Class: QObject

Inherits:
Object
  • Object
show all
Defined in:
lib/QWebChannel/QObject.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, data, webChannel) ⇒ QObject

def addMethod(methodData)



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# File 'lib/QWebChannel/QObject.rb', line 200

def initialize(name, data, webChannel)
    @signalNameObjectHash={} #信号名字与信号对象的映射。
    @__id__=name
    @webChannel=webChannel
    @propertyNameIndexMap={} #记录映射关系。属性名字与属性索引之间的映射关系。
    
    webChannel.objects[name]=self
    
    puts "__id__: #{@__id__}" #debug.
    
    
    @__objectSignals__ = {}
    
    @__propertyCache__ = {}
    
    @object=self
    
    data['methods'].each do |method|
        puts "current method: #{method}" #debug
        addMethod(method)
    end
    
    data['properties'].each do |property|
        bindGetterSetter(property)
    end
    
    data['signals'].each do |signal|
        addSignal(signal, false)
    end
    
    puts "enums: #{data['enums']}" #Debug.
    
    if data['enums']
        data['enums'].each do |name|
            @object[name]=data['enums'][name]
        end #data['enums'].each do |name|
    end #if data['enums']
end

Instance Attribute Details

#__id__Object

Returns the value of attribute __id__



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# File 'lib/QWebChannel/QObject.rb', line 3

def __id__
  @__id__
end

#__objectSignals__Object

Returns the value of attribute __objectSignals__



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# File 'lib/QWebChannel/QObject.rb', line 4

def __objectSignals__
  @__objectSignals__
end

#__propertyCache__Object

Returns the value of attribute __propertyCache__



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# File 'lib/QWebChannel/QObject.rb', line 2

def __propertyCache__
  @__propertyCache__
end

#webChannelObject

Returns the value of attribute webChannel



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# File 'lib/QWebChannel/QObject.rb', line 5

def webChannel
  @webChannel
end

Instance Method Details

#[](signalName) ⇒ Object

def []=(signalName, signalObject)



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# File 'lib/QWebChannel/QObject.rb', line 66

def [](signalName)
    @signalNameObjectHash[signalName]
end

#[]=(signalName, signalObject) ⇒ Object

def unwrapProperties()



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# File 'lib/QWebChannel/QObject.rb', line 62

def []=(signalName, signalObject)
    @signalNameObjectHash[signalName]=signalObject
end

#addMethod(methodData) ⇒ Object

def addSignal(signalData, isPropertyNotifySignal)



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# File 'lib/QWebChannel/QObject.rb', line 164

def addMethod(methodData)
    methodName=methodData[0]
    methodIdx=methodData[1]
    
    @object.define_singleton_method(methodName) do |*arguments|
        args=[]
        callback=nil
        
        arguments.each do |argument|
            puts "argument class: #{argument.class}" #debug.
            if (argument.is_a?(Proc))
                callback=argument
            elsif ( (argument.is_a?(QObject))  && (@webChannel.objects[argument.__id__] !=nil ) )
                args << ({"id" => argument.__id__})
            else
                args << argument
            end
        end #arguments.each do |argument|
        
        puts "__id__: #{@object.__id__}" #debug.

        
        @webChannel.exec({ "type" => QWebChannelMessageTypes::INVOKEMETHOD,  "object" => @object.__id__, "method" => methodIdx, "args" => args }) do |response|
            if (response!=nil)
                result = @object.unwrapQObject(response)
                
                if (callback)
                    callback.call(result)
                end
            end #if (response!=nil)
        end #@webChannel.exec() do |response|
        
        
    end #@object.define_singleton_method(methodName) do |*arguments|
end

#addSignal(signalData, isPropertyNotifySignal) ⇒ Object

def signalEmitted(signalName, signalArgs)



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# File 'lib/QWebChannel/QObject.rb', line 157

def addSignal(signalData, isPropertyNotifySignal)
    signalName=signalData[0]
    signalIndex=signalData[1]
    
    @object[signalName]=QSignal.new(signalName, signalIndex, @object, isPropertyNotifySignal) #添加信号。
end

#bindGetterSetter(propertyInfo) ⇒ Object

def [](signalName)



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# File 'lib/QWebChannel/QObject.rb', line 70

def bindGetterSetter(propertyInfo)
    propertyIndex=propertyInfo[0]
    propertyName=propertyInfo[1]
    notifySignalData=propertyInfo[2]
    
    @object.__propertyCache__[propertyIndex]=propertyInfo[3]
    
    if (notifySignalData)
        if (notifySignalData[0] == 1)
            notifySignalData[0]=propertyName+"Changed"
        end
        addSignal(notifySignalData, true)
    end #if (notifySignalData)
    
    defineProperty(propertyName, propertyIndex) #定义属性。对应于Object.defineProperty.
end

#defineProperty(propertyName, propertyIndex) ⇒ Object

def bindGetterSetter(propertyInfo)



