CSS Transforms: Implement transform-origin

Source/core/css/resolver/StyleBuilderCustom.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
@@ skipping 564 matching lines @@
 
     ASSERT(valueList->length() <= 2);
     CSSPrimitiveValue* eachLineValue = toCSSPrimitiveValue(valueList->item(1));
     if (eachLineValue) {
         ASSERT(eachLineValue->getValueID() == CSSValueEachLine);
         state.style()->setTextIndentLine(TextIndentEachLine);
     } else
         state.style()->setTextIndentLine(TextIndentFirstLine);
 }
 
+void StyleBuilderFunctions::applyInitialCSSPropertyTransformOrigin(StyleResolverState& state)
+{
+    applyInitialCSSPropertyWebkitTransformOriginX(state);
+    applyInitialCSSPropertyWebkitTransformOriginY(state);
+    applyInitialCSSPropertyWebkitTransformOriginZ(state);
+}
+
+void StyleBuilderFunctions::applyInheritCSSPropertyTransformOrigin(StyleResolverState& state)
+{
+    applyInheritCSSPropertyWebkitTransformOriginX(state);
+    applyInheritCSSPropertyWebkitTransformOriginY(state);
+    applyInheritCSSPropertyWebkitTransformOriginZ(state);
+}
+
+void StyleBuilderFunctions::applyValueCSSPropertyTransformOrigin(StyleResolverState& state, CSSValue* value)
+{
+    CSSValueList* list = toCSSValueList(value);
+    ASSERT(list->length() == 3);
+    CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(list->item(0));
+    if (primitiveValue->isValueID()) {
+        switch (primitiveValue->getValueID()) {
+        case CSSValueLeft:
+            state.style()->setTransformOriginX(Length(0, Percent));
+            break;
+        case CSSValueRight:
+            state.style()->setTransformOriginX(Length(100, Percent));
+            break;
+        case CSSValueCenter:
+            state.style()->setTransformOriginX(Length(50, Percent));
+            break;
+        default:
+            ASSERT_NOT_REACHED();
+        }
+    } else {
+        state.style()->setTransformOriginX(StyleBuilderConverter::convertLength(state, primitiveValue));
+    }
+
+    primitiveValue = toCSSPrimitiveValue(list->item(1));
+    if (primitiveValue->isValueID()) {
+        switch (primitiveValue->getValueID()) {
+        case CSSValueTop:
+            state.style()->setTransformOriginY(Length(0, Percent));
+            break;
+        case CSSValueBottom:
+            state.style()->setTransformOriginY(Length(100, Percent));
+            break;
+        case CSSValueCenter:
+            state.style()->setTransformOriginY(Length(50, Percent));
+            break;
+        default:
+            ASSERT_NOT_REACHED();
+        }
+    } else {
+        state.style()->setTransformOriginY(StyleBuilderConverter::convertLength(state, primitiveValue));
+    }
+
+    primitiveValue = toCSSPrimitiveValue(list->item(2));
+    state.style()->setTransformOriginZ(StyleBuilderConverter::convertComputedLength<float>(state, primitiveValue));
+}
+
 void StyleBuilderFunctions::applyValueCSSPropertyVerticalAlign(StyleResolverState& state, CSSValue* value)
 {
     if (!value->isPrimitiveValue())
         return;
 
     CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
 
     if (primitiveValue->getValueID())
         return state.style()->setVerticalAlign(*primitiveValue);
 
@@ skipping 1142 matching lines @@
             state.style()->setAlignItems(*pairValue->first());
             state.style()->setAlignItemsOverflowAlignment(*pairValue->second());
         } else {
             state.style()->setAlignItems(*primitiveValue);
         }
         return;
     }
 
     // FIXME: crbug.com/154772 Unimplemented css-transforms properties
     case CSSPropertyPerspectiveOrigin:
-    case CSSPropertyTransformOrigin:
         return;
     // These properties are aliased and we already applied the property on the prefixed version.
     case CSSPropertyAnimationDelay:
     case CSSPropertyAnimationDirection:
     case CSSPropertyAnimationDuration:
     case CSSPropertyAnimationFillMode:
     case CSSPropertyAnimationIterationCount:
     case CSSPropertyAnimationName:
     case CSSPropertyAnimationPlayState:
     case CSSPropertyAnimationTimingFunction:
@@ skipping 202 matching lines @@
     case CSSPropertyTextUnderlinePosition:
     case CSSPropertyWebkitTextEmphasisColor:
     case CSSPropertyWebkitTextEmphasisPosition:
     case CSSPropertyWebkitTextEmphasisStyle:
     case CSSPropertyWebkitTextFillColor:
     case CSSPropertyWebkitTextSecurity:
     case CSSPropertyWebkitTextStrokeColor:
     case CSSPropertyWebkitTransformOriginX:
     case CSSPropertyWebkitTransformOriginY:
     case CSSPropertyWebkitTransformOriginZ:
+    case CSSPropertyTransformOrigin:
     case CSSPropertyTransformStyle:
     case CSSPropertyWebkitTransformStyle:
     case CSSPropertyWebkitTransitionDelay:
     case CSSPropertyWebkitTransitionDuration:
     case CSSPropertyWebkitTransitionProperty:
     case CSSPropertyWebkitTransitionTimingFunction:
     case CSSPropertyWebkitUserDrag:
     case CSSPropertyWebkitUserModify:
     case CSSPropertyWebkitUserSelect:
     case CSSPropertyWebkitClipPath:
@@ skipping 203 matching lines @@
         break;
     }
     case CSSPropertyEnableBackground:
         // Silently ignoring this property for now
         // http://bugs.webkit.org/show_bug.cgi?id=6022
         break;
     }
 }
 
 } // namespace WebCore