qdr.app.tools/UILayoutDefinitionFormat/ui-layout-def.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
           targetNamespace="ui-layout-definition"
           xmlns:tns="ui-layout-definition"
           xmlns:patterns="ui-layout-patterns"
           xmlns:views="ui-layout-views" 
           xmlns:validation="ui-layout-validation"
           xmlns:basic="ui-layout-basic-controls"
           xmlns:winforms="ui-layout-winforms-controls"
           xmlns:avalonia="ui-layout-avalonia-controls"
           elementFormDefault="qualified"
           version="1.3">

  <!-- Import external schemas -->
  <xs:import namespace="ui-layout-patterns" schemaLocation="ui-layout-patterns.xsd"/>
  <xs:import namespace="ui-layout-views" schemaLocation="ui-layout-views.xsd"/>
  <xs:import namespace="ui-layout-validation" schemaLocation="ui-layout-validation.xsd"/>
  <xs:import namespace="ui-layout-basic-controls" schemaLocation="ui-layout-basic-controls.xsd"/>
  <xs:import namespace="ui-layout-winforms-controls" schemaLocation="ui-layout-winforms-controls.xsd"/>
  <xs:import namespace="ui-layout-avalonia-controls" schemaLocation="ui-layout-avalonia-controls.xsd"/>

  <!-- Root element -->
  <xs:element name="ui-layout-def" type="tns:UILayoutDefType"/>

  <!-- Root element for window include files -->
  <xs:element name="windows" type="tns:WindowIncludeFileType"/>

  <!-- Main document structure -->
  <xs:complexType name="UILayoutDefType">
    <xs:sequence>
      <xs:element name="validation-rules" type="tns:ValidationRulesType" minOccurs="0"/>
      <xs:element name="patterns" type="tns:PatternsType"/>
      <xs:element name="views" type="tns:ViewsType" minOccurs="0"/>
      <xs:element name="window-includes" type="tns:WindowIncludesType" minOccurs="0"/>
      <xs:element name="window" type="tns:WindowType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
    <xs:attribute name="version" type="xs:string" default="1.2"/>
    <!-- ENHANCEMENT: Version compatibility attributes -->
    <xs:attribute name="schema-version" type="xs:string" fixed="1.2"/>
    <xs:attribute name="min-version" type="xs:string" default="1.0"/>
    <xs:attribute name="max-version" type="xs:string" default="2.0"/>
    <xs:attribute name="target-platform" type="tns:PlatformEnum" default="basic"/>
    <!-- ENHANCEMENT: Accessibility compliance level -->
    <xs:attribute name="accessibility-compliance" type="tns:AccessibilityLevelEnum" default="basic"/>
  </xs:complexType>

  <!-- Platform Enumeration -->
  <xs:simpleType name="PlatformEnum">
    <xs:restriction base="xs:string">
      <xs:enumeration value="basic"/>
      <xs:enumeration value="winforms"/>
      <xs:enumeration value="avalonia"/>
      <xs:enumeration value="kde"/>
      <xs:enumeration value="web"/>
      <xs:enumeration value="mobile"/>
      <xs:enumeration value="mixed"/>
    </xs:restriction>
  </xs:simpleType>

  <!-- ENHANCEMENT: Accessibility Level Enumeration -->
  <xs:simpleType name="AccessibilityLevelEnum">
    <xs:restriction base="xs:string">
      <xs:enumeration value="none"/>
      <xs:enumeration value="basic"/>
      <xs:enumeration value="wcag-a"/>
      <xs:enumeration value="wcag-aa"/>
      <xs:enumeration value="wcag-aaa"/>
      <xs:enumeration value="section-508"/>
    </xs:restriction>
  </xs:simpleType>

  <!-- Window Include Files Structure -->
  <xs:complexType name="WindowIncludeFileType">
    <xs:sequence>
      <xs:element name="window" type="tns:WindowType" maxOccurs="unbounded"/>
    </xs:sequence>
    <xs:attribute name="target-platform" type="tns:PlatformEnum" default="basic"/>
    <!-- ENHANCEMENT: Version tracking for include files -->
    <xs:attribute name="schema-version" type="xs:string" default="1.2"/>
  </xs:complexType>

  <!-- Window Includes -->
  <xs:complexType name="WindowIncludesType">
    <xs:sequence>
      <xs:element name="window-include" type="tns:WindowIncludeType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="WindowIncludeType">
    <xs:attribute name="src" type="xs:string" use="required"/>
    <xs:attribute name="important" type="xs:boolean" default="false"/>
    <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
    <!-- ENHANCEMENT: Version constraints for includes -->
    <xs:attribute name="min-version" type="xs:string"/>
    <xs:attribute name="max-version" type="xs:string"/>
  </xs:complexType>

  <!-- Validation Rules (simplified - just includes) -->
  <xs:complexType name="ValidationRulesType">
    <xs:sequence>
      <xs:element name="validation-include" type="tns:ValidationIncludeType" minOccurs="0" maxOccurs="unbounded"/>
      <xs:element name="rule" type="validation:ValidationRuleType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="ValidationIncludeType">
    <xs:attribute name="src" type="xs:string" use="required"/>
    <xs:attribute name="important" type="xs:boolean" default="false"/>
    <!-- ENHANCEMENT: Version constraints -->
    <xs:attribute name="min-version" type="xs:string"/>
    <xs:attribute name="max-version" type="xs:string"/>
  </xs:complexType>

