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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/ProcessChooser.h>
#include <LibGUI/RunningProcessesModel.h>
#include <LibGUI/SortingProxyModel.h>
#include <LibGUI/TableView.h>
namespace GUI {
ProcessChooser::ProcessChooser(StringView window_title, String button_label, Gfx::Bitmap const* window_icon, GUI::Window* parent_window)
: Dialog(parent_window)
, m_window_title(window_title)
, m_button_label(move(button_label))
, m_window_icon(window_icon)
{
set_title(m_window_title);
if (m_window_icon)
set_icon(m_window_icon);
else if (parent_window)
set_icon(parent_window->icon());
resize(300, 340);
center_on_screen();
auto widget = set_main_widget<GUI::Widget>().release_value_but_fixme_should_propagate_errors();
widget->set_fill_with_background_color(true);
widget->set_layout<GUI::VerticalBoxLayout>();
m_table_view = widget->add<GUI::TableView>();
auto process_model = RunningProcessesModel::create();
auto sorting_model = MUST(GUI::SortingProxyModel::create(process_model));
sorting_model->set_sort_role(GUI::ModelRole::Display);
m_table_view->set_model(sorting_model);
m_table_view->set_key_column_and_sort_order(RunningProcessesModel::Column::PID, GUI::SortOrder::Descending);
m_process_model = process_model;
m_table_view->on_activation = [this](ModelIndex const& index) { set_pid_from_index_and_close(index); };
auto& button_container = widget->add<GUI::Widget>();
button_container.set_fixed_height(30);
button_container.set_layout<GUI::HorizontalBoxLayout>();
button_container.layout()->set_margins({ 0, 4, 0 });
button_container.add_spacer().release_value_but_fixme_should_propagate_errors();
auto& select_button = button_container.add<GUI::Button>(m_button_label);
select_button.set_fixed_width(80);
select_button.on_click = [this](auto) {
if (m_table_view->selection().is_empty()) {
GUI::MessageBox::show(this, "No process selected!"sv, m_window_title, GUI::MessageBox::Type::Error);
return;
}
auto index = m_table_view->selection().first();
set_pid_from_index_and_close(index);
};
auto& cancel_button = button_container.add<GUI::Button>(String::from_utf8_short_string("Cancel"sv));
cancel_button.set_fixed_width(80);
cancel_button.on_click = [this](auto) {
done(ExecResult::Cancel);
};
m_process_model->update();
m_refresh_timer = add<Core::Timer>();
m_refresh_timer->start(m_refresh_interval); // Start the timer to update the processes
m_refresh_timer->on_timeout = [this] {
auto previous_selected_pid = -1; // Store the selection index to not to clear the selection upon update.
if (!m_table_view->selection().is_empty()) {
auto pid_as_variant = m_table_view->selection().first().data(GUI::ModelRole::Custom);
previous_selected_pid = pid_as_variant.as_i32();
}
m_process_model->update();
if (previous_selected_pid == -1) {
return;
}
auto model = m_table_view->model();
auto row_count = model->row_count();
auto column_index = 1; // Corresponds to PID column in the m_table_view.
for (int row_index = 0; row_index < row_count; ++row_index) {
auto cell_index = model->index(row_index, column_index);
auto pid_as_variant = cell_index.data(GUI::ModelRole::Custom);
if (previous_selected_pid == pid_as_variant.as_i32()) {
m_table_view->selection().set(cell_index); // Set only if PIDs are matched.
}
}
};
}
void ProcessChooser::set_pid_from_index_and_close(ModelIndex const& index)
{
m_pid = index.data(GUI::ModelRole::Custom).as_i32();
done(ExecResult::OK);
}
}
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