blob: d0f7ee0949e4523db38b4ea1e93223702713f733 [file] [log] [blame]
/*
* Copyright (C) 2016 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.HeapAllocationsTimelineOverviewGraph = class HeapAllocationsTimelineOverviewGraph extends WI.TimelineOverviewGraph
{
constructor(timeline, timelineOverview)
{
super(timelineOverview);
this.element.classList.add("heap-allocations");
this._heapAllocationsTimeline = timeline;
this._heapAllocationsTimeline.addEventListener(WI.Timeline.Event.RecordAdded, this._heapAllocationTimelineRecordAdded, this);
this._selectedImageElement = null;
this.reset();
}
// Protected
reset()
{
super.reset();
this.element.removeChildren();
}
layout()
{
super.layout();
if (this.hidden)
return;
this.element.removeChildren();
if (this._selectedImageElement) {
this._selectedImageElement.classList.remove("selected");
this._selectedImageElement = null;
}
// This may display records past the current time marker.
let visibleRecords = this._heapAllocationsTimeline.recordsInTimeRange(this.startTime, this.endTime);
if (!visibleRecords.length)
return;
let graphStartTime = this.startTime;
let secondsPerPixel = this.timelineOverview.secondsPerPixel;
function xScale(time) {
return (time - graphStartTime) / secondsPerPixel;
}
for (let record of visibleRecords) {
if (isNaN(record.timestamp))
continue;
const halfImageWidth = 8;
let x = xScale(record.timestamp) - halfImageWidth;
if (x <= 1)
x = 1;
let imageElement = record[WI.HeapAllocationsTimelineOverviewGraph.RecordElementAssociationSymbol];
if (!imageElement) {
imageElement = record[WI.HeapAllocationsTimelineOverviewGraph.RecordElementAssociationSymbol] = document.createElement("img");
imageElement.classList.add("snapshot");
imageElement.addEventListener("click", (event) => {
if (record.heapSnapshot.invalid)
return;
// Ensure that the container "click" listener added by `WI.TimelineOverview` isn't called.
event.__timelineRecordClickEventHandled = true;
this.selectedRecord = record;
});
}
imageElement.style.setProperty(WI.resolvedLayoutDirection() === WI.LayoutDirection.RTL ? "right" : "left", `${x}px`);
if (record.heapSnapshot.invalid)
imageElement.classList.add("invalid");
this.element.appendChild(imageElement);
}
this._updateSnapshotMarkers();
}
updateSelectedRecord()
{
this._updateSnapshotMarkers();
}
// Private
_updateSnapshotMarkers()
{
if (this._selectedImageElement)
this._selectedImageElement.classList.remove("selected");
if (!this.selectedRecord) {
this._selectedImageElement = null;
return;
}
let imageElement = this.selectedRecord[WI.HeapAllocationsTimelineOverviewGraph.RecordElementAssociationSymbol];
if (!imageElement)
return;
imageElement.classList.add("selected");
this._selectedImageElement = imageElement;
}
_heapAllocationTimelineRecordAdded(event)
{
this.needsLayout();
}
};
WI.HeapAllocationsTimelineOverviewGraph.RecordElementAssociationSymbol = Symbol("record-element-association");