class AjaxFormsTestCommandsForm

class AjaxFormsTestCommandsForm extends FormBase {
    
    /**
     * {@inheritdoc}.
     */
    public function getFormId() {
        return 'ajax_forms_test_ajax_commands_form';
    }
    
    /**
     * {@inheritdoc}.
     */
    public function buildForm(array $form, FormStateInterface $form_state) {
        $form = [];
        // Shows the 'after' command with a callback generating commands.
        $form['after_command_example'] = [
            '#value' => $this->t("AJAX 'After': Click to put something after the div"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_after_callback',
            ],
            '#suffix' => '<div id="after_div">Something can be inserted after this</div>',
        ];
        // Shows the 'alert' command.
        $form['alert_command_example'] = [
            '#value' => $this->t("AJAX 'Alert': Click to alert"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_alert_callback',
            ],
        ];
        // Shows the 'announce' command with default priority.
        $form['announce_command_example'] = [
            '#value' => $this->t("AJAX 'Announce': Click to announce"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_announce_callback',
            ],
        ];
        // Shows the 'announce' command with 'polite' priority.
        $form['announce_command_polite_example'] = [
            '#value' => $this->t("AJAX 'Announce': Click to announce with 'polite' priority"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_announce_polite_callback',
            ],
        ];
        // Shows the 'announce' command with 'assertive' priority.
        $form['announce_command_assertive_example'] = [
            '#value' => $this->t("AJAX 'Announce': Click to announce with 'assertive' priority"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_announce_assertive_callback',
            ],
        ];
        // Shows the 'announce' command used twice in one AjaxResponse.
        $form['announce_command_double_example'] = [
            '#value' => $this->t("AJAX 'Announce': Click to announce twice"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_double_announce_callback',
            ],
        ];
        // Shows the 'append' command.
        $form['append_command_example'] = [
            '#value' => $this->t("AJAX 'Append': Click to append something"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_append_callback',
            ],
            '#suffix' => '<div id="append_div">Append inside this div</div>',
        ];
        // Shows the 'before' command.
        $form['before_command_example'] = [
            '#value' => $this->t("AJAX 'before': Click to put something before the div"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_before_callback',
            ],
            '#suffix' => '<div id="before_div">Insert something before this.</div>',
        ];
        // Shows the 'changed' command without asterisk.
        $form['changed_command_example'] = [
            '#value' => $this->t("AJAX changed: Click to mark div changed."),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_changed_callback',
            ],
            '#suffix' => '<div id="changed_div"> <div id="changed_div_mark_this">This div can be marked as changed or not.</div></div>',
        ];
        // Shows the 'changed' command adding the asterisk.
        $form['changed_command_asterisk_example'] = [
            '#value' => $this->t("AJAX changed: Click to mark div changed with asterisk."),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_changed_asterisk_callback',
            ],
        ];
        // Shows the Ajax 'css' command.
        $form['css_command_example'] = [
            '#value' => $this->t("Set the '#box' div to be blue."),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_css_callback',
            ],
            '#suffix' => '<div id="css_div" style="height: 50px; width: 50px; border: 1px solid black"> box</div>',
        ];
        // Shows the Ajax 'data' command. But there is no use of this information,
        // as this would require a javascript client to use the data.
        $form['data_command_example'] = [
            '#value' => $this->t("AJAX data command: Issue command."),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_data_callback',
            ],
            '#suffix' => '<div id="data_div">Data attached to this div.</div>',
        ];
        // Shows the Ajax 'invoke' command.
        $form['invoke_command_example'] = [
            '#value' => $this->t("AJAX invoke command: Invoke addClass() method."),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_invoke_callback',
            ],
            '#suffix' => '<div id="invoke_div">Original contents</div>',
        ];
        // Shows the Ajax 'html' command.
        $form['html_command_example'] = [
            '#value' => $this->t("AJAX html: Replace the HTML in a selector."),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_html_callback',
            ],
            '#suffix' => '<div id="html_div">Original contents</div>',
        ];
        // Shows the Ajax 'insert' command.
        $form['insert_command_example'] = [
            '#value' => $this->t("AJAX insert: Let client insert based on #ajax['method']."),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_insert_callback',
                'method' => 'prepend',
            ],
            '#suffix' => '<div id="insert_div">Original contents</div>',
        ];
        // Shows the Ajax 'prepend' command.
        $form['prepend_command_example'] = [
            '#value' => $this->t("AJAX 'prepend': Click to prepend something"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_prepend_callback',
            ],
            '#suffix' => '<div id="prepend_div">Something will be prepended to this div. </div>',
        ];
        // Shows the Ajax 'remove' command.
        $form['remove_command_example'] = [
            '#value' => $this->t("AJAX 'remove': Click to remove text"),
            '#type' => 'submit',
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_remove_callback',
            ],
            '#suffix' => '<div id="remove_div"><div id="remove_text">text to be removed</div></div>',
        ];
        // Shows the Ajax 'restripe' command.
        $form['restripe_command_example'] = [
            '#type' => 'submit',
            '#value' => $this->t("AJAX 'restripe' command"),
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_restripe_callback',
            ],
            '#suffix' => '<div id="restripe_div">
                    <table id="restripe_table" style="border: 1px solid black" >
                    <tr id="table-first"><td>first row</td></tr>
                    <tr ><td>second row</td></tr>
                    </table>
                    </div>',
        ];
        // Demonstrates the Ajax 'settings' command. The 'settings' command has
        // nothing visual to "show", but it can be tested via SimpleTest and via
        // Firebug.
        $form['settings_command_example'] = [
            '#type' => 'submit',
            '#value' => $this->t("AJAX 'settings' command"),
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_settings_callback',
            ],
        ];
        // Shows the Ajax 'add_css' command.
        $form['add_css_command_example'] = [
            '#type' => 'submit',
            '#value' => $this->t("AJAX 'add_css' command"),
            '#ajax' => [
                'callback' => 'ajax_forms_test_advanced_commands_add_css_callback',
            ],
        ];
        $form['submit'] = [
            '#type' => 'submit',
            '#value' => $this->t('Submit'),
        ];
        return $form;
    }
    
    /**
     * {@inheritdoc}.
     */
    public function submitForm(array &$form, FormStateInterface $form_state) {
    }

}