swaroop: populate playlist after recovery from crash.
[dcpomatic.git] / src / wx / swaroop_controls.cc
1 /*
2     Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
3
4     This file is part of DCP-o-matic.
5
6     DCP-o-matic is free software; you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by
8     the Free Software Foundation; either version 2 of the License, or
9     (at your option) any later version.
10
11     DCP-o-matic is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14     GNU General Public License for more details.
15
16     You should have received a copy of the GNU General Public License
17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
18
19 */
20
21 #include "swaroop_controls.h"
22 #include "film_viewer.h"
23 #include "wx_util.h"
24 #include "content_view.h"
25 #include "dcpomatic_button.h"
26 #include "static_text.h"
27 #include "lib/player_video.h"
28 #include "lib/dcp_content.h"
29 #include "lib/cross.h"
30 #include "lib/scoped_temporary.h"
31 #include "lib/internet.h"
32 #include <dcp/raw_convert.h>
33 #include <dcp/exceptions.h>
34 #include <wx/listctrl.h>
35 #include <wx/progdlg.h>
36
37 using std::string;
38 using std::cout;
39 using std::exception;
40 using std::sort;
41 using boost::shared_ptr;
42 using boost::dynamic_pointer_cast;
43 using boost::optional;
44
45 SwaroopControls::SwaroopControls (wxWindow* parent, shared_ptr<FilmViewer> viewer)
46         : Controls (parent, viewer, false)
47         , _play_button (new Button(this, _("Play")))
48         , _pause_button (new Button(this, _("Pause")))
49         , _stop_button (new Button(this, _("Stop")))
50         , _next_button (new Button(this, "Next"))
51         , _previous_button (new Button(this, "Previous"))
52         , _current_disable_timeline (false)
53         , _current_disable_next (false)
54 {
55         _button_sizer->Add (_previous_button, 0, wxEXPAND);
56         _button_sizer->Add (_play_button, 0, wxEXPAND);
57         _button_sizer->Add (_pause_button, 0, wxEXPAND);
58         _button_sizer->Add (_stop_button, 0, wxEXPAND);
59         _button_sizer->Add (_next_button, 0, wxEXPAND);
60
61         _spl_view = new wxListCtrl (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_REPORT | wxLC_NO_HEADER);
62         _spl_view->AppendColumn (wxT(""), wxLIST_FORMAT_LEFT, 740);
63
64         wxBoxSizer* left_sizer = new wxBoxSizer (wxVERTICAL);
65         wxBoxSizer* e_sizer = new wxBoxSizer (wxHORIZONTAL);
66
67         wxFont subheading_font (*wxNORMAL_FONT);
68         subheading_font.SetWeight (wxFONTWEIGHT_BOLD);
69
70         wxBoxSizer* spl_header = new wxBoxSizer (wxHORIZONTAL);
71         {
72                 wxStaticText* m = new StaticText (this, "Playlists");
73                 m->SetFont (subheading_font);
74                 spl_header->Add (m, 1, wxALIGN_CENTER_VERTICAL);
75         }
76         _refresh_spl_view = new Button (this, "Refresh");
77         spl_header->Add (_refresh_spl_view, 0, wxBOTTOM, DCPOMATIC_SIZER_GAP / 2);
78
79         left_sizer->Add (spl_header, 0, wxLEFT | wxRIGHT | wxEXPAND, DCPOMATIC_SIZER_GAP);
80         left_sizer->Add (_spl_view, 1, wxLEFT | wxRIGHT | wxBOTTOM | wxEXPAND, DCPOMATIC_SIZER_GAP);
81
82         _content_view = new ContentView (this);
83
84         wxBoxSizer* content_header = new wxBoxSizer (wxHORIZONTAL);
85         {
86                 wxStaticText* m = new StaticText (this, "Content");
87                 m->SetFont (subheading_font);
88                 content_header->Add (m, 1, wxALIGN_CENTER_VERTICAL);
89         }
90         _refresh_content_view = new Button (this, "Refresh");
91         content_header->Add (_refresh_content_view, 0, wxBOTTOM, DCPOMATIC_SIZER_GAP / 2);
92
93         left_sizer->Add (content_header, 0, wxTOP | wxLEFT | wxRIGHT | wxEXPAND, DCPOMATIC_SIZER_GAP);
