1// Copyright 2014 PDFium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7#include "fpdfsdk/pwl/cpwl_list_box.h" 8 9#include <sstream> 10 11#include "core/fxge/cfx_renderdevice.h" 12#include "fpdfsdk/pwl/cpwl_edit.h" 13#include "fpdfsdk/pwl/cpwl_edit_ctrl.h" 14#include "fpdfsdk/pwl/cpwl_edit_impl.h" 15#include "fpdfsdk/pwl/cpwl_list_impl.h" 16#include "fpdfsdk/pwl/cpwl_scroll_bar.h" 17#include "fpdfsdk/pwl/cpwl_wnd.h" 18#include "public/fpdf_fwlevent.h" 19#include "third_party/base/ptr_util.h" 20 21CPWL_List_Notify::CPWL_List_Notify(CPWL_ListBox* pList) : m_pList(pList) { 22 ASSERT(m_pList); 23} 24 25CPWL_List_Notify::~CPWL_List_Notify() {} 26 27void CPWL_List_Notify::IOnSetScrollInfoY(float fPlateMin, 28 float fPlateMax, 29 float fContentMin, 30 float fContentMax, 31 float fSmallStep, 32 float fBigStep) { 33 PWL_SCROLL_INFO Info; 34 Info.fPlateWidth = fPlateMax - fPlateMin; 35 Info.fContentMin = fContentMin; 36 Info.fContentMax = fContentMax; 37 Info.fSmallStep = fSmallStep; 38 Info.fBigStep = fBigStep; 39 m_pList->SetScrollInfo(Info); 40 41 CPWL_ScrollBar* pScroll = m_pList->GetVScrollBar(); 42 if (!pScroll) 43 return; 44 45 if (IsFloatBigger(Info.fPlateWidth, Info.fContentMax - Info.fContentMin) || 46 IsFloatEqual(Info.fPlateWidth, Info.fContentMax - Info.fContentMin)) { 47 if (pScroll->IsVisible()) { 48 pScroll->SetVisible(false); 49 m_pList->RePosChildWnd(); 50 } 51 } else { 52 if (!pScroll->IsVisible()) { 53 pScroll->SetVisible(true); 54 m_pList->RePosChildWnd(); 55 } 56 } 57} 58 59void CPWL_List_Notify::IOnSetScrollPosY(float fy) { 60 m_pList->SetScrollPosition(fy); 61} 62 63void CPWL_List_Notify::IOnInvalidateRect(CFX_FloatRect* pRect) { 64 m_pList->InvalidateRect(pRect); 65} 66 67CPWL_ListBox::CPWL_ListBox() 68 : m_pList(new CPWL_ListCtrl), 69 m_bMouseDown(false), 70 m_bHoverSel(false), 71 m_pFillerNotify(nullptr) {} 72 73CPWL_ListBox::~CPWL_ListBox() {} 74 75ByteString CPWL_ListBox::GetClassName() const { 76 return "CPWL_ListBox"; 77} 78 79void CPWL_ListBox::OnCreated() { 80 m_pList->SetFontMap(GetFontMap()); 81 m_pListNotify = pdfium::MakeUnique<CPWL_List_Notify>(this); 82 m_pList->SetNotify(m_pListNotify.get()); 83 84 SetHoverSel(HasFlag(PLBS_HOVERSEL)); 85 m_pList->SetMultipleSel(HasFlag(PLBS_MULTIPLESEL)); 86 m_pList->SetFontSize(GetCreationParams().fFontSize); 87 88 m_bHoverSel = HasFlag(PLBS_HOVERSEL); 89} 90 91void CPWL_ListBox::OnDestroy() { 92 // Make sure the notifier is removed from the list as we are about to 93 // destroy the notifier and don't want to leave a dangling pointer. 94 m_pList->SetNotify(nullptr); 95 m_pListNotify.reset(); 96} 97 98void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice, 99 const CFX_Matrix& mtUser2Device) { 100 CPWL_Wnd::DrawThisAppearance(pDevice, mtUser2Device); 101 102 CFX_FloatRect rcPlate = m_pList->GetPlateRect(); 103 CFX_FloatRect rcList = GetListRect(); 104 CFX_FloatRect rcClient = GetClientRect(); 105 106 for (int32_t i = 0, sz = m_pList->GetCount(); i < sz; i++) { 107 CFX_FloatRect rcItem = m_pList->GetItemRect(i); 108 if (rcItem.bottom > rcPlate.top || rcItem.top < rcPlate.bottom) 109 continue; 110 111 CFX_PointF ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f); 112 if (CPWL_EditImpl* pEdit = m_pList->GetItemEdit(i)) { 113 CFX_FloatRect rcContent = pEdit->GetContentRect(); 114 if (rcContent.Width() > rcClient.Width()) 115 rcItem.Intersect(rcList); 116 else 117 rcItem.Intersect(rcClient); 118 } 119 120 if (m_pList->IsItemSelected(i)) { 121 CFX_SystemHandler* pSysHandler = GetSystemHandler(); 122 if (pSysHandler && pSysHandler->IsSelectionImplemented()) { 123 CPWL_EditImpl::DrawEdit(pDevice, mtUser2Device, m_pList->GetItemEdit(i), 124 GetTextColor().ToFXColor(255), rcList, ptOffset, 125 nullptr, pSysHandler, m_pFormFiller.Get()); 126 pSysHandler->OutputSelectedRect(m_pFormFiller.Get(), rcItem); 127 } else { 128 pDevice->DrawFillRect(&mtUser2Device, rcItem, 129 ArgbEncode(255, 0, 51, 113)); 130 CPWL_EditImpl::DrawEdit(pDevice, mtUser2Device, m_pList->GetItemEdit(i), 131 ArgbEncode(255, 255, 255, 255), rcList, 132 ptOffset, nullptr, pSysHandler, 133 m_pFormFiller.Get()); 134 } 135 } else { 136 CFX_SystemHandler* pSysHandler = GetSystemHandler(); 137 CPWL_EditImpl::DrawEdit(pDevice, mtUser2Device, m_pList->GetItemEdit(i), 138 GetTextColor().ToFXColor(255), rcList, ptOffset, 139 nullptr, pSysHandler, nullptr); 140 } 141 } 142} 143 144bool CPWL_ListBox::OnKeyDown(uint16_t nChar, uint32_t nFlag) { 145 CPWL_Wnd::OnKeyDown(nChar, nFlag); 146 147 switch (nChar) { 148 default: 149 return false; 150 case FWL_VKEY_Up: 151 case FWL_VKEY_Down: 152 case FWL_VKEY_Home: 153 case FWL_VKEY_Left: 154 case FWL_VKEY_End: 155 case FWL_VKEY_Right: 156 break; 157 } 158 159 switch (nChar) { 160 case FWL_VKEY_Up: 161 m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 162 break; 163 case FWL_VKEY_Down: 164 m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 165 break; 166 case FWL_VKEY_Home: 167 m_pList->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 168 break; 169 case FWL_VKEY_Left: 170 m_pList->OnVK_LEFT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 171 break; 172 case FWL_VKEY_End: 173 m_pList->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 174 break; 175 case FWL_VKEY_Right: 176 m_pList->OnVK_RIGHT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 177 break; 178 case FWL_VKEY_Delete: 179 break; 180 } 181 OnNotifySelectionChanged(true, nFlag); 182 return true; 183} 184 185bool CPWL_ListBox::OnChar(uint16_t nChar, uint32_t nFlag) { 186 CPWL_Wnd::OnChar(nChar, nFlag); 187 188 if (!m_pList->OnChar(nChar, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag))) 189 return false; 190 191 OnNotifySelectionChanged(true, nFlag); 192 return true; 193} 194 195bool CPWL_ListBox::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) { 196 CPWL_Wnd::OnLButtonDown(point, nFlag); 197 198 if (ClientHitTest(point)) { 199 m_bMouseDown = true; 200 SetFocus(); 201 SetCapture(); 202 203 m_pList->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 204 } 205 206 return true; 207} 208 209bool CPWL_ListBox::OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) { 210 CPWL_Wnd::OnLButtonUp(point, nFlag); 211 212 if (m_bMouseDown) { 213 ReleaseCapture(); 214 m_bMouseDown = false; 215 } 216 OnNotifySelectionChanged(false, nFlag); 217 return true; 218} 219 220void CPWL_ListBox::SetHoverSel(bool bHoverSel) { 221 m_bHoverSel = bHoverSel; 222} 223 224bool CPWL_ListBox::OnMouseMove(const CFX_PointF& point, uint32_t nFlag) { 225 CPWL_Wnd::OnMouseMove(point, nFlag); 226 227 if (m_bHoverSel && !IsCaptureMouse() && ClientHitTest(point)) 228 m_pList->Select(m_pList->GetItemIndex(point)); 229 if (m_bMouseDown) 230 m_pList->OnMouseMove(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 231 232 return true; 233} 234 235void CPWL_ListBox::SetScrollInfo(const PWL_SCROLL_INFO& info) { 236 if (CPWL_Wnd* pChild = GetVScrollBar()) 237 pChild->SetScrollInfo(info); 238} 239 240void CPWL_ListBox::SetScrollPosition(float pos) { 241 if (CPWL_Wnd* pChild = GetVScrollBar()) 242 pChild->SetScrollPosition(pos); 243} 244 245void