127 lines
4.2 KiB
TypeScript
127 lines
4.2 KiB
TypeScript
/**
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* @license
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import {GestureEventListeners} from '@polymer/polymer/lib/mixins/gesture-event-listeners';
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import {LegacyElementMixin} from '@polymer/polymer/lib/legacy/legacy-element-mixin';
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import {PolymerElement} from '@polymer/polymer/polymer-element';
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import {htmlTemplate} from './gr-coverage-layer_html';
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import {CoverageType} from '../../../types/types';
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import {customElement, property} from '@polymer/decorators';
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declare global {
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interface HTMLElementTagNameMap {
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'gr-coverage-layer': GrCoverageLayer;
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}
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}
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const TOOLTIP_MAP = new Map([
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[CoverageType.COVERED, 'Covered by tests.'],
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[CoverageType.NOT_COVERED, 'Not covered by tests.'],
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[CoverageType.PARTIALLY_COVERED, 'Partially covered by tests.'],
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[CoverageType.NOT_INSTRUMENTED, 'Not instrumented by any tests.'],
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]);
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@customElement('gr-coverage-layer')
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export class GrCoverageLayer extends GestureEventListeners(
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LegacyElementMixin(PolymerElement)
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) {
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static get template() {
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return htmlTemplate;
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}
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/**
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* Must be sorted by code_range.start_line.
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* Must only contain ranges that match the side.
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*
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*/
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// TODO(TS): convert into AnnotationLayer once gr-diff-is converted
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@property({type: Array})
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coverageRanges: any[] = [];
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@property({type: String})
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side?: string;
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/**
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* We keep track of the line number from the previous annotate() call,
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* and also of the index of the coverage range that had matched.
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* annotate() calls are coming in with increasing line numbers and
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* coverage ranges are sorted by line number. So this is a very simple
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* and efficient way for finding the coverage range that matches a given
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* line number.
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*/
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@property({type: Number})
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_lineNumber = 0;
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@property({type: Number})
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_index = 0;
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/**
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* Layer method to add annotations to a line.
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*
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* @param _el Not used for this layer. (unused parameter)
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* @param lineNumberEl The <td> element with the line number.
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* @param line Not used for this layer.
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*/
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annotate(_el: HTMLElement, lineNumberEl: HTMLElement) {
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if (
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!this.side ||
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!lineNumberEl ||
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!lineNumberEl.classList.contains(this.side)
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) {
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return;
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}
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let elementLineNumber;
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const dataValue = lineNumberEl.getAttribute('data-value');
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if (dataValue) {
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elementLineNumber = parseInt(dataValue, 10);
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}
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if (!elementLineNumber || elementLineNumber < 1) return;
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// If the line number is smaller than before, then we have to reset our
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// algorithm and start searching the coverage ranges from the beginning.
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// That happens for example when you expand diff sections.
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if (elementLineNumber < this._lineNumber) {
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this._index = 0;
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}
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this._lineNumber = elementLineNumber;
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// We simply loop through all the coverage ranges until we find one that
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// matches the line number.
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while (this._index < this.coverageRanges.length) {
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const coverageRange = this.coverageRanges[this._index];
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// If the line number has moved past the current coverage range, then
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// try the next coverage range.
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if (this._lineNumber > coverageRange.code_range.end_line) {
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this._index++;
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continue;
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}
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// If the line number has not reached the next coverage range (and the
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// range before also did not match), then this line has not been
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// instrumented. Nothing to do for this line.
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if (this._lineNumber < coverageRange.code_range.start_line) {
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return;
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}
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// The line number is within the current coverage range. Style it!
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lineNumberEl.classList.add(coverageRange.type);
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lineNumberEl.title = TOOLTIP_MAP.get(coverageRange.type) || '';
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return;
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}
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}
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}
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