blob: 5184cfe70a5c4fd0c2fc36ddc02172859e2ca9fb [file] [log] [blame]
// 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/PWL_ComboBox.h"
#include "core/fxge/include/fx_ge.h"
#include "fpdfsdk/fxedit/include/fxet_list.h"
#include "fpdfsdk/pdfwindow/PWL_Edit.h"
#include "fpdfsdk/pdfwindow/PWL_EditCtrl.h"
#include "fpdfsdk/pdfwindow/PWL_ListBox.h"
#include "fpdfsdk/pdfwindow/PWL_Utils.h"
#include "fpdfsdk/pdfwindow/PWL_Wnd.h"
#include "public/fpdf_fwlevent.h"
#define PWLCB_DEFAULTFONTSIZE 12.0f
#define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
#define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
#define IsFloatSmaller(fa, fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb)))
#define IsFloatEqual(fa, fb) IsFloatZero((fa) - (fb))
FX_BOOL CPWL_CBListBox::OnLButtonUp(const CFX_FloatPoint& point,
uint32_t nFlag) {
CPWL_Wnd::OnLButtonUp(point, nFlag);
if (m_bMouseDown) {
ReleaseCapture();
m_bMouseDown = FALSE;
if (ClientHitTest(point)) {
if (CPWL_Wnd* pParent = GetParentWindow()) {
pParent->OnNotify(this, PNM_LBUTTONUP, 0,
PWL_MAKEDWORD(point.x, point.y));
}
FX_BOOL bExit = FALSE;
OnNotifySelChanged(FALSE, bExit, nFlag);
if (bExit)
return FALSE;
}
}
return TRUE;
}
FX_BOOL CPWL_CBListBox::OnKeyDownWithExit(uint16_t nChar,
FX_BOOL& bExit,
uint32_t nFlag) {
if (!m_pList)
return FALSE;
switch (nChar) {
default:
return FALSE;
case FWL_VKEY_Up:
case FWL_VKEY_Down:
case FWL_VKEY_Home:
case FWL_VKEY_Left:
case FWL_VKEY_End:
case FWL_VKEY_Right:
break;
}
switch (nChar) {
case FWL_VKEY_Up:
m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Down:
m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Home:
m_pList->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Left:
m_pList->OnVK_LEFT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_End:
m_pList->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Right:
m_pList->OnVK_RIGHT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
break;
case FWL_VKEY_Delete:
break;
}
OnNotifySelChanged(TRUE, bExit, nFlag);
return TRUE;
}
FX_BOOL CPWL_CBListBox::OnCharWithExit(uint16_t nChar,
FX_BOOL& bExit,
uint32_t nFlag) {
if (!m_pList)
return FALSE;
if (!m_pList->OnChar(nChar, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)))
return FALSE;
if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetParentWindow()) {
pComboBox->SetSelectText();
}
OnNotifySelChanged(TRUE, bExit, nFlag);
return TRUE;
}
void CPWL_CBButton::GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) {
CPWL_Wnd::GetThisAppearanceStream(sAppStream);
CFX_FloatRect rectWnd = CPWL_Wnd::GetWindowRect();
if (IsVisible() && !rectWnd.IsEmpty()) {
CFX_ByteTextBuf sButton;
CFX_FloatPoint ptCenter = GetCenterPoint();
CFX_FloatPoint pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN,
ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
CFX_FloatPoint pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN,
ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
CFX_FloatPoint pt3(ptCenter.x,
ptCenter.y - PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
if (IsFloatBigger(rectWnd.right - rectWnd.left,
PWL_CBBUTTON_TRIANGLE_HALFLEN * 2) &&
IsFloatBigger(rectWnd.top - rectWnd.bottom,
PWL_CBBUTTON_TRIANGLE_HALFLEN)) {
sButton << "0 g\n";
sButton << pt1.x << " " << pt1.y << " m\n";
sButton << pt2.x << " " << pt2.y << " l\n";
sButton << pt3.x << " " << pt3.y << " l\n";
sButton << pt1.x << " " << pt1.y << " l f\n";
sAppStream << "q\n" << sButton << "Q\n";
}
}
}
void CPWL_CBButton::DrawThisAppearance(CFX_RenderDevice* pDevice,
CFX_Matrix* pUser2Device) {
CPWL_Wnd::DrawThisAppearance(pDevice, pUser2Device);
CFX_FloatRect rectWnd = CPWL_Wnd::GetWindowRect();
if (IsVisible() && !rectWnd.IsEmpty()) {
CFX_FloatPoint ptCenter = GetCenterPoint();
CFX_FloatPoint pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN,
ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
CFX_FloatPoint pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN,
ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
CFX_FloatPoint pt3(ptCenter.x,
ptCenter.y - PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
if (IsFloatBigger(rectWnd.right - rectWnd.left,
PWL_CBBUTTON_TRIANGLE_HALFLEN * 2) &&
IsFloatBigger(rectWnd.top - rectWnd.bottom,
PWL_CBBUTTON_TRIANGLE_HALFLEN)) {
CFX_PathData path;
path.SetPointCount(4);
path.SetPoint(0, pt1.x, pt1.y, FXPT_MOVETO);
path.SetPoint(1, pt2.x, pt2.y, FXPT_LINETO);
path.SetPoint(2, pt3.x, pt3.y, FXPT_LINETO);
path.SetPoint(3, pt1.x, pt1.y, FXPT_LINETO);
pDevice->DrawPath(&path, pUser2Device, nullptr,
CPWL_Utils::PWLColorToFXColor(PWL_DEFAULT_BLACKCOLOR,
GetTransparency()),
0, FXFILL_ALTERNATE);
}
}
}
FX_BOOL CPWL_CBButton::OnLButtonDown(const CFX_FloatPoint& point,
uint32_t nFlag) {
CPWL_Wnd::OnLButtonDown(point, nFlag);
SetCapture();
if (CPWL_Wnd* pParent = GetParentWindow()) {
pParent->OnNotify(this, PNM_LBUTTONDOWN, 0,
PWL_MAKEDWORD(point.x, point.y));
}
return TRUE;
}
FX_BOOL CPWL_CBButton::OnLButtonUp(const CFX_FloatPoint& point,
uint32_t nFlag) {
CPWL_Wnd::OnLButtonUp(point, nFlag);
ReleaseCapture();
return TRUE;
}
CPWL_ComboBox::CPWL_ComboBox()
: m_pEdit(nullptr),
m_pButton(nullptr),
m_pList(nullptr),
m_bPopup(FALSE),
m_nPopupWhere(0),
m_nSelectItem(-1),
m_pFillerNotify(nullptr) {}
CFX_ByteString CPWL_ComboBox::GetClassName() const {
return "CPWL_ComboBox";
}
void CPWL_ComboBox::OnCreate(PWL_CREATEPARAM& cp) {
cp.dwFlags &= ~PWS_HSCROLL;
cp.dwFlags &= ~PWS_VSCROLL;
}
void CPWL_ComboBox::SetFocus() {
if (m_pEdit)
m_pEdit->SetFocus();
}
void CPWL_ComboBox::KillFocus() {
SetPopup(FALSE);
CPWL_Wnd::KillFocus();
}
CFX_WideString CPWL_ComboBox::GetText() const {
if (m_pEdit) {
return m_pEdit->GetText();
}
return CFX_WideString();
}
void CPWL_ComboBox::SetText(const FX_WCHAR* text) {
