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+/**
+ * Copyright (c) 2018, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * 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.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ * @file input_dispatcher.hh
+ */
+
+#ifndef INPUT_DISPATCHER_HH
+#define INPUT_DISPATCHER_HH
+
+#include <functional>
+
+#include <sys/types.h>
+
+#define KEY_ESCAPE 0x1b
+#define KEY_CTRL_RBRACKET 0x1d
+
+class input_dispatcher {
+public:
+ void new_input(const struct timeval& current_time, int ch);
+
+ void poll(const struct timeval& current_time);
+
+ bool in_escape() const
+ {
+ return this->id_escape_index > 0;
+ }
+
+ enum class escape_match_t {
+ NONE,
+ PARTIAL,
+ FULL,
+ };
+
+ std::function<escape_match_t(const char*)> id_escape_matcher;
+ std::function<bool(int)> id_key_handler;
+ std::function<void(const char*)> id_escape_handler;
+ std::function<void()> id_mouse_handler;
+ std::function<void(const char*)> id_unhandled_handler;
+
+private:
+ void reset_escape_buffer(int ch,
+ const struct timeval& current_time,
+ ssize_t expected_size = -1);
+ void append_to_escape_buffer(int ch);
+
+ char id_escape_buffer[32];
+ ssize_t id_escape_index{0};
+ ssize_t id_escape_expected_size{-1};
+ struct timeval id_escape_start_time {
+ 0, 0
+ };
+};
+
+#endif