94         left_sizer->Add (_content_view, 1, wxLEFT | wxRIGHT | wxBOTTOM | wxEXPAND, DCPOMATIC_SIZER_GAP);
95
96         _current_spl_view = new wxListCtrl (this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_REPORT | wxLC_NO_HEADER);
97         _current_spl_view->AppendColumn (wxT(""), wxLIST_FORMAT_LEFT, 500);
98         _current_spl_view->AppendColumn (wxT(""), wxLIST_FORMAT_LEFT, 80);
99         e_sizer->Add (left_sizer, 1, wxALL | wxEXPAND, DCPOMATIC_SIZER_GAP);
100         e_sizer->Add (_current_spl_view, 1, wxALL | wxEXPAND, DCPOMATIC_SIZER_GAP);
101
102         _v_sizer->Add (e_sizer, 1, wxEXPAND);
103
104         _log = new wxTextCtrl (this, wxID_ANY, wxT(""), wxDefaultPosition, wxSize(-1, 200), wxTE_READONLY | wxTE_MULTILINE);
105         _v_sizer->Add (_log, 0, wxALL | wxEXPAND, DCPOMATIC_SIZER_GAP);
106
107         _play_button->Bind     (wxEVT_BUTTON, boost::bind(&SwaroopControls::play_clicked,  this));
108         _pause_button->Bind    (wxEVT_BUTTON, boost::bind(&SwaroopControls::pause_clicked, this));
109         _stop_button->Bind     (wxEVT_BUTTON, boost::bind(&SwaroopControls::stop_clicked,  this));
110         _next_button->Bind     (wxEVT_BUTTON, boost::bind(&SwaroopControls::next_clicked,  this));
111         _previous_button->Bind (wxEVT_BUTTON, boost::bind(&SwaroopControls::previous_clicked,  this));
112         _spl_view->Bind        (wxEVT_LIST_ITEM_SELECTED,   boost::bind(&SwaroopControls::spl_selection_changed, this));
113         _spl_view->Bind        (wxEVT_LIST_ITEM_DESELECTED, boost::bind(&SwaroopControls::spl_selection_changed, this));
114         _viewer->Finished.connect (boost::bind(&SwaroopControls::viewer_finished, this));
115         _viewer->PositionChanged.connect (boost::bind(&SwaroopControls::viewer_position_changed, this));
116         _refresh_spl_view->Bind (wxEVT_BUTTON, boost::bind(&SwaroopControls::update_playlist_directory, this));
117         _refresh_content_view->Bind (wxEVT_BUTTON, boost::bind(&ContentView::update, _content_view));
118
119         _content_view->update ();
120         update_playlist_directory ();
121 }
122
123 void
124 SwaroopControls::check_restart ()
125 {
126         FILE* f = fopen_boost (Config::path("position"), "r");
127         if (!f) {
128                 return;
129         }
130
131         char id[64];
132         int index;
133         int64_t time;
134         fscanf (f, "%63s %d %ld", id, &index, &time);
135
136         for (size_t i = 0; i < _playlists.size(); ++i) {
137                 if (_playlists[i].id() == id) {
138                         select_playlist (i, index);
139                         update_current_content ();
140                         _viewer->seek (DCPTime(time), false);
141                         _viewer->start ();
142                 }
143         }
144
145         fclose (f);
146 }
147
148 void
149 SwaroopControls::viewer_position_changed ()
150 {
151         if (!_selected_playlist || !_viewer->playing() || _viewer->position().get() % DCPTime::HZ) {
152                 return;
153         }
154
155         FILE* f = fopen_boost (Config::path("position"), "w");
156         if (f) {
157                 string const p = _playlists[*_selected_playlist].id()
158                         + " " + dcp::raw_convert<string>(_selected_playlist_position)
159                         + " " + dcp::raw_convert<string>(_viewer->position().get());
160
161                 checked_fwrite (p.c_str(), p.length(), f, Config::path("position"));
162                 fclose (f);
163         }
164 }
165
166 void
167 SwaroopControls::started ()
168 {
169         Controls::started ();
170         _play_button->Enable (false);
171         _pause_button->Enable (true);
172 }
173
174 void
175 SwaroopControls::stopped ()
176 {
177         Controls::stopped ();
178         _play_button->Enable (true);
179         _pause_button->Enable (false);
180 }
181
182 void
