diff options
Diffstat (limited to 'fpdfsdk/pwl/cpwl_edit.cpp')
| -rw-r--r-- | fpdfsdk/pwl/cpwl_edit.cpp | 709 |
1 files changed, 709 insertions, 0 deletions
diff --git a/fpdfsdk/pwl/cpwl_edit.cpp b/fpdfsdk/pwl/cpwl_edit.cpp new file mode 100644 index 0000000000..4a19e70eb6 --- /dev/null +++ b/fpdfsdk/pwl/cpwl_edit.cpp @@ -0,0 +1,709 @@ +// 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/pwl/cpwl_edit.h" + +#include <algorithm> +#include <memory> +#include <sstream> +#include <vector> + +#include "core/fpdfapi/font/cpdf_font.h" +#include "core/fpdfdoc/cpvt_word.h" +#include "core/fxcrt/fx_safe_types.h" +#include "core/fxcrt/xml/cxml_content.h" +#include "core/fxcrt/xml/cxml_element.h" +#include "core/fxge/cfx_graphstatedata.h" +#include "core/fxge/cfx_pathdata.h" +#include "core/fxge/cfx_renderdevice.h" +#include "core/fxge/fx_font.h" +#include "fpdfsdk/pwl/cpwl_caret.h" +#include "fpdfsdk/pwl/cpwl_edit_ctrl.h" +#include "fpdfsdk/pwl/cpwl_edit_impl.h" +#include "fpdfsdk/pwl/cpwl_font_map.h" +#include "fpdfsdk/pwl/cpwl_scroll_bar.h" +#include "fpdfsdk/pwl/cpwl_wnd.h" +#include "public/fpdf_fwlevent.h" +#include "third_party/base/stl_util.h" + +CPWL_Edit::CPWL_Edit() : m_bFocus(false) {} + +CPWL_Edit::~CPWL_Edit() { + ASSERT(!m_bFocus); +} + +CFX_ByteString CPWL_Edit::GetClassName() const { + return PWL_CLASSNAME_EDIT; +} + +void CPWL_Edit::SetText(const CFX_WideString& csText) { + CFX_WideString swText = csText; + if (!HasFlag(PES_RICH)) { + m_pEdit->SetText(swText); + return; + } + + CFX_ByteString sValue = CFX_ByteString::FromUnicode(swText); + std::unique_ptr<CXML_Element> pXML( + CXML_Element::Parse(sValue.c_str(), sValue.GetLength())); + if (!pXML) { + m_pEdit->SetText(swText); + return; + } + swText.clear(); + + bool bFirst = true; + int32_t nCount = pXML->CountChildren(); + for (int32_t i = 0; i < nCount; i++) { + CXML_Element* pSubElement = ToElement(pXML->GetChild(i)); + if (!pSubElement || !pSubElement->GetTagName().EqualNoCase("p")) + continue; + + CFX_WideString swSection; + int nSubChild = pSubElement->CountChildren(); + for (int32_t j = 0; j < nSubChild; j++) { + CXML_Content* pSubContent = ToContent(pSubElement->GetChild(j)); + if (pSubContent) + swSection += pSubContent->m_Content; + } + if (bFirst) + bFirst = false; + else + swText += FWL_VKEY_Return; + swText += swSection; + } + + m_pEdit->SetText(swText); +} + +void CPWL_Edit::RePosChildWnd() { + if (CPWL_ScrollBar* pVSB = GetVScrollBar()) { + CFX_FloatRect rcWindow = m_rcOldWindow; + CFX_FloatRect rcVScroll = + CFX_FloatRect(rcWindow.right, rcWindow.bottom, + rcWindow.right + PWL_SCROLLBAR_WIDTH, rcWindow.top); + pVSB->Move(rcVScroll, true, false); + } + + if (m_pEditCaret && !HasFlag(PES_TEXTOVERFLOW)) { + CFX_FloatRect rect = GetClientRect(); + if (!rect.IsEmpty()) { + // +1 for caret beside border + rect.Inflate(1.0f, 1.0f); + rect.Normalize(); + } + m_pEditCaret->SetClipRect(rect); + } + + CPWL_EditCtrl::RePosChildWnd(); +} + +CFX_FloatRect