web/res/metadataplayer/MashupPlayer.js
changeset 1198 ff4b567d51f2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/res/metadataplayer/MashupPlayer.js	Sun Feb 15 00:43:16 2015 +0100
@@ -0,0 +1,256 @@
+IriSP.Widgets.MashupPlayer = function(player, config) {
+    IriSP.Widgets.Widget.call(this, player, config);
+    this.is_mashup = true;
+};
+
+IriSP.Widgets.MashupPlayer.prototype = new IriSP.Widgets.Widget();
+
+IriSP.Widgets.MashupPlayer.prototype.defaults = {
+    aspect_ratio: 14/9,
+    split_screen: false,
+    player_type: "PopcornPlayer",
+    background: "#000000"
+};
+
+IriSP.Widgets.MashupPlayer.prototype.draw = function() {
+    var _this = this,
+        _mashup = this.media,
+        _currentMedia = null,
+        _currentAnnotation = null,
+        _segmentBegin,
+        _segmentEnd,
+        _timecode = 0,
+        _seeking = false,
+        _seekdiv,
+        _timedelta,
+        medialist = _mashup.getMedias();
+    
+    _mashup.paused = (!this.autostart && !this.autoplay);
+    
+    function changeCurrentAnnotation() {
+        if (_timecode >= _mashup.duration) {
+            if (!_mashup.paused) {
+                _mashup.paused = true;
+                _mashup.trigger("pause");
+            }
+            _timecode = 0;
+        }
+        var _annotation = _mashup.getAnnotationAtTime( _timecode );
+        if (typeof _annotation === "undefined") {
+            if (_currentMedia) {
+                _currentMedia.pause();
+                if (!_mashup.paused) {
+                    _mashup.paused = true;
+                    _mashup.trigger("pause");
+                }
+            }
+            return;
+        }
+        if (_annotation !== _currentAnnotation) {
+            _currentAnnotation = _annotation;
+            _segmentBegin = _currentAnnotation.annotation.begin.milliseconds;
+            _segmentEnd = _currentAnnotation.annotation.end.milliseconds;
+            _timedelta = _segmentBegin - _currentAnnotation.begin.milliseconds;
+            _currentMedia = _currentAnnotation.getMedia();
+            
+            for (var _i = 0; _i < medialist.length; _i++) {
+                if (medialist[_i].id !== _currentMedia.id) {
+                    if (!_this.split_screen) {
+                        medialist[_i].hide();
+                    }
+                    medialist[_i].pause();
+                } else {
+                    medialist[_i].show();
+                }
+            }
+            
+    /* PRELOADING */
+            var _preloadedMedias = [],
+                _toPreload = _mashup.getAnnotations().filter(function(_a) {
+                return (_a.begin >= _currentAnnotation.end && _a.getMedia() !== _currentMedia);
+            });
+            IriSP._(_toPreload).each(function(_a) {
+                var _media = _a.getMedia();
+                if (IriSP._(_preloadedMedias).indexOf(_media.id) === -1) {
+                    _preloadedMedias.push(_media.id);
+                    _media.setCurrentTime(_a.annotation.begin.getSeconds());
+                    _media.seeking = true;
+/*
+                    console.log("Preloading ", _media.id, " at t=", _a.annotation.begin.getSeconds());
+*/
+                }
+            });
+            
+    //        console.log("Changed segment: media="+ this.currentMedia.id + ", from=" + this.segmentBegin + " to=" + this.segmentEnd +", timedelta = ", this.timedelta)
+    //    } else {
+    //        console.log("changeCurrentAnnotation called, but segment hasn't changed");
+        }
+        
+        _currentMedia.setCurrentTime( _timecode + _timedelta);
+        _currentMedia.seeking = true;
+        
+        if (!_mashup.paused) {
+            _currentMedia.play();
+            _seeking = true;
+            _seekdiv.show();
+        }
+/*
+        console.log("Setting time of media", _currentMedia.id, "to", _timecode + _timedelta)     
+*/
+        _mashup.trigger("timeupdate", new IriSP.Model.Time(_timecode));
+
+    }
+    
+    if (!this.height) {
+        this.height = Math.floor(this.width/this.aspect_ratio);
+        this.$.css({
+            height: this.height
+        });
+    }
+    
+    this.$.css({
+        background: this.background
+    });
+    
+    var _grid = Math.ceil(Math.sqrt(medialist.length)),
+        _width = (this.split_screen ? this.width / _grid : this.width),
+        _height = (this.split_screen ? this.height / _grid : this.height);
+
+    IriSP._(medialist).each(function(_media, _key) {
