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Copy pathsearch_engine.cpp
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651 lines (594 loc) · 17.8 KB
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/***************************************************************************
* Copyright (C) 2008-2014 by Andrzej Rybczak *
* *
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <array>
#include <boost/bind.hpp>
#include <iomanip>
#include "display.h"
#include "global.h"
#include "helpers.h"
#include "playlist.h"
#include "regex_filter.h"
#include "search_engine.h"
#include "settings.h"
#include "status.h"
#include "statusbar.h"
#include "utility/comparators.h"
#include "title.h"
#include "screen_switcher.h"
using Global::MainHeight;
using Global::MainStartY;
SearchEngine *mySearcher;
namespace {//
/*const std::array<const std::string, 11> constraintsNames = {{
"Any",
"Artist",
"Album Artist",
"Title",
"Album",
"Filename",
"Composer",
"Performer",
"Genre",
"Date",
"Comment"
}};
const std::array<const char *, 3> searchModes = {{
"Match if tag contains searched phrase (no regexes)",
"Match if tag contains searched phrase (regexes supported)",
"Match only if both values are the same"
}};
namespace pos {//
const size_t searchIn = constraintsNames.size()-1+1+1; // separated
const size_t searchMode = searchIn+1;
const size_t search = searchMode+1+1; // separated
const size_t reset = search+1;
}*/
std::string SEItemToString(const SEItem &ei);
bool SEItemEntryMatcher(const boost::regex &rx, const NC::Menu<SEItem>::Item &item, bool filter);
}
const char *SearchEngine::ConstraintsNames[] =
{
"Any",
"Artist",
"Album Artist",
"Title",
"Album",
"Filename",
"Composer",
"Performer",
"Genre",
"Date",
"Comment"
};
const char *SearchEngine::SearchModes[] =
{
"Match if tag contains searched phrase (no regexes)",
"Match if tag contains searched phrase (regexes supported)",
"Match only if both values are the same",
0
};
size_t SearchEngine::StaticOptions = 20;
size_t SearchEngine::ResetButton = 16;
size_t SearchEngine::SearchButton = 15;
SearchEngine::SearchEngine()
: Screen(NC::Menu<SEItem>(0, MainStartY, COLS, MainHeight, "", Config.main_color, NC::Border::None))
{
w.setHighlightColor(Config.main_highlight_color);
w.cyclicScrolling(Config.use_cyclic_scrolling);
w.centeredCursor(Config.centered_cursor);
w.setItemDisplayer(boost::bind(Display::SEItems, _1, proxySongList()));
w.setSelectedPrefix(Config.selected_item_prefix);
w.setSelectedSuffix(Config.selected_item_suffix);
SearchMode = &SearchModes[Config.search_engine_default_search_mode];
}
void SearchEngine::resize()
{
size_t x_offset, width;
getWindowResizeParams(x_offset, width);
w.resize(width, MainHeight);
w.moveTo(x_offset, MainStartY);
switch (Config.search_engine_display_mode)
{
case DisplayMode::Columns:
if (Config.titles_visibility)
{
w.setTitle(Display::Columns(w.getWidth()));
break;
}
case DisplayMode::Classic:
w.setTitle("");
}
hasToBeResized = 0;
}
void SearchEngine::switchTo()
{
SwitchTo::execute(this);
if (w.empty())
Prepare();
markSongsInPlaylist(proxySongList());
drawHeader();
}
std::wstring SearchEngine::title()
{
return L"Search engine";
}
void SearchEngine::enterPressed()
{
size_t option = w.choice();
if (option > ConstraintsNumber && option < SearchButton)
w.current().value().buffer().clear();
if (option < SearchButton)
Statusbar::lock();
if (option < ConstraintsNumber)
{
std::string constraint = ConstraintsNames[option];
Statusbar::put() << NC::Format::Bold << constraint << NC::Format::NoBold << ": ";
itsConstraints[option] = Global::wFooter->getString(itsConstraints[option]);
w.current().value().buffer().clear();
constraint.resize(13, ' ');
w.current().value().buffer() << NC::Format::Bold << constraint << NC::Format::NoBold << ": ";
ShowTag(w.current().value().buffer(), itsConstraints[option]);
}
else if (option == ConstraintsNumber+1)
{
Config.search_in_db = !Config.search_in_db;
