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/*
* Copyright (C) 2006, 2007, 2012 Apple Inc. All rights reserved.
*
* 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_file_upload_control.h"
#include <math.h>
#include "third_party/blink/renderer/core/dom/shadow_root.h"
#include "third_party/blink/renderer/core/fileapi/file_list.h"
#include "third_party/blink/renderer/core/html/forms/html_input_element.h"
#include "third_party/blink/renderer/core/input_type_names.h"
#include "third_party/blink/renderer/core/layout/layout_theme.h"
#include "third_party/blink/renderer/core/paint/file_upload_control_painter.h"
#include "third_party/blink/renderer/platform/fonts/font.h"
#include "third_party/blink/renderer/platform/fonts/string_truncator.h"
#include "third_party/blink/renderer/platform/text/text_run.h"
namespace blink {
const int kButtonShadowHeight = 2;
LayoutFileUploadControl::LayoutFileUploadControl(Element* input)
: LayoutBlockFlow(input) {
DCHECK_EQ(To<HTMLInputElement>(input)->type(), input_type_names::kFile);
}
LayoutFileUploadControl::~LayoutFileUploadControl() = default;
bool LayoutFileUploadControl::IsChildAllowed(LayoutObject* child,
const ComputedStyle& style) const {
const Node* child_node = child->GetNode();
// Reject shadow nodes other than UploadButton.
if (child_node && child_node->OwnerShadowHost() == GetNode() &&
child_node != UploadButton())
return false;
return LayoutBlockFlow::IsChildAllowed(child, style);
}
int LayoutFileUploadControl::MaxFilenameWidth() const {
int upload_button_width =
(UploadButton() && UploadButton()->GetLayoutBox())
? UploadButton()->GetLayoutBox()->PixelSnappedWidth()
: 0;
return std::max(0, PhysicalContentBoxRect().PixelSnappedWidth() -
upload_button_width - kAfterButtonSpacing);
}
void LayoutFileUploadControl::PaintObject(
const PaintInfo& paint_info,
const PhysicalOffset& paint_offset) const {
FileUploadControlPainter(*this).PaintObject(paint_info, paint_offset);
}
HTMLInputElement* LayoutFileUploadControl::UploadButton() const {
return To<HTMLInputElement>(GetNode())->UploadButton();
}
String LayoutFileUploadControl::FileTextValue() const {
int width = MaxFilenameWidth();
if (width <= 0)
return String();
auto* input = To<HTMLInputElement>(GetNode());
DCHECK(input->files());
String text = input->FileStatusText();
if (input->files()->length() >= 2)
return StringTruncator::RightTruncate(text, width, StyleRef().GetFont());
return StringTruncator::CenterTruncate(text, width, StyleRef().GetFont());
}
// Override to allow effective clip rect to be bigger than the padding box
// because of kButtonShadowHeight.
PhysicalRect LayoutFileUploadControl::OverflowClipRect(
const PhysicalOffset& additional_offset,
OverlayScrollbarClipBehavior) const {
PhysicalRect rect(additional_offset, Size());
rect.Expand(BorderInsets());
rect.offset.top -= LayoutUnit(kButtonShadowHeight);
rect.size.height += LayoutUnit(kButtonShadowHeight) * 2;
return rect;
}
} // namespace blink
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