forked from openlp/openlp
434 lines
15 KiB
Python
434 lines
15 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2014 Raoul Snyman #
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# Portions copyright (c) 2008-2014 Tim Bentley, Gerald Britton, Jonathan #
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# Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub, #
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# Meinert Jordan, Armin Köhler, Erik Lundin, Edwin Lunando, Brian T. Meyer. #
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# Joshua Miller, Stevan Pettit, Andreas Preikschat, Mattias Põldaru, #
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# Christian Richter, Philip Ridout, Simon Scudder, Jeffrey Smith, #
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# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Dave Warnock, #
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# Frode Woldsund, Martin Zibricky #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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import logging
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from openlp.core.lib.mediaplayer import MediaPlayer
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from openlp.core.ui.media import MediaState
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log = logging.getLogger(__name__)
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VIDEO_CSS = u"""
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#videobackboard {
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z-index:3;
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background-color: black;
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}
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#video1 {
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z-index:4;
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}
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#video2 {
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z-index:4;
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}
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"""
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VIDEO_JS = u"""
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var video_timer = null;
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var current_video = '1';
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function show_video(state, path, volume, loop, varVal){
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// Note, the preferred method for looping would be to use the
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// video tag loop attribute.
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// But QtWebKit doesn't support this. Neither does it support the
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// onended event, hence the setInterval()
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// In addition, setting the currentTime attribute to zero to restart
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// the video raises an INDEX_SIZE_ERROR: DOM Exception 1
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// To complicate it further, sometimes vid.currentTime stops
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// slightly short of vid.duration and vid.ended is intermittent!
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//
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// Note, currently the background may go black between loops. Not
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// desirable. Need to investigate using two <video>'s, and hiding/
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// preloading one, and toggle between the two when looping.
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if(current_video=='1'){
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var vid = document.getElementById('video1');
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var vid2 = document.getElementById('video2');
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} else {
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var vid = document.getElementById('video2');
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var vid2 = document.getElementById('video1');
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}
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if(volume != null){
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vid.volume = volume;
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vid2.volume = volume;
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}
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switch(state){
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case 'init':
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vid.src = 'file:///' + path;
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vid2.src = 'file:///' + path;
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if(loop == null) loop = false;
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vid.looping = loop;
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vid2.looping = loop;
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vid.load();
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break;
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case 'load':
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vid2.style.visibility = 'hidden';
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vid2.load();
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break;
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case 'play':
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vid.play();
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if(vid.looping){
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video_timer = setInterval(
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function() {
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show_video('poll');
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}, 200);
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}
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break;
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case 'pause':
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if(video_timer!=null){
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clearInterval(video_timer);
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video_timer = null;
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}
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vid.pause();
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break;
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case 'stop':
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show_video('pause');
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vid.currentTime = 0;
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break;
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case 'poll':
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if(vid.ended||vid.currentTime+0.2>vid.duration)
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show_video('swap');
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break;
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case 'swap':
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show_video('pause');
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if(current_video=='1')
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current_video = '2';
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else
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current_video = '1';
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show_video('load');
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show_video('play');
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show_video('setVisible',null,null,null,'visible');
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break;
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case 'close':
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show_video('stop');
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vid.src = '';
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vid2.src = '';
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break;
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case 'length':
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return vid.duration;
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case 'currentTime':
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return vid.currentTime;
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case 'seek':
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// doesnt work currently
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vid.currentTime = varVal;
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break;
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case 'isEnded':
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return vid.ended;
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case 'setVisible':
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vid.style.visibility = varVal;
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break;
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case 'setBackBoard':
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var back = document.getElementById('videobackboard');
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back.style.visibility = varVal;
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break;
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}
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}
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"""
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VIDEO_HTML = u"""
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<div id="videobackboard" class="size" style="visibility:hidden"></div>
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<video id="video1" class="size" style="visibility:hidden" autobuffer preload>
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</video>
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<video id="video2" class="size" style="visibility:hidden" autobuffer preload>
