Cleanup the xfa/src/fdp directory.

This CL renames xfa/src/fdp to xfa/src/fde to better match all of the content
(nothing mentions fdp other then the directory name). The inner src/ and
include/ folders are collapsed up a level and xfa/src/fdp/src/fde is moved
up to xfa/src/fde.

Some of the header moves conflicted with existing headers. In that case, the
existing header had the content moved into the .cpp file and we replaced the
existing header with the one from include/.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1784543002 .

1 files changed, 98 insertions, 0 deletions

diff --git a/xfa/src/fde/fde_iterator.cpp b/xfa/src/fde/fde_iterator.cpp
new file mode 100644
index 0000000000..71be02ea9d
--- /dev/null
+++ b/xfa/src/fde/fde_iterator.cpp
@@ -0,0 +1,98 @@
+// 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/src/fde/fde_iterator.h"
+
+#include "xfa/src/fgas/crt/fgas_utils.h"
+
+IFDE_VisualSetIterator* IFDE_VisualSetIterator::Create() {
+  return new CFDE_VisualSetIterator;
+}
+CFDE_VisualSetIterator::CFDE_VisualSetIterator() : m_dwFilter(0) {}
+CFDE_VisualSetIterator::~CFDE_VisualSetIterator() {
+  m_CanvasStack.RemoveAll();
+}
+FX_BOOL CFDE_VisualSetIterator::AttachCanvas(IFDE_CanvasSet* pCanvas) {
+  FXSYS_assert(pCanvas != NULL);
+  m_CanvasStack.RemoveAll();
+  FDE_CANVASITEM canvas;
+  canvas.hCanvas = NULL;
+  canvas.pCanvas = pCanvas;
+  canvas.hPos = pCanvas->GetFirstPosition(NULL);
+  if (canvas.hPos == NULL) {
+    return FALSE;
+  }
+  return m_CanvasStack.Push(canvas) == 0;
+}
+FX_BOOL CFDE_VisualSetIterator::FilterObjects(FX_DWORD dwObjects) {
+  if (m_CanvasStack.GetSize() == 0) {
+    return FALSE;
+  }
+  while (m_CanvasStack.GetSize() > 1) {
+    m_CanvasStack.Pop();
+  }
+  m_dwFilter = dwObjects & ~(FX_DWORD)FDE_VISUALOBJ_Widget;
+  if (dwObjects & FDE_VISUALOBJ_Widget) {
+    m_dwFilter |= 0xFF00;
+  }
+  FDE_CANVASITEM* pCanvas = m_CanvasStack.GetTopElement();
+  FXSYS_assert(pCanvas != NULL && pCanvas->pCanvas != NULL);
+  pCanvas->hPos = pCanvas->pCanvas->GetFirstPosition(NULL);
+  return pCanvas->hPos != NULL;
+}
+void CFDE_VisualSetIterator::Reset() {
+  FilterObjects(m_dwFilter);
+}
+FDE_HVISUALOBJ CFDE_VisualSetIterator::GetNext(IFDE_VisualSet*& pVisualSet,
+                                               FDE_HVISUALOBJ* phCanvasObj,
+                                               IFDE_CanvasSet** ppCanvasSet) {
+  while (m_CanvasStack.GetSize() > 0) {
+    FDE_CANVASITEM* pCanvas = m_CanvasStack.GetTopElement();
+    FXSYS_assert(pCanvas != NULL && pCanvas->pCanvas != NULL);
+    if (pCanvas->hPos == NULL) {
+      if (m_CanvasStack.GetSize() == 1) {
+        break;
+      }
+      m_CanvasStack.Pop();
+      continue;
+    }
+    do {
+      FDE_HVISUALOBJ hObj = pCanvas->pCanvas->GetNext(
+          pCanvas->hCanvas, pCanvas->hPos, pVisualSet);
+      FXSYS_assert(hObj != NULL);
+      FDE_VISUALOBJTYPE eType = pVisualSet->GetType();
+      if (eType == FDE_VISUALOBJ_Canvas) {
+        FDE_CANVASITEM canvas;
+        canvas.hCanvas = hObj;
+        canvas.pCanvas = (IFDE_CanvasSet*)pVisualSet;
+        canvas.hPos = canvas.pCanvas->GetFirstPosition(hObj);
+        m_CanvasStack.Push(canvas);
+        break;
+      }
+      FX_DWORD dwObj =
+          (eType == FDE_VISUALOBJ_Widget)
+              ? (FX_DWORD)((IFDE_WidgetSet*)pVisualSet)->GetWidgetType(hObj)
+              : (FX_DWORD)eType;
+      if ((m_dwFilter & dwObj) != 0) {
+        if (ppCanvasSet) {
+          *ppCanvasSet = pCanvas->pCanvas;
+        }
+        if (phCanvasObj) {
+          *phCanvasObj = pCanvas->hCanvas;
+        }
+        return hObj;
+      }
+    } while (pCanvas->hPos != NULL);
+  }
+  if (ppCanvasSet) {
+    *ppCanvasSet = NULL;
+  }
+  if (phCanvasObj) {
+    *phCanvasObj = NULL;
+  }
+  pVisualSet = NULL;
+  return NULL;
+}