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// Copyright (C) 2019 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 {searchSegment} from '../base/binary_search';
import {Actions} from '../common/actions';
import {toNs} from '../common/time';
import {globals} from './globals';
function setToPrevious(current: number) {
let index = current - 1;
if (index < 0) {
index = globals.currentSearchResults.totalResults - 1;
}
globals.dispatch(Actions.setSearchIndex({index}));
}
function setToNext(current: number) {
const index =
(current + 1) % globals.currentSearchResults.totalResults;
globals.dispatch(Actions.setSearchIndex({index}));
}
export function executeSearch(reverse = false) {
const index = globals.state.searchIndex;
const startNs = toNs(globals.frontendLocalState.visibleWindowTime.start);
const endNs = toNs(globals.frontendLocalState.visibleWindowTime.end);
const currentTs = globals.currentSearchResults.tsStarts[index];
// If the value of |globals.currentSearchResults.totalResults| is 0,
// it means that the query is in progress or no results are found.
if (globals.currentSearchResults.totalResults === 0) {
return;
}
// If this is a new search or the currentTs is not in the viewport,
// select the first/last item in the viewport.
if (index === -1 || currentTs < startNs || currentTs > endNs) {
if (reverse) {
const [smaller] =
searchSegment(globals.currentSearchResults.tsStarts, endNs);
// If there is no item in the viewport just go to the previous.
if (smaller === -1) {
setToPrevious(index);
} else {
globals.dispatch(Actions.setSearchIndex({index: smaller}));
}
} else {
const [, larger] =
searchSegment(globals.currentSearchResults.tsStarts, startNs);
// If there is no item in the viewport just go to the next.
if (larger === -1) {
setToNext(index);
} else {
globals.dispatch(Actions.setSearchIndex({index: larger}));
}
}
} else {
// If the currentTs is in the viewport, increment the index.
if (reverse) {
setToPrevious(index);
} else {
setToNext(index);
}
}
selectCurrentSearchResult();
}
function selectCurrentSearchResult() {
const searchIndex = globals.state.searchIndex;
const source = globals.currentSearchResults.sources[searchIndex];
const currentId = globals.currentSearchResults.sliceIds[searchIndex];
const trackId = globals.currentSearchResults.trackIds[searchIndex];
if (currentId === undefined) return;
if (source === 'cpu') {
globals.dispatch(
Actions.selectSlice({id: currentId, trackId, scroll: true}));
} else if (source === 'log') {
globals.dispatch(Actions.selectLog({id: currentId, trackId, scroll: true}));
} else {
// Search results only include slices from the slice table for now.
// When we include annotations we need to pass the correct table.
globals.dispatch(Actions.selectChromeSlice(
{id: currentId, trackId, table: 'slice', scroll: true}));
}
}
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