21f048234d
Changes `PDFOutlineView`/`PDFAttachmentView` to be initialized once, since we're always creating them, and refactor their `render` methods to instead pass in the `outline`/`attachments`. For consistency with other "classes", the `PDFOutlineView`/`PDFAttachmentView` are renamed to `PDFOutlineViewer`/`PDFAttachmentViewer`. Also, make sure that the outline/attachments are reset when the document is closed. Currently we keep the old ones around until the `getOutline`/`getAttachments` API calls are resolved for a new document.
117 lines
3.3 KiB
JavaScript
117 lines
3.3 KiB
JavaScript
/* Copyright 2012 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 */
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'use strict';
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/**
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* @typedef {Object} PDFAttachmentViewerOptions
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* @property {HTMLDivElement} container - The viewer element.
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* @property {DownloadManager} downloadManager - The download manager.
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*/
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/**
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* @typedef {Object} PDFAttachmentViewerRenderParameters
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* @property {Array|null} attachments - An array of attachment objects.
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*/
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/**
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* @class
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*/
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var PDFAttachmentViewer = (function PDFAttachmentViewerClosure() {
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/**
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* @constructs PDFAttachmentViewer
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* @param {PDFAttachmentViewerOptions} options
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*/
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function PDFAttachmentViewer(options) {
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this.attachments = null;
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this.container = options.container;
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this.downloadManager = options.downloadManager;
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}
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PDFAttachmentViewer.prototype = {
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reset: function PDFAttachmentViewer_reset() {
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this.attachments = null;
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var container = this.container;
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while (container.firstChild) {
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container.removeChild(container.firstChild);
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}
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},
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/**
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* @private
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*/
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_dispatchEvent:
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function PDFAttachmentViewer_dispatchEvent(attachmentsCount) {
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var event = document.createEvent('CustomEvent');
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event.initCustomEvent('attachmentsloaded', true, true, {
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attachmentsCount: attachmentsCount
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});
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this.container.dispatchEvent(event);
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},
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/**
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* @private
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*/
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_bindLink:
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function PDFAttachmentViewer_bindLink(button, content, filename) {
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button.onclick = function downloadFile(e) {
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this.downloadManager.downloadData(content, filename, '');
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return false;
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}.bind(this);
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},
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/**
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* @param {PDFAttachmentViewerRenderParameters} params
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*/
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render: function PDFAttachmentViewer_render(params) {
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var attachments = (params && params.attachments) || null;
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var attachmentsCount = 0;
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if (this.attachments) {
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this.reset();
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}
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this.attachments = attachments;
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if (!attachments) {
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this._dispatchEvent(attachmentsCount);
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return;
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}
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var names = Object.keys(attachments).sort(function(a, b) {
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return a.toLowerCase().localeCompare(b.toLowerCase());
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});
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attachmentsCount = names.length;
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for (var i = 0; i < attachmentsCount; i++) {
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var item = attachments[names[i]];
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var filename = PDFJS.getFilenameFromUrl(item.filename);
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var div = document.createElement('div');
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div.className = 'attachmentsItem';
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var button = document.createElement('button');
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this._bindLink(button, item.content, filename);
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button.textContent = PDFJS.removeNullCharacters(filename);
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div.appendChild(button);
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this.container.appendChild(div);
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}
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this._dispatchEvent(attachmentsCount);
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}
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};
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return PDFAttachmentViewer;
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})();
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