| // 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_formfield.h" |
| |
| #include <utility> |
| |
| #include "constants/form_flags.h" |
| #include "core/fpdfapi/page/cpdf_page.h" |
| #include "core/fxge/cfx_renderdevice.h" |
| #include "fpdfsdk/cpdfsdk_formfillenvironment.h" |
| #include "fpdfsdk/cpdfsdk_pageview.h" |
| #include "fpdfsdk/cpdfsdk_widget.h" |
| #include "fpdfsdk/formfiller/cffl_privatedata.h" |
| #include "third_party/base/check.h" |
| |
| CFFL_FormField::CFFL_FormField(CPDFSDK_FormFillEnvironment* pFormFillEnv, |
| CPDFSDK_Widget* pWidget) |
| : m_pFormFillEnv(pFormFillEnv), m_pWidget(pWidget) { |
| DCHECK(m_pFormFillEnv); |
| } |
| |
| CFFL_FormField::~CFFL_FormField() { |
| DestroyWindows(); |
| } |
| |
| void CFFL_FormField::DestroyWindows() { |
| while (!m_Maps.empty()) { |
| auto it = m_Maps.begin(); |
| std::unique_ptr<CPWL_Wnd> pWnd = std::move(it->second); |
| m_Maps.erase(it); |
| pWnd->InvalidateProvider(this); |
| pWnd->Destroy(); |
| } |
| } |
| |
| FX_RECT CFFL_FormField::GetViewBBox(const CPDFSDK_PageView* pPageView) { |
| CPWL_Wnd* pWnd = GetPWLWindow(pPageView); |
| CFX_FloatRect rcAnnot = |
| pWnd ? PWLtoFFL(pWnd->GetWindowRect()) : m_pWidget->GetRect(); |
| CFX_FloatRect rcFocus = GetFocusBox(pPageView); |
| |
| CFX_FloatRect rcWin = rcAnnot; |
| if (!rcFocus.IsEmpty()) |
| rcWin.Union(rcFocus); |
| if (!rcWin.IsEmpty()) { |
| rcWin.Inflate(1, 1); |
| rcWin.Normalize(); |
| } |
| |
| return rcWin.GetOuterRect(); |
| } |
| |
| void CFFL_FormField::OnDraw(CPDFSDK_PageView* pPageView, |
| CPDFSDK_Annot* pAnnot, |
| CFX_RenderDevice* pDevice, |
| const CFX_Matrix& mtUser2Device) { |
| CPWL_Wnd* pWnd = GetPWLWindow(pPageView); |
| if (pWnd) { |
| pWnd->DrawAppearance(pDevice, GetCurMatrix() * mtUser2Device); |
| return; |
| } |
| |
| CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot); |
| if (!CFFL_InteractiveFormFiller::IsVisible(pWidget)) |
| return; |
| |
| pWidget->DrawAppearance(pDevice, mtUser2Device, CPDF_Annot::Normal, nullptr); |
| } |
| |
| void CFFL_FormField::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_FormField::OnMouseEnter(CPDFSDK_PageView* pPageView) {} |
| |
| void CFFL_FormField::OnMouseExit(CPDFSDK_PageView* pPageView) { |
| m_pTimer.reset(); |
| DCHECK(m_pWidget); |
| } |
| |
| bool CFFL_FormField::OnLButtonDown(CPDFSDK_PageView* pPageView, |
| CPDFSDK_Annot* pAnnot, |
| uint32_t nFlags, |
| const CFX_PointF& point) { |
| CPWL_Wnd* pWnd = CreateOrUpdatePWLWindow(pPageView); |
| if (!pWnd) |
| return false; |
| |
| m_bValid = true; |
| FX_RECT rect = GetViewBBox(pPageView); |
| InvalidateRect(rect); |
| if (!rect.Contains(static_cast<int>(point.x), static_cast<int>(point.y))) |
| return false; |
| return pWnd->OnLButtonDown(nFlags, FFLtoPWL(point)); |
| } |
| |
| bool CFFL_FormField::OnLButtonUp(CPDFSDK_PageView* pPageView, |
| CPDFSDK_Annot* pAnnot, |
| uint32_t nFlags, |
| const CFX_PointF& point) { |
| CPWL_Wnd* pWnd = GetPWLWindow(pPageView); |
| if (!pWnd) |
| return false; |
| |
