// 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/fxfa/app/xfa_ffimageedit.h"

#include "xfa/fwl/core/cfwl_message.h"
#include "xfa/fwl/core/ifwl_app.h"
#include "xfa/fwl/core/ifwl_notedriver.h"
#include "xfa/fwl/lightwidget/cfwl_picturebox.h"
#include "xfa/fxfa/app/xfa_fffield.h"
#include "xfa/include/fxfa/xfa_ffdoc.h"
#include "xfa/include/fxfa/xfa_ffdocview.h"
#include "xfa/include/fxfa/xfa_ffpageview.h"
#include "xfa/include/fxfa/xfa_ffwidget.h"

CXFA_FFImageEdit::CXFA_FFImageEdit(CXFA_FFPageView* pPageView,
                                   CXFA_WidgetAcc* pDataAcc)
    : CXFA_FFField(pPageView, pDataAcc), m_pOldDelegate(NULL) {}
CXFA_FFImageEdit::~CXFA_FFImageEdit() {
  CXFA_FFImageEdit::UnloadWidget();
}
FX_BOOL CXFA_FFImageEdit::LoadWidget() {
  CFWL_PictureBox* pPictureBox = new CFWL_PictureBox;
  if (pPictureBox) {
    pPictureBox->Initialize();
  }
  m_pNormalWidget = (CFWL_Widget*)pPictureBox;
  IFWL_Widget* pWidget = m_pNormalWidget->GetWidget();
  m_pNormalWidget->SetPrivateData(pWidget, this, NULL);
  IFWL_NoteDriver* pNoteDriver = FWL_GetApp()->GetNoteDriver();
  pNoteDriver->RegisterEventTarget(pWidget, pWidget);
  m_pOldDelegate = pPictureBox->SetDelegate(this);
  CXFA_FFField::LoadWidget();
  if (m_pDataAcc->GetImageEditImage()) {
    return TRUE;
  }
  UpdateFWLData();
  return TRUE;
}
void CXFA_FFImageEdit::UnloadWidget() {
  m_pDataAcc->SetImageEditImage(NULL);
  CXFA_FFField::UnloadWidget();
}
void CXFA_FFImageEdit::RenderWidget(CFX_Graphics* pGS,
                                    CFX_Matrix* pMatrix,
                                    uint32_t dwStatus,
                                    int32_t iRotate) {
  if (!IsMatchVisibleStatus(dwStatus)) {
    return;
  }
  CFX_Matrix mtRotate;
  GetRotateMatrix(mtRotate);
  if (pMatrix) {
    mtRotate.Concat(*pMatrix);
  }
  CXFA_FFWidget::RenderWidget(pGS, &mtRotate, dwStatus);
  CXFA_Border borderUI = m_pDataAcc->GetUIBorder();
  DrawBorder(pGS, borderUI, m_rtUI, &mtRotate);
  RenderCaption(pGS, &mtRotate);
  if (CFX_DIBitmap* pDIBitmap = m_pDataAcc->GetImageEditImage()) {
    CFX_RectF rtImage;
    m_pNormalWidget->GetWidgetRect(rtImage);
    int32_t iHorzAlign = XFA_ATTRIBUTEENUM_Left;
    int32_t iVertAlign = XFA_ATTRIBUTEENUM_Top;
    if (CXFA_Para para = m_pDataAcc->GetPara()) {
      iHorzAlign = para.GetHorizontalAlign();
      iVertAlign = para.GetVerticalAlign();
    }
    int32_t iAspect = XFA_ATTRIBUTEENUM_Fit;
    if (CXFA_Value value = m_pDataAcc->GetFormValue()) {
      if (CXFA_Image imageObj = value.GetImage()) {
        iAspect = imageObj.GetAspect();
      }
    }
    int32_t iImageXDpi = 0;
    int32_t iImageYDpi = 0;
    m_pDataAcc->GetImageEditDpi(iImageXDpi, iImageYDpi);
    XFA_DrawImage(pGS, rtImage, &mtRotate, pDIBitmap, iAspect, iImageXDpi,
                  iImageYDpi, iHorzAlign, iVertAlign);
  }
}
FX_BOOL CXFA_FFImageEdit::OnLButtonDown(uint32_t dwFlags,
                                        FX_FLOAT fx,
                                        FX_FLOAT fy) {
  if (m_pDataAcc->GetAccess() != XFA_ATTRIBUTEENUM_Open) {
    return FALSE;
