Remove spellchecking code from XFAchromium/3390

The existing code for spellchecking is non-functional and we are not
planning on fixing/finishing it, so removing it, since it currently is
marking everything as misspelt.

BUG=pdfium:1054

Change-Id: I23aaa13c09aed483376d7d06f47fdf31d890786b
Reviewed-on: https://pdfium-review.googlesource.com/29790
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>

5 files changed, 0 insertions, 136 deletions

diff --git a/xfa/fwl/cfwl_edit.cpp b/xfa/fwl/cfwl_edit.cpp
index 0067cab20a..733961eead 100644
--- a/xfa/fwl/cfwl_edit.cpp
+++ b/xfa/fwl/cfwl_edit.cpp
@@ -19,7 +19,6 @@
 #include "xfa/fwl/cfwl_app.h"
 #include "xfa/fwl/cfwl_caret.h"
 #include "xfa/fwl/cfwl_event.h"
-#include "xfa/fwl/cfwl_eventcheckword.h"
 #include "xfa/fwl/cfwl_eventtextchanged.h"
 #include "xfa/fwl/cfwl_eventvalidate.h"
 #include "xfa/fwl/cfwl_messagekey.h"
@@ -43,23 +42,6 @@ constexpr int kEditingModifier = FWL_KEYFLAG_Command;
 constexpr int kEditingModifier = FWL_KEYFLAG_Ctrl;
 #endif
 
-bool FxEditIsLatinWord(wchar_t c) {
-  return c == 0x2D || (c <= 0x005A && c >= 0x0041) ||
-         (c <= 0x007A && c >= 0x0061) || (c <= 0x02AF && c >= 0x00C0) ||
-         c == 0x0027;
-}
-
-void AddSquigglyPath(CXFA_GEPath* pPathData,
-                     float fStartX,
-                     float fEndX,
-                     float fY,
-                     float fStep) {
-  pPathData->MoveTo(CFX_PointF(fStartX, fY));
-  int i = 1;
-  for (float fx = fStartX + fStep; fx < fEndX; fx += fStep, ++i)
-    pPathData->LineTo(CFX_PointF(fx, fY + (i & 1) * fStep));
-}
-
 }  // namespace
 
 CFWL_Edit::CFWL_Edit(const CFWL_App* app,
@@ -162,80 +144,6 @@ FWL_WidgetHit CFWL_Edit::HitTest(const CFX_PointF& point) {
   return FWL_WidgetHit::Unknown;
 }
 
-void CFWL_Edit::AddSpellCheckObj(CXFA_GEPath& PathData,
-                                 int32_t nStart,
-                                 int32_t nCount,
-                                 float fOffSetX,
-                                 float fOffSetY) {
-  float fStep = m_EdtEngine.GetFontSize() / 16.0f;
-  float font_ascent = m_EdtEngine.GetFontAscent();
-
-  std::vector<CFX_RectF> rects =
-      m_EdtEngine.GetCharacterRectsInRange(nStart, nCount);
-  for (const auto& rect : rects) {
-    float fY = rect.top + font_ascent + fOffSetY;
-    float fStartX = rect.left + fOffSetX;
-    float fEndX = fStartX + rect.Width();
-
-    AddSquigglyPath(&PathData, fStartX, fEndX, fY, fStep);
-  }
-}
-
-void CFWL_Edit::DrawSpellCheck(CXFA_Graphics* pGraphics,
-                               const CFX_Matrix* pMatrix) {
-  pGraphics->SaveGraphState();
-  if (pMatrix)
-    pGraphics->ConcatMatrix(pMatrix);
-
-  CFWL_EventCheckWord checkWordEvent(this);
-  ByteString sLatinWord;
-  CXFA_GEPath pathSpell;
-  int32_t nStart = 0;
-  float fOffSetX = m_rtEngine.left - m_fScrollOffsetX;
-  float fOffSetY = m_rtEngine.top - m_fScrollOffsetY + m_fVAlignOffset;
-  WideString wsSpell = GetText();
-  int32_t nContentLen = wsSpell.GetLength();
-  for (int i = 0; i < nContentLen; i++) {
-    if (FxEditIsLatinWord(wsSpell[i])) {
-      if (sLatinWord.IsEmpty())
-        nStart = i;
-      sLatinWord += (char)wsSpell[i];
-      continue;
-    }
-    checkWordEvent.bsWord = sLatinWord;
-    checkWordEvent.bCheckWord = true;
-    DispatchEvent(&checkWordEvent);
-
-    if (!sLatinWord.IsEmpty() && !checkWordEvent.bCheckWord) {
-      AddSpellCheckObj(pathSpell, nStart, sLatinWord.GetLength(), fOffSetX,
-                       fOffSetY);
-    }
-    sLatinWord.clear();
-  }
-
-  checkWordEvent.bsWord = sLatinWord;
-  checkWordEvent.bCheckWord = true;
-  DispatchEvent(&checkWordEvent);
-
-  if (!sLatinWord.IsEmpty() && !checkWordEvent.bCheckWord) {
-    AddSpellCheckObj(pathSpell, nStart, sLatinWord.GetLength(), fOffSetX,
-                     fOffSetY);
-  }
-  if (!pathSpell.IsEmpty()) {
-    CFX_RectF rtClip = m_rtEngine;
-    CFX_Matrix mt(1, 0, 0, 1, fOffSetX, fOffSetY);
-    if (pMatrix) {
-      rtClip = pMatrix->TransformRect(rtClip);
-      mt.Concat(*pMatrix);
-    }
-    pGraphics->SetClipRect(rtClip);
-    pGraphics->SetStrokeColor(CXFA_GEColor(0xFFFF0000));
-    pGraphics->SetLineWidth(0);
-    pGraphics->StrokePath(&pathSpell, nullptr);
-  }
-  pGraphics->RestoreGraphState();
-}
-
 void CFWL_Edit::DrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix& matrix) {
   if (!pGraphics)
     return;
@@ -249,10 +157,6 @@ void CFWL_Edit::DrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix& matrix) {
     DrawTextBk(pGraphics, pTheme, &matrix);
   DrawContent(pGraphics, pTheme, &matrix);
 
