// 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/pdfwindow/PWL_EditCtrl.h"
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#include "core/fpdfdoc/include/cpvt_section.h"
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#include "core/fpdfdoc/include/cpvt_word.h"
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#include "fpdfsdk/fxedit/include/fxet_edit.h"
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#include "fpdfsdk/pdfwindow/PWL_Caret.h"
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#include "fpdfsdk/pdfwindow/PWL_FontMap.h"
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#include "fpdfsdk/pdfwindow/PWL_ScrollBar.h"
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#include "fpdfsdk/pdfwindow/PWL_Utils.h"
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#include "fpdfsdk/pdfwindow/PWL_Wnd.h"
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#include "public/fpdf_fwlevent.h"
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#define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
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#define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
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#define IsFloatSmaller(fa, fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb)))
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#define IsFloatEqual(fa, fb) IsFloatZero((fa) - (fb))
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CPWL_EditCtrl::CPWL_EditCtrl()
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: m_pEdit(new CFX_Edit),
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m_pEditCaret(nullptr),
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m_bMouseDown(FALSE),
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m_nCharSet(DEFAULT_CHARSET),
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m_nCodePage(0) {}
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CPWL_EditCtrl::~CPWL_EditCtrl() {}
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void CPWL_EditCtrl::OnCreate(PWL_CREATEPARAM& cp) {
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cp.eCursorType = FXCT_VBEAM;
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}
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void CPWL_EditCtrl::OnCreated() {
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SetFontSize(GetCreationParam().fFontSize);
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m_pEdit->SetFontMap(GetFontMap());
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m_pEdit->SetNotify(this);
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m_pEdit->Initialize();
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}
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FX_BOOL CPWL_EditCtrl::IsWndHorV() {
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CFX_Matrix mt = GetWindowMatrix();
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CFX_FloatPoint point1(0, 1);
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CFX_FloatPoint point2(1, 1);
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mt.Transform(point1.x, point1.y);
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mt.Transform(point2.x, point2.y);
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return point2.y == point1.y;
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}
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void CPWL_EditCtrl::SetCursor() {
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if (IsValid()) {
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if (CFX_SystemHandler* pSH = GetSystemHandler()) {
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if (IsWndHorV())
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pSH->SetCursor(FXCT_VBEAM);
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else
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pSH->SetCursor(FXCT_HBEAM);
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}
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}
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}
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void CPWL_EditCtrl::RePosChildWnd() {
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m_pEdit->SetPlateRect(GetClientRect());
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}
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void CPWL_EditCtrl::OnNotify(CPWL_Wnd* pWnd,
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uint32_t msg,
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intptr_t wParam,
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intptr_t lParam) {
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CPWL_Wnd::OnNotify(pWnd, msg, wParam, lParam);
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switch (msg) {
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case PNM_SETSCROLLINFO:
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switch (wParam) {
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case SBT_VSCROLL:
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if (CPWL_Wnd* pChild = GetVScrollBar()) {
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pChild->OnNotify(pWnd, PNM_SETSCROLLINFO, wParam, lParam);
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}
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break;
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}
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break;
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case PNM_SETSCROLLPOS:
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switch (wParam) {
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case SBT_VSCROLL:
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if (CPWL_Wnd* pChild = GetVScrollBar()) {
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pChild->OnNotify(pWnd, PNM_SETSCROLLPOS, wParam, lParam);
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}
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break;
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}
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break;
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case PNM_SCROLLWINDOW: {
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FX_FLOAT fPos = *(FX_FLOAT*)lParam;
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switch (wParam) {
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case SBT_VSCROLL:
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m_pEdit->SetScrollPos(
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CFX_FloatPoint(m_pEdit->GetScrollPos().x, fPos));
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break;
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}
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} break;
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case PNM_SETCARETINFO: {
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if (PWL_CARET_INFO* pCaretInfo = (PWL_CARET_INFO*)wParam) {
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SetCaret(pCaretInfo->bVisible, pCaretInfo->ptHead, pCaretInfo->ptFoot);
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}
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} break;
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}
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}
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void CPWL_EditCtrl::CreateChildWnd(const PWL_CREATEPARAM& cp) {
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if (!IsReadOnly())
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CreateEditCaret(cp);
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}
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void CPWL_EditCtrl::CreateEditCaret(const PWL_CREATEPARAM& cp) {
