feat(ui,store): live today clock, rail as lane filter, b toggle, quick look on space

src/ui/keyboard.ts

@@ -67,6 +67,14 @@ function stepTray(view: ViewContext, direction: Direction): void {
   if (direction === "up") store.toggleUndated();
 }
 
+/**
+ * Runs one action as if its key had been pressed, so a button drawn anywhere
+ * does exactly what the sheet says the key does.
+ */
+export function perform(view: ViewContext, action: Action): Promise<void> {
+  return run(view, action);
+}
+
 async function run(view: ViewContext, action: Action): Promise<void> {
   const { app, store } = view;
   const task = store.taskById(store.cursorTask);
@@ -100,7 +108,10 @@ async function run(view: ViewContext, action: Action): Promise<void> {
       else store.cursorTask = null;
       return;
     case "taskOpen":
-      if (task) await revealInFile(view, task);
+      if (task) {
+        store.peeking = false;
+        await revealInFile(view, task);
+      }
       return;
     case "taskToggle":
       if (task) await setStatus(app, task, isOpen(task.status) ? "x" : " ");
@@ -109,11 +120,17 @@ async function run(view: ViewContext, action: Action): Promise<void> {
       if (task) store.edit(task.id);
       return;
     case "taskEditRaw":
-      if (task) await editInTasks(view, task);
+      if (task) {
+        store.peeking = false;
+        await editInTasks(view, task);
+      }
       return;
     case "taskPriority":
       if (task) store.request = "priority";
       return;
+    case "taskPeek":
+      store.peek();
+      return;
     case "taskBack":
       if (task) await shift(view, task, -1);
       return;
@@ -161,6 +178,12 @@ async function run(view: ViewContext, action: Action): Promise<void> {
     case "railChoose":
       store.chooseRail();
       return;
+    case "railToggleRow":
+      store.toggleRailRow();
+      return;
+    case "railLeave":
+      store.leaveRail();
+      return;
 
     case "create":
       openComposer(view);
@@ -258,6 +281,15 @@ export function handleKey(view: ViewContext, event: KeyboardEvent): void {
     return;
   }
 
+  // The quick look is a lens, not a layer: every key still reaches the task
+  // underneath, and only Escape is taken to put the lens away.
+  if (store.peeking && event.key === "Escape") {
+    event.preventDefault();
+    event.stopPropagation();
+    store.peeking = false;
+    return;
+  }
+
   const action = resolve(event, scopesFor(view));
   if (!action) return;
   event.preventDefault();