Class: ValueElement

Inherits:
Element show all
Defined in:
lib/fxmlloader/value_elts.rb

Instance Attribute Summary collapse

Attributes inherited from Element

#current, #eventHandlerAttributes, #instancePropertyAttributes, #lineNumber, #loadListener, #parent, #parentLoader, #staticPropertyAttributes, #staticPropertyElements, #value, #valueAdapter, #xmlStreamReader

Instance Method Summary collapse

Methods inherited from Element

#add, #addEventHandler, #applyProperty, #callz, #getProperties, #getValueAdapter, #initialize, #isBidirectionalBindingExpression, #isBindingExpression, #isCollection, #isTyped, #populateArrayFromString, #populateListFromString, #processEventHandlerAttributes, #processInstancePropertyAttributes, #processPropertyAttribute, #processValue3, #resolvePrefixedValue, #set, #staticLoad, #updateValue, #warnDeprecatedEscapeSequence

Constructor Details

This class inherits a constructor from Element

Instance Attribute Details

#fx_idObject

Returns the value of attribute fx_id


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# File 'lib/fxmlloader/value_elts.rb', line 57

def fx_id
  @fx_id
end

Instance Method Details

#getListValue(parent, listPropertyName, value) ⇒ Object


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# File 'lib/fxmlloader/value_elts.rb', line 106

def getListValue( parent,  listPropertyName,  value)
  # If possible, coerce the value to the list item type
  if (parent.isTyped())
    listType = parent.getValueAdapter().getGenericType(listPropertyName);

    if (listType != nil)
      itemType = RubyWrapperBeanAdapter.getGenericListItemType(listType);

      if (itemType.is_a? ParameterizedType)
        itemType = (itemType).getRawType();
      end

      value = RubyWrapperBeanAdapter.coerce(value,itemType);
    end
  end

  return value;
end

#processAttribute(prefix, localName, value) ⇒ Object


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# File 'lib/fxmlloader/value_elts.rb', line 203

def processAttribute( prefix,  localName,  value)
  if (prefix != nil				&& prefix == (FXL::FX_NAMESPACE_PREFIX))
    if (localName == (FXL::FX_ID_ATTRIBUTE))
      # Verify that ID is a valid identifier
      if (value == (FXL::NULL_KEYWORD))
        raise LoadException.new("Invalid identifier.");
      end
#
#        value.length.times do |i|
#          # TODO: FIX
#          if (!Java.java.lang.Character.java_send :isJavaIdentifierPart, [Java::char], value[i].to_java(:char))
#            raise LoadException.new("Invalid identifier.");
#          end
#        end
      @fx_id = value;

    elsif (localName == (FXL::FX_CONTROLLER_ATTRIBUTE))
      if (parentLoader.current.parent != nil)
        raise LoadException.new(FXL::FX_NAMESPACE_PREFIX + ":" + FXL::FX_CONTROLLER_ATTRIBUTE		+ " can only be applied to root element.");
      end

      if (parentLoader.controller != nil)
        raise LoadException.new("Controller value already specified.");
      end

      if (!staticLoad)
        type = nil
        begin
          type = value.constantize_by
        rescue ClassNotFoundException => exception
          raise LoadException.new(exception);
        end

        begin
          if (parentLoader.controllerFactory == nil)
            # TODO: does this work?
            parentLoader.controller = type.new
          else
            parentLoder.controller = (parentLoader.controllerFactory.call(type));
          end
        rescue InstantiationException => exception
          raise LoadException.new(exception);
        rescue IllegalAccessException => exception
          raise LoadException.new(exception);
        end
      end
    else
      raise LoadException.new("Invalid attribute.");
    end
  else
    super(prefix, localName, value);
  end
end

#processCharactersObject


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# File 'lib/fxmlloader/value_elts.rb', line 178

def processCharacters()
  type = value.java_class
  defaultProperty = type.getAnnotation(DefaultProperty.java_class);