w.current().value().buffer() << NC::Format::Bold << "Search in:" << NC::Format::NoBold << ' ' << (Config.search_in_db ? "Database" : "Current playlist");
}
else if (option == ConstraintsNumber+2)
{
if (!*++SearchMode)
SearchMode = &SearchModes[0];
w.current().value().buffer() << NC::Format::Bold << "Search mode:" << NC::Format::NoBold << ' ' << *SearchMode;
}
else if (option == SearchButton)
{
w.showAll();
Statusbar::print("Searching...");
if (w.size() > StaticOptions)
Prepare();
Search();
if (w.back().value().isSong())
{
if (Config.search_engine_display_mode == DisplayMode::Columns)
w.setTitle(Config.titles_visibility ? Display::Columns(w.getWidth()) : "");
size_t found = w.size()-SearchEngine::StaticOptions;
found += 3; // don't count options inserted below
w.insertSeparator(ResetButton+1);
w.insertItem(ResetButton+2, SEItem(), 1, 1);
w.at(ResetButton+2).value().mkBuffer() << Config.color1 << "Search results: " << Config.color2 << "Found " << found << (found > 1 ? " songs" : " song") << NC::Color::Default;
w.insertSeparator(ResetButton+3);
markSongsInPlaylist(proxySongList());
Statusbar::print("Searching finished");
if (Config.block_search_constraints_change)
for (size_t i = 0; i < StaticOptions-4; ++i)
w.at(i).setInactive(true);
w.scroll(NC::Scroll::Down);
w.scroll(NC::Scroll::Down);
}
else
Statusbar::print("No results found");
}
else if (option == ResetButton)
{
reset();
}
else
addSongToPlaylist(w.current().value().song(), true);
if (option < SearchButton)
Statusbar::unlock();
}
void SearchEngine::spacePressed()
{
if (!w.current().value().isSong())
return;
if (Config.space_selects)
{
w.current().setSelected(!w.current().isSelected());
w.scroll(NC::Scroll::Down);
return;
}
addSongToPlaylist(w.current().value().song(), false);
w.scroll(NC::Scroll::Down);
}
void SearchEngine::mouseButtonPressed(MEVENT me)
{
if (w.empty() || !w.hasCoords(me.x, me.y) || size_t(me.y) >= w.size())
return;
if (me.bstate & (BUTTON1_PRESSED | BUTTON3_PRESSED))
{
if (!w.Goto(me.y))
return;
w.refresh();
if ((me.bstate & BUTTON3_PRESSED || w.choice() > ConstraintsNumber) && w.choice() < StaticOptions)
enterPressed();
else if (w.choice() >= StaticOptions)
{
if (me.bstate & BUTTON1_PRESSED)
{
size_t pos = w.choice();
spacePressed();
if (pos < w.size()-1)
w.scroll(NC::Scroll::Up);
}
else
enterPressed();
}
}
else
Screen<WindowType>::mouseButtonPressed(me);
}
/***********************************************************************/
bool SearchEngine::allowsFiltering()
{
return w.back().value().isSong();
}
std::string SearchEngine::currentFilter()
{
return RegexItemFilter<SEItem>::currentFilter(w);
}
void SearchEngine::applyFilter(const std::string &filter)
{
if (filter.empty())
{
w.clearFilter();
w.clearFilterResults();
return;
}
try
{
w.showAll();
auto fun = boost::bind(SEItemEntryMatcher, _1, _2, true);
auto rx = RegexItemFilter<SEItem>(
boost::regex(filter, Config.regex_type), fun);
w.filter(w.begin(), w.end(), rx);
}
catch (boost::bad_expression &) { }
}
/***********************************************************************/
bool SearchEngine::allowsSearching()
{
return w.back().value().isSong();
}
bool SearchEngine::search(const std::string &constraint)
{
if (constraint.empty())
{
w.clearSearchResults();
return false;
}
try
{
auto fun = boost::bind(SEItemEntryMatcher, _1, _2, false);
auto rx = RegexItemFilter<SEItem>(
boost::regex(constraint, Config.regex_type), fun);
return w.search(w.begin(), w.end(), rx);
}
catch (boost::bad_expression &)
{
return false;
}
}
void SearchEngine::nextFound(bool wrap)
{
w.nextFound(wrap);
}
void SearchEngine::prevFound(bool wrap)
{
w.prevFound(wrap);
}
/***********************************************************************/
ProxySongList SearchEngine::proxySongList()
{
return ProxySongList(w, [](NC::Menu<SEItem>::Item &item) -> MPD::Song * {
MPD::Song *ptr = 0;
if (!item.isSeparator() && item.value().isSong())
ptr = &item.value().song();
return ptr;
});
}
bool SearchEngine::allowsSelection()
