1 files changed, 111 insertions, 105 deletions

diff --git a/ext/bg/js/settings/anki-templates.js b/ext/bg/js/settings/anki-templates.js
index 0dadb433..dd128ab8 100644
--- a/ext/bg/js/settings/anki-templates.js
+++ b/ext/bg/js/settings/anki-templates.js
@@ -17,141 +17,147 @@
 
 /* global
  * AnkiNoteBuilder
- * ankiGetFieldMarkers
- * ankiGetFieldMarkersHtml
  * api
  * getOptionsContext
  * getOptionsMutable
  * settingsSaveOptions
  */
 
-function onAnkiFieldTemplatesReset(e) {
-    e.preventDefault();
-    $('#field-template-reset-modal').modal('show');
-}
-
-async function onAnkiFieldTemplatesResetConfirm(e) {
-    e.preventDefault();
+class AnkiTemplatesController {
+    constructor(ankiController) {
+        this._ankiController = ankiController;
+        this._cachedDefinitionValue = null;
+        this._cachedDefinitionText = null;
+    }
 
-    $('#field-template-reset-modal').modal('hide');
+    prepare() {
+        const markers = new Set([
+            ...this._ankiController.getFieldMarkers('terms'),
+            ...this._ankiController.getFieldMarkers('kanji')
+        ]);
+        const fragment = this._ankiController.getFieldMarkersHtml(markers);
+
+        const list = document.querySelector('#field-templates-list');
+        list.appendChild(fragment);
+        for (const node of list.querySelectorAll('.marker-link')) {
+            node.addEventListener('click', this._onMarkerClicked.bind(this), false);
+        }
 
-    const value = await api.getDefaultAnkiFieldTemplates();
+        $('#field-templates').on('change', this._onChanged.bind(this));
+        $('#field-template-render').on('click', this._onRender.bind(this));
+        $('#field-templates-reset').on('click', this._onReset.bind(this));
+        $('#field-templates-reset-confirm').on('click', this._onResetConfirm.bind(this));
 
-    const element = document.querySelector('#field-templates');
-    element.value = value;
-    element.dispatchEvent(new Event('change'));
-}
+        this.updateValue();
+    }
 
-function ankiTemplatesInitialize() {
-    const markers = new Set(ankiGetFieldMarkers('terms').concat(ankiGetFieldMarkers('kanji')));
-    const fragment = ankiGetFieldMarkersHtml(markers);
+    async updateValue() {
+        const optionsContext = getOptionsContext();
+        const options = await api.optionsGet(optionsContext);
+        let templates = options.anki.fieldTemplates;
+        if (typeof templates !== 'string') { templates = await api.getDefaultAnkiFieldTemplates(); }
+        $('#field-templates').val(templates);
 
-    const list = document.querySelector('#field-templates-list');
-    list.appendChild(fragment);
-    for (const node of list.querySelectorAll('.marker-link')) {
-        node.addEventListener('click', onAnkiTemplateMarkerClicked, false);
+        this._onValidateCompile();
     }
 
-    $('#field-templates').on('change', onAnkiFieldTemplatesChanged);
-    $('#field-template-render').on('click', onAnkiTemplateRender);
-    $('#field-templates-reset').on('click', onAnkiFieldTemplatesReset);
-    $('#field-templates-reset-confirm').on('click', onAnkiFieldTemplatesResetConfirm);
+    // Private
 
-    ankiTemplatesUpdateValue();
-}
+    _onReset(e) {
+        e.preventDefault();
+        $('#field-template-reset-modal').modal('show');
+    }
 
-async function ankiTemplatesUpdateValue() {
-    const optionsContext = getOptionsContext();
-    const options = await api.optionsGet(optionsContext);
-    let templates = options.anki.fieldTemplates;
-    if (typeof templates !== 'string') { templates = await api.getDefaultAnkiFieldTemplates(); }
-    $('#field-templates').val(templates);
+    async _onResetConfirm(e) {
+        e.preventDefault();
 
-    onAnkiTemplatesValidateCompile();
-}
+        $('#field-template-reset-modal').modal('hide');
 
-const ankiTemplatesValidateGetDefinition = (() => {
-    let cachedValue = null;
-    let cachedText = null;
+        const value = await api.getDefaultAnkiFieldTemplates();
 
