From 0369eaff141d97b9b0eb178a9cc63bf465d2a490 Mon Sep 17 00:00:00 2001
From: rlx <0x0073@0x2620.org>
Date: Sat, 20 Aug 2011 09:48:28 +0000
Subject: [PATCH] video updates (playlists)

---
 source/Ox.UI/js/Video/Ox.VideoElement.js | 311 +++++++++++++++++------
 source/Ox.UI/js/Video/Ox.VideoPlayer.js  | 133 +++++++---
 2 files changed, 334 insertions(+), 110 deletions(-)

diff --git a/source/Ox.UI/js/Video/Ox.VideoElement.js b/source/Ox.UI/js/Video/Ox.VideoElement.js
index 42e2a5f1..33f19715 100644
--- a/source/Ox.UI/js/Video/Ox.VideoElement.js
+++ b/source/Ox.UI/js/Video/Ox.VideoElement.js
@@ -11,77 +11,42 @@ Ox.VideoElement = function(options, self) {
             })
             .options(options || {});
 
-    self.options.src = Ox.isArray(self.options.src) ? self.options.src : [self.options.src];
-
     Ox.print('VIDEO ELEMENT OPTIONS', self.options)
 
-    self.currentPart = 0;
-    self.duration = 0;
-    self.durations = self.options.src.map(function() {
-        return 0;
-    });
-    self.offsets = [];
-    self.parts = self.options.src.length;
+    self.items = [];
     self.paused = true;
+    self.$video = $('<div>');
 
-    self.$videos = self.options.src.map(function(src, i) {
-        return $('<video>')
-            .css({position: 'absolute'})
-            .bind({
-                ended: function(e) {
-                    alert(e);
-                    if (i < self.parts - 1) {
-                        setCurrentPart(self.currentPart + 1);
-                        self.video.play();
-                    } else {
-                        self.ended = true;
-                        self.paused = true;
-                        that.triggerEvent('ended');
-                    }
-                },
-                loadedmetadata: function() {
-                    self.durations[i] = self.videos[i].duration;
-                    Ox.print(i, 'lm', self.durations);
-                    if (Ox.every(self.durations)) {
-                        self.duration = Ox.sum(self.durations);
-                        self.offsets = Ox.range(self.parts).map(function(i) {
-                            return Ox.sum(Ox.sub(self.durations, 0, i));
-                        });
-                        Ox.print('s.o', self.offsets)
-                        that.triggerEvent('loadedmetadata');
-                    }
-                },
-                progress: function() {
-                    
-                },
-                seeked: function() {
-                    that.triggerEvent('seeked');
-                },
-                seeking: function() {
-                    that.triggerEvent('seeking');
-                },
-                stop: function() {
-                    self.video.pause();
-                    that.triggerEvent('ended');
+    if (Ox.isFunction(self.options.src)) {
+        self.isPlaylist = true;
+        self.currentItem = 0;
+        self.currentPage = 0;
+        self.loadedMetadata = false;
+        self.pageLength = 2;
+        self.options.src(function(items) {
+            self.numberOfItems = items;
+            self.numberOfPages = Math.ceil(self.numberOfItems / self.pageLength);
+            loadPages(function() {
+                Ox.print('VIDEO PAGES LOADED');
+                setCurrentItem(0);
+                if (!self.loadedMedatata) {
+                    self.loadedMetadata = true;
+                    that.triggerEvent('loadedmetadata');
+                    that.triggerEvent('pointschange'); // fixme: needs to be triggered again, loadedmetadata messes with duration
                 }
-            })
-            .attr(Ox.extend({
-                preload: 'metadata',
-                src: src
-            }, i == 0 && self.options.autoplay ? {
-                autoplay: 'autoplay'
-            } : {}))
-            .hide()
-            .appendTo(that.$element);
-    });
-    self.videos = self.$videos.map(function($video) {
-        return $video[0];
-    });
-    self.$video = self.$videos[0].show();
-    self.video = self.$video[0];
+            });
+        });
+    } else {
+        self.numberOfItems = 1;
+        self.items.push(loadItem(self.options.src));
+    }
+
+    function getCurrentPage() {
+        return Math.floor(self.currentItem / self.pageLength);
+    }
 
     function getCurrentTime() {
-        return self.offsets[self.currentPart] + self.video.currentTime;
+        return self.items[self.currentItem].offsets[self.currentPart] + self.video.currentTime;
     }
 
     function getset(key, value) {
@@ -95,15 +60,172 @@ Ox.VideoElement = function(options, self) {
         return ret;
     }
 
