| /* |
| * Copyright 2015 Google Inc. All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef COBALT_LAYOUT_ANONYMOUS_BLOCK_BOX_H_ |
| #define COBALT_LAYOUT_ANONYMOUS_BLOCK_BOX_H_ |
| |
| #include <vector> |
| |
| #include "cobalt/dom/font_list.h" |
| #include "cobalt/layout/base_direction.h" |
| #include "cobalt/layout/block_container_box.h" |
| #include "cobalt/layout/box.h" |
| |
| namespace cobalt { |
| namespace layout { |
| |
| // A block-level block container box that establish an inline formatting |
| // context. Anonymous block boxes are created to enclose inline-level |
| // children in a block formatting context. |
| // https://www.w3.org/TR/CSS21/visuren.html#anonymous-block-level |
| class AnonymousBlockBox : public BlockContainerBox { |
| public: |
| AnonymousBlockBox(const scoped_refptr<cssom::CSSComputedStyleDeclaration>& |
| css_computed_style_declaration, |
| BaseDirection base_direction, |
| UsedStyleProvider* used_style_provider, |
| LayoutStatTracker* layout_stat_tracker); |
| |
| // From |Box|. |
| Level GetLevel() const OVERRIDE; |
| AnonymousBlockBox* AsAnonymousBlockBox() OVERRIDE; |
| |
| void SplitBidiLevelRuns() OVERRIDE; |
| |
| bool HasTrailingLineBreak() const OVERRIDE; |
| |
| void RenderAndAnimateContent(render_tree::CompositionNode::Builder* |
| border_node_builder) const OVERRIDE; |
| |
| // From |ContainerBox|. |
| |
| // This method should never be called, instead all children have to be added |
| // through |AddInlineLevelChild|. |
| bool TryAddChild(const scoped_refptr<Box>& child_box) OVERRIDE; |
| |
| // Rest of the public methods. |
| |
| // An anonymous block box may only contain inline-level children. |
| void AddInlineLevelChild(const scoped_refptr<Box>& child_box); |
| |
| protected: |
| // From |Box|. |
| #ifdef COBALT_BOX_DUMP_ENABLED |
| void DumpClassName(std::ostream* stream) const OVERRIDE; |
| #endif // COBALT_BOX_DUMP_ENABLED |
| |
| // From |BlockContainerBox|. |
| scoped_ptr<FormattingContext> UpdateRectOfInFlowChildBoxes( |
| const LayoutParams& child_layout_params) OVERRIDE; |
| |
| private: |
| bool AreEllipsesEnabled() const; |
| |
| typedef std::vector<math::Vector2dF> EllipsesCoordinates; |
| |
| // A font used for text width and line height calculations. |
| const scoped_refptr<dom::FontList> used_font_; |
| |
| // The XY coordinates of all ellipses placed while laying out the anonymous |
| // block box within an inline formatting context. |
| EllipsesCoordinates ellipses_coordinates_; |
| }; |
| |
| } // namespace layout |
| } // namespace cobalt |
| |
| #endif // COBALT_LAYOUT_ANONYMOUS_BLOCK_BOX_H_ |