lnav/src/input_dispatcher.hh
2020-09-11 23:10:11 -07:00

76 lines
2.6 KiB
C++

/**
* 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 <sys/types.h>
#include <functional>
#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