150 lines
3.8 KiB
JavaScript
150 lines
3.8 KiB
JavaScript
/**
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* @licstart The following is the entire license notice for the
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* JavaScript code in this page
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*
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* Copyright 2022 Mozilla Foundation
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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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* @licend The above is the entire license notice for the
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* JavaScript code in this page
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*/
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.BaseTreeViewer = void 0;
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var _ui_utils = require("./ui_utils.js");
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const TREEITEM_OFFSET_TOP = -100;
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const TREEITEM_SELECTED_CLASS = "selected";
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class BaseTreeViewer {
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constructor(options) {
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if (this.constructor === BaseTreeViewer) {
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throw new Error("Cannot initialize BaseTreeViewer.");
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}
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this.container = options.container;
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this.eventBus = options.eventBus;
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this.reset();
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}
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reset() {
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this._pdfDocument = null;
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this._lastToggleIsShow = true;
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this._currentTreeItem = null;
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this.container.textContent = "";
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this.container.classList.remove("treeWithDeepNesting");
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}
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_dispatchEvent(count) {
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throw new Error("Not implemented: _dispatchEvent");
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}
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_bindLink(element, params) {
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throw new Error("Not implemented: _bindLink");
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}
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_normalizeTextContent(str) {
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return (0, _ui_utils.removeNullCharacters)(str, true) || "\u2013";
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}
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_addToggleButton(div, hidden = false) {
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const toggler = document.createElement("div");
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toggler.className = "treeItemToggler";
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if (hidden) {
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toggler.classList.add("treeItemsHidden");
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}
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toggler.onclick = evt => {
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evt.stopPropagation();
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toggler.classList.toggle("treeItemsHidden");
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if (evt.shiftKey) {
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const shouldShowAll = !toggler.classList.contains("treeItemsHidden");
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this._toggleTreeItem(div, shouldShowAll);
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}
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};
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div.prepend(toggler);
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}
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_toggleTreeItem(root, show = false) {
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this._lastToggleIsShow = show;
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for (const toggler of root.querySelectorAll(".treeItemToggler")) {
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toggler.classList.toggle("treeItemsHidden", !show);
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}
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}
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_toggleAllTreeItems() {
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this._toggleTreeItem(this.container, !this._lastToggleIsShow);
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}
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_finishRendering(fragment, count, hasAnyNesting = false) {
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if (hasAnyNesting) {
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this.container.classList.add("treeWithDeepNesting");
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this._lastToggleIsShow = !fragment.querySelector(".treeItemsHidden");
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}
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this.container.append(fragment);
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this._dispatchEvent(count);
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}
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render(params) {
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throw new Error("Not implemented: render");
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}
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_updateCurrentTreeItem(treeItem = null) {
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if (this._currentTreeItem) {
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this._currentTreeItem.classList.remove(TREEITEM_SELECTED_CLASS);
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this._currentTreeItem = null;
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}
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if (treeItem) {
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treeItem.classList.add(TREEITEM_SELECTED_CLASS);
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this._currentTreeItem = treeItem;
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}
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}
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_scrollToCurrentTreeItem(treeItem) {
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if (!treeItem) {
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return;
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}
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let currentNode = treeItem.parentNode;
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while (currentNode && currentNode !== this.container) {
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if (currentNode.classList.contains("treeItem")) {
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const toggler = currentNode.firstElementChild;
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toggler?.classList.remove("treeItemsHidden");
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}
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currentNode = currentNode.parentNode;
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}
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this._updateCurrentTreeItem(treeItem);
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this.container.scrollTo(treeItem.offsetLeft, treeItem.offsetTop + TREEITEM_OFFSET_TOP);
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}
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}
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exports.BaseTreeViewer = BaseTreeViewer; |