk::EntryBuffer>("other_homeserver_url")
-            .expect("Can't find other_homeserver_url in ui file.");
-
-        let homeserver = if other_homeserver_radio.get_active() {
-            Some(other_homeserver_url.get_text())
-        } else {
-            None
-        };
-
-        if !self.directory_pagination.has_more() {
-            let directory = self
-                .ui
-                .builder
-                .get_object::<gtk::ListBox>("directory_room_list")
-                .expect("Can't find directory_room_list in ui file.");
-            for ch in directory.get_children() {
-                directory.remove(&ch);
-            }
-
-            let directory_stack = self
-                .ui
-                .builder
-                .get_object::<gtk::Stack>("directory_stack")
-                .expect("Can't find directory_stack in ui file.");
-            let directory_spinner = self
-                .ui
-                .builder
-                .get_object::<gtk::Box>("directory_spinner")
-                .expect("Can't find directory_spinner in ui file.");
-            directory_stack.set_visible_child(&directory_spinner);
-
-            self.directory.clear();
-
-            q.set_sensitive(false);
-        }
+            .get_search_rooms_query(self.directory_pagination.clone());
 
-        let search_term = Some(q.get_text().to_string()).filter(|s| !s.is_empty());
         if let RoomSearchPagination::NoMorePages = self.directory_pagination {
             // there are no more rooms. We don't need to request for more
             return;
@@ -148,7 +72,6 @@ impl AppOp {
         let session_client =
             unwrap_or_unit_return!(self.login_data.as_ref().map(|ld| ld.session_client.clone()));
         rooms.sort_by_key(|a| -i128::from(a.n_members));
-        self.directory.extend(rooms.clone());
         self.directory_pagination = rooms_since
             .map(RoomSearchPagination::Next)
             .unwrap_or(RoomSearchPagination::NoMorePages);
diff --git a/fractal-gtk/src/appop/mod.rs b/fractal-gtk/src/appop/mod.rs
index 4ddee2a8..77fe3739 100644
--- a/fractal-gtk/src/appop/mod.rs
+++ b/fractal-gtk/src/appop/mod.rs
@@ -13,7 +13,7 @@ use crate::cache::CacheMap;
 
 use crate::util::i18n;
 
-use crate::model::room::{Room, RoomList};
+use crate::model::room::RoomList;
 use crate::passwd::PasswordStorage;
 
 use crate::actions::AppState;
@@ -100,8 +100,6 @@ pub struct AppOp {
     pub md_enabled: bool,
     search_type: SearchType,
 
-    pub directory: Vec<Room>,
-
     pub user_info_cache: UserInfoCache,
 }
 
@@ -130,8 +128,6 @@ impl AppOp {
             invitation_roomid: None,
             search_type: SearchType::Invite,
 
-            directory: vec![],
-
             user_info_cache: Arc::new(Mutex::new(
                 CacheMap::new().timeout(Duration::from_secs(60 * 60)),
             )),
diff --git a/fractal-gtk/src/ui/directory.rs b/fractal-gtk/src/ui/directory.rs
index 21f2ef6b..977c4e16 100644
--- a/fractal-gtk/src/ui/directory.rs
+++ b/fractal-gtk/src/ui/directory.rs
@@ -1,5 +1,6 @@
 use super::UI;
 use crate::app::RUNTIME;
+use crate::appop::RoomSearchPagination;
 use crate::backend::room;
 use crate::backend::HandleError;
 use crate::model::room::Room;
@@ -29,6 +30,83 @@ impl UI {
         }
     }
 
+    pub fn get_search_rooms_query(
+        &self,
+        directory_pagination: RoomSearchPagination,
+    ) -> (Option<String>, Option<String>, Option<String>) {
+        let other_protocol_radio = self
+            .builder
+            .get_object::<gtk::RadioButton>("other_protocol_radio")
+            .expect("Can't find other_protocol_radio in ui file.");
+
+        let protocol: Option<String> = if other_protocol_radio.get_active() {
+            let protocol_combo = self
+                .builder
+                .get_object::<gtk::ComboBox>("protocol_combo")
+                .expect("Can't find protocol_combo in ui file.");
+
+            let protocol_model = self
+                .builder
+                .get_object::<gtk::ListStore>("protocol_model")
+                .expect("Can't find protocol_model in ui file.");
+
+            let active = protocol_combo.get_active().map_or(-1, |uint| uint as i32);
+
+            protocol_model
+                .iter_nth_child(None, active)
+                .and_then(|it| protocol_model.get_value(&it, 1).get().ok()?)
+        } else {
+            None
+        };
+
+        let other_homeserver_radio = self
+            .builder
+            .get_object::<gtk::RadioButton>("other_homeserver_radio")
+            .expect("Can't find other_homeserver_radio in ui file.");
+
+        let other_homeserver_url = self
+            .builder
+            .get_object::<gtk::EntryBuffer>("other_homeserver_url")
+            .expect("Can't find other_homeserver_url in ui file.");
+
+        let homeserver = if other_homeserver_radio.get_active() {
+            Some(other_homeserver_url.get_text())
+        } else {
+            None
+        };
+
+        let q = self
+            .builder
+            .get_object::<gtk::Entry>("directory_search_entry")
+            .expect("Can't find directory_search_entry in ui file.");
+
+        if !directory_pagination.has_more() {
+            let directory = self
+                .builder
+                .get_object::<gtk::ListBox>("directory_room_list")
+                .expect("Can't find directory_room_list in ui file.");
+            for ch in directory.get_children() {
+                directory.remove(&ch);
+            }
+
+            let directory_stack = self
+                .builder
+                .get_object::<gtk::Stack>("directory_stack")
+                .expect("Can't find directory_stack in ui file.");
+            let directory_spinner = self
+                .builder
+                .get_object::<gtk::Box>("directory_spinner")
+                .expect("Can't find directory_spinner in ui file.");
+            directory_stack.set_visible_child(&directory_spinner);
+
+            q.set_sensitive(false);
+        }
+
+        let search_term = Some(q.get_text().to_string()).filter(|s| !s.is_empty());
+
+        (protocol, homeserver, search_term)
+    }
+
     pub fn append_directory_rooms(&mut self, rooms: Vec<Room>, session_client: MatrixClient) {
         let directory = self
             .builder