| InvalidateRect(GetViewBBox(pPageView)); |
| pWnd->OnLButtonUp(nFlags, FFLtoPWL(point)); |
| return true; |
| } |
| |
| bool CFFL_FormField::OnLButtonDblClk(CPDFSDK_PageView* pPageView, |
| uint32_t nFlags, |
| const CFX_PointF& point) { |
| CPWL_Wnd* pWnd = GetPWLWindow(pPageView); |
| if (!pWnd) |
| return false; |
| |
| pWnd->OnLButtonDblClk(nFlags, FFLtoPWL(point)); |
| return true; |
| } |
| |
| bool CFFL_FormField::OnMouseMove(CPDFSDK_PageView* pPageView, |
| uint32_t nFlags, |
| const CFX_PointF& point) { |
| CPWL_Wnd* pWnd = GetPWLWindow(pPageView); |
| if (!pWnd) |
| return false; |
| |
| pWnd->OnMouseMove(nFlags, FFLtoPWL(point)); |
| return true; |
| } |
| |
| bool CFFL_FormField::OnMouseWheel(CPDFSDK_PageView* pPageView, |
| uint32_t nFlags, |
| const CFX_PointF& point, |
| const CFX_Vector& delta) { |
| if (!IsValid()) |
| return false; |
| |
| CPWL_Wnd* pWnd = CreateOrUpdatePWLWindow(pPageView); |
| return pWnd && pWnd->OnMouseWheel(nFlags, FFLtoPWL(point), delta); |
| } |
| |
| bool CFFL_FormField::OnRButtonDown(CPDFSDK_PageView* pPageView, |
| uint32_t nFlags, |
| const CFX_PointF& point) { |
| CPWL_Wnd* pWnd = CreateOrUpdatePWLWindow(pPageView); |
| return pWnd && pWnd->OnRButtonDown(nFlags, FFLtoPWL(point)); |
| } |
| |
| bool CFFL_FormField::OnRButtonUp(CPDFSDK_PageView* pPageView, |
| uint32_t nFlags, |
| const CFX_PointF& point) { |
| CPWL_Wnd* pWnd = GetPWLWindow(pPageView); |
| return pWnd && pWnd->OnRButtonUp(nFlags, FFLtoPWL(point)); |
| } |
| |
| bool CFFL_FormField::OnKeyDown(uint32_t nKeyCode, uint32_t nFlags) { |
| if (!IsValid()) |
| return false; |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd && pWnd->OnKeyDown(nKeyCode, nFlags); |
| } |
| |
| bool CFFL_FormField::OnChar(CPDFSDK_Annot* pAnnot, |
| uint32_t nChar, |
| uint32_t nFlags) { |
| if (!IsValid()) |
| return false; |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd && pWnd->OnChar(nChar, nFlags); |
| } |
| |
| bool CFFL_FormField::SetIndexSelected(int index, bool selected) { |
| return false; |
| } |
| |
| bool CFFL_FormField::IsIndexSelected(int index) { |
| return false; |
| } |
| |
| WideString CFFL_FormField::GetText() { |
| if (!IsValid()) |
| return WideString(); |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd ? pWnd->GetText() : WideString(); |
| } |
| |
| WideString CFFL_FormField::GetSelectedText() { |
| if (!IsValid()) |
| return WideString(); |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd ? pWnd->GetSelectedText() : WideString(); |
| } |
| |
| void CFFL_FormField::ReplaceSelection(const WideString& text) { |
| if (!IsValid()) |
| return; |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| if (!pWnd) |
| return; |
| |
| pWnd->ReplaceSelection(text); |
| } |
| |
| bool CFFL_FormField::SelectAllText() { |
| if (!IsValid()) |
| return false; |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd && pWnd->SelectAllText(); |
| } |
| |
| bool CFFL_FormField::CanUndo() { |
| if (!IsValid()) |
| return false; |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd && pWnd->CanUndo(); |
