FORMS_AND_WIDGETS(3)            RSX Framework Manual            FORMS_AND_WIDGETS(3)

NAME
    Forms and Widgets - RSX form system with reusable widget components

SYNOPSIS
    // Blade form markup
    <Rsx_Form $data="{{ json_encode($form_data) }}"
              $action="{{ Rsx::Route('Controller', 'save') }}">

        <Form_Field $name="email" $label="Email Address" $required=true>
            <Text_Input $type="email" $placeholder="user@example.com" />
        </Form_Field>

        <Form_Field $name="bio" $label="Biography">
            <Text_Input $type="textarea" $rows=5 />
        </Form_Field>

        <button type="button" id="save-btn">Save</button>
    </Rsx_Form>

    // JavaScript - wire save button to form
    $('#save-btn').on('click', function() {
        const $form = $('.Rsx_Form').first();
        $form.component().submit();
    });

DESCRIPTION
    The RSX form system provides a clean separation between form structure
    (Rsx_Form), field layout (Form_Field), and input widgets (Text_Input,
    Select_Input, etc). This architecture enables:

    - Reusable widgets across all forms
    - Consistent validation error display
    - Automatic value collection and population
    - Test data generation via seeders
    - Read-only/disabled states
    - Custom field layouts without modifying widget code

    Key Components:
    - Rsx_Form: Container managing form submission and validation
    - Form_Field: Layout wrapper providing labels, help text, error display
    - Widgets: Reusable input components (Text_Input, Select_Input, etc)

RSX_FORM COMPONENT

    The Rsx_Form component manages form data flow, submission, and validation.

    Required Attributes:
        $action - Controller method reference for form submission
                  Example: Frontend_Clients_Controller.save

    Optional Attributes:
        $data - JSON-encoded object with initial form values
                Used for edit mode to populate fields
                Example: $data="{{ json_encode($client_data) }}"

    Methods:
        vals() - Get all form values as object
        vals(values) - Set all form values from object
        submit() - Submit form to $action endpoint
        seed() - Fill all fields with test data (debug mode only)

    Form Discovery:
        Rsx_Form automatically discovers all widgets using shallowFind('.Widget')
        and collects values based on their data-name attributes. No registration
        or manual wiring required.

    Example - Basic Form:

        <Rsx_Form $action="{{ Rsx::Route('Users_Controller', 'save') }}">
            <Form_Field $name="first_name" $label="First Name">
                <Text_Input />
            </Form_Field>

            <Form_Field $name="last_name" $label="Last Name">
                <Text_Input />
            </Form_Field>

            <button type="button" id="save-btn">Save</button>
        </Rsx_Form>

    Example - Edit Mode with Initial Data:

        @php
            $form_data = [
                'first_name' => $user->first_name,
                'last_name' => $user->last_name,
                'email' => $user->email,
            ];
        @endphp

        <Rsx_Form $data="{{ json_encode($form_data) }}"
                  $action="{{ Rsx::Route('Users_Controller', 'save') }}">
            <!-- Fields automatically populated from $data -->
        </Rsx_Form>

FORM_FIELD WRAPPER

    Form_Field provides consistent layout for labels, help text, and error
    display. It wraps a single widget and connects it to the form.

    Required Attributes:
        $name - Field name for form serialization and error display

    Optional Attributes:
        $label - Label text displayed above field
        $required - Boolean, adds red asterisk to label
        $help - Help text displayed below field

    Responsibilities:
        - Display label with optional required indicator
        - Set data-name attribute on child widget
        - Display validation errors returned from server
        - Provide consistent spacing and styling

    Example - Basic Field:

        <Form_Field $name="email" $label="Email Address">
            <Text_Input $type="email" />
        </Form_Field>

    Example - Required Field with Help Text:

        <Form_Field $name="password"
                    $label="Password"
                    $required=true
                    $help="Must be at least 8 characters">
            <Text_Input $type="password" />
        </Form_Field>

    Example - Field with HTML in Label:

        <Form_Field $name="twitter" $label="<i class='bi bi-twitter'></i> Twitter">
            <Text_Input $prefix="@" />
        </Form_Field>

    Custom Layout:
        Form_Field can be extended or replaced with custom jqhtml to change
        field layout. The only requirement is that the child widget must
        have the data-name attribute set to the field name.

