我希望通过css将所有样式属性/值的列表应用于UIComponent的选择器,但我似乎无法在任何地方找到它们的列表。
例如,我有一个BorderContainer,CSS给它 backgroundColor:#869ca7; backgroundAlpha:.5;
从ActionScript函数中我想检索列表{backgroundColor:#869ca7,backgroundAlpha:.5}。但是以一种适用于所有UIComponents的抽象方式(即我不能只调用getStyle(“backgroundColor”);
我尝试了两种方式,但我觉得非常接近但实际上无法检索列表。
感觉我应该能够通过使用UIComponent上的styleDeclaration属性从UIComponents获取属性列表,但它似乎没有显示它具有的样式属性列表。
似乎我应该能够通过调用“uiComponent.getStyle( _ )”来获取值,但这需要我已经知道属性名称。
感谢您提供帮助我的任何见解。
供参考,CSSStyleDeclaration类: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/mx/styles/CSSStyleDeclaration.html
答案 0 :(得分:1)
所以我的初步研究表明,没有直接的函数调用或列表来检索样式属性数组。
我认为唯一的方法是检查级联数组的属性名称。
getStyle代码供参考:
public function getStyle(styleProp:String):*
{
var o:*;
var v:*;
// First look in the overrides, in case setStyle()
// has been called on this CSSStyleDeclaration.
if (overrides)
{
// If the property exists in our overrides, but
// has 'undefined' as its value, it has been
// cleared from this stylesheet so return
// undefined.
if (styleProp in overrides &&
overrides[styleProp] === undefined)
return undefined;
v = overrides[styleProp];
if (v !== undefined) // must use !==
return v;
}
// Next look in the style object that this CSSStyleDeclaration's
// factory function produces; it contains styles that
// were specified in an instance tag of an MXML component
// (if this CSSStyleDeclaration is attached to a UIComponent).
if (factory != null)
{
factory.prototype = {};
o = new factory();
v = o[styleProp];
if (v !== undefined) // must use !==
return v;
}
// Next look in the style object that this CSSStyleDeclaration's
// defaultFactory function produces; it contains styles that
// were specified on the root tag of an MXML component.
if (defaultFactory != null)
{
defaultFactory.prototype = {};
o = new defaultFactory();
v = o[styleProp];
if (v !== undefined) // must use !==
return v;
}
// Return undefined if the style isn't specified
// in any of these three places.
return undefined;
}