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# File 'lib/QWebChannel/QObject.rb', line 87

def defineProperty(propertyName, propertyIndex)
    @propertyNameIndexMap[propertyName]=propertyIndex #记录映射关系。
#         define_property_by_prototype(propertyName)
    
    
            #getter
#         self.class_eval( " def #{attr_name}; @#{attr_name};   end  " )
    self.instance_eval %Q{
        def #{propertyName}
            propertyIndex=@propertyNameIndexMap["#{propertyName}"] #获取属性索引。
            puts "propertyIndex: #{propertyIndex}, propertyName: #{propertyName}, object: #{@object}" #Debug.
           @object.__propertyCache__[propertyIndex]
        end
        }

    #setter
    self.instance_eval %Q{
        def #{propertyName}=(val)
            propertyIndex=@propertyNameIndexMap["#{propertyName}"] #获取属性索引。

            
            @object.__propertyCache__[propertyIndex]=val
            
            valueToSend=val
            
            if (valueToSend.is_a?(QObject) && @webChannel.objects[valueToSend.__id__] != nil)
                valueToSend={"id" => valueToSend.__id__}
                
            end
            
            puts "Sending set property message" #Debug.
            @webChannel.exec( {"type" => QWebChannelMessageTypes::SETPROPERTY, "object" => @object.__id__ , "property" => propertyIndex, "value" => valueToSend } )
            

        end


        }

end

#invokeSignalCallbacks(signalName, signalArgs) ⇒ Object

def defineProperty(propertyName)



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# File 'lib/QWebChannel/QObject.rb', line 128

def invokeSignalCallbacks(signalName, signalArgs)
    connections=@object.__objectSignals__[signalName]
    
    if (connections) #存在连接。
        connections.each do |callback| #一个个连接地处理。
            callback.call(*signalArgs) #抹平数组。
        end #connections.each do |callback| #一个个连接地处理。
    end #if (connections)
end

#propertyUpdate(signals, propertyMap) ⇒ Object

def invokeSignalCallbacks(signalName, signalArgs)



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# File 'lib/QWebChannel/QObject.rb', line 138

def propertyUpdate(signals, propertyMap)
    propertyMap.each do |propertyIndex, propertyValue|
        puts "updating property, index: #{propertyIndex}, value: #{propertyValue}, object: #{@object}" #Debug.
        @object.__propertyCache__[propertyIndex]=propertyValue
        puts "updating property, property cache: #{@object.__propertyCache__}" #Debug.
        puts "updating property, updated property value: #{@object.__propertyCache__[propertyIndex]}" #Debug.
        
    end #propertyMap.each do |propertyIndex, propertyValue|
    
    signals.each do |signalName|
        invokeSignalCallbacks(signalName, signals[signalName])
    end #signals.each do |signalName|    
end

#signalEmitted(signalName, signalArgs) ⇒ Object

def propertyUpdate(signals, propertyMap)



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# File 'lib/QWebChannel/QObject.rb', line 152

def signalEmitted(signalName, signalArgs)
    puts "signalArgs: #{signalArgs}" #debug.
    invokeSignalCallbacks(signalName, self.unwrapQObject(signalArgs))
end

#unwrapPropertiesObject

解码出属性。



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# File 'lib/QWebChannel/QObject.rb', line 55

def unwrapProperties()
    @object.__propertyCache__.each do |propertyIdx, propertyObject| #一个个地解码属性。
        puts "propertyIdx: #{propertyIdx}" #Debug.
        @object.__propertyCache__[propertyIdx]=@object.unwrapQObject(@object.__propertyCache__[propertyIdx])
    end #@object.__propertyCache__.each do |propertyIdx, propertyObject| #一个个地解码属性。
end

#unwrapQObject(response) ⇒ Object



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# File 'lib/QWebChannel/QObject.rb', line 7

def unwrapQObject(response)
    puts "response class: #{response.class}" #debug
    if (response.is_a?(Array))
        ret = []
        
        response.each do |responseI|
            ret << @object.unwrapQObject(responseI)
        end
        
        return ret
    end #if (response.is_a?(Array))
    
    
    if (!response || response.is_a?(Fixnum)  ||  response.is_a?(Float)  || response.is_a?(TrueClass) || !response["__QObject*__"] || response.id == nil)
        return response
    end
    
    objectId=response.id
    
    if (@webChannel.objects[objectId])
        return @webChannel.objects[objectId]
    end


    qObject=QObject.new(objectId, response.data, @webChannel)
    
    qObject.destroyed.connect() do 
        if (@webChannel.objects[objectId]==qObject)
            @webChannel.objects.delete(objectId)
            
            propertyNames=[]
            
            qObject.each do |propertyName|
                propertyNames << propertyName
            end
            
            propertyNames.each do |propertyName|
                qObject.delete(propertyName)
            end
        end #if (@webChannel.objects[objectId]==qObject)
    end #qObject.destroyed.connect() do 
    
    qObject.unwrapProperties()
    
    return qObject
end