mirror of
https://github.com/tstack/lnav
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120 lines
4.0 KiB
C++
120 lines
4.0 KiB
C++
/**
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* Copyright (c) 2014, 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 ON
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* 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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* @file term_extra.hh
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*/
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#ifndef __term_extra_hh
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#define __term_extra_hh
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#include <string.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <string>
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#include "logfile.hh"
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#include "log_format.hh"
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#include "listview_curses.hh"
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class term_extra {
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public:
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typedef listview_curses::action::mem_functor_t<term_extra> lv_functor_t;
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lv_functor_t filename_wire;
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term_extra() : filename_wire(*this, &term_extra::update_title) {
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const char *term_name = getenv("TERM");
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this->te_enabled = (term_name != NULL && strstr(term_name, "xterm") != NULL);
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if (getenv("SSH_CONNECTION") != NULL) {
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char hostname[MAXHOSTNAMELEN] = "UNKNOWN";
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struct passwd *userent;
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gethostname(hostname, sizeof(hostname));
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this->te_prefix = hostname;
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if ((userent = getpwuid(getuid())) != NULL) {
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this->te_prefix = std::string(userent->pw_name) + "@" + this->te_prefix;
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}
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this->te_prefix += ":";
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}
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};
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void update_title(listview_curses *lc) {
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static const char *xterm_title_fmt = "\033]0;%s\007";
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if (!this->te_enabled) {
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return;
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}
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if (lc->get_inner_height() > 0) {
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string_attrs_t::const_iterator line_attr;
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std::vector<attr_line_t> rows(1);
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lc->get_data_source()->listview_value_for_rows(*lc, lc->get_top(), rows);
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string_attrs_t &sa = rows[0].get_attrs();
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line_attr = find_string_attr(sa, &logline::L_FILE);
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if (line_attr != sa.end()) {
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logfile *lf = (logfile *)line_attr->sa_value.sav_ptr;
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const std::string &filename = lf->get_filename();
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if (filename != this->te_last_title) {
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std::string title = this->te_prefix + filename;
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printf(xterm_title_fmt, title.c_str());
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fflush(stdout);
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this->te_last_title = filename;
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}
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return;
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}
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}
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const std::string &view_title = lc->get_title();
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if (view_title != this->te_last_title) {
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std::string title = this->te_prefix + view_title;
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printf(xterm_title_fmt, title.c_str());
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fflush(stdout);
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this->te_last_title = view_title;
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}
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};
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private:
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bool te_enabled;
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std::string te_prefix;
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std::string te_last_title;
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};
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#endif
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