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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 { PhaseView } from "../src/view";
import { anyToString, ViewElements, isIterable } from "../src/util";
import { MySelection } from "../src/selection";
import { SourceResolver } from "./source-resolver";
import { SelectionBroker } from "./selection-broker";
import { NodeSelectionHandler, BlockSelectionHandler } from "./selection-handler";
export abstract class TextView extends PhaseView {
selectionHandler: NodeSelectionHandler;
blockSelectionHandler: BlockSelectionHandler;
selection: MySelection;
blockSelection: MySelection;
textListNode: HTMLUListElement;
nodeIdToHtmlElementsMap: Map<string, Array<HTMLElement>>;
blockIdToHtmlElementsMap: Map<string, Array<HTMLElement>>;
blockIdtoNodeIds: Map<string, Array<string>>;
nodeIdToBlockId: Array<string>;
patterns: any;
sourceResolver: SourceResolver;
broker: SelectionBroker;
constructor(id, broker) {
super(id);
const view = this;
view.textListNode = view.divNode.getElementsByTagName('ul')[0];
view.patterns = null;
view.nodeIdToHtmlElementsMap = new Map();
view.blockIdToHtmlElementsMap = new Map();
view.blockIdtoNodeIds = new Map();
view.nodeIdToBlockId = [];
view.selection = new MySelection(anyToString);
view.blockSelection = new MySelection(anyToString);
view.broker = broker;
view.sourceResolver = broker.sourceResolver;
const selectionHandler = {
clear: function () {
view.selection.clear();
view.updateSelection();
broker.broadcastClear(selectionHandler);
},
select: function (nodeIds, selected) {
view.selection.select(nodeIds, selected);
view.updateSelection();
broker.broadcastNodeSelect(selectionHandler, view.selection.selectedKeys(), selected);
},
brokeredNodeSelect: function (nodeIds, selected) {
const firstSelect = view.blockSelection.isEmpty();
view.selection.select(nodeIds, selected);
view.updateSelection(firstSelect);
},
brokeredClear: function () {
view.selection.clear();
view.updateSelection();
}
};
this.selectionHandler = selectionHandler;
broker.addNodeHandler(selectionHandler);
view.divNode.addEventListener('click', e => {
if (!e.shiftKey) {
view.selectionHandler.clear();
}
e.stopPropagation();
});
const blockSelectionHandler = {
clear: function () {
view.blockSelection.clear();
view.updateSelection();
broker.broadcastClear(blockSelectionHandler);
},
select: function (blockIds, selected) {
view.blockSelection.select(blockIds, selected);
view.updateSelection();
broker.broadcastBlockSelect(blockSelectionHandler, blockIds, selected);
},
brokeredBlockSelect: function (blockIds, selected) {
const firstSelect = view.blockSelection.isEmpty();
view.blockSelection.select(blockIds, selected);
view.updateSelection(firstSelect);
},
brokeredClear: function () {
view.blockSelection.clear();
view.updateSelection();
}
};
this.blockSelectionHandler = blockSelectionHandler;
broker.addBlockHandler(blockSelectionHandler);
}
addHtmlElementForNodeId(anyNodeId: any, htmlElement: HTMLElement) {
const nodeId = anyToString(anyNodeId);
if (!this.nodeIdToHtmlElementsMap.has(nodeId)) {
this.nodeIdToHtmlElementsMap.set(nodeId, []);
}
this.nodeIdToHtmlElementsMap.get(nodeId).push(htmlElement);
}
addHtmlElementForBlockId(anyBlockId, htmlElement) {
const blockId = anyToString(anyBlockId);
if (!this.blockIdToHtmlElementsMap.has(blockId)) {
this.blockIdToHtmlElementsMap.set(blockId, []);
}
this.blockIdToHtmlElementsMap.get(blockId).push(htmlElement);
}
addNodeIdToBlockId(anyNodeId, anyBlockId) {
const blockId = anyToString(anyBlockId);
if (!this.blockIdtoNodeIds.has(blockId)) {
this.blockIdtoNodeIds.set(blockId, []);
}
this.blockIdtoNodeIds.get(blockId).push(anyToString(anyNodeId));
this.nodeIdToBlockId[anyNodeId] = blockId;
}
blockIdsForNodeIds(nodeIds) {
const blockIds = [];
for (const nodeId of nodeIds) {
const blockId = this.nodeIdToBlockId[nodeId];
if (blockId == undefined) continue;
blockIds.push(blockId);
}
return blockIds;
}
updateSelection(scrollIntoView: boolean = false) {
if (this.divNode.parentNode == null) return;
const mkVisible = new ViewElements(this.divNode.parentNode as HTMLElement);
const view = this;
const elementsToSelect = view.divNode.querySelectorAll(`[data-pc-offset]`);
for (const el of elementsToSelect) {
el.classList.toggle("selected", false);
}
for (const [blockId, elements] of this.blockIdToHtmlElementsMap.entries()) {
const isSelected = view.blockSelection.isSelected(blockId);
for (const element of elements) {
mkVisible.consider(element, isSelected);
element.classList.toggle("selected", isSelected);
}
}
for (const key of this.nodeIdToHtmlElementsMap.keys()) {
for (const element of this.nodeIdToHtmlElementsMap.get(key)) {
element.classList.toggle("selected", false);
}
}
for (const nodeId of view.selection.selectedKeys()) {
const elements = this.nodeIdToHtmlElementsMap.get(nodeId);
if (!elements) continue;
for (const element of elements) {
mkVisible.consider(element, true);
element.classList.toggle("selected", true);
}
}
mkVisible.apply(scrollIntoView);
}
setPatterns(patterns) {
this.patterns = patterns;
}
clearText() {
while (this.textListNode.firstChild) {
this.textListNode.removeChild(this.textListNode.firstChild);
}
}
createFragment(text, style) {
const fragment = document.createElement("SPAN");
if (typeof style.associateData == 'function') {
if (style.associateData(text, fragment) === false) {
return null;
}
} else {
if (style.css != undefined) {
const css = isIterable(style.css) ? style.css : [style.css];
for (const cls of css) {
fragment.classList.add(cls);
}
}
fragment.innerText = text;
}
return fragment;
}
processLine(line) {
const view = this;
const result = [];
let patternSet = 0;
while (true) {
const beforeLine = line;
for (const pattern of view.patterns[patternSet]) {
const matches = line.match(pattern[0]);
if (matches != null) {
if (matches[0] != '') {
const style = pattern[1] != null ? pattern[1] : {};
const text = matches[0];
if (text != '') {
const fragment = view.createFragment(matches[0], style);
if (fragment !== null) result.push(fragment);
}
line = line.substr(matches[0].length);
}
let nextPatternSet = patternSet;
if (pattern.length > 2) {
nextPatternSet = pattern[2];
}
if (line == "") {
if (nextPatternSet != -1) {
throw ("illegal parsing state in text-view in patternSet" + patternSet);
}
return result;
}
patternSet = nextPatternSet;
break;
}
}
if (beforeLine == line) {
throw ("input not consumed in text-view in patternSet" + patternSet);
}
}
}
processText(text) {
const view = this;
const textLines = text.split(/[\n]/);
let lineNo = 0;
for (const line of textLines) {
const li = document.createElement("LI");
li.className = "nolinenums";
li.dataset.lineNo = "" + lineNo++;
const fragments = view.processLine(line);
for (const fragment of fragments) {
li.appendChild(fragment);
}
view.textListNode.appendChild(li);
}
}
initializeContent(data, rememberedSelection) {
this.clearText();
this.processText(data);
this.show();
}
public onresize(): void {}
isScrollable() {
return true;
}
}
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