+    function loadPage(page, callback) {
+        Ox.print('VIDEO loadPage', page)
+        //page = Ox.mod(page, self.numberOfPages);
+        var loadedmetadata = 0,
+            start = page * self.pageLength,
+            stop = Math.min(start + self.pageLength, self.numberOfItems),
+            pageLength = stop - start;
+        if (!self.items[start]) {
+            self.options.src([start, stop], function(data) {
+                data.forEach(function(data, i) {
+                    self.items[start + i] = loadItem(data.parts, data.points, function(item) {
+                        if (++loadedmetadata == pageLength) {
+                            Ox.print('VIDEO page', page, 'loaded')
+                            callback && callback();
+                        }
+                    });
+                });
+            });
+        } else {
+            Ox.print('PAGE IN CACHE')
+            callback && callback();
+        }
+    }
+
+    function loadPages(callback) {
+        var currentPage = self.currentPage,
+            nextPage = Ox.mod(currentPage + 1, self.numberOfPages),
+            previousPage = Ox.mod(currentPage - 1, self.numberOfPages)
+        loadPage(currentPage, function() {
+            if (nextPage != currentPage) {
+                loadPage(nextPage, function() {
+                    if (previousPage != currentPage && previousPage != nextPage) {
+                        unloadPage(previousPage);
+                    }
+                });
+            }
+            callback && callback();
+        });
+    }
+
+    function loadItem(src, points, callback) {
+        src = Ox.isArray(src) ? src : [src];
+        var item = {
+            currentPart: 0,
+            duration: 0,
+            durations: src.map(function() {
+                return 0;
+            }),
+            offsets: [],
+            parts: src.length
+        };
+        if (points) {
+            item.points = points;
+        }
+        item.$videos = src.map(function(src, i) {
+            // in all browsers except firefox,
+            // loadedmetadata fires only once per src
+            src += '?' + Ox.uid();
+            return $('<video>')
+                .css({position: 'absolute'})
+                .bind({
+                    ended: function() {
+                        if (i < self.parts - 1) {
+                            setCurrentPart(self.currentPart + 1);
+                            self.video.play();
+                        } /*else if (self.isPlaylist) {
+                            setCurrentItem(self.currentItem + 1);
+                            self.video.play();
+                        }*/ else {
+                            self.ended = true;
+                            self.paused = true;
+                            that.triggerEvent('ended');
+                        }
+                    },
+                    loadedmetadata: function() {
+                        item.durations[i] = item.videos[i].duration;
+                        if (self.isPlaylist && i == 0) {
+                            item.videos[0].currentTime = item.points[0];
+                        }
+                        if (Ox.every(item.durations)) {
+                            item.duration = Ox.sum(item.durations);
+                            item.offsets = Ox.range(item.parts).map(function(i) {
+                                return Ox.sum(Ox.sub(item.durations, 0, i));
+                            });
+                            //Ox.print('METADATA OF', src, 'LOADED', item)
+                            if (self.isPlaylist) {
+                                callback && callback();
+                            } else {
+                                setCurrentItem(0);
+                                that.triggerEvent('loadedmetadata');
+                            }
+                        }
+                    },
+                    progress: function() {
+                        // not implemented
+                    },
+                    seeked: function() {
+                        that.triggerEvent('seeked');
+                    },
+                    seeking: function() {
+                        that.triggerEvent('seeking');
+                    },
+                    stop: function() {
+                        // custom event to be triggered on removal from the DOM
+                        self.video.pause();
+                        self.video.src = '';
+                        that.triggerEvent('ended');
+                    }
+                })
+                .attr(Ox.extend({
+                    preload: 'metadata',
+                    src: src
+                }, i == 0 && self.options.autoplay ? {
+                    autoplay: 'autoplay'
+                } : {}))
+                .hide()
+                .appendTo(that.$element);
+        });
+        item.videos = item.$videos.map(function($video) {
+            return $video[0];
+        });
+        return item;
+    }
+
+    function setCurrentItem(item) {
+        Ox.print('scI', item);
+        var interval;
+        item = Ox.mod(item, self.numberOfItems);
+        self.video && self.video.pause();
+        if (self.items[item]) {
+            set();
+        } else {
+            that.triggerEvent('seeking');
+            interval = setInterval(function() {
+                Ox.print('ITEM', item, 'NOT AVAILABLE');
+                if (self.items[item]) {
+                    clearInterval(interval);
+                    that.triggerEvent('seeked');
+                    set();
+                }
+            }, 250);
+        }
+        function set() {
+            self.currentItem = item;
+            self.currentPart = -1;
+            setCurrentTime(0);
+            if (self.isPlaylist) {
+                that.triggerEvent('pointschange');
+                that.triggerEvent('sizechange');
+                self.currentPage = getCurrentPage();
+                loadPages();
+            }
+        }
+    }
+
     function setCurrentPart(part) {
         Ox.print('sCP', part);
         var css = {};
         ['left', 'top', 'width', 'height'].forEach(function(key) {
             css[key] = self.$video.css(key);
         });
-        self.$video.hide();
-        self.video.pause();
-        self.$video = self.$videos[part].css(css).show();
+        if (self.video) {
+            self.video.pause();
+            self.$video.hide();
+        }
+        self.$video = self.items[self.currentItem].$videos[part].css(css).show();
         self.video = self.$video[0];
         !self.paused && self.video.play();
         self.currentPart = part;
@@ -112,11 +234,12 @@ Ox.VideoElement = function(options, self) {
 
