Local overrides for css and img display

src/JsonSettingsIO.cpp

@@ -302,6 +302,8 @@ bool JsonSettingsIO::saveRecentBooks(const RecentBooksStore& store, const char*
     obj["title"] = book.title;
     obj["author"] = book.author;
     obj["coverBmpPath"] = book.coverBmpPath;
+    obj["embeddedStyleOverride"] = book.embeddedStyleOverride;
+    obj["imageRenderingOverride"] = book.imageRenderingOverride;
   }
 
   String json;
@@ -319,6 +321,13 @@ bool JsonSettingsIO::loadRecentBooks(RecentBooksStore& store, const char* json)
 
   store.recentBooks.clear();
   JsonArray arr = doc["books"].as<JsonArray>();
+  auto clampInt8 = [](int value, int minValue, int maxValue, int8_t fallback) -> int8_t {
+    if (value < minValue || value > maxValue) {
+      return fallback;
+    }
+    return static_cast<int8_t>(value);
+  };
+
   for (JsonObject obj : arr) {
     if (store.getCount() >= 10) break;
     RecentBook book;
@@ -326,6 +335,8 @@ bool JsonSettingsIO::loadRecentBooks(RecentBooksStore& store, const char* json)
     book.title = obj["title"] | std::string("");
     book.author = obj["author"] | std::string("");
     book.coverBmpPath = obj["coverBmpPath"] | std::string("");
+    book.embeddedStyleOverride = clampInt8(obj["embeddedStyleOverride"] | -1, -1, 1, -1);
+    book.imageRenderingOverride = clampInt8(obj["imageRenderingOverride"] | -1, -1, 2, -1);
     store.recentBooks.push_back(book);
   }
 

src/RecentBooksStore.cpp

@@ -22,15 +22,21 @@ RecentBooksStore RecentBooksStore::instance;
 
 void RecentBooksStore::addBook(const std::string& path, const std::string& title, const std::string& author,
                                const std::string& coverBmpPath) {
+  int8_t embeddedStyleOverride = -1;
+  int8_t imageRenderingOverride = -1;
+
   // Remove existing entry if present
   auto it =
       std::find_if(recentBooks.begin(), recentBooks.end(), [&](const RecentBook& book) { return book.path == path; });
   if (it != recentBooks.end()) {
+    embeddedStyleOverride = it->embeddedStyleOverride;
+    imageRenderingOverride = it->imageRenderingOverride;
     recentBooks.erase(it);
   }
 
   // Add to front
-  recentBooks.insert(recentBooks.begin(), {path, title, author, coverBmpPath});
+  recentBooks.insert(recentBooks.begin(),
+                     {path, title, author, coverBmpPath, embeddedStyleOverride, imageRenderingOverride});
 
   // Trim to max size
   if (recentBooks.size() > MAX_RECENT_BOOKS) {
@@ -53,6 +59,28 @@ void RecentBooksStore::updateBook(const std::string& path, const std::string& ti
   }
 }
 
+RecentBook RecentBooksStore::getBookByPath(const std::string& path) const {
+  auto it =
+      std::find_if(recentBooks.begin(), recentBooks.end(), [&](const RecentBook& book) { return book.path == path; });
+  if (it != recentBooks.end()) {
+    return *it;
+  }
+  return RecentBook{};
+}
+
+bool RecentBooksStore::setReaderOverrides(const std::string& path, const int8_t embeddedStyleOverride,
+                                          const int8_t imageRenderingOverride) {
+  auto it =
+      std::find_if(recentBooks.begin(), recentBooks.end(), [&](const RecentBook& book) { return book.path == path; });
+  if (it == recentBooks.end()) {
+    return false;
+  }
+
+  it->embeddedStyleOverride = embeddedStyleOverride;
+  it->imageRenderingOverride = imageRenderingOverride;
+  return saveToFile();
+}
+
 bool RecentBooksStore::saveToFile() const {
   Storage.mkdir("/.crosspoint");
   return JsonSettingsIO::saveRecentBooks(*this, RECENT_BOOKS_FILE_JSON);

src/RecentBooksStore.h

@@ -1,12 +1,18 @@
 #pragma once
+#include <cstdint>
 #include <string>
 #include <vector>
 
