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roro9stack/lib/core/src/app_manager.h
twislaandClaude Opus 5.5 7fe8b3d22a
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Help: Fn+h lists the keys of the screen you're on, and no screen names its keys any more (#69)
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
2026-10-07 01:29:51 +02:00

59 lines
1.6 KiB
C++

#pragma once
#include <vector>
#include "app.h"
namespace roro {
struct AppInfo {
const char* id;
const char* title;
bool hidden; // not listed in the Launcher, but can still be opened
App* app;
};
// Owns which App is in the foreground and routes keys. Home always returns to the Launcher;
// Back is offered to the App first and returns to the Launcher if the App doesn't consume it.
class AppManager {
public:
explicit AppManager(App& launcher);
void registerApp(const AppInfo& info);
std::vector<const AppInfo*> visibleApps() const;
void begin();
bool open(const char* id); // refused while a modal App runs
void home();
// A modal App (e.g. the first-boot wizard) can't be left with Home or Back: those keys go to it,
// and it ends itself with endModal(), which returns to the Launcher.
bool openModal(const char* id);
void endModal();
void handleKey(const KeyEvent& event);
void update(uint32_t nowMs) { foreground_->update(nowMs); }
App& foreground() const { return *foreground_; }
const char* foregroundTitle() const; // nullptr for the Launcher
// The help panel (Fn+h): open, it takes every key, and the App sees none of them.
const HelpModel& help() const { return help_; }
// True once after the screen needs redrawing (App switch, or the App asked for it).
bool takeRedraw();
private:
void switchTo(App& app);
App* find(const char* id) const;
App& launcher_;
App* foreground_;
std::vector<AppInfo> apps_;
HelpModel help_;
bool redraw_ = true;
bool modal_ = false;
};
} // namespace roro