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// 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_xfawidgethandler.h"
#include "core/fpdfdoc/cpdf_interform.h"
#include "fpdfsdk/cpdfsdk_annot.h"
#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include "fpdfsdk/cpdfsdk_interform.h"
#include "fpdfsdk/cpdfsdk_pageview.h"
#include "fpdfsdk/cpdfsdk_xfawidget.h"
#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
#include "xfa/fwl/cfwl_app.h"
#include "xfa/fwl/fwl_widgethit.h"
#include "xfa/fxfa/cxfa_ffdocview.h"
#include "xfa/fxfa/cxfa_ffpageview.h"
#include "xfa/fxfa/cxfa_ffwidget.h"
#include "xfa/fxfa/cxfa_ffwidgethandler.h"
#include "xfa/fxfa/fxfa_basic.h"
#include "xfa/fxfa/parser/cxfa_node.h"
#include "xfa/fxgraphics/cxfa_graphics.h"
CPDFSDK_XFAWidgetHandler::CPDFSDK_XFAWidgetHandler(
CPDFSDK_FormFillEnvironment* pFormFillEnv)
: m_pFormFillEnv(pFormFillEnv) {}
CPDFSDK_XFAWidgetHandler::~CPDFSDK_XFAWidgetHandler() {}
bool CPDFSDK_XFAWidgetHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
return !!pAnnot->GetXFAWidget();
}
CPDFSDK_Annot* CPDFSDK_XFAWidgetHandler::NewAnnot(CPDF_Annot* pAnnot,
CPDFSDK_PageView* pPage) {
return nullptr;
}
CPDFSDK_Annot* CPDFSDK_XFAWidgetHandler::NewAnnot(CXFA_FFWidget* pAnnot,
CPDFSDK_PageView* pPage) {
CPDFSDK_InterForm* pInterForm = m_pFormFillEnv->GetInterForm();
CPDFSDK_XFAWidget* pWidget = new CPDFSDK_XFAWidget(pAnnot, pPage, pInterForm);
pInterForm->AddXFAMap(pAnnot, pWidget);
return pWidget;
}
void CPDFSDK_XFAWidgetHandler::OnDraw(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
CFX_RenderDevice* pDevice,
CFX_Matrix* pUser2Device,
bool bDrawAnnots) {
ASSERT(pPageView);
ASSERT(pAnnot);
CXFA_Graphics gs(pDevice);
CFX_Matrix mt = *pUser2Device;
bool bIsHighlight = false;
if (pPageView->GetFormFillEnv()->GetFocusAnnot() != pAnnot)
bIsHighlight = true;
GetXFAWidgetHandler(pAnnot)->RenderWidget(pAnnot->GetXFAWidget(), &gs, mt,
bIsHighlight);
// to do highlight and shadow
}
void CPDFSDK_XFAWidgetHandler::OnLoad(CPDFSDK_Annot* pAnnot) {}
void CPDFSDK_XFAWidgetHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) {
CPDFSDK_XFAWidget* pWidget = ToXFAWidget(pAnnot);
CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm();
pInterForm->RemoveXFAMap(pWidget->GetXFAWidget());
delete pWidget;
}
CFX_FloatRect CPDFSDK_XFAWidgetHandler::GetViewBBox(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot) {
CXFA_Node* node = pAnnot->GetXFAWidget()->GetNode();
ASSERT(node->IsWidgetReady());
CFX_RectF rcBBox;
if (node->GetFFWidgetType() == XFA_FFWidgetType::kSignature) {
rcBBox = pAnnot->GetXFAWidget()->GetBBox(XFA_WidgetStatus_Visible,
CXFA_FFWidget::kDrawFocus);
} else {
rcBBox = pAnnot->GetXFAWidget()->GetBBox(XFA_WidgetStatus_None,
CXFA_FFWidget::kDoNotDrawFocus);
}
CFX_FloatRect rcWidget(rcBBox.left, rcBBox.top, rcBBox.left + rcBBox.width,
rcBBox.top + rcBBox.height);
rcWidget.left -= 1.0f;
rcWidget.right += 1.0f;
rcWidget.bottom -= 1.0f;
rcWidget.top += 1.0f;
return rcWidget;
}
WideString CPDFSDK_XFAWidgetHandler::GetText(CPDFSDK_Annot* pAnnot) {
if (!pAnnot)
return WideString();
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->GetText(pAnnot->GetXFAWidget());
}
WideString CPDFSDK_XFAWidgetHandler::GetSelectedText(CPDFSDK_Annot* pAnnot) {
if (!pAnnot)
return WideString();
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->GetSelectedText(pAnnot->GetXFAWidget());
}
void CPDFSDK_XFAWidgetHandler::ReplaceSelection(CPDFSDK_Annot* pAnnot,
const WideString& text) {
if (!pAnnot)