CPWL_Edit::GetClientRect() const { + float width = static_cast<float>(GetBorderWidth() + GetInnerBorderWidth()); + CFX_FloatRect rcClient = GetWindowRect().GetDeflated(width, width); + if (CPWL_ScrollBar* pVSB = GetVScrollBar()) { + if (pVSB->IsVisible()) { + rcClient.right -= PWL_SCROLLBAR_WIDTH; + } + } + + return rcClient; +} + +void CPWL_Edit::SetAlignFormatV(PWL_EDIT_ALIGNFORMAT_V nFormat, bool bPaint) { + m_pEdit->SetAlignmentV((int32_t)nFormat, bPaint); +} + +bool CPWL_Edit::CanSelectAll() const { + return GetSelectWordRange() != m_pEdit->GetWholeWordRange(); +} + +bool CPWL_Edit::CanClear() const { + return !IsReadOnly() && m_pEdit->IsSelected(); +} + +bool CPWL_Edit::CanCopy() const { + return !HasFlag(PES_PASSWORD) && !HasFlag(PES_NOREAD) && + m_pEdit->IsSelected(); +} + +bool CPWL_Edit::CanCut() const { + return CanCopy() && !IsReadOnly(); +} +void CPWL_Edit::CutText() { + if (!CanCut()) + return; + m_pEdit->ClearSelection(); +} + +void CPWL_Edit::OnCreated() { + CPWL_EditCtrl::OnCreated(); + + if (CPWL_ScrollBar* pScroll = GetVScrollBar()) { + pScroll->RemoveFlag(PWS_AUTOTRANSPARENT); + pScroll->SetTransparency(255); + } + + SetParamByFlag(); + + m_rcOldWindow = GetWindowRect(); + + m_pEdit->SetOprNotify(this); + m_pEdit->EnableOprNotify(true); +} + +void CPWL_Edit::SetParamByFlag() { + if (HasFlag(PES_RIGHT)) { + m_pEdit->SetAlignmentH(2, false); + } else if (HasFlag(PES_MIDDLE)) { + m_pEdit->SetAlignmentH(1, false); + } else { + m_pEdit->SetAlignmentH(0, false); + } + + if (HasFlag(PES_BOTTOM)) { + m_pEdit->SetAlignmentV(2, false); + } else if (HasFlag(PES_CENTER)) { + m_pEdit->SetAlignmentV(1, false); + } else { + m_pEdit->SetAlignmentV(0, false); + } + + if (HasFlag(PES_PASSWORD)) { + m_pEdit->SetPasswordChar('*', false); + } + + m_pEdit->SetMultiLine(HasFlag(PES_MULTILINE), false); + m_pEdit->SetAutoReturn(HasFlag(PES_AUTORETURN), false); + m_pEdit->SetAutoFontSize(HasFlag(PWS_AUTOFONTSIZE), false); + m_pEdit->SetAutoScroll(HasFlag(PES_AUTOSCROLL), false); + m_pEdit->EnableUndo(HasFlag(PES_UNDO)); + + if (HasFlag(PES_TEXTOVERFLOW)) { + SetClipRect(CFX_FloatRect()); + m_pEdit->SetTextOverflow(true, false); + } else { + if (m_pEditCaret) { + CFX_FloatRect rect = GetClientRect(); + if (!rect.IsEmpty()) { + // +1 for caret beside border + rect.Inflate(1.0f, 1.0f); + rect.Normalize(); + } + m_pEditCaret->SetClipRect(rect); + } + } +} + +void CPWL_Edit::DrawThisAppearance(CFX_RenderDevice* pDevice, + CFX_Matrix* pUser2Device) { + CPWL_Wnd::DrawThisAppearance(pDevice, pUser2Device); + + CFX_FloatRect rcClient = GetClientRect(); + + int32_t nCharArray = m_pEdit->GetCharArray(); + FX_SAFE_INT32 nCharArraySafe = nCharArray; + nCharArraySafe -= 1; + nCharArraySafe *= 2; + + if (nCharArray > 0 && nCharArraySafe.IsValid()) { + switch (GetBorderStyle()) { + case BorderStyle::SOLID: { + CFX_GraphStateData gsd; + gsd.m_LineWidth = (float)GetBorderWidth(); + + CFX_PathData path; + + for (int32_t i = 0; i < nCharArray - 1; i++) { + path.AppendPoint( + CFX_PointF( + rcClient.left + + ((rcClient.right - rcClient.left) / nCharArray) * (i + 1), + rcClient.bottom), + FXPT_TYPE::MoveTo, false); + path.AppendPoint( + CFX_PointF( + rcClient.left + + ((rcClient.right - rcClient.left) / nCharArray) * (i + 1), + rcClient.top), + FXPT_TYPE::LineTo, false); + } + if (!path.GetPoints().empty()) { + pDevice->DrawPath(&path, pUser2Device, &gsd, 0, + GetBorderColor().ToFXColor(255), FXFILL_ALTERNATE); + } + break; + } + case BorderStyle::DASH: { + CFX_GraphStateData gsd; + gsd.m_LineWidth = (float)GetBorderWidth(); + + gsd.SetDashCount(2); + gsd.m_DashArray[0] = (float)GetBorderDash().nDash; + gsd.m_DashArray[1] = (float)GetBorderDash().nGap; + gsd.m_DashPhase = (float)GetBorderDash().nPhase; + + CFX_PathData path; + for (int32_t i = 0; i < nCharArray - 1; i++) { + path.AppendPoint( + CFX_PointF( + rcClient.left + + ((rcClient.right - rcClient.left) / nCharArray) * (i + 1), + rcClient.bottom), + FXPT_TYPE::MoveTo, false); + path.AppendPoint( + CFX_PointF( + rcClient.left + + ((rcClient.right - rcClient.left) / nCharArray) * (i + 1), + rcClient.top), + FXPT_TYPE::LineTo, false); + } + if (!path.GetPoints().empty()) { + pDevice->DrawPath(&path, pUser2Device, &gsd, 0, + GetBorderColor().ToFXColor(255), FXFILL_ALTERNATE); + } + break; + } + default: + break; + } + } + + CFX_FloatRect rcClip; + CPVT_WordRange wrRange = m_pEdit->GetVisibleWordRange(); + CPVT_WordRange* pRange = nullptr; + if (!HasFlag(PES_TEXTOVERFLOW)) { + rcClip = GetClientRect(); + pRange = &wrRange; + } + + CFX_SystemHandler* pSysHandler = GetSystemHandler(); + CPWL_EditImpl::DrawEdit(pDevice, pUser2Device, m_pEdit.get(), + GetTextColor().ToFXColor(GetTransparency()), rcClip, + CFX_PointF(), pRange, pSysHandler, + m_pFormFiller.Get()); +} + +bool CPWL_Edit::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) { + CPWL_Wnd::OnLButtonDown(point, nFlag); + + if (HasFlag(PES_TEXTOVERFLOW) || ClientHitTest(point)) { + if (m_bMouseDown) + InvalidateRect(); + + m_bMouseDown = true; + SetCapture(); + + m_pEdit->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); + } + + return true; +} + +bool CPWL_Edit::OnLButtonDblClk(const CFX_PointF& point, uint32_t nFlag) { + CPWL_Wnd::OnLButtonDblClk(point, nFlag); + + if (HasFlag(PES_TEXTOVERFLOW) || ClientHitTest(point)) { + m_pEdit->SelectAll(); + } + + return true; +} + +bool CPWL_Edit::OnRButtonUp(const CFX_PointF& point, uint32_t nFlag) { + if (m_bMouseDown) + return false; + + CPWL_Wnd::OnRButtonUp(point, nFlag); + + if (!HasFlag(PES_TEXTOVERFLOW) && !ClientHitTest(point)) + return true; + + CFX_SystemHandler* pSH = GetSystemHandler(); + if (!pSH) + return false; + + SetFocus(); + + return false; +} + +void CPWL_Edit::OnSetFocus() { + SetEditCaret(true); + if (!IsReadOnly()) { + if (IPWL_FocusHandler* pFocusHandler = GetFocusHandler()) + pFocusHandler->OnSetFocus(this); + } + m_bFocus = true; +} + +void CPWL_Edit::OnKillFocus() { + CPWL_ScrollBar* pScroll = GetVScrollBar(); + if (pScroll && pScroll->IsVisible()) { + pScroll->SetVisible(false); + Move(m_rcOldWindow, true, true); + } + + m_pEdit->SelectNone(); + SetCaret(false, CFX_PointF(), CFX_PointF()); + SetCharSet(FX_CHARSET_ANSI); + m_bFocus = false; +} + +void CPWL_Edit::SetCharSpace(float fCharSpace) { + m_pEdit->SetCharSpace(fCharSpace); +} + +CPVT_WordRange CPWL_Edit::GetSelectWordRange() const { + if (m_pEdit->IsSelected()) { + int32_t nStart = -1; + int32_t nEnd = -1; + + m_pEdit->GetSelection(nStart, nEnd); + + CPVT_WordPlace wpStart = m_pEdit->WordIndexToWordPlace(nStart); + CPVT_WordPlace wpEnd = m_pEdit->WordIndexToWordPlace(nEnd); + + return CPVT_WordRange(wpStart, wpEnd); + } + + return CPVT_WordRange(); +} + +CFX_PointF CPWL_Edit::GetWordRightBottomPoint(const CPVT_WordPlace& wpWord) { + CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator(); + CPVT_WordPlace wpOld = pIterator->GetAt(); + pIterator->SetAt(wpWord); + + CFX_PointF pt; + CPVT_Word word; + if (pIterator->GetWord(word)) { + pt = CFX_PointF(word.ptWord.x + word.fWidth, word.ptWord.y + word.fDescent); + } + pIterator->SetAt(wpOld); + return pt; +} + +bool CPWL_Edit::IsTextFull() const { + return m_pEdit->IsTextFull(); +} + +float CPWL_Edit::GetCharArrayAutoFontSize(CPDF_Font* pFont, + const CFX_FloatRect& rcPlate, + int32_t nCharArray) { + if (pFont && !pFont->IsStandardFont()) { + FX_RECT rcBBox; + pFont->GetFontBBox(rcBBox); + + CFX_FloatRect rcCell = rcPlate; + float xdiv = rcCell.Width() / nCharArray * 1000.0f / rcBBox.Width(); + float ydiv = -rcCell.Height() * 1000.0f / rcBBox.Height(); + + return xdiv < ydiv ? xdiv : ydiv; + } + + return 0.0f; +} + +void CPWL_Edit::SetCharArray(int32_t nCharArray) { + if (HasFlag(PES_CHARARRAY) && nCharArray > 0) { + m_pEdit->SetCharArray(nCharArray); + m_pEdit->SetTextOverflow(true, true); + + if (HasFlag(PWS_AUTOFONTSIZE)) { + if (IPVT_FontMap* pFontMap = GetFontMap()) { + float fFontSize = GetCharArrayAutoFontSize(pFontMap->GetPDFFont(0), + GetClientRect(), nCharArray); + if (fFontSize > 0.0f) { + m_pEdit->SetAutoFontSize(false, true); + m_pEdit->SetFontSize(fFontSize); + } + } + } + } +} + +void CPWL_Edit::SetLimitChar(int32_t nLimitChar) { + m_pEdit->SetLimitChar(nLimitChar); +} + +void CPWL_Edit::ReplaceSel(const CFX_WideString& wsText) { + m_pEdit->ClearSelection(); + m_pEdit->InsertText(wsText, FX_CHARSET_Default); +} + +CFX_FloatRect CPWL_Edit::GetFocusRect() const { + return CFX_FloatRect(); +} + +bool CPWL_Edit::IsVScrollBarVisible() const { + if (CPWL_ScrollBar* pScroll = GetVScrollBar()) + return pScroll->IsVisible(); + return false; +} + +bool CPWL_Edit::OnKeyDown(uint16_t nChar, uint32_t nFlag) { + if (m_bMouseDown) + return true; + + if (nChar == FWL_VKEY_Delete) { + if (m_pFillerNotify) { + CFX_WideString strChange; + CFX_WideString