[fractal/split-appop-ui: 6/7] Move stuff in media_viewer from AppOp to UI

[Alejandro Domínguez <aledomu src gnome org>]

commit a4737a6f444974834da8fed9c75ec8074b7d3a71
Author: Alejandro Domínguez <adomu net-c com>
Date:   Sat Jan 2 17:57:55 2021 +0100

    Move stuff in media_viewer from AppOp to UI

 fractal-gtk/po/POTFILES.in            |  1 +
 fractal-gtk/src/app/mod.rs            | 11 +++-----
 fractal-gtk/src/appop/media_viewer.rs | 52 ++++++++---------------------------
 fractal-gtk/src/meson.build           |  1 +
 fractal-gtk/src/ui/media_viewer.rs    | 39 ++++++++++++++++++++++++++
 fractal-gtk/src/ui/mod.rs             |  7 +++++
 fractal-gtk/src/ui/room_settings.rs   | 10 ++-----
 fractal-gtk/src/ui/state.rs           |  6 +---
 8 files changed, 68 insertions(+), 59 deletions(-)
---
diff --git a/fractal-gtk/po/POTFILES.in b/fractal-gtk/po/POTFILES.in
index 1779f6b9..51180f15 100644
--- a/fractal-gtk/po/POTFILES.in
+++ b/fractal-gtk/po/POTFILES.in
@@ -107,6 +107,7 @@ fractal-gtk/src/ui/connect/send.rs
 fractal-gtk/src/ui/connect/swipeable_widgets.rs
 fractal-gtk/src/ui/directory.rs
 fractal-gtk/src/ui/invite.rs
+fractal-gtk/src/ui/media_viewer.rs
 fractal-gtk/src/ui/member.rs
 fractal-gtk/src/ui/mod.rs
 fractal-gtk/src/ui/notify.rs
diff --git a/fractal-gtk/src/app/mod.rs b/fractal-gtk/src/app/mod.rs
index 2b8469ae..352c9f76 100644
--- a/fractal-gtk/src/app/mod.rs
+++ b/fractal-gtk/src/app/mod.rs
@@ -139,14 +139,11 @@ fn new(gtk_app: gtk::Application) -> AppRuntime {
             }
         }));
 
-        let view_stack = state
-            .ui
-            .builder
-            .get_object::<gtk::Stack>("subview_stack")
-            .expect("Can't find subview_stack in ui file.");
-
         // Add account settings view to the view stack
-        view_stack.add_named(&state.ui.account_settings.root, "account-settings");
+        state
+            .ui
+            .subview_stack
+            .add_named(&state.ui.account_settings.root, "account-settings");
 
         let main_stack = state
             .ui
diff --git a/fractal-gtk/src/appop/media_viewer.rs b/fractal-gtk/src/appop/media_viewer.rs
index 1e8df794..84943894 100644
--- a/fractal-gtk/src/appop/media_viewer.rs
+++ b/fractal-gtk/src/appop/media_viewer.rs
@@ -1,51 +1,23 @@
-use gtk::prelude::*;
-
-use crate::actions;
-
 use crate::appop::AppOp;
 use crate::appop::AppState;
-
-use crate::widgets;
-
 use crate::model::message::Message;
 
 impl AppOp {
-    /* FIXME: take msg by reference and maybe create an action for this */
+    // FIXME: take msg by reference and maybe create an action for this
     pub fn create_media_viewer(&mut self, msg: Message) -> Option<()> {
-        let login_data = self.login_data.clone()?;
-        let stack = self
-            .ui
-            .builder
-            .get_object::<gtk::Stack>("subview_stack")
-            .expect("Can't find subview_stack in ui file.");
-
-        {
-            let room_id = self.active_room.as_ref()?;
-            let room = self.rooms.get(room_id)?;
-            let mut panel = widgets::MediaViewer::new(
-                self.ui.main_window.clone().upcast(),
-                room,
-                &msg,
-                login_data.uid,
-            );
-            panel.display_media_viewer(login_data.session_client.clone(), msg);
-            let (body, header) = panel.create(login_data.session_client.clone())?;
-            self.ui.media_viewer = Some(panel);
-
-            let actions = actions::Message::new(self.app_runtime.clone());
-            header.insert_action_group("message", Some(&actions));
-            body.insert_action_group("message", Some(&actions));
-
-            /* remove old panel */
-            if let Some(widget) = stack.get_child_by_name("media-viewer") {
-                stack.remove(&widget);
-            }
-
-            stack.add_named(&body, "media-viewer");
-        }
+        let login_data = self.login_data.as_ref()?;
+        let active_room = self.active_room.as_ref()?;
+        let room = self.rooms.get(active_room)?;
+
+        self.ui.create_media_viewer(
+            self.app_runtime.clone(),
+            login_data.session_client.clone(),
+            room,
+            login_data.uid.clone(),
+            msg,
+        )?;
 
