@netdata/charts
Version:
Netdata frontend SDK and chart utilities
79 lines • 4.61 kB
JavaScript
function _toConsumableArray(r) { return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray(r) || _nonIterableSpread(); }
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _iterableToArray(r) { if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) return Array.from(r); }
function _arrayWithoutHoles(r) { if (Array.isArray(r)) return _arrayLikeToArray(r); }
function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
import { trigger } from "./helpers";
var fillColorMap = {
WARNING: "#FFC300",
CRITICAL: "#FF4136",
CLEAR: "#00AB44"
};
var OVERLAY_ALPHA = 0.3;
var getArea = function getArea(dygraph, startMs, endMs) {
var _dygraph$xAxisRange = dygraph.xAxisRange(),
_dygraph$xAxisRange2 = _slicedToArray(_dygraph$xAxisRange, 2),
viewStart = _dygraph$xAxisRange2[0],
viewEnd = _dygraph$xAxisRange2[1];
if (endMs < viewStart || startMs > viewEnd) return null;
var fromX = Math.max(viewStart, startMs);
var toX = Math.min(viewEnd, endMs);
var from = dygraph.toDomXCoord(fromX);
var to = dygraph.toDomXCoord(toX);
var width = to - from;
return {
from: from,
to: to,
width: width
};
};
var parseTimestamp = function parseTimestamp(timestamp) {
if (typeof timestamp === "number") return timestamp * 1000;
return new Date(timestamp).getTime();
};
export default (function (chartUI, id) {
var overlays = chartUI.chart.getAttribute("overlays");
var _overlays$id = overlays[id],
_overlays$id$transiti = _overlays$id.transitions,
transitions = _overlays$id$transiti === void 0 ? [] : _overlays$id$transiti,
_overlays$id$showClea = _overlays$id.showCleared,
showCleared = _overlays$id$showClea === void 0 ? true : _overlays$id$showClea;
if (!transitions.length) return trigger(chartUI, id);
var dygraph = chartUI.getDygraph();
var _dygraph$getArea = dygraph.getArea(),
h = _dygraph$getArea.h;
var ctx = dygraph.hidden_ctx_;
var _dygraph$xAxisRange3 = dygraph.xAxisRange(),
_dygraph$xAxisRange4 = _slicedToArray(_dygraph$xAxisRange3, 2),
viewEnd = _dygraph$xAxisRange4[1];
var sortedTransitions = _toConsumableArray(transitions).sort(function (a, b) {
return parseTimestamp(a.timestamp) - parseTimestamp(b.timestamp);
});
ctx.save();
ctx.globalAlpha = OVERLAY_ALPHA;
sortedTransitions.forEach(function (transition, index) {
var startMs = parseTimestamp(transition.timestamp);
var nextTransition = sortedTransitions[index + 1];
var endMs = nextTransition ? parseTimestamp(nextTransition.timestamp) : viewEnd;
var toState = transition.to.toUpperCase();
var toColor = fillColorMap[toState];
if (!toColor) return;
if (!showCleared && toState === "CLEAR") return;
var area = getArea(dygraph, startMs, endMs);
if (!area) return;
var from = area.from,
width = area.width;
ctx.beginPath();
ctx.rect(from, 0, width, h);
ctx.fillStyle = toColor;
ctx.fill();
ctx.closePath();
});
ctx.restore();
trigger(chartUI, id);
});