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Spreadsheet: Make file export functions return ErrorOr<>

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This commit is contained in:
Karol Kosek 2022-12-31 15:38:12 +01:00 • committed by Ali Mohammad Pur
parent 29a3cdcfb7
commit 5793f7749c
5 changed files with 59 additions and 68 deletions
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115
Userland/Applications/Spreadsheet/ExportDialog.cpp
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@ -90,51 +90,50 @@ CSVExportDialogPage::CSVExportDialogPage(Sheet const& sheet)
update_preview();
}
auto CSVExportDialogPage::make_writer(OutputStream& stream) -> Optional<XSV>
auto CSVExportDialogPage::make_writer(OutputStream& stream) -> ErrorOr<XSV>
{
DeprecatedString delimiter;
DeprecatedString quote;
Writer::WriterTraits::QuoteEscape quote_escape;
auto delimiter = TRY([this]() -> ErrorOr<DeprecatedString> {
if (m_delimiter_other_radio->is_checked()) {
if (m_delimiter_other_text_box->text().is_empty())
return Error::from_string_literal("Delimiter unset");
return m_delimiter_other_text_box->text();
}
if (m_delimiter_comma_radio->is_checked())
return ",";
if (m_delimiter_semicolon_radio->is_checked())
return ";";
if (m_delimiter_tab_radio->is_checked())
return "\t";
if (m_delimiter_space_radio->is_checked())
return " ";
return Error::from_string_literal("Delimiter unset");
}());
// Delimiter
if (m_delimiter_other_radio->is_checked())
delimiter = m_delimiter_other_text_box->text();
else if (m_delimiter_comma_radio->is_checked())
delimiter = ",";
else if (m_delimiter_semicolon_radio->is_checked())
delimiter = ";";
else if (m_delimiter_tab_radio->is_checked())
delimiter = "\t";
else if (m_delimiter_space_radio->is_checked())
delimiter = " ";
else
return {};
auto quote = TRY([this]() -> ErrorOr<DeprecatedString> {
if (m_quote_other_radio->is_checked()) {
if (m_quote_other_text_box->text().is_empty())
return Error::from_string_literal("Quote separator unset");
return m_quote_other_text_box->text();
}
if (m_quote_single_radio->is_checked())
return "'";
if (m_quote_double_radio->is_checked())
return "\"";
return Error::from_string_literal("Quote separator unset");
}());
// Quote separator
if (m_quote_other_radio->is_checked())
quote = m_quote_other_text_box->text();
else if (m_quote_single_radio->is_checked())
quote = "'";
else if (m_quote_double_radio->is_checked())
quote = "\"";
else
return {};
// Quote escape
auto index = m_quote_escape_combo_box->selected_index();
if (index == 0)
quote_escape = Writer::WriterTraits::Repeat;
else if (index == 1)
quote_escape = Writer::WriterTraits::Backslash;
else
return {};
auto quote_escape = [this]() {
auto index = m_quote_escape_combo_box->selected_index();
if (index == 0)
return Writer::WriterTraits::Repeat;
if (index == 1)
return Writer::WriterTraits::Backslash;
VERIFY_NOT_REACHED();
}();
auto should_export_headers = m_export_header_check_box->is_checked();
auto should_quote_all_fields = m_quote_all_fields_check_box->is_checked();
if (quote.is_empty() || delimiter.is_empty())
return {};
Writer::WriterTraits traits {
move(delimiter),
move(quote),
@ -159,46 +158,45 @@ auto CSVExportDialogPage::make_writer(OutputStream& stream) -> Optional<XSV>
void CSVExportDialogPage::update_preview()
{
DuplexMemoryStream memory_stream;
auto maybe_writer = make_writer(memory_stream);
if (!maybe_writer.has_value()) {
m_data_preview_text_editor->set_text({});
auto writer_or_error = make_writer(memory_stream);
if (!writer_or_error.is_error()) {
m_data_preview_text_editor->set_text(DeprecatedString::formatted("Cannot update preview: {}", writer_or_error.error()));
return;
}
auto writer = writer_or_error.release_value();
maybe_writer->generate_preview();
writer.generate_preview();
auto buffer = memory_stream.copy_into_contiguous_buffer();
m_data_preview_text_editor->set_text(StringView(buffer));
m_data_preview_text_editor->update();
}
Result<void, DeprecatedString> ExportDialog::make_and_run_for(StringView mime, Core::File& file, Workbook& workbook)
ErrorOr<void> ExportDialog::make_and_run_for(StringView mime, Core::File& file, Workbook& workbook)
{
auto wizard = GUI::WizardDialog::construct(GUI::Application::the()->active_window());
wizard->set_title("File Export Wizard");
wizard->set_icon(GUI::Icon::default_icon("app-spreadsheet"sv).bitmap_for_size(16));
auto export_xsv = [&]() -> Result<void, DeprecatedString> {
auto export_xsv = [&]() -> ErrorOr<void> {
// FIXME: Prompt for the user to select a specific sheet to export
// For now, export the first sheet (if available)
if (!workbook.has_sheets())
return DeprecatedString { "The workbook has no sheets to export!" };
return Error::from_string_literal("The workbook has no sheets to export!");
CSVExportDialogPage page { workbook.sheets().first() };
wizard->replace_page(page.page());
if (wizard->exec() != GUI::Dialog::ExecResult::OK)
return DeprecatedString { "CSV Export was cancelled" };
return Error::from_string_literal("CSV Export was cancelled");
auto file_stream = Core::OutputFileStream(file);
auto writer = page.make_writer(file_stream);
if (!writer.has_value())
return DeprecatedString::formatted("CSV Export failed");
writer->generate();
if (writer->has_error())
return DeprecatedString::formatted("CSV Export failed: {}", writer->error_string());
auto writer = TRY(page.make_writer(file_stream));
writer.generate();
if (writer.has_error())
return Error::from_string_literal("CSV Export failed");
return {};
};
auto export_worksheet = [&]() -> Result<void, DeprecatedString> {
auto export_worksheet = [&]() -> ErrorOr<void> {
JsonArray array;
for (auto& sheet : workbook.sheets())
array.append(sheet.to_json());
@ -206,14 +204,7 @@ Result<void, DeprecatedString> ExportDialog::make_and_run_for(StringView mime, C
auto file_content = array.to_deprecated_string();
bool result = file.write(file_content);
if (!result) {
int error_number = errno;
auto const* error = strerror(error_number);
StringBuilder sb;
sb.append("Unable to save file. Error: "sv);
sb.append({ error, strlen(error) });
return sb.to_deprecated_string();
return Error::from_string_literal("Unable to save file.");
}
return {};
@ -242,7 +233,7 @@ Result<void, DeprecatedString> ExportDialog::make_and_run_for(StringView mime, C
wizard->push_page(page);
if (wizard->exec() != GUI::Dialog::ExecResult::OK)
return DeprecatedString { "Export was cancelled" };
return Error::from_string_literal("Export was cancelled");
if (format_combo_box->selected_index() == 0)
return export_xsv();