| /** |
| * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
| * (C) 2008 Torch Mobile Inc. All rights reserved. |
| * (http://www.torchmobile.com/) |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "third_party/blink/renderer/core/layout/layout_text_control_multi_line.h" |
| |
| #include "third_party/blink/renderer/core/html/forms/html_text_area_element.h" |
| #include "third_party/blink/renderer/core/layout/hit_test_result.h" |
| #include "third_party/blink/renderer/core/layout/layout_theme.h" |
| |
| namespace blink { |
| |
| LayoutTextControlMultiLine::LayoutTextControlMultiLine( |
| HTMLTextAreaElement* element) |
| : LayoutTextControl(element) { |
| DCHECK(element); |
| } |
| |
| LayoutTextControlMultiLine::~LayoutTextControlMultiLine() = default; |
| |
| bool LayoutTextControlMultiLine::NodeAtPoint( |
| HitTestResult& result, |
| const HitTestLocation& hit_test_location, |
| const PhysicalOffset& accumulated_offset, |
| HitTestAction hit_test_action) { |
| if (!LayoutTextControl::NodeAtPoint(result, hit_test_location, |
| accumulated_offset, hit_test_action)) |
| return false; |
| |
| const LayoutObject* stop_node = result.GetHitTestRequest().GetStopNode(); |
| if (stop_node && stop_node->NodeForHitTest() == result.InnerNode()) |
| return true; |
| |
| if (result.InnerNode() == GetNode() || |
| result.InnerNode() == InnerEditorElement()) |
| HitInnerEditorElement(result, hit_test_location, accumulated_offset); |
| |
| return true; |
| } |
| |
| LayoutUnit LayoutTextControlMultiLine::PreferredContentLogicalWidth( |
| float char_width) const { |
| int factor = To<HTMLTextAreaElement>(GetNode())->cols(); |
| return static_cast<LayoutUnit>(ceilf(char_width * factor)) + |
| ScrollbarThickness(); |
| } |
| |
| LayoutUnit LayoutTextControlMultiLine::ComputeControlLogicalHeight( |
| LayoutUnit line_height, |
| LayoutUnit non_content_height) const { |
| return line_height * To<HTMLTextAreaElement>(GetNode())->rows() + |
| non_content_height; |
| } |
| |
| LayoutUnit LayoutTextControlMultiLine::BaselinePosition( |
| FontBaseline baseline_type, |
| bool first_line, |
| LineDirectionMode direction, |
| LinePositionMode line_position_mode) const { |
| return LayoutBox::BaselinePosition(baseline_type, first_line, direction, |
| line_position_mode); |
| } |
| |
| LayoutObject* LayoutTextControlMultiLine::LayoutSpecialExcludedChild( |
| bool relayout_children, |
| SubtreeLayoutScope& layout_scope) { |
| LayoutObject* placeholder_layout_object = |
| LayoutTextControl::LayoutSpecialExcludedChild(relayout_children, |
| layout_scope); |
| if (!placeholder_layout_object) |
| return nullptr; |
| if (!placeholder_layout_object->IsBox()) |
| return placeholder_layout_object; |
| LayoutBox* placeholder_box = ToLayoutBox(placeholder_layout_object); |
| placeholder_box->LayoutIfNeeded(); |
| placeholder_box->SetX(BorderLeft() + PaddingLeft()); |
| placeholder_box->SetY(BorderTop() + PaddingTop()); |
| return placeholder_layout_object; |
| } |
| |
| LayoutUnit LayoutTextControlMultiLine::ScrollWidth() const { |
| // If in preview state, fake the scroll width to prevent that any information |
| // about the suggested content can be derived from the size. |
| if (!GetTextControlElement()->SuggestedValue().IsEmpty()) |
| return ClientWidth(); |
| return LayoutTextControl::ScrollWidth(); |
| } |
| |
| LayoutUnit LayoutTextControlMultiLine::ScrollHeight() const { |
| // If in preview state, fake the scroll height to prevent that any information |
| // about the suggested content can be derived from the size. |
| if (!GetTextControlElement()->SuggestedValue().IsEmpty()) |
| return ClientHeight(); |
| return LayoutTextControl::ScrollHeight(); |
| } |
| |
| } // namespace blink |