// 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 "xfa/fwl/cfwl_widget.h" #include <algorithm> #include <utility> #include "xfa/fde/tto/fde_textout.h" #include "xfa/fwl/cfwl_app.h" #include "xfa/fwl/cfwl_combobox.h" #include "xfa/fwl/cfwl_event.h" #include "xfa/fwl/cfwl_eventmouse.h" #include "xfa/fwl/cfwl_form.h" #include "xfa/fwl/cfwl_messagekey.h" #include "xfa/fwl/cfwl_messagekillfocus.h" #include "xfa/fwl/cfwl_messagemouse.h" #include "xfa/fwl/cfwl_messagemousewheel.h" #include "xfa/fwl/cfwl_messagesetfocus.h" #include "xfa/fwl/cfwl_notedriver.h" #include "xfa/fwl/cfwl_themebackground.h" #include "xfa/fwl/cfwl_themepart.h" #include "xfa/fwl/cfwl_themetext.h" #include "xfa/fwl/cfwl_widgetmgr.h" #include "xfa/fwl/ifwl_themeprovider.h" #include "xfa/fxfa/xfa_ffapp.h" #define FWL_STYLEEXT_MNU_Vert (1L << 0) #define FWL_WGT_CalcHeight 2048 #define FWL_WGT_CalcWidth 2048 #define FWL_WGT_CalcMultiLineDefWidth 120.0f CFWL_Widget::CFWL_Widget(const CFWL_App* app, std::unique_ptr<CFWL_WidgetProperties> properties, CFWL_Widget* pOuter) : m_pOwnerApp(app), m_pWidgetMgr(app->GetWidgetMgr()), m_pProperties(std::move(properties)), m_pOuter(pOuter), m_iLock(0), m_pLayoutItem(nullptr), m_nEventKey(0), m_pDelegate(nullptr) { ASSERT(m_pWidgetMgr); CFWL_Widget* pParent = m_pProperties->m_pParent; m_pWidgetMgr->InsertWidget(pParent, this); if (IsChild()) return; CFWL_Widget* pOwner = m_pProperties->m_pOwner; if (pOwner) m_pWidgetMgr->SetOwner(pOwner, this); } CFWL_Widget::~CFWL_Widget() { NotifyDriver(); m_pWidgetMgr->RemoveWidget(this); } bool CFWL_Widget::IsInstance(const CFX_WideStringC& wsClass) const { return false; } CFX_RectF CFWL_Widget::GetAutosizedWidgetRect() { return CFX_RectF(); } CFX_RectF CFWL_Widget::GetWidgetRect() { return m_pProperties->m_rtWidget; } void CFWL_Widget::InflateWidgetRect(CFX_RectF& rect) { if (HasEdge()) { FX_FLOAT fEdge = GetEdgeWidth(); rect.Inflate(fEdge, fEdge); } if (HasBorder()) { FX_FLOAT fBorder = GetBorderSize(true); rect.Inflate(fBorder, fBorder); } } void CFWL_Widget::SetWidgetRect(const CFX_RectF& rect) { m_pProperties->m_rtWidget = rect; if (IsChild()) return; m_pWidgetMgr->SetWidgetRect_Native(this, rect); } CFX_RectF CFWL_Widget::GetClientRect() { CFX_RectF rect = GetEdgeRect(); if (HasEdge()) { FX_FLOAT fEdge = GetEdgeWidth(); rect.Deflate(fEdge, fEdge); } return rect; } void CFWL_Widget::SetParent(CFWL_Widget* pParent) { m_pProperties->m_pParent = pParent; m_pWidgetMgr->SetParent(pParent, this); } uint32_t CFWL_Widget::GetStyles() const { return m_pProperties->m_dwStyles; } void CFWL_Widget::ModifyStyles(uint32_t dwStylesAdded, uint32_t dwStylesRemoved) { m_pProperties->m_dwStyles = (m_pProperties->m_dwStyles & ~dwStylesRemoved) | dwStylesAdded; } uint32_t CFWL_Widget::GetStylesEx() const { return m_pProperties->m_dwStyleExes; } uint32_t CFWL_Widget::GetStates() const { return m_pProperties->m_dwStates; } void CFWL_Widget::ModifyStylesEx(uint32_t dwStylesExAdded, uint32_t dwStylesExRemoved) { m_pProperties->m_dwStyleExes = (m_pProperties->m_dwStyleExes & ~dwStylesExRemoved) | dwStylesExAdded; } static void NotifyHideChildWidget(CFWL_WidgetMgr* widgetMgr, CFWL_Widget* widget, CFWL_NoteDriver* noteDriver) { CFWL_Widget* child = widgetMgr->GetFirstChildWidget(widget); while (child) { noteDriver->NotifyTargetHide(child); NotifyHideChildWidget(widgetMgr, child, noteDriver); child = widgetMgr->GetNextSiblingWidget(child); } } void CFWL_Widget::SetStates(uint32_t dwStates) { m_pProperties->m_dwStates |= dwStates; if (!(dwStates & FWL_WGTSTATE_Invisible)) return; CFWL_NoteDriver* noteDriver = static_cast<CFWL_NoteDriver*>(GetOwnerApp()->GetNoteDriver()); CFWL_WidgetMgr* widgetMgr = GetOwnerApp()->GetWidgetMgr(); noteDriver->NotifyTargetHide(this); CFWL_Widget* child = widgetMgr->GetFirstChildWidget(this); while (child) { noteDriver->NotifyTargetHide(child); NotifyHideChildWidget(widgetMgr, child, noteDriver); child = widgetMgr->GetNextSiblingWidget(child); } return; } void CFWL_Widget::RemoveStates(uint32_t dwStates) { m_pProperties->m_dwStates &= ~dwStates; } FWL_WidgetHit CFWL_Widget::HitTest(FX_FLOAT fx, FX_FLOAT fy) { if (GetClientRect().Contains(fx, fy)) return FWL_WidgetHit::Client; if (HasEdge() && GetEdgeRect().Contains(fx, fy)) return FWL_WidgetHit::Edge; if (HasBorder() && GetRelativeRect().Contains(fx, fy)) return FWL_WidgetHit::Border; return FWL_WidgetHit::Unknown; } void CFWL_Widget::TransformTo(CFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy) { if (m_pWidgetMgr->IsFormDisabled()) { CFX_SizeF szOffset; if (IsParent(pWidget)) { szOffset = GetOffsetFromParent(pWidget); } else { szOffset = pWidget->GetOffsetFromParent(this); szOffset.x = -szOffset.x; szOffset.y = -szOffset.y; } fx += szOffset.x; fy += szOffset.y; return; } CFX_RectF r; CFX_Matrix m; CFWL_Widget* parent = GetParent(); if (parent) { r = GetWidgetRect(); fx += r.left; fy += r.top; m = GetMatrix(); m.TransformPoint(fx, fy); } CFWL_Widget* form1 = m_pWidgetMgr->GetSystemFormWidget(this); if (!form1) return; if (!pWidget) { r = form1->GetWidgetRect(); fx += r.left; fy += r.top; return; } CFWL_Widget* form2 = m_pWidgetMgr->GetSystemFormWidget(pWidget); if (!form2) return; if (form1 != form2) { r = form1->GetWidgetRect(); fx += r.left; fy += r.top; r = form2->GetWidgetRect(); fx -= r.left; fy -= r.top; } parent = pWidget->GetParent(); if (parent) { CFX_Matrix m1; m1.SetReverse(pWidget->GetMatrix()); m1.TransformPoint(fx, fy); r = pWidget->GetWidgetRect(); fx -= r.left; fy -= r.top; } } CFX_Matrix CFWL_Widget::GetMatrix() { if (!m_pProperties) return CFX_Matrix(); CFWL_Widget* parent = GetParent(); CFX_ArrayTemplate<CFWL_Widget*> parents; while (parent) { parents.Add(parent); parent = parent->GetParent(); } CFX_Matrix matrix; CFX_Matrix ctmOnParent; CFX_RectF rect; int32_t count = parents.GetSize(); for (int32_t i = count - 2; i >= 0; i--) { parent = parents.GetAt(i); if (parent->m_pProperties) ctmOnParent.SetIdentity(); rect = parent->GetWidgetRect(); matrix.Concat(ctmOnParent, true); matrix.Translate(rect.left, rect.top, true); } CFX_Matrix m; m.SetIdentity(); matrix.Concat(m, true); parents.RemoveAll(); return matrix; } IFWL_ThemeProvider* CFWL_Widget::GetThemeProvider() const { return m_pProperties->m_pThemeProvider; } void CFWL_Widget::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) { m_pProperties->m_pThemeProvider = pThemeProvider; } bool CFWL_Widget::IsEnabled() const { return (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) == 0; } bool CFWL_Widget::HasBorder() const { return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Border); } bool CFWL_Widget::HasEdge() const { return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_EdgeMask); } bool CFWL_Widget::IsVisible() const { return (m_pProperties->m_dwStates & FWL_WGTSTATE_Invisible) == 0; } bool CFWL_Widget::IsOverLapper() const { return (m_pProperties->m_dwStyles & FWL_WGTSTYLE_WindowTypeMask) == FWL_WGTSTYLE_OverLapper; } bool CFWL_Widget::IsPopup() const { return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Popup); } bool CFWL_Widget::IsChild() const { return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Child); } bool CFWL_Widget::IsOffscreen() const { return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Offscreen); } CFX_RectF CFWL_Widget::GetEdgeRect() { CFX_RectF rtEdge = m_pProperties->m_rtWidget; rtEdge.left = rtEdge.top = 0; if (HasBorder()) { FX_FLOAT fCX = GetBorderSize(true); FX_FLOAT fCY = GetBorderSize(false); rtEdge.Deflate(fCX, fCY); } return rtEdge; } FX_FLOAT CFWL_Widget::GetBorderSize(bool bCX) { FX_FLOAT* pfBorder = static_cast<FX_FLOAT*>(GetThemeCapacity( bCX ? CFWL_WidgetCapacity::CXBorder : CFWL_WidgetCapacity::CYBorder)); if (!pfBorder) return 0; return *pfBorder; } FX_FLOAT CFWL_Widget::GetEdgeWidth() { CFWL_WidgetCapacity dwCapacity = CFWL_WidgetCapacity::None; switch (m_pProperties->m_dwStyles & FWL_WGTSTYLE_EdgeMask) { case FWL_WGTSTYLE_EdgeFlat: { dwCapacity = CFWL_WidgetCapacity::EdgeFlat; break; } case FWL_WGTSTYLE_EdgeRaised: { dwCapacity = CFWL_WidgetCapacity::EdgeRaised; break; } case FWL_WGTSTYLE_EdgeSunken: { dwCapacity = CFWL_WidgetCapacity::EdgeSunken; break; } } if (dwCapacity != CFWL_WidgetCapacity::None) { FX_FLOAT* fRet = static_cast<FX_FLOAT*>(GetThemeCapacity(dwCapacity)); return fRet ? *fRet : 0; } return 0; } CFX_RectF CFWL_Widget::GetRelativeRect() { CFX_RectF rect = m_pProperties->m_rtWidget; rect.left = 0; rect.top = 0; return rect; } void* CFWL_Widget::GetThemeCapacity(CFWL_WidgetCapacity dwCapacity) { IFWL_ThemeProvider* pTheme = GetAvailableTheme(); if (!pTheme) return nullptr; CFWL_ThemePart part; part.m_pWidget = this; return pTheme->GetCapacity(&part, dwCapacity); } IFWL_ThemeProvider* CFWL_Widget::GetAvailableTheme() { if (m_pProperties->m_pThemeProvider) return m_pProperties->m_pThemeProvider; CFWL_Widget* pUp = this; do { pUp = (pUp->GetStyles() & FWL_WGTSTYLE_Popup) ? m_pWidgetMgr->GetOwnerWidget(pUp) : m_pWidgetMgr->GetParentWidget(pUp); if (pUp) { IFWL_ThemeProvider* pRet = pUp->GetThemeProvider(); if (pRet) return pRet; } } while (pUp); return nullptr; } CFWL_Widget* CFWL_Widget::GetRootOuter() { CFWL_Widget* pRet = m_pOuter; if (!pRet) return nullptr; while (CFWL_Widget* pOuter = pRet->GetOuter()) pRet = pOuter; return pRet; } CFX_SizeF CFWL_Widget::CalcTextSize(const CFX_WideString& wsText, IFWL_ThemeProvider* pTheme, bool bMultiLine) { if (!pTheme) return CFX_SizeF(); CFWL_ThemeText calPart; calPart.m_pWidget = this; calPart.m_wsText = wsText; calPart.m_dwTTOStyles = bMultiLine ? FDE_TTOSTYLE_LineWrap : FDE_TTOSTYLE_SingleLine; calPart.m_iTTOAlign = FDE_TTOALIGNMENT_TopLeft; CFX_RectF rect; FX_FLOAT fWidth = bMultiLine ? FWL_WGT_CalcMultiLineDefWidth : FWL_WGT_CalcWidth; rect.Set(0, 0, fWidth, FWL_WGT_CalcHeight); pTheme->CalcTextRect(&calPart, rect); return CFX_SizeF(rect.width, rect.height); } void CFWL_Widget::CalcTextRect(const CFX_WideString& wsText, IFWL_ThemeProvider* pTheme, uint32_t dwTTOStyles, int32_t iTTOAlign, CFX_RectF& rect) { CFWL_ThemeText calPart; calPart.m_pWidget = this; calPart.m_wsText = wsText; calPart.m_dwTTOStyles = dwTTOStyles; calPart.m_iTTOAlign = iTTOAlign; pTheme->CalcTextRect(&calPart, rect); } void CFWL_Widget::SetFocus(bool bFocus) { if (m_pWidgetMgr->IsFormDisabled()) return; const CFWL_App* pApp = GetOwnerApp(); if (!pApp) return; CFWL_NoteDriver* pDriver = static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver()); if (!pDriver) return; CFWL_Widget* curFocus = pDriver->GetFocus(); if (bFocus && curFocus != this) pDriver->SetFocus(this); else if (!bFocus && curFocus == this) pDriver->SetFocus(nullptr); } void CFWL_Widget::SetGrab(bool bSet) { const CFWL_App* pApp = GetOwnerApp(); if (!pApp) return; CFWL_NoteDriver* pDriver = static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver()); pDriver->SetGrab(this, bSet); } void CFWL_Widget::GetPopupPos(FX_FLOAT fMinHeight, FX_FLOAT fMaxHeight, const CFX_RectF& rtAnchor, CFX_RectF& rtPopup) { if (GetClassID() == FWL_Type::ComboBox) { if (m_pWidgetMgr->IsFormDisabled()) { m_pWidgetMgr->GetAdapterPopupPos(this, fMinHeight, fMaxHeight, rtAnchor, rtPopup); return; } GetPopupPosComboBox(fMinHeight, fMaxHeight, rtAnchor, rtPopup); return; } if (GetClassID() == FWL_Type::DateTimePicker && m_pWidgetMgr->IsFormDisabled()) { m_pWidgetMgr->GetAdapterPopupPos(this, fMinHeight, fMaxHeight, rtAnchor, rtPopup); return; } GetPopupPosGeneral(fMinHeight, fMaxHeight, rtAnchor, rtPopup); } bool