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if (m_pEditCaret)
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return;
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m_pEditCaret = new CPWL_Caret;
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m_pEditCaret->SetInvalidRect(GetClientRect());
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PWL_CREATEPARAM ecp = cp;
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ecp.pParentWnd = this;
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ecp.dwFlags = PWS_CHILD | PWS_NOREFRESHCLIP;
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ecp.dwBorderWidth = 0;
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ecp.nBorderStyle = BorderStyle::SOLID;
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ecp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0);
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m_pEditCaret->Create(ecp);
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}
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void CPWL_EditCtrl::SetFontSize(FX_FLOAT fFontSize) {
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m_pEdit->SetFontSize(fFontSize);
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}
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FX_FLOAT CPWL_EditCtrl::GetFontSize() const {
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return m_pEdit->GetFontSize();
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}
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FX_BOOL CPWL_EditCtrl::OnKeyDown(uint16_t nChar, uint32_t nFlag) {
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if (m_bMouseDown)
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return TRUE;
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FX_BOOL bRet = CPWL_Wnd::OnKeyDown(nChar, nFlag);
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// FILTER
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switch (nChar) {
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default:
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return FALSE;
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case FWL_VKEY_Delete:
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case FWL_VKEY_Up:
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case FWL_VKEY_Down:
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case FWL_VKEY_Left:
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case FWL_VKEY_Right:
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case FWL_VKEY_Home:
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case FWL_VKEY_End:
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case FWL_VKEY_Insert:
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case 'C':
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case 'V':
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case 'X':
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case 'A':
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case 'Z':
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case 'c':
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case 'v':
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case 'x':
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case 'a':
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case 'z':
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break;
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}
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if (nChar == FWL_VKEY_Delete && m_pEdit->IsSelected())
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nChar = FWL_VKEY_Unknown;
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switch (nChar) {
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case FWL_VKEY_Delete:
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Delete();
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return TRUE;
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case FWL_VKEY_Insert:
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if (IsSHIFTpressed(nFlag))
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PasteText();
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return TRUE;
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case FWL_VKEY_Up:
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m_pEdit->OnVK_UP(IsSHIFTpressed(nFlag), FALSE);
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return TRUE;
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case FWL_VKEY_Down:
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m_pEdit->OnVK_DOWN(IsSHIFTpressed(nFlag), FALSE);
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return TRUE;
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case FWL_VKEY_Left:
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m_pEdit->OnVK_LEFT(IsSHIFTpressed(nFlag), FALSE);
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return TRUE;
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case FWL_VKEY_Right:
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m_pEdit->OnVK_RIGHT(IsSHIFTpressed(nFlag), FALSE);
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return TRUE;
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case FWL_VKEY_Home:
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m_pEdit->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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return TRUE;
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case FWL_VKEY_End:
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m_pEdit->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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return TRUE;
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case FWL_VKEY_Unknown:
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if (!IsSHIFTpressed(nFlag))
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Clear();
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else
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CutText();
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return TRUE;
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default:
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break;
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}
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return bRet;
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}
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FX_BOOL CPWL_EditCtrl::OnChar(uint16_t nChar, uint32_t nFlag) {
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if (m_bMouseDown)
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return TRUE;
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CPWL_Wnd::OnChar(nChar, nFlag);
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// FILTER
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switch (nChar) {
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case 0x0A:
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case 0x1B:
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return FALSE;
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default:
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break;
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}
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FX_BOOL bCtrl = IsCTRLpressed(nFlag);
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FX_BOOL bAlt = IsALTpressed(nFlag);
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FX_BOOL bShift = IsSHIFTpressed(nFlag);
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uint16_t word = nChar;
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if (bCtrl && !bAlt) {
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switch (nChar) {
