// 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/pdfwindow/cpwl_edit_ctrl.h" #include "core/fpdfdoc/cpvt_section.h" #include "core/fpdfdoc/cpvt_word.h" #include "core/fxge/fx_font.h" #include "fpdfsdk/fxedit/fxet_edit.h" #include "fpdfsdk/pdfwindow/cpwl_caret.h" #include "fpdfsdk/pdfwindow/cpwl_font_map.h" #include "fpdfsdk/pdfwindow/cpwl_scroll_bar.h" #include "fpdfsdk/pdfwindow/cpwl_utils.h" #include "fpdfsdk/pdfwindow/cpwl_wnd.h" #include "public/fpdf_fwlevent.h" CPWL_EditCtrl::CPWL_EditCtrl() : m_pEdit(new CFX_Edit), m_pEditCaret(nullptr), m_bMouseDown(false), m_nCharSet(FX_CHARSET_Default) {} CPWL_EditCtrl::~CPWL_EditCtrl() {} void CPWL_EditCtrl::OnCreate(PWL_CREATEPARAM& cp) { cp.eCursorType = FXCT_VBEAM; } void CPWL_EditCtrl::OnCreated() { SetFontSize(GetCreationParam().fFontSize); m_pEdit->SetFontMap(GetFontMap()); m_pEdit->SetNotify(this); m_pEdit->Initialize(); } bool CPWL_EditCtrl::IsWndHorV() { CFX_Matrix mt = GetWindowMatrix(); return mt.Transform(CFX_PointF(1, 1)).y == mt.Transform(CFX_PointF(0, 1)).y; } void CPWL_EditCtrl::SetCursor() { if (IsValid()) { if (CFX_SystemHandler* pSH = GetSystemHandler()) { if (IsWndHorV()) pSH->SetCursor(FXCT_VBEAM); else pSH->SetCursor(FXCT_HBEAM); } } } CFX_WideString CPWL_EditCtrl::GetSelectedText() { if (m_pEdit) return m_pEdit->GetSelText(); return CFX_WideString(); } void CPWL_EditCtrl::RePosChildWnd() { m_pEdit->SetPlateRect(GetClientRect()); } void CPWL_EditCtrl::SetScrollInfo(const PWL_SCROLL_INFO& info) { if (CPWL_Wnd* pChild = GetVScrollBar()) pChild->SetScrollInfo(info); } void CPWL_EditCtrl::SetScrollPosition(float pos) { if (CPWL_Wnd* pChild = GetVScrollBar()) pChild->SetScrollPosition(pos); } void CPWL_EditCtrl::OnNotify(CPWL_Wnd* pWnd, uint32_t msg, intptr_t wParam, intptr_t lParam) { CPWL_Wnd::OnNotify(pWnd, msg, wParam, lParam); switch (msg) { case PNM_SCROLLWINDOW: { float fPos = *(float*)lParam; switch (wParam) { case SBT_VSCROLL: m_pEdit->SetScrollPos(CFX_PointF(m_pEdit->GetScrollPos().x, fPos)); break; } } break; case PNM_SETCARETINFO: { if (PWL_CARET_INFO* pCaretInfo = (PWL_CARET_INFO*)wParam) { SetCaret(pCaretInfo->bVisible, pCaretInfo->ptHead, pCaretInfo->ptFoot); } } break; } } void CPWL_EditCtrl::CreateChildWnd(const PWL_CREATEPARAM& cp) { if (!IsReadOnly()) CreateEditCaret(cp); } void CPWL_EditCtrl::CreateEditCaret(const PWL_CREATEPARAM& cp) { if (m_pEditCaret) return; m_pEditCaret = new CPWL_Caret; m_pEditCaret->SetInvalidRect(GetClientRect()); PWL_CREATEPARAM ecp = cp; ecp.pParentWnd = this; ecp.dwFlags = PWS_CHILD | PWS_NOREFRESHCLIP; ecp.dwBorderWidth = 0; ecp.nBorderStyle = BorderStyle::SOLID; ecp.rcRectWnd = CFX_FloatRect(); m_pEditCaret->Create(ecp); } void CPWL_EditCtrl::SetFontSize(float fFontSize) { m_pEdit->SetFontSize(fFontSize); } float CPWL_EditCtrl::GetFontSize() const { return m_pEdit->GetFontSize(); } bool CPWL_EditCtrl::OnKeyDown(uint16_t nChar, uint32_t nFlag) { if (m_bMouseDown) return true; bool bRet = CPWL_Wnd::OnKeyDown(nChar, nFlag); // FILTER switch (nChar) { default: return false; case FWL_VKEY_Delete: case FWL_VKEY_Up: case FWL_VKEY_Down: case FWL_VKEY_Left: case FWL_VKEY_Right: case FWL_VKEY_Home: case FWL_VKEY_End: case FWL_VKEY_Insert: