Mercurial > addons > firefox-addons > feed-preview

annotate options/options.js @ 54:ede87e1004f9

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Fix issues with feed detection Query the feed probe content script for available feeds from the background script instead of making the content script message the background script. This solves a race condition between the message from the content script sending any feeds associated with the current document and the tab's status "complete" event signaling that a new document has been loaded and hiding the page action. Sometimes that event would be triggered after the message from the content script and thus hide the page action again. In addition, navigating back to a previously visited page might not cause a reload which means that the content script would not send a message if there were feeds associated with the current document.
author Guido Berhoerster <guido+feed-preview@berhoerster.name>
date Thu, 26 Sep 2019 23:11:18 +0200
parents 688d75e554e0
children 3c97046c2348
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1 /*
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2 * Copyright (C) 2018 Guido Berhoerster <guido+feed-preview@berhoerster.name>
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3 *
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4 * This Source Code Form is subject to the terms of the Mozilla Public
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5 * License, v. 2.0. If a copy of the MPL was not distributed with this
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6 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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7 */
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8
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9 'use strict';
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11 function normalizeURL(text) {
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12 return new URL(text).toString();
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13 }
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15 class OptionsPage {
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16 constructor() {
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17 this.selectedFeedReader = -1;
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19 document.querySelector('#feed-readers-title').textContent =
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20 browser.i18n.getMessage('feedReadersTitle');
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21 document.querySelector('#feed-preview-title').textContent =
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22 browser.i18n.getMessage('feedPreviewTitle');
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24 let feedReadersForm = document.forms['feed-readers'];
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25 feedReadersForm.elements['move-up'].textContent =
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26 browser.i18n.getMessage('feedReaderMoveUpButton');
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27 feedReadersForm.elements['move-down'].textContent =
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28 browser.i18n.getMessage('feedReaderMoveDownButton');
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29 feedReadersForm.elements['remove'].textContent =
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30 browser.i18n.getMessage('feedReaderRemoveButton');
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31 feedReadersForm.addEventListener('change', this);
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32
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33 let addFeedReaderForm = document.forms['add-feed-reader'];
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34 addFeedReaderForm.elements['add'].textContent =
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35 browser.i18n.getMessage('feedReaderAddButton');
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36 let titleElement = addFeedReaderForm.elements['title'];
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37 titleElement.labels[0].textContent =
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38 browser.i18n.getMessage('feedReaderTitleLabel');
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39 titleElement.placeholder =
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40 browser.i18n.getMessage('feedReaderTitlePlaceholder');
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41 let urlTemplateElement =
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42 addFeedReaderForm.elements['url-template'];
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43 urlTemplateElement.labels[0].textContent =
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44 browser.i18n.getMessage('feedReaderUrlTemplateLabel');
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45 urlTemplateElement.placeholder =
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46 browser.i18n.getMessage('feedReaderUrlTemplatePlaceholder');
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47 document.querySelector('#feed-reader-url-caption').textContent =
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48 browser.i18n.getMessage('feedReaderUrlTemplateCaption');
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49 addFeedReaderForm.addEventListener('focusout', this);
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50
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51 let feedPreviewForm = document.forms['feed-preview'];
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52 feedPreviewForm.elements['expand-entries'].labels[0].textContent =
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53 browser.i18n.getMessage('feedPreviewExpandItemLabel');
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54 feedPreviewForm.addEventListener('change', this);
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55
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56 document.addEventListener('submit', this);
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57
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58 this.initOptions();
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59 }
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60
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61 async initOptions() {
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62 let {feedReaders} = await browser.storage.sync.get('feedReaders');
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63 if (Array.isArray(feedReaders)) {
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64 console.log('initialized feedReaders from storage', feedReaders);
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65 this.updateFeedReaders(feedReaders);
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66 }
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67
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68 let {feedPreview: feedPreviewOptions} =
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69 await browser.storage.sync.get('feedPreview');
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70 if (typeof feedPreviewOptions !== 'undefined' &&
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71 feedPreviewOptions === Object(feedPreviewOptions)) {
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72 console.log('initialized feedPreviewOptions from storage',
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73 feedPreviewOptions);
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74 this.updateFeedPreviewOptions({
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75 expandEntries: !!feedPreviewOptions.expandEntries
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76 });
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77 }
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78
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79 browser.storage.onChanged.addListener(this.onStorageChanged.bind(this));
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80 }
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81
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82 validateURLTemplate(text) {
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83 let url;
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84 try {
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85 url = new URL(text);
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86 } catch(e) {
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87 if (e instanceof TypeError) {
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88 return browser.i18n.getMessage('invalidURLError');
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89 }
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90 throw e;
