156 lines
4.9 KiB
C++
156 lines
4.9 KiB
C++
// Copyright 2014 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "xfa/fxfa/cxfa_textprovider.h"
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#include "core/fxcrt/xml/cfx_xmlelement.h"
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#include "core/fxcrt/xml/cfx_xmlnode.h"
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#include "fxjs/xfa/cfxjse_engine.h"
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#include "fxjs/xfa/cfxjse_value.h"
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#include "fxjs/xfa/cjx_object.h"
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#include "third_party/base/check.h"
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#include "xfa/fde/cfde_textout.h"
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#include "xfa/fxfa/cxfa_eventparam.h"
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#include "xfa/fxfa/cxfa_ffapp.h"
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#include "xfa/fxfa/cxfa_ffcheckbutton.h"
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#include "xfa/fxfa/cxfa_ffdoc.h"
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#include "xfa/fxfa/cxfa_ffdocview.h"
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#include "xfa/fxfa/cxfa_fffield.h"
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#include "xfa/fxfa/cxfa_ffpageview.h"
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#include "xfa/fxfa/cxfa_ffwidget.h"
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#include "xfa/fxfa/cxfa_fontmgr.h"
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#include "xfa/fxfa/cxfa_fwladapterwidgetmgr.h"
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#include "xfa/fxfa/parser/cxfa_caption.h"
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#include "xfa/fxfa/parser/cxfa_font.h"
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#include "xfa/fxfa/parser/cxfa_items.h"
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#include "xfa/fxfa/parser/cxfa_localevalue.h"
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#include "xfa/fxfa/parser/cxfa_node.h"
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#include "xfa/fxfa/parser/cxfa_para.h"
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#include "xfa/fxfa/parser/cxfa_value.h"
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#include "xfa/fxfa/parser/xfa_utils.h"
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CXFA_TextProvider::CXFA_TextProvider(CXFA_Node* pNode, Type eType)
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: m_pNode(pNode), m_eType(eType) {
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DCHECK(m_pNode);
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}
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CXFA_TextProvider::~CXFA_TextProvider() = default;
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void CXFA_TextProvider::Trace(cppgc::Visitor* visitor) const {
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visitor->Trace(m_pNode);
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}
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CXFA_Node* CXFA_TextProvider::GetTextNode(bool* bRichText) {
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*bRichText = false;
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if (m_eType == Type::kText) {
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CXFA_Value* pValueNode =
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m_pNode->GetChild<CXFA_Value>(0, XFA_Element::Value, false);
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if (!pValueNode)
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return nullptr;
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CXFA_Node* pChildNode = pValueNode->GetFirstChild();
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if (pChildNode && pChildNode->GetElementType() == XFA_Element::ExData) {
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absl::optional<WideString> contentType =
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pChildNode->JSObject()->TryAttribute(XFA_Attribute::ContentType,
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false);
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if (contentType.has_value() &&
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contentType.value().EqualsASCII("text/html")) {
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*bRichText = true;
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}
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}
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return pChildNode;
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}
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if (m_eType == Type::kCaption) {
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CXFA_Caption* pCaptionNode =
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m_pNode->GetChild<CXFA_Caption>(0, XFA_Element::Caption, false);
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if (!pCaptionNode)
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return nullptr;
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CXFA_Value* pValueNode =
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pCaptionNode->GetChild<CXFA_Value>(0, XFA_Element::Value, false);
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if (!pValueNode)
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return nullptr;
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CXFA_Node* pChildNode = pValueNode->GetFirstChild();
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if (pChildNode && pChildNode->GetElementType() == XFA_Element::ExData) {
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absl::optional<WideString> contentType =
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pChildNode->JSObject()->TryAttribute(XFA_Attribute::ContentType,
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false);
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if (contentType.has_value() &&
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contentType.value().EqualsASCII("text/html")) {
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*bRichText = true;
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}
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}
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return pChildNode;
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}
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CXFA_Items* pItemNode =
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m_pNode->GetChild<CXFA_Items>(0, XFA_Element::Items, false);
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if (!pItemNode)
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return nullptr;
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CXFA_Node* pNode = pItemNode->GetFirstChild();
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while (pNode) {
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WideString wsName = pNode->JSObject()->GetCData(XFA_Attribute::Name);
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if (m_eType == Type::kRollover && wsName.EqualsASCII("rollover")) {
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return pNode;
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}
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if (m_eType == Type::kDown && wsName.EqualsASCII("down"))
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return pNode;
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pNode = pNode->GetNextSibling();
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}
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return nullptr;
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}
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CXFA_Para* CXFA_TextProvider::GetParaIfExists() {
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if (m_eType == Type::kText)
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return m_pNode->GetParaIfExists();
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CXFA_Caption* pNode =
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m_pNode->GetChild<CXFA_Caption>(0, XFA_Element::Caption, false);
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return pNode->GetChild<CXFA_Para>(0, XFA_Element::Para, false);
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}
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CXFA_Font* CXFA_TextProvider::GetFontIfExists() {
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if (m_eType == Type::kText)
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return m_pNode->GetFontIfExists();
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CXFA_Caption* pNode =
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m_pNode->GetChild<CXFA_Caption>(0, XFA_Element::Caption, false);
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CXFA_Font* font = pNode->GetChild<CXFA_Font>(0, XFA_Element::Font, false);
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return font ? font : m_pNode->GetFontIfExists();
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}
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bool CXFA_TextProvider::IsCheckButtonAndAutoWidth() const {
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if (m_pNode->GetFFWidgetType() != XFA_FFWidgetType::kCheckButton)
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return false;
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return !m_pNode->TryWidth().has_value();
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}
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absl::optional<WideString> CXFA_TextProvider::GetEmbeddedObj(
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const WideString& wsAttr) const {
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if (m_eType != Type::kText)
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return absl::nullopt;
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CXFA_Node* pParent = m_pNode->GetParent();
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CXFA_Document* pDocument = m_pNode->GetDocument();
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CXFA_Node* pIDNode = nullptr;
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if (pParent)
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pIDNode = pDocument->GetNodeByID(pParent, wsAttr.AsStringView());
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if (!pIDNode) {
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pIDNode = pDocument->GetNodeByID(
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ToNode(pDocument->GetXFAObject(XFA_HASHCODE_Form)),
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wsAttr.AsStringView());
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}
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if (!pIDNode || !pIDNode->IsWidgetReady())
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return absl::nullopt;
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return pIDNode->GetValue(XFA_ValuePicture::kDisplay);
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}
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