separate some code from ncmpcpp.cpp
This commit is contained in:
Andrzej Rybczak
451
src/info.cpp
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451
src/info.cpp
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/***************************************************************************
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* Copyright (C) 2008-2009 by Andrzej Rybczak *
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* electricityispower@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "info.h"
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#ifdef HAVE_CURL_CURL_H
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# include <fstream>
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# include <sys/stat.h>
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# include <pthread.h>
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# include "curl/curl.h"
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# include "helpers.h"
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#endif
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#include "charset.h"
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#include "global.h"
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#include "media_library.h"
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#include "playlist_editor.h"
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#include "status_checker.h"
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#include "tag_editor.h"
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using namespace Global;
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using std::string;
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using std::vector;
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Scrollpad *Global::sInfo;
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const string artists_folder = home_folder + "/.ncmpcpp/artists";
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namespace
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{
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pthread_t artist_info_downloader;
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bool artist_info_ready = 0;
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# ifdef HAVE_CURL_CURL_H
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void *GetArtistInfo(void *);
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# endif
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void GetSongInfo(MPD::Song &, Scrollpad &);
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const basic_buffer<my_char_t> &ShowTagInInfoScreen(const string &);
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}
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void Info::Init()
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{
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sInfo = new Scrollpad(0, main_start_y, COLS, main_height, "", Config.main_color, brNone);
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sInfo->SetTimeout(ncmpcpp_window_timeout);
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}
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void Info::Resize()
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{
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sInfo->Resize(COLS, main_height);
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}
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bool Info::Ready()
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{
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if (!artist_info_ready)
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return false;
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pthread_join(artist_info_downloader, NULL);
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sInfo->Flush();
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artist_info_downloader = 0;
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artist_info_ready = 0;
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return true;
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}
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void Info::GetSong()
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{
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if (wCurrent == sInfo)
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{
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wCurrent->Hide();
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current_screen = prev_screen;
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wCurrent = wPrev;
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// redraw_screen = 1;
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redraw_header = 1;
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if (current_screen == csLibrary)
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{
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MediaLibrary::Refresh();
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}
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else if (current_screen == csPlaylistEditor)
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{
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PlaylistEditor::Refresh();
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}
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# ifdef HAVE_TAGLIB_H
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else if (current_screen == csTagEditor)
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{
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TagEditor::Refresh();
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}
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# endif // HAVE_TAGLIB_H
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}
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else if (
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(wCurrent == mPlaylist && !mPlaylist->Empty())
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|| (wCurrent == mBrowser && mBrowser->Current().type == MPD::itSong)
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|| (wCurrent == mSearcher && !mSearcher->Current().first)
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|| (wCurrent == mLibSongs && !mLibSongs->Empty())
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|| (wCurrent == mPlaylistEditor && !mPlaylistEditor->Empty())
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# ifdef HAVE_TAGLIB_H
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|| (wCurrent == mEditorTags && !mEditorTags->Empty())
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# endif // HAVE_TAGLIB_H
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)
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{
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MPD::Song *s = 0;
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size_t id = ((Menu<MPD::Song> *)wCurrent)->Choice();
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switch (current_screen)
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{
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case csPlaylist:
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s = &mPlaylist->at(id);
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break;
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case csBrowser:
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s = mBrowser->at(id).song;
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break;
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case csSearcher:
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s = mSearcher->at(id).second;
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break;
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case csLibrary:
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s = &mLibSongs->at(id);
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break;
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case csPlaylistEditor:
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s = &mPlaylistEditor->at(id);
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break;
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# ifdef HAVE_TAGLIB_H
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case csTagEditor:
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s = &mEditorTags->at(id);
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break;
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# endif // HAVE_TAGLIB_H
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default:
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break;
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}
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wPrev = wCurrent;
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wCurrent = sInfo;
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prev_screen = current_screen;
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current_screen = csInfo;
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redraw_header = 1;
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info_title = "Song info";
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sInfo->Clear();
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GetSongInfo(*s, *sInfo);
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sInfo->Flush();
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sInfo->Hide();
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}
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}
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void Info::GetArtist()
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{
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if (wCurrent == sInfo)
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{
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wCurrent->Hide();
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current_screen = prev_screen;
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wCurrent = wPrev;
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// redraw_screen = 1;
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redraw_header = 1;
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if (current_screen == csLibrary)
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{
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MediaLibrary::Refresh();
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}
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else if (current_screen == csPlaylistEditor)