183 SwaroopControls::play_clicked ()
184 {
185         _viewer->start ();
186 }
187
188 void
189 SwaroopControls::setup_sensitivity ()
190 {
191         Controls::setup_sensitivity ();
192         bool const active_job = _active_job && *_active_job != "examine_content";
193         bool const c = _film && !_film->content().empty() && !active_job;
194         _play_button->Enable (c && !_viewer->playing());
195         _pause_button->Enable (_viewer->playing());
196         _slider->Enable (!_current_disable_timeline);
197         _spl_view->Enable (!_viewer->playing());
198         _next_button->Enable (!_current_disable_next && can_do_next());
199         _previous_button->Enable (can_do_previous());
200 }
201
202 void
203 SwaroopControls::pause_clicked ()
204 {
205         _viewer->stop ();
206 }
207
208 void
209 SwaroopControls::stop_clicked ()
210 {
211         _viewer->stop ();
212         _viewer->seek (DCPTime(), true);
213         if (_selected_playlist) {
214                 _selected_playlist_position = 0;
215                 update_current_content ();
216         }
217 }
218
219 bool
220 SwaroopControls::can_do_previous ()
221 {
222         return _selected_playlist && (_selected_playlist_position - 1) >= 0;
223 }
224
225 void
226 SwaroopControls::previous_clicked ()
227 {
228         if (!can_do_previous ()) {
229                 return;
230         }
231
232         _selected_playlist_position--;
233         update_current_content ();
234 }
235
236 bool
237 SwaroopControls::can_do_next ()
238 {
239         return _selected_playlist && (_selected_playlist_position + 1) < int(_playlists[*_selected_playlist].get().size());
240 }
241
242 void
243 SwaroopControls::next_clicked ()
244 {
245         if (!can_do_next ()) {
246                 return;
247         }
248
249         _selected_playlist_position++;
250         update_current_content ();
251 }
252
253 void
254 SwaroopControls::log (wxString s)
255 {
256         struct timeval time;
257         gettimeofday (&time, 0);
258         char buffer[64];
259         time_t const sec = time.tv_sec;
260         struct tm* t = localtime (&sec);
261         strftime (buffer, 64, "%c", t);
262         wxString ts = std_to_wx(string(buffer)) + N_(": ");
263         _log->SetValue(_log->GetValue() + ts + s + "\n");
264
265         optional<boost::filesystem::path> log = Config::instance()->player_log_file();
266         if (!log) {
267                 return;
268         }
269
270         FILE* f = fopen_boost (*log, "a");
271         fprintf (f, "%s%s\n", wx_to_std(ts).c_str(), wx_to_std(s).c_str());
272         fclose (f);
273 }
274
275 void
276 SwaroopControls::add_playlist_to_list (SPL spl)
277 {
278         int const N = _spl_view->GetItemCount();
279
280         wxListItem it;
281         it.SetId(N);
282         it.SetColumn(0);
283         string t = spl.name();
284         if (spl.missing()) {
285                 t += " (content missing)";
286         }
287         it.SetText (std_to_wx(t));
288         _spl_view->InsertItem (it);
289 }
290
291 struct SPLComparator
292 {
293         bool operator() (SPL const & a, SPL const & b) {
294                 return a.name() < b.name();
295         }
296 };
297
298 void
299 SwaroopControls::update_playlist_directory ()
300 {
301         using namespace boost::filesystem;
302
303         _spl_view->DeleteAllItems ();
304         optional<path> dir = Config::instance()->player_playlist_directory();
305         if (!dir) {
306                 return;
307         }
308
309         _playlists.clear ();
310
311         for (directory_iterator i = directory_iterator(*dir); i != directory_iterator(); ++i) {
312                 try {
313                         if (is_regular_file(i->path()) && i->path().extension() == ".xml") {
314                                 SPL spl;
315                                 spl.read (i->path(), _content_view);