if (m_pEdit)
m_pEdit->SetText(text);
}
void CPWL_ComboBox::AddString(const FX_WCHAR* str) {
if (m_pList)
m_pList->AddString(str);
}
int32_t CPWL_ComboBox::GetSelect() const {
return m_nSelectItem;
}
void CPWL_ComboBox::SetSelect(int32_t nItemIndex) {
if (m_pList)
m_pList->Select(nItemIndex);
m_pEdit->SetText(m_pList->GetText().c_str());
m_nSelectItem = nItemIndex;
}
void CPWL_ComboBox::SetEditSel(int32_t nStartChar, int32_t nEndChar) {
if (m_pEdit) {
m_pEdit->SetSel(nStartChar, nEndChar);
}
}
void CPWL_ComboBox::GetEditSel(int32_t& nStartChar, int32_t& nEndChar) const {
nStartChar = -1;
nEndChar = -1;
if (m_pEdit) {
m_pEdit->GetSel(nStartChar, nEndChar);
}
}
void CPWL_ComboBox::Clear() {
if (m_pEdit) {
m_pEdit->Clear();
}
}
void CPWL_ComboBox::CreateChildWnd(const PWL_CREATEPARAM& cp) {
CreateEdit(cp);
CreateButton(cp);
CreateListBox(cp);
}
void CPWL_ComboBox::CreateEdit(const PWL_CREATEPARAM& cp) {
if (!m_pEdit) {
m_pEdit = new CPWL_CBEdit;
m_pEdit->AttachFFLData(m_pFormFiller);
PWL_CREATEPARAM ecp = cp;
ecp.pParentWnd = this;
ecp.dwFlags = PWS_VISIBLE | PWS_CHILD | PWS_BORDER | PES_CENTER |
PES_AUTOSCROLL | PES_UNDO;
if (HasFlag(PWS_AUTOFONTSIZE))
ecp.dwFlags |= PWS_AUTOFONTSIZE;
if (!HasFlag(PCBS_ALLOWCUSTOMTEXT))
ecp.dwFlags |= PWS_READONLY;
ecp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0);
ecp.dwBorderWidth = 0;
ecp.nBorderStyle = BorderStyle::SOLID;
m_pEdit->Create(ecp);
}
}
void CPWL_ComboBox::CreateButton(const PWL_CREATEPARAM& cp) {
if (!m_pButton) {
m_pButton = new CPWL_CBButton;
PWL_CREATEPARAM bcp = cp;
bcp.pParentWnd = this;
bcp.dwFlags = PWS_VISIBLE | PWS_CHILD | PWS_BORDER | PWS_BACKGROUND;
bcp.sBackgroundColor = PWL_SCROLLBAR_BKCOLOR;
bcp.sBorderColor = PWL_DEFAULT_BLACKCOLOR;
bcp.dwBorderWidth = 2;
bcp.nBorderStyle = BorderStyle::BEVELED;
bcp.eCursorType = FXCT_ARROW;
m_pButton->Create(bcp);
}
}
void CPWL_ComboBox::CreateListBox(const PWL_CREATEPARAM& cp) {
if (!m_pList) {
m_pList = new CPWL_CBListBox;
m_pList->AttachFFLData(m_pFormFiller);
PWL_CREATEPARAM lcp = cp;
lcp.pParentWnd = this;
lcp.dwFlags =
PWS_CHILD | PWS_BORDER | PWS_BACKGROUND | PLBS_HOVERSEL | PWS_VSCROLL;
lcp.nBorderStyle = BorderStyle::SOLID;
lcp.dwBorderWidth = 1;
lcp.eCursorType = FXCT_ARROW;
lcp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0);
if (cp.dwFlags & PWS_AUTOFONTSIZE)
lcp.fFontSize = PWLCB_DEFAULTFONTSIZE;
else
lcp.fFontSize = cp.fFontSize;
if (cp.sBorderColor.nColorType == COLORTYPE_TRANSPARENT)
lcp.sBorderColor = PWL_DEFAULT_BLACKCOLOR;
if (cp.sBackgroundColor.nColorType == COLORTYPE_TRANSPARENT)
lcp.sBackgroundColor = PWL_DEFAULT_WHITECOLOR;
m_pList->Create(lcp);
}
}
void CPWL_ComboBox::RePosChildWnd() {
CFX_FloatRect rcClient = GetClientRect();
if (m_bPopup) {
CFX_FloatRect rclient = GetClientRect();
CFX_FloatRect rcButton = rclient;
CFX_FloatRect rcEdit = rcClient;
CFX_FloatRect rcList = CPWL_Wnd::GetWindowRect();
