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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/LexicalPath.h>
#include <AK/StringBuilder.h>
#include <AK/Utf32View.h>
#include <LibCore/DirIterator.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/EmojiInputDialog.h>
#include <LibGUI/Event.h>
#include <LibGUI/Frame.h>
#include <stdlib.h>
namespace GUI {
static Vector<u32> supported_emoji_code_points()
{
Vector<u32> code_points;
Core::DirIterator dt("/res/emoji", Core::DirIterator::SkipDots);
while (dt.has_next()) {
auto filename = dt.next_path();
auto lexical_path = LexicalPath(filename);
if (lexical_path.extension() != "png")
continue;
auto basename = lexical_path.basename();
if (!basename.starts_with("U+"))
continue;
// FIXME: Handle multi code point emojis.
if (basename.contains('_'))
continue;
u32 code_point = strtoul(basename.to_string().characters() + 2, nullptr, 16);
code_points.append(code_point);
}
return code_points;
}
EmojiInputDialog::EmojiInputDialog(Window* parent_window)
: Dialog(parent_window)
{
auto& main_widget = set_main_widget<Frame>();
main_widget.set_frame_shape(Gfx::FrameShape::Container);
main_widget.set_frame_shadow(Gfx::FrameShadow::Raised);
main_widget.set_fill_with_background_color(true);
auto& main_layout = main_widget.set_layout<VerticalBoxLayout>();
main_layout.set_margins(1);
main_layout.set_spacing(0);
auto code_points = supported_emoji_code_points();
size_t index = 0;
size_t columns = 10;
size_t rows = ceil_div(code_points.size(), columns);
constexpr int button_size = 18;
// FIXME: I have no idea why this is needed, you'd think that button width * number of buttons would make them fit, but the last one gets cut off.
constexpr int magic_offset = 7;
int dialog_width = button_size * columns + magic_offset;
int dialog_height = button_size * rows;
set_minimum_size(dialog_width, dialog_height);
set_frameless(true);
for (size_t row = 0; row < rows && index < code_points.size(); ++row) {
auto& horizontal_container = main_widget.add<Widget>();
auto& horizontal_layout = horizontal_container.set_layout<HorizontalBoxLayout>();
horizontal_layout.set_spacing(0);
for (size_t column = 0; column < columns; ++column) {
if (index < code_points.size()) {
// FIXME: Also emit U+FE0F for single code point emojis, currently
// they get shown as text glyphs if available.
// This will require buttons to don't calculate their length as 2,
// currently it just shows an ellipsis. It will also require some
// tweaking of the mechanism that is currently being used to insert
// which is a key event with a single code point.
StringBuilder builder;
builder.append(Utf32View(&code_points[index++], 1));
auto emoji_text = builder.to_string();
auto& button = horizontal_container.add<Button>(emoji_text);
button.set_fixed_size(button_size, button_size);
button.set_button_style(Gfx::ButtonStyle::Coolbar);
button.on_click = [this, button = &button](auto) {
m_selected_emoji_text = button->text();
done(ExecOK);
};
} else {
horizontal_container.add<Widget>();
}
}
}
}
void EmojiInputDialog::event(Core::Event& event)
{
if (event.type() == Event::KeyDown) {
auto& key_event = static_cast<KeyEvent&>(event);
if (key_event.key() == Key_Escape) {
done(ExecCancel);
return;
}
}
Dialog::event(event);
}
}
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