+
 struct RecentBook {
   std::string path;
   std::string title;
   std::string author;
   std::string coverBmpPath;
+  // -1 = use global setting, otherwise explicit per-book override.
+  int8_t embeddedStyleOverride = -1;
+  // -1 = use global setting, otherwise CrossPointSettings::IMAGE_RENDERING value.
+  int8_t imageRenderingOverride = -1;
 
   bool operator==(const RecentBook& other) const { return path == other.path; }
 };
@@ -47,6 +53,8 @@ class RecentBooksStore {
 
   bool loadFromFile();
   RecentBook getDataFromBook(std::string path) const;
+  RecentBook getBookByPath(const std::string& path) const;
+  bool setReaderOverrides(const std::string& path, int8_t embeddedStyleOverride, int8_t imageRenderingOverride);
 
  private:
   bool loadFromBinaryFile();

src/activities/ActivityResult.h

@@ -21,6 +21,8 @@ struct MenuResult {
   int action = -1;
   uint8_t orientation = 0;
   uint8_t pageTurnOption = 0;
+  int8_t embeddedStyleOverride = -1;
+  int8_t imageRenderingOverride = -1;
 };
 
 struct ChapterResult {

src/activities/reader/EpubReaderActivity.cpp

@@ -85,6 +85,9 @@ void EpubReaderActivity::onEnter() {
   APP_STATE.openEpubPath = epub->getPath();
   APP_STATE.saveToFile();
   RECENT_BOOKS.addBook(epub->getPath(), epub->getTitle(), epub->getAuthor(), epub->getThumbBmpPath());
+  const RecentBook currentBook = RECENT_BOOKS.getBookByPath(epub->getPath());
+  bookEmbeddedStyleOverride = currentBook.embeddedStyleOverride;
+  bookImageRenderingOverride = currentBook.imageRenderingOverride;
 
   // Trigger first update
   requestUpdate();
@@ -145,18 +148,20 @@ void EpubReaderActivity::loop() {
       bookProgress = epub->calculateProgress(currentSpineIndex, chapterProgress) * 100.0f;
     }
     const int bookProgressPercent = clampPercent(static_cast<int>(bookProgress + 0.5f));
-    startActivityForResult(std::make_unique<EpubReaderMenuActivity>(
+    startActivityForResult(
-                               renderer, mappedInput, epub->getTitle(), currentPage, totalPages, bookProgressPercent,
+        std::make_unique<EpubReaderMenuActivity>(
-                               SETTINGS.orientation, !currentPageFootnotes.empty()),
+            renderer, mappedInput, epub->getTitle(), currentPage, totalPages, bookProgressPercent, SETTINGS.orientation,
-                           [this](const ActivityResult& result) {
+            !currentPageFootnotes.empty(), bookEmbeddedStyleOverride, bookImageRenderingOverride),
-                             // Always apply orientation change even if the menu was cancelled
+        [this](const ActivityResult& result) {
-                             const auto& menu = std::get<MenuResult>(result.data);
+          // Always apply orientation change even if the menu was cancelled
-                             applyOrientation(menu.orientation);
+          const auto& menu = std::get<MenuResult>(result.data);
-                             toggleAutoPageTurn(menu.pageTurnOption);
+          applyOrientation(menu.orientation);
-                             if (!result.isCancelled) {
+          toggleAutoPageTurn(menu.pageTurnOption);
-                               onReaderMenuConfirm(static_cast<EpubReaderMenuActivity::MenuAction>(menu.action));
+          applyBookReaderOverrides(menu.embeddedStyleOverride, menu.imageRenderingOverride);
-                             }
+          if (!result.isCancelled) {
-                           });
+            onReaderMenuConfirm(static_cast<EpubReaderMenuActivity::MenuAction>(menu.action));
+          }
+        });
   }
 
   // Long press BACK (1s+) goes to file selection
@@ -456,6 +461,43 @@ void EpubReaderActivity::toggleAutoPageTurn(const uint8_t selectedPageTurnOption
   }
 }
 