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case 'C' - 'A' + 1:
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CopyText();
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return TRUE;
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case 'V' - 'A' + 1:
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PasteText();
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return TRUE;
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case 'X' - 'A' + 1:
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CutText();
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return TRUE;
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case 'A' - 'A' + 1:
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SelectAll();
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return TRUE;
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case 'Z' - 'A' + 1:
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if (bShift)
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Redo();
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else
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Undo();
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return TRUE;
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default:
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if (nChar < 32)
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return FALSE;
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}
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}
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if (IsReadOnly())
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return TRUE;
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if (m_pEdit->IsSelected() && word == FWL_VKEY_Back)
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word = FWL_VKEY_Unknown;
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Clear();
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switch (word) {
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case FWL_VKEY_Back:
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Backspace();
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break;
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case FWL_VKEY_Return:
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InsertReturn();
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break;
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case FWL_VKEY_Unknown:
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break;
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default:
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InsertWord(word, GetCharSet());
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break;
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}
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return TRUE;
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}
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FX_BOOL CPWL_EditCtrl::OnLButtonDown(const CFX_FloatPoint& point,
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uint32_t nFlag) {
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CPWL_Wnd::OnLButtonDown(point, nFlag);
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if (ClientHitTest(point)) {
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if (m_bMouseDown)
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InvalidateRect();
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m_bMouseDown = TRUE;
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SetCapture();
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m_pEdit->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
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}
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return TRUE;
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}
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FX_BOOL CPWL_EditCtrl::OnLButtonUp(const CFX_FloatPoint& point,
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uint32_t nFlag) {
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CPWL_Wnd::OnLButtonUp(point, nFlag);
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if (m_bMouseDown) {
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// can receive keybord message
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if (ClientHitTest(point) && !IsFocused())
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SetFocus();
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ReleaseCapture();
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m_bMouseDown = FALSE;
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}
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return TRUE;
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}
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FX_BOOL CPWL_EditCtrl::OnMouseMove(const CFX_FloatPoint& point,
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uint32_t nFlag) {
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CPWL_Wnd::OnMouseMove(point, nFlag);
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if (m_bMouseDown)
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m_pEdit->OnMouseMove(point, FALSE, FALSE);
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return TRUE;
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}
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CFX_FloatRect CPWL_EditCtrl::GetContentRect() const {
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return m_pEdit->GetContentRect();
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}
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void CPWL_EditCtrl::SetEditCaret(FX_BOOL bVisible) {
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CFX_FloatPoint ptHead(0, 0), ptFoot(0, 0);
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if (bVisible) {
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GetCaretInfo(ptHead, ptFoot);
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}
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CPVT_WordPlace wpTemp = m_pEdit->GetCaretWordPlace();
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IOnSetCaret(bVisible, ptHead, ptFoot, wpTemp);
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}
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void CPWL_EditCtrl::GetCaretInfo(CFX_FloatPoint& ptHead,
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CFX_FloatPoint& ptFoot) const {
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CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
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pIterator->SetAt(m_pEdit->GetCaret());
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CPVT_Word word;
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CPVT_Line line;
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if (pIterator->GetWord(word)) {
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ptHead.x = word.ptWord.x + word.fWidth;
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ptHead.y = word.ptWord.y + word.fAscent;
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ptFoot.x = word.ptWord.x + word.fWidth;
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ptFoot.y = word.ptWord.y + word.fDescent;
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} else if (pIterator->GetLine(line)) {
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ptHead.x = line.ptLine.x;
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ptHead.y = line.ptLine.y + line.fLineAscent;
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ptFoot.x = line.ptLine.x;
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ptFoot.y = line.ptLine.y + line.fLineDescent;