     function setCurrentTime(time) {
         Ox.print('sCT', time);
-        var currentPart, currentTime;
-        Ox.loop(self.parts - 1, -1, -1, function(i) {
-            if (self.offsets[i] <= time) {
+        var currentPart, currentTime,
+            item = self.items[self.currentItem];
+        Ox.loop(item.parts - 1, -1, -1, function(i) {
+            if (item.offsets[i] <= time) {
                 currentPart = i;
-                currentTime = time - self.offsets[i];
+                currentTime = time - item.offsets[i];
                 return false;
             }
         });
@@ -127,6 +250,22 @@ Ox.VideoElement = function(options, self) {
         self.video.currentTime = currentTime;
     }
 
+    function unloadPage(page) {
+        //page = Ox.mod(page, self.numberOfPages);
+        Ox.print('unloadPage', page)
+        var start = page * self.pageLength,
+            stop = Math.min(start + self.pageLength, self.numberOfItems);
+        Ox.range(start, stop).forEach(function(i) {
+            if (self.items[i]) {
+                self.items[i].$videos.forEach(function($video) {
+                    $video[0].src = ''
+                    $video.remove();
+                });
+                delete self.items[i];
+            }
+        });
+    }
+
     that.animate = function() {
         self.$video.animate.apply(self.$video, arguments);
         return that;
@@ -149,18 +288,34 @@ Ox.VideoElement = function(options, self) {
     };
 
     that.css = function() {
-        self.$video.css.apply(self.$video, arguments);
+        var interval;
+        if (self.$video) {
+            self.$video.css.apply(self.$video, arguments);
+        } else {
+            interval = setInterval(function() {
+                Ox.print('VIDEO NOT YET AVAILABLE');
+                if (self.$video) {
+                    clearInterval(interval);
+                    self.$video.css.apply(self.$video, arguments);
+                }
+            }, 250);
+        }
         return that;
     };
 
     that.duration = function() {
-        return self.duration;
+        // 86399
+        return self.items[self.currentItem].duration;
     };
 
     that.muted = function() {
         return getset('muted', arguments[0]);
     };
 
+    that.points = function() {
+        return self.items[self.currentItem].points;
+    };
+
     that.pause = function() {
         self.paused = true;
         self.video.pause();
@@ -177,6 +332,16 @@ Ox.VideoElement = function(options, self) {
         return that;
     };
 