316                                 _playlists.push_back (spl);
317                         }
318                 } catch (exception& e) {
319                         /* Never mind */
320                 }
321         }
322
323         sort (_playlists.begin(), _playlists.end(), SPLComparator());
324         BOOST_FOREACH (SPL i, _playlists) {
325                 add_playlist_to_list (i);
326         }
327
328         _selected_playlist = boost::none;
329 }
330
331 optional<dcp::EncryptedKDM>
332 SwaroopControls::get_kdm_from_url (shared_ptr<DCPContent> dcp)
333 {
334         ScopedTemporary temp;
335         string url = Config::instance()->kdm_server_url();
336         boost::algorithm::replace_all (url, "{CPL}", *dcp->cpl());
337         optional<dcp::EncryptedKDM> kdm;
338         if (dcp->cpl() && !get_from_url(url, false, temp)) {
339                 try {
340                         kdm = dcp::EncryptedKDM (dcp::file_to_string(temp.file()));
341                         if (kdm->cpl_id() != dcp->cpl()) {
342                                 kdm = boost::none;
343                         }
344                 } catch (std::exception& e) {
345                         /* Hey well */
346                 }
347         }
348         return kdm;
349 }
350
351 optional<dcp::EncryptedKDM>
352 SwaroopControls::get_kdm_from_directory (shared_ptr<DCPContent> dcp)
353 {
354         using namespace boost::filesystem;
355         optional<path> kdm_dir = Config::instance()->player_kdm_directory();
356         if (!kdm_dir) {
357                 return optional<dcp::EncryptedKDM>();
358         }
359         for (directory_iterator i = directory_iterator(*kdm_dir); i != directory_iterator(); ++i) {
360                 try {
361                         if (file_size(i->path()) < MAX_KDM_SIZE) {
362                                 dcp::EncryptedKDM kdm (dcp::file_to_string(i->path()));
363                                 if (kdm.cpl_id() == dcp->cpl()) {
364                                         return kdm;
365                                 }
366                         }
367                 } catch (std::exception& e) {
368                         /* Hey well */
369                 }
370         }
371         return optional<dcp::EncryptedKDM>();
372 }
373
374 void
375 SwaroopControls::spl_selection_changed ()
376 {
377         long int selected = _spl_view->GetNextItem (-1, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED);
378         if (selected == -1) {
379                 _current_spl_view->DeleteAllItems ();
380                 _selected_playlist = boost::none;
381                 return;
382         }
383
384         if (_playlists[selected].missing()) {
385                 error_dialog (this, "This playlist cannot be loaded as some content is missing.");
386                 _selected_playlist = boost::none;
387                 _spl_view->SetItemState (selected, 0, wxLIST_STATE_SELECTED);
388                 return;
389         }
390
391         if (_playlists[selected].get().empty()) {
392                 error_dialog (this, "This playlist is empty.");
393                 return;
394         }
395
396         select_playlist (selected, 0);
397 }
398
399 void
400 SwaroopControls::select_playlist (int selected, int position)
401 {
402         log (wxString::Format("load-playlist %s", std_to_wx(_playlists[selected].name()).data()));
403
404         wxProgressDialog dialog (_("DCP-o-matic"), "Loading playlist and KDMs");
405
406         BOOST_FOREACH (SPLEntry const & i, _playlists[selected].get()) {
407                 dialog.Pulse ();
408                 shared_ptr<DCPContent> dcp = dynamic_pointer_cast<DCPContent> (i.content);
409                 if (dcp && dcp->needs_kdm()) {
410                         optional<dcp::EncryptedKDM> kdm;
411                         kdm = get_kdm_from_url (dcp);