-  if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) &&
-      !(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ReadOnly)) {
-    DrawSpellCheck(pGraphics, &matrix);
-  }
   if (HasBorder())
     DrawBorder(pGraphics, CFWL_Part::Border, pTheme, matrix);
 }
diff --git a/xfa/fwl/cfwl_edit.h b/xfa/fwl/cfwl_edit.h
index 9c667f5e14..894315de82 100644
--- a/xfa/fwl/cfwl_edit.h
+++ b/xfa/fwl/cfwl_edit.h
@@ -114,7 +114,6 @@ class CFWL_Edit : public CFWL_Widget, public CFDE_TextEditEngine::Delegate {
   void DrawContent(CXFA_Graphics* pGraphics,
                    IFWL_ThemeProvider* pTheme,
                    const CFX_Matrix* pMatrix);
-  void DrawSpellCheck(CXFA_Graphics* pGraphics, const CFX_Matrix* pMatrix);
 
   void UpdateEditEngine();
   void UpdateEditParams();
@@ -134,11 +133,6 @@ class CFWL_Edit : public CFWL_Widget, public CFDE_TextEditEngine::Delegate {
   bool ValidateNumberChar(wchar_t cNum);
   bool IsShowScrollBar(bool bVert);
   bool IsContentHeightOverflow();
-  void AddSpellCheckObj(CXFA_GEPath& PathData,
-                        int32_t nStart,
-                        int32_t nCount,
-                        float fOffSetX,
-                        float fOffSetY);
   void SetCursorPosition(size_t position);
   void UpdateCursorRect();
 
diff --git a/xfa/fwl/cfwl_event.h b/xfa/fwl/cfwl_event.h
index 01e3914b8b..787f8c2640 100644
--- a/xfa/fwl/cfwl_event.h
+++ b/xfa/fwl/cfwl_event.h
@@ -20,7 +20,6 @@ class CFWL_Event {
  public:
   enum class Type {
     CheckStateChanged,
-    CheckWord,
     Click,
     Close,
     EditChanged,
diff --git a/xfa/fwl/cfwl_eventcheckword.cpp b/xfa/fwl/cfwl_eventcheckword.cpp
deleted file mode 100644
index fb0ce6e77e..0000000000
--- a/xfa/fwl/cfwl_eventcheckword.cpp
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2016 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/cfwl_eventcheckword.h"
-
-CFWL_EventCheckWord::CFWL_EventCheckWord(CFWL_Widget* pSrcTarget)
-    : CFWL_Event(CFWL_Event::Type::CheckWord, pSrcTarget) {}
-
-CFWL_EventCheckWord::~CFWL_EventCheckWord() {}
diff --git a/xfa/fwl/cfwl_eventcheckword.h b/xfa/fwl/cfwl_eventcheckword.h
deleted file mode 100644
index fafe3d3278..0000000000
--- a/xfa/fwl/cfwl_eventcheckword.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2016 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
-
-#ifndef XFA_FWL_CFWL_EVENTCHECKWORD_H_
-#define XFA_FWL_CFWL_EVENTCHECKWORD_H_
-
-#include "xfa/fwl/cfwl_event.h"
-
-class CFWL_EventCheckWord : public CFWL_Event {
- public:
-  explicit CFWL_EventCheckWord(CFWL_Widget* pSrcTarget);
-  ~CFWL_EventCheckWord() override;
-
-  ByteString bsWord;
-  bool bCheckWord;
-};
-
-#endif  // XFA_FWL_CFWL_EVENTCHECKWORD_H_