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91 }
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92
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93 if (url.protocol !== 'http:' && url.protocol !== 'https:') {
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94 return browser.i18n.getMessage('invalidProtocolError');
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95 }
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96
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97 if (!(url.pathname.includes('%s') || url.search.includes('%s'))) {
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98 return browser.i18n.getMessage('missingPlaceholderError');
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99 }
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100
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101 return '';
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102 }
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103
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104 updateFeedReaders(feedReaders) {
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105 let feedReadersForm = document.forms['feed-readers'];
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106 let feedReaderItemElements =
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107 feedReadersForm.querySelectorAll('.feed-reader-item');
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108 for (let feedReaderItemElement of feedReaderItemElements) {
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109 feedReaderItemElement.remove();
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110 }
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111
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112 let feedReaderItemTemplateElement =
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113 document.querySelector('#feed-reader-item-template');
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114 let feedReaderSelectionElement =
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115 feedReadersForm.querySelector('#feed-reader-selection')
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116 for (let feedReader of feedReaders) {
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117 let feedReaderItemNode =
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118 document.importNode(feedReaderItemTemplateElement.content,
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119 true);
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120 let feedReaderInputElement =
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121 feedReaderItemNode.querySelector('input[name=feed-reader]');
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122 feedReaderInputElement.dataset.title = feedReader.title;
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123 feedReaderInputElement.value = feedReader.urlTemplate;
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124 feedReaderItemNode.querySelector('.feed-reader-title')
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125 .textContent = feedReader.title;
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126 feedReaderItemNode.querySelector('.feed-reader-url-template')
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127 .textContent = feedReader.urlTemplate;
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128 feedReaderSelectionElement.append(feedReaderItemNode);
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129 }
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130
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131 feedReadersForm.elements['buttons'].disabled = true;
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132 }
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133
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134 updateFeedPreviewOptions(feedPreviewOptions) {
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135 document.forms['feed-preview'].elements['expand-entries'].checked =
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136 feedPreviewOptions.expandEntries;
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137 }
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138
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139 getFeedReaders() {
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140 let feedReaderInput =
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141 document.forms['feed-readers'].elements['feed-reader'];
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142 if (feedReaderInput instanceof RadioNodeList) {
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143 return Array.from(feedReaderInput);
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144 } else if (typeof feedReaderInput === 'undefined') {
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145 return [];
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146 }
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147 return Array.from([feedReaderInput]);
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148 }
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149
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150 selectFeedReader() {
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151 console.debug('selected:', this.selectedFeedReader);
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152 if (this.selectedFeedReader < 0) {
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153 return;
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154 }
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155
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156 let feedReadersForm = document.forms['feed-readers'];
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157 let feedReaderElements = this.getFeedReaders();
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158 feedReaderElements[this.selectedFeedReader].checked = true;
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159 // ensure that the checked element will also be the focused one the
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160 // next time the radio input group receives focus
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161 let activeElement = document.activeElement;
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162 feedReaderElements[this.selectedFeedReader].focus();
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163 activeElement.focus();
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164
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165 feedReadersForm.elements['buttons'].disabled = false;
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166 }
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167
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168 serializeFeedReaders() {
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169 return this.getFeedReaders().map(element => ({
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170 title: element.dataset.title,
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171 urlTemplate: element.value
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172 }));
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173 }
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174
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175 onStorageChanged(changes, areaName) {
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176 if (areaName !== 'sync') {
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177 return;
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178 }
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179
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180 if (typeof changes.feedReaders !== 'undefined') {
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181 let feedReaders;
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182 if (typeof changes.feedReaders.newValue !== 'undefined' &&
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183 Array.isArray(changes.feedReaders.newValue)) {
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184 feedReaders = changes.feedReaders.newValue;
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185 console.log('feedReaders changed to', feedReaders);
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186 } else {
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187 // list of feed readers was removed or set to nonsensical value
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188 feedReaders = [];
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189 console.log('feedReaders was removed');
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190 }
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191 if (this.selectedFeedReader >= feedReaders.length) {