return;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->PasteText(pAnnot->GetXFAWidget(), text);
}
bool CPDFSDK_XFAWidgetHandler::CanUndo(CPDFSDK_Annot* pAnnot) {
if (!pAnnot)
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->CanUndo(pAnnot->GetXFAWidget());
}
bool CPDFSDK_XFAWidgetHandler::CanRedo(CPDFSDK_Annot* pAnnot) {
if (!pAnnot)
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->CanRedo(pAnnot->GetXFAWidget());
}
bool CPDFSDK_XFAWidgetHandler::Undo(CPDFSDK_Annot* pAnnot) {
if (!pAnnot)
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->Undo(pAnnot->GetXFAWidget());
}
bool CPDFSDK_XFAWidgetHandler::Redo(CPDFSDK_Annot* pAnnot) {
if (!pAnnot)
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->Redo(pAnnot->GetXFAWidget());
}
bool CPDFSDK_XFAWidgetHandler::HitTest(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot* pAnnot,
const CFX_PointF& point) {
if (!pPageView || !pAnnot)
return false;
CPDFSDK_FormFillEnvironment* pFormFillEnv = pPageView->GetFormFillEnv();
if (!pFormFillEnv)
return false;
CPDFXFA_Context* pContext = pFormFillEnv->GetXFAContext();
if (!pContext)
return false;
CXFA_FFDocView* pDocView = pContext->GetXFADocView();
if (!pDocView)
return false;
CXFA_FFWidgetHandler* pWidgetHandler = pDocView->GetWidgetHandler();
if (!pWidgetHandler)
return false;
FWL_WidgetHit dwHitTest =
pWidgetHandler->OnHitTest(pAnnot->GetXFAWidget(), point);
return dwHitTest != FWL_WidgetHit::Unknown;
}
void CPDFSDK_XFAWidgetHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlag) {
if (!pPageView || !(*pAnnot))
return;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
pWidgetHandler->OnMouseEnter((*pAnnot)->GetXFAWidget());
}
void CPDFSDK_XFAWidgetHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlag) {
if (!pPageView || !(*pAnnot))
return;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
pWidgetHandler->OnMouseExit((*pAnnot)->GetXFAWidget());
}
bool CPDFSDK_XFAWidgetHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
if (!pPageView || !(*pAnnot))
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
return pWidgetHandler->OnLButtonDown((*pAnnot)->GetXFAWidget(),
GetFWLFlags(nFlags), point);
}
bool CPDFSDK_XFAWidgetHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
if (!pPageView || !(*pAnnot))
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
return pWidgetHandler->OnLButtonUp((*pAnnot)->GetXFAWidget(),
GetFWLFlags(nFlags), point);
}
bool CPDFSDK_XFAWidgetHandler::OnLButtonDblClk(
CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
if (!pPageView || !(*pAnnot))
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
return pWidgetHandler->OnLButtonDblClk((*pAnnot)->GetXFAWidget(),
GetFWLFlags(nFlags), point);
}
bool CPDFSDK_XFAWidgetHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
if (!pPageView || !(*pAnnot))
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
return pWidgetHandler->OnMouseMove((*pAnnot)->GetXFAWidget(),
GetFWLFlags(nFlags), point);
}
bool CPDFSDK_XFAWidgetHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
short zDelta,
const CFX_PointF& point) {
if (!pPageView || !(*pAnnot))
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
return pWidgetHandler->OnMouseWheel((*pAnnot)->GetXFAWidget(),
GetFWLFlags(nFlags), zDelta, point);
}
bool CPDFSDK_XFAWidgetHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
if (!pPageView || !(*pAnnot))
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
return pWidgetHandler->OnRButtonDown((*pAnnot)->GetXFAWidget(),
GetFWLFlags(nFlags), point);
}
bool CPDFSDK_XFAWidgetHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