{
return w.current().value().isSong();
}
void SearchEngine::reverseSelection()
{
reverseSelectionHelper(w.begin()+std::min(StaticOptions, w.size()), w.end());
}
MPD::SongList SearchEngine::getSelectedSongs()
{
MPD::SongList result;
for (auto it = w.begin(); it != w.end(); ++it)
{
if (it->isSelected())
{
assert(it->value().isSong());
result.push_back(it->value().song());
}
}
// if no item is selected, add current one
if (result.empty() && !w.empty())
{
assert(w.current().value().isSong());
result.push_back(w.current().value().song());
}
return result;
}
/***********************************************************************/
void SearchEngine::Prepare()
{
w.setTitle("");
w.clear();
w.resizeList(StaticOptions-3);
w.at(ConstraintsNumber).setSeparator(true);
w.at(SearchButton-1).setSeparator(true);
for (size_t i = 0; i < ConstraintsNumber; ++i)
{
std::string constraint = ConstraintsNames[i];
constraint.resize(13, ' ');
w[i].value().mkBuffer() << NC::Format::Bold << constraint << NC::Format::NoBold << ": ";
ShowTag(w[i].value().buffer(), itsConstraints[i]);
}
w.at(ConstraintsNumber+1).value().mkBuffer() << NC::Format::Bold << "Search in:" << NC::Format::NoBold << ' ' << (Config.search_in_db ? "Database" : "Current playlist");
w.at(ConstraintsNumber+2).value().mkBuffer() << NC::Format::Bold << "Search mode:" << NC::Format::NoBold << ' ' << *SearchMode;
w.at(SearchButton).value().mkBuffer() << "Search";
w.at(ResetButton).value().mkBuffer() << "Reset";
}
void SearchEngine::reset()
{
for (size_t i = 0; i < ConstraintsNumber; ++i)
itsConstraints[i].clear();
w.reset();
Prepare();
Statusbar::print("Search state reset");
}
void SearchEngine::Search()
{
bool constraints_empty = 1;
for (size_t i = 0; i < ConstraintsNumber; ++i)
{
if (!itsConstraints[i].empty())
{
constraints_empty = 0;
break;
}
}
if (constraints_empty)
return;
if (Config.search_in_db && (SearchMode == &SearchModes[0] || SearchMode == &SearchModes[2])) // use built-in mpd searching
{
Mpd.StartSearch(SearchMode == &SearchModes[2]);
if (!itsConstraints[0].empty())
Mpd.AddSearchAny(itsConstraints[0]);
if (!itsConstraints[1].empty())
Mpd.AddSearch(MPD_TAG_ARTIST, itsConstraints[1]);
if (!itsConstraints[2].empty())
Mpd.AddSearch(MPD_TAG_ALBUM_ARTIST, itsConstraints[2]);
if (!itsConstraints[3].empty())
Mpd.AddSearch(MPD_TAG_TITLE, itsConstraints[3]);
if (!itsConstraints[4].empty())
Mpd.AddSearch(MPD_TAG_ALBUM, itsConstraints[4]);
if (!itsConstraints[5].empty())
Mpd.AddSearchURI(itsConstraints[5]);
if (!itsConstraints[6].empty())
Mpd.AddSearch(MPD_TAG_COMPOSER, itsConstraints[6]);
if (!itsConstraints[7].empty())
Mpd.AddSearch(MPD_TAG_PERFORMER, itsConstraints[7]);
if (!itsConstraints[8].empty())
Mpd.AddSearch(MPD_TAG_GENRE, itsConstraints[8]);
if (!itsConstraints[9].empty())
Mpd.AddSearch(MPD_TAG_DATE, itsConstraints[9]);
if (!itsConstraints[10].empty())
Mpd.AddSearch(MPD_TAG_COMMENT, itsConstraints[10]);
Mpd.CommitSearchSongs([this](MPD::Song s) {
w.addItem(s);
});
return;
}
MPD::SongList list;
if (Config.search_in_db)
Mpd.GetDirectoryRecursive("/", vectorMoveInserter(list));
else
list.insert(list.end(), myPlaylist->main().beginV(), myPlaylist->main().endV());
bool any_found = 1;
bool found = 1;
LocaleStringComparison cmp(std::locale(), Config.ignore_leading_the);
for (auto it = list.begin(); it != list.end(); ++it)
{
if (SearchMode != &SearchModes[2]) // match to pattern
{
boost::regex rx;
if (!itsConstraints[0].empty())
{
try
{
rx.assign(itsConstraints[0], Config.regex_type);
any_found =
boost::regex_search(it->getArtist(), rx)
|| boost::regex_search(it->getAlbumArtist(), rx)
|| boost::regex_search(it->getTitle(), rx)
|| boost::regex_search(it->getAlbum(), rx)
|| boost::regex_search(it->getName(), rx)
|| boost::regex_search(it->getComposer(), rx)
|| boost::regex_search(it->getPerformer(), rx)
|| boost::regex_search(it->getGenre(), rx)
|| boost::regex_search(it->getDate(), rx)
