Merge the CFWL_*Imp classes into the IFWL_* classes.

xfa/fwl/core/ifwl_datetimeedit.cpp

Index: xfa/fwl/core/ifwl_datetimeedit.cpp
diff --git a/xfa/fwl/core/ifwl_datetimeedit.cpp b/xfa/fwl/core/ifwl_datetimeedit.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..a0f473b21e44f3e1f41d30611c0121f3ffc37ddc
--- /dev/null
+++ b/xfa/fwl/core/ifwl_datetimeedit.cpp
@@ -0,0 +1,79 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// 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/fwl/core/ifwl_datetimeedit.h"
+
+#include "xfa/fwl/core/cfwl_widgetmgr.h"
+#include "xfa/fwl/core/ifwl_datetimepicker.h"
+
+// static
+IFWL_DateTimeEdit* IFWL_DateTimeEdit::Create(
+    const CFWL_WidgetImpProperties& properties,
+    IFWL_Widget* pOuter) {
+  return new IFWL_DateTimeEdit(properties, pOuter);
+}
+
+IFWL_DateTimeEdit::IFWL_DateTimeEdit(const CFWL_WidgetImpProperties& properties,
+                                     IFWL_Widget* pOuter)
+    : IFWL_Edit(properties, pOuter) {}
+
+FWL_Error IFWL_DateTimeEdit::Initialize() {
+  m_pDelegate = new CFWL_DateTimeEditImpDelegate(this);
+  if (IFWL_Edit::Initialize() != FWL_Error::Succeeded)
+    return FWL_Error::Indefinite;
+  return FWL_Error::Succeeded;
+}
+
+FWL_Error IFWL_DateTimeEdit::Finalize() {
+  delete m_pDelegate;
+  m_pDelegate = nullptr;
+  return IFWL_Edit::Finalize();
+}
+
+CFWL_DateTimeEditImpDelegate::CFWL_DateTimeEditImpDelegate(
+    IFWL_DateTimeEdit* pOwner)
+    : CFWL_EditImpDelegate(pOwner), m_pOwner(pOwner) {}
+
+void CFWL_DateTimeEditImpDelegate::OnProcessMessage(CFWL_Message* pMessage) {
+  if (m_pOwner->m_pWidgetMgr->IsFormDisabled()) {
+    DisForm_OnProcessMessage(pMessage);
+    return;
+  }
+
+  CFWL_MessageType dwHashCode = pMessage->GetClassID();
+  if (dwHashCode == CFWL_MessageType::SetFocus ||
+      dwHashCode == CFWL_MessageType::KillFocus) {
+    IFWL_Widget* pOuter = m_pOwner->GetOuter();
+    IFWL_WidgetDelegate* pDelegate = pOuter->SetDelegate(nullptr);
+    pDelegate->OnProcessMessage(pMessage);
+  }
+}
+
+void CFWL_DateTimeEditImpDelegate::DisForm_OnProcessMessage(
+    CFWL_Message* pMessage) {
+  CFWL_MessageType dwHashCode = pMessage->GetClassID();
+  if (m_pOwner->m_pWidgetMgr->IsFormDisabled()) {
+    if (dwHashCode == CFWL_MessageType::Mouse) {
+      CFWL_MsgMouse* pMouse = static_cast<CFWL_MsgMouse*>(pMessage);
+      if (pMouse->m_dwCmd == FWL_MouseCommand::LeftButtonDown ||
+          pMouse->m_dwCmd == FWL_MouseCommand::RightButtonDown) {
+        if ((m_pOwner->m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0) {
+          m_pOwner->m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused;
+        }
+        IFWL_DateTimePicker* pDateTime =
+            static_cast<IFWL_DateTimePicker*>(m_pOwner->m_pOuter);
+        if (pDateTime->IsMonthCalendarShowed()) {
+          CFX_RectF rtInvalidate;
+          pDateTime->GetWidgetRect(rtInvalidate);
+          pDateTime->ShowMonthCalendar(FALSE);
+          rtInvalidate.Offset(-rtInvalidate.left, -rtInvalidate.top);
+          pDateTime->Repaint(&rtInvalidate);
+        }
+      }
+    }
+  }
+  CFWL_EditImpDelegate::OnProcessMessage(pMessage);
+}