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// Copyright 2015 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import { Source, SourceResolver, sourcePositionToStringKey } from "../src/source-resolver"; import { SelectionBroker } from "../src/selection-broker"; import { View } from "../src/view"; import { MySelection } from "../src/selection"; import { ViewElements } from "../src/util"; import { SelectionHandler } from "./selection-handler"; export enum CodeMode { MAIN_SOURCE = "main function", INLINED_SOURCE = "inlined function" } export class CodeView extends View { broker: SelectionBroker; source: Source; sourceResolver: SourceResolver; codeMode: CodeMode; sourcePositionToHtmlElement: Map<string, HTMLElement>; showAdditionalInliningPosition: boolean; selectionHandler: SelectionHandler; selection: MySelection; createViewElement() { const sourceContainer = document.createElement("div"); sourceContainer.classList.add("source-container"); return sourceContainer; } constructor(parent: HTMLElement, broker: SelectionBroker, sourceResolver: SourceResolver, sourceFunction: Source, codeMode: CodeMode) { super(parent); const view = this; view.broker = broker; view.sourceResolver = sourceResolver; view.source = sourceFunction; view.codeMode = codeMode; this.sourcePositionToHtmlElement = new Map(); this.showAdditionalInliningPosition = false; const selectionHandler = { clear: function () { view.selection.clear(); view.updateSelection(); broker.broadcastClear(this); }, select: function (sourcePositions, selected) { const locations = []; for (const sourcePosition of sourcePositions) { locations.push(sourcePosition); sourceResolver.addInliningPositions(sourcePosition, locations); } if (locations.length == 0) return; view.selection.select(locations, selected); view.updateSelection(); broker.broadcastSourcePositionSelect(this, locations, selected); }, brokeredSourcePositionSelect: function (locations, selected) { const firstSelect = view.selection.isEmpty(); for (const location of locations) { const translated = sourceResolver.translateToSourceId(view.source.sourceId, location); if (!translated) continue; view.selection.select([translated], selected); } view.updateSelection(firstSelect); }, brokeredClear: function () { view.selection.clear(); view.updateSelection(); }, }; view.selection = new MySelection(sourcePositionToStringKey); broker.addSourcePositionHandler(selectionHandler); this.selectionHandler = selectionHandler; this.initializeCode(); } addHtmlElementToSourcePosition(sourcePosition, element) { const key = sourcePositionToStringKey(sourcePosition); if (this.sourcePositionToHtmlElement.has(key)) { console.log("Warning: duplicate source position", sourcePosition); } this.sourcePositionToHtmlElement.set(key, element); } getHtmlElementForSourcePosition(sourcePosition) { const key = sourcePositionToStringKey(sourcePosition); return this.sourcePositionToHtmlElement.get(key); } updateSelection(scrollIntoView: boolean = false): void { const mkVisible = new ViewElements(this.divNode.parentNode as HTMLElement); for (const [sp, el] of this.sourcePositionToHtmlElement.entries()) { const isSelected = this.selection.isKeySelected(sp); mkVisible.consider(el, isSelected); el.classList.toggle("selected", isSelected); } mkVisible.apply(scrollIntoView); } getCodeHtmlElementName() { return `source-pre-${this.source.sourceId}`; } getCodeHeaderHtmlElementName() { return `source-pre-${this.source.sourceId}-header`; } getHtmlCodeLines(): NodeListOf<HTMLElement> { const ordereList = this.divNode.querySelector(`#${this.getCodeHtmlElementName()} ol`); return ordereList.childNodes as NodeListOf<HTMLElement>; } onSelectLine(lineNumber: number, doClear: boolean) { if (doClear) { this.selectionHandler.clear(); } const positions = this.sourceResolver.linetoSourcePositions(lineNumber - 1); if (positions !== undefined) { this.selectionHandler.select(positions, undefined); } } onSelectSourcePosition(sourcePosition, doClear: boolean) { if (doClear) { this.selectionHandler.clear(); } this.selectionHandler.select([sourcePosition], undefined); } initializeCode() { const view = this; const source = this.source; const sourceText = source.sourceText; if (!sourceText) return; const sourceContainer = view.divNode; if (this.codeMode == CodeMode.MAIN_SOURCE) { sourceContainer.classList.add("main-source"); } else { sourceContainer.classList.add("inlined-source"); } const codeHeader = document.createElement("div"); codeHeader.setAttribute("id", this.getCodeHeaderHtmlElementName()); codeHeader.classList.add("code-header"); const