  <!-- Patterns (simplified - mainly includes) -->
  <xs:complexType name="PatternsType">
    <xs:sequence>
      <xs:element name="pattern-include" type="tns:PatternIncludeType" minOccurs="0" maxOccurs="unbounded"/>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element name="control" type="patterns:ControlType"/>
        <xs:element name="structure" type="patterns:StructureType"/>
        <xs:element name="wireframe" type="patterns:WireframeType"/>
      </xs:choice>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="PatternIncludeType">
    <xs:attribute name="src" type="xs:string" use="required"/>
    <xs:attribute name="important" type="xs:boolean" default="false"/>
    <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
    <!-- ENHANCEMENT: Version constraints -->
    <xs:attribute name="min-version" type="xs:string"/>
    <xs:attribute name="max-version" type="xs:string"/>
  </xs:complexType>

  <!-- Views (simplified - mainly includes) -->
  <xs:complexType name="ViewsType">
    <xs:sequence>
      <xs:element name="view-include" type="tns:ViewIncludeType" minOccurs="0" maxOccurs="unbounded"/>
      <xs:element name="view" type="views:ViewType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="ViewIncludeType">
    <xs:attribute name="src" type="xs:string" use="required"/>
    <xs:attribute name="important" type="xs:boolean" default="false"/>
    <!-- ENHANCEMENT: Version constraints -->
    <xs:attribute name="min-version" type="xs:string"/>
    <xs:attribute name="max-version" type="xs:string"/>
  </xs:complexType>

  <!-- ENHANCEMENT: Window Definition with data binding and accessibility -->
  <xs:complexType name="WindowType">
    <xs:sequence>
      <xs:element name="attributes" type="tns:WindowAttributesType" minOccurs="0"/>
      <xs:element name="view-properties" type="tns:ViewPropertiesType" minOccurs="0"/>
      <!-- ENHANCEMENT: Data binding support -->
      <xs:element name="data-binding" type="tns:DataBindingType" minOccurs="0"/>
      <!-- ENHANCEMENT: Accessibility configuration -->
      <xs:element name="accessibility" type="tns:AccessibilityType" minOccurs="0"/>
      <xs:choice>
        <xs:element name="slot-overrides" type="tns:SlotOverridesType"/>
        <xs:element name="wireframe-instance" type="tns:WireframeInstanceType"/>
        <xs:group ref="tns:PlatformControlContentGroup"/>
      </xs:choice>
    </xs:sequence>
    <xs:attribute name="name" type="xs:string" use="required"/>
    <xs:attribute name="title" type="xs:string" use="required"/>
    <xs:attribute name="wireframe" type="xs:string"/>
    <xs:attribute name="view" type="xs:string"/>
    <xs:attribute name="target-platform" type="tns:PlatformEnum" default="basic"/>
    <!-- ENHANCEMENT: Schema version tracking -->
    <xs:attribute name="schema-version" type="xs:string" default="1.2"/>
  </xs:complexType>

  <!-- ENHANCEMENT: Data Binding Support -->
  <xs:complexType name="DataBindingType">
    <xs:sequence>
      <xs:element name="data-context" type="tns:DataContextBindingType" minOccurs="0"/>
      <xs:element name="view-model" type="tns:ViewModelBindingType" minOccurs="0"/>
      <xs:element name="binding-properties" type="tns:BindingPropertiesType" minOccurs="0"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="DataContextBindingType">
    <xs:attribute name="source" type="xs:string" use="required"/>
    <xs:attribute name="type" type="xs:string"/>
    <xs:attribute name="mode" type="tns:BindingModeEnum" default="TwoWay"/>
  </xs:complexType>

  <xs:complexType name="ViewModelBindingType">
    <xs:attribute name="class" type="xs:string" use="required"/>
    <xs:attribute name="assembly" type="xs:string"/>
    <xs:attribute name="namespace" type="xs:string"/>
  </xs:complexType>

  <xs:complexType name="BindingPropertiesType">
    <xs:sequence>
      <xs:element name="property" type="tns:BindingPropertyType" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="BindingPropertyType">
    <xs:attribute name="control" type="xs:string" use="required"/>
    <xs:attribute name="property" type="xs:string" use="required"/>
    <xs:attribute name="binding-path" type="xs:string" use="required"/>
    <xs:attribute name="mode" type="tns:BindingModeEnum" default="TwoWay"/>
    <xs:attribute name="converter" type="xs:string"/>
    <xs:attribute name="validation-rule" type="xs:string"/>
  </xs:complexType>

  <xs:simpleType name="BindingModeEnum">
    <xs:restriction base="xs:string">
      <xs:enumeration value="OneWay"/>
      <xs:enumeration value="TwoWay"/>
      <xs:enumeration value="OneTime"/>
      <xs:enumeration value="OneWayToSource"/>
    </xs:restriction>
  </xs:simpleType>