+        var _el = IriSP.jQuery('<div class="Ldt-MashupPlayer-Media"><div class="Ldt-MashupPlayer-Subwidget"></div></div>');
+        _el.css({
+            top: (_this.split_screen ? _height * Math.floor(_key / _grid) : 0),
+            left: (_this.split_screen ? _width * (_key % _grid) : 0),
+            height: _height,
+            width: _width,
+            display: (_this.split_screen ? "block" : "none")
+        });
+        _this.$.append(_el);
+        
+        _this.insertSubwidget(
+            _el.find(".Ldt-MashupPlayer-Subwidget"),
+            IriSP._({
+                type: _this.player_type,
+                media_id: _media.id,
+                height: _height,
+                width: _width,
+                url_transform: _this.url_transform
+            }).extend(_this.player_options)
+        );
+        
+        _media.loadedMetadata = false;
+        _media.show = function() {
+            _el.show();
+        };
+        _media.hide = function() {
+            _el.hide();
+        };
+        _media.on("loadedmetadata", function() {
+            _media.loadedMetadata = true;
+            var _allLoaded = true;
+            for (var _i = 0; _i < medialist.length; _i++) {
+                _allLoaded = _allLoaded && medialist[_i].loadedMetadata;
+            }
+            if (_allLoaded) {
+                _seekdiv.fadeOut();
+                changeCurrentAnnotation();
+                _mashup.trigger("loadedmetadata");
+            }
+        });
+        _media.on("timeupdate", function(_time) {
+            if (!_mashup.paused && _media === _currentMedia && !_media.seeking) {
+/*
+                var _status = "Timeupdate from " + _media.id + " at time " + _time;
+*/
+                if ( _time < _segmentEnd ) {
+                    if ( _time >= _segmentBegin ) {
+                        _timecode = _time - _timedelta;
+/*
+                        _status += " within segment";
+*/
+                    } else {
+                        _timecode = _segmentBegin - _timedelta;
+                        _media.setCurrentTime(_segmentBegin);
+/*
+                        _status += " before segment";
+*/
+                    }
+                } else {
+                    _timecode = _segmentEnd - _timedelta;
+                    _media.pause();
+                    changeCurrentAnnotation();
+/*
+                    _status += " after segment";
+*/
+                }
+/*
+                _status += " (" + _segmentBegin + " to " + _segmentEnd + ")" + ", translated to " + _timecode;
+                console.log(_status);
+*/
+                _mashup.trigger("timeupdate", new IriSP.Model.Time(_timecode));
+            }
+        });
+        _media.on("seeked", function() {
+            _media.seeking = false;
+            if (_media === _currentMedia && _seeking) {
+                _seeking = false;
+                _seekdiv.hide();
+            }
+        });
+        _media.on("play", function() {
+            if (_media === _currentMedia) {
+                _mashup.trigger("play");
+            }
+        });
+        _media.on("pause", function() {
+            if (_media === _currentMedia) {
+                _mashup.trigger("pause");
+            }
+        });
+        _media.on("volumechange", function() {
+            _mashup.muted = _media.muted;
+            _mashup.volume = _media.volume;
+            _mashup.trigger("volumechange");
+        });
+    });
+    
+    _seekdiv = IriSP.jQuery('<div class="Ldt-MashupPlayer-Waiting"></div>');
+    
+    this.$.append(_seekdiv);
+
+    // Binding functions to Popcorn
+    
+    _mashup.on("setcurrenttime", function(_milliseconds) {
+        _timecode = _milliseconds;
+        changeCurrentAnnotation();
+    });
+    
+    _mashup.on("setvolume", function(_vol) {
+        for (var _i = 0; _i < medialist.length; _i++) {
+            medialist[_i].setVolume(_vol);
+        }
+        _mashup.volume = _vol;
+    });
+    
+    _mashup.on("setmuted", function(_muted) {
+        for (var _i = 0; _i < medialist.length; _i++) {
+            medialist[_i].setMuted(_muted);
+        }
+        _mashup.muted = _muted;
+    });
+    
+    _mashup.on("setplay", function() {
+        _mashup.paused = false;
+        changeCurrentAnnotation();
+    });
+    
+    _mashup.on("setpause", function() {
+        _mashup.paused = true;
+        if (_currentMedia) {
+            _currentMedia.pause();
+        }
+    });
+    
+    _mashup.on("loadedmetadata", changeCurrentAnnotation);
+   
+};
\ No newline at end of file