codeFileFunction = document.createElement("div"); codeFileFunction.classList.add("code-file-function"); codeFileFunction.innerHTML = `${source.sourceName}:${source.functionName}`; codeHeader.appendChild(codeFileFunction); const codeModeDiv = document.createElement("div"); codeModeDiv.classList.add("code-mode"); codeModeDiv.innerHTML = `${this.codeMode}`; codeHeader.appendChild(codeModeDiv); const clearDiv = document.createElement("div"); clearDiv.style.clear = "both"; codeHeader.appendChild(clearDiv); sourceContainer.appendChild(codeHeader); const codePre = document.createElement("pre"); codePre.setAttribute("id", this.getCodeHtmlElementName()); codePre.classList.add("prettyprint"); sourceContainer.appendChild(codePre); codeHeader.onclick = function myFunction() { if (codePre.style.display === "none") { codePre.style.display = "block"; } else { codePre.style.display = "none"; } }; if (sourceText != "") { codePre.classList.add("linenums"); codePre.textContent = sourceText; try { // Wrap in try to work when offline. PR.prettyPrint(undefined, sourceContainer); } catch (e) { console.log(e); } view.divNode.onclick = function (e: MouseEvent) { if (e.target instanceof Element && e.target.tagName == "DIV") { const targetDiv = e.target as HTMLDivElement; if (targetDiv.classList.contains("line-number")) { e.stopPropagation(); view.onSelectLine(Number(targetDiv.dataset.lineNumber), !e.shiftKey); } } else { view.selectionHandler.clear(); } }; const base: number = source.startPosition; let current = 0; const lineListDiv = this.getHtmlCodeLines(); let newlineAdjust = 0; for (let i = 0; i < lineListDiv.length; i++) { // Line numbers are not zero-based. const lineNumber = i + 1; const currentLineElement = lineListDiv[i]; currentLineElement.id = "li" + i; currentLineElement.dataset.lineNumber = "" + lineNumber; const spans = currentLineElement.childNodes; for (const currentSpan of spans) { if (currentSpan instanceof HTMLSpanElement) { const pos = base + current; const end = pos + currentSpan.textContent.length; current += currentSpan.textContent.length; this.insertSourcePositions(currentSpan, lineNumber, pos, end, newlineAdjust); newlineAdjust = 0; } } this.insertLineNumber(currentLineElement, lineNumber); while ((current < sourceText.length) && (sourceText[current] == '\n' || sourceText[current] == '\r')) { ++current; ++newlineAdjust; } } } } insertSourcePositions(currentSpan, lineNumber, pos, end, adjust) { const view = this; const sps = this.sourceResolver.sourcePositionsInRange(this.source.sourceId, pos - adjust, end); let offset = 0; for (const sourcePosition of sps) { this.sourceResolver.addAnyPositionToLine(lineNumber, sourcePosition); const textnode = currentSpan.tagName == 'SPAN' ? currentSpan.lastChild : currentSpan; if (!(textnode instanceof Text)) continue; const splitLength = Math.max(0, sourcePosition.scriptOffset - pos - offset); offset += splitLength; const replacementNode = textnode.splitText(splitLength); const span = document.createElement('span'); span.setAttribute("scriptOffset", sourcePosition.scriptOffset); span.classList.add("source-position"); const marker = document.createElement('span'); marker.classList.add("marker"); span.appendChild(marker); const inlining = this.sourceResolver.getInliningForPosition(sourcePosition); if (inlining != undefined && view.showAdditionalInliningPosition) { const sourceName = this.sourceResolver.getSourceName(inlining.sourceId); const inliningMarker = document.createElement('span'); inliningMarker.classList.add("inlining-marker"); inliningMarker.setAttribute("data-descr", `${sourceName} was inlined here`); span.appendChild(inliningMarker); } span.onclick = function (e) { e.stopPropagation(); view.onSelectSourcePosition(sourcePosition, !e.shiftKey); }; view.addHtmlElementToSourcePosition(sourcePosition, span); textnode.parentNode.insertBefore(span, replacementNode); } } insertLineNumber(lineElement: HTMLElement, lineNumber: number) { const view = this; const lineNumberElement = document.createElement("div"); lineNumberElement.classList.add("line-number"); lineNumberElement.dataset.lineNumber = `${lineNumber}`; lineNumberElement.innerText = `${lineNumber}`; lineElement.insertBefore(lineNumberElement, lineElement.firstChild); // Don't add lines to source positions of not in backwardsCompatibility mode. if (this.source.backwardsCompatibility === true) { for (const sourcePosition of this.sourceResolver.linetoSourcePositions(lineNumber - 1)) { view.addHtmlElementToSourcePosition(sourcePosition, lineElement); } } } }