CPWL_ListBox::ScrollWindowVertically(float pos) { 246 m_pList->SetScrollPos(CFX_PointF(0, pos)); 247} 248 249void CPWL_ListBox::KillFocus() { 250 CPWL_Wnd::KillFocus(); 251} 252 253bool CPWL_ListBox::RePosChildWnd() { 254 if (!CPWL_Wnd::RePosChildWnd()) 255 return false; 256 257 m_pList->SetPlateRect(GetListRect()); 258 return true; 259} 260 261bool CPWL_ListBox::OnNotifySelectionChanged(bool bKeyDown, uint32_t nFlag) { 262 if (!m_pFillerNotify) 263 return false; 264 265 CPWL_Wnd::ObservedPtr thisObserved(this); 266 267 WideString swChange = GetText(); 268 WideString strChangeEx; 269 int nSelStart = 0; 270 int nSelEnd = swChange.GetLength(); 271 bool bRC; 272 bool bExit; 273 std::tie(bRC, bExit) = m_pFillerNotify->OnBeforeKeyStroke( 274 GetAttachedData(), swChange, strChangeEx, nSelStart, nSelEnd, bKeyDown, 275 nFlag); 276 277 if (!thisObserved) 278 return false; 279 280 return bExit; 281} 282 283CFX_FloatRect CPWL_ListBox::GetFocusRect() const { 284 if (m_pList->IsMultipleSel()) { 285 CFX_FloatRect rcCaret = m_pList->GetItemRect(m_pList->GetCaret()); 286 rcCaret.Intersect(GetClientRect()); 287 return rcCaret; 288 } 289 290 return CPWL_Wnd::GetFocusRect(); 291} 292 293void CPWL_ListBox::AddString(const WideString& str) { 294 m_pList->AddString(str); 295} 296 297WideString CPWL_ListBox::GetText() const { 298 return m_pList->GetText(); 299} 300 301void CPWL_ListBox::SetFontSize(float fFontSize) { 302 m_pList->SetFontSize(fFontSize); 303} 304 305float CPWL_ListBox::GetFontSize() const { 306 return m_pList->GetFontSize(); 307} 308 309void CPWL_ListBox::Select(int32_t nItemIndex) { 310 m_pList->Select(nItemIndex); 311} 312 313void CPWL_ListBox::SetCaret(int32_t nItemIndex) { 314 m_pList->SetCaret(nItemIndex); 315} 316 317void CPWL_ListBox::SetTopVisibleIndex(int32_t nItemIndex) { 318 m_pList->SetTopItem(nItemIndex); 319} 320 321void CPWL_ListBox::ScrollToListItem(int32_t nItemIndex) { 322 m_pList->ScrollToListItem(nItemIndex); 323} 324 325void CPWL_ListBox::ResetContent() { 326 m_pList->Empty(); 327} 328 329void CPWL_ListBox::Reset() { 330 m_pList->Cancel(); 331} 332 333bool CPWL_ListBox::IsMultipleSel() const { 334 return m_pList->IsMultipleSel(); 335} 336 337int32_t CPWL_ListBox::GetCaretIndex() const { 338 return m_pList->GetCaret(); 339} 340 341int32_t CPWL_ListBox::GetCurSel() const { 342 return m_pList->GetSelect(); 343} 344 345bool CPWL_ListBox::IsItemSelected(int32_t nItemIndex) const { 346 return m_pList->IsItemSelected(nItemIndex); 347} 348 349int32_t CPWL_ListBox::GetTopVisibleIndex() const { 350 m_pList->ScrollToListItem(m_pList->GetFirstSelected()); 351 return m_pList->GetTopItem(); 352} 353 354int32_t CPWL_ListBox::GetCount() const { 355 return m_pList->GetCount(); 356} 357 358int32_t CPWL_ListBox::FindNext(int32_t nIndex, wchar_t nChar) const { 359 return m_pList->FindNext(nIndex, nChar); 360} 361 362CFX_FloatRect CPWL_ListBox::GetContentRect() const { 363 return m_pList->GetContentRect(); 364} 365 366float CPWL_ListBox::GetFirstHeight() const { 367 return m_pList->GetFirstHeight(); 368} 369 370CFX_FloatRect CPWL_ListBox::GetListRect() const { 371 float width = static_cast<float>(GetBorderWidth() + GetInnerBorderWidth()); 372 return GetWindowRect().GetDeflated(width, width); 373} 374 375bool CPWL_ListBox::OnMouseWheel(short zDelta, 376 const CFX_PointF& point, 377 uint32_t nFlag) { 378 if (zDelta < 0) 379 m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 380 else 381 m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); 382 383 OnNotifySelectionChanged(false, nFlag); 384 return true; 385} 386