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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/cpdfsdk_actionhandler.h"
#include <set>
#include <vector>
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfdoc/cpdf_formfield.h"
#include "core/fpdfdoc/cpdf_interactiveform.h"
#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include "fpdfsdk/cpdfsdk_interactiveform.h"
#include "fxjs/ijs_event_context.h"
#include "fxjs/ijs_runtime.h"
#include "third_party/base/logging.h"
#include "third_party/base/stl_util.h"
bool CPDFSDK_ActionHandler::DoAction_DocOpen(
const CPDF_Action& action,
CPDFSDK_FormFillEnvironment* pFormFillEnv) {
std::set<const CPDF_Dictionary*> visited;
return ExecuteDocumentOpenAction(action, pFormFillEnv, &visited);
}
bool CPDFSDK_ActionHandler::DoAction_JavaScript(
const CPDF_Action& JsAction,
WideString csJSName,
CPDFSDK_FormFillEnvironment* pFormFillEnv) {
if (JsAction.GetType() == CPDF_Action::JavaScript) {
WideString swJS = JsAction.GetJavaScript();
if (!swJS.IsEmpty()) {
RunDocumentOpenJavaScript(pFormFillEnv, csJSName, swJS);
return true;
}
}
return false;
}
bool CPDFSDK_ActionHandler::DoAction_FieldJavaScript(
const CPDF_Action& JsAction,
CPDF_AAction::AActionType type,
CPDFSDK_FormFillEnvironment* pFormFillEnv,
CPDF_FormField* pFormField,
CPDFSDK_FieldAction* data) {
ASSERT(pFormFillEnv);
if (pFormFillEnv->IsJSPlatformPresent() &&
JsAction.GetType() == CPDF_Action::JavaScript) {
WideString swJS = JsAction.GetJavaScript();
if (!swJS.IsEmpty()) {
RunFieldJavaScript(pFormFillEnv, pFormField, type, data, swJS);
return true;
}
}
return false;
}
bool CPDFSDK_ActionHandler::DoAction_Link(
const CPDF_Action& action,
CPDF_AAction::AActionType type,
CPDFSDK_FormFillEnvironment* form_fill_env,
int modifiers) {
ASSERT(form_fill_env);
if (!CPDF_AAction::IsUserInput(type))
return false;
switch (action.GetType()) {
case CPDF_Action::GoTo:
DoAction_GoTo(form_fill_env, action);
return true;
case CPDF_Action::URI:
DoAction_URI(form_fill_env, action, modifiers);
return true;
default:
return false;
}
}
bool CPDFSDK_ActionHandler::DoAction_Destination(
const CPDF_Dest& dest,
CPDFSDK_FormFillEnvironment* form_fill_env) {
ASSERT(form_fill_env);
CPDF_Document* document = form_fill_env->GetPDFDocument();
ASSERT(document);
const CPDF_Array* dest_array = dest.GetArray();
std::vector<float> dest_positions;
// |dest_array| index 0 contains destination page details and index 1 contains
// parameter that explains about the rest of |dest_array|.
