From ae94f84ffd576a338e6baabd3330c45df1a2c59d Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Sun, 1 Dec 2019 15:22:37 -0500
Subject: Move settings scripts

---
 ext/bg/js/settings/main.js | 810 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 810 insertions(+)
 create mode 100644 ext/bg/js/settings/main.js

(limited to 'ext/bg/js/settings/main.js')

diff --git a/ext/bg/js/settings/main.js b/ext/bg/js/settings/main.js
new file mode 100644
index 00000000..9e9604e2
--- /dev/null
+++ b/ext/bg/js/settings/main.js
@@ -0,0 +1,810 @@
+/*
+ * Copyright (C) 2016-2017  Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+async function getOptionsArray() {
+    const optionsFull = await apiOptionsGetFull();
+    return optionsFull.profiles.map((profile) => profile.options);
+}
+
+async function formRead(options) {
+    options.general.enable = $('#enable').prop('checked');
+    options.general.showGuide = $('#show-usage-guide').prop('checked');
+    options.general.compactTags = $('#compact-tags').prop('checked');
+    options.general.compactGlossaries = $('#compact-glossaries').prop('checked');
+    options.general.resultOutputMode = $('#result-output-mode').val();
+    options.general.debugInfo = $('#show-debug-info').prop('checked');
+    options.general.showAdvanced = $('#show-advanced-options').prop('checked');
+    options.general.maxResults = parseInt($('#max-displayed-results').val(), 10);
+    options.general.popupDisplayMode = $('#popup-display-mode').val();
+    options.general.popupHorizontalTextPosition = $('#popup-horizontal-text-position').val();
+    options.general.popupVerticalTextPosition = $('#popup-vertical-text-position').val();
+    options.general.popupWidth = parseInt($('#popup-width').val(), 10);
+    options.general.popupHeight = parseInt($('#popup-height').val(), 10);
+    options.general.popupHorizontalOffset = parseInt($('#popup-horizontal-offset').val(), 0);
+    options.general.popupVerticalOffset = parseInt($('#popup-vertical-offset').val(), 10);
+    options.general.popupHorizontalOffset2 = parseInt($('#popup-horizontal-offset2').val(), 0);
+    options.general.popupVerticalOffset2 = parseInt($('#popup-vertical-offset2').val(), 10);
+    options.general.popupTheme = $('#popup-theme').val();
+    options.general.popupOuterTheme = $('#popup-outer-theme').val();
+    options.general.customPopupCss = $('#custom-popup-css').val();
+    options.general.customPopupOuterCss = $('#custom-popup-outer-css').val();
+
+    options.audio.enabled = $('#audio-playback-enabled').prop('checked');
+    options.audio.autoPlay = $('#auto-play-audio').prop('checked');
+    options.audio.volume = parseFloat($('#audio-playback-volume').val());
+    options.audio.customSourceUrl = $('#audio-custom-source').val();
+    options.audio.textToSpeechVoice = $('#text-to-speech-voice').val();
+
+    options.scanning.middleMouse = $('#middle-mouse-button-scan').prop('checked');
+    options.scanning.touchInputEnabled = $('#touch-input-enabled').prop('checked');
+    options.scanning.selectText = $('#select-matched-text').prop('checked');
+    options.scanning.alphanumeric = $('#search-alphanumeric').prop('checked');
+    options.scanning.autoHideResults = $('#auto-hide-results').prop('checked');
+    options.scanning.deepDomScan = $('#deep-dom-scan').prop('checked');
+    options.scanning.enablePopupSearch = $('#enable-search-within-first-popup').prop('checked');
+    options.scanning.enableOnPopupExpressions = $('#enable-scanning-of-popup-expressions').prop('checked');
+    options.scanning.enableOnSearchPage = $('#enable-scanning-on-search-page').prop('checked');
+    options.scanning.delay = parseInt($('#scan-delay').val(), 10);
+    options.scanning.length = parseInt($('#scan-length').val(), 10);
+    options.scanning.modifier = $('#scan-modifier-key').val();
+    options.scanning.popupNestingMaxDepth = parseInt($('#popup-nesting-max-depth').val(), 10);
+
+    options.parsing.enableScanningParser = $('#parsing-scan-enable').prop('checked');
+    options.parsing.enableMecabParser = $('#parsing-mecab-enable').prop('checked');
+    options.parsing.readingMode = $('#parsing-reading-mode').val();
+
+    const optionsAnkiEnableOld = options.anki.enable;
