Reworked Admin JS with ES6

themes/grav/app/forms/fields/array.js

@@ -0,0 +1,146 @@
+import $ from 'jquery';
+
+let body = $('body');
+
+class Template {
+    constructor(container) {
+        this.container = $(container);
+
+        if (this.getName() === undefined) {
+            this.container = this.container.closest('[data-grav-array-name]');
+        }
+    }
+
+    getName() {
+        return this.container.data('grav-array-name') || '';
+    }
+
+    getKeyPlaceholder() {
+        return this.container.data('grav-array-keyname') || 'Key';
+    }
+
+    getValuePlaceholder() {
+        return this.container.data('grav-array-valuename') || 'Value';
+    }
+
+    isValueOnly() {
+        return this.container.find('[data-grav-array-mode="value_only"]:first').length || false;
+    }
+
+    shouldBeDisabled() {
+        // check for toggleables, if field is toggleable and it's not enabled, render disabled
+        let toggle = this.container.closest('.form-field').find('[data-grav-field="toggleable"] input[type="checkbox"]');
+        return toggle.length && toggle.is(':not(:checked)');
+    }
+
+    getNewRow() {
+        let tpl = '';
+
+        if (this.isValueOnly()) {
+            tpl += `
+            <div class="form-row array-field-value_only" data-grav-array-type="row">
+                <input ${this.shouldBeDisabled() ? 'disabled="disabled"' : ''} data-grav-array-type="value" type="text" value="" placeholder="${this.getValuePlaceholder()}" />
+            `;
+        } else {
+            tpl += `
+            <div class="form-row" data-grav-array-type="row">
+                <input ${this.shouldBeDisabled() ? 'disabled="disabled"' : ''} data-grav-array-type="key" type="text" value="" placeholder="${this.getKeyPlaceholder()}" />
+                <input ${this.shouldBeDisabled() ? 'disabled="disabled"' : ''} data-grav-array-type="value" type="text" name="" value=""  placeholder="${this.getValuePlaceholder()}" />
+            `;
+        }
+
+        tpl += `
+            <span data-grav-array-action="rem" class="fa fa-minus"></span>
+            <span data-grav-array-action="add" class="fa fa-plus"></span>
+        </div>`;
+
+        return tpl;
+    }
+}
+
+export default class ArrayField {
+    constructor() {
+        body.on('input', '[data-grav-array-type="key"], [data-grav-array-type="value"]', (event) => this.actionInput(event));
+        body.on('click touch', '[data-grav-array-action]', (event) => this.actionEvent(event));
+    }
+
+    actionInput(event) {
+        let element = $(event.target);
+        let type = element.data('grav-array-type');
+
+        this._setTemplate(element);
+
+        let template = element.data('array-template');
+        let keyElement = type === 'key' ? element : element.siblings('[data-grav-array-type="key"]:first');
+        let valueElement = type === 'value' ? element : element.siblings('[data-grav-array-type="value"]:first');
+
+        let name = `${template.getName()}[${!template.isValueOnly() ? keyElement.val() : this.getIndexFor(element)}]`;
+        valueElement.attr('name', !valueElement.val() ? template.getName() : name);
+
+        this.refreshNames(template);
+    }
+
+    actionEvent(event) {
+        let element = $(event.target);
+        let action = element.data('grav-array-action');
+
+        this._setTemplate(element);
+
+        this[`${action}Action`](element);
+    }
+
+    addAction(element) {
+        let template = element.data('array-template');
+        let row = element.closest('[data-grav-array-type="row"]');
+
+        row.after(template.getNewRow());
+    }
+
+    remAction(element) {
+        let template = element.data('array-template');
+        let row = element.closest('[data-grav-array-type="row"]');
+        let isLast = !row.siblings().length;
+
+        if (isLast) {
+            let newRow = $(template.getNewRow());
+            row.after(newRow);
+            newRow.find('[data-grav-array-type="value"]:last').attr('name', template.getName());
+        }
+
+        row.remove();
+        this.refreshNames(template);
+    }
+
+    refreshNames(template) {
+        if (!template.isValueOnly()) { return; }
+
+        let row = template.container.find('> div > [data-grav-array-type="row"]');
+        let inputs = row.find('[name]:not([name=""])');
+
+        inputs.each((index, input) => {
+            input = $(input);
+            let name = input.attr('name');
+            name = name.replace(/\[\d+\]$/, `[${index}]`);
+            input.attr('name', name);
+        });
+
+        if (!inputs.length) {
+            row.find('[data-grav-array-type="value"]').attr('name', template.getName());
+        }
+    }
+
+    getIndexFor(element) {
+        let template = element.data('array-template');
+        let row = element.closest('[data-grav-array-type="row"]');
+
+        return template.container.find(`${template.isValueOnly() ? '> div ' : ''} > [data-grav-array-type="row"]`).index(row);
+    }
+
+    _setTemplate(element) {
+        if (!element.data('array-template')) {
+            element.data('array-template', new Template(element.closest('[data-grav-array-name]')));
+        }
+    }
+}
+
+export let Instance = new ArrayField();