strChangeEx; + + int nSelStart = 0; + int nSelEnd = 0; + GetSelection(nSelStart, nSelEnd); + + if (nSelStart == nSelEnd) + nSelEnd = nSelStart + 1; + + bool bRC; + bool bExit; + std::tie(bRC, bExit) = m_pFillerNotify->OnBeforeKeyStroke( + GetAttachedData(), strChange, strChangeEx, nSelStart, nSelEnd, true, + nFlag); + if (!bRC) + return false; + if (bExit) + return false; + } + } + + bool bRet = CPWL_EditCtrl::OnKeyDown(nChar, nFlag); + + // In case of implementation swallow the OnKeyDown event. + if (IsProceedtoOnChar(nChar, nFlag)) + return true; + + return bRet; +} + +/** + *In case of implementation swallow the OnKeyDown event. + *If the event is swallowed, implementation may do other unexpected things, + *which is not the control means to do. + */ +bool CPWL_Edit::IsProceedtoOnChar(uint16_t nKeyCode, uint32_t nFlag) { + bool bCtrl = IsCTRLpressed(nFlag); + bool bAlt = IsALTpressed(nFlag); + if (bCtrl && !bAlt) { + // hot keys for edit control. + switch (nKeyCode) { + case 'C': + case 'V': + case 'X': + case 'A': + case 'Z': + return true; + default: + break; + } + } + // control characters. + switch (nKeyCode) { + case FWL_VKEY_Escape: + case FWL_VKEY_Back: + case FWL_VKEY_Return: + case FWL_VKEY_Space: + return true; + default: + return false; + } +} + +bool CPWL_Edit::OnChar(uint16_t nChar, uint32_t nFlag) { + if (m_bMouseDown) + return true; + + bool bRC = true; + bool bExit = false; + + if (!IsCTRLpressed(nFlag)) { + if (m_pFillerNotify) { + CFX_WideString swChange; + + int nSelStart = 0; + int nSelEnd = 0; + GetSelection(nSelStart, nSelEnd); + + switch (nChar) { + case FWL_VKEY_Back: + if (nSelStart == nSelEnd) + nSelStart = nSelEnd - 1; + break; + case FWL_VKEY_Return: + break; + default: + swChange += nChar; + break; + } + + CFX_WideString strChangeEx; + std::tie(bRC, bExit) = m_pFillerNotify->OnBeforeKeyStroke( + GetAttachedData(), swChange, strChangeEx, nSelStart, nSelEnd, true, + nFlag); + } + } + + if (!bRC) + return true; + if (bExit) + return false; + + if (IPVT_FontMap* pFontMap = GetFontMap()) { + int32_t nOldCharSet = GetCharSet(); + int32_t nNewCharSet = + pFontMap->CharSetFromUnicode(nChar, FX_CHARSET_Default); + if (nOldCharSet != nNewCharSet) { + SetCharSet(nNewCharSet); + } + } + + return CPWL_EditCtrl::OnChar(nChar, nFlag); +} + +bool CPWL_Edit::OnMouseWheel(short zDelta, + const CFX_PointF& point, + uint32_t nFlag) { + if (HasFlag(PES_MULTILINE)) { + CFX_PointF ptScroll = GetScrollPos(); + + if (zDelta > 0) { + ptScroll.y += GetFontSize(); + } else { + ptScroll.y -= GetFontSize(); + } + SetScrollPos(ptScroll); + + return true; + } + + return false; +} + +void CPWL_Edit::OnInsertReturn(const CPVT_WordPlace& place, + const CPVT_WordPlace& oldplace) { + if (HasFlag(PES_SPELLCHECK)) { + m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), + GetLatinWordsRange(place))); + } +} + +void CPWL_Edit::OnBackSpace(const CPVT_WordPlace& place, + const