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{
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PlaylistEditor::Refresh();
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}
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# ifdef HAVE_TAGLIB_H
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else if (current_screen == csTagEditor)
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{
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TagEditor::Refresh();
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}
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# endif // HAVE_TAGLIB_H
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}
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else if (
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(wCurrent == mPlaylist && !mPlaylist->Empty())
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|| (wCurrent == mBrowser && mBrowser->Current().type == MPD::itSong)
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|| (wCurrent == mSearcher && !mSearcher->Current().first)
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|| (wCurrent == mLibArtists && !mLibArtists->Empty())
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|| (wCurrent == mLibSongs && !mLibSongs->Empty())
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|| (wCurrent == mPlaylistEditor && !mPlaylistEditor->Empty())
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# ifdef HAVE_TAGLIB_H
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|| (wCurrent == mEditorTags && !mEditorTags->Empty())
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# endif // HAVE_TAGLIB_H
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)
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{
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if (artist_info_downloader)
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{
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ShowMessage("Artist's info is being downloaded...");
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return;
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}
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string *artist = new string();
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int id = ((Menu<MPD::Song> *)wCurrent)->Choice();
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switch (current_screen)
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{
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case csPlaylist:
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*artist = mPlaylist->at(id).GetArtist();
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break;
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case csBrowser:
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*artist = mBrowser->at(id).song->GetArtist();
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break;
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case csSearcher:
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*artist = mSearcher->at(id).second->GetArtist();
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break;
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case csLibrary:
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*artist = mLibArtists->at(id);
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break;
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case csPlaylistEditor:
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*artist = mPlaylistEditor->at(id).GetArtist();
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break;
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# ifdef HAVE_TAGLIB_H
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case csTagEditor:
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*artist = mEditorTags->at(id).GetArtist();
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break;
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# endif // HAVE_TAGLIB_H
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default:
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break;
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}
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if (!artist->empty())
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{
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wPrev = wCurrent;
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wCurrent = sInfo;
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prev_screen = current_screen;
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current_screen = csInfo;
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redraw_header = 1;
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info_title = "Artist's info - " + *artist;
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sInfo->Clear();
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sInfo->WriteXY(0, 0, 0, "Fetching artist's info...");
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sInfo->Refresh();
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if (!artist_info_downloader)
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{
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pthread_create(&artist_info_downloader, NULL, GetArtistInfo, artist);
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}
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}
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else
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delete artist;
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}
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}
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namespace {
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#ifdef HAVE_CURL_CURL_H
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void *GetArtistInfo(void *ptr)
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{
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string *strptr = static_cast<string *>(ptr);
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string artist = *strptr;
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delete strptr;
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locale_to_utf(artist);
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string filename = artist + ".txt";
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ToLower(filename);
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EscapeUnallowedChars(filename);
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const string fullpath = artists_folder + "/" + filename;
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mkdir(artists_folder.c_str(), 0755);
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string result;
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std::ifstream input(fullpath.c_str());
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if (input.is_open())
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{
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bool first = 1;
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string line;
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while (getline(input, line))
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{
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if (!first)
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*sInfo << "\n";
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utf_to_locale(line);
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*sInfo << line;
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first = 0;
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}
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input.close();
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sInfo->SetFormatting(fmtBold, "\n\nSimilar artists:\n", fmtBoldEnd, 0);
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sInfo->SetFormatting(Config.color2, "\n * ", clEnd);
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artist_info_ready = 1;
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pthread_exit(NULL);
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}
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CURLcode code;
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char *c_artist = curl_easy_escape(0, artist.c_str(), artist.length());
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string url = "http://ws.audioscrobbler.com/2.0/?method=artist.getinfo&artist=";
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url += c_artist;
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url += "&api_key=d94e5b6e26469a2d1ffae8ef20131b79";
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pthread_mutex_lock(&curl);
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CURL *info = curl_easy_init();
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curl_easy_setopt(info, CURLOPT_URL, url.c_str());
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curl_easy_setopt(info, CURLOPT_WRITEFUNCTION, write_data);
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curl_easy_setopt(info, CURLOPT_WRITEDATA, &result);
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curl_easy_setopt(info, CURLOPT_CONNECTTIMEOUT, 10);
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curl_easy_setopt(info, CURLOPT_NOSIGNAL, 1);
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code = curl_easy_perform(info);
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curl_easy_cleanup(info);
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pthread_mutex_unlock(&curl);
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curl_free(c_artist);
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if (code != CURLE_OK)
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{
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*sInfo << "Error while fetching artist's info: " << curl_easy_strerror(code);
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artist_info_ready = 1;
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pthread_exit(NULL);
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}
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size_t a, b;
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bool save = 1;
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a = result.find("status=\"failed\"");
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if (a != string::npos)
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{
