snark13/Xteink-X4-crosspoint-reader
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Refactor to use CrossPointState

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This commit is contained in:
Will Morrow 2026-01-12 19:39:23 -05:00
parent 396365c709
commit 0725e81500
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4 changed files with 17 additions and 3 deletions
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10
src/CrossPointState.cpp
View File

@ -5,7 +5,7 @@
#include <Serialization.h>
namespace {
constexpr uint8_t STATE_FILE_VERSION = 1;
constexpr uint8_t STATE_FILE_VERSION = 2;
constexpr char STATE_FILE[] = "/.crosspoint/state.bin";
} // namespace
@ -19,6 +19,7 @@ bool CrossPointState::saveToFile() const {
serialization::writePod(outputFile, STATE_FILE_VERSION);
serialization::writeString(outputFile, openEpubPath);
serialization::writePod(outputFile, lastSleepImage);
outputFile.close();
return true;
}
@ -31,13 +32,18 @@ bool CrossPointState::loadFromFile() {
uint8_t version;
serialization::readPod(inputFile, version);
if (version != STATE_FILE_VERSION) {
if (version > STATE_FILE_VERSION) {
Serial.printf("[%lu] [CPS] Deserialization failed: Unknown version %u\n", millis(), version);
inputFile.close();
return false;
}
serialization::readString(inputFile, openEpubPath);
if (version >= 2) {
serialization::readPod(inputFile, lastSleepImage);
} else {
lastSleepImage = 0;
}
inputFile.close();
return true;

1
src/CrossPointState.h
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@ -8,6 +8,7 @@ class CrossPointState {
public:
std::string openEpubPath;
uint8_t lastSleepImage;
~CrossPointState() = default;
// Get singleton instance

8
src/activities/boot_sleep/SleepActivity.cpp
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@ -80,7 +80,13 @@ void SleepActivity::renderCustomSleepScreen() const {
const auto numFiles = files.size();
if (numFiles > 0) {
// Generate a random number between 1 and numFiles
const auto randomFileIndex = random(numFiles);
auto randomFileIndex = random(numFiles);
// If we picked the same image as last time, reroll
while (numFiles > 1 && randomFileIndex == APP_STATE.lastSleepImage) {
randomFileIndex = random(numFiles);
}
APP_STATE.lastSleepImage = randomFileIndex;
APP_STATE.saveToFile();
const auto filename = "/sleep/" + files[randomFileIndex];
FsFile file;
if (SdMan.openFileForRead("SLP", filename, file)) {

1
src/main.cpp
View File

@ -303,6 +303,7 @@ void setup() {
// Clear app state to avoid getting into a boot loop if the epub doesn't load
const auto path = APP_STATE.openEpubPath;
APP_STATE.openEpubPath = "";
APP_STATE.lastSleepImage = 0;
APP_STATE.saveToFile();
onGoToReader(path);
}