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// Copyright (C) 2022 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import {PluginContext} from '../../common/plugin_api';
import {NewTrackArgs, Track} from '../../frontend/track';
export const NULL_TRACK_KIND = 'NullTrack';
export class NullTrack extends Track {
static readonly kind = NULL_TRACK_KIND;
constructor(args: NewTrackArgs) {
super(args);
this.frontendOnly = true;
}
static create(args: NewTrackArgs): NullTrack {
return new NullTrack(args);
}
getHeight(): number {
return 30;
}
renderCanvas(_: CanvasRenderingContext2D): void {}
}
function activate(ctx: PluginContext) {
ctx.registerTrack(NullTrack);
}
export const plugin = {
pluginId: 'perfetto.NullTrack',
activate,
};
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