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/*
* Copyright (C) 2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
WI.CPUUsageView = class CPUUsageView extends WI.View
{
constructor(displayName)
{
super();
this.element.classList.add("cpu-usage-view");
this._detailsElement = this.element.appendChild(document.createElement("div"));
this._detailsElement.classList.add("details");
if (displayName) {
let detailsNameElement = this._detailsElement.appendChild(document.createElement("span"));
detailsNameElement.classList.add("name");
detailsNameElement.textContent = displayName;
if (displayName.length >= 20)
detailsNameElement.title = displayName;
this._detailsElement.appendChild(document.createElement("br"));
}
this._detailsAverageElement = this._detailsElement.appendChild(document.createElement("span"));
this._detailsElement.appendChild(document.createElement("br"));
this._detailsUsageElement = this._detailsElement.appendChild(document.createElement("span"));
this.clearLegend();
this._updateDetails(NaN);
this._graphElement = this.element.appendChild(document.createElement("div"));
this._graphElement.classList.add("graph");
this._chart = new WI.AreaChart;
this.addSubview(this._chart);
this._graphElement.appendChild(this._chart.element);
}
// Public
get graphElement() { return this._graphElement; }
get chart() { return this._chart; }
clear()
{
this._cachedAverageSize = undefined;
this._updateDetails(NaN);
this.clearLegend();
this._chart.clear();
this._chart.needsLayout();
}
updateChart(dataPoints, size, visibleEndTime, min, max, average, xScale, yScale, property)
{
console.assert(size instanceof WI.Size);
console.assert(min >= 0);
console.assert(max >= 0);
console.assert(min <= max);
console.assert(min <= average && average <= max);
console.assert(property, "CPUUsageView needs a property of the dataPoints to graph");
this._updateDetails(average);
this._chart.clearPoints();
this._chart.size = size;
this._chart.needsLayout();
if (!dataPoints.length)
return;
// Ensure an empty graph is empty.
if (!max)
return;
// Extend the first data point to the start so it doesn't look like we originate at zero size.
let firstX = 0;
let firstY = yScale(dataPoints[0][property]);
this._chart.addPoint(firstX, firstY);
// Points for data points.
for (let dataPoint of dataPoints) {
let x = xScale(dataPoint.time);
let y = yScale(dataPoint[property]);
this._chart.addPoint(x, y);
}
// Extend the last data point to the end time.
let lastDataPoint = dataPoints.lastValue;
let lastX = Math.floor(xScale(visibleEndTime));
let lastY = yScale(lastDataPoint[property]);
this._chart.addPoint(lastX, lastY);
}
clearLegend()
{
this._detailsUsageElement.hidden = true;
this._detailsUsageElement.textContent = emDash;
}
updateLegend(value)
{
let usage = Number.isFinite(value) ? Number.percentageString(value / 100) : emDash;
this._detailsUsageElement.hidden = false;
this._detailsUsageElement.textContent = WI.UIString("Usage: %s").format(usage);
}
// Private
_updateDetails(averageSize)
{
if (this._cachedAverageSize === averageSize)
return;
this._cachedAverageSize = averageSize;
this._detailsAverageElement.hidden = !Number.isFinite(averageSize);
this._detailsAverageElement.textContent = WI.UIString("Average: %s").format(Number.isFinite(averageSize) ? Number.percentageString(averageSize / 100) : emDash);
}
};
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