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lnav/src/top_status_source.cc

123 lines
4.2 KiB
C++

/**
* Copyright (c) 2020, 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 "top_status_source.hh"
#include "config.h"
#include "lnav.hh"
#include "md2attr_line.hh"
#include "md4cpp.hh"
#include "shlex.hh"
#include "sqlitepp.client.hh"
#include "top_status_source.cfg.hh"
static const char* MSG_QUERY = R"(
SELECT message FROM lnav_user_notifications
WHERE message IS NOT NULL AND
(expiration IS NULL OR expiration > datetime('now')) AND
(views IS NULL OR
json_contains(views, (SELECT name FROM lnav_top_view)))
ORDER BY priority DESC, expiration ASC
LIMIT 1
)";
top_status_source::top_status_source(auto_sqlite3& db,
const top_status_source_cfg& cfg)
: tss_config(cfg),
tss_user_msgs_stmt(prepare_stmt(db.in(), MSG_QUERY).unwrap())
{
this->tss_fields[TSF_TIME].set_width(28);
this->tss_fields[TSF_TIME].set_role(role_t::VCR_STATUS_INFO);
this->tss_fields[TSF_USER_MSG].set_share(1);
this->tss_fields[TSF_USER_MSG].right_justify(true);
this->tss_fields[TSF_USER_MSG].set_role(role_t::VCR_STATUS_INFO);
}
void
top_status_source::update_time(const timeval& current_time)
{
auto& sf = this->tss_fields[TSF_TIME];
char buffer[32];
tm current_tm;
buffer[0] = ' ';
strftime(&buffer[1],
sizeof(buffer) - 1,
this->tss_config.tssc_clock_format.c_str(),
localtime_r(&current_time.tv_sec, &current_tm));
sf.set_value(buffer);
}
void
top_status_source::update_time()
{
struct timeval tv;
gettimeofday(&tv, nullptr);
this->update_time(tv);
}
void
top_status_source::update_user_msg()
{
auto& al = this->tss_fields[TSF_USER_MSG].get_value();
al.clear();
this->tss_user_msgs_stmt.reset();
auto fetch_res = this->tss_user_msgs_stmt.fetch_row<std::string>();
fetch_res.match(
[&al](const std::string& value) {
shlex lexer(value);
std::string user_note;
lexer.with_ignore_quotes(true).eval(
user_note,
scoped_resolver{&lnav_data.ld_exec_context.ec_global_vars});
md2attr_line mdal;
auto parse_res = md4cpp::parse(user_note, mdal);
if (parse_res.isOk()) {
al = parse_res.unwrap();
} else {
log_error("failed to parse user note as markdown: %s",
parse_res.unwrapErr().c_str());
al = user_note;
}
scrub_ansi_string(al.get_string(), &al.get_attrs());
al.append(" ");
},
[](const prepared_stmt::end_of_rows&) {},
[](const prepared_stmt::fetch_error& fe) {
log_error("failed to execute user-message expression: %s",
fe.fe_msg.c_str());
});
this->tss_user_msgs_stmt.reset();
}