Author: Travis Watkins <amaranth@ubuntu.com>

Description: Change decoration plugin dock shadow drawing behavior

 change decoration plugin to draw dock shadows only on the

 desktop window instead of on top of all other windows

Origin: vendor, ubuntu (1:0.8.2-0ubuntu16)

--- a/plugins/decoration.c

+++ b/plugins/decoration.c

@@ -190,6 +190,11 @@ decorDrawWindow (CompWindow	      *w,

     status = (*w->screen->drawWindow) (w, transform, attrib, region, mask);

     WRAP (ds, w->screen, drawWindow, decorDrawWindow);

+    /* we wait to draw dock shadows until we get to the lowest

+       desktop window in the stack */

+    if (w->type & CompWindowTypeDockMask)

+	return status;

+

     if (mask & PAINT_WINDOW_TRANSFORMED_MASK)

 	region = &infiniteRegion;

@@ -226,6 +231,65 @@ decorDrawWindow (CompWindow	      *w,

 					     attrib, mask);

     }

+    if (w->type & CompWindowTypeDesktopMask)

+    {

+	/* we only want to draw on the lowest desktop window, find it and see

+	   if we the window we have is it */

+	CompWindow *window = w->screen->windows;

+	for (window = w->screen->windows; window; window = window->next)

+	{

+	    if (window->type & CompWindowTypeDesktopMask)

+	    {

+		if (window == w)

+		    break;

+		else

+		    return status;

+	    }

+	}

+

+	/* drawing dock shadows now */

+	for (window = w->screen->windows; window; window = window->next)

+	{

+	    if (window->type & CompWindowTypeDockMask && !window->destroyed && !window->invisible)

+	    {

+		DECOR_WINDOW (window);

+

+		if (dw->wd && region->numRects)

+		{

+		    WindowDecoration *wd = dw->wd;

+		    REGION	     box;

+		    int		     i;

+

+		    mask |= PAINT_WINDOW_BLEND_MASK;

+

+		    box.rects	 = &box.extents;

+		    box.numRects = 1;

+

+		    window->vCount = window->indexCount = 0;

+

+		    for (i = 0; i < wd->nQuad; i++)

+		    {

+			box.extents = wd->quad[i].box;

+

+			if (box.extents.x1 < box.extents.x2 &&

+			    box.extents.y1 < box.extents.y2)

+			{

+			    (*window->screen->addWindowGeometry) (window,

+								  &wd->quad[i].matrix, 1,

+								  &box,

+								  region);

+			}

+		    }

+

+		    if (window->vCount)

+			(*window->screen->drawWindowTexture) (window,

+							      &wd->decor->texture->texture,

+							      attrib, mask);

+		}

+	    }

+	}

+    }

+

     return status;

 }