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/**
* Copyright (c) 2007-2012, 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.
*/
#include "xterm_mouse.hh"
#include <unistd.h>
#include "base/lnav_log.hh"
#include "config.h"
const char* xterm_mouse::XT_TERMCAP = "\033[?1000%?%p1%{1}%=%th%el%;";
const char* xterm_mouse::XT_TERMCAP_TRACKING = "\033[?1002%?%p1%{1}%=%th%el%;";
const char* xterm_mouse::XT_TERMCAP_SGR = "\033[?1006%?%p1%{1}%=%th%el%;";
void
xterm_mouse::handle_mouse()
{
bool release = false;
int ch;
size_t index = 0;
int bstate, x, y;
char buffer[64];
bool done = false;
while (!done) {
if (index >= sizeof(buffer) - 1) {
break;
}
ch = getch();
switch (ch) {
case 'm':
release = true;
done = true;
break;
case 'M':
done = true;
break;
default:
buffer[index++] = (char) ch;
break;
}
}
buffer[index] = '\0';
if (sscanf(buffer, "%d;%d;%d", &bstate, &x, &y) == 3) {
if (this->xm_behavior) {
this->xm_behavior->mouse_event(bstate, release, x, y);
}
} else {
log_error("bad mouse escape sequence: %s", buffer);
}
}
void
xterm_mouse::set_enabled(bool enabled)
{
if (is_available()) {
putp(tparm((char*) XT_TERMCAP, enabled ? 1 : 0));
putp(tparm((char*) XT_TERMCAP_TRACKING, enabled ? 1 : 0));
putp(tparm((char*) XT_TERMCAP_SGR, enabled ? 1 : 0));
fflush(stdout);
this->xm_enabled = enabled;
} else {
log_warning("mouse support is not available");
}
}
bool
xterm_mouse::is_available()
{
return isatty(STDOUT_FILENO);
}
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