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// 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 "fpdfsdk/formfiller/cffl_formfiller.h"
#include <utility>
#include "core/fpdfapi/page/cpdf_page.h"
#include "core/fxge/cfx_renderdevice.h"
#include "fpdfsdk/cpdfsdk_common.h"
#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include "fpdfsdk/cpdfsdk_pageview.h"
#include "fpdfsdk/cpdfsdk_widget.h"
#include "fpdfsdk/formfiller/cba_fontmap.h"
CFFL_FormFiller::CFFL_FormFiller(CPDFSDK_FormFillEnvironment* pFormFillEnv,
CPDFSDK_Widget* pWidget)
: m_pFormFillEnv(pFormFillEnv), m_pWidget(pWidget), m_bValid(false) {
ASSERT(m_pFormFillEnv);
}
CFFL_FormFiller::~CFFL_FormFiller() {
DestroyWindows();
}
void CFFL_FormFiller::DestroyWindows() {
for (const auto& it : m_Maps) {
CPWL_Wnd* pWnd = it.second;
auto* pData = static_cast<CFFL_PrivateData*>(pWnd->GetAttachedData());
pWnd->InvalidateProvider(this);
pWnd->Destroy();
delete pWnd;
delete pData;
}
m_Maps.clear();
}
FX_RECT CFFL_FormFiller::GetViewBBox(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot) {
ASSERT(pPageView);
ASSERT(pAnnot);
CFX_FloatRect rcAnnot = m_pWidget->GetRect();
if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false))
rcAnnot = PWLtoFFL(pWnd->GetWindowRect());
CFX_FloatRect rcWin = rcAnnot;
CFX_FloatRect rcFocus = GetFocusBox(pPageView);
if (!rcFocus.IsEmpty())
rcWin.Union(rcFocus);
if (!rcWin.IsEmpty()) {
rcWin.Inflate(1, 1);
rcWin.Normalize();
}
return rcWin.GetOuterRect();
}
void CFFL_FormFiller::OnDraw(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
CFX_RenderDevice* pDevice,
const CFX_Matrix& mtUser2Device) {
if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false)) {
CFX_Matrix mt = GetCurMatrix();
mt.Concat(mtUser2Device);
pWnd->DrawAppearance(pDevice, mt);
return;
}
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot);
if (!CFFL_InteractiveFormFiller::IsVisible(pWidget))
return;
pWidget->DrawAppearance(pDevice, mtUser2Device, CPDF_Annot::Normal, nullptr);
}
void CFFL_FormFiller::OnDrawDeactive(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
CFX_RenderDevice* pDevice,
const CFX_Matrix& mtUser2Device) {
ToCPDFSDKWidget(pAnnot)->DrawAppearance(pDevice, mtUser2Device,
CPDF_Annot::Normal, nullptr);
}
void CFFL_FormFiller::OnMouseEnter(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot) {}
void CFFL_FormFiller::OnMouseExit(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot) {
EndTimer();
ASSERT(m_pWidget);
}
bool CFFL_FormFiller::OnLButtonDown(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, true);
if (!pWnd)
return false;
m_bValid = true;
FX_RECT rect = GetViewBBox(pPageView, pAnnot);
InvalidateRect(rect);
if (!rect.Contains(static_cast<int>(point.x), static_cast<int>(point.y)))
return false;
return pWnd->OnLButtonDown(WndtoPWL(pPageView, point), nFlags);
}
bool CFFL_FormFiller::OnLButtonUp(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
if (!pWnd)
return false;
InvalidateRect(GetViewBBox(pPageView, pAnnot));
pWnd->OnLButtonUp(WndtoPWL(pPageView, point), nFlags);
return true;
}
bool CFFL_FormFiller::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
if (!pWnd)
return false;
pWnd->OnLButtonDblClk(WndtoPWL(pPageView, point), nFlags);
return true;
}
bool CFFL_FormFiller::OnMouseMove(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
if (!pWnd)
return false;
pWnd->OnMouseMove(WndtoPWL(pPageView, point), nFlags);
return true;
}
bool CFFL_FormFiller::OnMouseWheel(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
short zDelta,