+    that.playNext = function() {
+        Ox.print('PLAY NEXT')
+        setCurrentItem(self.currentItem + 1);
+        self.video.play();
+    };
+
+    that.playPrevious = function() {
+        setCurrentItem(self.currentItem - 1);
+    };
+
     that.src = function() {
         var ret;
         if (arguments.length == 0) {
diff --git a/source/Ox.UI/js/Video/Ox.VideoPlayer.js b/source/Ox.UI/js/Video/Ox.VideoPlayer.js
index decc41c2..2fbbb96b 100644
--- a/source/Ox.UI/js/Video/Ox.VideoPlayer.js
+++ b/source/Ox.UI/js/Video/Ox.VideoPlayer.js
@@ -10,12 +10,12 @@ Ox.VideoPlayer <f> Generic Video Player
                 in <n> In point (sec)
                 out <n> Out point (sec)
                 text <s> Text
-        # fixme: documentation is wrong
-        controls <[[s]]|[[][]]> Controls, first top, then bottom, from left to right
-            Can be 'fullscreen', 'scale', 'title', 'find', 'menu',
-            'play', 'playInToOut', 'mute', 'volume', 'size', 'timeline', 'space',
+        controlsBottom <[s]|[]> Bottom controls, from left to right
+            Can be 'fullscreen', 'scale', 'title', 'find', 'menu', 'play', 'playInToOut',
+            'previous', 'next', 'mute', 'volume', 'size', 'timeline', 'space',
             'position', 'resolution', 'settings'. The 'space' control is just
             empty space that separates left-aligned from right-aligned controls.
+        controlsTop <[s]|[]> Top controls, from left to right
         duration <n|-1> Duration (sec)
         enableFind <b|false> If true, enable find
         enableFullscreen <b|false> If true, enable fullscreen
@@ -140,6 +140,7 @@ Ox.VideoPlayer = function(options, self) {
         }
         self.video = self.options.video[self.options.resolution];
     } else {
+        self.isPlaylist = Ox.isFunction(self.options.video);
         self.video = self.options.video;
     }
 
@@ -284,8 +285,10 @@ Ox.VideoPlayer = function(options, self) {
             .bindEvent(Ox.extend({
                 ended: ended,
                 loadedmetadata: loadedmetadata,
+                pointschange: pointschange,
                 seeked: seeked,
-                seeking: seeking
+                seeking: seeking,
+                sizechange: sizechange
             }, self.options.progress ? {
                 progress: progress
             } : {}))
@@ -516,6 +519,22 @@ Ox.VideoPlayer = function(options, self) {
                     })
                     .appendTo(self['$controls' + titleCase]);
 
+                } else if (control == 'next') {
+
+                    self.$nextClipButton = Ox.Button({
+                        style: 'symbol',
+                        title: 'arrowRight',
+                        tooltip: 'Next',
+                        type: 'image'
+                    })
+                    .addClass('OxVideo')
+                    .bindEvent({
+                        click: function() {
+                            goToNextClip(1);
+                        }
+                    })
+                    .appendTo(self['$controls' + titleCase]);
+
                 } else if (control == 'play') {
 
                     self.$playButton = Ox.Button({
@@ -609,6 +628,22 @@ Ox.VideoPlayer = function(options, self) {
                             fontSize: '9px'
                         });                
 
+                } else if (control == 'previous') {
+
+                    self.$previousClipButton = Ox.Button({
+                        style: 'symbol',
+                        title: 'arrowLeft',
+                        tooltip: 'Previous',
+                        type: 'image'
+                    })
+                    .addClass('OxVideo')
+                    .bindEvent({
+                        click: function() {
+                            goToNextClip(-1);
+                        }
+                    })
+                    .appendTo(self['$controls' + titleCase]);
+
                 } else if (control == 'resolution') {
 
                     self.$resolutionButton = Ox.Element({
@@ -801,7 +836,7 @@ Ox.VideoPlayer = function(options, self) {
             .html('0')
             .appendTo(self.$find);
 
-        self.$previousButton = Ox.Button({
+        self.$previousResultButton = Ox.Button({
                 disabled: true,
                 style: 'symbol',
                 title: 'arrowLeft',
@@ -816,7 +851,7 @@ Ox.VideoPlayer = function(options, self) {
             })
             .appendTo(self.$find);
 
-        self.$nextButton = Ox.Button({
+        self.$nextResultButton = Ox.Button({
                 disabled: true,
                 style: 'symbol',
                 title: 'arrowRight',
@@ -1316,6 +1351,28 @@ Ox.VideoPlayer = function(options, self) {
         return Ox.UI.getImageURL('symbol' + symbol, 'modern');
     }
 