case 'C': case 'V': case 'X': case 'A': case 'Z': case 'c': case 'v': case 'x': case 'a': case 'z': break; } if (nChar == FWL_VKEY_Delete && m_pEdit->IsSelected()) nChar = FWL_VKEY_Unknown; switch (nChar) { case FWL_VKEY_Delete: Delete(); return true; case FWL_VKEY_Insert: if (IsSHIFTpressed(nFlag)) PasteText(); return true; case FWL_VKEY_Up: m_pEdit->OnVK_UP(IsSHIFTpressed(nFlag), false); return true; case FWL_VKEY_Down: m_pEdit->OnVK_DOWN(IsSHIFTpressed(nFlag), false); return true; case FWL_VKEY_Left: m_pEdit->OnVK_LEFT(IsSHIFTpressed(nFlag), false); return true; case FWL_VKEY_Right: m_pEdit->OnVK_RIGHT(IsSHIFTpressed(nFlag), false); return true; case FWL_VKEY_Home: m_pEdit->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); return true; case FWL_VKEY_End: m_pEdit->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); return true; case FWL_VKEY_Unknown: if (!IsSHIFTpressed(nFlag)) Clear(); else CutText(); return true; default: break; } return bRet; } bool CPWL_EditCtrl::OnChar(uint16_t nChar, uint32_t nFlag) { if (m_bMouseDown) return true; CPWL_Wnd::OnChar(nChar, nFlag); // FILTER switch (nChar) { case 0x0A: case 0x1B: return false; default: break; } bool bCtrl = IsCTRLpressed(nFlag); bool bAlt = IsALTpressed(nFlag); bool bShift = IsSHIFTpressed(nFlag); uint16_t word = nChar; if (bCtrl && !bAlt) { switch (nChar) { case 'C' - 'A' + 1: CopyText(); return true; case 'V' - 'A' + 1: PasteText(); return true; case 'X' - 'A' + 1: CutText(); return true; case 'A' - 'A' + 1: SelectAll(); return true; case 'Z' - 'A' + 1: if (bShift) Redo(); else Undo(); return true; default: if (nChar < 32) return false; } } if (IsReadOnly()) return true; if (m_pEdit->IsSelected() && word == FWL_VKEY_Back) word = FWL_VKEY_Unknown; Clear(); switch (word) { case FWL_VKEY_Back: Backspace(); break; case FWL_VKEY_Return: InsertReturn(); break; case FWL_VKEY_Unknown: break; default: InsertWord(word, GetCharSet()); break; } return true; } bool CPWL_EditCtrl::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) { CPWL_Wnd::OnLButtonDown(point, nFlag); if (ClientHitTest(point)) { if (m_bMouseDown) InvalidateRect(); m_bMouseDown = true; SetCapture(); m_pEdit->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); } return true; } bool CPWL_EditCtrl::OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) { CPWL_Wnd::OnLButtonUp(point, nFlag); if (m_bMouseDown) { // can receive keybord message if (ClientHitTest(point) && !IsFocused()) SetFocus(); ReleaseCapture(); m_bMouseDown = false; } return true; } bool CPWL_EditCtrl::OnMouseMove(const CFX_PointF& point, uint32_t nFlag) { CPWL_Wnd::OnMouseMove(point, nFlag); if (m_bMouseDown) m_pEdit->OnMouseMove(point, false, false); return true; } void CPWL_EditCtrl::SetEditCaret(bool bVisible) { CFX_PointF ptHead; CFX_PointF ptFoot; if (bVisible) GetCaretInfo(&ptHead, &ptFoot); CPVT_WordPlace wpTemp = m_pEdit->GetCaretWordPlace(); IOnSetCaret(bVisible, ptHead, ptFoot, wpTemp); } void CPWL_EditCtrl::GetCaretInfo(CFX_PointF* ptHead, CFX_PointF* ptFoot) const { CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator(); pIterator->SetAt(m_pEdit->GetCaret()); CPVT_Word word; CPVT_Line line; if (pIterator->GetWord(word)) { ptHead->x = word.ptWord.x + word.fWidth; ptHead->y = word.ptWord.y + word.fAscent; ptFoot->x = word.ptWord.x + word.fWidth; ptFoot->y = word.ptWord.y + word.fDescent; } else if (pIterator->GetLine(line)) { ptHead->x = line.ptLine.x; ptHead->y = line.ptLine.y + line.fLineAscent; ptFoot->x = line.ptLine.x; ptFoot->y = line.ptLine.y + line.fLineDescent; } } void CPWL_EditCtrl::SetCaret(bool bVisible, const CFX_PointF& ptHead, const CFX_PointF& ptFoot) { if (m_pEditCaret) { if (!IsFocused() || m_pEdit->IsSelected()) bVisible = false; m_pEditCaret->SetCaret(bVisible, ptHead, ptFoot); } } CFX_WideString CPWL_EditCtrl::GetText() const { return m_pEdit->GetText(); } void CPWL_EditCtrl::SetSel(int32_t nStartChar, int32_t nEndChar) { m_pEdit->SetSel(nStartChar, nEndChar); } void CPWL_EditCtrl::GetSel(int32_t& nStartChar, int32_t& nEndChar) const { m_pEdit->GetSel(nStartChar, nEndChar); } void CPWL_EditCtrl::Clear() { if (!IsReadOnly()) m_pEdit->Clear(); } void CPWL_EditCtrl::SelectAll() { m_pEdit->SelectAll(); } void CPWL_EditCtrl::SetScrollPos(const CFX_PointF& point) { m_pEdit->SetScrollPos(point); } CFX_PointF CPWL_EditCtrl::GetScrollPos() const { return m_pEdit->GetScrollPos(); } void CPWL_EditCtrl::CopyText() {} void CPWL_EditCtrl::PasteText() {} void CPWL_EditCtrl::CutText() {} void CPWL_EditCtrl::ShowVScrollBar(bool bShow) {} void CPWL_EditCtrl::InsertWord(uint16_t word, int32_t nCharset) { if (!IsReadOnly()) m_pEdit->InsertWord(word, nCharset); } void CPWL_EditCtrl::InsertReturn() { if (!IsReadOnly()) m_pEdit->InsertReturn(); } void CPWL_EditCtrl::Delete() { if (!IsReadOnly()) m_pEdit->Delete(); } void CPWL_EditCtrl::Backspace() { if (!IsReadOnly()) m_pEdit->Backspace(); } bool CPWL_EditCtrl::CanUndo() const { return !IsReadOnly() && m_pEdit->CanUndo(); } bool CPWL_EditCtrl::CanRedo() const { return !IsReadOnly() && m_pEdit->CanRedo(); } void CPWL_EditCtrl::Redo() { if (CanRedo()) m_pEdit->Redo(); } void CPWL_EditCtrl::Undo() { if (CanUndo()) m_pEdit->Undo(); } void CPWL_EditCtrl::IOnSetScrollInfoY(float fPlateMin, float fPlateMax, float fContentMin, float fContentMax, float fSmallStep, float fBigStep) { PWL_SCROLL_INFO Info; Info.fPlateWidth = fPlateMax - fPlateMin; Info.fContentMin = fContentMin; Info.fContentMax = fContentMax; Info.fSmallStep = fSmallStep; Info.fBigStep = fBigStep; SetScrollInfo(Info); if (IsFloatBigger(Info.fPlateWidth, Info.fContentMax - Info.fContentMin) || IsFloatEqual(Info.fPlateWidth, Info.fContentMax - Info.fContentMin)) { ShowVScrollBar(false); } else { ShowVScrollBar(true); } } void CPWL_EditCtrl::IOnSetScrollPosY(float fy) { SetScrollPosition(fy); } void CPWL_EditCtrl::IOnSetCaret(bool bVisible, const CFX_PointF& ptHead, const CFX_PointF& ptFoot, const CPVT_WordPlace& place) { PWL_CARET_INFO cInfo; cInfo.bVisible = bVisible; cInfo.ptHead = ptHead; cInfo.ptFoot = ptFoot; OnNotify(this, PNM_SETCARETINFO, (intptr_t)&cInfo, (intptr_t) nullptr); } void CPWL_EditCtrl::IOnInvalidateRect(CFX_FloatRect* pRect) { InvalidateRect(pRect); } int32_t CPWL_EditCtrl::GetCharSet() const { return m_nCharSet < 0 ? FX_CHARSET_Default : m_nCharSet; } void CPWL_EditCtrl::SetReadyToInput() { if (m_bMouseDown) { ReleaseCapture(); m_bMouseDown = false; } }