1 files changed, 110 insertions, 0 deletions
diff --git a/Libraries/LibGUI/EmojiInputDialog.cpp b/Libraries/LibGUI/EmojiInputDialog.cpp
new file mode 100644
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+++ b/Libraries/LibGUI/EmojiInputDialog.cpp
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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/FileSystemPath.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_codepoints()
+{
+    Vector<u32> codepoints;
+    Core::DirIterator dt("/res/emoji", Core::DirIterator::SkipDots);
+    while (dt.has_next()) {
+        auto filename = dt.next_path();
+        auto fspath = FileSystemPath(filename);
+        if (fspath.extension() != "png")
+            continue;
+        auto basename = fspath.basename();
+        if (!basename.starts_with("U+"))
+            continue;
+        u32 codepoint = strtoul(basename.characters() + 2, nullptr, 16);
+        codepoints.append(codepoint);
+    }
+    return codepoints;
+}
+
+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_spacing(0);
+
+    auto codepoints = supported_emoji_codepoints();
+
+    size_t index = 0;
+    size_t columns = 5;
+    size_t rows = ceil_div(codepoints.size(), columns);
+
+    for (size_t row = 0; row < rows && index < codepoints.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) {
+            StringBuilder builder;
+            builder.append(Utf32View(&codepoints[index++], 1));
+            auto emoji_text = builder.to_string();
+            auto& button = horizontal_container.add<Button>(emoji_text);
+            button.set_button_style(Gfx::ButtonStyle::CoolBar);
+            button.on_click = [this, button = &button](auto) {
+                m_selected_emoji_text = button->text();
+                done(ExecOK);
+            };
+            if (index >= codepoints.size()) {
+                horizontal_layout.add_spacer();
+                break;
+            }
+        }
+    }
+}
+
+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);
+}
+
+}