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* Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2008 Torch Mobile Inc. All rights reserved.
* (
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
* 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
* 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/html/forms/html_input_element.h"
#include "third_party/blink/renderer/core/layout/layout_text_control.h"
namespace blink {
class HTMLInputElement;
class LayoutTextControlSingleLine : public LayoutTextControl {
~LayoutTextControlSingleLine() override;
void CapsLockStateMayHaveChanged();
bool ShouldDrawCapsLockIndicator() const {
return should_draw_caps_lock_indicator_;
Element* ContainerElement() const;
Element* EditingViewPortElement() const;
HTMLInputElement* InputElement() const;
bool HasControlClip() const final;
LayoutRect ControlClipRect(const LayoutPoint&) const final;
bool IsOfType(LayoutObjectType type) const override {
return type == kLayoutObjectTextField || LayoutTextControl::IsOfType(type);
void Paint(const PaintInfo&) const override;
void UpdateLayout() override;
bool NodeAtPoint(HitTestResult&,
const HitTestLocation& location_in_container,
const LayoutPoint& accumulated_offset,
HitTestAction) final;
void Autoscroll(const IntPoint&) final;
// Subclassed to forward to our inner div.
LayoutUnit ScrollLeft() const final;
LayoutUnit ScrollTop() const final;
LayoutUnit ScrollWidth() const final;
LayoutUnit ScrollHeight() const final;
void SetScrollLeft(LayoutUnit) final;
void SetScrollTop(LayoutUnit) final;
int TextBlockWidth() const;
float GetAvgCharWidth(const AtomicString& family) const final;
LayoutUnit PreferredContentLogicalWidth(float char_width) const final;
LayoutUnit ComputeControlLogicalHeight(
LayoutUnit line_height,
LayoutUnit non_content_height) const override;
void ComputeVisualOverflow(const LayoutRect&, bool recompute_floats) override;
// If the INPUT content height is smaller than the font height, the
// inner-editor element overflows the INPUT box intentionally, however it
// shouldn't affect outside of the INPUT box. So we ignore child overflow.
void AddLayoutOverflowFromChildren() final {}
bool AllowsOverflowClip() const override { return false; }
HTMLElement* InnerSpinButtonElement() const;
bool should_draw_caps_lock_indicator_;
DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutTextControlSingleLine, IsTextField());
// ----------------------------
class LayoutTextControlInnerEditor : public LayoutBlockFlow {
LayoutTextControlInnerEditor(Element* element) : LayoutBlockFlow(element) {}
bool ShouldIgnoreOverflowPropertyForInlineBlockBaseline() const override {
return true;
bool IsIntrinsicallyScrollable(
ScrollbarOrientation orientation) const override {
return orientation == kHorizontalScrollbar;
bool ScrollsOverflowX() const override { return HasOverflowClip(); }
bool ScrollsOverflowY() const override { return false; }
bool HasLineIfEmpty() const override { return true; }
} // namespace blink