+void EpubReaderActivity::applyBookReaderOverrides(const int8_t embeddedStyleOverride,
+                                                  const int8_t imageRenderingOverride) {
+  if (!epub) {
+    return;
+  }
+
+  if (bookEmbeddedStyleOverride == embeddedStyleOverride && bookImageRenderingOverride == imageRenderingOverride) {
+    return;
+  }
+
+  bookEmbeddedStyleOverride = embeddedStyleOverride;
+  bookImageRenderingOverride = imageRenderingOverride;
+  RECENT_BOOKS.setReaderOverrides(epub->getPath(), bookEmbeddedStyleOverride, bookImageRenderingOverride);
+
+  RenderLock lock(*this);
+  if (section) {
+    cachedSpineIndex = currentSpineIndex;
+    cachedChapterTotalPageCount = section->pageCount;
+    nextPageNumber = section->currentPage;
+  }
+  section.reset();
+}
+
+bool EpubReaderActivity::getEffectiveEmbeddedStyle() const {
+  if (bookEmbeddedStyleOverride >= 0) {
+    return bookEmbeddedStyleOverride != 0;
+  }
+  return SETTINGS.embeddedStyle != 0;
+}
+
+uint8_t EpubReaderActivity::getEffectiveImageRendering() const {
+  if (bookImageRenderingOverride >= 0) {
+    return static_cast<uint8_t>(bookImageRenderingOverride);
+  }
+  return SETTINGS.imageRendering;
+}
+
 void EpubReaderActivity::pageTurn(bool isForwardTurn) {
   if (isForwardTurn) {
     if (section->currentPage < section->pageCount - 1) {
@@ -534,22 +576,23 @@ void EpubReaderActivity::render(RenderLock&& lock) {
   const uint16_t viewportHeight = renderer.getScreenHeight() - orientedMarginTop - orientedMarginBottom;
 
   if (!section) {
+    const bool embeddedStyle = getEffectiveEmbeddedStyle();
+    const uint8_t imageRendering = getEffectiveImageRendering();
     const auto filepath = epub->getSpineItem(currentSpineIndex).href;
     LOG_DBG("ERS", "Loading file: %s, index: %d", filepath.c_str(), currentSpineIndex);
     section = std::unique_ptr<Section>(new Section(epub, currentSpineIndex, renderer));
 
     if (!section->loadSectionFile(SETTINGS.getReaderFontId(), SETTINGS.getReaderLineCompression(),
                                   SETTINGS.extraParagraphSpacing, SETTINGS.paragraphAlignment, viewportWidth,
-                                  viewportHeight, SETTINGS.hyphenationEnabled, SETTINGS.embeddedStyle,
+                                  viewportHeight, SETTINGS.hyphenationEnabled, embeddedStyle, imageRendering)) {
-                                  SETTINGS.imageRendering)) {
       LOG_DBG("ERS", "Cache not found, building...");
 
       const auto popupFn = [this]() { GUI.drawPopup(renderer, tr(STR_INDEXING)); };
 
       if (!section->createSectionFile(SETTINGS.getReaderFontId(), SETTINGS.getReaderLineCompression(),
                                       SETTINGS.extraParagraphSpacing, SETTINGS.paragraphAlignment, viewportWidth,
-                                      viewportHeight, SETTINGS.hyphenationEnabled, SETTINGS.embeddedStyle,
+                                      viewportHeight, SETTINGS.hyphenationEnabled, embeddedStyle, imageRendering,
-                                      SETTINGS.imageRendering, popupFn)) {
+                                      popupFn)) {
         LOG_ERR("ERS", "Failed to persist page data to SD");
         section.reset();
         return;
@@ -659,19 +702,20 @@ void EpubReaderActivity::silentIndexNextChapterIfNeeded(const uint16_t viewportW
     return;
   }
 
+  const bool embeddedStyle = getEffectiveEmbeddedStyle();
+  const uint8_t imageRendering = getEffectiveImageRendering();
+
   Section nextSection(epub, nextSpineIndex, renderer);
   if (nextSection.loadSectionFile(SETTINGS.getReaderFontId(), SETTINGS.getReaderLineCompression(),
                                   SETTINGS.extraParagraphSpacing, SETTINGS.paragraphAlignment, viewportWidth,
-                                  viewportHeight, SETTINGS.hyphenationEnabled, SETTINGS.embeddedStyle,
+                                  viewportHeight, SETTINGS.hyphenationEnabled, embeddedStyle, imageRendering)) {
-                                  SETTINGS.imageRendering)) {
     return;
   }
 