const CFX_PointF& point) {
if (!IsValid())
return false;
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, true);
return pWnd && pWnd->OnMouseWheel(zDelta, WndtoPWL(pPageView, point), nFlags);
}
bool CFFL_FormFiller::OnRButtonDown(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, true);
if (!pWnd)
return false;
pWnd->OnRButtonDown(WndtoPWL(pPageView, point), nFlags);
return true;
}
bool CFFL_FormFiller::OnRButtonUp(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
if (!pWnd)
return false;
pWnd->OnRButtonUp(WndtoPWL(pPageView, point), nFlags);
return true;
}
bool CFFL_FormFiller::OnKeyDown(CPDFSDK_Annot* pAnnot,
uint32_t nKeyCode,
uint32_t nFlags) {
if (!IsValid())
return false;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
return pWnd && pWnd->OnKeyDown(nKeyCode, nFlags);
}
bool CFFL_FormFiller::OnChar(CPDFSDK_Annot* pAnnot,
uint32_t nChar,
uint32_t nFlags) {
if (!IsValid())
return false;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
return pWnd && pWnd->OnChar(nChar, nFlags);
}
WideString CFFL_FormFiller::GetText(CPDFSDK_Annot* pAnnot) {
if (!IsValid())
return WideString();
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
return pWnd ? pWnd->GetText() : WideString();
}
WideString CFFL_FormFiller::GetSelectedText(CPDFSDK_Annot* pAnnot) {
if (!IsValid())
return WideString();
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
return pWnd ? pWnd->GetSelectedText() : WideString();
}
void CFFL_FormFiller::ReplaceSelection(CPDFSDK_Annot* pAnnot,
const WideString& text) {
if (!IsValid())
return;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
if (!pWnd)
return;
pWnd->ReplaceSelection(text);
}
bool CFFL_FormFiller::CanUndo(CPDFSDK_Annot* pAnnot) {
if (!IsValid())
return false;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
return pWnd && pWnd->CanUndo();
}
bool CFFL_FormFiller::CanRedo(CPDFSDK_Annot* pAnnot) {
if (!IsValid())
return false;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
return pWnd && pWnd->CanRedo();
}
bool CFFL_FormFiller::Undo(CPDFSDK_Annot* pAnnot) {
if (!IsValid())
return false;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
return pWnd && pWnd->Undo();
}
bool CFFL_FormFiller::Redo(CPDFSDK_Annot* pAnnot) {
if (!IsValid())
return false;
CPDFSDK_PageView* pPageView = GetCurPageView(true);
ASSERT(pPageView);
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
return pWnd && pWnd->Redo();
}
void CFFL_FormFiller::SetFocusForAnnot(CPDFSDK_Annot* pAnnot, uint32_t nFlag) {
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot);
IPDF_Page* pPage = pWidget->GetPage();
CPDFSDK_PageView* pPageView = m_pFormFillEnv->GetPageView(pPage, true);
if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, true))
pWnd->SetFocus();
m_bValid = true;
InvalidateRect(GetViewBBox(pPageView, pAnnot));
}
void CFFL_FormFiller::KillFocusForAnnot(CPDFSDK_Annot* pAnnot, uint32_t nFlag) {
if (!IsValid())
return;
CPDFSDK_PageView* pPageView = GetCurPageView(false);
if (!pPageView || !CommitData(pPageView, nFlag))
return;
if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false))
pWnd->KillFocus();
bool bDestroyPDFWindow;
switch (m_pWidget->GetFieldType()) {
case FormFieldType::kPushButton:
case FormFieldType::kCheckBox:
case FormFieldType::kRadioButton:
bDestroyPDFWindow = true;
break;
default:
bDestroyPDFWindow = false;
break;
}
EscapeFiller(pPageView, bDestroyPDFWindow);
}
bool CFFL_FormFiller::IsValid() const {
return m_bValid;
}
CPWL_Wnd::CreateParams CFFL_FormFiller::GetCreateParam() {
CPWL_Wnd::CreateParams cp;