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}
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}
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void CPWL_EditCtrl::GetCaretPos(int32_t& x, int32_t& y) const {
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CFX_FloatPoint ptHead(0, 0), ptFoot(0, 0);
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GetCaretInfo(ptHead, ptFoot);
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PWLtoWnd(ptHead, x, y);
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}
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void CPWL_EditCtrl::SetCaret(FX_BOOL bVisible,
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const CFX_FloatPoint& ptHead,
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const CFX_FloatPoint& ptFoot) {
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if (m_pEditCaret) {
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if (!IsFocused() || m_pEdit->IsSelected())
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bVisible = FALSE;
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m_pEditCaret->SetCaret(bVisible, ptHead, ptFoot);
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}
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}
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CFX_WideString CPWL_EditCtrl::GetText() const {
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return m_pEdit->GetText();
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}
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void CPWL_EditCtrl::SetSel(int32_t nStartChar, int32_t nEndChar) {
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m_pEdit->SetSel(nStartChar, nEndChar);
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}
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void CPWL_EditCtrl::GetSel(int32_t& nStartChar, int32_t& nEndChar) const {
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m_pEdit->GetSel(nStartChar, nEndChar);
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}
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void CPWL_EditCtrl::Clear() {
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if (!IsReadOnly())
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m_pEdit->Clear();
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}
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void CPWL_EditCtrl::SelectAll() {
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m_pEdit->SelectAll();
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}
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void CPWL_EditCtrl::Paint() {
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m_pEdit->Paint();
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}
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void CPWL_EditCtrl::EnableRefresh(FX_BOOL bRefresh) {
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m_pEdit->EnableRefresh(bRefresh);
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}
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int32_t CPWL_EditCtrl::GetCaret() const {
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return m_pEdit->GetCaret();
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}
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void CPWL_EditCtrl::SetCaret(int32_t nPos) {
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m_pEdit->SetCaret(nPos);
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}
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int32_t CPWL_EditCtrl::GetTotalWords() const {
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return m_pEdit->GetTotalWords();
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}
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void CPWL_EditCtrl::SetScrollPos(const CFX_FloatPoint& point) {
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m_pEdit->SetScrollPos(point);
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}
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CFX_FloatPoint CPWL_EditCtrl::GetScrollPos() const {
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return m_pEdit->GetScrollPos();
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}
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CPDF_Font* CPWL_EditCtrl::GetCaretFont() const {
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int32_t nFontIndex = 0;
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CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
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pIterator->SetAt(m_pEdit->GetCaret());
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CPVT_Word word;
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CPVT_Section section;
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if (pIterator->GetWord(word)) {
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nFontIndex = word.nFontIndex;
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} else if (HasFlag(PES_RICH)) {
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if (pIterator->GetSection(section)) {
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nFontIndex = section.WordProps.nFontIndex;
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}
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}
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if (IPVT_FontMap* pFontMap = GetFontMap())
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return pFontMap->GetPDFFont(nFontIndex);
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return nullptr;
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}
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FX_FLOAT CPWL_EditCtrl::GetCaretFontSize() const {
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FX_FLOAT fFontSize = GetFontSize();
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CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
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pIterator->SetAt(m_pEdit->GetCaret());
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CPVT_Word word;
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CPVT_Section section;
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if (pIterator->GetWord(word)) {
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fFontSize = word.fFontSize;
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} else if (HasFlag(PES_RICH)) {
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if (pIterator->GetSection(section)) {
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fFontSize = section.WordProps.fFontSize;
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}
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}
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return fFontSize;
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}
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void CPWL_EditCtrl::SetText(const FX_WCHAR* csText) {
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m_pEdit->SetText(csText);
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}
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void CPWL_EditCtrl::CopyText() {}
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void CPWL_EditCtrl::PasteText() {}
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void CPWL_EditCtrl::CutText() {}
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void CPWL_EditCtrl::ShowVScrollBar(FX_BOOL bShow) {}
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void CPWL_EditCtrl::InsertText(const FX_WCHAR* csText) {
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if (!IsReadOnly())
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m_pEdit->InsertText(csText);
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}