+    options.anki.enable = $('#anki-enable').prop('checked');
+    options.anki.tags = utilBackgroundIsolate($('#card-tags').val().split(/[,; ]+/));
+    options.anki.sentenceExt = parseInt($('#sentence-detection-extent').val(), 10);
+    options.anki.server = $('#interface-server').val();
+    options.anki.screenshot.format = $('#screenshot-format').val();
+    options.anki.screenshot.quality = parseInt($('#screenshot-quality').val(), 10);
+    options.anki.fieldTemplates = $('#field-templates').val();
+
+    if (optionsAnkiEnableOld && !ankiErrorShown()) {
+        options.anki.terms.deck = $('#anki-terms-deck').val();
+        options.anki.terms.model = $('#anki-terms-model').val();
+        options.anki.terms.fields = utilBackgroundIsolate(ankiFieldsToDict($('#terms .anki-field-value')));
+        options.anki.kanji.deck = $('#anki-kanji-deck').val();
+        options.anki.kanji.model = $('#anki-kanji-model').val();
+        options.anki.kanji.fields = utilBackgroundIsolate(ankiFieldsToDict($('#kanji .anki-field-value')));
+    }
+}
+
+async function formWrite(options) {
+    $('#enable').prop('checked', options.general.enable);
+    $('#show-usage-guide').prop('checked', options.general.showGuide);
+    $('#compact-tags').prop('checked', options.general.compactTags);
+    $('#compact-glossaries').prop('checked', options.general.compactGlossaries);
+    $('#result-output-mode').val(options.general.resultOutputMode);
+    $('#show-debug-info').prop('checked', options.general.debugInfo);
+    $('#show-advanced-options').prop('checked', options.general.showAdvanced);
+    $('#max-displayed-results').val(options.general.maxResults);
+    $('#popup-display-mode').val(options.general.popupDisplayMode);
+    $('#popup-horizontal-text-position').val(options.general.popupHorizontalTextPosition);
+    $('#popup-vertical-text-position').val(options.general.popupVerticalTextPosition);
+    $('#popup-width').val(options.general.popupWidth);
+    $('#popup-height').val(options.general.popupHeight);
+    $('#popup-horizontal-offset').val(options.general.popupHorizontalOffset);
+    $('#popup-vertical-offset').val(options.general.popupVerticalOffset);
+    $('#popup-horizontal-offset2').val(options.general.popupHorizontalOffset2);
+    $('#popup-vertical-offset2').val(options.general.popupVerticalOffset2);
+    $('#popup-theme').val(options.general.popupTheme);
+    $('#popup-outer-theme').val(options.general.popupOuterTheme);
+    $('#custom-popup-css').val(options.general.customPopupCss);
+    $('#custom-popup-outer-css').val(options.general.customPopupOuterCss);
+
+    $('#audio-playback-enabled').prop('checked', options.audio.enabled);
+    $('#auto-play-audio').prop('checked', options.audio.autoPlay);
+    $('#audio-playback-volume').val(options.audio.volume);
+    $('#audio-custom-source').val(options.audio.customSourceUrl);
+    $('#text-to-speech-voice').val(options.audio.textToSpeechVoice).attr('data-value', options.audio.textToSpeechVoice);
+
+    $('#middle-mouse-button-scan').prop('checked', options.scanning.middleMouse);
+    $('#touch-input-enabled').prop('checked', options.scanning.touchInputEnabled);
+    $('#select-matched-text').prop('checked', options.scanning.selectText);
+    $('#search-alphanumeric').prop('checked', options.scanning.alphanumeric);
+    $('#auto-hide-results').prop('checked', options.scanning.autoHideResults);
+    $('#deep-dom-scan').prop('checked', options.scanning.deepDomScan);
+    $('#enable-search-within-first-popup').prop('checked', options.scanning.enablePopupSearch);
+    $('#enable-scanning-of-popup-expressions').prop('checked', options.scanning.enableOnPopupExpressions);
+    $('#enable-scanning-on-search-page').prop('checked', options.scanning.enableOnSearchPage);
+    $('#scan-delay').val(options.scanning.delay);
+    $('#scan-length').val(options.scanning.length);
+    $('#scan-modifier-key').val(options.scanning.modifier);
+    $('#popup-nesting-max-depth').val(options.scanning.popupNestingMaxDepth);
+
+    $('#parsing-scan-enable').prop('checked', options.parsing.enableScanningParser);
+    $('#parsing-mecab-enable').prop('checked', options.parsing.enableMecabParser);