cp.pParentWnd = nullptr;
cp.pProvider.Reset(this);
cp.rcRectWnd = GetPDFWindowRect();
uint32_t dwCreateFlags = PWS_BORDER | PWS_BACKGROUND | PWS_VISIBLE;
uint32_t dwFieldFlag = m_pWidget->GetFieldFlags();
if (dwFieldFlag & FIELDFLAG_READONLY)
dwCreateFlags |= PWS_READONLY;
FX_COLORREF color;
if (m_pWidget->GetFillColor(color))
cp.sBackgroundColor = CFX_Color(color);
if (m_pWidget->GetBorderColor(color))
cp.sBorderColor = CFX_Color(color);
cp.sTextColor = CFX_Color(CFX_Color::kGray, 0);
if (m_pWidget->GetTextColor(color))
cp.sTextColor = CFX_Color(color);
cp.fFontSize = m_pWidget->GetFontSize();
cp.dwBorderWidth = m_pWidget->GetBorderWidth();
cp.nBorderStyle = m_pWidget->GetBorderStyle();
switch (cp.nBorderStyle) {
case BorderStyle::DASH:
cp.sDash = CPWL_Dash(3, 3, 0);
break;
case BorderStyle::BEVELED:
case BorderStyle::INSET:
cp.dwBorderWidth *= 2;
break;
default:
break;
}
if (cp.fFontSize <= 0)
dwCreateFlags |= PWS_AUTOFONTSIZE;
cp.dwFlags = dwCreateFlags;
cp.pSystemHandler = m_pFormFillEnv->GetSysHandler();
return cp;
}
CPWL_Wnd* CFFL_FormFiller::GetPDFWindow(CPDFSDK_PageView* pPageView,
bool bNew) {
ASSERT(pPageView);
auto it = m_Maps.find(pPageView);
const bool found = it != m_Maps.end();
CPWL_Wnd* pWnd = found ? it->second : nullptr;
if (!bNew)
return pWnd;
if (!found) {
CPWL_Wnd::CreateParams cp = GetCreateParam();
cp.pAttachedWidget.Reset(m_pWidget.Get());
auto* pPrivateData = new CFFL_PrivateData;
pPrivateData->pWidget = m_pWidget.Get();
pPrivateData->pPageView = pPageView;
pPrivateData->nWidgetAppearanceAge = m_pWidget->GetAppearanceAge();
pPrivateData->nWidgetValueAge = 0;
cp.pAttachedData = pPrivateData;
CPWL_Wnd* pNewWnd = NewPDFWindow(cp);
m_Maps[pPageView] = pNewWnd;
return pNewWnd;
}
auto* pPrivateData = static_cast<CFFL_PrivateData*>(pWnd->GetAttachedData());
if (pPrivateData->nWidgetAppearanceAge == m_pWidget->GetAppearanceAge())
return pWnd;
return ResetPDFWindow(
pPageView, pPrivateData->nWidgetValueAge == m_pWidget->GetValueAge());
}
void CFFL_FormFiller::DestroyPDFWindow(CPDFSDK_PageView* pPageView) {
auto it = m_Maps.find(pPageView);
if (it == m_Maps.end())
return;
CPWL_Wnd* pWnd = it->second;
auto* pData = static_cast<CFFL_PrivateData*>(pWnd->GetAttachedData());
pWnd->Destroy();
delete pWnd;
delete pData;
m_Maps.erase(it);
}
CFX_Matrix CFFL_FormFiller::GetWindowMatrix(CPWL_Wnd::PrivateData* pAttached) {
CFX_Matrix mt;
auto* pPrivateData = static_cast<CFFL_PrivateData*>(pAttached);
if (!pPrivateData || !pPrivateData->pPageView)
return mt;
CFX_Matrix mtPageView;
pPrivateData->pPageView->GetCurrentMatrix(mtPageView);
mt = GetCurMatrix();
mt.Concat(mtPageView);
return mt;
}
CFX_Matrix CFFL_FormFiller::GetCurMatrix() {
CFX_Matrix mt;
CFX_FloatRect rcDA = m_pWidget->GetPDFAnnot()->GetRect();
switch (m_pWidget->GetRotate()) {
case 90:
mt = CFX_Matrix(0, 1, -1, 0, rcDA.right - rcDA.left, 0);
break;
case 180:
mt = CFX_Matrix(-1, 0, 0, -1, rcDA.right - rcDA.left,
rcDA.top - rcDA.bottom);
break;
case 270:
mt = CFX_Matrix(0, -1, 1, 0, 0, rcDA.top - rcDA.bottom);
break;
case 0:
default:
break;
}
mt.e += rcDA.left;
mt.f += rcDA.bottom;
return mt;
}
CFX_FloatRect CFFL_FormFiller::GetPDFWindowRect() const {
CFX_FloatRect rectAnnot = m_pWidget->GetPDFAnnot()->GetRect();
float fWidth = rectAnnot.Width();
float fHeight = rectAnnot.Height();
if ((m_pWidget->GetRotate() / 90) & 0x01)
std::swap(fWidth, fHeight);
return CFX_FloatRect(0, 0, fWidth, fHeight);
}
CPDFSDK_PageView* CFFL_FormFiller::GetCurPageView(bool renew) {
IPDF_Page* pPage = m_pWidget->GetPage();
