Fix #4114 - "black" being ignored as a color in some contexts.

[potlatch2.git] / net / systemeD / halcyon / styleparser / Style.as

diff --git a/net/systemeD/halcyon/styleparser/Style.as b/net/systemeD/halcyon/styleparser/Style.as
index 3397936948ecfeb108e5eba65d6dd8d33989341d..a28ece13fb4f79e189a9172b6fda573d2185d029 100644 (file)
--- a/net/systemeD/halcyon/styleparser/Style.as
+++ b/net/systemeD/halcyon/styleparser/Style.as
@@ -34,6 +34,9 @@ package net.systemeD.halcyon.styleparser {
                /** Compiled SWFs for each eval. We keep it here, not in the property itself, so that we can retain typing for each property. */
                public var evals:Object={};
                
+               /** TagValue assignments, e.g. { width: tag('lanes'); } */
+               public var tagvalues:Object={};
+               
                /** Make an exact copy of an object.
                        Used when merging cascading styles. (FIXME: this needs some benchmarking - it may be quicker to simply iterate over .properties, 
                        copying each one. */
@@ -52,7 +55,8 @@ package net.systemeD.halcyon.styleparser {
                /** Merge two Style objects. */
                public function mergeWith(additional:Style):void {
                        for each (var prop:String in properties) {
-                               if (additional[prop]) {
+                               // Note extra check for empty arrays, which we use to mean 'undefined' (see setPropertyFromString below)
+                               if (additional[prop] != undefined && !((additional[prop] is Array) && additional[prop].length==0)) {
                                        this[prop]=additional[prop];
                                }
                        }
@@ -69,7 +73,7 @@ package net.systemeD.halcyon.styleparser {
                        return false;
                }
                
-               /** Are there any eval functions defined? */
+               /** Are there any eval functions defined? (This isn't used.) */
                public function hasEvals():Boolean {
                        for (var k:String in evals) { return true; }
                        return false;
@@ -78,16 +82,14 @@ package net.systemeD.halcyon.styleparser {
                /** Run all evals for this Style over the supplied tags.
                        If, for example, the stylesheet contains width=eval('_width+2'), then this will set Style.width to 7. */
                public function runEvals(tags:Object):void {
-                       for (var k:String in evals) {
-                               // ** Do we need to do typing here?
-                               this[k]=evals[k].exec(tags);
-                       }
+                       for (var k:String in evals) this[k]=evals[k].exec(tags);
                }
-
+               
                /** Set a property, casting as correct type. */
                public function setPropertyFromString(k:String,v:*):Boolean {
                        if (!this.hasOwnProperty(k)) { return false; }
                        if (v is Eval) { evals[k]=v; v=1; }
+                       else if (v is TagValue) { tagvalues[k]=v; v=1; }
 
                        // Arrays don't return a proper typeof, so check manually
                        // Note that undefined class variables always have typeof=object,
@@ -116,6 +118,7 @@ package net.systemeD.halcyon.styleparser {
             for each (var k:String in this.properties) {
                                if (this.hasOwnProperty(k)) { str+=k+"="+this[k]+"; "; }
                        }
+                       for each (k in tagvalues) str+=k+";"; 
                        return str;
         }
        }