// 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 <vector> #include "third_party/base/stl_util.h" #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/cxfa_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 (HasBorder()) { float fBorder = GetBorderSize(true); rect.Inflate(fBorder, fBorder); } } void CFWL_Widget::SetWidgetRect(const CFX_RectF& rect) { m_pProperties->m_rtWidget = rect; } CFX_RectF CFWL_Widget::GetClientRect() { return GetEdgeRect(); } 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(const CFX_PointF& point) { if (GetClientRect().Contains(point)) return FWL_WidgetHit::Client; if (HasBorder() && GetRelativeRect().Contains(point)) return FWL_WidgetHit::Border; return FWL_WidgetHit::Unknown; } CFX_PointF CFWL_Widget::TransformTo(CFWL_Widget* pWidget, const CFX_PointF& point) { if (m_pWidgetMgr->IsFormDisabled()) { CFX_SizeF szOffset; if (IsParent(pWidget)) { szOffset = GetOffsetFromParent(pWidget); } else { szOffset = pWidget->GetOffsetFromParent(this); szOffset.width = -szOffset.width; szOffset.height = -szOffset.height; } return point + CFX_PointF(szOffset.width, szOffset.height); } CFX_PointF ret = point; CFWL_Widget* parent = GetParent(); if (parent) ret = GetMatrix().Transform(ret + GetWidgetRect().TopLeft()); CFWL_Widget* form1 = m_pWidgetMgr->GetSystemFormWidget(this); if (!form1) return ret; if (!pWidget) return ret + form1->GetWidgetRect().TopLeft(); CFWL_Widget* form2 = m_pWidgetMgr->GetSystemFormWidget(pWidget); if (!form2) return ret; if (form1 != form2) { ret += form1->GetWidgetRect().TopLeft(); ret -= form2->GetWidgetRect().TopLeft(); } parent = pWidget->GetParent(); if (!parent) return ret; CFX_Matrix m; m.SetReverse(pWidget->GetMatrix()); return m.Transform(ret) - pWidget->GetWidgetRect().TopLeft(); } CFX_Matrix CFWL_Widget::GetMatrix() { if (!m_pProperties) return CFX_Matrix(); CFWL_Widget* parent = GetParent(); std::vector<CFWL_Widget*> parents; while (parent) { parents.push_back(parent); parent = parent->GetParent(); } CFX_Matrix matrix; CFX_Matrix ctmOnParent; CFX_RectF rect; int32_t count = pdfium::CollectionSize<int32_t>(parents); for (int32_t i = count - 2; i >= 0; i--) { parent = parents[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.clear(); 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::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); } CFX_RectF CFWL_Widget::GetEdgeRect() { CFX_RectF rtEdge(0, 0, m_pProperties->m_rtWidget.width, m_pProperties->m_rtWidget.height); if (HasBorder()) { float fCX = GetBorderSize(true); float fCY = GetBorderSize(false); rtEdge.Deflate(fCX, fCY); } return rtEdge; } float CFWL_Widget::GetBorderSize(bool bCX) { IFWL_ThemeProvider* theme = GetAvailableTheme(); if (!theme) return 0.0f; return bCX ? theme->GetCXBorderSize() : theme->GetCYBorderSize(); } CFX_RectF CFWL_Widget::GetRelativeRect() { return CFX_RectF(0, 0, m_pProperties->m_rtWidget.width, m_pProperties->m_rtWidget.height); } 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; float fWidth = bMultiLine ? FWL_WGT_CalcMultiLineDefWidth : FWL_WGT_CalcWidth; CFX_RectF rect(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(float fMinHeight, 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(float fMinHeight, float fMaxHeight, const CFX_RectF& rtAnchor, CFX_RectF& rtPopup) { if (GetStylesEx() & FWL_STYLEEXT_MNU_Vert) { bool bLeft = m_pProperties->m_rtWidget.left < 0; float fRight = rtAnchor.right() + rtPopup.width; CFX_PointF point = TransformTo(nullptr, CFX_PointF()); if (fRight + point.x > 0.0f || bLeft) { rtPopup = CFX_RectF(rtAnchor.left - rtPopup.width, rtAnchor.top, rtPopup.width, rtPopup.height); } else { rtPopup = CFX_RectF(rtAnchor.right(), rtAnchor.top, rtPopup.width, rtPopup.height); } rtPopup.Offset(point.x, point.y); return true; } float fBottom = rtAnchor.bottom() + rtPopup.height; CFX_PointF point = TransformTo(nullptr, point); if (fBottom + point.y > 0.0f) { rtPopup = CFX_RectF(rtAnchor.left, rtAnchor.top - rtPopup.height, rtPopup.width, rtPopup.height); } else { rtPopup = CFX_RectF(rtAnchor.left, rtAnchor.bottom(), rtPopup.width, rtPopup.height); } rtPopup.Offset(point.x, point.y); return true; } bool CFWL_Widget::GetPopupPosComboBox(float fMinHeight, float fMaxHeight, const CFX_RectF& rtAnchor, CFX_RectF& rtPopup) { float fPopHeight = rtPopup.height; if (rtPopup.height > fMaxHeight) fPopHeight = fMaxHeight; else if (rtPopup.height < fMinHeight) fPopHeight = fMinHeight; float fWidth = std::max(rtAnchor.width, rtPopup.width); float fBottom = rtAnchor.bottom() + fPopHeight; CFX_PointF point = TransformTo(nullptr, CFX_PointF()); if (fBottom + point.y > 0.0f) { rtPopup = CFX_RectF(rtAnchor.left, rtAnchor.top - fPopHeight, fWidth, fPopHeight); } else { rtPopup = CFX_RectF(rtAnchor.left, rtAnchor.bottom(), fWidth, fPopHeight); } rtPopup.Offset(point.x, point.y); return true; } bool CFWL_Widget::GetPopupPosGeneral(float fMinHeight, float fMaxHeight, const CFX_RectF& rtAnchor, CFX_RectF& rtPopup) { CFX_PointF point = TransformTo(nullptr, CFX_PointF()); if (rtAnchor.bottom() + point.y > 0.0f) { rtPopup = CFX_RectF(rtAnchor.left, rtAnchor.top - rtPopup.height, rtPopup.width, rtPopup.height); } else { rtPopup = CFX_RectF(rtAnchor.left, rtAnchor.bottom(), rtPopup.width, rtPopup.height); } rtPopup.Offset(point.x, point.y); 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() { RepaintRect(CFX_RectF(0, 0, m_pProperties->m_rtWidget.width, m_pProperties->m_rtWidget.height)); } 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::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) {}