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+/*
+ * Copyright (c) 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 <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;
+ u32 code_point = strtoul(basename.characters() + 2, nullptr, 16);
+ code_points.append(code_point);
+ }
+ return code_points;
+}
+
+EmojiInputDialog::EmojiInputDialog(Window* parent_window)
+ : Dialog(parent_window)
+{
+ set_frameless(true);
+
+ 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, 1, 1, 1 });
+ main_layout.set_spacing(0);
+
+ auto code_points = supported_emoji_code_points();
+
+ size_t index = 0;
+ size_t columns = 6;
+ size_t rows = ceil_div(code_points.size(), columns);
+
+ 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()) {
+ 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_min_size(16, 16);
+ 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);
+}
+
+}