  }
  if (!PtInActiveRect(fx, fy)) {
    return FALSE;
  }
  SetButtonDown(TRUE);
  CFWL_MsgMouse ms;
  ms.m_dwCmd = FWL_MSGMOUSECMD_LButtonDown;
  ms.m_dwFlags = dwFlags;
  ms.m_fx = fx;
  ms.m_fy = fy;
  ms.m_pDstTarget = m_pNormalWidget->m_pIface;
  FWLToClient(ms.m_fx, ms.m_fy);
  TranslateFWLMessage(&ms);
  IXFA_AppProvider* pAppProvider = GetAppProvider();
  if (!pAppProvider) {
    return TRUE;
  }
  CFX_WideString wsTitle;
  CFX_WideString wsFilter;
  pAppProvider->LoadString(XFA_IDS_ImageFilter, wsFilter);
  CFX_WideStringArray wsPathArray;
  pAppProvider->ShowFileDialog(wsTitle.AsWideStringC(),
                               wsFilter.AsWideStringC(), wsPathArray);
  int32_t iSize = wsPathArray.GetSize();
  if (iSize < 1) {
    return TRUE;
  }
  CFX_WideString wsFilePath = wsPathArray[0];
  FX_STRSIZE nLen = wsFilePath.GetLength();
  FX_STRSIZE nIndex = nLen - 1;
  while (nIndex > 0 && wsFilePath[nIndex] != '.') {
    nIndex--;
  }
  if (nIndex <= 0) {
    return TRUE;
  }
  CFX_WideString wsContentType(L"image/");
  wsContentType += wsFilePath.Right(nLen - nIndex - 1);
  wsContentType.MakeLower();
  FXCODEC_IMAGE_TYPE eImageType = XFA_GetImageType(wsContentType);
  if (eImageType == FXCODEC_IMAGE_UNKNOWN) {
    return TRUE;
  }
  CFX_WideString wsImage;
  IFX_FileRead* pFileRead = FX_CreateFileRead(wsFilePath);
  if (pFileRead) {
    int32_t nDataSize = pFileRead->GetSize();
    if (nDataSize > 0) {
      CFX_ByteString bsBuf;
      FX_CHAR* pImageBuffer = bsBuf.GetBuffer(nDataSize);
      pFileRead->ReadBlock(pImageBuffer, 0, nDataSize);
      bsBuf.ReleaseBuffer();
      if (!bsBuf.IsEmpty()) {
        FX_CHAR* pData = XFA_Base64Encode(bsBuf, nDataSize);
        wsImage = CFX_WideString::FromLocal(pData);
        FX_Free(pData);
      }
    }
    m_pDataAcc->SetImageEditImage(NULL);
    pFileRead->Release();
  }
  m_pDataAcc->SetImageEdit(wsContentType.AsWideStringC(), CFX_WideStringC(),
                           wsImage.AsWideStringC());
  m_pDataAcc->LoadImageEditImage();
  AddInvalidateRect();
  m_pDocView->SetChangeMark();
  return TRUE;
}
void CXFA_FFImageEdit::SetFWLRect() {
  if (!m_pNormalWidget) {
    return;
  }
  CFX_RectF rtUIMargin;
  m_pDataAcc->GetUIMargin(rtUIMargin);
  CFX_RectF rtImage(m_rtUI);
  rtImage.Deflate(rtUIMargin.left, rtUIMargin.top, rtUIMargin.width,
                  rtUIMargin.height);
  m_pNormalWidget->SetWidgetRect(rtImage);
}
FX_BOOL CXFA_FFImageEdit::CommitData() {
  return TRUE;
}
FX_BOOL CXFA_FFImageEdit::UpdateFWLData() {
  m_pDataAcc->SetImageEditImage(NULL);
  m_pDataAcc->LoadImageEditImage();
  return TRUE;
}
int32_t CXFA_FFImageEdit::OnProcessMessage(CFWL_Message* pMessage) {
  return m_pOldDelegate->OnProcessMessage(pMessage);
}
FWL_ERR CXFA_FFImageEdit::OnProcessEvent(CFWL_Event* pEvent) {
  CXFA_FFField::OnProcessEvent(pEvent);
  return m_pOldDelegate->OnProcessEvent(pEvent);
}
FWL_ERR CXFA_FFImageEdit::OnDrawWidget(CFX_Graphics* pGraphics,
                                       const CFX_Matrix* pMatrix) {
  return m_pOldDelegate->OnDrawWidget(pGraphics, pMatrix);
}