   LOG_DBG("ERS", "Silently indexing next chapter: %d", nextSpineIndex);
   if (!nextSection.createSectionFile(SETTINGS.getReaderFontId(), SETTINGS.getReaderLineCompression(),
                                      SETTINGS.extraParagraphSpacing, SETTINGS.paragraphAlignment, viewportWidth,
-                                     viewportHeight, SETTINGS.hyphenationEnabled, SETTINGS.embeddedStyle,
+                                     viewportHeight, SETTINGS.hyphenationEnabled, embeddedStyle, imageRendering)) {
-                                     SETTINGS.imageRendering)) {
     LOG_ERR("ERS", "Failed silent indexing for chapter: %d", nextSpineIndex);
   }
 }

src/activities/reader/EpubReaderActivity.h

@@ -27,6 +27,9 @@ class EpubReaderActivity final : public Activity {
   bool pendingScreenshot = false;
   bool skipNextButtonCheck = false;  // Skip button processing for one frame after subactivity exit
   bool automaticPageTurnActive = false;
+  // -1 means use global SETTINGS value.
+  int8_t bookEmbeddedStyleOverride = -1;
+  int8_t bookImageRenderingOverride = -1;
 
   // Footnote support
   std::vector<FootnoteEntry> currentPageFootnotes;
@@ -48,6 +51,9 @@ class EpubReaderActivity final : public Activity {
   void onReaderMenuConfirm(EpubReaderMenuActivity::MenuAction action);
   void applyOrientation(uint8_t orientation);
   void toggleAutoPageTurn(uint8_t selectedPageTurnOption);
+  void applyBookReaderOverrides(int8_t embeddedStyleOverride, int8_t imageRenderingOverride);
+  bool getEffectiveEmbeddedStyle() const;
+  uint8_t getEffectiveImageRendering() const;
   void pageTurn(bool isForwardTurn);
 
   // Footnote navigation

src/activities/reader/EpubReaderMenuActivity.cpp

@@ -10,11 +10,14 @@
 EpubReaderMenuActivity::EpubReaderMenuActivity(GfxRenderer& renderer, MappedInputManager& mappedInput,
                                                const std::string& title, const int currentPage, const int totalPages,
                                                const int bookProgressPercent, const uint8_t currentOrientation,
-                                               const bool hasFootnotes)
+                                               const bool hasFootnotes, const int8_t initialEmbeddedStyleOverride,
+                                               const int8_t initialImageRenderingOverride)
     : Activity("EpubReaderMenu", renderer, mappedInput),
       menuItems(buildMenuItems(hasFootnotes)),
       title(title),
       pendingOrientation(currentOrientation),
+      pendingEmbeddedStyleOverride(initialEmbeddedStyleOverride),
+      pendingImageRenderingOverride(initialImageRenderingOverride),
       currentPage(currentPage),
       totalPages(totalPages),
       bookProgressPercent(bookProgressPercent) {}
@@ -26,6 +29,8 @@ std::vector<EpubReaderMenuActivity::MenuItem> EpubReaderMenuActivity::buildMenuI
   if (hasFootnotes) {
     items.push_back({MenuAction::FOOTNOTES, StrId::STR_FOOTNOTES});
   }
+  items.push_back({MenuAction::EMBEDDED_STYLE, StrId::STR_EMBEDDED_STYLE});
+  items.push_back({MenuAction::IMAGE_RENDERING, StrId::STR_IMAGES});
   items.push_back({MenuAction::ROTATE_SCREEN, StrId::STR_ORIENTATION});
   items.push_back({MenuAction::AUTO_PAGE_TURN, StrId::STR_AUTO_TURN_PAGES_PER_MIN});
   items.push_back({MenuAction::GO_TO_PERCENT, StrId::STR_GO_TO_PERCENT});
@@ -71,13 +76,41 @@ void EpubReaderMenuActivity::loop() {
       return;
     }
 
