Class: KeyPathMonitor

Inherits:
Object
  • Object
show all
Defined in:
lib/fxmlloader/j8_expression_value.rb

Instance Method Summary collapse

Constructor Details

#initialize(this, keyPathIterator) ⇒ KeyPathMonitor

Returns a new instance of KeyPathMonitor.



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# File 'lib/fxmlloader/j8_expression_value.rb', line 127

def initialize(this, keyPathIterator) 
  @key = keyPathIterator.next();
  @this = this
  
        
  @listChangeListener = ListChangeListener.impl do |name, change|
    while (@change.next()) 
      index = @key.to_i

      if (index >= change.getFrom() && index < change.getTo()) 
        @this.fireValueChangedEvent();
        remonitor();
      end
    end
  end
      

  @mapChangeListener = MapChangeListener.impl do |name, change|
    if (@key == (change.getKey())) 
      @this.fireValueChangedEvent();
      remonitor();
    end
  end
      

  @propertyChangeListener = ChangeListener.impl do |name, observable, oldValue, newValue|
    dputs "Normal property changed #{name}, #{observable}, #{oldValue}, #{newValue} for #{@key}"
    if (@key == (observable.getName())) 
      dputs "FIRE!"
      
      @this.fireValueChangedEvent();
      remonitor();
    end
  end

  if (keyPathIterator.hasNext()) 
    @next = KeyPathMonitor.new(this, keyPathIterator);
  else 
    @next = nil;
  end
end

Instance Method Details

#monitor(namespace) ⇒ Object 



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# File 'lib/fxmlloader/j8_expression_value.rb', line 169

def monitor(namespace) 
  if (namespace.is_a? ObservableList) 
    namespace.java_send :addListener, [Java::javafx.collections.ListChangeListener.java_class],@listChangeListener
  elsif (namespace.is_a? ObservableMap) 
    namespace.java_send :addListener, [Java::javafx.collections.MapChangeListener.java_class], @mapChangeListener
  else 
    namespaceAdapter = RubyWrapperBeanAdapter.for(namespace);
    propertyModel = namespaceAdapter.getPropertyModel(@key).to_java
    dputs "properyt model is now #{propertyModel}"
    if (propertyModel != nil) 
      propertyModel.java_send :addListener, [Java::javafx.beans.value.ChangeListener.java_class], @propertyChangeListener
    end

    @namespace = namespaceAdapter;
  end

  @namespace = namespace;

  if (@next != nil) 
    value = Expression.get(@namespace, @key)
    if (value != nil) 
      @next.monitor(value);
    end
  end
end

#remonitor ⇒ Object 



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# File 'lib/fxmlloader/j8_expression_value.rb', line 216

def remonitor() 
  if (@next != nil) 
    @next.unmonitor();
    value = Expression.get(@namespace, @key);
    if (value != nil) 
      @next.monitor(value);
    end
  end
end

#unmonitor ⇒ Object 



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# File 'lib/fxmlloader/j8_expression_value.rb', line 195

def unmonitor() 
  if (@namespace.is_a? ObservableList) 
    @namespace.java_send :removeListener, [Java::javafx.collections.ListChangeListener.java_class], @listChangeListener
  elsif (@namespace.is_a? ObservableMap) 
    @namespace.java_send :removeListener, [Java::javafx.collections.MapChangeListener.java_class], @mapChangeListener
  elsif (@namespace != nil) 
    namespaceAdapter = @namespace;
    propertyModel = namespaceAdapter.getPropertyModel(@key);

    if (propertyModel != nil) 
      propertyModel.java_send :removeListener, [Java::javafx.beans.value.ChangeListener.java_class], @propertyChangeListener
    end
  end

  @namespace = nil;

  if (@next != nil) 
    @next.unmonitor();
  end
end