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/*
* Copyright (c) 2021, Nick Vella <nick@nxk.io>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "RunWindow.h"
#include <AK/LexicalPath.h>
#include <AK/URL.h>
#include <Applications/Run/RunGML.h>
#include <LibCore/File.h>
#include <LibCore/StandardPaths.h>
#include <LibCore/Stream.h>
#include <LibDesktop/Launcher.h>
#include <LibGUI/Button.h>
#include <LibGUI/Event.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/Icon.h>
#include <LibGUI/ImageWidget.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Widget.h>
#include <spawn.h>
#include <stdio.h>
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>
RunWindow::RunWindow()
: m_path_history()
, m_path_history_model(GUI::ItemListModel<DeprecatedString>::create(m_path_history))
{
// FIXME: Handle failure to load history somehow.
(void)load_history();
auto app_icon = GUI::Icon::default_icon("app-run"sv);
set_title("Run");
set_icon(app_icon.bitmap_for_size(16));
resize(345, 100);
set_resizable(false);
set_minimizable(false);
auto main_widget = set_main_widget<GUI::Widget>().release_value_but_fixme_should_propagate_errors();
main_widget->load_from_gml(run_gml).release_value_but_fixme_should_propagate_errors();
m_icon_image_widget = *main_widget->find_descendant_of_type_named<GUI::ImageWidget>("icon");
m_icon_image_widget->set_bitmap(app_icon.bitmap_for_size(32));
m_path_combo_box = *main_widget->find_descendant_of_type_named<GUI::ComboBox>("path");
m_path_combo_box->set_model(m_path_history_model);
if (!m_path_history.is_empty())
m_path_combo_box->set_selected_index(0);
m_ok_button = *main_widget->find_descendant_of_type_named<GUI::DialogButton>("ok_button");
m_ok_button->on_click = [this](auto) {
do_run();
};
m_ok_button->set_default(true);
m_cancel_button = *main_widget->find_descendant_of_type_named<GUI::DialogButton>("cancel_button");
m_cancel_button->on_click = [this](auto) {
close();
};
m_browse_button = *find_descendant_of_type_named<GUI::DialogButton>("browse_button");
m_browse_button->on_click = [this](auto) {
Optional<DeprecatedString> path = GUI::FilePicker::get_open_filepath(this, {}, Core::StandardPaths::home_directory(), false, GUI::Dialog::ScreenPosition::Center);
if (path.has_value())
m_path_combo_box->set_text(path.value().view());
};
}
void RunWindow::event(Core::Event& event)
{
if (event.type() == GUI::Event::KeyDown) {
auto& key_event = static_cast<GUI::KeyEvent&>(event);
if (key_event.key() == Key_Escape) {
// Escape key pressed, close dialog
close();
return;
} else if ((key_event.key() == Key_Up || key_event.key() == Key_Down) && m_path_history.is_empty()) {
return;
}
}
Window::event(event);
}
void RunWindow::do_run()
{
auto run_input = m_path_combo_box->text().trim_whitespace();
hide();
if (run_via_launch(run_input) || run_as_command(run_input)) {
// Remove any existing history entry, prepend the successful run string to history and save.
m_path_history.remove_all_matching([&](DeprecatedString v) { return v == run_input; });
m_path_history.prepend(run_input);
// FIXME: Handle failure to save history somehow.
(void)save_history();
close();
return;
}
GUI::MessageBox::show_error(this, "Failed to run. Please check your command, path, or address, and try again."sv);
show();
}
bool RunWindow::run_as_command(DeprecatedString const& run_input)
{
pid_t child_pid;
char const* shell_executable = "/bin/Shell"; // TODO query and use the user's preferred shell.
char const* argv[] = { shell_executable, "-c", run_input.characters(), nullptr };
if ((errno = posix_spawn(&child_pid, shell_executable, nullptr, nullptr, const_cast<char**>(argv), environ))) {
perror("posix_spawn");
return false;
}
// Command spawned in child shell. Hide and wait for exit code.
int status;
if (waitpid(child_pid, &status, 0) < 0)
return false;
int child_error = WEXITSTATUS(status);
dbgln("Child shell exited with code {}", child_error);
// 127 is typically the shell indicating command not found. 126 for all other errors.
if (child_error == 126 || child_error == 127) {
return false;
}
dbgln("Ran via command shell.");
return true;
}
bool RunWindow::run_via_launch(DeprecatedString const& run_input)
{
auto url = URL::create_with_url_or_path(run_input);
if (url.scheme() == "file") {
auto real_path = Core::File::real_path_for(url.path());
if (real_path.is_null()) {
// errno *should* be preserved from Core::File::real_path_for().
warnln("Failed to launch '{}': {}", url.path(), strerror(errno));
return false;
}
url = URL::create_with_url_or_path(real_path);
}
if (!Desktop::Launcher::open(url)) {
warnln("Failed to launch '{}'", url);
return false;
}
dbgln("Ran via URL launch.");
return true;
}
DeprecatedString RunWindow::history_file_path()
{
return LexicalPath::canonicalized_path(DeprecatedString::formatted("{}/{}", Core::StandardPaths::config_directory(), "RunHistory.txt"));
}
ErrorOr<void> RunWindow::load_history()
{
m_path_history.clear();
auto file = TRY(Core::Stream::File::open(history_file_path(), Core::Stream::OpenMode::Read));
auto buffered_file = TRY(Core::Stream::BufferedFile::create(move(file)));
Array<u8, PAGE_SIZE> line_buffer;
while (!buffered_file->is_eof()) {
StringView line = TRY(buffered_file->read_line(line_buffer));
if (!line.is_empty() && !line.is_whitespace())
m_path_history.append(line);
}
return {};
}
ErrorOr<void> RunWindow::save_history()
{
auto file = TRY(Core::Stream::File::open(history_file_path(), Core::Stream::OpenMode::Write));
// Write the first 25 items of history
for (int i = 0; i < min(static_cast<int>(m_path_history.size()), 25); i++)
TRY(file->write(DeprecatedString::formatted("{}\n", m_path_history[i]).bytes()));
return {};
}
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