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Spreadsheet: Implement state-preserving saves and loads

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This commit is contained in:
AnotherTest 2020-08-25 00:53:22 +04:30 • committed by Andreas Kling
parent 916e5e8cb3
commit fdf0660064
5 changed files with 215 additions and 22 deletions
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75
Applications/Spreadsheet/Spreadsheet.cpp
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@ -111,15 +111,20 @@ private:
};
Sheet::Sheet(const StringView& name)
: m_name(name)
, m_interpreter(JS::Interpreter::create<SheetGlobalObject>(*this))
: Sheet(EmptyConstruct::EmptyConstructTag)
{
m_name = name;
for (size_t i = 0; i < 20; ++i)
add_row();
for (size_t i = 0; i < 16; ++i)
add_column();
}
Sheet::Sheet(EmptyConstruct)
: m_interpreter(JS::Interpreter::create<SheetGlobalObject>(*this))
{
auto file_or_error = Core::File::open("/res/js/Spreadsheet/runtime.js", Core::IODevice::OpenMode::ReadOnly);
if (!file_or_error.is_error()) {
auto buffer = file_or_error.value()->read_all();
@ -301,6 +306,61 @@ void Cell::reference_from(Cell* other)
referencing_cells.append(other->make_weak_ptr());
}
RefPtr<Sheet> Sheet::from_json(const JsonObject& object)
{
auto sheet = adopt(*new Sheet(EmptyConstruct::EmptyConstructTag));
auto rows = object.get("rows").to_u32(20);
auto columns = object.get("columns");
if (!columns.is_array())
return nullptr;
auto name = object.get("name").as_string_or("Sheet");
sheet->set_name(name);
for (size_t i = 0; i < rows; ++i)
sheet->add_row();
// FIXME: Better error checking.
columns.as_array().for_each([&](auto& value) {
sheet->m_columns.append(value.as_string());
return IterationDecision::Continue;
});
auto cells = object.get("cells").as_object();
auto json = sheet->interpreter().global_object().get("JSON");
auto& parse_function = json.as_object().get("parse").as_function();
cells.for_each_member([&](auto& name, JsonValue& value) {
auto position_option = parse_cell_name(name);
if (!position_option.has_value())
return IterationDecision::Continue;
auto position = position_option.value();
auto& obj = value.as_object();
auto kind = obj.get("kind").as_string_or("LiteralString") == "LiteralString" ? Cell::LiteralString : Cell::Formula;
OwnPtr<Cell> cell;
switch (kind) {
case Cell::LiteralString:
cell = make<Cell>(obj.get("value").to_string(), sheet->make_weak_ptr());
break;
case Cell::Formula: {
auto& interpreter = sheet->interpreter();
JS::MarkedValueList args { interpreter.heap() };
args.append(JS::js_string(interpreter, obj.get("value").as_string()));
auto value = interpreter.call(parse_function, json, move(args));
cell = make<Cell>(obj.get("source").to_string(), move(value), sheet->make_weak_ptr());
break;
}
}
sheet->m_cells.set(position, cell.release_nonnull());
return IterationDecision::Continue;
});
return sheet;
}
JsonObject Sheet::to_json() const
{
JsonObject object;
@ -322,7 +382,16 @@ JsonObject Sheet::to_json() const
JsonObject data;
data.set("kind", it.value->kind == Cell::Kind::Formula ? "Formula" : "LiteralString");
data.set("value", it.value->data);
if (it.value->kind == Cell::Formula) {
data.set("source", it.value->data);
auto json = m_interpreter->global_object().get("JSON");
JS::MarkedValueList args(m_interpreter->heap());
args.append(it.value->evaluated_data);
auto stringified = m_interpreter->call(json.as_object().get("stringify").as_function(), json, move(args));
data.set("value", stringified.to_string_without_side_effects());
} else {
data.set("value", it.value->data);
}
cells.set(key, move(data));
}