diff options
Diffstat (limited to 'xfa/fxfa/cxfa_fflistbox.cpp')
| -rw-r--r-- | xfa/fxfa/cxfa_fflistbox.cpp | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/xfa/fxfa/cxfa_fflistbox.cpp b/xfa/fxfa/cxfa_fflistbox.cpp new file mode 100644 index 0000000000..c086953a29 --- /dev/null +++ b/xfa/fxfa/cxfa_fflistbox.cpp @@ -0,0 +1,210 @@ +// Copyright 2017 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 "xfa/fxfa/cxfa_fflistbox.h" + +#include <algorithm> +#include <utility> +#include <vector> + +#include "xfa/fwl/cfwl_listbox.h" +#include "xfa/fwl/cfwl_notedriver.h" +#include "xfa/fwl/cfwl_widget.h" +#include "xfa/fxfa/cxfa_eventparam.h" + +namespace { + +CFWL_ListBox* ToListBox(CFWL_Widget* widget) { + return static_cast<CFWL_ListBox*>(widget); +} + +} // namespace + +CXFA_FFListBox::CXFA_FFListBox(CXFA_WidgetAcc* pDataAcc) + : CXFA_FFField(pDataAcc), m_pOldDelegate(nullptr) {} + +CXFA_FFListBox::~CXFA_FFListBox() { + if (!m_pNormalWidget) + return; + + CFWL_NoteDriver* pNoteDriver = + m_pNormalWidget->GetOwnerApp()->GetNoteDriver(); + pNoteDriver->UnregisterEventTarget(m_pNormalWidget.get()); +} + +bool CXFA_FFListBox::LoadWidget() { + auto pNew = pdfium::MakeUnique<CFWL_ListBox>( + GetFWLApp(), pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr); + CFWL_ListBox* pListBox = pNew.get(); + pListBox->ModifyStyles(FWL_WGTSTYLE_VScroll | FWL_WGTSTYLE_NoBackground, + 0xFFFFFFFF); + m_pNormalWidget = std::move(pNew); + m_pNormalWidget->SetLayoutItem(this); + + CFWL_NoteDriver* pNoteDriver = + m_pNormalWidget->GetOwnerApp()->GetNoteDriver(); + pNoteDriver->RegisterEventTarget(m_pNormalWidget.get(), + m_pNormalWidget.get()); + m_pOldDelegate = m_pNormalWidget->GetDelegate(); + m_pNormalWidget->SetDelegate(this); + m_pNormalWidget->LockUpdate(); + + for (const auto& label : m_pDataAcc->GetChoiceListItems(false)) + pListBox->AddString(label.AsStringC()); + + uint32_t dwExtendedStyle = FWL_STYLEEXT_LTB_ShowScrollBarFocus; + if (m_pDataAcc->GetChoiceListOpen() == XFA_ATTRIBUTEENUM_MultiSelect) + dwExtendedStyle |= FWL_STYLEEXT_LTB_MultiSelection; + + dwExtendedStyle |= GetAlignment(); + m_pNormalWidget->ModifyStylesEx(dwExtendedStyle, 0xFFFFFFFF); + for (int32_t selected : m_pDataAcc->GetSelectedItems()) + pListBox->SetSelItem(pListBox->GetItem(nullptr, selected), true); + + m_pNormalWidget->UnlockUpdate(); + return CXFA_FFField::LoadWidget(); +} + +bool CXFA_FFListBox::OnKillFocus(CXFA_FFWidget* pNewFocus) { + if (!ProcessCommittedData()) + UpdateFWLData(); + + CXFA_FFField::OnKillFocus(pNewFocus); + return true; +} + +bool CXFA_FFListBox::CommitData() { + auto* pListBox = ToListBox(m_pNormalWidget.get()); + std::vector<int32_t> iSelArray; + int32_t iSels = pListBox->CountSelItems(); + for (int32_t i = 0; i < iSels; ++i) + iSelArray.push_back(pListBox->GetSelIndex(i)); + + m_pDataAcc->SetSelectedItems(iSelArray, true, false, true); + return true; +} + +bool CXFA_FFListBox::IsDataChanged() { + std::vector<int32_t> iSelArray = m_pDataAcc->GetSelectedItems(); + int32_t iOldSels = pdfium::CollectionSize<int32_t>(iSelArray); + auto* pListBox = ToListBox(m_pNormalWidget.get()); + int32_t iSels = pListBox->CountSelItems(); + if (iOldSels != iSels) + return true; + + for (int32_t i = 0; i < iSels; ++i) { + CFWL_ListItem* hlistItem = pListBox->GetItem(nullptr, iSelArray[i]); + if (!