+    $('#parsing-reading-mode').val(options.parsing.readingMode);
+
+    $('#anki-enable').prop('checked', options.anki.enable);
+    $('#card-tags').val(options.anki.tags.join(' '));
+    $('#sentence-detection-extent').val(options.anki.sentenceExt);
+    $('#interface-server').val(options.anki.server);
+    $('#screenshot-format').val(options.anki.screenshot.format);
+    $('#screenshot-quality').val(options.anki.screenshot.quality);
+    $('#field-templates').val(options.anki.fieldTemplates);
+
+    onAnkiTemplatesValidateCompile();
+    await onDictionaryOptionsChanged(options);
+
+    try {
+        await ankiDeckAndModelPopulate(options);
+    } catch (e) {
+        ankiErrorShow(e);
+    }
+
+    formUpdateVisibility(options);
+}
+
+function formSetupEventListeners() {
+    $('input, select, textarea').not('.anki-model').not('.ignore-form-changes *').change((e) => onFormOptionsChanged(e));
+    $('.anki-model').change((e) => onAnkiModelChanged(e));
+}
+
+function formUpdateVisibility(options) {
+    document.documentElement.dataset.optionsAnkiEnable = `${!!options.anki.enable}`;
+    document.documentElement.dataset.optionsGeneralDebugInfo = `${!!options.general.debugInfo}`;
+    document.documentElement.dataset.optionsGeneralShowAdvanced = `${!!options.general.showAdvanced}`;
+    document.documentElement.dataset.optionsGeneralResultOutputMode = `${options.general.resultOutputMode}`;
+
+    if (options.general.debugInfo) {
+        const temp = utilIsolate(options);
+        temp.anki.fieldTemplates = '...';
+        const text = JSON.stringify(temp, null, 4);
+        $('#debug').text(text);
+    }
+}
+
+async function onFormOptionsChanged(e) {
+    if (!e.originalEvent && !e.isTrigger) {
+        return;
+    }
+
+    const optionsContext = getOptionsContext();
+    const options = await apiOptionsGet(optionsContext);
+    const optionsAnkiEnableOld = options.anki.enable;
+    const optionsAnkiServerOld = options.anki.server;
+
+    await formRead(options);
+    await settingsSaveOptions();
+    formUpdateVisibility(options);
+
+    try {
+        const ankiUpdated =
+            options.anki.enable !== optionsAnkiEnableOld ||
+            options.anki.server !== optionsAnkiServerOld;
+
+        if (ankiUpdated) {
+            ankiSpinnerShow(true);
+            await ankiDeckAndModelPopulate(options);
+            ankiErrorShow();
+        }
+    } catch (error) {
+        ankiErrorShow(error);
+    } finally {
+        ankiSpinnerShow(false);
+    }
+}
+
+async function onReady() {
+    showExtensionInformation();
+
+    formSetupEventListeners();
+    appearanceInitialize();
+    await audioSettingsInitialize();
+    await profileOptionsSetup();
+    await dictSettingsInitialize();
+    ankiTemplatesInitialize();
+
+    storageInfoInitialize();
+
+    chrome.runtime.onMessage.addListener(onMessage);
+}
+
+$(document).ready(() => onReady());
+
+
+/*
+ * Appearance
+ */
+
+function appearanceInitialize() {
+    let previewVisible = false;
+    $('#settings-popup-preview-button').on('click', () => {
+        if (previewVisible) { return; }
+        showAppearancePreview();
+        previewVisible = true;
+    });
+}
+
+function showAppearancePreview() {
+    const container = $('#settings-popup-preview-container');
+    const buttonContainer = $('#settings-popup-preview-button-container');
+    const settings = $('#settings-popup-preview-settings');
+    const text = $('#settings-popup-preview-text');
+    const customCss = $('#custom-popup-css');
+    const customOuterCss = $('#custom-popup-outer-css');
+
+    const frame = document.createElement('iframe');
+    frame.src = '/bg/settings-popup-preview.html';
+    frame.id = 'settings-popup-preview-frame';
+
+    window.wanakana.bind(text[0]);
+
+    text.on('input', () => {
+        const action = 'setText';
+        const params = {text: text.val()};
+        frame.contentWindow.postMessage({action, params}, '*');
+    });
+    customCss.on('input', () => {
+        const action = 'setCustomCss';
+        const params = {css: customCss.val()};
+        frame.contentWindow.postMessage({action, params}, '*');
+    });
+    customOuterCss.on('input', () => {
