b77af16caa
## Summary * **What is the goal of this PR?** Add a "Continue Reading" feature to improve user experience when returning to a previously opened book. * **What changes are included?** - Add dynamic "Continue: <book name>" menu item in Home screen when a book was previously opened - File browser now starts from the folder of the last opened book instead of always starting from root directory - Menu dynamically shows 3 or 4 items based on reading history: - Without history: `Browse`, `File transfer`, `Settings` - With history: `Continue: <book>`, `Browse`, `File transfer`, `Settings` ## Additional Context * This feature leverages the existing `APP_STATE.openEpubPath` which already persists the last opened book path * The Continue Reading menu only appears if the book file still exists on the SD card * Book name in the menu is truncated to 25 characters with "..." suffix if too long * If the last book's folder was deleted, the file browser gracefully falls back to root directory * No new dependencies or significant memory overhead - reuses existing state management
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
#pragma once
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#include <freertos/FreeRTOS.h>
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#include <freertos/semphr.h>
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#include <freertos/task.h>
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#include <functional>
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#include <string>
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#include <vector>
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#include "../Activity.h"
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class FileSelectionActivity final : public Activity {
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TaskHandle_t displayTaskHandle = nullptr;
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SemaphoreHandle_t renderingMutex = nullptr;
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std::string basepath = "/";
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std::vector<std::string> files;
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int selectorIndex = 0;
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bool updateRequired = false;
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const std::function<void(const std::string&)> onSelect;
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const std::function<void()> onGoHome;
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static void taskTrampoline(void* param);
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[[noreturn]] void displayTaskLoop();
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void render() const;
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void loadFiles();
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public:
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explicit FileSelectionActivity(GfxRenderer& renderer, InputManager& inputManager,
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const std::function<void(const std::string&)>& onSelect,
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const std::function<void()>& onGoHome, std::string initialPath = "/")
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: Activity("FileSelection", renderer, inputManager),
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basepath(initialPath.empty() ? "/" : std::move(initialPath)),
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onSelect(onSelect),
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onGoHome(onGoHome) {}
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void onEnter() override;
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void onExit() override;
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void loop() override;
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};
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