        Example - Horizontal Layout:

            <Define:Form_Field_Horizontal extends="Form_Field">
                <div class="row mb-3">
                    <label class="col-md-3 col-form-label">
                        <%!= this.args.label %>
                    </label>
                    <div class="col-md-9">
                        <%= content() %>
                        <% if (this.has_error()) { %>
                            <div class="invalid-feedback d-block">
                                <%= this.get_error() %>
                            </div>
                        <% } %>
                    </div>
                </div>
            </Define:Form_Field_Horizontal>

WIDGET INTERFACE

    All form widgets must implement the standard widget interface:

    Required:
        - CSS class "Widget" on root element
        - val() method for getting current value
        - val(value) method for setting value

    Optional:
        - seed() method for generating test data
        - Support for $disabled attribute

    Widget Responsibilities:

    1. Value Management
       Widgets must implement getter/setter via val() method:

           val() {
               // Getter - return current value
               if (arguments.length === 0) {
                   return this.$id('input').val();
               }
               // Setter - update value
               else {
                   this.data.value = value || '';
                   this.$id('input').val(this.data.value);
               }
           }

    2. Disabled State
       Widgets should respect $disabled attribute:
       - Render with disabled HTML attribute
       - Display grayed-out appearance
       - Still return value via val() getter
       - Do not submit in HTML form (handled by browser)

    3. Test Data (Optional)
       Widgets may implement seed() for debug mode:

           async seed() {
               if (this.args.seeder) {
                   // Generate test data
                   this.val('Test Value');
               }
           }

BUILT-IN WIDGETS

    Text_Input
        Basic text input supporting multiple types and textarea.

        Attributes:
            $type - Input type (text, email, url, tel, number, textarea)
            $rows - Number of rows for textarea (default: 3)
            $placeholder - Placeholder text
            $prefix - Text to prepend (creates input-group)
            $suffix - Text to append (creates input-group)
            $min - Minimum value for number inputs
            $max - Maximum value for number inputs
            $maxlength - Maximum length for text inputs
            $disabled - Disable input (grayed out, still returns value)
            $seeder - Seeder function name for test data

        Examples:

            <Text_Input $type="email" $placeholder="user@example.com" />

            <Text_Input $type="textarea" $rows=5 $placeholder="Enter bio..." />

            <Text_Input $type="number" $min=0 $max=100 />

            <Text_Input $prefix="@" $placeholder="username" />

            <Text_Input $type="url" $disabled=true />

    Select_Input
        Dropdown select with options.

        Attributes:
            $options - Array of options (see below)
            $placeholder - Placeholder option text
            $disabled - Disable select (grayed out, still returns value)
            $seeder - Seeder function name for test data

        Options Format:
            Simple array: ['Option 1', 'Option 2', 'Option 3']

            Object array: [
                {value: 'opt1', label: 'Option 1'},
                {value: 'opt2', label: 'Option 2'}
            ]

            From Blade: $options="{{ json_encode($options_array) }}"

        Examples:

            @php
                $industries = ['Technology', 'Finance', 'Healthcare'];
            @endphp
            <Select_Input $options="{{ json_encode($industries) }}"
                          $placeholder="Select Industry..." />

            @php
                $sizes = [
                    ['value' => 'sm', 'label' => 'Small (1-10)'],
                    ['value' => 'md', 'label' => 'Medium (11-50)'],
                    ['value' => 'lg', 'label' => 'Large (50+)'],
                ];
            @endphp
            <Select_Input $options="{{ json_encode($sizes) }}" />

    Checkbox_Input
        Checkbox with optional label.