if (dest_array) {
for (size_t i = 2; i < dest_array->size(); i++)
dest_positions.push_back(dest_array->GetNumberAt(i));
}
form_fill_env->DoGoToAction(dest.GetDestPageIndex(document),
dest.GetZoomMode(), dest_positions.data(),
dest_positions.size());
return true;
}
bool CPDFSDK_ActionHandler::DoAction_Page(
const CPDF_Action& action,
CPDF_AAction::AActionType eType,
CPDFSDK_FormFillEnvironment* pFormFillEnv) {
std::set<const CPDF_Dictionary*> visited;
return ExecuteDocumentPageAction(action, eType, pFormFillEnv, &visited);
}
bool CPDFSDK_ActionHandler::DoAction_Document(
const CPDF_Action& action,
CPDF_AAction::AActionType eType,
CPDFSDK_FormFillEnvironment* pFormFillEnv) {
std::set<const CPDF_Dictionary*> visited;
return ExecuteDocumentPageAction(action, eType, pFormFillEnv, &visited);
}
bool CPDFSDK_ActionHandler::DoAction_Field(
const CPDF_Action& action,
CPDF_AAction::AActionType type,
CPDFSDK_FormFillEnvironment* pFormFillEnv,
CPDF_FormField* pFormField,
CPDFSDK_FieldAction* data) {
std::set<const CPDF_Dictionary*> visited;
return ExecuteFieldAction(action, type, pFormFillEnv, pFormField, data,
&visited);
}
bool CPDFSDK_ActionHandler::ExecuteDocumentOpenAction(
const CPDF_Action& action,
CPDFSDK_FormFillEnvironment* pFormFillEnv,
std::set<const CPDF_Dictionary*>* visited) {
const CPDF_Dictionary* pDict = action.GetDict();
if (pdfium::Contains(*visited, pDict))
return false;
visited->insert(pDict);
ASSERT(pFormFillEnv);
if (action.GetType() == CPDF_Action::JavaScript) {
if (pFormFillEnv->IsJSPlatformPresent()) {
WideString swJS = action.GetJavaScript();
if (!swJS.IsEmpty())
RunDocumentOpenJavaScript(pFormFillEnv, WideString(), swJS);
}
} else {
DoAction_NoJs(action, CPDF_AAction::AActionType::kDocumentOpen,
pFormFillEnv, /*modifiers=*/0);
}
for (int32_t i = 0, sz = action.GetSubActionsCount(); i < sz; i++) {
CPDF_Action subaction = action.GetSubAction(i);
if (!ExecuteDocumentOpenAction(subaction, pFormFillEnv, visited))
return false;
}
return true;
}
bool CPDFSDK_ActionHandler::ExecuteDocumentPageAction(
const CPDF_Action& action,
CPDF_AAction::AActionType type,
CPDFSDK_FormFillEnvironment* pFormFillEnv,
std::set<const CPDF_Dictionary*>* visited) {
const CPDF_Dictionary* pDict = action.GetDict();
if (pdfium::Contains(*visited, pDict))
return false;
visited->insert(pDict);
ASSERT(pFormFillEnv);
if (action.GetType() == CPDF_Action::JavaScript) {
if (pFormFillEnv->IsJSPlatformPresent()) {
WideString swJS = action.GetJavaScript();
if (!swJS.IsEmpty())
RunDocumentPageJavaScript(pFormFillEnv, type, swJS);
}
} else {
DoAction_NoJs(action, type, pFormFillEnv, /*modifiers=*/0);
}
ASSERT(pFormFillEnv);
for (int32_t i = 0, sz = action.GetSubActionsCount(); i < sz; i++) {
CPDF_Action subaction = action.GetSubAction(i);
if (!ExecuteDocumentPageAction(subaction, type, pFormFillEnv, visited))
return false;
}
return true;
}
bool CPDFSDK_ActionHandler::IsValidField(
CPDFSDK_FormFillEnvironment* pFormFillEnv,
CPDF_Dictionary* pFieldDict) {
ASSERT(pFieldDict);
CPDFSDK_InteractiveForm* pForm = pFormFillEnv->GetInteractiveForm();
CPDF_InteractiveForm* pPDFForm = pForm->GetInteractiveForm();
return !!pPDFForm->GetFieldByDict(pFieldDict);
}
bool CPDFSDK_ActionHandler::ExecuteFieldAction(
const CPDF_Action& action,
CPDF_AAction::AActionType type,
CPDFSDK_FormFillEnvironment* pFormFillEnv,
CPDF_FormField* pFormField,
