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Feature: Show img alt text (#168)

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Let's start small by showing the ALT text of IMG. This is rudimentary,
but avoids those otherwise completely blank chapters.

I feel we will need this even when we can render images if that
rendering takes >1s - I would then prefer rendering optional and showing
the ALT text first.
This commit is contained in:
Jonas Diemer 2026-01-15 13:21:46 +01:00 committed by GitHub
parent eb84bcee7c
commit c1c94c0112
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1 changed files with 20 additions and 3 deletions
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23
lib/Epub/Epub/parsers/ChapterHtmlSlimParser.cpp
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@ -79,9 +79,26 @@ void XMLCALL ChapterHtmlSlimParser::startElement(void* userData, const XML_Char*
if (matches(name, IMAGE_TAGS, NUM_IMAGE_TAGS)) { if (matches(name, IMAGE_TAGS, NUM_IMAGE_TAGS)) {
// TODO: Start processing image tags // TODO: Start processing image tags
self->skipUntilDepth = self->depth; std::string alt;
self->depth += 1; if (atts != nullptr) {
return; for (int i = 0; atts[i]; i += 2) {
if (strcmp(atts[i], "alt") == 0) {
alt = "[Image: " + std::string(atts[i + 1]) + "]";
}
}
Serial.printf("[%lu] [EHP] Image alt: %s\n", millis(), alt.c_str());
self->startNewTextBlock(TextBlock::CENTER_ALIGN);
self->italicUntilDepth = min(self->italicUntilDepth, self->depth);
self->depth += 1;
self->characterData(userData, alt.c_str(), alt.length());
} else {
// Skip for now
self->skipUntilDepth = self->depth;
self->depth += 1;
return;
}
} }
if (matches(name, SKIP_TAGS, NUM_SKIP_TAGS)) { if (matches(name, SKIP_TAGS, NUM_SKIP_TAGS)) {