LayoutBox::mapContentsRectToVisibleRectInBorderBoxSpace()

third_party/WebKit/Source/core/layout/LayoutObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 863 matching lines @@
         o->m_bitfields.setPreferredLogicalWidthsDirty(true);
         if (o->style()->hasOutOfFlowPosition()) {
             // A positioned object has no effect on the min/max width of its containing block ever.
             // We can optimize this case and not go up any further.
             break;
         }
         o = container;
     }
 }
 
-LayoutObject* LayoutObject::containerForAbsolutePosition(const LayoutBoxModelObject* paintInvalidationContainer, bool* paintInvalidationContainerSkipped) const
+LayoutObject* LayoutObject::containerForAbsolutePosition(const LayoutBoxModelObject* ancestor, bool* ancestorSkipped) const
 {
     // We technically just want our containing block, but
     // we may not have one if we're part of an uninstalled
     // subtree. We'll climb as high as we can though.
     for (LayoutObject* object = parent(); object; object = object->parent()) {
         if (object->canContainAbsolutePositionObjects())
             return object;
 
-        if (paintInvalidationContainerSkipped && object == paintInvalidationContainer)
-            *paintInvalidationContainerSkipped = true;
+        if (ancestorSkipped && object == ancestor)
+            *ancestorSkipped = true;
     }
     return nullptr;
 }
 
-LayoutBlock* LayoutObject::containerForFixedPosition(const LayoutBoxModelObject* paintInvalidationContainer, bool* paintInvalidationContainerSkipped) const
+LayoutBlock* LayoutObject::containerForFixedPosition(const LayoutBoxModelObject* ancestor, bool* ancestorSkipped) const
 {
-    ASSERT(!paintInvalidationContainerSkipped || !*paintInvalidationContainerSkipped);
+    ASSERT(!ancestorSkipped || !*ancestorSkipped);
     ASSERT(!isText());
 
-    LayoutObject* ancestor = parent();
-    for (; ancestor && !ancestor->canContainFixedPositionObjects(); ancestor = ancestor->parent()) {
-        if (paintInvalidationContainerSkipped && ancestor == paintInvalidationContainer)
-            *paintInvalidationContainerSkipped = true;
+    LayoutObject* object = parent();
+    for (; object && !object->canContainFixedPositionObjects(); object = object->parent()) {
+        if (ancestorSkipped && object == ancestor)
+            *ancestorSkipped = true;
     }
 
-    ASSERT(!ancestor || !ancestor->isAnonymousBlock());
-    return toLayoutBlock(ancestor);
+    ASSERT(!object || !object->isAnonymousBlock());
+    return toLayoutBlock(object);
 }
 
 LayoutBlock* LayoutObject::containingBlockForAbsolutePosition() const
 {
     LayoutObject* o = containerForAbsolutePosition();
 
     // For relpositioned inlines, we return the nearest non-anonymous enclosing block. We don't try
     // to return the inline itself.  This allows us to avoid having a positioned objects
     // list in all LayoutInlines and lets us return a strongly-typed LayoutBlock* result
     // from this method.  The container() method can actually be used to obtain the
@@ skipping 712 matching lines @@
 
 LayoutRect LayoutObject::localOverflowRectForPaintInvalidation() const
 {
     ASSERT_NOT_REACHED();
     return LayoutRect();
 }
 
 bool LayoutObject::mapToVisibleRectInAncestorSpace(const LayoutBoxModelObject* ancestor, LayoutRect& rect, VisibleRectFlags visibleRectFlags) const
 {
     // For any layout object that doesn't override this method (the main example is LayoutText),
-    // the rect is assumed to be in the coordinate space of the object's parent.
+    // the rect is assumed to be in the contents coordinate space of the object's parent.
 
     if (ancestor == this)
         return true;
 
     if (LayoutObject* parent = this->parent()) {
-        if (parent->hasOverflowClip()) {
+        if (parent->isBox()) {
             LayoutBox* parentBox = toLayoutBox(parent);
-            parentBox->mapScrollingContentsRectToBoxSpace(rect);
-            if (parent != ancestor && !parentBox->applyOverflowClip(rect, visibleRectFlags))
+            if (!parentBox->mapContentsRectToVisibleRectInBorderBoxSpace(rect, visibleRectFlags))
                 return false;
+
+            if (parentBox == ancestor || parentBox->isWritingModeRoot())
+                parentBox->flipForWritingMode(rect);
         }
 
         return parent->mapToVisibleRectInAncestorSpace(ancestor, rect, visibleRectFlags);
     }
     return true;
 }
 
 void LayoutObject::dirtyLinesFromChangedChild(LayoutObject*)
 {
 }
@@ skipping 916 matching lines @@
 
     if (layoutObject->document().settings() && layoutObject->document().settings()->shouldRespectImageOrientation())
         return RespectImageOrientation;
 
     if (layoutObject->style() && layoutObject->style()->respectImageOrientation() == RespectImageOrientation)
         return RespectImageOrientation;
 
     return DoNotRespectImageOrientation;
 }
 
-LayoutObject* LayoutObject::container(const LayoutBoxModelObject* paintInvalidationContainer, bool* paintInvalidationContainerSkipped) const
+LayoutObject* LayoutObject::container(const LayoutBoxModelObject* ancestor, bool* ancestorSkipped) const
 {
-    if (paintInvalidationContainerSkipped)
-        *paintInvalidationContainerSkipped = false;
+    if (ancestorSkipped)
+        *ancestorSkipped = false;
 
     LayoutObject* o = parent();
 
     if (isTextOrSVGChild())
         return o;
 
     EPosition pos = m_style->position();
     if (pos == FixedPosition)
-        return containerForFixedPosition(paintInvalidationContainer, paintInvalidationContainerSkipped);
+        return containerForFixedPosition(ancestor, ancestorSkipped);
 
     if (pos == AbsolutePosition)
-        return containerForAbsolutePosition(paintInvalidationContainer, paintInvalidationContainerSkipped);
+        return containerForAbsolutePosition(ancestor, ancestorSkipped);
 
     if (isColumnSpanAll()) {
         LayoutObject* multicolContainer = spannerPlaceholder()->container();
-        if (paintInvalidationContainerSkipped && paintInvalidationContainer) {
+        if (ancestorSkipped && ancestor) {
             // We jumped directly from the spanner to the multicol container. Need to check if
             // we skipped |paintInvalidationContainer| on the way.
             for (LayoutObject* walker = parent(); walker && walker != multicolContainer; walker = walker->parent()) {
-                if (walker == paintInvalidationContainer) {
-                    *paintInvalidationContainerSkipped = true;
+                if (walker == ancestor) {
+                    *ancestorSkipped = true;
                     break;
                 }
             }
         }
         return multicolContainer;
     }
 
     return o;
 }
 
@@ skipping 1088 matching lines @@
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     } else {
         fprintf(stderr, "Cannot showLayoutTree. Root is (nil)\n");
     }
 }
 
 #endif