  <!-- ENHANCEMENT: Accessibility Support -->
  <xs:complexType name="AccessibilityType">
    <xs:sequence>
      <xs:element name="screen-reader" type="tns:ScreenReaderType" minOccurs="0"/>
      <xs:element name="keyboard-navigation" type="tns:KeyboardNavigationType" minOccurs="0"/>
      <xs:element name="color-contrast" type="tns:ColorContrastType" minOccurs="0"/>
    </xs:sequence>
    <xs:attribute name="compliance-level" type="tns:AccessibilityLevelEnum" default="basic"/>
  </xs:complexType>

  <xs:complexType name="ScreenReaderType">
    <xs:attribute name="window-title" type="xs:string"/>
    <xs:attribute name="description" type="xs:string"/>
    <xs:attribute name="landmark-role" type="xs:string"/>
  </xs:complexType>

  <xs:complexType name="KeyboardNavigationType">
    <xs:attribute name="tab-order-start" type="xs:int" default="0"/>
    <xs:attribute name="focus-trap" type="xs:boolean" default="false"/>
    <xs:attribute name="escape-closes" type="xs:boolean" default="true"/>
  </xs:complexType>

  <xs:complexType name="ColorContrastType">
    <xs:attribute name="high-contrast-support" type="xs:boolean" default="true"/>
    <xs:attribute name="minimum-ratio" type="xs:decimal" default="4.5"/>
  </xs:complexType>

  <!-- Window Attributes -->
  <xs:complexType name="WindowAttributesType">
    <xs:sequence>
      <xs:element name="attribute" maxOccurs="unbounded">
        <xs:complexType>
          <xs:attribute name="name" type="xs:string" use="required"/>
          <xs:attribute name="value" type="xs:string" use="required"/>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>

  <!-- View Properties -->
  <xs:complexType name="ViewPropertiesType">
    <xs:sequence>
      <xs:element name="role" type="views:WindowRoleEnum"/>
      <xs:element name="default" type="xs:boolean" minOccurs="0"/>
      <xs:element name="modal" type="xs:boolean" minOccurs="0"/>
      <xs:element name="data-context-binding" type="xs:string" minOccurs="0"/>
      <xs:element name="parent-window" type="xs:string" minOccurs="0"/>
    </xs:sequence>
  </xs:complexType>

  <!-- ENHANCED: Slot Overrides with conditional visibility -->
  <xs:complexType name="SlotOverridesType">
    <xs:sequence>
      <xs:element name="slot" type="tns:SlotOverrideType" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>

  <!-- ENHANCED: Slot Override Type with conditional visibility attributes -->
  <xs:complexType name="SlotOverrideType">
    <xs:complexContent>
      <xs:extension base="tns:PlatformControlContentType">
        <xs:attribute name="name" type="xs:string" use="required"/>
        
        <!-- NEW: Conditional visibility attributes for slot overrides -->
        <xs:attribute name="visibility-binding" type="xs:string"/>
        <xs:attribute name="visibility-value" type="xs:string"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <!-- Wireframe Instance -->
  <xs:complexType name="WireframeInstanceType">
    <xs:sequence>
      <xs:element name="slot" type="tns:SlotOverrideType" maxOccurs="unbounded"/>
    </xs:sequence>
    <xs:attribute name="name" type="xs:string" use="required"/>
    <xs:attribute name="wireframe" type="xs:string" use="required"/>
  </xs:complexType>

  <!-- Platform-Aware Control Content -->
  <xs:complexType name="PlatformControlContentType" mixed="true">
    <xs:group ref="tns:PlatformControlContentGroup" minOccurs="0" maxOccurs="unbounded"/>
    <xs:anyAttribute processContents="lax"/>
  </xs:complexType>

  <!-- Platform Control Content Group - Supports all platforms -->
  <xs:group name="PlatformControlContentGroup">
    <xs:choice>
      <!-- Basic Controls (always available) -->
      <xs:group ref="basic:BasicControlContentGroup"/>
      
      <!-- WinForms Controls (conditional) -->
      <xs:group ref="winforms:WinFormsControlContentGroup"/>
      
      <!-- Avalonia Controls (conditional) -->
      <xs:group ref="avalonia:AvaloniaControlContentGroup"/>
      
      <!-- Special Elements -->
      <xs:element name="wireframe-instance" type="tns:WireframeInstanceType"/>
      
      <!-- Allow any other elements for extensibility -->
      <xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
    </xs:choice>
  </xs:group>

  <!-- Control Instance (unified across platforms) -->
  <xs:complexType name="ControlInstanceType">
    <xs:complexContent>
      <xs:extension base="tns:PlatformControlContentType">
        <xs:attribute name="name" type="xs:string" use="required"/>
        <xs:attribute name="slot" type="xs:string"/>
        <xs:attribute name="platform-hint" type="tns:PlatformEnum"/>
        <!-- ENHANCEMENT: Schema version tracking -->
        <xs:attribute name="schema-version" type="xs:string" default="1.2"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

</xs:schema>