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Show previous title for unnamed spines (#158)

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## Summary

* Show previous title for unnamed spines
* The spec is a little unclear, but there are plenty of cases where
chapters are split up in parts and should show the previous chapter's
title
* List TOC items instead of spine items in chapter select
* Bump `BOOK_CACHE_VERSION` to `2` to force regeneration of spine item's
TOC indexes
This commit is contained in:
Dave Allie
2025-12-30 17:52:42 +10:00
committed by GitHub
parent fb5fc32c5d
commit 9f31f80c80
2 changed files with 26 additions and 18 deletions
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34
src/activities/reader/EpubReaderChapterSelectionActivity.cpp
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@@ -39,7 +39,10 @@ void EpubReaderChapterSelectionActivity::onEnter() {
}
renderingMutex = xSemaphoreCreateMutex();
selectorIndex = currentSpineIndex;
selectorIndex = epub->getTocIndexForSpineIndex(currentSpineIndex);
if (selectorIndex == -1) {
selectorIndex = 0;
}
// Trigger first update
updateRequired = true;
@@ -74,22 +77,27 @@ void EpubReaderChapterSelectionActivity::loop() {
const int pageItems = getPageItems();
if (mappedInput.wasReleased(MappedInputManager::Button::Confirm)) {
onSelectSpineIndex(selectorIndex);
const auto newSpineIndex = epub->getSpineIndexForTocIndex(selectorIndex);
if (newSpineIndex == -1) {
onGoBack();
} else {
onSelectSpineIndex(newSpineIndex);
}
} else if (mappedInput.wasReleased(MappedInputManager::Button::Back)) {
onGoBack();
} else if (prevReleased) {
if (skipPage) {
selectorIndex =
((selectorIndex / pageItems - 1) * pageItems + epub->getSpineItemsCount()) % epub->getSpineItemsCount();
((selectorIndex / pageItems - 1) * pageItems + epub->getTocItemsCount()) % epub->getTocItemsCount();
} else {
selectorIndex = (selectorIndex + epub->getSpineItemsCount() - 1) % epub->getSpineItemsCount();
selectorIndex = (selectorIndex + epub->getTocItemsCount() - 1) % epub->getTocItemsCount();
}
updateRequired = true;
} else if (nextReleased) {
if (skipPage) {
selectorIndex = ((selectorIndex / pageItems + 1) * pageItems) % epub->getSpineItemsCount();
selectorIndex = ((selectorIndex / pageItems + 1) * pageItems) % epub->getTocItemsCount();
} else {
selectorIndex = (selectorIndex + 1) % epub->getSpineItemsCount();
selectorIndex = (selectorIndex + 1) % epub->getTocItemsCount();
}
updateRequired = true;
}
@@ -116,15 +124,11 @@ void EpubReaderChapterSelectionActivity::renderScreen() {
const auto pageStartIndex = selectorIndex / pageItems * pageItems;
renderer.fillRect(0, 60 + (selectorIndex % pageItems) * 30 - 2, pageWidth - 1, 30);
for (int i = pageStartIndex; i < epub->getSpineItemsCount() && i < pageStartIndex + pageItems; i++) {
const int tocIndex = epub->getTocIndexForSpineIndex(i);
if (tocIndex == -1) {
renderer.drawText(UI_FONT_ID, 20, 60 + (i % pageItems) * 30, "Unnamed", i != selectorIndex);
} else {
auto item = epub->getTocItem(tocIndex);
renderer.drawText(UI_FONT_ID, 20 + (item.level - 1) * 15, 60 + (i % pageItems) * 30, item.title.c_str(),
i != selectorIndex);
}
for (int tocIndex = pageStartIndex; tocIndex < epub->getTocItemsCount() && tocIndex < pageStartIndex + pageItems;
tocIndex++) {
auto item = epub->getTocItem(tocIndex);
renderer.drawText(UI_FONT_ID, 20 + (item.level - 1) * 15, 60 + (tocIndex % pageItems) * 30, item.title.c_str(),
tocIndex != selectorIndex);
}
renderer.displayBuffer();