(hlistItem->GetStates() & FWL_ITEMSTATE_LTB_Selected)) + return true; + } + return false; +} + +uint32_t CXFA_FFListBox::GetAlignment() { + CXFA_Para para = m_pDataAcc->GetPara(); + if (!para) + return 0; + + uint32_t dwExtendedStyle = 0; + switch (para.GetHorizontalAlign()) { + case XFA_ATTRIBUTEENUM_Center: + dwExtendedStyle |= FWL_STYLEEXT_LTB_CenterAlign; + break; + case XFA_ATTRIBUTEENUM_Justify: + break; + case XFA_ATTRIBUTEENUM_JustifyAll: + break; + case XFA_ATTRIBUTEENUM_Radix: + break; + case XFA_ATTRIBUTEENUM_Right: + dwExtendedStyle |= FWL_STYLEEXT_LTB_RightAlign; + break; + default: + dwExtendedStyle |= FWL_STYLEEXT_LTB_LeftAlign; + break; + } + return dwExtendedStyle; +} + +bool CXFA_FFListBox::UpdateFWLData() { + if (!m_pNormalWidget) + return false; + + auto* pListBox = ToListBox(m_pNormalWidget.get()); + std::vector<int32_t> iSelArray = m_pDataAcc->GetSelectedItems(); + std::vector<CFWL_ListItem*> selItemArray(iSelArray.size()); + std::transform(iSelArray.begin(), iSelArray.end(), selItemArray.begin(), + [pListBox](int32_t val) { return pListBox->GetSelItem(val); }); + + pListBox->SetSelItem(pListBox->GetSelItem(-1), false); + for (CFWL_ListItem* pItem : selItemArray) + pListBox->SetSelItem(pItem, true); + + m_pNormalWidget->Update(); + return true; +} + +void CXFA_FFListBox::OnSelectChanged(CFWL_Widget* pWidget) { + CXFA_EventParam eParam; + eParam.m_eType = XFA_EVENT_Change; + eParam.m_pTarget = m_pDataAcc.Get(); + m_pDataAcc->GetValue(eParam.m_wsPrevText, XFA_VALUEPICTURE_Raw); + + auto* pListBox = ToListBox(m_pNormalWidget.get()); + int32_t iSels = pListBox->CountSelItems(); + if (iSels > 0) { + CFWL_ListItem* item = pListBox->GetSelItem(0); + eParam.m_wsNewText = item ? item->GetText() : L""; + } + m_pDataAcc->ProcessEvent(XFA_ATTRIBUTEENUM_Change, &eParam); +} + +void CXFA_FFListBox::SetItemState(int32_t nIndex, bool bSelected) { + auto* pListBox = ToListBox(m_pNormalWidget.get()); + pListBox->SetSelItem(pListBox->GetSelItem(nIndex), bSelected); + m_pNormalWidget->Update(); + AddInvalidateRect(); +} + +void CXFA_FFListBox::InsertItem(const CFX_WideStringC& wsLabel, + int32_t nIndex) { + CFX_WideString wsTemp(wsLabel); + ToListBox(m_pNormalWidget.get())->AddString(wsTemp.AsStringC()); + m_pNormalWidget->Update(); + AddInvalidateRect(); +} + +void CXFA_FFListBox::DeleteItem(int32_t nIndex) { + auto* pListBox = ToListBox(m_pNormalWidget.get()); + if (nIndex < 0) + pListBox->DeleteAll(); + else + pListBox->DeleteString(pListBox->GetItem(nullptr, nIndex)); + + pListBox->Update(); + AddInvalidateRect(); +} + +void CXFA_FFListBox::OnProcessMessage(CFWL_Message* pMessage) { + m_pOldDelegate->OnProcessMessage(pMessage); +} + +void CXFA_FFListBox::OnProcessEvent(CFWL_Event* pEvent) { + CXFA_FFField::OnProcessEvent(pEvent); + switch (pEvent->GetType()) { + case CFWL_Event::Type::SelectChanged: + OnSelectChanged(m_pNormalWidget.get()); + break; + default: + break; + } + m_pOldDelegate->OnProcessEvent(pEvent); +} + +void CXFA_FFListBox::OnDrawWidget(CXFA_Graphics* pGraphics, + const CFX_Matrix* pMatrix) { + m_pOldDelegate->OnDrawWidget(pGraphics, pMatrix); +} |