+        const action = 'setCustomOuterCss';
+        const params = {css: customOuterCss.val()};
+        frame.contentWindow.postMessage({action, params}, '*');
+    });
+
+    container.append(frame);
+    buttonContainer.remove();
+    settings.css('display', '');
+}
+
+
+/*
+ * Audio
+ */
+
+let audioSourceUI = null;
+
+async function audioSettingsInitialize() {
+    const optionsContext = getOptionsContext();
+    const options = await apiOptionsGet(optionsContext);
+    audioSourceUI = new AudioSourceUI.Container(options.audio.sources, $('.audio-source-list'), $('.audio-source-add'));
+    audioSourceUI.save = () => settingsSaveOptions();
+
+    textToSpeechInitialize();
+}
+
+function textToSpeechInitialize() {
+    if (typeof speechSynthesis === 'undefined') { return; }
+
+    speechSynthesis.addEventListener('voiceschanged', () => updateTextToSpeechVoices(), false);
+    updateTextToSpeechVoices();
+
+    $('#text-to-speech-voice-test').on('click', () => textToSpeechTest());
+}
+
+function updateTextToSpeechVoices() {
+    const voices = Array.prototype.map.call(speechSynthesis.getVoices(), (voice, index) => ({voice, index}));
+    voices.sort(textToSpeechVoiceCompare);
+    if (voices.length > 0) {
+        $('#text-to-speech-voice-container').css('display', '');
+    }
+
+    const select = $('#text-to-speech-voice');
+    select.empty();
+    select.append($('<option>').val('').text('None'));
+    for (const {voice} of voices) {
+        select.append($('<option>').val(voice.voiceURI).text(`${voice.name} (${voice.lang})`));
+    }
+
+    select.val(select.attr('data-value'));
+}
+
+function languageTagIsJapanese(languageTag) {
+    return (
+        languageTag.startsWith('ja-') ||
+        languageTag.startsWith('jpn-')
+    );
+}
+
+function textToSpeechVoiceCompare(a, b) {
+    const aIsJapanese = languageTagIsJapanese(a.voice.lang);
+    const bIsJapanese = languageTagIsJapanese(b.voice.lang);
+    if (aIsJapanese) {
+        if (!bIsJapanese) { return -1; }
+    } else {
+        if (bIsJapanese) { return 1; }
+    }
+
+    const aIsDefault = a.voice.default;
+    const bIsDefault = b.voice.default;
+    if (aIsDefault) {
+        if (!bIsDefault) { return -1; }
+    } else {
+        if (bIsDefault) { return 1; }
+    }
+
+    if (a.index < b.index) { return -1; }
+    if (a.index > b.index) { return 1; }
+    return 0;
+}
+
+function textToSpeechTest() {
+    try {
+        const text = $('#text-to-speech-voice-test').attr('data-speech-text') || '';
+        const voiceURI = $('#text-to-speech-voice').val();
+        const voice = audioGetTextToSpeechVoice(voiceURI);
+        if (voice === null) { return; }
+
+        const utterance = new SpeechSynthesisUtterance(text);
+        utterance.lang = 'ja-JP';
+        utterance.voice = voice;
+        utterance.volume = 1.0;
+
+        speechSynthesis.speak(utterance);
+    } catch (e) {
+        // NOP
+    }
+}
+
+
+/*
+ * Remote options updates
+ */
+
+function settingsGetSource() {
+    return new Promise((resolve) => {
+        chrome.tabs.getCurrent((tab) => resolve(`settings${tab ? tab.id : ''}`));
+    });
+}
+
+async function settingsSaveOptions() {
+    const source = await settingsGetSource();
+    await apiOptionsSave(source);
+}
+
+async function onOptionsUpdate({source}) {
+    const thisSource = await settingsGetSource();
+    if (source === thisSource) { return; }
+
+    const optionsContext = getOptionsContext();
+    const options = await apiOptionsGet(optionsContext);
+    await formWrite(options);
+}
+
+function onMessage({action, params}, sender, callback) {
+    switch (action) {
+        case 'optionsUpdate':
+            onOptionsUpdate(params);
+            break;
+        case 'getUrl':
+            callback({url: window.location.href});
+            break;
+    }
+}
+
+
+/*
+ * Anki
+ */
+
+function ankiSpinnerShow(show) {
+    const spinner = $('#anki-spinner');
+    if (show) {
+        spinner.show();
+    } else {
+        spinner.hide();
+    }
+}
+
+function ankiErrorShow(error) {
+    const dialog = $('#anki-error');
+    if (error) {
+        dialog.show().text(error);
+    }
+    else {
+        dialog.hide();
+    }
+}
+