FX_FLOAT fOldWindowHeight = m_rcOldWindow.Height();
FX_FLOAT fOldClientHeight = fOldWindowHeight - GetBorderWidth() * 2;
switch (m_nPopupWhere) {
case 0:
rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
if (rcButton.left < rclient.left)
rcButton.left = rclient.left;
rcButton.bottom = rcButton.top - fOldClientHeight;
rcEdit.right = rcButton.left - 1.0f;
if (rcEdit.left < rclient.left)
rcEdit.left = rclient.left;
if (rcEdit.right < rcEdit.left)
rcEdit.right = rcEdit.left;
rcEdit.bottom = rcEdit.top - fOldClientHeight;
rcList.top -= fOldWindowHeight;
break;
case 1:
rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
if (rcButton.left < rclient.left)
rcButton.left = rclient.left;
rcButton.top = rcButton.bottom + fOldClientHeight;
rcEdit.right = rcButton.left - 1.0f;
if (rcEdit.left < rclient.left)
rcEdit.left = rclient.left;
if (rcEdit.right < rcEdit.left)
rcEdit.right = rcEdit.left;
rcEdit.top = rcEdit.bottom + fOldClientHeight;
rcList.bottom += fOldWindowHeight;
break;
}
if (m_pButton)
m_pButton->Move(rcButton, TRUE, FALSE);
if (m_pEdit)
m_pEdit->Move(rcEdit, TRUE, FALSE);
if (m_pList) {
m_pList->SetVisible(TRUE);
m_pList->Move(rcList, TRUE, FALSE);
m_pList->ScrollToListItem(m_nSelectItem);
}
} else {
CFX_FloatRect rcButton = rcClient;
rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
if (rcButton.left < rcClient.left)
rcButton.left = rcClient.left;
if (m_pButton)
m_pButton->Move(rcButton, TRUE, FALSE);
CFX_FloatRect rcEdit = rcClient;
rcEdit.right = rcButton.left - 1.0f;
if (rcEdit.left < rcClient.left)
rcEdit.left = rcClient.left;
if (rcEdit.right < rcEdit.left)
rcEdit.right = rcEdit.left;
if (m_pEdit)
m_pEdit->Move(rcEdit, TRUE, FALSE);
if (m_pList)
m_pList->SetVisible(FALSE);
}
}
void CPWL_ComboBox::SelectAll() {
if (m_pEdit && HasFlag(PCBS_ALLOWCUSTOMTEXT))
m_pEdit->SelectAll();
}
CFX_FloatRect CPWL_ComboBox::GetFocusRect() const {
return CFX_FloatRect();
}
void CPWL_ComboBox::SetPopup(FX_BOOL bPopup) {
if (!m_pList)
return;
if (bPopup == m_bPopup)
return;
FX_FLOAT fListHeight = m_pList->GetContentRect().Height();
if (!IsFloatBigger(fListHeight, 0.0f))
return;
if (bPopup) {
if (m_pFillerNotify) {
#ifdef PDF_ENABLE_XFA
FX_BOOL bExit = FALSE;
m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, 0);
if (bExit)
return;
#endif // PDF_ENABLE_XFA
int32_t nWhere = 0;
FX_FLOAT fPopupRet = 0.0f;
FX_FLOAT fPopupMin = 0.0f;
if (m_pList->GetCount() > 3)
fPopupMin =
m_pList->GetFirstHeight() * 3 + m_pList->GetBorderWidth() * 2;
FX_FLOAT fPopupMax = fListHeight + m_pList->GetBorderWidth() * 2;
m_pFillerNotify->QueryWherePopup(GetAttachedData(), fPopupMin, fPopupMax,
nWhere, fPopupRet);
if (IsFloatBigger(fPopupRet, 0.0f)) {
m_bPopup = bPopup;
CFX_FloatRect rcWindow = CPWL_Wnd::GetWindowRect();
m_rcOldWindow = rcWindow;
switch (nWhere) {
default:
case 0:
rcWindow.bottom -= fPopupRet;