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void CPWL_EditCtrl::InsertWord(uint16_t word, int32_t nCharset) {
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if (!IsReadOnly())
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m_pEdit->InsertWord(word, nCharset);
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}
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void CPWL_EditCtrl::InsertReturn() {
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if (!IsReadOnly())
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m_pEdit->InsertReturn();
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}
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void CPWL_EditCtrl::Delete() {
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if (!IsReadOnly())
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m_pEdit->Delete();
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}
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void CPWL_EditCtrl::Backspace() {
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if (!IsReadOnly())
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m_pEdit->Backspace();
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}
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FX_BOOL CPWL_EditCtrl::CanUndo() const {
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return !IsReadOnly() && m_pEdit->CanUndo();
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}
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FX_BOOL CPWL_EditCtrl::CanRedo() const {
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return !IsReadOnly() && m_pEdit->CanRedo();
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}
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void CPWL_EditCtrl::Redo() {
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if (CanRedo())
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m_pEdit->Redo();
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}
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void CPWL_EditCtrl::Undo() {
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if (CanUndo())
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m_pEdit->Undo();
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}
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void CPWL_EditCtrl::IOnSetScrollInfoY(FX_FLOAT fPlateMin,
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FX_FLOAT fPlateMax,
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FX_FLOAT fContentMin,
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FX_FLOAT fContentMax,
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FX_FLOAT fSmallStep,
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FX_FLOAT fBigStep) {
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PWL_SCROLL_INFO Info;
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Info.fPlateWidth = fPlateMax - fPlateMin;
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Info.fContentMin = fContentMin;
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Info.fContentMax = fContentMax;
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Info.fSmallStep = fSmallStep;
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Info.fBigStep = fBigStep;
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OnNotify(this, PNM_SETSCROLLINFO, SBT_VSCROLL, (intptr_t)&Info);
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if (IsFloatBigger(Info.fPlateWidth, Info.fContentMax - Info.fContentMin) ||
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IsFloatEqual(Info.fPlateWidth, Info.fContentMax - Info.fContentMin)) {
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ShowVScrollBar(FALSE);
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} else {
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ShowVScrollBar(TRUE);
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}
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}
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void CPWL_EditCtrl::IOnSetScrollPosY(FX_FLOAT fy) {
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OnNotify(this, PNM_SETSCROLLPOS, SBT_VSCROLL, (intptr_t)&fy);
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}
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void CPWL_EditCtrl::IOnSetCaret(FX_BOOL bVisible,
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const CFX_FloatPoint& ptHead,
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const CFX_FloatPoint& ptFoot,
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const CPVT_WordPlace& place) {
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PWL_CARET_INFO cInfo;
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cInfo.bVisible = bVisible;
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cInfo.ptHead = ptHead;
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cInfo.ptFoot = ptFoot;
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OnNotify(this, PNM_SETCARETINFO, (intptr_t)&cInfo, (intptr_t) nullptr);
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}
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void CPWL_EditCtrl::IOnCaretChange(const CPVT_SecProps& secProps,
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const CPVT_WordProps& wordProps) {}
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void CPWL_EditCtrl::IOnContentChange(const CFX_FloatRect& rcContent) {}
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void CPWL_EditCtrl::IOnInvalidateRect(CFX_FloatRect* pRect) {
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InvalidateRect(pRect);
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}
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int32_t CPWL_EditCtrl::GetCharSet() const {
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return m_nCharSet < 0 ? DEFAULT_CHARSET : m_nCharSet;
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}
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void CPWL_EditCtrl::GetTextRange(const CFX_FloatRect& rect,
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int32_t& nStartChar,
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int32_t& nEndChar) const {
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nStartChar = m_pEdit->WordPlaceToWordIndex(
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m_pEdit->SearchWordPlace(CFX_FloatPoint(rect.left, rect.top)));
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nEndChar = m_pEdit->WordPlaceToWordIndex(
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m_pEdit->SearchWordPlace(CFX_FloatPoint(rect.right, rect.bottom)));
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}
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CFX_WideString CPWL_EditCtrl::GetText(int32_t& nStartChar,
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int32_t& nEndChar) const {
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CPVT_WordPlace wpStart = m_pEdit->WordIndexToWordPlace(nStartChar);
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CPVT_WordPlace wpEnd = m_pEdit->WordIndexToWordPlace(nEndChar);
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return m_pEdit->GetRangeText(CPVT_WordRange(wpStart, wpEnd));
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}
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void CPWL_EditCtrl::SetReadyToInput() {
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if (m_bMouseDown) {
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ReleaseCapture();
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m_bMouseDown = FALSE;
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}
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}
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