-    setResult(MenuResult{static_cast<int>(selectedAction), pendingOrientation, selectedPageTurnOption});
+    if (selectedAction == MenuAction::EMBEDDED_STYLE) {
+      // Cycle per-book override: default -> ON -> OFF -> default.
+      if (pendingEmbeddedStyleOverride < 0) {
+        pendingEmbeddedStyleOverride = 1;
+      } else if (pendingEmbeddedStyleOverride > 0) {
+        pendingEmbeddedStyleOverride = 0;
+      } else {
+        pendingEmbeddedStyleOverride = -1;
+      }
+      requestUpdate();
+      return;
+    }
+
+    if (selectedAction == MenuAction::IMAGE_RENDERING) {
+      // Cycle per-book override: default -> display -> placeholder -> suppress -> default.
+      if (pendingImageRenderingOverride < 0) {
+        pendingImageRenderingOverride = 0;
+      } else if (pendingImageRenderingOverride >= 2) {
+        pendingImageRenderingOverride = -1;
+      } else {
+        pendingImageRenderingOverride++;
+      }
+      requestUpdate();
+      return;
+    }
+
+    setResult(MenuResult{static_cast<int>(selectedAction), pendingOrientation, selectedPageTurnOption,
+                         pendingEmbeddedStyleOverride, pendingImageRenderingOverride});
     finish();
     return;
   } else if (mappedInput.wasReleased(MappedInputManager::Button::Back)) {
     ActivityResult result;
     result.isCancelled = true;
-    result.data = MenuResult{-1, pendingOrientation, selectedPageTurnOption};
+    result.data = MenuResult{-1, pendingOrientation, selectedPageTurnOption, pendingEmbeddedStyleOverride,
+                             pendingImageRenderingOverride};
     setResult(std::move(result));
     finish();
     return;
@@ -147,6 +180,26 @@ void EpubReaderMenuActivity::render(RenderLock&&) {
       const auto width = renderer.getTextWidth(UI_10_FONT_ID, value);
       renderer.drawText(UI_10_FONT_ID, contentX + contentWidth - 20 - width, displayY, value, !isSelected);
     }
+
+    if (menuItems[i].action == MenuAction::EMBEDDED_STYLE) {
+      const char* value = tr(STR_DEFAULT_VALUE);
+      if (pendingEmbeddedStyleOverride == 1) {
+        value = tr(STR_STATE_ON);
+      } else if (pendingEmbeddedStyleOverride == 0) {
+        value = tr(STR_STATE_OFF);
+      }
+      const auto width = renderer.getTextWidth(UI_10_FONT_ID, value);
+      renderer.drawText(UI_10_FONT_ID, contentX + contentWidth - 20 - width, displayY, value, !isSelected);
+    }
+
+    if (menuItems[i].action == MenuAction::IMAGE_RENDERING) {
+      const char* value = tr(STR_DEFAULT_VALUE);
+      if (pendingImageRenderingOverride >= 0 && pendingImageRenderingOverride < imageRenderingLabels.size()) {
+        value = I18N.get(imageRenderingLabels[pendingImageRenderingOverride]);
+      }
+      const auto width = renderer.getTextWidth(UI_10_FONT_ID, value);
+      renderer.drawText(UI_10_FONT_ID, contentX + contentWidth - 20 - width, displayY, value, !isSelected);
+    }
   }
 
   // Footer / Hints

src/activities/reader/EpubReaderMenuActivity.h

@@ -14,6 +14,8 @@ class EpubReaderMenuActivity final : public Activity {
   enum class MenuAction {
     SELECT_CHAPTER,
     FOOTNOTES,
+    EMBEDDED_STYLE,
+    IMAGE_RENDERING,
     GO_TO_PERCENT,
     AUTO_PAGE_TURN,
     ROTATE_SCREEN,
@@ -26,7 +28,9 @@ class EpubReaderMenuActivity final : public Activity {
 
   explicit EpubReaderMenuActivity(GfxRenderer& renderer, MappedInputManager& mappedInput, const std::string& title,
                                   const int currentPage, const int totalPages, const int bookProgressPercent,
-                                  const uint8_t currentOrientation, const bool hasFootnotes);
+                                  const uint8_t currentOrientation, const bool hasFootnotes,
+                                  const int8_t initialEmbeddedStyleOverride,
+                                  const int8_t initialImageRenderingOverride);
 
   void onEnter() override;
   void onExit() override;
@@ -50,8 +54,12 @@ class EpubReaderMenuActivity final : public Activity {
   std::string title = "Reader Menu";
   uint8_t pendingOrientation = 0;
   uint8_t selectedPageTurnOption = 0;
+  int8_t pendingEmbeddedStyleOverride = -1;
+  int8_t pendingImageRenderingOverride = -1;
   const std::vector<StrId> orientationLabels = {StrId::STR_PORTRAIT, StrId::STR_LANDSCAPE_CW, StrId::STR_INVERTED,
                                                 StrId::STR_LANDSCAPE_CCW};
+  const std::vector<StrId> imageRenderingLabels = {StrId::STR_IMAGES_DISPLAY, StrId::STR_IMAGES_PLACEHOLDER,
+                                                   StrId::STR_IMAGES_SUPPRESS};
   const std::vector<const char*> pageTurnLabels = {I18N.get(StrId::STR_STATE_OFF), "1", "3", "6", "12"};
   int currentPage = 0;
   int totalPages = 0;