| // Copyright 2014 The PDFium Authors |
| // 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_widgetmgr.h" |
| |
| #include "build/build_config.h" |
| #include "third_party/base/check.h" |
| #include "xfa/fwl/cfwl_app.h" |
| #include "xfa/fwl/cfwl_message.h" |
| #include "xfa/fwl/cfwl_notedriver.h" |
| #include "xfa/fwl/cfwl_pushbutton.h" |
| |
| CFWL_WidgetMgr::CFWL_WidgetMgr(AdapterIface* pAdapter, CFWL_App* pApp) |
| : m_pAdapter(pAdapter), m_pApp(pApp) { |
| DCHECK(m_pAdapter); |
| m_mapWidgetItem[nullptr] = cppgc::MakeGarbageCollected<Item>( |
| pApp->GetHeap()->GetAllocationHandle(), nullptr); |
| } |
| |
| CFWL_WidgetMgr::~CFWL_WidgetMgr() = default; |
| |
| void CFWL_WidgetMgr::Trace(cppgc::Visitor* visitor) const { |
| visitor->Trace(m_pApp); |
| visitor->Trace(m_pAdapter); |
| for (auto& item : m_mapWidgetItem) |
| visitor->Trace(item.second); |
| } |
| |
| CFWL_Widget* CFWL_WidgetMgr::GetParentWidget(const CFWL_Widget* pWidget) const { |
| Item* pItem = GetWidgetMgrItem(pWidget); |
| if (!pItem) |
| return nullptr; |
| |
| Item* pParent = pItem->GetParent(); |
| return pParent ? pParent->pWidget : nullptr; |
| } |
| |
| CFWL_Widget* CFWL_WidgetMgr::GetPriorSiblingWidget(CFWL_Widget* pWidget) const { |
| Item* pItem = GetWidgetMgrItem(pWidget); |
| if (!pItem) |
| return nullptr; |
| |
| Item* pSibling = pItem->GetPrevSibling(); |
| return pSibling ? pSibling->pWidget : nullptr; |
| } |
| |
| CFWL_Widget* CFWL_WidgetMgr::GetNextSiblingWidget(CFWL_Widget* pWidget) const { |
| Item* pItem = GetWidgetMgrItem(pWidget); |
| if (!pItem) |
| return nullptr; |
| |
| Item* pSibling = pItem->GetNextSibling(); |
| return pSibling ? pSibling->pWidget : nullptr; |
| } |
| |
| CFWL_Widget* CFWL_WidgetMgr::GetFirstChildWidget(CFWL_Widget* pWidget) const { |
| Item* pItem = GetWidgetMgrItem(pWidget); |
| if (!pItem) |
| return nullptr; |
| |
| Item* pChild = pItem->GetFirstChild(); |
| return pChild ? pChild->pWidget : nullptr; |
| } |
| |
| CFWL_Widget* CFWL_WidgetMgr::GetLastChildWidget(CFWL_Widget* pWidget) const { |
| Item* pItem = GetWidgetMgrItem(pWidget); |
| if (!pItem) |
| return nullptr; |
| |
| Item* pChild = pItem->GetLastChild(); |
| return pChild ? pChild->pWidget : nullptr; |
| } |
| |
| void CFWL_WidgetMgr::RepaintWidget(CFWL_Widget* pWidget, |
| const CFX_RectF& rect) { |
| CFWL_Widget* pNative = pWidget; |
| CFX_RectF transformedRect = rect; |
| CFWL_Widget* pOuter = pWidget->GetOuter(); |
| while (pOuter) { |
| CFX_RectF rtTemp = pNative->GetWidgetRect(); |
| transformedRect.left += rtTemp.left; |
| transformedRect.top += rtTemp.top; |
| pNative = pOuter; |
| pOuter = pOuter->GetOuter(); |
| } |
| m_pAdapter->RepaintWidget(pNative); |
| } |
| |
| void CFWL_WidgetMgr::InsertWidget(CFWL_Widget* pParent, CFWL_Widget* pChild) { |
| Item* pParentItem = GetWidgetMgrItem(pParent); |
| if (!pParentItem) { |
| pParentItem = CreateWidgetMgrItem(pParent); |
