Add full emoji support

include/EmojiPickButton.h

@@ -0,0 +1,50 @@
+/*
+ * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef EMOJI_PICK_BUTTON_H
+#define EMOJI_PICK_BUTTON_H
+
+#include <QEvent>
+#include <QWidget>
+
+#include "EmojiPanel.h"
+#include "FlatButton.h"
+
+class EmojiPickButton : public FlatButton
+{
+	Q_OBJECT
+public:
+	explicit EmojiPickButton(QWidget *parent = nullptr);
+
+signals:
+	void emojiSelected(const QString &emoji);
+
+protected:
+	void enterEvent(QEvent *e) override;
+	void leaveEvent(QEvent *e) override;
+
+private:
+	// Vertical distance from panel's bottom.
+	int vertical_distance_ = 10;
+
+	// Horizontal distance from panel's bottom right corner.
+	int horizontal_distance_ = 70;
+
+	EmojiPanel *panel_;
+};
+
+#endif  // EMOJI_PICK_BUTTON_H