oxjs/source/Ox.UI/js/Video/LargeVideoTimeline.js

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'use strict';
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/*@
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Ox.LargeVideoTimeline <f> LargeTimeline Object
([options[, self]]) -> <o:Ox.Element> LargeTimeline Object
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options <o> Options object
self <o> shared private variable
@*/
Ox.LargeVideoTimeline = function(options, self) {
self = self || {};
var that = Ox.Element({}, self)
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.defaults({
cuts: [],
duration: 0,
find: '',
getImageURL: null,
'in': 0,
matches: [],
out: 0,
position: 0,
subtitles: [],
type: '',
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width: 0
})
.options(options || {})
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.update({
find: setSubtitles,
'in': function() {
setPointMarker('in');
},
out: function() {
setPointMarker('out');
},
position: setPosition,
subtitles: setSubtitles,
width: setWidth
})
.addClass('OxLargeVideoTimeline')
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.mouseleave(mouseleave)
.mousemove(mousemove)
.bindEvent({
anyclick: click,
dragstart: dragstart,
drag: drag
});
Ox.extend(self, {
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$cuts: [],
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$pointMarker: {},
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$tiles: {},
$tooltip: Ox.Tooltip({
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animate: false
}),
center: Math.floor(self.options.width / 2),
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element: that.$element[0],
fps: 25,
height: 64,
tileWidth: 1500
});
self.tiles = self.options.duration * self.fps / self.tileWidth;
self.$timeline = $('<div>')
.css({
left: self.center + 'px'
})
.appendTo(that.$element)
setSubtitles();
self.options.cuts.forEach(function(v, i) {
self.$cuts[i] = $('<img>')
.addClass('OxCut')
.attr({
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src: Ox.UI.getImageURL('markerCut')
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})
.css({
left: (v * self.fps) + 'px'
})
.appendTo(self.$timeline)
});
self.$markerPosition = $('<img>')
.addClass('OxMarkerPosition')
.attr({
src: Ox.UI.getImageURL('markerPosition')
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})
.appendTo(that.$element);
setMarker();
['in', 'out'].forEach(function(point) {
var titlecase = Ox.toTitleCase(point);
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self.$pointMarker[point] = $('<img>')
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.addClass('OxMarkerPoint' + titlecase)
.attr({
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src: Ox.UI.getImageURL('marker' + titlecase)
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})
.appendTo(self.$timeline);
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setPointMarker(point);
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});
setWidth();
setPosition();
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function click(data) {
self.options.position = Ox.round(Ox.limit(
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getPosition(data), 0, self.options.duration
), 3);
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setPosition();
triggerPositionEvent();
}
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function dragstart(data) {
self.drag = {x: data.clientX};
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}
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function drag(data) {
self.options.position = Ox.round(Ox.limit(
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self.options.position + (self.drag.x - data.clientX) / self.fps,
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0, self.options.duration
), 3);
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self.drag.x = data.clientX;
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setPosition();
triggerPositionEvent();
}
function getPosition(e) {
return self.options.position + (e.clientX - that.offset().left - self.center - 1) / self.fps;
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}
function mouseleave(e) {
self.clientX = 0;
self.clientY = 0;
self.$tooltip.hide();
}
function mousemove(e) {
self.clientX = e.clientX;
self.clientY = e.clientY;
updateTooltip();
}
function setMarker() {
self.$markerPosition.css({
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left: self.center + 'px'
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});
}
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function setPointMarker(point) {
self.$pointMarker[point].css({
left: (self.options[point] * self.fps) + 'px'
});
}
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function setPosition() {
self.tile = Math.floor(self.options.position * self.fps / self.tileWidth);
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self.$timeline.css({
marginLeft: (-self.options.position * self.fps) + 'px'
});
Ox.loop(
Math.max(self.tile - 1, 0),
Math.min(self.tile + 2, self.tiles),
function(i) {
if (!self.$tiles[i]) {
self.$tiles[i] = $('<img>')
.attr({
src: self.options.getImageURL(self.options.type, i)
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})
.css({
left: (i * self.tileWidth) + 'px'
})
.appendTo(self.$timeline);
}
}
);
if (self.clientX && self.clientY) {
updateTooltip();
}
}
function setSubtitles() {
that.find('.OxSubtitle').remove();
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self.$subtitles = [];
self.options.subtitles.forEach(function(subtitle, i) {
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var found = self.options.find
&& subtitle.text.toLowerCase().indexOf(self.options.find.toLowerCase()) > -1;
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self.$subtitles[i] = $('<div>')
.addClass('OxSubtitle' + (found ? ' OxHighlight' : ''))
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.css({
left: (subtitle['in'] * self.fps) + 'px',
width: (((subtitle.out - subtitle['in']) * self.fps) - 2) + 'px'
})
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.html(Ox.highlight(
subtitle.text, self.options.find, 'OxHighlight'
))
.appendTo(self.$timeline);
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});
}
function setWidth() {
self.center = Math.floor(self.options.width / 2);
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that.css({
width: self.options.width + 'px'
});
self.$timeline.css({
left: self.center + 'px'
});
setMarker();
}
function triggerPositionEvent() {
that.triggerEvent('position', {
position: self.options.position
});
}
function updateTooltip() {
var position = getPosition(self);
if (position >= 0 && position <= self.options.duration) {
self.$tooltip
.options({
title: Ox.formatDuration(position, 3)
})
.show(self.clientX, self.clientY);
} else {
self.$tooltip.hide();
}
}
return that;
};