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// 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::ScrollWindowVertically(float pos) {
m_pEdit->SetScrollPos(CFX_PointF(m_pEdit->GetScrollPos().x, pos));
}
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);
SetCaret(bVisible, ptHead, ptFoot);
}
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::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();
}
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;
}
}