CPVT_WordPlace& oldplace) { + if (HasFlag(PES_SPELLCHECK)) { + m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), + GetLatinWordsRange(place))); + } +} + +void CPWL_Edit::OnDelete(const CPVT_WordPlace& place, + const CPVT_WordPlace& oldplace) { + if (HasFlag(PES_SPELLCHECK)) { + m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), + GetLatinWordsRange(place))); + } +} + +void CPWL_Edit::OnClear(const CPVT_WordPlace& place, + const CPVT_WordPlace& oldplace) { + if (HasFlag(PES_SPELLCHECK)) { + m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), + GetLatinWordsRange(place))); + } +} + +void CPWL_Edit::OnInsertWord(const CPVT_WordPlace& place, + const CPVT_WordPlace& oldplace) { + if (HasFlag(PES_SPELLCHECK)) { + m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), + GetLatinWordsRange(place))); + } +} + +void CPWL_Edit::OnInsertText(const CPVT_WordPlace& place, + const CPVT_WordPlace& oldplace) { + if (HasFlag(PES_SPELLCHECK)) { + m_pEdit->RefreshWordRange(CombineWordRange(GetLatinWordsRange(oldplace), + GetLatinWordsRange(place))); + } +} + +CPVT_WordRange CPWL_Edit::CombineWordRange(const CPVT_WordRange& wr1, + const CPVT_WordRange& wr2) { + return CPVT_WordRange(std::min(wr1.BeginPos, wr2.BeginPos), + std::max(wr1.EndPos, wr2.EndPos)); +} + +CPVT_WordRange CPWL_Edit::GetLatinWordsRange(const CFX_PointF& point) const { + return GetSameWordsRange(m_pEdit->SearchWordPlace(point), true, false); +} + +CPVT_WordRange CPWL_Edit::GetLatinWordsRange( + const CPVT_WordPlace& place) const { + return GetSameWordsRange(place, true, false); +} + +CPVT_WordRange CPWL_Edit::GetArabicWordsRange( + const CPVT_WordPlace& place) const { + return GetSameWordsRange(place, false, true); +} + +#define PWL_ISARABICWORD(word) \ + ((word >= 0x0600 && word <= 0x06FF) || (word >= 0xFB50 && word <= 0xFEFC)) + +CPVT_WordRange CPWL_Edit::GetSameWordsRange(const CPVT_WordPlace& place, + bool bLatin, + bool bArabic) const { + CPVT_WordRange range; + + CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator(); + CPVT_Word wordinfo; + CPVT_WordPlace wpStart(place), wpEnd(place); + pIterator->SetAt(place); + + if (bLatin) { + while (pIterator->NextWord()) { + if (!pIterator->GetWord(wordinfo) || + !FX_EDIT_ISLATINWORD(wordinfo.Word)) { + break; + } + + wpEnd = pIterator->GetAt(); + } + } else if (bArabic) { + while (pIterator->NextWord()) { + if (!pIterator->GetWord(wordinfo) || !PWL_ISARABICWORD(wordinfo.Word)) + break; + + wpEnd = pIterator->GetAt(); + } + } + + pIterator->SetAt(place); + + if (bLatin) { + do { + if (!pIterator->GetWord(wordinfo) || + !FX_EDIT_ISLATINWORD(wordinfo.Word)) { + break; + } + + wpStart = pIterator->GetAt(); + } while (pIterator->PrevWord()); + } else if (bArabic) { + do { + if (!pIterator->GetWord(wordinfo) || !PWL_ISARABICWORD(wordinfo.Word)) + break; + + wpStart = pIterator->GetAt(); + } while (pIterator->PrevWord()); + } + + range.Set(wpStart, wpEnd); + return range; +} |