         self.set_state(AppState::MediaViewer);
-
         None
     }
 }
diff --git a/fractal-gtk/src/meson.build b/fractal-gtk/src/meson.build
index 5b36427b..36cc8fc8 100644
--- a/fractal-gtk/src/meson.build
+++ b/fractal-gtk/src/meson.build
@@ -102,6 +102,7 @@ app_sources = files(
   'ui/attach.rs',
   'ui/directory.rs',
   'ui/invite.rs',
+  'ui/media_viewer.rs',
   'ui/member.rs',
   'ui/mod.rs',
   'ui/notify.rs',
diff --git a/fractal-gtk/src/ui/media_viewer.rs b/fractal-gtk/src/ui/media_viewer.rs
new file mode 100644
index 00000000..263a67db
--- /dev/null
+++ b/fractal-gtk/src/ui/media_viewer.rs
@@ -0,0 +1,39 @@
+use super::UI;
+use crate::actions;
+use crate::app::AppRuntime;
+use crate::model::message::Message;
+use crate::model::room::Room;
+use crate::widgets;
+use gtk::prelude::*;
+use matrix_sdk::{identifiers::UserId, Client as MatrixClient};
+
+impl UI {
+    // FIXME: take msg by reference and maybe create an action for this
+    pub fn create_media_viewer(
+        &mut self,
+        app_runtime: AppRuntime,
+        session_client: MatrixClient,
+        room: &Room,
+        user_id: UserId,
+        msg: Message,
+    ) -> Option<()> {
+        let mut panel =
+            widgets::MediaViewer::new(self.main_window.clone().upcast(), room, &msg, user_id);
+        panel.display_media_viewer(session_client.clone(), msg);
+        let (body, header) = panel.create(session_client)?;
+        self.media_viewer = Some(panel);
+
+        let actions = actions::Message::new(app_runtime);
+        header.insert_action_group("message", Some(&actions));
+        body.insert_action_group("message", Some(&actions));
+
+        // remove old panel
+        if let Some(widget) = self.subview_stack.get_child_by_name("media-viewer") {
+            self.subview_stack.remove(&widget);
+        }
+
+        self.subview_stack.add_named(&body, "media-viewer");
+
+        Some(())
+    }
+}
diff --git a/fractal-gtk/src/ui/mod.rs b/fractal-gtk/src/ui/mod.rs
index 04d464e0..ae34796f 100644
--- a/fractal-gtk/src/ui/mod.rs
+++ b/fractal-gtk/src/ui/mod.rs
@@ -14,6 +14,7 @@ pub mod attach;
 pub mod connect;
 pub mod directory;
 pub mod invite;
+pub mod media_viewer;
 pub mod member;
 pub mod notify;
 pub mod room_settings;
@@ -27,6 +28,7 @@ pub struct UI {
     pub main_window: libhandy::ApplicationWindow,
     pub sventry: SVEntry,
     pub sventry_box: Box<gtk::Stack>,
+    pub subview_stack: gtk::Stack,
     pub room_settings: Option<room_settings::RoomSettings>,
     pub history: Option<widgets::RoomHistory>,
     pub roomlist: widgets::RoomList,
@@ -88,6 +90,10 @@ impl UI {
         let parent: gtk::Box = builder.get_object("room_parent").unwrap();
         parent.add(&sventry_stack);
 
+        let subview_stack = builder
+            .get_object("subview_stack")
+            .expect("Can't find subview_stack in ui file.");
+
         // Depends on main_window
         // These are all dialogs transient for main_window
         builder
@@ -131,6 +137,7 @@ impl UI {
             main_window,
             sventry,
             sventry_box,
+            subview_stack,
             room_settings: None,
             history: None,
             roomlist: widgets::RoomList::new(None, None),
diff --git a/fractal-gtk/src/ui/room_settings.rs b/fractal-gtk/src/ui/room_settings.rs
index 81ae93e2..0df1dab5 100644
--- a/fractal-gtk/src/ui/room_settings.rs
+++ b/fractal-gtk/src/ui/room_settings.rs
@@ -33,16 +33,12 @@ impl UI {
         let mut panel = RoomSettings::new(session_client.clone(), &window, user_id, room);
         let page = panel.create(session_client);
 
-        let stack = self
-            .builder
-            .get_object::<gtk::Stack>("subview_stack")
-            .expect("Can't find subview_stack in ui file.");
         // remove old panel
-        if let Some(widget) = stack.get_child_by_name("room-settings") {
-            stack.remove(&widget);
+        if let Some(widget) = self.subview_stack.get_child_by_name("room-settings") {
+            self.subview_stack.remove(&widget);
         }
 
-        stack.add_named(&page, "room-settings");
+        self.subview_stack.add_named(&page, "room-settings");
 
         self.room_settings = Some(panel);
     }
diff --git a/fractal-gtk/src/ui/state.rs b/fractal-gtk/src/ui/state.rs
index a03da58b..05c83dc7 100644
--- a/fractal-gtk/src/ui/state.rs
+++ b/fractal-gtk/src/ui/state.rs
@@ -10,10 +10,6 @@ impl UI {
             .builder
             .get_object::<libhandy::Deck>("main_deck")
             .expect("Could not find main_deck in ui file");
-        let stack = self
-            .builder
-            .get_object::<gtk::Stack>("subview_stack")
-            .expect("Could not find subview_stack in ui file");
         let app = gio::Application::get_default().unwrap();
 
         let global_back = app.lookup_action("back");
@@ -24,7 +20,7 @@ impl UI {
         };
 
         if let Some(v) = view {
-            stack.set_visible_child_name(v);
+            self.subview_stack.set_visible_child_name(v);
         }
 
         if deck.get_adjacent_child(direction).is_some() {