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100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
/**
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* Copyright (c) 2007-2012, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "xterm_mouse.hh"
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#include <unistd.h>
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#include "base/lnav_log.hh"
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#include "config.h"
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const char* xterm_mouse::XT_TERMCAP = "\033[?1000%?%p1%{1}%=%th%el%;";
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const char* xterm_mouse::XT_TERMCAP_TRACKING = "\033[?1002%?%p1%{1}%=%th%el%;";
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const char* xterm_mouse::XT_TERMCAP_SGR = "\033[?1006%?%p1%{1}%=%th%el%;";
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void
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xterm_mouse::handle_mouse()
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{
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bool release = false;
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size_t index = 0;
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int bstate, x, y;
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char buffer[64];
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bool done = false;
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while (!done) {
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if (index >= sizeof(buffer) - 1) {
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break;
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}
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auto ch = getch();
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switch (ch) {
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case 'm':
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release = true;
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done = true;
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break;
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case 'M':
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done = true;
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break;
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default:
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buffer[index++] = (char) ch;
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break;
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}
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}
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buffer[index] = '\0';
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if (sscanf(buffer, "%d;%d;%d", &bstate, &x, &y) == 3) {
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if (this->xm_behavior) {
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this->xm_behavior->mouse_event(bstate, release, x, y);
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}
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} else {
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log_error("bad mouse escape sequence: %s", buffer);
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}
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}
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void
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xterm_mouse::set_enabled(bool enabled)
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{
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if (is_available()) {
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if (this->xm_enabled != enabled) {
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putp(tparm((char*) XT_TERMCAP, enabled ? 1 : 0));
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putp(tparm((char*) XT_TERMCAP_TRACKING, enabled ? 1 : 0));
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putp(tparm((char*) XT_TERMCAP_SGR, enabled ? 1 : 0));
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fflush(stdout);
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this->xm_enabled = enabled;
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}
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} else {
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log_warning("mouse support is not available");
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}
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}
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bool
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xterm_mouse::is_available()
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{
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return isatty(STDOUT_FILENO);
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}
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