|| boost::regex_search(it->getComment(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[1].empty())
{
try
{
rx.assign(itsConstraints[1], Config.regex_type);
found = boost::regex_search(it->getArtist(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[2].empty())
{
try
{
rx.assign(itsConstraints[2], Config.regex_type);
found = boost::regex_search(it->getAlbumArtist(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[3].empty())
{
try
{
rx.assign(itsConstraints[3], Config.regex_type);
found = boost::regex_search(it->getTitle(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[4].empty())
{
try
{
rx.assign(itsConstraints[4], Config.regex_type);
found = boost::regex_search(it->getAlbum(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[5].empty())
{
try
{
rx.assign(itsConstraints[5], Config.regex_type);
found = boost::regex_search(it->getName(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[6].empty())
{
try
{
rx.assign(itsConstraints[6], Config.regex_type);
found = boost::regex_search(it->getComposer(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[7].empty())
{
try
{
rx.assign(itsConstraints[7], Config.regex_type);
found = boost::regex_search(it->getPerformer(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && itsConstraints[8].empty())
{
try
{
rx.assign(itsConstraints[8], Config.regex_type);
found = boost::regex_search(it->getGenre(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[9].empty())
{
try
{
rx.assign(itsConstraints[9], Config.regex_type);
found = boost::regex_search(it->getDate(), rx);
}
catch (boost::bad_expression &) { }
}
if (found && !itsConstraints[10].empty())
{
try
{
rx.assign(itsConstraints[10], Config.regex_type);
found = boost::regex_search(it->getComment(), rx);
}
catch (boost::bad_expression &) { }
}
}
else // match only if values are equal
{
if (!itsConstraints[0].empty())
any_found =
!cmp(it->getArtist(), itsConstraints[0])
|| !cmp(it->getAlbumArtist(), itsConstraints[0])
|| !cmp(it->getTitle(), itsConstraints[0])
|| !cmp(it->getAlbum(), itsConstraints[0])
|| !cmp(it->getName(), itsConstraints[0])
|| !cmp(it->getComposer(), itsConstraints[0])
|| !cmp(it->getPerformer(), itsConstraints[0])
|| !cmp(it->getGenre(), itsConstraints[0])
|| !cmp(it->getDate(), itsConstraints[0])
|| !cmp(it->getComment(), itsConstraints[0]);
if (found && !itsConstraints[1].empty())
found = !cmp(it->getArtist(), itsConstraints[1]);
if (found && !itsConstraints[2].empty())
found = !cmp(it->getAlbumArtist(), itsConstraints[2]);
if (found && !itsConstraints[3].empty())
found = !cmp(it->getTitle(), itsConstraints[3]);
if (found && !itsConstraints[4].empty())
found = !cmp(it->getAlbum(), itsConstraints[4]);
if (found && !itsConstraints[5].empty())
found = !cmp(it->getName(), itsConstraints[5]);
if (found && !itsConstraints[6].empty())
found = !cmp(it->getComposer(), itsConstraints[6]);
if (found && !itsConstraints[7].empty())
found = !cmp(it->getPerformer(), itsConstraints[7]);
if (found && !itsConstraints[8].empty())
found = !cmp(it->getGenre(), itsConstraints[8]);
if (found && !itsConstraints[9].empty())
found = !cmp(it->getDate(), itsConstraints[9]);
if (found && !itsConstraints[10].empty())
found = !cmp(it->getComment(), itsConstraints[10]);
}
if (found && any_found)
w.addItem(*it);
found = 1;
any_found = 1;
}
}
namespace {//
std::string SEItemToString(const SEItem &ei)
{
std::string result;
if (ei.isSong())
{
switch (Config.search_engine_display_mode)
{
case DisplayMode::Classic:
result = ei.song().toString(Config.song_list_format_dollar_free, Config.tags_separator);
break;
case DisplayMode::Columns:
result = ei.song().toString(Config.song_in_columns_to_string_format, Config.tags_separator);
break;
}
}
else
result = ei.buffer().str();
return result;
}
bool SEItemEntryMatcher(const boost::regex &rx, const NC::Menu<SEItem>::Item &item, bool filter)
{
if (item.isSeparator() || !item.value().isSong())
return filter;
return boost::regex_search(SEItemToString(item.value()), rx);
}
}