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

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'use strict';
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/*@
Ox.BlockVideoTimeline <function> Block Video Timeline
(options[, self]) -> <o> Block Video Timeline
options <o> Options
self <o> Shared private variable
@*/
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Ox.BlockVideoTimeline = function(options, self) {
self = self || {};
var that = Ox.Element({}, self)
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.defaults({
duration: 0,
find: '',
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getImageURL: null,
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'in': 0,
out: 0,
position: 0,
results: [],
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showPointMarkers: false,
state: 'default',
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subtitles: [],
type: '',
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width: 0
})
.options(options || {})
.addClass('OxBlockVideoTimeline')
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.css({
position: 'absolute',
})
.bind({
mousedown: mousedown,
mouseleave: mouseleave,
mousemove: mousemove
})
.bindEvent({
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doubleclick: doubleclick,
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drag: function(data) {
mousedown(data);
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}
});
self.$images = [];
self.$interfaces = [];
self.$lines = [];
self.$tooltip = Ox.Tooltip({
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animate: false
})
.css({
textAlign: 'center'
});
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self.height = 16;
self.lines = getLines();
self.margin = 8;
setCSS();
self.$image = Ox.SmallVideoTimelineImage({
duration: self.options.duration,
editing: self.options.editing,
imageURL: self.options.getImageURL,
'in': self.options['in'],
mode: 'editor',
out: self.options.out,
results: self.options.results,
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state: self.options.state,
subtitles: self.options.subtitles,
type: self.options.type,
width: Math.round(self.options.duration)
});
Ox.loop(self.lines, function(i) {
addLine(i);
});
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self.$positionMarker = $('<img>')
.attr({
src: Ox.UI.getImageURL('markerPosition')
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})
.addClass('OxMarkerPosition')
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.appendTo(that.$element);
setPositionMarker();
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if (self.options.showPointMarkers) {
self.$pointMarker = {};
['in', 'out'].forEach(function(point) {
var titlecase = Ox.toTitleCase(point);
self.$pointMarker[point] = $('<img>')
.addClass('OxMarkerPoint' + titlecase)
.attr({
src: Ox.UI.getImageURL('marker' + titlecase)
})
.appendTo(that.$element);
setPointMarker(point);
});
}
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function addLine(i) {
self.$lines[i] = $('<div>')
.css({
position: 'absolute',
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left: self.margin / 2 + 'px',
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top: i * (self.height + self.margin) + 'px',
width: self.options.width + 'px',
height: '24px',
overflow: 'hidden'
})
.appendTo(that.$element);
self.$images[i] = self.$image.clone()
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.css({
position: 'absolute',
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marginLeft: -i * self.options.width + 'px'
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})
.appendTo(self.$lines[i]);
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self.$interfaces[i] = $('<div>')
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// OxTarget and OxSpecialTarget are needed for InfoList
.addClass('OxInterface OxTarget OxSpecialTarget')
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.css({
top: '2px',
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width: Math.round(self.options.duration) + 'px',
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height: '20px',
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marginLeft: -i * self.options.width + 'px',
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//background: 'rgba(255, 0, 0, 0.1)',
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})
.appendTo(self.$lines[i]);
}
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function doubleclick(e) {
var position;
if ($(e.target).is('.OxInterface')) {
position = getPosition(e);
if (
self.options.state == 'selected'
&& position >= self.options['in']
&& position <= self.options.out
) {
that.triggerEvent('edit');
} else if (self.options.state != 'editing') {
that.triggerEvent('select');
}
}
}
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function getLines() {
return Math.ceil(self.options.duration / self.options.width);
}
function getPosition(e) {
