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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/Button.h>
#include <LibGUI/ComboBox.h>
#include <LibGUI/Desktop.h>
#include <LibGUI/ListView.h>
#include <LibGUI/Model.h>
#include <LibGUI/ScrollBar.h>
#include <LibGUI/TextEditor.h>
#include <LibGUI/Window.h>
namespace GUI {
ComboBox::ComboBox(Widget* parent)
: Widget(parent)
{
m_editor = TextEditor::construct(TextEditor::Type::SingleLine, this);
m_editor->on_change = [this] {
if (on_change)
on_change(m_editor->text(), m_list_view->selection().first());
};
m_editor->on_return_pressed = [this] {
if (on_return_pressed)
on_return_pressed();
};
m_open_button = Button::construct(this);
m_open_button->set_focusable(false);
m_open_button->set_text("\xc3\xb7");
m_open_button->on_click = [this](auto&) {
if (m_list_window->is_visible())
close();
else
open();
};
m_list_window = Window::construct(this);
// FIXME: This is obviously not a tooltip window, but it's the closest thing to what we want atm.
m_list_window->set_window_type(WindowType::Tooltip);
m_list_view = ListView::construct(nullptr);
m_list_view->horizontal_scrollbar().set_visible(false);
m_list_window->set_main_widget(m_list_view);
m_list_view->on_selection = [this](auto& index) {
ASSERT(model());
auto new_value = model()->data(index).to_string();
m_editor->set_text(new_value);
m_editor->select_all();
close();
deferred_invoke([this, index](auto&) {
if (on_change)
on_change(m_editor->text(), index);
});
};
}
ComboBox::~ComboBox()
{
}
void ComboBox::resize_event(ResizeEvent& event)
{
int frame_thickness = m_editor->frame_thickness();
int button_height = event.size().height() - frame_thickness * 2;
int button_width = 15;
m_open_button->set_relative_rect(width() - button_width - frame_thickness, frame_thickness, button_width, button_height);
m_editor->set_relative_rect(0, 0, width(), height());
}
void ComboBox::set_model(NonnullRefPtr<Model> model)
{
m_list_view->set_model(move(model));
}
void ComboBox::select_all()
{
m_editor->select_all();
}
void ComboBox::open()
{
if (!model())
return;
auto my_screen_rect = screen_relative_rect();
int longest_item_width = 0;
for (int i = 0; i < model()->row_count(); ++i) {
auto index = model()->index(i);
auto item_text = model()->data(index).to_string();
longest_item_width = max(longest_item_width, m_list_view->font().width(item_text));
}
Gfx::Size size {
max(width(), longest_item_width + m_list_view->width_occupied_by_vertical_scrollbar() + m_list_view->frame_thickness() * 2 + m_list_view->horizontal_padding()),
model()->row_count() * m_list_view->item_height() + m_list_view->frame_thickness() * 2
};
Gfx::Rect list_window_rect { my_screen_rect.bottom_left(), size };
list_window_rect.intersect(Desktop::the().rect().shrunken(0, 128));
m_list_window->set_rect(list_window_rect);
m_list_window->show();
}
void ComboBox::close()
{
m_list_window->hide();
m_editor->set_focus(true);
}
String ComboBox::text() const
{
return m_editor->text();
}
void ComboBox::set_text(const String& text)
{
m_editor->set_text(text);
}
void ComboBox::set_only_allow_values_from_model(bool b)
{
if (m_only_allow_values_from_model == b)
return;
m_only_allow_values_from_model = b;
m_editor->set_readonly(m_only_allow_values_from_model);
}
}
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