+function ankiErrorShown() {
+    return $('#anki-error').is(':visible');
+}
+
+function ankiFieldsToDict(selection) {
+    const result = {};
+    selection.each((index, element) => {
+        result[$(element).data('field')] = $(element).val();
+    });
+
+    return result;
+}
+
+async function ankiDeckAndModelPopulate(options) {
+    const ankiFormat = $('#anki-format').hide();
+
+    const deckNames = await utilAnkiGetDeckNames();
+    const ankiDeck = $('.anki-deck');
+    ankiDeck.find('option').remove();
+    deckNames.sort().forEach((name) => ankiDeck.append($('<option/>', {value: name, text: name})));
+
+    const modelNames = await utilAnkiGetModelNames();
+    const ankiModel = $('.anki-model');
+    ankiModel.find('option').remove();
+    modelNames.sort().forEach((name) => ankiModel.append($('<option/>', {value: name, text: name})));
+
+    $('#anki-terms-deck').val(options.anki.terms.deck);
+    await ankiFieldsPopulate($('#anki-terms-model').val(options.anki.terms.model), options);
+
+    $('#anki-kanji-deck').val(options.anki.kanji.deck);
+    await ankiFieldsPopulate($('#anki-kanji-model').val(options.anki.kanji.model), options);
+
+    ankiFormat.show();
+}
+
+function ankiCreateFieldTemplate(name, value, markers) {
+    const template = document.querySelector('#anki-field-template').content;
+    const content = document.importNode(template, true).firstChild;
+
+    content.querySelector('.anki-field-name').textContent = name;
+
+    const field = content.querySelector('.anki-field-value');
+    field.dataset.field = name;
+    field.value = value;
+
+    content.querySelector('.anki-field-marker-list').appendChild(ankiGetFieldMarkersHtml(markers));
+
+    return content;
+}
+
+function ankiGetFieldMarkersHtml(markers, fragment) {
+    const template = document.querySelector('#anki-field-marker-template').content;
+    if (!fragment) {
+        fragment = new DocumentFragment();
+    }
+    for (const marker of markers) {
+        const markerNode = document.importNode(template, true).firstChild;
+        markerNode.querySelector('.marker-link').textContent = marker;
+        fragment.appendChild(markerNode);
+    }
+    return fragment;
+}
+
+function ankiGetFieldMarkers(type) {
+    switch (type) {
+        case 'terms':
+            return [
+                'audio',
+                'cloze-body',
+                'cloze-prefix',
+                'cloze-suffix',
+                'dictionary',
+                'expression',
+                'furigana',
+                'furigana-plain',
+                'glossary',
+                'glossary-brief',
+                'reading',
+                'screenshot',
+                'sentence',
+                'tags',
+                'url'
+            ];
+        case 'kanji':
+            return [
+                'character',
+                'dictionary',
+                'glossary',
+                'kunyomi',
+                'onyomi',
+                'screenshot',
+                'sentence',
+                'tags',
+                'url'
+            ];
+        default:
+            return [];
+    }
+}
+
+async function ankiFieldsPopulate(element, options) {
+    const modelName = element.val();
+    if (!modelName) {
+        return;
+    }
+
+    const tab = element.closest('.tab-pane');
+    const tabId = tab.attr('id');
+    const container = tab.find('tbody').empty();
+    const markers = ankiGetFieldMarkers(tabId);
+
+    for (const name of await utilAnkiGetModelFieldNames(modelName)) {
+        const value = options.anki[tabId].fields[name] || '';
+        const html = ankiCreateFieldTemplate(name, value, markers);
+        container.append($(html));
+    }
+
+    tab.find('.anki-field-value').change((e) => onFormOptionsChanged(e));
+    tab.find('.marker-link').click((e) => onAnkiMarkerClicked(e));
+}
+
+function onAnkiMarkerClicked(e) {
+    e.preventDefault();
+    const link = e.target;
+    $(link).closest('.input-group').find('.anki-field-value').val(`{${link.text}}`).trigger('change');
+}
+
+async function onAnkiModelChanged(e) {
+    try {
+        if (!e.originalEvent) {
+            return;
+        }
+
+        const element = $(this);