CPDFSDK_FieldAction* data,
std::set<const CPDF_Dictionary*>* visited) {
const CPDF_Dictionary* pDict = action.GetDict();
if (pdfium::Contains(*visited, pDict))
return false;
visited->insert(pDict);
ASSERT(pFormFillEnv);
if (action.GetType() == CPDF_Action::JavaScript) {
if (pFormFillEnv->IsJSPlatformPresent()) {
WideString swJS = action.GetJavaScript();
if (!swJS.IsEmpty()) {
RunFieldJavaScript(pFormFillEnv, pFormField, type, data, swJS);
if (!IsValidField(pFormFillEnv, pFormField->GetFieldDict()))
return false;
}
}
} else {
DoAction_NoJs(action, type, pFormFillEnv, /*modifiers=*/0);
}
for (int32_t i = 0, sz = action.GetSubActionsCount(); i < sz; i++) {
CPDF_Action subaction = action.GetSubAction(i);
if (!ExecuteFieldAction(subaction, type, pFormFillEnv, pFormField, data,
visited))
return false;
}
return true;
}
void CPDFSDK_ActionHandler::DoAction_NoJs(
const CPDF_Action& action,
CPDF_AAction::AActionType type,
CPDFSDK_FormFillEnvironment* pFormFillEnv,
int modifiers) {
ASSERT(pFormFillEnv);
switch (action.GetType()) {
case CPDF_Action::GoTo:
DoAction_GoTo(pFormFillEnv, action);
break;
case CPDF_Action::URI:
if (CPDF_AAction::IsUserInput(type))
DoAction_URI(pFormFillEnv, action, modifiers);
break;
case CPDF_Action::Hide:
DoAction_Hide(action, pFormFillEnv);
break;
case CPDF_Action::Named:
DoAction_Named(pFormFillEnv, action);
break;
case CPDF_Action::SubmitForm:
if (CPDF_AAction::IsUserInput(type))
DoAction_SubmitForm(action, pFormFillEnv);
break;
case CPDF_Action::ResetForm:
DoAction_ResetForm(action, pFormFillEnv);
break;
case CPDF_Action::JavaScript:
NOTREACHED();
break;
case CPDF_Action::SetOCGState:
case CPDF_Action::Thread:
case CPDF_Action::Sound:
case CPDF_Action::Movie:
case CPDF_Action::Rendition:
case CPDF_Action::Trans:
case CPDF_Action::GoTo3DView:
case CPDF_Action::GoToR:
case CPDF_Action::GoToE:
case CPDF_Action::Launch:
case CPDF_Action::ImportData:
// Unimplemented
break;
default:
break;
}
}
void CPDFSDK_ActionHandler::DoAction_GoTo(
CPDFSDK_FormFillEnvironment* pFormFillEnv,
const CPDF_Action& action) {
ASSERT(action.GetDict());
CPDF_Document* pPDFDocument = pFormFillEnv->GetPDFDocument();
ASSERT(pPDFDocument);
CPDF_Dest MyDest = action.GetDest(pPDFDocument);
DoAction_Destination(MyDest, pFormFillEnv);
}
void CPDFSDK_ActionHandler::DoAction_URI(
CPDFSDK_FormFillEnvironment* pFormFillEnv,
const CPDF_Action& action,
int modifiers) {
ASSERT(action.GetDict());
ByteString sURI = action.GetURI(pFormFillEnv->GetPDFDocument());
pFormFillEnv->DoURIAction(sURI.c_str(), modifiers);
}
void CPDFSDK_ActionHandler::DoAction_Named(
CPDFSDK_FormFillEnvironment* pFormFillEnv,
const CPDF_Action& action) {
ASSERT(action.GetDict());
ByteString csName = action.GetNamedAction();
pFormFillEnv->ExecuteNamedAction(csName.c_str());
}
void CPDFSDK_ActionHandler::RunFieldJavaScript(
CPDFSDK_FormFillEnvironment* pFormFillEnv,
CPDF_FormField* pFormField,
CPDF_AAction::AActionType type,
CPDFSDK_FieldAction* data,
const WideString& script) {
ASSERT(type != CPDF_AAction::kCalculate);
ASSERT(type != CPDF_AAction::kFormat);
RunScript(pFormFillEnv, script,
[type, data, pFormField](IJS_EventContext* context) {
switch (type) {
case CPDF_AAction::kCursorEnter:
context->OnField_MouseEnter(data->bModifier, data->bShift,
pFormField);
break;
case CPDF_AAction::kCursorExit:
context->OnField_MouseExit(data->bModifier, data->bShift,