        Attributes:
            $label - Label text displayed next to checkbox
            $checked_value - Value when checked (default: "1")
            $unchecked_value - Value when unchecked (default: "0")
            $disabled - Disable checkbox (grayed out, still returns value)

        Examples:

            <Checkbox_Input $label="Subscribe to newsletter" />

            <Checkbox_Input $label="I agree to terms"
                            $checked_value="yes"
                            $unchecked_value="no" />

    Wysiwyg_Input
        Rich text editor using Quill.

        Attributes:
            $placeholder - Placeholder text
            $disabled - Disable editor (not yet implemented)
            $seeder - Seeder function name for test data

        Example:

            <Wysiwyg_Input $placeholder="Enter description..." />

SEEDING TEST DATA

    The seed system generates realistic test data for forms during development.
    Enabled only when window.rsxapp.debug is true.

    Seed Button:
        Rsx_Form automatically displays a "Fill Test Data" button in debug mode.
        Clicking this button calls seed() on all widgets.

    Widget Seeding:
        Widgets implement seed() to generate appropriate test data:

            async seed() {
                if (this.args.seeder) {
                    // TODO: Implement Rsx_Random_Values endpoint
                    let value = 'Test ' + (this.args.seeder || 'Value');
                    this.val(value);
                }
            }

    Seeder Names:
        Specify seeder via $seeder attribute:

            <Text_Input $seeder="company_name" />
            <Text_Input $seeder="email" />
            <Text_Input $seeder="phone" />

    Future Implementation:
        Planned Rsx_Random_Values endpoint will provide:
        - company_name() - Random company names
        - email() - Random email addresses
        - phone() - Random phone numbers
        - first_name() - Random first names
        - last_name() - Random last names
        - address() - Random street addresses
        - city() - Random city names

DISABLED STATE

    Disabled widgets display as read-only but still participate in form
    value collection.

    Behavior:
        - Widget displays grayed-out appearance
        - User cannot interact with widget
        - val() getter still returns current value
        - Value included in form submission via Ajax
        - HTML disabled attribute prevents browser form submission

    Example - Disable Individual Fields:

        <Form_Field $name="email" $label="Email (Cannot Edit)">
            <Text_Input $type="email" $disabled=true />
        </Form_Field>

    Example - Conditional Disable:

        <Form_Field $name="status" $label="Status">
            <Select_Input $options="{{ json_encode($statuses) }}"
                          $disabled="{{ !$can_edit_status }}" />
        </Form_Field>

    Use Cases:
        - Display data that cannot be edited
        - Show calculated or system-managed values
        - Enforce permissions (some users see but cannot edit)
        - Multi-step forms (disable completed steps)

FORM SUBMISSION

    Form submission uses Ajax to send data to controller methods.

    JavaScript Submission:

        $('#save-btn').on('click', function() {
            const $form = $('.Rsx_Form').first();
            const form_component = $form.component();
            form_component.submit();
        });

    What Happens:
        1. Form calls vals() to collect all widget values
        2. Sends values to this.args.action via Ajax.call()
        3. Handles response:
           - Success: Redirect if response.redirect provided
           - Validation errors: Display errors on fields
           - General errors: Log to console

    Controller Method:

        #[Ajax_Endpoint]
        public static function save(Request $request, array $params = []) {
            // Validation
            $validated = $request->validate([
                'email' => 'required|email',
                'name' => 'required|string|max:255',
            ]);

            // Save data
            $user = User::create($validated);

            // Return response
            return [
                'success' => true,
                'redirect' => Rsx::Route('Users_Controller', 'view', $user->id),
            ];
        }

    Validation Errors:

        When validation fails, return errors in format:

        return [
            'success' => false,
            'errors' => [
                'email' => 'The email field is required.',
                'name' => 'The name field is required.',
            ],
        ];

        Form automatically displays errors below each field.