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EscapeHtml(result);
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*sInfo << "Last.fm returned an error message: " << result;
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artist_info_ready = 1;
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pthread_exit(NULL);
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}
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vector<string> similar;
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for (size_t i = result.find("<name>"); i != string::npos; i = result.find("<name>"))
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{
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result[i] = '.';
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size_t j = result.find("</name>");
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result[j] = '.';
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i += 6;
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similar.push_back(result.substr(i, j-i));
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EscapeHtml(similar.back());
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}
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vector<string> urls;
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for (size_t i = result.find("<url>"); i != string::npos; i = result.find("<url>"))
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{
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result[i] = '.';
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size_t j = result.find("</url>");
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result[j] = '.';
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i += 5;
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urls.push_back(result.substr(i, j-i));
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}
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a = result.find("<content>")+9;
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b = result.find("</content>");
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if (a == b)
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{
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result = "No description available for this artist.";
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save = 0;
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}
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else
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{
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a += 9; // for <![CDATA[
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b -= 3; // for ]]>
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result = result.substr(a, b-a);
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}
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EscapeHtml(result);
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Trim(result);
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Buffer filebuffer;
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if (save)
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filebuffer << result;
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utf_to_locale(result);
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*sInfo << result;
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if (save)
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filebuffer << "\n\nSimilar artists:\n";
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*sInfo << fmtBold << "\n\nSimilar artists:\n" << fmtBoldEnd;
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for (size_t i = 1; i < similar.size(); i++)
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{
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if (save)
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filebuffer << "\n * " << similar[i] << " (" << urls[i] << ")";
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utf_to_locale(similar[i]);
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utf_to_locale(urls[i]);
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*sInfo << "\n" << Config.color2 << " * " << clEnd << similar[i] << " (" << urls[i] << ")";
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}
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if (save)
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filebuffer << "\n\n" << urls.front();
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utf_to_locale(urls.front());
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*sInfo << "\n\n" << urls.front();
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if (save)
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{
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std::ofstream output(fullpath.c_str());
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if (output.is_open())
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{
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output << filebuffer.Str();
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output.close();
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}
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}
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artist_info_ready = 1;
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pthread_exit(NULL);
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}
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#endif // HVAE_CURL_CURL_H
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void GetSongInfo(MPD::Song &s, Scrollpad &info)
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{
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# ifdef HAVE_TAGLIB_H
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string path_to_file;
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if (s.IsFromDB())
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path_to_file += Config.mpd_music_dir;
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path_to_file += s.GetFile();
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TagLib::FileRef f(path_to_file.c_str());
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if (!f.isNull())
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s.SetComment(f.tag()->comment().to8Bit(1));
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# endif // HAVE_TAGLIB_H
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info << fmtBold << Config.color1 << "Filename: " << fmtBoldEnd << Config.color2 << s.GetName() << "\n" << clEnd;
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info << fmtBold << "Directory: " << fmtBoldEnd << Config.color2 << ShowTagInInfoScreen(s.GetDirectory()) << "\n\n" << clEnd;
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info << fmtBold << "Length: " << fmtBoldEnd << Config.color2 << s.GetLength() << "\n" << clEnd;
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# ifdef HAVE_TAGLIB_H
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if (!f.isNull())
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{
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info << fmtBold << "Bitrate: " << fmtBoldEnd << Config.color2 << f.audioProperties()->bitrate() << " kbps\n" << clEnd;
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info << fmtBold << "Sample rate: " << fmtBoldEnd << Config.color2 << f.audioProperties()->sampleRate() << " Hz\n" << clEnd;
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info << fmtBold << "Channels: " << fmtBoldEnd << Config.color2 << (f.audioProperties()->channels() == 1 ? "Mono" : "Stereo") << "\n" << clDefault;
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}
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else
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info << clDefault;
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# endif // HAVE_TAGLIB_H
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info << fmtBold << "\nTitle: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetTitle());
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info << fmtBold << "\nArtist: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetArtist());
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info << fmtBold << "\nAlbum: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetAlbum());
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info << fmtBold << "\nYear: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetYear());
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info << fmtBold << "\nTrack: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetTrack());
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info << fmtBold << "\nGenre: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetGenre());
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info << fmtBold << "\nComposer: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetComposer());
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info << fmtBold << "\nPerformer: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetPerformer());
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info << fmtBold << "\nDisc: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetDisc());
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info << fmtBold << "\nComment: " << fmtBoldEnd << ShowTagInInfoScreen(s.GetComment());
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}
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const basic_buffer<my_char_t> &ShowTagInInfoScreen(const string &tag)
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{
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# ifdef _UTF8
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static WBuffer result;
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result.Clear();
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if (tag.empty())
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result << Config.empty_tags_color << ToWString(Config.empty_tag) << clEnd;
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else
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result << ToWString(tag);
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return result;
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# else
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return ShowTag(tag);
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# endif
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}
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}
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