return m_pFormFillEnv->GetPageView(pPage, renew);
}
CFX_FloatRect CFFL_FormFiller::GetFocusBox(CPDFSDK_PageView* pPageView) {
CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
if (!pWnd)
return CFX_FloatRect();
CFX_FloatRect rcFocus = FFLtoWnd(pPageView, PWLtoFFL(pWnd->GetFocusRect()));
return pPageView->GetPDFPage()->GetBBox().Contains(rcFocus) ? rcFocus
: CFX_FloatRect();
}
CFX_FloatRect CFFL_FormFiller::FFLtoPWL(const CFX_FloatRect& rect) {
return GetCurMatrix().GetInverse().TransformRect(rect);
}
CFX_FloatRect CFFL_FormFiller::PWLtoFFL(const CFX_FloatRect& rect) {
return GetCurMatrix().TransformRect(rect);
}
CFX_PointF CFFL_FormFiller::FFLtoPWL(const CFX_PointF& point) {
return GetCurMatrix().GetInverse().Transform(point);
}
CFX_PointF CFFL_FormFiller::PWLtoFFL(const CFX_PointF& point) {
return GetCurMatrix().Transform(point);
}
CFX_PointF CFFL_FormFiller::WndtoPWL(CPDFSDK_PageView* pPageView,
const CFX_PointF& pt) {
return FFLtoPWL(pt);
}
CFX_FloatRect CFFL_FormFiller::FFLtoWnd(CPDFSDK_PageView* pPageView,
const CFX_FloatRect& rect) {
return rect;
}
bool CFFL_FormFiller::CommitData(CPDFSDK_PageView* pPageView, uint32_t nFlag) {
if (!IsDataChanged(pPageView))
return true;
CFFL_InteractiveFormFiller* pFormFiller =
m_pFormFillEnv->GetInteractiveFormFiller();
CPDFSDK_Annot::ObservedPtr pObserved(m_pWidget.Get());
if (!pFormFiller->OnKeyStrokeCommit(&pObserved, pPageView, nFlag)) {
if (!pObserved)
return false;
ResetPDFWindow(pPageView, false);
return true;
}
if (!pObserved)
return false;
if (!pFormFiller->OnValidate(&pObserved, pPageView, nFlag)) {
if (!pObserved)
return false;
ResetPDFWindow(pPageView, false);
return true;
}
if (!pObserved)
return false;
SaveData(pPageView); // may invoking JS to delete this widget.
if (!pObserved)
return false;
pFormFiller->OnCalculate(&pObserved, pPageView, nFlag);
if (!pObserved)
return false;
pFormFiller->OnFormat(&pObserved, pPageView, nFlag);
if (!pObserved)
return false;
return true;
}
bool CFFL_FormFiller::IsDataChanged(CPDFSDK_PageView* pPageView) {
return false;
}
void CFFL_FormFiller::SaveData(CPDFSDK_PageView* pPageView) {}
#ifdef PDF_ENABLE_XFA
bool CFFL_FormFiller::IsFieldFull(CPDFSDK_PageView* pPageView) {
return false;
}
#endif // PDF_ENABLE_XFA
void CFFL_FormFiller::SetChangeMark() {
m_pFormFillEnv->OnChange();
}
void CFFL_FormFiller::GetActionData(CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
CPDFSDK_FieldAction& fa) {
fa.sValue = m_pWidget->GetValue();
}
void CFFL_FormFiller::SetActionData(CPDFSDK_PageView* pPageView,
CPDF_AAction::AActionType type,
const CPDFSDK_FieldAction& fa) {}
bool CFFL_FormFiller::IsActionDataChanged(CPDF_AAction::AActionType type,
const CPDFSDK_FieldAction& faOld,
const CPDFSDK_FieldAction& faNew) {
return false;
}
void CFFL_FormFiller::SaveState(CPDFSDK_PageView* pPageView) {}
void CFFL_FormFiller::RestoreState(CPDFSDK_PageView* pPageView) {}
CPWL_Wnd* CFFL_FormFiller::ResetPDFWindow(CPDFSDK_PageView* pPageView,
bool bRestoreValue) {
return GetPDFWindow(pPageView, false);
}
void CFFL_FormFiller::TimerProc() {}
CFX_SystemHandler* CFFL_FormFiller::GetSystemHandler() const {
return m_pFormFillEnv->GetSysHandler();
}
void CFFL_FormFiller::EscapeFiller(CPDFSDK_PageView* pPageView,
bool bDestroyPDFWindow) {
m_bValid = false;
InvalidateRect(GetViewBBox(pPageView, m_pWidget.Get()));
if (bDestroyPDFWindow)
DestroyPDFWindow(pPageView);
}
void CFFL_FormFiller::InvalidateRect(const FX_RECT& rect) {
m_pFormFillEnv->Invalidate(m_pWidget->GetPage(), rect);
}