180551 - Add color, thickness, and invert to the flasher interface. They should not be passed around so often to its methods since they rarely change and really

belong on the interface to begin with.
r=timeless,sr=peterv

layout/inspector/public/inIFlasher.idl

@@ -46,7 +46,11 @@ interface nsIDOMWindowInternal;
 [scriptable, uuid(7B4A099F-6F6E-4565-977B-FB622ADBFF49)]
 interface inIFlasher : nsISupports 
 {
-  void drawElementOutline(in nsIDOMElement aElement, in wstring aColor, in long aThickness, in boolean aInvert);
+  attribute DOMString       color;
+  attribute boolean         invert;
+  attribute unsigned short  thickness;
+
+  void drawElementOutline(in nsIDOMElement aElement);
   void repaintElement(in nsIDOMElement aElement);
   void scrollElementIntoView(in nsIDOMElement aElement);
 };

layout/inspector/src/inFlasher.cpp

@@ -47,11 +47,16 @@
 #include "nsIPresShell.h"
 #include "nsIFrame.h"
 
+#include "prprf.h"
+
 static NS_DEFINE_CID(kInspectorCSSUtilsCID, NS_INSPECTORCSSUTILS_CID);
 
 ///////////////////////////////////////////////////////////////////////////////
 
-inFlasher::inFlasher()
+inFlasher::inFlasher() :
+  mColor(NS_RGB(0,0,0)),
+  mThickness(0),
+  mInvert(PR_FALSE)
 {
   NS_INIT_ISUPPORTS();
   mCSSUtils = do_GetService(kInspectorCSSUtilsCID);
@@ -66,7 +71,72 @@ NS_IMPL_ISUPPORTS1(inFlasher, inIFlasher);
 ///////////////////////////////////////////////////////////////////////////////
 // inIFlasher
 
-NS_IMETHODIMP 
+NS_IMETHODIMP
+inFlasher::GetColor(nsAString& aColor)
+{
+  // Copied from nsGenericHTMLElement::ColorToString()
+  char buf[10];
+  PR_snprintf(buf, sizeof(buf), "#%02x%02x%02x",
+              NS_GET_R(mColor), NS_GET_G(mColor), NS_GET_B(mColor));
+  aColor.Assign(NS_ConvertASCIItoUCS2(buf));
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+inFlasher::SetColor(const nsAString& aColor)
+{
+  NS_ENSURE_FALSE(aColor.IsEmpty(), NS_ERROR_ILLEGAL_VALUE);
+
+  nsAutoString colorStr;
+  colorStr.Assign(aColor);
+
+  if (colorStr.CharAt(0) != '#') {
+    if (NS_ColorNameToRGB(colorStr, &mColor)) {
+      return NS_OK;
+    }
+  }
+  else {
+    colorStr.Cut(0, 1);
+    if (NS_HexToRGB(colorStr, &mColor)) {
+      return NS_OK;
+    }
+  }
+
+  return NS_ERROR_ILLEGAL_VALUE;
+}
+
+NS_IMETHODIMP
+inFlasher::GetThickness(PRUint16 *aThickness)
+{
+  NS_PRECONDITION(aThickness, "Null pointer");
+  *aThickness = mThickness;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+inFlasher::SetThickness(PRUint16 aThickness)
+{
+  mThickness = aThickness;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+inFlasher::GetInvert(PRBool *aInvert)
+{
+  NS_PRECONDITION(aInvert, "Null pointer");
+  *aInvert = mInvert;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+inFlasher::SetInvert(PRBool aInvert)
+{
+  mInvert = aInvert;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
 inFlasher::RepaintElement(nsIDOMElement* aElement)
 {
   nsCOMPtr<nsIDOMWindowInternal> window = inLayoutUtils::GetWindowFor(aElement);
@@ -100,7 +170,7 @@ inFlasher::RepaintElement(nsIDOMElement* aElement)
 }
 
 NS_IMETHODIMP 
-inFlasher::DrawElementOutline(nsIDOMElement* aElement, const PRUnichar* aColor, PRInt32 aThickness, PRBool aInvert)
+inFlasher::DrawElementOutline(nsIDOMElement* aElement)
 {
   nsCOMPtr<nsIDOMWindowInternal> window = inLayoutUtils::GetWindowFor(aElement);
   if (!window) return NS_OK;
@@ -121,18 +191,14 @@ inFlasher::DrawElementOutline(nsIDOMElement* aElement, const PRUnichar* aColor,
   rect.y = origin.y;
   mCSSUtils->AdjustRectForMargins(frame, rect);
   
