cxfa_caption.cpp

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// Copyright 2017 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
#include "xfa/fxfa/parser/cxfa_caption.h"
 
#include "fxjs/xfa/cjx_node.h"
#include "xfa/fxfa/parser/cxfa_document.h"
#include "xfa/fxfa/parser/cxfa_font.h"
#include "xfa/fxfa/parser/cxfa_margin.h"
#include "xfa/fxfa/parser/cxfa_measurement.h"
#include "xfa/fxfa/parser/cxfa_value.h"
 
namespace {
 
const CXFA_Node::PropertyData kCaptionPropertyData[] = {
    {XFA_Element::Margin, 1, {}}, {XFA_Element::Para, 1, {}},
    {XFA_Element::Font, 1, {}},   {XFA_Element::Value, 1, {}},
    {XFA_Element::Extras, 1, {}},
};
 
const CXFA_Node::AttributeData kCaptionAttributeData[] = {
    {XFA_Attribute::Id, XFA_AttributeType::CData, nullptr},
    {XFA_Attribute::Use, XFA_AttributeType::CData, nullptr},
    {XFA_Attribute::Reserve, XFA_AttributeType::Measure, (void*)L"-1un"},
    {XFA_Attribute::Presence, XFA_AttributeType::Enum,
     (void*)XFA_AttributeValue::Visible},
    {XFA_Attribute::Usehref, XFA_AttributeType::CData, nullptr},
    {XFA_Attribute::Placement, XFA_AttributeType::Enum,
     (void*)XFA_AttributeValue::Left},
};
 
}  // namespace
 
CXFA_Caption::CXFA_Caption(CXFA_Document* doc, XFA_PacketType packet)
    : CXFA_Node(doc,
                packet,
                {XFA_XDPPACKET::kTemplate, XFA_XDPPACKET::kForm},
                XFA_ObjectType::Node,
                XFA_Element::Caption,
                kCaptionPropertyData,
                kCaptionAttributeData,
                cppgc::MakeGarbageCollected<CJX_Node>(
                    doc->GetHeap()->GetAllocationHandle(),
                    this)) {}
 
CXFA_Caption::~CXFA_Caption() = default;
 
bool CXFA_Caption::IsVisible() {
  auto value = JSObject()->TryEnum(XFA_Attribute::Presence, true);
  return !value.has_value() || value.value() == XFA_AttributeValue::Visible;
}
 
bool CXFA_Caption::IsHidden() {
  auto value = JSObject()->TryEnum(XFA_Attribute::Presence, true);
  return !value.has_value() || value.value() == XFA_AttributeValue::Hidden;
}
 
XFA_AttributeValue CXFA_Caption::GetPlacementType() {
  auto value = JSObject()->TryEnum(XFA_Attribute::Placement, true);
  return value.value_or(XFA_AttributeValue::Left);
}
 
float CXFA_Caption::GetReserve() const {
  return JSObject()->GetMeasureInUnit(XFA_Attribute::Reserve, XFA_Unit::Pt);
}
 
CXFA_Margin* CXFA_Caption::GetMarginIfExists() {
  return GetChild<CXFA_Margin>(0, XFA_Element::Margin, false);
}
 
CXFA_Font* CXFA_Caption::GetFontIfExists() {
  return GetChild<CXFA_Font>(0, XFA_Element::Font, false);
}
 
CXFA_Value* CXFA_Caption::GetValueIfExists() {
  return GetChild<CXFA_Value>(0, XFA_Element::Value, false);
}