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</video>
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"""
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FLASH_CSS = u"""
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#flash {
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z-index:5;
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}
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"""
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FLASH_JS = u"""
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function getFlashMovieObject(movieName)
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{
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if (window.document[movieName])
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{
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return window.document[movieName];
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}
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if (document.embeds && document.embeds[movieName])
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return document.embeds[movieName];
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}
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function show_flash(state, path, volume, varVal){
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var text = document.getElementById('flash');
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var flashMovie = getFlashMovieObject("OpenLPFlashMovie");
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var src = "src = 'file:///" + path + "'";
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var view_parm = " wmode='opaque'" +
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" width='100%%'" +
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" height='100%%'";
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var swf_parm = " name='OpenLPFlashMovie'" +
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" autostart='true' loop='false' play='true'" +
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" hidden='false' swliveconnect='true' allowscriptaccess='always'" +
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" volume='" + volume + "'";
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switch(state){
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case 'load':
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text.innerHTML = "<embed " + src + view_parm + swf_parm + "/>";
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flashMovie = getFlashMovieObject("OpenLPFlashMovie");
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flashMovie.Play();
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break;
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case 'play':
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flashMovie.Play();
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break;
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case 'pause':
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flashMovie.StopPlay();
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break;
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case 'stop':
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flashMovie.StopPlay();
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tempHtml = text.innerHTML;
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text.innerHTML = '';
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text.innerHTML = tempHtml;
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break;
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case 'close':
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flashMovie.StopPlay();
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text.innerHTML = '';
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break;
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case 'length':
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return flashMovie.TotalFrames();
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case 'currentTime':
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return flashMovie.CurrentFrame();
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case 'seek':
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// flashMovie.GotoFrame(varVal);
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break;
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case 'isEnded':
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return false;//TODO check flash end
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case 'setVisible':
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text.style.visibility = varVal;
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break;
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}
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}
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"""
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FLASH_HTML = u"""
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<div id="flash" class="size" style="visibility:hidden"></div>
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"""
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VIDEO_EXT = [
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u'*.3gp',
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u'*.3gpp',
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u'*.3g2',
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u'*.3gpp2',
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u'*.aac',
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u'*.flv',
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u'*.f4a',
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u'*.f4b',
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u'*.f4p',
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u'*.f4v',
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u'*.mov',
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u'*.m4a',
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u'*.m4b',
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u'*.m4p',
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u'*.m4v',
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u'*.mkv',
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u'*.mp4',
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u'*.ogv',
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u'*.webm',
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u'*.mpg', u'*.wmv', u'*.mpeg', u'*.avi',
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u'*.swf'
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]
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AUDIO_EXT = [
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u'*.mp3',
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u'*.ogg'
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]
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class WebkitPlayer(MediaPlayer):
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"""
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A specialised version of the MediaPlayer class, which provides a QtWebKit
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display.
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"""
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def __init__(self, parent):
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MediaPlayer.__init__(self, parent, u'webkit')
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self.original_name = u'WebKit'
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self.display_name = u'&WebKit'
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self.parent = parent
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self.canBackground = True
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self.audio_extensions_list = AUDIO_EXT
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self.video_extensions_list = VIDEO_EXT
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def get_media_display_css(self):
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"""
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Add css style sheets to htmlbuilder
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"""
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return VIDEO_CSS + FLASH_CSS
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def get_media_display_javascript(self):
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"""
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Add javascript functions to htmlbuilder
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"""
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return VIDEO_JS + FLASH_JS
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def get_media_display_html(self):
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"""
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Add html code to htmlbuilder
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"""
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return VIDEO_HTML + FLASH_HTML
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def setup(self, display):
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display.webView.resize(display.size())
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display.webView.raise_()
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self.hasOwnWidget = False
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def check_available(self):
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return True
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def load(self, display):
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log.debug(u'load vid in Webkit Controller')
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controller = display.controller
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if display.hasAudio and not controller.media_info.is_background:
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volume = controller.media_info.volume
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vol = float(volume) / float(100)
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else:
