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PDFViewer: Support a continuous page view mode

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This commit is contained in:
Matthew Olsson 2022-03-29 21:27:17 -07:00 • committed by Andreas Kling
parent 091c2cfdca
commit 3ecb41b7d9
5 changed files with 196 additions and 49 deletions
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24
Userland/Applications/PDFViewer/PDFViewerWidget.cpp
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@ -171,13 +171,19 @@ void PDFViewerWidget::open_file(Core::File& file)
{
window()->set_title(String::formatted("{} - PDF Viewer", file.filename()));
auto handle_error = [&]<typename T>(PDF::PDFErrorOr<T> maybe_error) {
if (maybe_error.is_error()) {
auto error = maybe_error.release_error();
GUI::MessageBox::show_error(nullptr, String::formatted("Couldn't load PDF {}:\n{}", file.filename(), error.message()));
return true;
}
return false;
};
m_buffer = file.read_all();
auto maybe_document = PDF::Document::create(m_buffer);
if (maybe_document.is_error()) {
auto error = maybe_document.release_error();
GUI::MessageBox::show_error(nullptr, String::formatted("Couldn't load PDF {}:\n{}", file.filename(), error.message()));
if (handle_error(maybe_document))
return;
}
auto document = maybe_document.release_value();
@ -186,14 +192,12 @@ void PDFViewerWidget::open_file(Core::File& file)
VERIFY_NOT_REACHED();
}
auto result = document->initialize();
if (result.is_error()) {
auto error = result.release_error();
GUI::MessageBox::show_error(nullptr, String::formatted("Couldn't load PDF {}:\n{}", file.filename(), error.message()));
if (handle_error(document->initialize()))
return;
if (handle_error(m_viewer->set_document(document)))
return;
}
m_viewer->set_document(document);
m_total_page_label->set_text(String::formatted("of {}", document->get_page_count()));
m_page_text_box->set_enabled(true);