MULTI-COLUMN LAYOUTS

    Use Bootstrap grid for multi-column field layouts:

        <div class="row">
            <div class="col-md-6">
                <Form_Field $name="first_name" $label="First Name">
                    <Text_Input />
                </Form_Field>
            </div>
            <div class="col-md-6">
                <Form_Field $name="last_name" $label="Last Name">
                    <Text_Input />
                </Form_Field>
            </div>
        </div>

        <div class="row">
            <div class="col-md-4">
                <Form_Field $name="city" $label="City">
                    <Text_Input />
                </Form_Field>
            </div>
            <div class="col-md-2">
                <Form_Field $name="state" $label="State">
                    <Text_Input $maxlength=2 />
                </Form_Field>
            </div>
            <div class="col-md-6">
                <Form_Field $name="zip" $label="ZIP Code">
                    <Text_Input />
                </Form_Field>
            </div>
        </div>

CREATING CUSTOM WIDGETS

    Create custom widgets by implementing the widget interface.

    Example - Rating Widget:

        File: rating_input.jqhtml

            <Define:Rating_Input class="Widget">
                <div class="rating">
                    <% for (let i = 1; i <= 5; i++) { %>
                        <i $id="star_<%= i %>"
                           class="bi bi-star<%= this.data.value >= i ? '-fill' : '' %>"
                           data-rating="<%= i %>"></i>
                    <% } %>
                </div>
            </Define:Rating_Input>

        File: rating_input.js

            class Rating_Input extends Form_Input_Abstract {
                on_create() {
                    this.data.value = 0;
                }

                on_ready() {
                    const that = this;
                    this.$.find('[data-rating]').on('click', function() {
                        that.val($(this).data('rating'));
                    });
                }

                val(value) {
                    if (arguments.length === 0) {
                        return this.data.value;
                    } else {
                        this.data.value = value || 0;
                        // Update star display
                        this.$.find('[data-rating]').each(function() {
                            const rating = $(this).data('rating');
                            $(this).toggleClass('bi-star-fill', rating <= value);
                            $(this).toggleClass('bi-star', rating > value);
                        });
                    }
                }

                async seed() {
                    this.val(Math.floor(Math.random() * 5) + 1);
                }
            }

        Usage:

            <Form_Field $name="satisfaction" $label="Rate Your Experience">
                <Rating_Input />
            </Form_Field>

EXAMPLES

    Complete Form Example:

        @php
            $form_data = isset($client) ? [
                'name' => $client->name,
                'email' => $client->email,
                'industry' => $client->industry,
                'active' => $client->active,
            ] : [];

            $industries = ['Technology', 'Finance', 'Healthcare'];
        @endphp

        <Rsx_Form $data="{{ json_encode($form_data) }}"
                  $action="{{ Rsx::Route('Clients_Controller', 'save') }}">

            @if (isset($client))
                <input type="hidden" name="id" value="{{ $client->id }}">
            @endif

            <Form_Field $name="name" $label="Company Name" $required=true>
                <Text_Input $seeder="company_name" />
            </Form_Field>

            <div class="row">
                <div class="col-md-6">
                    <Form_Field $name="email" $label="Email">
                        <Text_Input $type="email" $seeder="email" />
                    </Form_Field>
                </div>
                <div class="col-md-6">
                    <Form_Field $name="phone" $label="Phone">
                        <Text_Input $type="tel" $seeder="phone" />
                    </Form_Field>
                </div>
            </div>

            <Form_Field $name="industry" $label="Industry">
                <Select_Input $options="{{ json_encode($industries) }}"
                              $placeholder="Select Industry..." />
            </Form_Field>

            <Form_Field $name="notes" $label="Notes">
                <Text_Input $type="textarea" $rows=5 />
            </Form_Field>

            <Form_Field $name="active" $label="&nbsp;">
                <Checkbox_Input $label="Active Client" />
            </Form_Field>

            <button type="button" class="btn btn-primary" id="save-btn">
                Save Client
            </button>
        </Rsx_Form>

        <script>
        $('#save-btn').on('click', function() {
            $('.Rsx_Form').first().component().submit();
        });
        </script>

SEE ALSO
    jqhtml(3), ajax(3), validation(3)

RSX Framework                    October 2025            FORMS_AND_WIDGETS(3)