-  nsAutoString colorStr;
-  colorStr.Assign(aColor);
-  nscolor color;
-  NS_HexToRGB(colorStr, &color);
-
   float p2t;
   presContext->GetPixelsToTwips(&p2t);
 
-  if (aInvert)
+  if (mInvert) {
     rcontext->InvertRect(rect.x, rect.y, rect.width, rect.height);
+  }
 
-  DrawOutline(rect.x, rect.y, rect.width, rect.height, color, aThickness, p2t, rcontext);
+  DrawOutline(rect.x, rect.y, rect.width, rect.height, p2t, rcontext);
 
   return NS_OK;
 }
@@ -164,31 +230,27 @@ inFlasher::ScrollElementIntoView(nsIDOMElement *aElement)
 ///////////////////////////////////////////////////////////////////////////////
 // inFlasher
 
-nsresult
+void
 inFlasher::DrawOutline(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight,
-                       nscolor aColor, PRUint32 aThickness, float aP2T,
-                       nsIRenderingContext* aRenderContext)
+                       float aP2T, nsIRenderingContext* aRenderContext)
 {
-  aRenderContext->SetColor(aColor);
-  DrawLine(aX, aY, aWidth, aThickness, DIR_HORIZONTAL, BOUND_OUTER, aP2T, aRenderContext);
-  DrawLine(aX, aY, aHeight, aThickness, DIR_VERTICAL, BOUND_OUTER, aP2T, aRenderContext);
-  DrawLine(aX, aY+aHeight, aWidth, aThickness, DIR_HORIZONTAL, BOUND_INNER, aP2T, aRenderContext);
-  DrawLine(aX+aWidth, aY, aHeight, aThickness, DIR_VERTICAL, BOUND_INNER, aP2T, aRenderContext);
+  aRenderContext->SetColor(mColor);
 
-  return NS_OK;
+  DrawLine(aX, aY, aWidth, DIR_HORIZONTAL, BOUND_OUTER, aP2T, aRenderContext);
+  DrawLine(aX, aY, aHeight, DIR_VERTICAL, BOUND_OUTER, aP2T, aRenderContext);
+  DrawLine(aX, aY+aHeight, aWidth, DIR_HORIZONTAL, BOUND_INNER, aP2T, aRenderContext);
+  DrawLine(aX+aWidth, aY, aHeight, DIR_VERTICAL, BOUND_INNER, aP2T, aRenderContext);
 }
 
-nsresult
+void
 inFlasher::DrawLine(nscoord aX, nscoord aY, nscoord aLength,
-                    PRUint32 aThickness, PRBool aDir, PRBool aBounds,
-                    float aP2T, nsIRenderingContext* aRenderContext)
+                    PRBool aDir, PRBool aBounds, float aP2T,
+                    nsIRenderingContext* aRenderContext)
 {
-  nscoord thickTwips = NSIntPixelsToTwips(aThickness, aP2T);
+  nscoord thickTwips = NSIntPixelsToTwips(mThickness, aP2T);
   if (aDir) { // horizontal
     aRenderContext->FillRect(aX, aY+(aBounds?0:-thickTwips), aLength, thickTwips);
   } else { // vertical
     aRenderContext->FillRect(aX+(aBounds?0:-thickTwips), aY, thickTwips, aLength);
   }
-
-  return NS_OK;
 }

layout/inspector/src/inFlasher.h

@@ -63,14 +63,18 @@ public:
   virtual ~inFlasher();
 
 protected:
-  nsresult DrawOutline(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight,
-                       nscolor aColor, PRUint32 aThickness, float aP2T,
-                       nsIRenderingContext* aRenderContext);
-  nsresult DrawLine(nscoord aX, nscoord aY, nscoord aLength, PRUint32 aThickness, 
-                    PRBool aDir, PRBool aBounds, float aP2T,
-                    nsIRenderingContext* aRenderContext);
+  void DrawOutline(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight,
+                   float aP2T, nsIRenderingContext* aRenderContext);
+  void DrawLine(nscoord aX, nscoord aY, nscoord aLength,
+                PRBool aDir, PRBool aBounds, float aP2T,
+                nsIRenderingContext* aRenderContext);
 
   nsCOMPtr<nsIInspectorCSSUtils> mCSSUtils;
+
+  nscolor mColor;
+
+  PRUint16 mThickness;
+  PRPackedBool mInvert;
 };
 
 #endif // __inFlasher_h__