bce3214105
Additionally simplify the div creation logic (it needs to happen only once, so it should not be in the for-loop) and remove/rename variables for shorter code.
131 lines
3.8 KiB
JavaScript
131 lines
3.8 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 PDFJS, mozL10n, SimpleLinkService */
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'use strict';
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/**
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* @typedef {Object} AnnotationsLayerBuilderOptions
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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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*/
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/**
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* @class
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*/
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var AnnotationsLayerBuilder = (function AnnotationsLayerBuilderClosure() {
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var CustomStyle = PDFJS.CustomStyle;
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/**
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* @param {AnnotationsLayerBuilderOptions} options
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* @constructs AnnotationsLayerBuilder
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*/
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function AnnotationsLayerBuilder(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.div = null;
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}
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AnnotationsLayerBuilder.prototype =
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/** @lends AnnotationsLayerBuilder.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 AnnotationsLayerBuilder_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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var data, element, i, ii;
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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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for (i = 0, ii = annotations.length; i < ii; i++) {
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data = annotations[i];
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element = self.div.querySelector(
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'[data-annotation-id="' + data.id + '"]');
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if (element) {
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CustomStyle.setProp('transform', element,
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'matrix(' + viewport.transform.join(',') + ')');
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}
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}
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self.div.removeAttribute('hidden');
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} else {
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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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for (i = 0, ii = annotations.length; i < ii; i++) {
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data = annotations[i];
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if (!data || !data.hasHtml) {
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continue;
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}
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element = PDFJS.AnnotationLayer.getHtmlElement(data, self.pdfPage,
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viewport,
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self.linkService);
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if (typeof mozL10n !== 'undefined') {
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mozL10n.translate(element);
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}
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self.div.appendChild(element);
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}
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}
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});
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},
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hide: function AnnotationsLayerBuilder_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 AnnotationsLayerBuilder;
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})();
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/**
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* @constructor
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* @implements IPDFAnnotationsLayerFactory
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*/
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function DefaultAnnotationsLayerFactory() {}
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DefaultAnnotationsLayerFactory.prototype = {
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/**
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* @param {HTMLDivElement} pageDiv
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* @param {PDFPage} pdfPage
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* @returns {AnnotationsLayerBuilder}
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*/
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createAnnotationsLayerBuilder: function (pageDiv, pdfPage) {
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return new AnnotationsLayerBuilder({
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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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