141 lines
4.1 KiB
JavaScript
141 lines
4.1 KiB
JavaScript
/* Copyright 2014 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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/*globals pdfjsLib */
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'use strict';
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(function (root, factory) {
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if (typeof define === 'function' && define.amd) {
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define('pdfjs-web/annotation_layer_builder', ['exports',
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'pdfjs-web/ui_utils', 'pdfjs-web/pdf_link_service'], factory);
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} else if (typeof exports !== 'undefined') {
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factory(exports, require('./ui_utils.js'),
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require('./pdf_link_service.js'));
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} else {
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factory((root.pdfjsWebAnnotationLayerBuilder = {}), root.pdfjsWebUIUtils,
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root.pdfjsWebPDFLinkService);
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}
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}(this, function (exports, uiUtils, pdfLinkService) {
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var mozL10n = uiUtils.mozL10n;
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var SimpleLinkService = pdfLinkService.SimpleLinkService;
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/**
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* @typedef {Object} AnnotationLayerBuilderOptions
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* @property {HTMLDivElement} pageDiv
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* @property {PDFPage} pdfPage
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* @property {IPDFLinkService} linkService
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* @property {DownloadManager} downloadManager
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*/
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/**
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* @class
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*/
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var AnnotationLayerBuilder = (function AnnotationLayerBuilderClosure() {
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/**
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* @param {AnnotationLayerBuilderOptions} options
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* @constructs AnnotationLayerBuilder
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*/
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function AnnotationLayerBuilder(options) {
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this.pageDiv = options.pageDiv;
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this.pdfPage = options.pdfPage;
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this.linkService = options.linkService;
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this.downloadManager = options.downloadManager;
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this.div = null;
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}
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AnnotationLayerBuilder.prototype =
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/** @lends AnnotationLayerBuilder.prototype */ {
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/**
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* @param {PageViewport} viewport
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* @param {string} intent (default value is 'display')
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*/
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render: function AnnotationLayerBuilder_render(viewport, intent) {
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var self = this;
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var parameters = {
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intent: (intent === undefined ? 'display' : intent),
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};
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this.pdfPage.getAnnotations(parameters).then(function (annotations) {
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viewport = viewport.clone({ dontFlip: true });
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parameters = {
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viewport: viewport,
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div: self.div,
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annotations: annotations,
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page: self.pdfPage,
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linkService: self.linkService,
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downloadManager: self.downloadManager
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};
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if (self.div) {
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// If an annotationLayer already exists, refresh its children's
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// transformation matrices.
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pdfjsLib.AnnotationLayer.update(parameters);
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} else {
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// Create an annotation layer div and render the annotations
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// if there is at least one annotation.
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if (annotations.length === 0) {
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return;
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}
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self.div = document.createElement('div');
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self.div.className = 'annotationLayer';
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self.pageDiv.appendChild(self.div);
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parameters.div = self.div;
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pdfjsLib.AnnotationLayer.render(parameters);
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if (typeof mozL10n !== 'undefined') {
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mozL10n.translate(self.div);
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}
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}
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});
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},
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hide: function AnnotationLayerBuilder_hide() {
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if (!this.div) {
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return;
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}
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this.div.setAttribute('hidden', 'true');
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}
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};
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return AnnotationLayerBuilder;
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})();
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/**
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* @constructor
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* @implements IPDFAnnotationLayerFactory
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*/
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function DefaultAnnotationLayerFactory() {}
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DefaultAnnotationLayerFactory.prototype = {
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/**
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* @param {HTMLDivElement} pageDiv
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* @param {PDFPage} pdfPage
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* @returns {AnnotationLayerBuilder}
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*/
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createAnnotationLayerBuilder: function (pageDiv, pdfPage) {
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return new AnnotationLayerBuilder({
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pageDiv: pageDiv,
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pdfPage: pdfPage,
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linkService: new SimpleLinkService(),
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});
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}
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};
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exports.AnnotationLayerBuilder = AnnotationLayerBuilder;
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}));
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