| } |
| |
| bool CFFL_FormField::CanRedo() { |
| if (!IsValid()) |
| return false; |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd && pWnd->CanRedo(); |
| } |
| |
| bool CFFL_FormField::Undo() { |
| if (!IsValid()) |
| return false; |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd && pWnd->Undo(); |
| } |
| |
| bool CFFL_FormField::Redo() { |
| if (!IsValid()) |
| return false; |
| |
| CPWL_Wnd* pWnd = GetPWLWindow(GetCurPageView()); |
| return pWnd && pWnd->Redo(); |
| } |
| |
| void CFFL_FormField::SetFocusForAnnot(CPDFSDK_Annot* pAnnot, uint32_t nFlag) { |
| CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot); |
| IPDF_Page* pPage = pWidget->GetPage(); |
| CPDFSDK_PageView* pPageView = m_pFormFillEnv->GetOrCreatePageView(pPage); |
| CPWL_Wnd* pWnd = CreateOrUpdatePWLWindow(pPageView); |
| if (pWnd) |
| pWnd->SetFocus(); |
| |
| m_bValid = true; |
| InvalidateRect(GetViewBBox(pPageView)); |
| } |
| |
| void CFFL_FormField::KillFocusForAnnot(uint32_t nFlag) { |
| if (!IsValid()) |
| return; |
| |
| CPDFSDK_PageView* pPageView = |
| m_pFormFillEnv->GetPageView(m_pWidget->GetPage()); |
| if (!pPageView || !CommitData(pPageView, nFlag)) |
| return; |
| if (CPWL_Wnd* pWnd = GetPWLWindow(pPageView)) |
| pWnd->KillFocus(); |
| |
| bool bDestroyPWLWindow; |
| switch (m_pWidget->GetFieldType()) { |
| case FormFieldType::kPushButton: |
| case FormFieldType::kCheckBox: |
| case FormFieldType::kRadioButton: |
| bDestroyPWLWindow = true; |
| break; |
| default: |
| bDestroyPWLWindow = false; |
| break; |
| } |
| EscapeFiller(pPageView, bDestroyPWLWindow); |
| } |
| |
| bool CFFL_FormField::IsValid() const { |
| return m_bValid; |
| } |
| |
| CPWL_Wnd::CreateParams CFFL_FormField::GetCreateParam() { |
| CPWL_Wnd::CreateParams cp; |
| cp.pProvider.Reset(this); |
| cp.rcRectWnd = GetPDFAnnotRect(); |
| |
| uint32_t dwCreateFlags = PWS_BORDER | PWS_BACKGROUND | PWS_VISIBLE; |
| uint32_t dwFieldFlag = m_pWidget->GetFieldFlags(); |
| if (dwFieldFlag & pdfium::form_flags::kReadOnly) |
| dwCreateFlags |= PWS_READONLY; |
| |
| Optional<FX_COLORREF> color = m_pWidget->GetFillColor(); |
| if (color.has_value()) |
| cp.sBackgroundColor = CFX_Color(color.value()); |
| color = m_pWidget->GetBorderColor(); |
| if (color.has_value()) |
| cp.sBorderColor = CFX_Color(color.value()); |
| |
| cp.sTextColor = CFX_Color(CFX_Color::Type::kGray, 0); |
| |
| color = m_pWidget->GetTextColor(); |
| if (color.has_value()) |
| cp.sTextColor = CFX_Color(color.value()); |
| |
| cp.fFontSize = m_pWidget->GetFontSize(); |
| cp.dwBorderWidth = m_pWidget->GetBorderWidth(); |
| |
| cp.nBorderStyle = m_pWidget->GetBorderStyle(); |
| switch (cp.nBorderStyle) { |
| case BorderStyle::kDash: |
| cp.sDash = CPWL_Dash(3, 3, 0); |
| break; |
| case BorderStyle::kBeveled: |
| case BorderStyle::kInset: |
| cp.dwBorderWidth *= 2; |
| break; |
| default: |
| break; |
| } |
| |
| if (cp.fFontSize <= 0) |
| dwCreateFlags |= PWS_AUTOFONTSIZE; |
| |
| cp.dwFlags = dwCreateFlags; |
