From: Simon Tatham <anakin@pobox.com>
Date: Mon, 1 Jan 2024 09:18:23 +0000 (+0000)
Subject: Ability to abort a bottom-line prompt.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=997996bebcf5783e51726e02fddb89dbf2ce0a98;p=mastodonochrome.git

Ability to abort a bottom-line prompt.

The new PopOverlay logical action returns to the previous non-overlay
activity, without reinitialising it.
---

diff --git a/src/activity_stack.rs b/src/activity_stack.rs
index fd22dcd..0d9b724 100644
--- a/src/activity_stack.rs
+++ b/src/activity_stack.rs
@@ -81,6 +81,10 @@ impl ActivityStack {
         }
     }
 
+    pub fn pop_overlay(&mut self) {
+        self.overlay = None;
+    }
+
     pub fn new_event(&mut self) {
         // Save the utility activity we were in at the start of an
         // event. That way we can restore it when moving to an
diff --git a/src/editor.rs b/src/editor.rs
index 5d3c5e6..fbb7ae5 100644
--- a/src/editor.rs
+++ b/src/editor.rs
@@ -577,7 +577,13 @@ impl ActivityState for BottomLineEditorOverlay {
 pub fn get_user_to_examine() -> Box<dyn ActivityState> {
     Box::new(BottomLineEditorOverlay::new(
         ColouredString::plain("Examine User: "),
-        Box::new(move |s| LogicalAction::Goto(
-            UtilityActivity::ExamineUser(s.to_owned()).into()))
+        Box::new(move |s| {
+            if s.is_empty() {
+                LogicalAction::PopOverlaySilent
+            } else {
+                LogicalAction::Goto(
+                    UtilityActivity::ExamineUser(s.to_owned()).into())
+            }
+        })
     ))
 }
diff --git a/src/tui.rs b/src/tui.rs
index b69e5ba..eae9a5c 100644
--- a/src/tui.rs
+++ b/src/tui.rs
@@ -391,6 +391,8 @@ pub enum CursorPosition {
 pub enum LogicalAction {
     Beep,
     Pop,
+    PopOverlaySilent,
+    PopOverlayBeep,
     Goto(Activity),
     Exit,
     Nothing,
@@ -556,6 +558,14 @@ impl TuiLogicalState {
                 self.changed_activity(client);
                 PhysicalAction::Nothing
             },
+            LogicalAction::PopOverlaySilent => {
+                self.pop_overlay_activity();
+                PhysicalAction::Nothing
+            },
+            LogicalAction::PopOverlayBeep => {
+                self.pop_overlay_activity();
+                PhysicalAction::Beep
+            },
             LogicalAction::Error(_) => PhysicalAction::Beep, // FIXME: Error Log
         }
     }
@@ -592,4 +602,9 @@ impl TuiLogicalState {
             }
         }
     }
+
+    fn pop_overlay_activity(&mut self) {
+        self.activity_stack.pop_overlay();
+        self.overlay_activity_state = None;
+    }
 }