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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2012 Intel 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
// https://w3c.github.io/hr-time/#the-performance-interface
// TODO(foolip): None of the optional DOMString arguments in this interface
// should have a default value.
[Exposed=(Window,Worker)]
interface Performance : EventTarget {
[Affects=Nothing] DOMHighResTimeStamp now();
readonly attribute DOMHighResTimeStamp timeOrigin;
// Performance Timeline
// https://w3c.github.io/performance-timeline/#the-performance-interface
// TODO(foolip): getEntries() should take an optional FilterOptions argument.
[MeasureAs=PerformanceTimeline] PerformanceEntryList getEntries();
[MeasureAs=PerformanceTimeline] PerformanceEntryList getEntriesByType(DOMString entryType);
[MeasureAs=PerformanceTimeline] PerformanceEntryList getEntriesByName(DOMString name, optional DOMString entryType);
// Resource Timing
// https://w3c.github.io/resource-timing/#extensions-performance-interface
void clearResourceTimings();
void setResourceTimingBufferSize(unsigned long maxSize);
attribute EventHandler onresourcetimingbufferfull;
// Navigation Timing
// https://w3c.github.io/navigation-timing/#extensions-to-the-performance-interface
[Exposed=Window, SameObject, Measure] readonly attribute PerformanceTiming timing;
[Exposed=Window, SameObject, Measure] readonly attribute PerformanceNavigation navigation;
// User Timing
// https://w3c.github.io/user-timing/#extensions-performance-interface
// TODO(https://crbug.com/996275): Once our IDL parser supports it, we need
// to supply a default-value of '{}' to markOptions.
[MeasureAs=UserTiming, CallWith=ScriptState, RaisesException] PerformanceMark mark(DOMString markName, optional PerformanceMarkOptions markOptions = {});
[MeasureAs=UserTiming] void clearMarks(optional DOMString markName);
// TODO(https://crbug.com/996275): Once our IDL parser supports it, we need
// to supply a default-value of '{}' to startOrOptions.
[MeasureAs=UserTiming, CallWith=ScriptState, RaisesException] PerformanceMeasure measure(DOMString measureName, optional (DOMString or PerformanceMeasureOptions) startOrMeasureOptions = {}, optional DOMString endMark);
[MeasureAs=UserTiming] void clearMeasures(optional DOMString measureName);
// TODO(foolip): There is no spec for the Memory Info API, see blink-dev:
// https://groups.google.com/a/chromium.org/d/msg/blink-dev/g5YRCGpC9vs/b4OJz71NmPwJ
[Exposed=Window, Measure] readonly attribute MemoryInfo memory;
[MeasureAs=MeasureMemory, Exposed=Window, CallWith=ScriptState, RuntimeEnabled=MeasureMemory, RaisesException] Promise<MeasureMemory> measureMemory();
// JS Self-Profiling API
// https://github.com/WICG/js-self-profiling/
[MeasureAs=JSSelfProfiling, CallWith=ScriptState, RuntimeEnabled=ExperimentalJSProfiler, RaisesException] Promise<Profiler> profile(ProfilerInitOptions options);
[CallWith=ScriptState, ImplementedAs=toJSONForBinding] object toJSON();
};
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