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// http://blog.vjeux.com/2013/javascript/scroll-position-with-react.html (also contains inverse example)
var AutoScrollMixin = {
componentWillUpdate: function () {
var node = this.getDOMNode();
this._shouldScrollBottom = node.scrollTop + node.clientHeight === node.scrollHeight;
},
componentDidUpdate: function () {
if (this._shouldScrollBottom) {
var node = this.getDOMNode();
node.scrollTop = node.scrollHeight;
}
},
};
var StickyHeadMixin = {
adjustHead: function () {
// Abusing CSS transforms to set the element
// referenced as head into some kind of position:sticky.
var head = this.refs.head.getDOMNode();
head.style.transform = "translate(0," + this.getDOMNode().scrollTop + "px)";
}
};
var Key = {
UP: 38,
DOWN: 40,
PAGE_UP: 33,
PAGE_DOWN: 34,
LEFT: 37,
RIGHT: 39,
ENTER: 13,
ESC: 27,
TAB: 9,
SPACE: 32,
J: 74,
K: 75,
H: 72,
L: 76
};
var formatSize = function (bytes) {
var size = bytes;
var prefix = ["B", "KB", "MB", "GB", "TB"];
var i = 0;
while (Math.abs(size) >= 1024 && i < prefix.length - 1) {
i++;
size = size / 1024;
}
return (Math.floor(size * 100) / 100.0).toFixed(2) + prefix[i];
};
var formatTimeDelta = function (milliseconds) {
var time = milliseconds;
var prefix = ["ms", "s", "min", "h"];
var div = [1000, 60, 60];
var i = 0;
while (Math.abs(time) >= div[i] && i < div.length) {
time = time / div[i];
i++;
}
return Math.round(time) + prefix[i];
};
var formatTimeStamp = function (seconds) {
var ts = (new Date(seconds * 1000)).toISOString();
return ts.replace("T", " ").replace("Z", "");
};
function EventEmitter() {
this.listeners = {};
}
EventEmitter.prototype.emit = function (event) {
if (!(event in this.listeners)) {
return;
}
var args = Array.prototype.slice.call(arguments, 1);
this.listeners[event].forEach(function (listener) {
listener.apply(this, args);
}.bind(this));
};
EventEmitter.prototype.addListener = function (events, f) {
events.split(" ").forEach(function (event) {
this.listeners[event] = this.listeners[event] || [];
this.listeners[event].push(f);
}.bind(this));
};
EventEmitter.prototype.removeListener = function (events, f) {
if (!(events in this.listeners)) {
return false;
}
events.split(" ").forEach(function (event) {
var index = this.listeners[event].indexOf(f);
if (index >= 0) {
this.listeners[event].splice(index, 1);
}
}.bind(this));
};
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