if (!pPageView || !(*pAnnot))
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
return pWidgetHandler->OnRButtonUp((*pAnnot)->GetXFAWidget(),
GetFWLFlags(nFlags), point);
}
bool CPDFSDK_XFAWidgetHandler::OnRButtonDblClk(
CPDFSDK_PageView* pPageView,
CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlags,
const CFX_PointF& point) {
if (!pPageView || !(*pAnnot))
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot->Get());
return pWidgetHandler->OnRButtonDblClk((*pAnnot)->GetXFAWidget(),
GetFWLFlags(nFlags), point);
}
bool CPDFSDK_XFAWidgetHandler::OnChar(CPDFSDK_Annot* pAnnot,
uint32_t nChar,
uint32_t nFlags) {
if (!pAnnot)
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->OnChar(pAnnot->GetXFAWidget(), nChar,
GetFWLFlags(nFlags));
}
bool CPDFSDK_XFAWidgetHandler::OnKeyDown(CPDFSDK_Annot* pAnnot,
int nKeyCode,
int nFlag) {
if (!pAnnot)
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->OnKeyDown(pAnnot->GetXFAWidget(), nKeyCode,
GetFWLFlags(nFlag));
}
bool CPDFSDK_XFAWidgetHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
int nKeyCode,
int nFlag) {
if (!pAnnot)
return false;
CXFA_FFWidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
return pWidgetHandler->OnKeyUp(pAnnot->GetXFAWidget(), nKeyCode,
GetFWLFlags(nFlag));
}
bool CPDFSDK_XFAWidgetHandler::OnSetFocus(CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlag) {
return true;
}
bool CPDFSDK_XFAWidgetHandler::OnKillFocus(CPDFSDK_Annot::ObservedPtr* pAnnot,
uint32_t nFlag) {
CXFA_FFWidget* hWidget = *pAnnot ? (*pAnnot)->GetXFAWidget() : nullptr;
if (!hWidget)
return true;
CXFA_FFPageView* pXFAPageView = hWidget->GetPageView();
if (!pXFAPageView)
return true;
pXFAPageView->GetDocView()->SetFocus(nullptr);
return true;
}
bool CPDFSDK_XFAWidgetHandler::OnXFAChangedFocus(
CPDFSDK_Annot::ObservedPtr* pOldAnnot,
CPDFSDK_Annot::ObservedPtr* pNewAnnot) {
CXFA_FFWidgetHandler* pWidgetHandler = nullptr;
if (*pOldAnnot)
pWidgetHandler = GetXFAWidgetHandler(pOldAnnot->Get());
else if (*pNewAnnot)
pWidgetHandler = GetXFAWidgetHandler(pNewAnnot->Get());
if (!pWidgetHandler)
return true;
CXFA_FFWidget* hWidget = *pNewAnnot ? (*pNewAnnot)->GetXFAWidget() : nullptr;
if (!hWidget)
return true;
CXFA_FFPageView* pXFAPageView = hWidget->GetPageView();
if (!pXFAPageView)
return true;
bool bRet = pXFAPageView->GetDocView()->SetFocus(hWidget);
if (pXFAPageView->GetDocView()->GetFocusWidget() == hWidget)
bRet = true;
return bRet;
}
CXFA_FFWidgetHandler* CPDFSDK_XFAWidgetHandler::GetXFAWidgetHandler(
CPDFSDK_Annot* pAnnot) {
if (!pAnnot)
return nullptr;
CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
if (!pPageView)
return nullptr;
CPDFSDK_FormFillEnvironment* pFormFillEnv = pPageView->GetFormFillEnv();
if (!pFormFillEnv)
return nullptr;
CPDFXFA_Context* pDoc = pFormFillEnv->GetXFAContext();
if (!pDoc)
return nullptr;
CXFA_FFDocView* pDocView = pDoc->GetXFADocView();
if (!pDocView)
return nullptr;
return pDocView->GetWidgetHandler();
}
uint32_t CPDFSDK_XFAWidgetHandler::GetFWLFlags(uint32_t dwFlag) {
uint32_t dwFWLFlag = 0;
if (dwFlag & FWL_EVENTFLAG_ControlKey)
dwFWLFlag |= FWL_KEYFLAG_Ctrl;
if (dwFlag & FWL_EVENTFLAG_LeftButtonDown)
dwFWLFlag |= FWL_KEYFLAG_LButton;
if (dwFlag & FWL_EVENTFLAG_MiddleButtonDown)
dwFWLFlag |= FWL_KEYFLAG_MButton;
if (dwFlag & FWL_EVENTFLAG_RightButtonDown)
dwFWLFlag |= FWL_KEYFLAG_RButton;
if (dwFlag & FWL_EVENTFLAG_ShiftKey)
dwFWLFlag |= FWL_KEYFLAG_Shift;
if (dwFlag & FWL_EVENTFLAG_AltKey)
dwFWLFlag |= FWL_KEYFLAG_Alt;
return dwFWLFlag;
}