  # If the default property is a read-only list, add the value to it;
  # otherwise, set the value as the default property
  if (defaultProperty != nil)
    text = xmlStreamReader.getText();
    #TODO: FIX
    text = extraneousWhitespacePattern.matcher(text).replaceAll(" ");

    defaultPropertyName = defaultProperty.value();
    valueAdapter = getValueAdapter();

    if (valueAdapter.read_only?(defaultPropertyName) && List.class.isAssignableFrom(valueAdapter.getType(defaultPropertyName)))
      list = valueAdapter.get(defaultPropertyName);
      list.add(getListValue(self, defaultPropertyName, text));
    else
      valueAdapter.put(defaultPropertyName, text.strip);
    end
  else
    throw LoadException.new(type.getName() + " does not have a default property.");
  end
end

#processEndElementObject


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# File 'lib/fxmlloader/value_elts.rb', line 71

def processEndElement()
  super

  # Build the value, if necessary
  if (value.is_a? Builder)
    updateValue(value.build());
    processValue();
  else
    processInstancePropertyAttributes();
  end
  processEventHandlerAttributes();
  # Process static property attributes
  if (staticPropertyAttributes.length > 0)
    for attribute in staticPropertyAttributes
      processPropertyAttribute(attribute);
    end
  end
  # Process static property elements
  if (staticPropertyElements.length > 0)
    for  element in staticPropertyElements
      RubyWrapperBeanAdapter.put(value, element.sourceType, element.name, element.value);
    end
  end

  rnest -1
  rputs value, ((rfx_id(value) && rfx_id_set?(value)) || rno_show?(value) ? ""  : "end")
  if (parent != nil)
    if (parent.isCollection())
      parent.add(value);
    else
      parent.set value
    end
  end
end

#processStartElementObject


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# File 'lib/fxmlloader/value_elts.rb', line 59

def processStartElement
  super

  updateValue(constructValue());

  if (value.is_a? Builder)
    processInstancePropertyAttributes();
  else
    processValue();
  end
end

#processValueObject


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# File 'lib/fxmlloader/value_elts.rb', line 125

def processValue()
  # If this is the root element, update the value
  if (parent == nil)
    root = value;

    # checking version of fx namespace - throw exception if not supported
    fxNSURI = xmlStreamReader.getNamespaceContext().getNamespaceURI("fx");
    if (fxNSURI != nil)
      fxVersion = fxNSURI[(fxNSURI.rindex("/") + 1)..-1];
      if (parentLoader.compareJFXVersions(FxmlLoader::FX_NAMESPACE_VERSION, fxVersion) < 0)
        raise LoadException.new("Loading FXML document of version "	+ fxVersion + " by JavaFX runtime supporting version " + FxmlLoader::FX_NAMESPACE_VERSION);
      end
    end

    # checking the version JavaFX API - print warning if not supported
    defaultNSURI = xmlStreamReader.getNamespaceContext().getNamespaceURI("");
    if (defaultNSURI != nil)
      nsVersion = defaultNSURI[(defaultNSURI.rindex("/") + 1)..-1]
      jfx_version = if defined? FXL::JAVAFX_VERSION
        FXL::JAVAFX_VERSION
      else
        "http://javafx.com/javafx/2.2"
      end
      if (parentLoader.compareJFXVersions(jfx_version, nsVersion) < 0)
        Logging.getJavaFXLogger().warning("Loading FXML document with JavaFX API of version " + nsVersion + " by JavaFX runtime of version " + FXL::JAVAFX_VERSION);
      end
    end
  end

  # Add the value to the namespace
  if (@fx_id != nil)
    parentLoader.namespace[@fx_id] =  value

    # If the value defines an ID property, set it
    idProperty = value.java_class.annotation(IDProperty.java_class);

    if (idProperty != nil)
      properties = getProperties();
      # set fx:id property value to Node.id only if Node.id was not
      # already set when processing start element attributes
      if (properties[idProperty.value] == nil)
        properties[idProperty.value()]= @fx_id;
      end
    end
    rputs value, "__local_fx_id_setter.call(#{@fx_id.inspect}, self)"
    rfx_id value, @fx_id
    # Set the controller field value
    if (parentLoader.controller != nil)
      field = parentLoader.controller.instance_variable_set("@" + @fx_id, value)
    end
  end
end