281 lines
8.1 KiB
C++
281 lines
8.1 KiB
C++
// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "fpdfsdk/formfiller/cffl_combobox.h"
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#include <utility>
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#include "constants/form_flags.h"
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#include "core/fpdfdoc/cba_fontmap.h"
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#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
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#include "fpdfsdk/cpdfsdk_widget.h"
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#include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
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#include "fpdfsdk/pwl/cpwl_combo_box.h"
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#include "third_party/base/ptr_util.h"
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CFFL_ComboBox::CFFL_ComboBox(CPDFSDK_FormFillEnvironment* pApp,
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CPDFSDK_Widget* pWidget)
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: CFFL_TextObject(pApp, pWidget) {
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}
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CFFL_ComboBox::~CFFL_ComboBox() {
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for (const auto& it : m_Maps)
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it.second->InvalidateFocusHandler(this);
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// See comment in cffl_formfiller.h.
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// The font map should be stored somewhere more appropriate so it will live
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// until the PWL_Edit is done with it. pdfium:566
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DestroyWindows();
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}
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CPWL_Wnd::CreateParams CFFL_ComboBox::GetCreateParam() {
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CPWL_Wnd::CreateParams cp = CFFL_TextObject::GetCreateParam();
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if (m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit)
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cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT;
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cp.pFontMap = MaybeCreateFontMap();
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cp.pFocusHandler = this;
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return cp;
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}
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std::unique_ptr<CPWL_Wnd> CFFL_ComboBox::NewPWLWindow(
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const CPWL_Wnd::CreateParams& cp,
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std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData) {
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auto pWnd = pdfium::MakeUnique<CPWL_ComboBox>(cp, std::move(pAttachedData));
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pWnd->AttachFFLData(this);
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pWnd->Realize();
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CFFL_InteractiveFormFiller* pFormFiller =
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m_pFormFillEnv->GetInteractiveFormFiller();
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pWnd->SetFillerNotify(pFormFiller);
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int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
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WideString swText;
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if (nCurSel < 0)
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swText = m_pWidget->GetValue();
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else
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swText = m_pWidget->GetOptionLabel(nCurSel);
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for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++)
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pWnd->AddString(m_pWidget->GetOptionLabel(i));
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pWnd->SetSelect(nCurSel);
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pWnd->SetText(swText);
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return std::move(pWnd);
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}
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bool CFFL_ComboBox::OnChar(CPDFSDK_Annot* pAnnot,
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uint32_t nChar,
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uint32_t nFlags) {
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return CFFL_TextObject::OnChar(pAnnot, nChar, nFlags);
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}
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bool CFFL_ComboBox::IsDataChanged(CPDFSDK_PageView* pPageView) {
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auto* pWnd = GetComboBox(pPageView, false);
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if (!pWnd)
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return false;
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int32_t nCurSel = pWnd->GetSelect();
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if (!(m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit))
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return nCurSel != m_pWidget->GetSelectedIndex(0);
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if (nCurSel >= 0)
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return nCurSel != m_pWidget->GetSelectedIndex(0);
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return pWnd->GetText() != m_pWidget->GetValue();
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}
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void CFFL_ComboBox::SaveData(CPDFSDK_PageView* pPageView) {
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CPWL_ComboBox* pWnd = GetComboBox(pPageView, false);
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if (!pWnd)
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return;
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WideString swText = pWnd->GetText();
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int32_t nCurSel = pWnd->GetSelect();
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bool bSetValue = false;
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if (m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit)
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bSetValue = (nCurSel < 0) || (swText != m_pWidget->GetOptionLabel(nCurSel));
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if (bSetValue) {
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m_pWidget->SetValue(swText, NotificationOption::kDoNotNotify);
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} else {
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m_pWidget->GetSelectedIndex(0);
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m_pWidget->SetOptionSelection(nCurSel, true,
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NotificationOption::kDoNotNotify);
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}
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ObservedPtr<CPDFSDK_Widget> observed_widget(m_pWidget.Get());
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ObservedPtr<CFFL_ComboBox> observed_this(this);
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m_pWidget->ResetFieldAppearance();
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if (!observed_widget)
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return;
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m_pWidget->UpdateField();
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if (!observed_widget || !observed_this)
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return;
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SetChangeMark();
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m_pWidget->GetPDFPage();
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}
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void CFFL_ComboBox::GetActionData(CPDFSDK_PageView* pPageView,
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CPDF_AAction::AActionType type,
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CPDFSDK_FieldAction& fa) {
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switch (type) {
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case CPDF_AAction::kKeyStroke:
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if (CPWL_ComboBox* pComboBox = GetComboBox(pPageView, false)) {
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if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
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fa.bFieldFull = pEdit->IsTextFull();
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int nSelStart = 0;
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int nSelEnd = 0;
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pEdit->GetSelection(nSelStart, nSelEnd);
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fa.nSelEnd = nSelEnd;
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fa.nSelStart = nSelStart;
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fa.sValue = pEdit->GetText();
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fa.sChangeEx = GetSelectExportText();
