// 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 "fpdfsdk/cpdfsdk_baannothandler.h"

#include <memory>
#include <vector>

#include "core/fpdfapi/page/cpdf_page.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfdoc/cpdf_interactiveform.h"
#include "fpdfsdk/cpdfsdk_annot.h"
#include "fpdfsdk/cpdfsdk_baannot.h"
#include "fpdfsdk/cpdfsdk_pageview.h"
#include "fpdfsdk/formfiller/cffl_formfiller.h"

namespace {

void UpdateAnnotRects(CPDFSDK_PageView* pPageView, CPDFSDK_BAAnnot* pBAAnnot) {
  std::vector<CFX_FloatRect> rects;
  rects.push_back(pBAAnnot->GetRect());
  if (CPDF_Annot* pPopupAnnot = pBAAnnot->GetPDFPopupAnnot())
    rects.push_back(pPopupAnnot->GetRect());

  // Make the rects round up to avoid https://crbug.com/662804
  for (CFX_FloatRect& rect : rects)
    rect.Inflate(1, 1);

  pPageView->UpdateRects(rects);
}

}  // namespace

CPDFSDK_BAAnnotHandler::CPDFSDK_BAAnnotHandler() {}

CPDFSDK_BAAnnotHandler::~CPDFSDK_BAAnnotHandler() {}

void CPDFSDK_BAAnnotHandler::SetFormFillEnvironment(
    CPDFSDK_FormFillEnvironment* pFormFillEnv) {
  // CPDFSDK_BAAnnotHandler does not need it.
}

bool CPDFSDK_BAAnnotHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
  return false;
}

std::unique_ptr<CPDFSDK_Annot> CPDFSDK_BAAnnotHandler::NewAnnot(
    CPDF_Annot* pAnnot,
    CPDFSDK_PageView* pPageView) {
  return pdfium::MakeUnique<CPDFSDK_BAAnnot>(pAnnot, pPageView);
}

void CPDFSDK_BAAnnotHandler::ReleaseAnnot(
    std::unique_ptr<CPDFSDK_Annot> pAnnot) {
  // pAnnot deleted by unique_ptr going out of scope.
}

void CPDFSDK_BAAnnotHandler::OnDraw(CPDFSDK_PageView* pPageView,
                                    CPDFSDK_Annot* pAnnot,
                                    CFX_RenderDevice* pDevice,
                                    const CFX_Matrix& mtUser2Device,
                                    bool bDrawAnnots) {
  if (pAnnot->AsXFAWidget())
    return;

  if (bDrawAnnots && pAnnot->GetAnnotSubtype() == CPDF_Annot::Subtype::POPUP) {
    pAnnot->AsBAAnnot()->DrawAppearance(pDevice, mtUser2Device,
                                        CPDF_Annot::Normal, nullptr);
  }
}

void CPDFSDK_BAAnnotHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
                                          ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                          uint32_t nFlag) {
  CPDFSDK_BAAnnot* pBAAnnot = (*pAnnot)->AsBAAnnot();
  pBAAnnot->SetOpenState(true);
  UpdateAnnotRects(pPageView, pBAAnnot);
}

void CPDFSDK_BAAnnotHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
                                         ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                         uint32_t nFlag) {
  CPDFSDK_BAAnnot* pBAAnnot = (*pAnnot)->AsBAAnnot();
  pBAAnnot->SetOpenState(false);
  UpdateAnnotRects(pPageView, pBAAnnot);
}

bool CPDFSDK_BAAnnotHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
                                           ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                           uint32_t nFlags,
                                           const CFX_PointF& point) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
                                         ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                         uint32_t nFlags,
                                         const CFX_PointF& point) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
                                             ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                             uint32_t nFlags,
                                             const CFX_PointF& point) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
                                         ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                         uint32_t nFlags,
                                         const CFX_PointF& point) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
                                          ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                          uint32_t nFlags,
                                          short zDelta,
                                          const CFX_PointF& point) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
                                           ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                           uint32_t nFlags,
                                           const CFX_PointF& point) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
                                         ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                         uint32_t nFlags,
                                         const CFX_PointF& point) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView,
                                             ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                             uint32_t nFlags,
                                             const CFX_PointF& point) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnChar(CPDFSDK_Annot* pAnnot,
                                    uint32_t nChar,
                                    uint32_t nFlags) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnKeyDown(CPDFSDK_Annot* pAnnot,
                                       int nKeyCode,
                                       int nFlag) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
                                     int nKeyCode,
                                     int nFlag) {
  return false;
}

void CPDFSDK_BAAnnotHandler::OnLoad(CPDFSDK_Annot* pAnnot) {}

bool CPDFSDK_BAAnnotHandler::OnSetFocus(ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                        uint32_t nFlag) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::OnKillFocus(ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                         uint32_t nFlag) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::SetIndexSelected(
    ObservedPtr<CPDFSDK_Annot>* pAnnot,
    int index,
    bool selected) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::IsIndexSelected(ObservedPtr<CPDFSDK_Annot>* pAnnot,
                                             int index) {
  return false;
}

CFX_FloatRect CPDFSDK_BAAnnotHandler::GetViewBBox(CPDFSDK_PageView* pPageView,
                                                  CPDFSDK_Annot* pAnnot) {
  return pAnnot->GetRect();
}

WideString CPDFSDK_BAAnnotHandler::GetText(CPDFSDK_Annot* pAnnot) {
  return WideString();
}

WideString CPDFSDK_BAAnnotHandler::GetSelectedText(CPDFSDK_Annot* pAnnot) {
  return WideString();
}

void CPDFSDK_BAAnnotHandler::ReplaceSelection(CPDFSDK_Annot* pAnnot,
                                              const WideString& text) {}

bool CPDFSDK_BAAnnotHandler::CanUndo(CPDFSDK_Annot* pAnnot) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::CanRedo(CPDFSDK_Annot* pAnnot) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::Undo(CPDFSDK_Annot* pAnnot) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::Redo(CPDFSDK_Annot* pAnnot) {
  return false;
}

bool CPDFSDK_BAAnnotHandler::HitTest(CPDFSDK_PageView* pPageView,
                                     CPDFSDK_Annot* pAnnot,
                                     const CFX_PointF& point) {
  ASSERT(pPageView);
  ASSERT(pAnnot);
  return GetViewBBox(pPageView, pAnnot).Contains(point);
}