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/* ncmpc (Ncurses MPD Client)
* (c) 2004-2018 The Music Player Daemon Project
* Project homepage: http://musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "screen_find.hxx"
#include "screen_utils.hxx"
#include "screen_status.hxx"
#include "screen.hxx"
#include "ListWindow.hxx"
#include "keyboard.hxx"
#include "i18n.h"
#include "Options.hxx"
#include "util/LocaleString.hxx"
#include <ctype.h>
#define FIND_PROMPT _("Find")
#define RFIND_PROMPT _("Find backward")
#define JUMP_PROMPT _("Jump")
/* query user for a string and find it in a list window */
bool
screen_find(ScreenManager &screen, ListWindow &lw, Command findcmd,
const ListText &text) noexcept
{
bool found;
const char *prompt = FIND_PROMPT;
const bool reversed =
findcmd == Command::LIST_RFIND ||
findcmd == Command::LIST_RFIND_NEXT;
if (reversed)
prompt = RFIND_PROMPT;
switch (findcmd) {
case Command::LIST_FIND:
case Command::LIST_RFIND:
screen.findbuf.clear();
/* fall through */
case Command::LIST_FIND_NEXT:
case Command::LIST_RFIND_NEXT:
if (screen.findbuf.empty()) {
char *value = options.find_show_last_pattern
? (char *) -1 : nullptr;
screen.findbuf=screen_readln(prompt,
value,
&screen.find_history,
nullptr);
}
if (screen.findbuf.empty())
return true;
found = reversed
? lw.ReverseFind(text,
screen.findbuf.c_str(),
options.find_wrap,
options.bell_on_wrap)
: lw.Find(text,
screen.findbuf.c_str(),
options.find_wrap,
options.bell_on_wrap);
if (!found) {
screen_status_printf(_("Unable to find \'%s\'"),
screen.findbuf.c_str());
screen_bell();
}
return true;
default:
break;
}
return false;
}
/* query user for a string and jump to the entry
* which begins with this string while the users types */
void
screen_jump(ScreenManager &screen, ListWindow &lw,
const ListText &text,
const ListRenderer &renderer) noexcept
{
constexpr size_t WRLN_MAX_LINE_SIZE = 1024;
int key = 65;
char buffer[WRLN_MAX_LINE_SIZE];
/* In screen.findbuf is the whole string which is displayed in the status_window
* and search_str is the string the user entered (without the prompt) */
char *search_str = buffer + snprintf(buffer, WRLN_MAX_LINE_SIZE, "%s: ", JUMP_PROMPT);
char *iter = search_str;
while(1) {
key = screen_getch(buffer);
/* if backspace or delete was pressed, process instead of ending loop */
if (key == KEY_BACKSPACE || key == KEY_DC) {
const char *prev = PrevCharMB(buffer, iter);
if (search_str <= prev)
iter = const_cast<char *>(prev);
*iter = '\0';
continue;
}
/* if a control key was pressed, end loop */
else if (iscntrl(key) || key == KEY_NPAGE || key == KEY_PPAGE) {
break;
}
else if (iter < buffer + WRLN_MAX_LINE_SIZE - 3) {
*iter++ = key;
*iter = '\0';
}
lw.Jump(text, search_str);
/* repaint the list_window */
lw.Paint(renderer);
wrefresh(lw.w);
}
screen.findbuf = search_str;
/* ncmpc should get the command */
keyboard_unread(screen.get_io_service(), key);
}
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