CFWL_Widget::GetPopupPosMenu(FX_FLOAT fMinHeight, FX_FLOAT fMaxHeight, const CFX_RectF& rtAnchor, CFX_RectF& rtPopup) { FX_FLOAT fx = 0; FX_FLOAT fy = 0; if (GetStylesEx() & FWL_STYLEEXT_MNU_Vert) { bool bLeft = m_pProperties->m_rtWidget.left < 0; FX_FLOAT fRight = rtAnchor.right() + rtPopup.width; TransformTo(nullptr, fx, fy); if (fRight + fx > 0.0f || bLeft) { rtPopup.Set(rtAnchor.left - rtPopup.width, rtAnchor.top, rtPopup.width, rtPopup.height); } else { rtPopup.Set(rtAnchor.right(), rtAnchor.top, rtPopup.width, rtPopup.height); } } else { FX_FLOAT fBottom = rtAnchor.bottom() + rtPopup.height; TransformTo(nullptr, fx, fy); if (fBottom + fy > 0.0f) { rtPopup.Set(rtAnchor.left, rtAnchor.top - rtPopup.height, rtPopup.width, rtPopup.height); } else { rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), rtPopup.width, rtPopup.height); } } rtPopup.Offset(fx, fy); return true; } bool CFWL_Widget::GetPopupPosComboBox(FX_FLOAT fMinHeight, FX_FLOAT fMaxHeight, const CFX_RectF& rtAnchor, CFX_RectF& rtPopup) { FX_FLOAT fx = 0; FX_FLOAT fy = 0; FX_FLOAT fPopHeight = rtPopup.height; if (rtPopup.height > fMaxHeight) fPopHeight = fMaxHeight; else if (rtPopup.height < fMinHeight) fPopHeight = fMinHeight; FX_FLOAT fWidth = std::max(rtAnchor.width, rtPopup.width); FX_FLOAT fBottom = rtAnchor.bottom() + fPopHeight; TransformTo(nullptr, fx, fy); if (fBottom + fy > 0.0f) rtPopup.Set(rtAnchor.left, rtAnchor.top - fPopHeight, fWidth, fPopHeight); else rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), fWidth, fPopHeight); rtPopup.Offset(fx, fy); return true; } bool CFWL_Widget::GetPopupPosGeneral(FX_FLOAT fMinHeight, FX_FLOAT fMaxHeight, const CFX_RectF& rtAnchor, CFX_RectF& rtPopup) { FX_FLOAT fx = 0; FX_FLOAT fy = 0; TransformTo(nullptr, fx, fy); if (rtAnchor.bottom() + fy > 0.0f) { rtPopup.Set(rtAnchor.left, rtAnchor.top - rtPopup.height, rtPopup.width, rtPopup.height); } else { rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), rtPopup.width, rtPopup.height); } rtPopup.Offset(fx, fy); return true; } void CFWL_Widget::RegisterEventTarget(CFWL_Widget* pEventSource) { const CFWL_App* pApp = GetOwnerApp(); if (!pApp) return; CFWL_NoteDriver* pNoteDriver = pApp->GetNoteDriver(); if (!pNoteDriver) return; pNoteDriver->RegisterEventTarget(this, pEventSource); } void CFWL_Widget::UnregisterEventTarget() { const CFWL_App* pApp = GetOwnerApp(); if (!pApp) return; CFWL_NoteDriver* pNoteDriver = pApp->GetNoteDriver(); if (!pNoteDriver) return; pNoteDriver->UnregisterEventTarget(this); } void CFWL_Widget::DispatchEvent(CFWL_Event* pEvent) { if (m_pOuter) { m_pOuter->GetDelegate()->OnProcessEvent(pEvent); return; } const CFWL_App* pApp = GetOwnerApp(); if (!pApp) return; CFWL_NoteDriver* pNoteDriver = pApp->GetNoteDriver(); if (!pNoteDriver) return; pNoteDriver->SendEvent(pEvent); } void