pFormField);
break;
case CPDF_AAction::kButtonDown:
context->OnField_MouseDown(data->bModifier, data->bShift,
pFormField);
break;
case CPDF_AAction::kButtonUp:
context->OnField_MouseUp(data->bModifier, data->bShift,
pFormField);
break;
case CPDF_AAction::kGetFocus:
context->OnField_Focus(data->bModifier, data->bShift,
pFormField, &data->sValue);
break;
case CPDF_AAction::kLoseFocus:
context->OnField_Blur(data->bModifier, data->bShift,
pFormField, &data->sValue);
break;
case CPDF_AAction::kKeyStroke:
context->OnField_Keystroke(
&data->sChange, data->sChangeEx, data->bKeyDown,
data->bModifier, &data->nSelEnd, &data->nSelStart,
data->bShift, pFormField, &data->sValue,
data->bWillCommit, data->bFieldFull, &data->bRC);
break;
case CPDF_AAction::kValidate:
context->OnField_Validate(&data->sChange, data->sChangeEx,
data->bKeyDown, data->bModifier,
data->bShift, pFormField,
&data->sValue, &data->bRC);
break;
default:
NOTREACHED();
break;
}
});
}
void CPDFSDK_ActionHandler::RunDocumentOpenJavaScript(
CPDFSDK_FormFillEnvironment* pFormFillEnv,
const WideString& sScriptName,
const WideString& script) {
RunScript(pFormFillEnv, script,
[pFormFillEnv, sScriptName](IJS_EventContext* context) {
context->OnDoc_Open(pFormFillEnv, sScriptName);
});
}
void CPDFSDK_ActionHandler::RunDocumentPageJavaScript(
CPDFSDK_FormFillEnvironment* pFormFillEnv,
CPDF_AAction::AActionType type,
const WideString& script) {
RunScript(pFormFillEnv, script,
[type, pFormFillEnv](IJS_EventContext* context) {
switch (type) {
case CPDF_AAction::kOpenPage:
context->OnPage_Open(pFormFillEnv);
break;
case CPDF_AAction::kClosePage:
context->OnPage_Close(pFormFillEnv);
break;
case CPDF_AAction::kCloseDocument:
context->OnDoc_WillClose(pFormFillEnv);
break;
case CPDF_AAction::kSaveDocument:
context->OnDoc_WillSave(pFormFillEnv);
break;
case CPDF_AAction::kDocumentSaved:
context->OnDoc_DidSave(pFormFillEnv);
break;
case CPDF_AAction::kPrintDocument:
context->OnDoc_WillPrint(pFormFillEnv);
break;
case CPDF_AAction::kDocumentPrinted:
context->OnDoc_DidPrint(pFormFillEnv);
break;
case CPDF_AAction::kPageVisible:
context->OnPage_InView(pFormFillEnv);
break;
case CPDF_AAction::kPageInvisible:
context->OnPage_OutView(pFormFillEnv);
break;
default:
NOTREACHED();
break;
}
});
}
bool CPDFSDK_ActionHandler::DoAction_Hide(
const CPDF_Action& action,
CPDFSDK_FormFillEnvironment* pFormFillEnv) {
CPDFSDK_InteractiveForm* pForm = pFormFillEnv->GetInteractiveForm();
if (pForm->DoAction_Hide(action)) {
pFormFillEnv->SetChangeMark();
return true;
}
return false;
}
bool CPDFSDK_ActionHandler::DoAction_SubmitForm(
const CPDF_Action& action,
CPDFSDK_FormFillEnvironment* pFormFillEnv) {
CPDFSDK_InteractiveForm* pForm = pFormFillEnv->GetInteractiveForm();
return pForm->DoAction_SubmitForm(action);
}
void CPDFSDK_ActionHandler::DoAction_ResetForm(
const CPDF_Action& action,
CPDFSDK_FormFillEnvironment* pFormFillEnv) {
CPDFSDK_InteractiveForm* pForm = pFormFillEnv->GetInteractiveForm();
pForm->DoAction_ResetForm(action);
}
void CPDFSDK_ActionHandler::RunScript(CPDFSDK_FormFillEnvironment* pFormFillEnv,
const WideString& script,
const RunScriptCallback& cb) {
IJS_Runtime::ScopedEventContext pContext(pFormFillEnv->GetIJSRuntime());
cb(pContext.Get());
pContext->RunScript(script);
// TODO(dsinclair): Return error if RunScript returns a IJS_Runtime::JS_Error.
}