ladybird/Userland/Utilities/copy.cpp
Lucas CHOLLET 1a97382305 LibGUI: Make Application's construction fallible
The pattern to construct `Application` was to use the `try_create`
method from the `C_OBJECT` macro. While being safe from an OOM
perspective, this method doesn't propagate errors from the constructor.
This patch make `Application` use the `C_OBJECT_ABSTRACT` and manually
define a `create` method that can bubble up errors from the
construction stage.

This commit also removes the ability to use `argc` and `argv` to
create an `Application`, only `Main`'s `Arguments` can be used.

From a user point of view, the patch renames `try_create` => `create`,
hence the huge number of modified files.
2023-05-05 16:41:21 +01:00

73 lines
2 KiB
C++

/*
* Copyright (c) 2019-2021, Sergey Bugaev <bugaevc@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Assertions.h>
#include <AK/ByteBuffer.h>
#include <AK/String.h>
#include <AK/StringBuilder.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibGUI/Application.h>
#include <LibGUI/Clipboard.h>
#include <LibMain/Main.h>
#include <unistd.h>
struct Options {
String data;
StringView type;
bool clear;
};
static ErrorOr<Options> parse_options(Main::Arguments arguments)
{
auto type = "text/plain"sv;
Vector<StringView> text;
bool clear = false;
Core::ArgsParser args_parser;
args_parser.set_general_help("Copy text from stdin or the command-line to the clipboard.");
args_parser.add_option(type, "Pick a type", "type", 't', "type");
args_parser.add_option(clear, "Instead of copying, clear the clipboard", "clear", 'c');
args_parser.add_positional_argument(text, "Text to copy", "text", Core::ArgsParser::Required::No);
args_parser.parse(arguments);
Options options;
options.type = type;
options.clear = clear;
if (clear) {
// We're not copying anything.
} else if (text.is_empty()) {
// Copy our stdin.
auto c_stdin = TRY(Core::File::standard_input());
auto buffer = TRY(c_stdin->read_until_eof());
dbgln("Read size {}", buffer.size());
dbgln("Read data: `{}`", StringView(buffer.bytes()));
options.data = TRY(String::from_utf8(StringView(buffer.bytes())));
} else {
// Copy the rest of our command-line args.
StringBuilder builder;
builder.join(' ', text);
options.data = TRY(builder.to_string());
}
return options;
}
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
auto app = TRY(GUI::Application::create(arguments));
Options options = TRY(parse_options(arguments));
auto& clipboard = GUI::Clipboard::the();
if (options.clear)
clipboard.clear();
else
clipboard.set_data(options.data.bytes(), options.type);
return 0;
}