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21 |
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22 | "use strict";
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23 |
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24 | Object.defineProperty(exports, "__esModule", {
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25 | value: true
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26 | });
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27 | exports.PDFLayerViewer = void 0;
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28 |
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29 | var _base_tree_viewer = require("./base_tree_viewer.js");
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30 |
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31 | class PDFLayerViewer extends _base_tree_viewer.BaseTreeViewer {
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32 | constructor(options) {
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33 | super(options);
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34 | this.l10n = options.l10n;
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35 |
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36 | this.eventBus._on("resetlayers", this._resetLayers.bind(this));
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37 |
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38 | this.eventBus._on("togglelayerstree", this._toggleAllTreeItems.bind(this));
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39 | }
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40 |
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41 | reset() {
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42 | super.reset();
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43 | this._optionalContentConfig = null;
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44 | }
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45 |
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46 | _dispatchEvent(layersCount) {
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47 | this.eventBus.dispatch("layersloaded", {
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48 | source: this,
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49 | layersCount
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50 | });
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51 | }
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52 |
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53 | _bindLink(element, {
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54 | groupId,
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55 | input
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56 | }) {
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57 | const setVisibility = () => {
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58 | this._optionalContentConfig.setVisibility(groupId, input.checked);
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59 |
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60 | this.eventBus.dispatch("optionalcontentconfig", {
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61 | source: this,
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62 | promise: Promise.resolve(this._optionalContentConfig)
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63 | });
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64 | };
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65 |
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66 | element.onclick = evt => {
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67 | if (evt.target === input) {
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68 | setVisibility();
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69 | return true;
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70 | } else if (evt.target !== element) {
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71 | return true;
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72 | }
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73 |
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74 | input.checked = !input.checked;
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75 | setVisibility();
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76 | return false;
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77 | };
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78 | }
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79 |
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80 | async _setNestedName(element, {
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81 | name = null
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82 | }) {
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83 | if (typeof name === "string") {
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84 | element.textContent = this._normalizeTextContent(name);
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85 | return;
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86 | }
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87 |
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88 | element.textContent = await this.l10n.get("additional_layers");
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89 | element.style.fontStyle = "italic";
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90 | }
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91 |
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92 | _addToggleButton(div, {
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93 | name = null
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94 | }) {
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95 | super._addToggleButton(div, name === null);
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96 | }
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97 |
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98 | _toggleAllTreeItems() {
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99 | if (!this._optionalContentConfig) {
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100 | return;
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101 | }
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102 |
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103 | super._toggleAllTreeItems();
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104 | }
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105 |
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106 | render({
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107 | optionalContentConfig,
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108 | pdfDocument
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109 | }) {
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110 | if (this._optionalContentConfig) {
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111 | this.reset();
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112 | }
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113 |
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114 | this._optionalContentConfig = optionalContentConfig || null;
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115 | this._pdfDocument = pdfDocument || null;
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116 | const groups = optionalContentConfig?.getOrder();
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117 |
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118 | if (!groups) {
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119 | this._dispatchEvent(0);
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120 |
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121 | return;
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122 | }
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123 |
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124 | const fragment = document.createDocumentFragment(),
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125 | queue = [{
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126 | parent: fragment,
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127 | groups
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128 | }];
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129 | let layersCount = 0,
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130 | hasAnyNesting = false;
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131 |
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132 | while (queue.length > 0) {
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133 | const levelData = queue.shift();
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134 |
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135 | for (const groupId of levelData.groups) {
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136 | const div = document.createElement("div");
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137 | div.className = "treeItem";
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138 | const element = document.createElement("a");
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139 | div.append(element);
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140 |
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141 | if (typeof groupId === "object") {
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142 | hasAnyNesting = true;
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143 |
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144 | this._addToggleButton(div, groupId);
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145 |
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146 | this._setNestedName(element, groupId);
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147 |
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148 | const itemsDiv = document.createElement("div");
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149 | itemsDiv.className = "treeItems";
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150 | div.append(itemsDiv);
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151 | queue.push({
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152 | parent: itemsDiv,
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153 | groups: groupId.order
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154 | });
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155 | } else {
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156 | const group = optionalContentConfig.getGroup(groupId);
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157 | const input = document.createElement("input");
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158 |
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159 | this._bindLink(element, {
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160 | groupId,
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161 | input
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162 | });
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163 |
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164 | input.type = "checkbox";
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165 | input.checked = group.visible;
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166 | const label = document.createElement("label");
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167 | label.textContent = this._normalizeTextContent(group.name);
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168 | label.append(input);
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169 | element.append(label);
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170 | layersCount++;
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171 | }
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172 |
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173 | levelData.parent.append(div);
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174 | }
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175 | }
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176 |
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177 | this._finishRendering(fragment, layersCount, hasAnyNesting);
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178 | }
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179 |
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180 | async _resetLayers() {
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181 | if (!this._optionalContentConfig) {
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182 | return;
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183 | }
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184 |
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185 | const optionalContentConfig = await this._pdfDocument.getOptionalContentConfig();
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186 | this.eventBus.dispatch("optionalcontentconfig", {
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187 | source: this,
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188 | promise: Promise.resolve(optionalContentConfig)
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189 | });
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190 | this.render({
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191 | optionalContentConfig,
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192 | pdfDocument: this._pdfDocument
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193 | });
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194 | }
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195 |
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196 | }
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197 |
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198 | exports.PDFLayerViewer = PDFLayerViewer; |
\ | No newline at end of file |