412                         if (!kdm) {
413                                 kdm = get_kdm_from_directory (dcp);
414                         }
415                         if (kdm) {
416                                 try {
417                                         dcp->add_kdm (*kdm);
418                                         dcp->examine (_film, shared_ptr<Job>());
419                                 } catch (KDMError& e) {
420                                         error_dialog (this, "Could not load KDM.");
421                                 }
422                         }
423                         if (dcp->needs_kdm()) {
424                                 /* We didn't get a KDM for this */
425                                 error_dialog (this, "This playlist cannot be loaded as a KDM is missing.");
426                                 _selected_playlist = boost::none;
427                                 _spl_view->SetItemState (selected, 0, wxLIST_STATE_SELECTED);
428                                 return;
429                         }
430                 }
431         }
432
433         _current_spl_view->DeleteAllItems ();
434
435         int N = 0;
436         BOOST_FOREACH (SPLEntry i, _playlists[selected].get()) {
437                 wxListItem it;
438                 it.SetId (N);
439                 it.SetColumn (0);
440                 it.SetText (std_to_wx(i.name));
441                 _current_spl_view->InsertItem (it);
442                 ++N;
443         }
444
445         _selected_playlist = selected;
446         _selected_playlist_position = position;
447         dialog.Pulse ();
448         reset_film ();
449         dialog.Pulse ();
450         update_current_content ();
451 }
452
453 void
454 SwaroopControls::reset_film ()
455 {
456         DCPOMATIC_ASSERT (_selected_playlist);
457         shared_ptr<Film> film (new Film(optional<boost::filesystem::path>()));
458         film->add_content (_playlists[*_selected_playlist].get()[_selected_playlist_position].content);
459         ResetFilm (film);
460 }
461
462 void
463 SwaroopControls::config_changed (int property)
464 {
465         Controls::config_changed (property);
466
467         if (property == Config::PLAYER_CONTENT_DIRECTORY) {
468                 _content_view->update ();
469         } else if (property == Config::PLAYER_PLAYLIST_DIRECTORY) {
470                 update_playlist_directory ();
471         }
472 }
473
474 void
475 SwaroopControls::set_film (shared_ptr<Film> film)
476 {
477         Controls::set_film (film);
478         setup_sensitivity ();
479 }
480
481 void
482 SwaroopControls::update_current_content ()
483 {
484         DCPOMATIC_ASSERT (_selected_playlist);
485
486         wxProgressDialog dialog (_("DCP-o-matic"), "Loading content");
487
488         SPLEntry const & e = _playlists[*_selected_playlist].get()[_selected_playlist_position];
489         _current_disable_timeline = e.disable_timeline;
490         _current_disable_next = !e.skippable;
491
492         setup_sensitivity ();
493         dialog.Pulse ();
494         reset_film ();
495 }
496
497 void
498 SwaroopControls::viewer_finished ()
499 {
500         if (!_selected_playlist) {
501                 return;
502         }
503
504         bool const stop = _playlists[*_selected_playlist].get()[_selected_playlist_position].stop_after_play;
505
506         _selected_playlist_position++;
507         if (_selected_playlist_position < int(_playlists[*_selected_playlist].get().size())) {
508                 update_current_content ();
509                 if (!stop) {
510                         _viewer->start ();
511                 }
512         } else {
513                 _selected_playlist_position = 0;
514                 ResetFilm (shared_ptr<Film>(new Film(optional<boost::filesystem::path>())));
515         }
516 }