+        const tab = element.closest('.tab-pane');
+        const tabId = tab.attr('id');
+
+        const optionsContext = getOptionsContext();
+        const options = await apiOptionsGet(optionsContext);
+        await formRead(options);
+        options.anki[tabId].fields = utilBackgroundIsolate({});
+        await settingsSaveOptions();
+
+        ankiSpinnerShow(true);
+        await ankiFieldsPopulate(element, options);
+        ankiErrorShow();
+    } catch (error) {
+        ankiErrorShow(error);
+    } finally {
+        ankiSpinnerShow(false);
+    }
+}
+
+function onAnkiFieldTemplatesReset(e) {
+    e.preventDefault();
+    $('#field-template-reset-modal').modal('show');
+}
+
+async function onAnkiFieldTemplatesResetConfirm(e) {
+    try {
+        e.preventDefault();
+
+        $('#field-template-reset-modal').modal('hide');
+
+        const optionsContext = getOptionsContext();
+        const options = await apiOptionsGet(optionsContext);
+        const fieldTemplates = profileOptionsGetDefaultFieldTemplates();
+        options.anki.fieldTemplates = fieldTemplates;
+        $('#field-templates').val(fieldTemplates);
+        onAnkiTemplatesValidateCompile();
+        await settingsSaveOptions();
+    } catch (error) {
+        ankiErrorShow(error);
+    }
+}
+
+function ankiTemplatesInitialize() {
+    const markers = new Set(ankiGetFieldMarkers('terms').concat(ankiGetFieldMarkers('kanji')));
+    const fragment = ankiGetFieldMarkersHtml(markers);
+
+    const list = document.querySelector('#field-templates-list');
+    list.appendChild(fragment);
+    for (const node of list.querySelectorAll('.marker-link')) {
+        node.addEventListener('click', onAnkiTemplateMarkerClicked, false);
+    }
+
+    $('#field-templates').on('change', (e) => onAnkiTemplatesValidateCompile(e));
+    $('#field-template-render').on('click', (e) => onAnkiTemplateRender(e));
+    $('#field-templates-reset').on('click', (e) => onAnkiFieldTemplatesReset(e));
+    $('#field-templates-reset-confirm').on('click', (e) => onAnkiFieldTemplatesResetConfirm(e));
+}
+
+const ankiTemplatesValidateGetDefinition = (() => {
+    let cachedValue = null;
+    let cachedText = null;
+
+    return async (text, optionsContext) => {
+        if (cachedText !== text) {
+            const {definitions} = await apiTermsFind(text, {}, optionsContext);
+            if (definitions.length === 0) { return null; }
+
+            cachedValue = definitions[0];
+            cachedText = text;
+        }
+        return cachedValue;
+    };
+})();
+
+async function ankiTemplatesValidate(infoNode, field, mode, showSuccessResult, invalidateInput) {
+    const text = document.querySelector('#field-templates-preview-text').value || '';
+    const exceptions = [];
+    let result = `No definition found for ${text}`;
+    try {
+        const optionsContext = getOptionsContext();
+        const definition = await ankiTemplatesValidateGetDefinition(text, optionsContext);
+        if (definition !== null) {
+            const options = await apiOptionsGet(optionsContext);
+            result = await dictFieldFormat(field, definition, mode, options, exceptions);
+        }
+    } catch (e) {
+        exceptions.push(e);
+    }
+
+    const hasException = exceptions.length > 0;
+    infoNode.hidden = !(showSuccessResult || hasException);
+    infoNode.textContent = hasException ? exceptions.map((e) => `${e}`).join('\n') : (showSuccessResult ? result : '');
+    infoNode.classList.toggle('text-danger', hasException);
+    if (invalidateInput) {
+        const input = document.querySelector('#field-templates');
+        input.classList.toggle('is-invalid', hasException);
+    }
+}
+
+function onAnkiTemplatesValidateCompile() {
+    const infoNode = document.querySelector('#field-template-compile-result');
+    ankiTemplatesValidate(infoNode, '{expression}', 'term-kanji', false, true);
+}
+
+function onAnkiTemplateMarkerClicked(e) {
+    e.preventDefault();
+    document.querySelector('#field-template-render-text').value = `{${e.target.textContent}}`;
+}
+
+function onAnkiTemplateRender(e) {
+    e.preventDefault();
+
+    const field = document.querySelector('#field-template-render-text').value;