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192 // save selected feed reader is no longer valid
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193 this.selectedFeedReader = -1;
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194 }
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195 this.updateFeedReaders(feedReaders);
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196 this.selectFeedReader();
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197 }
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198 if (typeof changes.feedPreview !== 'undefined') {
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199 let feedPreviewOptions;
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200 let newValue = changes.feedPreview.newValue;
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201 if (typeof newValue !== 'undefined' &&
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202 newValue === Object(newValue)) {
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203 feedPreviewOptions = {expandEntries: !!newValue.expandEntries};
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204 } else {
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205 // feed preview preferences were removed or set to nonsensical
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206 // value
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207 feedPreviewOptions = {expandEntries: false};
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208 console.log('feedPreview was removed');
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209 }
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210 this.updateFeedPreviewOptions(feedPreviewOptions);
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211 }
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212 }
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213
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214 handleEvent(ev) {
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215 console.log('previously selected:', this.selectedFeedReader);
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216 if (ev.type === 'change' && ev.target.name === 'feed-reader') {
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217 // feed reader was selected by user interaction
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218 console.debug(ev);
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219 this.selectedFeedReader = this.getFeedReaders().indexOf(ev.target);
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220 console.log('now selected:', this.selectedFeedReader);
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221
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222 document.forms['feed-readers'].elements['buttons'].disabled = false;
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223 } else if (ev.type === 'submit' && ev.target.id === 'feed-readers') {
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224 // remove feed reader or move feed reader up or down
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225 ev.preventDefault();
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226
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227 let feedReaders = this.serializeFeedReaders();
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228 if (ev.explicitOriginalTarget.name === 'move-up') {
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229 if (this.selectedFeedReader - 1 < 0) {
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230 // the first feed reader is selected
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231 return;
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232 }
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233 [feedReaders[this.selectedFeedReader - 1],
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234 feedReaders[this.selectedFeedReader]] =
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235 [feedReaders[this.selectedFeedReader],
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236 feedReaders[this.selectedFeedReader - 1]];
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237 this.selectedFeedReader--;
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238 } else if (ev.explicitOriginalTarget.name === 'move-down') {
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239 if (this.selectedFeedReader + 1 === feedReaders.length) {
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240 // the last feed reader is selected
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241 return;
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242 }
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243 [feedReaders[this.selectedFeedReader + 1],
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244 feedReaders[this.selectedFeedReader]] =
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245 [feedReaders[this.selectedFeedReader],
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246 feedReaders[this.selectedFeedReader + 1]];
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247 this.selectedFeedReader++;
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248 } else if (ev.explicitOriginalTarget.name === 'remove') {
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249 feedReaders.splice(this.selectedFeedReader, 1);
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250 this.selectedFeedReader--;
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251 }
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252 browser.storage.sync.set({feedReaders});
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253 console.log('set feedReaders to ', feedReaders);
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254 } else if (ev.type === 'focusout' &&
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255 ev.target.name === 'url-template') {
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256 // url template was changed
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257 let validity = this.validateURLTemplate(ev.target.value);
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258 ev.target.setCustomValidity(validity);
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259 } else if (ev.type === 'submit' &&
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260 ev.target.id === 'add-feed-reader') {
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261 // feed reader added
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262 ev.preventDefault();
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263
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264 let urlTemplate = ev.target.elements['url-template'].value;
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265 let isValid = this.validateURLTemplate(urlTemplate);
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266 ev.target.elements['url-template'].setCustomValidity(isValid);
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267 if (!ev.target.reportValidity()) {
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268 return;
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269 }
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270
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271 let feedReaders = this.serializeFeedReaders();
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272 feedReaders.push({
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273 title: ev.target.elements['title'].value,
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274 urlTemplate: normalizeURL(urlTemplate)
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275 });
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276 browser.storage.sync.set({feedReaders});
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277 console.log('set feedReaders to', feedReaders);
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278
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279 document.forms['add-feed-reader'].reset();
29
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280 } else if (ev.type === 'change' && ev.target.id === 'expand-entries') {
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281 console.log('expand entries by default:', ev.target.checked);
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282 browser.storage.sync.set({
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283 feedPreview: {expandEntries: ev.target.checked}
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284 });
10
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285 }
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286 }
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287 }
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288
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289 var page = new OptionsPage();