break;
case 1:
rcWindow.top += fPopupRet;
break;
}
m_nPopupWhere = nWhere;
Move(rcWindow, TRUE, TRUE);
#ifdef PDF_ENABLE_XFA
bExit = FALSE;
m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, 0);
if (bExit)
return;
#endif // PDF_ENABLE_XFA
}
}
} else {
m_bPopup = bPopup;
Move(m_rcOldWindow, TRUE, TRUE);
}
}
FX_BOOL CPWL_ComboBox::OnKeyDown(uint16_t nChar, uint32_t nFlag) {
if (!m_pList)
return FALSE;
if (!m_pEdit)
return FALSE;
m_nSelectItem = -1;
switch (nChar) {
case FWL_VKEY_Up:
if (m_pList->GetCurSel() > 0) {
FX_BOOL bExit = FALSE;
#ifdef PDF_ENABLE_XFA
if (m_pFillerNotify) {
m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
if (bExit)
return FALSE;
bExit = FALSE;
m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
if (bExit)
return FALSE;
}
#endif // PDF_ENABLE_XFA
if (m_pList->OnKeyDownWithExit(nChar, bExit, nFlag)) {
if (bExit)
return FALSE;
SetSelectText();
}
}
return TRUE;
case FWL_VKEY_Down:
if (m_pList->GetCurSel() < m_pList->GetCount() - 1) {
FX_BOOL bExit = FALSE;
#ifdef PDF_ENABLE_XFA
if (m_pFillerNotify) {
m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
if (bExit)
return FALSE;
bExit = FALSE;
m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
if (bExit)
return FALSE;
}
#endif // PDF_ENABLE_XFA
if (m_pList->OnKeyDownWithExit(nChar, bExit, nFlag)) {
if (bExit)
return FALSE;
SetSelectText();
}
}
return TRUE;
}
if (HasFlag(PCBS_ALLOWCUSTOMTEXT))
return m_pEdit->OnKeyDown(nChar, nFlag);
return FALSE;
}
FX_BOOL CPWL_ComboBox::OnChar(uint16_t nChar, uint32_t nFlag) {
if (!m_pList)
return FALSE;
if (!m_pEdit)
return FALSE;
m_nSelectItem = -1;
if (HasFlag(PCBS_ALLOWCUSTOMTEXT))
return m_pEdit->OnChar(nChar, nFlag);
FX_BOOL bExit = FALSE;
#ifdef PDF_ENABLE_XFA
if (m_pFillerNotify) {
m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
if (bExit)
return FALSE;
m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
if (bExit)
return FALSE;
}
#endif // PDF_ENABLE_XFA
return m_pList->OnCharWithExit(nChar, bExit, nFlag) ? bExit : FALSE;
}
void CPWL_ComboBox::OnNotify(CPWL_Wnd* pWnd,
uint32_t msg,
intptr_t wParam,
intptr_t lParam) {
switch (msg) {
case PNM_LBUTTONDOWN:
if (pWnd == m_pButton) {
SetPopup(!m_bPopup);
return;
}
break;
case PNM_LBUTTONUP:
if (m_pEdit && m_pList) {
if (pWnd == m_pList) {
SetSelectText();
SelectAll();
m_pEdit->SetFocus();
SetPopup(FALSE);
return;
}
}
}
CPWL_Wnd::OnNotify(pWnd, msg, wParam, lParam);
}
FX_BOOL CPWL_ComboBox::IsPopup() const {
return m_bPopup;
}
void CPWL_ComboBox::SetSelectText() {
CFX_WideString swText = m_pList->GetText();
m_pEdit->SelectAll();
m_pEdit->ReplaceSel(m_pList->GetText().c_str());
m_pEdit->SelectAll();
m_nSelectItem = m_pList->GetCurSel();
}
void CPWL_ComboBox::SetFillerNotify(IPWL_Filler_Notify* pNotify) {
m_pFillerNotify = pNotify;
if (m_pEdit)
m_pEdit->SetFillerNotify(pNotify);
if (m_pList)
m_pList->SetFillerNotify(pNotify);
}