+    const infoNode = document.querySelector('#field-template-render-result');
+    infoNode.hidden = true;
+    ankiTemplatesValidate(infoNode, field, 'term-kanji', true, false);
+}
+
+
+/*
+ * Storage
+ */
+
+function storageBytesToLabeledString(size) {
+    const base = 1000;
+    const labels = [' bytes', 'KB', 'MB', 'GB'];
+    let labelIndex = 0;
+    while (size >= base) {
+        size /= base;
+        ++labelIndex;
+    }
+    const label = labelIndex === 0 ? `${size}` : size.toFixed(1);
+    return `${label}${labels[labelIndex]}`;
+}
+
+async function storageEstimate() {
+    try {
+        return (storageEstimate.mostRecent = await navigator.storage.estimate());
+    } catch (e) {
+        // NOP
+    }
+    return null;
+}
+storageEstimate.mostRecent = null;
+
+async function isStoragePeristent() {
+    try {
+        return await navigator.storage.persisted();
+    } catch (e) {
+        // NOP
+    }
+    return false;
+}
+
+async function storageInfoInitialize() {
+    storagePersistInitialize();
+    const {browser, platform} = await apiGetEnvironmentInfo();
+    document.documentElement.dataset.browser = browser;
+    document.documentElement.dataset.operatingSystem = platform.os;
+
+    await storageShowInfo();
+
+    document.querySelector('#storage-refresh').addEventListener('click', () => storageShowInfo(), false);
+}
+
+async function storageUpdateStats() {
+    storageUpdateStats.isUpdating = true;
+
+    const estimate = await storageEstimate();
+    const valid = (estimate !== null);
+
+    if (valid) {
+        // Firefox reports usage as 0 when persistent storage is enabled.
+        const finite = (estimate.usage > 0 || !(await isStoragePeristent()));
+        if (finite) {
+            document.querySelector('#storage-usage').textContent = storageBytesToLabeledString(estimate.usage);
+            document.querySelector('#storage-quota').textContent = storageBytesToLabeledString(estimate.quota);
+        }
+        document.querySelector('#storage-use-finite').classList.toggle('storage-hidden', !finite);
+        document.querySelector('#storage-use-infinite').classList.toggle('storage-hidden', finite);
+    }
+
+    storageUpdateStats.isUpdating = false;
+    return valid;
+}
+storageUpdateStats.isUpdating = false;
+
+async function storageShowInfo() {
+    storageSpinnerShow(true);
+
+    const valid = await storageUpdateStats();
+    document.querySelector('#storage-use').classList.toggle('storage-hidden', !valid);
+    document.querySelector('#storage-error').classList.toggle('storage-hidden', valid);
+
+    storageSpinnerShow(false);
+}
+
+function storageSpinnerShow(show) {
+    const spinner = $('#storage-spinner');
+    if (show) {
+        spinner.show();
+    } else {
+        spinner.hide();
+    }
+}
+
+async function storagePersistInitialize() {
+    if (!(navigator.storage && navigator.storage.persist)) {
+        // Not supported
+        return;
+    }
+
+    const info = document.querySelector('#storage-persist-info');
+    const button = document.querySelector('#storage-persist-button');
+    const checkbox = document.querySelector('#storage-persist-button-checkbox');
+
+    info.classList.remove('storage-hidden');
+    button.classList.remove('storage-hidden');
+
+    let persisted = await isStoragePeristent();
+    checkbox.checked = persisted;
+
+    button.addEventListener('click', async () => {
+        if (persisted) {
+            return;
+        }
+        let result = false;
+        try {
+            result = await navigator.storage.persist();
+        } catch (e) {
+            // NOP
+        }
+
+        if (result) {
+            persisted = true;
+            checkbox.checked = true;
+            storageShowInfo();
+        } else {
+            $('.storage-persist-fail-warning').removeClass('storage-hidden');
+        }
+    }, false);
+}
+
+
+/*
+ * Information
+ */
+
+function showExtensionInformation() {
+    const node = document.getElementById('extension-info');
+    if (node === null) { return; }
+
+    const manifest = chrome.runtime.getManifest();
+    node.textContent = `${manifest.name} v${manifest.version}`;
+}
-- 
cgit v1.2.3