CFWL_Widget::Repaint() { CFX_RectF rect; rect = m_pProperties->m_rtWidget; rect.left = 0; rect.top = 0; RepaintRect(rect); } void CFWL_Widget::RepaintRect(const CFX_RectF& pRect) { m_pWidgetMgr->RepaintWidget(this, pRect); } void CFWL_Widget::DrawBackground(CFX_Graphics* pGraphics, CFWL_Part iPartBk, IFWL_ThemeProvider* pTheme, const CFX_Matrix* pMatrix) { CFWL_ThemeBackground param; param.m_pWidget = this; param.m_iPart = iPartBk; param.m_pGraphics = pGraphics; if (pMatrix) param.m_matrix.Concat(*pMatrix, true); param.m_rtPart = GetRelativeRect(); pTheme->DrawBackground(¶m); } void CFWL_Widget::DrawBorder(CFX_Graphics* pGraphics, CFWL_Part iPartBorder, IFWL_ThemeProvider* pTheme, const CFX_Matrix* pMatrix) { CFWL_ThemeBackground param; param.m_pWidget = this; param.m_iPart = iPartBorder; param.m_pGraphics = pGraphics; if (pMatrix) param.m_matrix.Concat(*pMatrix, true); param.m_rtPart = GetRelativeRect(); pTheme->DrawBackground(¶m); } void CFWL_Widget::DrawEdge(CFX_Graphics* pGraphics, CFWL_Part iPartEdge, IFWL_ThemeProvider* pTheme, const CFX_Matrix* pMatrix) { CFWL_ThemeBackground param; param.m_pWidget = this; param.m_iPart = iPartEdge; param.m_pGraphics = pGraphics; if (pMatrix) param.m_matrix.Concat(*pMatrix, true); param.m_rtPart = GetEdgeRect(); pTheme->DrawBackground(¶m); } void CFWL_Widget::NotifyDriver() { const CFWL_App* pApp = GetOwnerApp(); if (!pApp) return; CFWL_NoteDriver* pDriver = static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver()); if (!pDriver) return; pDriver->NotifyTargetDestroy(this); } CFX_SizeF CFWL_Widget::GetOffsetFromParent(CFWL_Widget* pParent) { if (pParent == this) return CFX_SizeF(); CFWL_WidgetMgr* pWidgetMgr = GetOwnerApp()->GetWidgetMgr(); if (!pWidgetMgr) return CFX_SizeF(); CFX_SizeF szRet(m_pProperties->m_rtWidget.left, m_pProperties->m_rtWidget.top); CFWL_Widget* pDstWidget = GetParent(); while (pDstWidget && pDstWidget != pParent) { CFX_RectF rtDst = pDstWidget->GetWidgetRect(); szRet += CFX_SizeF(rtDst.left, rtDst.top); pDstWidget = pWidgetMgr->GetParentWidget(pDstWidget); } return szRet; } bool CFWL_Widget::IsParent(CFWL_Widget* pParent) { CFWL_Widget* pUpWidget = GetParent(); while (pUpWidget) { if (pUpWidget == pParent) return true; pUpWidget = pUpWidget->GetParent(); } return false; } void CFWL_Widget::OnProcessMessage(CFWL_Message* pMessage) { if (!pMessage->m_pDstTarget) return; CFWL_Widget* pWidget = pMessage->m_pDstTarget; switch (pMessage->GetType()) { case CFWL_Message::Type::Mouse: { CFWL_MessageMouse* pMsgMouse = static_cast<CFWL_MessageMouse*>(pMessage); CFWL_EventMouse evt(pWidget, pWidget); evt.m_dwCmd = pMsgMouse->m_dwCmd; pWidget->DispatchEvent(&evt); break; } default: break; } } void CFWL_Widget::OnProcessEvent(CFWL_Event* pEvent) {} void CFWL_Widget::OnDrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) {}