Convert CXFA_WidgetAccIterator to CXFA_ReadyNodeIterator

This CL converts the WidgetAcc iterator to return nodes in which the
OnReady event has been fired.

Change-Id: I5ec6809c1610ac3467019d8492121901d3845a37
Reviewed-on: https://pdfium-review.googlesource.com/23490
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/xfa/fxfa/cxfa_readynodeiterator.cpp b/xfa/fxfa/cxfa_readynodeiterator.cpp
new file mode 100644
index 0000000000..728d9d6377
--- /dev/null
+++ b/xfa/fxfa/cxfa_readynodeiterator.cpp
@@ -0,0 +1,31 @@
+// Copyright 2017 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/fxfa/cxfa_readynodeiterator.h"
+
+#include "xfa/fxfa/parser/cxfa_node.h"
+
+CXFA_ReadyNodeIterator::CXFA_ReadyNodeIterator(CXFA_Node* pTravelRoot)
+    : m_ContentIterator(pTravelRoot) {}
+
+CXFA_ReadyNodeIterator::~CXFA_ReadyNodeIterator() {}
+
+CXFA_Node* CXFA_ReadyNodeIterator::MoveToNext() {
+  CXFA_Node* pItem = m_pCurNode ? m_ContentIterator.MoveToNext()
+                                : m_ContentIterator.GetCurrent();
+  while (pItem) {
+    m_pCurNode = pItem->IsWidgetReady() ? pItem : nullptr;
+    if (m_pCurNode)
+      return m_pCurNode.Get();
+    pItem = m_ContentIterator.MoveToNext();
+  }
+  return nullptr;
+}
+
+void CXFA_ReadyNodeIterator::SkipTree() {
+  m_ContentIterator.SkipChildrenAndMoveToNext();
+  m_pCurNode = nullptr;
+}