176 lines
6.2 KiB
JavaScript
176 lines
6.2 KiB
JavaScript
/*
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* Copyright (C) 2015 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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WI.RenderingFrameTimelineRecord = class RenderingFrameTimelineRecord extends WI.TimelineRecord
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{
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constructor(startTime, endTime, name)
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{
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super(WI.TimelineRecord.Type.RenderingFrame, startTime, endTime);
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this._name = name || "";
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this._durationByTaskType = new Map;
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this._frameIndex = -1;
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}
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// Static
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static resetFrameIndex()
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{
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WI.RenderingFrameTimelineRecord._nextFrameIndex = 0;
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}
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static displayNameForTaskType(taskType)
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{
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switch (taskType) {
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case WI.RenderingFrameTimelineRecord.TaskType.Script:
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return WI.UIString("Script");
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case WI.RenderingFrameTimelineRecord.TaskType.Layout:
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return WI.repeatedUIString.timelineRecordLayout();
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case WI.RenderingFrameTimelineRecord.TaskType.Paint:
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return WI.repeatedUIString.timelineRecordPaint();
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case WI.RenderingFrameTimelineRecord.TaskType.Other:
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return WI.UIString("Other");
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}
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}
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static taskTypeForTimelineRecord(record)
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{
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switch (record.type) {
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case WI.TimelineRecord.Type.Script:
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return WI.RenderingFrameTimelineRecord.TaskType.Script;
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case WI.TimelineRecord.Type.Layout:
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if (record.eventType === WI.LayoutTimelineRecord.EventType.Paint || record.eventType === WI.LayoutTimelineRecord.EventType.Composite)
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return WI.RenderingFrameTimelineRecord.TaskType.Paint;
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return WI.RenderingFrameTimelineRecord.TaskType.Layout;
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default:
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console.error("Unsupported timeline record type: " + record.type);
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return null;
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}
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}
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// Import / Export
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static async fromJSON(json)
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{
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let {startTime, endTime} = json;
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let record = new WI.RenderingFrameTimelineRecord(startTime, endTime);
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record.setupFrameIndex();
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return record;
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}
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toJSON()
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{
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// FIXME: durationByTaskType data cannot be calculated if this does not have children.
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return {
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type: this.type,
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startTime: this.startTime,
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endTime: this.endTime,
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};
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}
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// Public
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get frameIndex()
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{
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return this._frameIndex;
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}
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get frameNumber()
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{
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return this._frameIndex + 1;
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}
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get name()
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{
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return this._name;
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}
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setupFrameIndex()
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{
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console.assert(this._frameIndex === -1, "Frame index should only be set once.");
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if (this._frameIndex >= 0)
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return;
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this._frameIndex = WI.RenderingFrameTimelineRecord._nextFrameIndex++;
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}
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durationForTask(taskType)
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{
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if (this._durationByTaskType.has(taskType))
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return this._durationByTaskType.get(taskType);
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var duration;
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if (taskType === WI.RenderingFrameTimelineRecord.TaskType.Other)
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duration = this._calculateDurationRemainder();
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else {
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duration = this.children.reduce(function(previousValue, currentValue) {
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if (taskType !== WI.RenderingFrameTimelineRecord.taskTypeForTimelineRecord(currentValue))
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return previousValue;
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var currentDuration = currentValue.duration;
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if (currentValue.usesActiveStartTime)
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currentDuration -= currentValue.inactiveDuration;
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return previousValue + currentDuration;
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}, 0);
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if (taskType === WI.RenderingFrameTimelineRecord.TaskType.Script) {
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// Layout events synchronously triggered from JavaScript must be subtracted from the total
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// script time, to prevent the time from being counted twice.
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duration -= this.children.reduce(function(previousValue, currentValue) {
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if (currentValue.type === WI.TimelineRecord.Type.Layout && (currentValue.sourceCodeLocation || currentValue.callFrames))
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return previousValue + currentValue.duration;
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return previousValue;
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}, 0);
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}
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}
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this._durationByTaskType.set(taskType, duration);
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return duration;
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}
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// Private
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_calculateDurationRemainder()
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{
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return Object.keys(WI.RenderingFrameTimelineRecord.TaskType).reduce((previousValue, key) => {
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let taskType = WI.RenderingFrameTimelineRecord.TaskType[key];
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if (taskType === WI.RenderingFrameTimelineRecord.TaskType.Other)
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return previousValue;
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return previousValue - this.durationForTask(taskType);
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}, this.duration);
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}
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};
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WI.RenderingFrameTimelineRecord.TaskType = {
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Script: "rendering-frame-timeline-record-script",
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Layout: "rendering-frame-timeline-record-layout",
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Paint: "rendering-frame-timeline-record-paint",
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Other: "rendering-frame-timeline-record-other"
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};
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WI.RenderingFrameTimelineRecord.TypeIdentifier = "rendering-frame-timeline-record";
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WI.RenderingFrameTimelineRecord._nextFrameIndex = 0;
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