Public Access
twislaandClaude Opus 5.5
7ab8f043d0
lib/files: path parts; names checked for rename and new folder; why something can't be renamed, moved or deleted (the Gemini cache, a file being written or a folder holding one, the firmware's top-level folders), and why it can't go into a folder; the viewer for a file by its name, with a sniff for text. FileList keeps a folder's entries packed, 256 at most, the first 256 by name whatever order the card lists them in, and sorts by name, date or size with folders first. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <string>
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#include <vector>
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namespace roro::files {
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enum class FileSort : uint8_t { Name, Date, Size };
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// A folder's entries for the Storage App (F1, Q129, Q136): 256 at most, the names packed into
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// one buffer, about 10 KB when full. A bigger folder keeps the first 256 by name, whatever order
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// the card lists them in, and counts the rest.
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class FileList {
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public:
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static constexpr size_t kMax = 256;
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void clear();
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void add(const char* name, uint32_t size, uint32_t modified, bool folder);
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void sort(FileSort by); // folders first, by name; then files by name, newest or biggest first
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size_t count() const { return entries_.size(); }
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size_t more() const { return more_; } // entries that didn't fit
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// By position after sort().
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const char* name(size_t i) const { return names_.data() + entries_[order_[i]].name; }
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uint32_t size(size_t i) const { return entries_[order_[i]].size; }
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uint32_t modified(size_t i) const { return entries_[order_[i]].modified; } // Unix time, 0 if unknown
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bool folder(size_t i) const { return entries_[order_[i]].folder; }
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int find(const std::string& name) const; // position, or -1
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size_t bytes() const; // memory held
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private:
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struct Entry {
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uint32_t name; // offset into names_
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uint32_t size, modified;
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bool folder;
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};
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bool before(const Entry& a, const Entry& b, FileSort by) const;
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void compact();
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std::vector<Entry> entries_;
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std::vector<uint16_t> order_;
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std::vector<char> names_;
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size_t more_ = 0, wasted_ = 0;
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};
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// What a row shows on the right (Q129): "folder", or "1.2 KB 2026-10-05". A file dated before
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// 2020 was written before the clock was set: "-" (Q137). Local time.
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std::string rowDetail(bool folder, uint32_t size, uint32_t modified);
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std::string formatStamp(uint32_t modified); // "2026-10-05 20:00", or "-"
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} // namespace roro::files
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