//FIXME: this might still be broken in opera according to http://acko.net/blog/mouse-handling-and-absolute-positions-in-javascript
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return e.offsetX ? e.offsetX
: e.clientX - $(e.target).offset().left;
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}
function getSubtitle(position) {
var subtitle = '';
Ox.forEach(self.options.subtitles, function(v) {
if (v['in'] <= position && v.out > position) {
subtitle = v;
return false;
}
});
return subtitle;
}
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function getTooltip(e) {
}
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function mousedown(e) {
if ($(e.target).is('.OxInterface')) {
self.options.position = getPosition(e);
setPositionMarker();
// fixme: check if this pattern is better
// than the one used for list selection
if (!self.triggered) {
that.triggerEvent('position', {
position: self.options.position
});
self.triggered = true;
setTimeout(function() {
self.triggered = false;
}, 250);
}
}
}
function mouseleave() {
self.$tooltip.hide();
}
function mousemove(e) {
var position, subtitle;
if ($(e.target).is('.OxInterface')) {
position = getPosition(e);
subtitle = getSubtitle(position);
self.$tooltip.options({
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title: subtitle
? '<span class=\'OxBright\'>' +
Ox.highlight(subtitle.text, self.options.find, 'OxHighlight').replace(/\n/g, '<br/>') +
'</span><br/>' +
Ox.formatDuration(subtitle['in'], 3) + ' - '
+ Ox.formatDuration(subtitle['out'], 3)
: Ox.formatDuration(position)
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})
.show(e.clientX, e.clientY);
} else {
self.$tooltip.hide();
}
}
function setCSS() {
that.css({
width: (self.options.width + self.margin) + 'px',
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height: ((self.height + self.margin) * self.lines) + 4 + 'px'
// fixme: the + 4 represent the margin-bottom in the video editor
// is there a better way to get a proper margin-bottom?
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});
}
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function setPoint(point) {
setPointMarker(point);
self.$image.options(point, self.options[point]);
updateTimelines();
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}
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function setPointMarker(point) {
var position = Math.round(self.options[point]);
self.$pointMarker[point].css({
left: (position % self.options.width) + 'px',
top: (parseInt(position / self.options.width) *
(self.height + self.margin) + 15) + 'px'
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});
}
function setPositionMarker() {
var position = Math.round(self.options.position);
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self.$positionMarker.css({
left: (position % self.options.width) - 1 + 'px',
top: (parseInt(position / self.options.width) *
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(self.height + self.margin) + 2) + 'px'
});
}
function setResults() {
self.$image.options({results: self.options.results});
updateTimelines();
}
function setState() {
self.$image.options({state: self.options.state});
updateTimelines();
}
function setSubtitles() {
self.$image.options({subtitles: self.options.subtitles});
updateTimelines();
}
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function setWidth() {
self.lines = getLines();
setCSS();
Ox.loop(self.lines, function(i) {
if (self.$lines[i]) {
self.$lines[i].css({
width: self.options.width + 'px'
});
self.$images[i].css({
marginLeft: (-i * self.options.width) + 'px'
});
self.$interfaces[i].css({
marginLeft: (-i * self.options.width) + 'px'
});
} else {
addLine(i);
}
});
while (self.$lines.length > self.lines) {
self.$lines[self.$lines.length - 1].remove();
self.$lines.pop();
self.$images.pop();
}
setPositionMarker();
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if (self.options.showPointMarkers) {
setPointMarker('in');
setPointMarker('out');
}
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}
function updateTimelines() {
self.$lines.forEach(function($line, i) {
$($line.children()[0]).replaceWith(
self.$images[i] = self.$image.clone()
.css({
position: 'absolute',
marginLeft: (-i * self.options.width) + 'px'
})
);
});
}
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self.setOption = function(key, value) {
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if (key == 'in' || key == 'out') {
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self.options.showPointMarkers && setPoint(key);
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} else if (key == 'position') {
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setPositionMarker();
} else if (key == 'results') {
setResults();
} else if (key == 'subtitles') {
setSubtitles();
} else if (key == 'state') {
setState();
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} else if (key == 'width') {
setWidth();
}
};
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return that;
};