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vol = 0
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path = controller.media_info.file_info.absoluteFilePath()
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if controller.media_info.is_background:
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loop = u'true'
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else:
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loop = u'false'
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display.webView.setVisible(True)
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if controller.media_info.file_info.suffix() == u'swf':
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controller.media_info.is_flash = True
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js = u'show_flash("load","%s");' % \
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(path.replace(u'\\', u'\\\\'))
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else:
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js = u'show_video("init", "%s", %s, %s);' % \
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(path.replace(u'\\', u'\\\\'), str(vol), loop)
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display.frame.evaluateJavaScript(js)
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return True
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def resize(self, display):
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controller = display.controller
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display.webView.resize(display.size())
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def play(self, display):
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controller = display.controller
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display.webLoaded = True
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length = 0
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start_time = 0
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if self.state != MediaState.Paused and \
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controller.media_info.start_time > 0:
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start_time = controller.media_info.start_time
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self.set_visible(display, True)
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if controller.media_info.is_flash:
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display.frame.evaluateJavaScript(u'show_flash("play");')
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else:
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display.frame.evaluateJavaScript(u'show_video("play");')
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if start_time > 0:
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self.seek(display, controller.media_info.start_time * 1000)
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# TODO add playing check and get the correct media length
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controller.media_info.length = length
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self.state = MediaState.Playing
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display.webView.raise_()
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return True
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def pause(self, display):
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controller = display.controller
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if controller.media_info.is_flash:
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display.frame.evaluateJavaScript(u'show_flash("pause");')
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else:
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display.frame.evaluateJavaScript(u'show_video("pause");')
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self.state = MediaState.Paused
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def stop(self, display):
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controller = display.controller
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if controller.media_info.is_flash:
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display.frame.evaluateJavaScript(u'show_flash("stop");')
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else:
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display.frame.evaluateJavaScript(u'show_video("stop");')
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self.state = MediaState.Stopped
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def volume(self, display, vol):
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controller = display.controller
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# 1.0 is the highest value
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if display.hasAudio:
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vol = float(vol) / float(100)
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if not controller.media_info.is_flash:
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display.frame.evaluateJavaScript(
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u'show_video(null, null, %s);' % str(vol))
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def seek(self, display, seekVal):
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controller = display.controller
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if controller.media_info.is_flash:
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seek = seekVal
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display.frame.evaluateJavaScript(
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u'show_flash("seek", null, null, "%s");' % (seek))
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else:
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seek = float(seekVal) / 1000
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display.frame.evaluateJavaScript(
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u'show_video("seek", null, null, null, "%f");' % (seek))
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def reset(self, display):
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controller = display.controller
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if controller.media_info.is_flash:
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display.frame.evaluateJavaScript(u'show_flash("close");')
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else:
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display.frame.evaluateJavaScript(u'show_video("close");')
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self.state = MediaState.Off
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def set_visible(self, display, status):
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controller = display.controller
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if status:
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is_visible = "visible"
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else:
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is_visible = "hidden"
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if controller.media_info.is_flash:
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display.frame.evaluateJavaScript(u'show_flash( \
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"setVisible", null, null, "%s");' % (is_visible))
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else:
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display.frame.evaluateJavaScript(u'show_video( \
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"setVisible", null, null, null, "%s");' % (is_visible))
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def update_ui(self, display):
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controller = display.controller
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if controller.media_info.is_flash:
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currentTime = display.frame.evaluateJavaScript(
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u'show_flash("currentTime");').toInt()[0]
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length = display.frame.evaluateJavaScript(
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u'show_flash("length");').toInt()[0]
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else:
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if display.frame.evaluateJavaScript(
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u'show_video("isEnded");').toString() == 'true':
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self.stop(display)
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(currentTime, ok) = display.frame.evaluateJavaScript(
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u'show_video("currentTime");').toFloat()
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# check if conversion was ok and value is not 'NaN'
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if ok and currentTime != float('inf'):
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currentTime = int(currentTime * 1000)
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(length, ok) = display.frame.evaluateJavaScript(
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u'show_video("length");').toFloat()
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# check if conversion was ok and value is not 'NaN'
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if ok and length != float('inf'):
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length = int(length * 1000)
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if currentTime > 0:
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controller.media_info.length = length
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controller.seekSlider.setMaximum(length)
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if not controller.seekSlider.isSliderDown():
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controller.seekSlider.setSliderPosition(currentTime)
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