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Exporter: replaced 'aspirin' dependency with 'aspire'
com.threerings.aspirin is no longer maintained; aspire is its actively-developed replacement. aspire does not include any display list functionality, so I've copied aspirin's DisplayUtil and TextFieldUtil classes into flump.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| // | ||
| // Flump - Copyright 2013 Flump Authors | ||
|
|
||
| package flump { | ||
|
|
||
| import flash.display.DisplayObject; | ||
| import flash.display.DisplayObjectContainer; | ||
|
|
||
| public class DisplayUtil | ||
| { | ||
| /** | ||
| * Call <code>callback</code> for <code>disp</code> and all its descendants. | ||
| * | ||
| * This is nearly exactly like mx.utils.DisplayUtil.walkDisplayObjects, | ||
| * except this method copes with security errors when examining a child. | ||
| * @param disp the root of the hierarchy at which to start the iteration | ||
| * @param callback function to call for each node in the display tree for disp. The passed | ||
| * object will never be null and the function will be called exactly once for each node, unless | ||
| * iteration is halted. The callback can have one of four signatures: | ||
| * <listing version="3.0"> | ||
| * function callback (disp :DisplayObject) :void | ||
| * function callback (disp :DisplayObject) :Boolean | ||
| * function callback (disp :DisplayObject, depth :int) :void | ||
| * function callback (disp :DisplayObject, depth :int) :Boolean | ||
| * </listing> | ||
| * | ||
| * If <code>callback</code> returns <code>true</code>, traversal will halt. | ||
| * | ||
| * The passed in depth is 0 for <code>disp</code>, and increases by 1 for each level of | ||
| * children. | ||
| * | ||
| * @return <code>true</code> if <code>callback</code> returned <code>true</code> | ||
| */ | ||
| public static function applyToHierarchy ( | ||
| root :DisplayObject, callback :Function, securityErrorCallback :Function=null, | ||
| maxDepth :int=int.MAX_VALUE) :Boolean | ||
| { | ||
| var toApply :Function = callback; | ||
| // Earlier versions of this function didn't pass a depth to callback, so don't | ||
| // assume that. Since we know we're getting a function of length 1 or 2, adapt manually | ||
| // instead of using F. | ||
| if (callback.length == 1) { | ||
| toApply = function (disp :DisplayObject, depth :int) :Boolean { | ||
| return callback(disp); | ||
| } | ||
| } | ||
| return applyToHierarchy0(root, maxDepth, toApply, securityErrorCallback, 0); | ||
| } | ||
|
|
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| /** Helper for applyToHierarchy */ | ||
| protected static function applyToHierarchy0 (root :DisplayObject, maxDepth :int, | ||
| callback :Function, securityErrorCallback :Function, depth :int) :Boolean | ||
| { | ||
| // halt traversal if callbackFunction returns true | ||
| if (Boolean(callback(root, depth))) { | ||
| return true; | ||
| } | ||
|
|
||
| if (++depth > maxDepth || !(root is DisplayObjectContainer)) { | ||
| return false; | ||
| } | ||
| var container :DisplayObjectContainer = DisplayObjectContainer(root); | ||
| var nn :int = container.numChildren; | ||
| for (var ii :int = 0; ii < nn; ii++) { | ||
| var child :DisplayObject; | ||
| try { | ||
| child = container.getChildAt(ii); | ||
| } catch (err :SecurityError) { | ||
| if (securityErrorCallback != null) { | ||
| securityErrorCallback(err, depth); | ||
| } | ||
| continue; | ||
| } | ||
| if (applyToHierarchy0(child, maxDepth, callback, securityErrorCallback, depth)) { | ||
| return true; | ||
| } | ||
| } | ||
|
|
||
| return false; | ||
| } | ||
| } | ||
| } |
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