Public Access
twislaandClaude Opus 5.5
7fe8b3d22a
Fn+h on any screen, text fields included, and ? outside Text Entry, open a panel over the content area: the screen's own keys, then the ones that work everywhere. Every App declares its keys for the state it is in (pages, viewers, dialogs and text fields answer for themselves); the App manager opens the panel and takes every key while it is open. About 30 hint lines are gone, from every App. What stays on a screen is state. The first-start Setup keeps its hints and teaches the key; a device set up before gets one Toast, once. The guide and the FAQ open with it. `key help` over the consoles. 476 host tests (8 new). Checked on the device with key help and screenshots: the Launcher, all nine Apps and several of their states. 8.5 KB of flash and 40 bytes of static RAM. Decisions Q196 to Q203 in docs/milestones/U1.md. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
#pragma once
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#include <cstdint>
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#include <vector>
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#include "key_event.h"
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#include "key_help.h"
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namespace roro {
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class Canvas; // provided by the widget kit
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// A foreground, user-facing program (see CONTEXT.md). Exactly one App is on screen at a time.
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class App {
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public:
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virtual ~App() = default;
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virtual void onEnter() {}
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virtual void onExit() {}
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// Return true if the key was consumed. An unconsumed Back leaves the App.
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virtual bool onKey(const KeyEvent& event) {
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(void)event;
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return false;
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}
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// True while the App is editing text: the arrow keys then type ; . , / and need Fn to move.
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virtual bool textEntryActive() const { return false; }
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// The keys that work right now, for the help panel (Fn+h): the App's own, in the state it's
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// in. Back, Home and the arrows are added for it. No screen names keys any other way.
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virtual void help(std::vector<KeyHelp>& out) const { (void)out; }
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// What the panel is titled with, when the App's name isn't enough ("Notes: editor").
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virtual const char* helpTitle() const { return nullptr; }
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// Called every main-loop pass while in the foreground (e.g. to refresh live values).
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virtual void update(uint32_t nowMs) { (void)nowMs; }
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virtual void draw(Canvas& canvas) = 0;
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void requestRedraw() { redraw_ = true; }
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bool consumeRedraw() {
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bool r = redraw_;
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redraw_ = false;
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return r;
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}
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private:
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bool redraw_ = false;
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};
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} // namespace roro
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