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if (fa.bFieldFull) {
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fa.sChange.clear();
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fa.sChangeEx.clear();
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}
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}
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}
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break;
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case CPDF_AAction::kValidate:
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if (CPWL_ComboBox* pComboBox = GetComboBox(pPageView, false)) {
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if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
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fa.sValue = pEdit->GetText();
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}
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}
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break;
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case CPDF_AAction::kLoseFocus:
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case CPDF_AAction::kGetFocus:
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fa.sValue = m_pWidget->GetValue();
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break;
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default:
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break;
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}
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}
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void CFFL_ComboBox::SetActionData(CPDFSDK_PageView* pPageView,
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CPDF_AAction::AActionType type,
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const CPDFSDK_FieldAction& fa) {
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switch (type) {
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case CPDF_AAction::kKeyStroke:
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if (CPWL_ComboBox* pComboBox = GetComboBox(pPageView, false)) {
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if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
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pEdit->SetSelection(fa.nSelStart, fa.nSelEnd);
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pEdit->ReplaceSelection(fa.sChange);
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}
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}
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break;
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default:
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break;
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}
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}
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void CFFL_ComboBox::SaveState(CPDFSDK_PageView* pPageView) {
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CPWL_ComboBox* pComboBox = GetComboBox(pPageView, false);
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if (!pComboBox)
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return;
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m_State.nIndex = pComboBox->GetSelect();
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CPWL_Edit* pEdit = pComboBox->GetEdit();
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if (!pEdit)
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return;
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pEdit->GetSelection(m_State.nStart, m_State.nEnd);
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m_State.sValue = pEdit->GetText();
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}
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void CFFL_ComboBox::RestoreState(CPDFSDK_PageView* pPageView) {
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CPWL_ComboBox* pComboBox = GetComboBox(pPageView, true);
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if (!pComboBox)
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return;
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if (m_State.nIndex >= 0) {
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pComboBox->SetSelect(m_State.nIndex);
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return;
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}
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CPWL_Edit* pEdit = pComboBox->GetEdit();
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if (!pEdit)
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return;
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pEdit->SetText(m_State.sValue);
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pEdit->SetSelection(m_State.nStart, m_State.nEnd);
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}
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bool CFFL_ComboBox::SetIndexSelected(int index, bool selected) {
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if (!IsValid() || !selected)
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return false;
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if (index < 0 || index >= m_pWidget->CountOptions())
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return false;
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CPWL_ComboBox* pWnd = GetComboBox(GetCurPageView(true), false);
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if (!pWnd)
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return false;
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pWnd->SetSelect(index);
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return true;
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}
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bool CFFL_ComboBox::IsIndexSelected(int index) {
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if (!IsValid())
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return false;
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if (index < 0 || index >= m_pWidget->CountOptions())
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return false;
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CPWL_ComboBox* pWnd = GetComboBox(GetCurPageView(true), false);
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return pWnd && index == pWnd->GetSelect();
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}
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#ifdef PDF_ENABLE_XFA
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bool CFFL_ComboBox::IsFieldFull(CPDFSDK_PageView* pPageView) {
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CPWL_ComboBox* pComboBox = GetComboBox(pPageView, false);
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if (!pComboBox)
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return false;
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CPWL_Edit* pEdit = pComboBox->GetEdit();
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return pEdit && pEdit->IsTextFull();
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}
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#endif // PDF_ENABLE_XFA
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void CFFL_ComboBox::OnSetFocus(CPWL_Edit* pEdit) {
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pEdit->SetCharSet(FX_CHARSET_ChineseSimplified);
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pEdit->SetReadyToInput();
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WideString wsText = pEdit->GetText();
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int nCharacters = wsText.GetLength();
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ByteString bsUTFText = wsText.ToUTF16LE();
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auto* pBuffer = reinterpret_cast<const unsigned short*>(bsUTFText.c_str());
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m_pFormFillEnv->OnSetFieldInputFocus(pBuffer, nCharacters, true);
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}
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WideString CFFL_ComboBox::GetSelectExportText() {
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WideString swRet;
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CPWL_ComboBox* pComboBox = GetComboBox(GetCurPageView(true), false);
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int nExport = pComboBox ? pComboBox->GetSelect() : -1;
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if (nExport >= 0) {
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if (CPDF_FormField* pFormField = m_pWidget->GetFormField()) {
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swRet = pFormField->GetOptionValue(nExport);
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if (swRet.IsEmpty())
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swRet = pFormField->GetOptionLabel(nExport);
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}
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}
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return swRet;
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}
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CPWL_ComboBox* CFFL_ComboBox::GetComboBox(CPDFSDK_PageView* pPageView,
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bool bNew) {
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return static_cast<CPWL_ComboBox*>(GetPWLWindow(pPageView, bNew));
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}
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