| cp.pTimerHandler.Reset(m_pFormFillEnv->GetTimerHandler()); |
| cp.pSystemHandler = m_pFormFillEnv->GetSysHandler(); |
| return cp; |
| } |
| |
| CPWL_Wnd* CFFL_FormField::GetPWLWindow( |
| const CPDFSDK_PageView* pPageView) const { |
| DCHECK(pPageView); |
| auto it = m_Maps.find(pPageView); |
| return it != m_Maps.end() ? it->second.get() : nullptr; |
| } |
| |
| CPWL_Wnd* CFFL_FormField::CreateOrUpdatePWLWindow( |
| const CPDFSDK_PageView* pPageView) { |
| DCHECK(pPageView); |
| CPWL_Wnd* pWnd = GetPWLWindow(pPageView); |
| if (!pWnd) { |
| CPWL_Wnd::CreateParams cp = GetCreateParam(); |
| // TODO(tsepez): maybe pass widget's value age as 4th arg. |
| auto pPrivateData = std::make_unique<CFFL_PrivateData>( |
| m_pWidget.Get(), pPageView, m_pWidget->GetAppearanceAge(), 0); |
| m_Maps[pPageView] = NewPWLWindow(cp, std::move(pPrivateData)); |
| return m_Maps[pPageView].get(); |
| } |
| const auto* pPrivateData = |
| static_cast<const CFFL_PrivateData*>(pWnd->GetAttachedData()); |
| if (pPrivateData->AppearanceAgeEquals(m_pWidget->GetAppearanceAge())) |
| return pWnd; |
| |
| return ResetPWLWindowForValueAge(pPageView, m_pWidget, |
| pPrivateData->GetValueAge()); |
| } |
| |
| void CFFL_FormField::DestroyPWLWindow(const CPDFSDK_PageView* pPageView) { |
| auto it = m_Maps.find(pPageView); |
| if (it == m_Maps.end()) |
| return; |
| |
| std::unique_ptr<CPWL_Wnd> pWnd = std::move(it->second); |
| m_Maps.erase(it); |
| pWnd->Destroy(); |
| } |
| |
| CFX_Matrix CFFL_FormField::GetWindowMatrix( |
| const IPWL_SystemHandler::PerWindowData* pAttached) { |
| const auto* pPrivateData = static_cast<const CFFL_PrivateData*>(pAttached); |
| if (!pPrivateData) |
| return CFX_Matrix(); |
| |
| const CPDFSDK_PageView* pPageView = pPrivateData->GetPageView(); |
| if (!pPageView) |
| return CFX_Matrix(); |
| |
| return GetCurMatrix() * pPageView->GetCurrentMatrix(); |
| } |
| |
| CFX_Matrix CFFL_FormField::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_FormField::GetPDFAnnotRect() 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_FormField::GetCurPageView() { |
| IPDF_Page* pPage = m_pWidget->GetPage(); |
| return m_pFormFillEnv->GetOrCreatePageView(pPage); |
| } |
| |
| CFX_FloatRect CFFL_FormField::GetFocusBox(const CPDFSDK_PageView* pPageView) { |
| CPWL_Wnd* pWnd = GetPWLWindow(pPageView); |
| if (!pWnd) |
| return CFX_FloatRect(); |
| |
| CFX_FloatRect rcFocus = PWLtoFFL(pWnd->GetFocusRect()); |
| return pPageView->GetPDFPage()->GetBBox().Contains(rcFocus) ? rcFocus |
| : CFX_FloatRect(); |
| } |
| |
| CFX_FloatRect CFFL_FormField::FFLtoPWL(const CFX_FloatRect& rect) { |
| return GetCurMatrix().GetInverse().TransformRect(rect); |
| } |
| |
| CFX_FloatRect CFFL_FormField::PWLtoFFL(const CFX_FloatRect& rect) { |
| return GetCurMatrix().TransformRect(rect); |
| } |
| |
| CFX_PointF CFFL_FormField::FFLtoPWL(const CFX_PointF& point) { |
| return GetCurMatrix().GetInverse().Transform(point); |
| } |
| |
| CFX_PointF CFFL_FormField::PWLtoFFL(const CFX_PointF& point) { |
| return GetCurMatrix().Transform(point); |