-    return async (text, optionsContext) => {
-        if (cachedText !== text) {
-            const {definitions} = await api.termsFind(text, {}, optionsContext);
-            if (definitions.length === 0) { return null; }
+        const element = document.querySelector('#field-templates');
+        element.value = value;
+        element.dispatchEvent(new Event('change'));
+    }
 
-            cachedValue = definitions[0];
-            cachedText = text;
+    async _onChanged(e) {
+        // Get value
+        let templates = e.currentTarget.value;
+        if (templates === await api.getDefaultAnkiFieldTemplates()) {
+            // Default
+            templates = null;
         }
-        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 {
+
+        // Overwrite
         const optionsContext = getOptionsContext();
-        const definition = await ankiTemplatesValidateGetDefinition(text, optionsContext);
-        if (definition !== null) {
-            const options = await api.optionsGet(optionsContext);
-            const context = {
-                document: {
-                    title: document.title
-                }
-            };
-            let templates = options.anki.fieldTemplates;
-            if (typeof templates !== 'string') { templates = await api.getDefaultAnkiFieldTemplates(); }
-            const ankiNoteBuilder = new AnkiNoteBuilder({renderTemplate: api.templateRender.bind(api)});
-            result = await ankiNoteBuilder.formatField(field, definition, mode, context, options, templates, exceptions);
-        }
-    } catch (e) {
-        exceptions.push(e);
+        const options = await getOptionsMutable(optionsContext);
+        options.anki.fieldTemplates = templates;
+        await settingsSaveOptions();
+
+        // Compile
+        this._onValidateCompile();
     }
 
-    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);
+    _onValidateCompile() {
+        const infoNode = document.querySelector('#field-template-compile-result');
+        this._validate(infoNode, '{expression}', 'term-kanji', false, true);
     }
-}
 
-async function onAnkiFieldTemplatesChanged(e) {
-    // Get value
-    let templates = e.currentTarget.value;
-    if (templates === await api.getDefaultAnkiFieldTemplates()) {
-        // Default
-        templates = null;
+    _onMarkerClicked(e) {
+        e.preventDefault();
+        document.querySelector('#field-template-render-text').value = `{${e.target.textContent}}`;
     }
 
-    // Overwrite
-    const optionsContext = getOptionsContext();
-    const options = await getOptionsMutable(optionsContext);
-    options.anki.fieldTemplates = templates;
-    await settingsSaveOptions();
+    _onRender(e) {
+        e.preventDefault();
 
-    // Compile
-    onAnkiTemplatesValidateCompile();
-}
+        const field = document.querySelector('#field-template-render-text').value;
+        const infoNode = document.querySelector('#field-template-render-result');
+        infoNode.hidden = true;
+        this._validate(infoNode, field, 'term-kanji', true, false);
+    }
 
-function onAnkiTemplatesValidateCompile() {
-    const infoNode = document.querySelector('#field-template-compile-result');
-    ankiTemplatesValidate(infoNode, '{expression}', 'term-kanji', false, true);
-}
+    async _getDefinition(text, optionsContext) {
+        if (this._cachedDefinitionText !== text) {
+            const {definitions} = await api.termsFind(text, {}, optionsContext);
+            if (definitions.length === 0) { return null; }
 
-function onAnkiTemplateMarkerClicked(e) {
-    e.preventDefault();
-    document.querySelector('#field-template-render-text').value = `{${e.target.textContent}}`;
-}
+            this._cachedDefinitionValue = definitions[0];
+            this._cachedDefinitionText = text;
+        }
+        return this._cachedDefinitionValue;
+    }
 
-function onAnkiTemplateRender(e) {
-    e.preventDefault();
+    async _validate(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 this._getDefinition(text, optionsContext);
+            if (definition !== null) {
+                const options = await api.optionsGet(optionsContext);
+                const context = {
+                    document: {
+                        title: document.title
+                    }
+                };
+                let templates = options.anki.fieldTemplates;
+                if (typeof templates !== 'string') { templates = await api.getDefaultAnkiFieldTemplates(); }
+                const ankiNoteBuilder = new AnkiNoteBuilder({renderTemplate: api.templateRender.bind(api)});
+                result = await ankiNoteBuilder.formatField(field, definition, mode, context, options, templates, exceptions);
+            }
+        } catch (e) {
+            exceptions.push(e);
+        }
 
-    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);
+        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);
+        }
+    }
 }