Implement FORM_GetFocusedText() API.

If there is a focused form field, get its text.

BUG=chromium:753216

Change-Id: I05294f14d05c1c86769055f6c9eaf9177787d9fd
Reviewed-on: https://pdfium-review.googlesource.com/12072
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 17 insertions, 8 deletions

diff --git a/xfa/fxfa/cxfa_ffcombobox.cpp b/xfa/fxfa/cxfa_ffcombobox.cpp
index 268d1da2b4..e4de85c517 100644
--- a/xfa/fxfa/cxfa_ffcombobox.cpp
+++ b/xfa/fxfa/cxfa_ffcombobox.cpp
@@ -116,14 +116,7 @@ bool CXFA_FFComboBox::CommitData() {
 }
 
 bool CXFA_FFComboBox::IsDataChanged() {
-  auto* pFWLcombobox = ToComboBox(m_pNormalWidget.get());
-  WideString wsText = pFWLcombobox->GetEditText();
-  int32_t iCursel = pFWLcombobox->GetCurSel();
-  if (iCursel >= 0) {
-    WideString wsSel = pFWLcombobox->GetTextByIndex(iCursel);
-    if (wsSel == wsText)
-      wsText = m_pNode->GetChoiceListItem(iCursel, true).value_or(L"");
-  }
+  WideString wsText = GetCurrentText();
   if (m_pNode->GetValue(XFA_VALUEPICTURE_Raw) == wsText)
     return false;
 
@@ -138,6 +131,18 @@ void CXFA_FFComboBox::FWLEventSelChange(CXFA_EventParam* pParam) {
   m_pNode->ProcessEvent(GetDocView(), XFA_AttributeEnum::Change, pParam);
 }
 
+WideString CXFA_FFComboBox::GetCurrentText() const {
+  auto* pFWLcombobox = ToComboBox(m_pNormalWidget.get());
+  WideString wsText = pFWLcombobox->GetEditText();
+  int32_t iCursel = pFWLcombobox->GetCurSel();
+  if (iCursel >= 0) {
+    WideString wsSel = pFWLcombobox->GetTextByIndex(iCursel);
+    if (wsSel == wsText)
+      wsText = m_pNode->GetChoiceListItem(iCursel, true).value_or(L"");
+  }
+  return wsText;
+}
+
 uint32_t CXFA_FFComboBox::GetAlignment() {
   CXFA_Para* para = m_pNode->GetParaIfExists();
   if (!para)
@@ -259,6 +264,10 @@ void CXFA_FFComboBox::DeSelect() {
   ToComboBox(m_pNormalWidget.get())->EditDeSelect();
 }
 
+WideString CXFA_FFComboBox::GetText() {
+  return GetCurrentText();
+}
+
 FormFieldType CXFA_FFComboBox::GetFormFieldType() {
   return FormFieldType::kXFA_ComboBox;
 }