| } |
| |
| bool CFFL_FormField::CommitData(const CPDFSDK_PageView* pPageView, |
| uint32_t nFlag) { |
| if (!IsDataChanged(pPageView)) |
| return true; |
| |
| CFFL_InteractiveFormFiller* pInteractiveFormFiller = |
| m_pFormFillEnv->GetInteractiveFormFiller(); |
| ObservedPtr<CPDFSDK_Annot> pObserved(m_pWidget.Get()); |
| |
| if (!pInteractiveFormFiller->OnKeyStrokeCommit(&pObserved, pPageView, |
| nFlag)) { |
| if (!pObserved) |
| return false; |
| ResetPWLWindow(pPageView); |
| return true; |
| } |
| if (!pObserved) |
| return false; |
| |
| if (!pInteractiveFormFiller->OnValidate(&pObserved, pPageView, nFlag)) { |
| if (!pObserved) |
| return false; |
| ResetPWLWindow(pPageView); |
| return true; |
| } |
| if (!pObserved) |
| return false; |
| |
| SaveData(pPageView); // may invoking JS to delete this widget. |
| if (!pObserved) |
| return false; |
| |
| pInteractiveFormFiller->OnCalculate(&pObserved, pPageView, nFlag); |
| if (!pObserved) |
| return false; |
| |
| pInteractiveFormFiller->OnFormat(&pObserved, pPageView, nFlag); |
| if (!pObserved) |
| return false; |
| |
| return true; |
| } |
| |
| bool CFFL_FormField::IsDataChanged(const CPDFSDK_PageView* pPageView) { |
| return false; |
| } |
| |
| void CFFL_FormField::SaveData(const CPDFSDK_PageView* pPageView) {} |
| |
| #ifdef PDF_ENABLE_XFA |
| bool CFFL_FormField::IsFieldFull(const CPDFSDK_PageView* pPageView) { |
| return false; |
| } |
| #endif // PDF_ENABLE_XFA |
| |
| void CFFL_FormField::SetChangeMark() { |
| m_pFormFillEnv->OnChange(); |
| } |
| |
| void CFFL_FormField::GetActionData(const CPDFSDK_PageView* pPageView, |
| CPDF_AAction::AActionType type, |
| CPDFSDK_FieldAction& fa) { |
| fa.sValue = m_pWidget->GetValue(); |
| } |
| |
| void CFFL_FormField::SetActionData(const CPDFSDK_PageView* pPageView, |
| CPDF_AAction::AActionType type, |
| const CPDFSDK_FieldAction& fa) {} |
| |
| void CFFL_FormField::SavePWLWindowState(const CPDFSDK_PageView* pPageView) {} |
| |
| void CFFL_FormField::RecreatePWLWindowFromSavedState( |
| const CPDFSDK_PageView* pPageView) {} |
| |
| CPWL_Wnd* CFFL_FormField::ResetPWLWindowForValueAge( |
| const CPDFSDK_PageView* pPageView, |
| CPDFSDK_Widget* pWidget, |
| uint32_t nValueAge) { |
| return nValueAge == pWidget->GetValueAge() ? RestorePWLWindow(pPageView) |
| : ResetPWLWindow(pPageView); |
| } |
| |
| CPWL_Wnd* CFFL_FormField::ResetPWLWindow(const CPDFSDK_PageView* pPageView) { |
| return GetPWLWindow(pPageView); |
| } |
| |
| CPWL_Wnd* CFFL_FormField::RestorePWLWindow(const CPDFSDK_PageView* pPageView) { |
| return GetPWLWindow(pPageView); |
| } |
| |
| void CFFL_FormField::OnTimerFired() {} |
| |
| void CFFL_FormField::EscapeFiller(CPDFSDK_PageView* pPageView, |
| bool bDestroyPWLWindow) { |
| m_bValid = false; |
| |
| InvalidateRect(GetViewBBox(pPageView)); |
| if (bDestroyPWLWindow) |
| DestroyPWLWindow(pPageView); |
| } |
| |
| void CFFL_FormField::InvalidateRect(const FX_RECT& rect) { |
| m_pFormFillEnv->Invalidate(m_pWidget->GetPage(), rect); |
| } |