377 lines
12 KiB
JavaScript
377 lines
12 KiB
JavaScript
// vim: et:ts=4:sw=4:sts=4:ft=javascript
|
|
|
|
Ox.VideoElement = function(options, self) {
|
|
|
|
self = self || {};
|
|
var that = Ox.Element({}, self)
|
|
.defaults({
|
|
autoplay: false,
|
|
preload: 'none',
|
|
src: []
|
|
})
|
|
.options(options || {});
|
|
|
|
Ox.print('VIDEO ELEMENT OPTIONS', self.options)
|
|
|
|
self.items = [];
|
|
self.paused = true;
|
|
self.$video = $('<div>');
|
|
|
|
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
|
|
}
|
|
});
|
|
});
|
|
} else {
|
|
self.numberOfItems = 1;
|
|
self.items.push(loadItem(self.options.src));
|
|
}
|
|
|
|
function getCurrentPage() {
|
|
return Math.floor(self.currentItem / self.pageLength);
|
|
}
|
|
|
|
function getCurrentTime() {
|
|
return self.items[self.currentItem].offsets[self.currentPart] + self.video.currentTime;
|
|
}
|
|
|
|
function getset(key, value) {
|
|
var ret;
|
|
if (Ox.isUndefined(value)) {
|
|
ret = self.video[key]
|
|
} else {
|
|
self.video[key] = value;
|
|
ret = that;
|
|
}
|
|
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 $('<video>')
|
|
.css({position: 'absolute'})
|
|
.bind({
|
|
ended: function() {
|
|
Ox.print('ENDED', i, item.parts)
|
|
if (i < item.parts - 1) {
|
|
setCurrentPart(self.currentPart + 1);
|
|
self.video.play();
|
|
} /*else if (self.isPlaylist) {
|
|
setCurrentItem(self.currentItem + 1);
|
|
self.video.play();
|
|
}*/ else {
|
|
self.ended = true;
|
|
self.paused = true;
|
|
that.triggerEvent('ended');
|
|
}
|
|
},
|
|
loadedmetadata: function() {
|
|
item.durations[i] = item.videos[i].duration;
|
|
if (self.isPlaylist && i == 0) {
|
|
item.videos[0].currentTime = item.points[0];
|
|
}
|
|
if (Ox.every(item.durations)) {
|
|
item.duration = Ox.sum(item.durations);
|
|
item.offsets = Ox.range(item.parts).map(function(i) {
|
|
return Ox.sum(Ox.sub(item.durations, 0, i));
|
|
});
|
|
//Ox.print('METADATA OF', src, 'LOADED', item)
|
|
if (self.isPlaylist) {
|
|
callback && callback();
|
|
} else {
|
|
setCurrentItem(0);
|
|
that.triggerEvent('loadedmetadata');
|
|
}
|
|
}
|
|
},
|
|
progress: function() {
|
|
// not implemented
|
|
},
|
|
seeked: function() {
|
|
that.triggerEvent('seeked');
|
|
},
|
|
seeking: function() {
|
|
that.triggerEvent('seeking');
|
|
},
|
|
stop: function() {
|
|
// custom event to be triggered on removal from the DOM
|
|
self.video.pause();
|
|
self.video.src = '';
|
|
that.triggerEvent('ended');
|
|
}
|
|
})
|
|
.attr(Ox.extend({
|
|
preload: 'metadata',
|
|
src: src
|
|
}, i == 0 && self.options.autoplay ? {
|
|
autoplay: 'autoplay'
|
|
} : {}))
|
|
.hide()
|
|
.appendTo(that.$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);
|
|
});
|
|
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;
|
|
Ox.print('sCP', part, self.video.src)
|
|
}
|
|
|
|
function setCurrentTime(time) {
|
|
Ox.print('sCT', 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 - item.offsets[i];
|
|
return false;
|
|
}
|
|
});
|
|
Ox.print('sCT', time, currentPart, currentTime);
|
|
if (currentPart != self.currentPart) {
|
|
setCurrentPart(currentPart);
|
|
}
|
|
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.$video, arguments);
|
|
return that;
|
|
}
|
|
|
|
that.buffered = function() {
|
|
return self.video.buffered;
|
|
};
|
|
|
|
that.currentTime = function() {
|
|
var ret;
|
|
self.ended = false;
|
|
if (arguments.length == 0) {
|
|
ret = getCurrentTime();
|
|
} else {
|
|
setCurrentTime(arguments[0]);
|
|
ret = that;
|
|
}
|
|
return ret;
|
|
};
|
|
|
|
that.css = function() {
|
|
var interval;
|
|
if (self.$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() {
|
|
// 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();
|
|
return that;
|
|
};
|
|
|
|
that.play = function() {
|
|
if (self.ended) {
|
|
that.currentTime(0);
|
|
self.ended = false;
|
|
}
|
|
self.paused = false;
|
|
self.video.play();
|
|
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) {
|
|
ret = self.video.src;
|
|
} else {
|
|
self.options.src = Ox.isArray(arguments[0]) ? arguments[0] : [arguments[0]];
|
|
self.videos[currentPart].src = self.options.src[currentPart];
|
|
self.videos.forEach(function(video, i) {
|
|
if (i != currentPart) {
|
|
video.src = self.options.src[i];
|
|
}
|
|
})
|
|
ret = that;
|
|
}
|
|
return ret;
|
|
};
|
|
|
|
that.videoHeight = function() {
|
|
return self.video.videoHeight;
|
|
};
|
|
|
|
that.videoWidth = function() {
|
|
return self.video.videoWidth;
|
|
};
|
|
|
|
that.volume = function(value) {
|
|
return getset('volume', arguments[0]);
|
|
}
|
|
|
|
return that;
|
|
|
|
};
|