Cleanup WidgetMgr ownership

The CXFA_FFApp can get the FWLWidgetMgr from the CFWL_App and does not
need to store a copy. This removes the need to pass the delegate into
the GetFWLAdapterWidgetMgr() method and we can set the capabilities
directy.

Change-Id: If4794d07fa0fb5dd32b816a21f04e6d7710886ca
Reviewed-on: https://pdfium-review.googlesource.com/14611
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>

4 files changed, 6 insertions, 19 deletions

diff --git a/xfa/fwl/cfwl_widgetmgr.cpp b/xfa/fwl/cfwl_widgetmgr.cpp
index 4f697361c5..a0f6e3a18c 100644
--- a/xfa/fwl/cfwl_widgetmgr.cpp
+++ b/xfa/fwl/cfwl_widgetmgr.cpp
@@ -29,8 +29,8 @@ struct FWL_NEEDREPAINTHITDATA {
 }  // namespace
 
 CFWL_WidgetMgr::CFWL_WidgetMgr(CXFA_FFApp* pAdapterNative)
-    : m_dwCapability(0),
-      m_pAdapter(pAdapterNative->GetFWLAdapterWidgetMgr(this)) {
+    : m_dwCapability(FWL_WGTMGR_DisableForm),
+      m_pAdapter(pAdapterNative->GetFWLAdapterWidgetMgr()) {
   ASSERT(m_pAdapter);
   m_mapWidgetItem[nullptr] = pdfium::MakeUnique<Item>();
 #if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
@@ -386,10 +386,6 @@ void CFWL_WidgetMgr::GetAdapterPopupPos(CFWL_Widget* pWidget,
   m_pAdapter->GetPopupPos(pWidget, fMinHeight, fMaxHeight, rtAnchor, rtPopup);
 }
 
-void CFWL_WidgetMgr::OnSetCapability(uint32_t dwCapability) {
-  m_dwCapability = dwCapability;
-}
-
 void CFWL_WidgetMgr::OnProcessMessageToForm(CFWL_Message* pMessage) {
   if (!pMessage)
     return;
diff --git a/xfa/fwl/cfwl_widgetmgr.h b/xfa/fwl/cfwl_widgetmgr.h
index f633ba8706..c7e48a1f60 100644
--- a/xfa/fwl/cfwl_widgetmgr.h
+++ b/xfa/fwl/cfwl_widgetmgr.h
@@ -28,7 +28,6 @@ class CFWL_WidgetMgr {
   explicit CFWL_WidgetMgr(CXFA_FFApp* pAdapterNative);
   ~CFWL_WidgetMgr();
 
-  void OnSetCapability(uint32_t dwCapability);
   void OnProcessMessageToForm(CFWL_Message* pMessage);
   void OnDrawWidget(CFWL_Widget* pWidget,
                     CXFA_Graphics* pGraphics,
diff --git a/xfa/fxfa/cxfa_ffapp.cpp b/xfa/fxfa/cxfa_ffapp.cpp
index 7ef266b1e5..8ec23e19c4 100644
--- a/xfa/fxfa/cxfa_ffapp.cpp
+++ b/xfa/fxfa/cxfa_ffapp.cpp
@@ -78,13 +78,9 @@ CXFA_FWLTheme* CXFA_FFApp::GetFWLTheme() {
   return m_pFWLTheme.get();
 }
 
-CXFA_FWLAdapterWidgetMgr* CXFA_FFApp::GetFWLAdapterWidgetMgr(
-    CFWL_WidgetMgr* pDelegate) {
-  if (!m_pAdapterWidgetMgr) {
+CXFA_FWLAdapterWidgetMgr* CXFA_FFApp::GetFWLAdapterWidgetMgr() {
+  if (!m_pAdapterWidgetMgr)
     m_pAdapterWidgetMgr = pdfium::MakeUnique<CXFA_FWLAdapterWidgetMgr>();
-    pDelegate->OnSetCapability(FWL_WGTMGR_DisableForm);
-    m_pWidgetMgr = pDelegate;
-  }
   return m_pAdapterWidgetMgr.get();
 }
 
diff --git a/xfa/fxfa/cxfa_ffapp.h b/xfa/fxfa/cxfa_ffapp.h
index 4f2a06db0a..6ee9e45a13 100644
--- a/xfa/fxfa/cxfa_ffapp.h
+++ b/xfa/fxfa/cxfa_ffapp.h
@@ -37,8 +37,8 @@ class CXFA_FFApp {
 
   CXFA_FFDocHandler* GetDocHandler();
 
-  CXFA_FWLAdapterWidgetMgr* GetFWLAdapterWidgetMgr(CFWL_WidgetMgr* pDelegate);
-  CFWL_WidgetMgr* GetFWLWidgetMgr() const { return m_pWidgetMgr.Get(); }
+  CXFA_FWLAdapterWidgetMgr* GetFWLAdapterWidgetMgr();
+  CFWL_WidgetMgr* GetFWLWidgetMgr() const { return m_pFWLApp->GetWidgetMgr(); }
 
   CFGAS_FontMgr* GetFDEFontMgr();
   CXFA_FWLTheme* GetFWLTheme();
@@ -76,10 +76,6 @@ class CXFA_FFApp {
   // may refers to theme manager and the latter refers to font manager.
   std::unique_ptr<CXFA_FWLTheme> m_pFWLTheme;
   std::unique_ptr<CFWL_App> m_pFWLApp;
-
-  // |m_pWidgetMgr| has to be released before |m_pFWLApp|, since
-  // |m_pFWLApp| is its owner.
-  CFX_UnownedPtr<CFWL_WidgetMgr> m_pWidgetMgr;
 };
 
 #endif  // XFA_FXFA_CXFA_FFAPP_H_