+    function goToNextClip(direction) {
+        self.$video[direction == 1 ? 'playNext' : 'playPrevious']();
+    }
+
+    function goToNextResult(direction) {
+        var found = false,
+            position = 0;
+        direction == -1 && self.results.reverse();
+        Ox.forEach(self.results, function(v) {
+            if (direction == 1 ? v['in'] > self.options.position : v.out < self.options.position) {
+                position = v['in'];
+                found = true;
+                return false;
+            }
+        });
+        direction == -1 && self.results.reverse();
+        if (!found) {
+            position = self.results[direction == 1 ? 0 : self.results.length - 1]['in'];
+        }
+        setPosition(position + self.secondsPerFrame);
+    }
+
     function goToPoint() {
         that.triggerEvent('gotopoint');
     }
@@ -1416,10 +1473,10 @@ Ox.VideoPlayer = function(options, self) {
         });
 
         self.out = self.options.playInToOut &&
-            self.options.out < self.$video.duration() ?
-            self.options.out : self.$video.duration();
+            self.out < self.$video.duration() ?
+            self.out : self.$video.duration();
         self.options.duration = self.out - self['in'];
-        Ox.print('----------------------------------------', self.options.position)
+        Ox.print('---------------------------------------- POS', self.options.position)
         //self.options.position = Ox.limit(self.options.position, self['in'], self.out);
         self.$video.currentTime(self.options.position);
 
@@ -1475,13 +1532,17 @@ Ox.VideoPlayer = function(options, self) {
     function playing() {
         self.options.position = self.$video.currentTime();
         if (
-            (self.options.playInToOut || self.playInToOut) &&
-            self.options.position >= self.options.out
+            (self.options.playInToOut || self.playInToOut || self.isPlaylist) &&
+            self.options.position >= self.out
         )  {
-            togglePaused();
-            setPosition(self.options.out/*, 'video'*/);
-            //ended();
-            self.playInToOut = false;
+            if (self.isPlaylist) {
+                self.$video.playNext();
+            } else {
+                togglePaused();
+                setPosition(self.out/*, 'video'*/);
+                //ended();
+                self.playInToOut = false;
+            }
         } else {
             setPosition(self.options.position, 'video');
         }
@@ -1499,6 +1560,15 @@ Ox.VideoPlayer = function(options, self) {
         }
     }
 
+    function pointschange() {
+        var points = self.$video.points();
+        self['in'] = points[0];
+        self.out = points[1];
+        self.options.duration = self.out - self['in'];
+        setPosition(self['in']);
+        Ox.print('POINTSCHANGE', self['in'], self.out, self.options.position, self.options.duration)
+    }
+
     function progress() {
         var buffered = self.$video.buffered();
         for (var i = 0; i < buffered.length; i++) {
@@ -1555,7 +1625,7 @@ Ox.VideoPlayer = function(options, self) {
     }
 
     function setPosition(position, from) {
-        self.options.position = Ox.limit(position, self['in'], self['out']);
+        self.options.position = Ox.limit(position, self['in'], self.out);
         /*
         self.options.position = Math.round(
             position * self.options.fps
@@ -1686,6 +1756,13 @@ Ox.VideoPlayer = function(options, self) {
         //Ox.print('?!?', self.$subtitle.css('bottom'), self.$subtitle.height())
     }
 
+    function sizechange() {
+        self.videoWidth = self.$video.videoWidth();
+        self.videoHeight = self.$video.videoHeight();
+        self.videoCSS = getVideoCSS();
+        self.$video.css(self.videoCSS);
+    };
+
     function changeVolumeBy(num) {
         showVolume();
         self.options.volume = Ox.limit(self.options.volume + num, 0, 1);
@@ -1781,10 +1858,10 @@ Ox.VideoPlayer = function(options, self) {
         //Ox.print('results', self.results.length);
         if (self.$find) {
             self.$results.html(self.results.length);
-            self.$previousButton.options({
+            self.$previousResultButton.options({
                 disabled: self.results.length <= 1
             });
-            self.$nextButton.options({
+            self.$nextResultButton.options({
                 disabled: self.results.length <= 1
             });
             self.$clearButton.options({
@@ -1801,24 +1878,6 @@ Ox.VideoPlayer = function(options, self) {
         }
     }
 
-    function goToNextResult(direction) {
-        var found = false,
-            position = 0;
-        direction == -1 && self.results.reverse();
-        Ox.forEach(self.results, function(v) {
-            if (direction == 1 ? v['in'] > self.options.position : v['out'] < self.options.position) {
-                position = v['in'];
-                found = true;
-                return false;
-            }
-        });
-        direction == -1 && self.results.reverse();
-        if (!found) {
-            position = self.results[direction == 1 ? 0 : self.results.length - 1]['in'];
-        }
-        setPosition(position + self.secondsPerFrame);
-    }
-
     function submitPositionInput() {
         self.$positionInput.hide();
         self.$position.html('').show();