| GetWidgetMgrRootItem()->AppendLastChild(pParentItem); |
| } |
| Item* pChildItem = GetWidgetMgrItem(pChild); |
| if (!pChildItem) |
| pChildItem = CreateWidgetMgrItem(pChild); |
| pParentItem->AppendLastChild(pChildItem); |
| } |
| |
| void CFWL_WidgetMgr::RemoveWidget(CFWL_Widget* pWidget) { |
| DCHECK(pWidget); |
| Item* pItem = GetWidgetMgrItem(pWidget); |
| if (!pItem) |
| return; |
| |
| while (pItem->GetFirstChild()) |
| RemoveWidget(pItem->GetFirstChild()->pWidget); |
| |
| pItem->RemoveSelfIfParented(); |
| m_mapWidgetItem.erase(pWidget); |
| } |
| |
| CFWL_Widget* CFWL_WidgetMgr::GetWidgetAtPoint(CFWL_Widget* parent, |
| const CFX_PointF& point) const { |
| if (!parent) |
| return nullptr; |
| |
| CFWL_Widget* child = GetLastChildWidget(parent); |
| while (child) { |
| if (child->IsVisible()) { |
| CFX_PointF pos = parent->GetMatrix().GetInverse().Transform(point); |
| CFX_RectF bounds = child->GetWidgetRect(); |
| if (bounds.Contains(pos)) { |
| pos -= bounds.TopLeft(); |
| return GetWidgetAtPoint(child, pos); |
| } |
| } |
| child = GetPriorSiblingWidget(child); |
| } |
| return parent; |
| } |
| |
| CFWL_Widget* CFWL_WidgetMgr::GetDefaultButton(CFWL_Widget* pParent) const { |
| if (pParent->GetClassID() == FWL_Type::PushButton && |
| (pParent->GetStates() & FWL_STATE_PSB_Default)) { |
| return pParent; |
| } |
| |
| CFWL_Widget* child = GetFirstChildWidget(pParent); |
| while (child) { |
| if (child->GetClassID() == FWL_Type::PushButton && |
| (child->GetStates() & FWL_STATE_PSB_Default)) { |
| return child; |
| } |
| if (CFWL_Widget* find = GetDefaultButton(child)) |
| return find; |
| |
| child = GetNextSiblingWidget(child); |
| } |
| return nullptr; |
| } |
| |
| CFWL_WidgetMgr::Item* CFWL_WidgetMgr::GetWidgetMgrRootItem() const { |
| return GetWidgetMgrItem(nullptr); |
| } |
| |
| CFWL_WidgetMgr::Item* CFWL_WidgetMgr::GetWidgetMgrItem( |
| const CFWL_Widget* pWidget) const { |
| auto it = m_mapWidgetItem.find(pWidget); |
| return it != m_mapWidgetItem.end() ? it->second : nullptr; |
| } |
| |
| CFWL_WidgetMgr::Item* CFWL_WidgetMgr::CreateWidgetMgrItem( |
| CFWL_Widget* pWidget) { |
| auto* pItem = cppgc::MakeGarbageCollected<Item>( |
| m_pApp->GetHeap()->GetAllocationHandle(), pWidget); |
| m_mapWidgetItem[pWidget] = pItem; |
| return pItem; |
| } |
| |
| void CFWL_WidgetMgr::GetAdapterPopupPos(CFWL_Widget* pWidget, |
| float fMinHeight, |
| float fMaxHeight, |
| const CFX_RectF& rtAnchor, |
| CFX_RectF* pPopupRect) const { |
| m_pAdapter->GetPopupPos(pWidget, fMinHeight, fMaxHeight, rtAnchor, |
| pPopupRect); |
| } |
| |
| void CFWL_WidgetMgr::OnProcessMessageToForm(CFWL_Message* pMessage) { |
| CFWL_Widget* pDstWidget = pMessage->GetDstTarget(); |
| if (!pDstWidget) |
| return; |
| |
| CFWL_NoteDriver* pNoteDriver = pDstWidget->GetFWLApp()->GetNoteDriver(); |
| pNoteDriver->ProcessMessage(pMessage); |
| } |
| |
| void CFWL_WidgetMgr::OnDrawWidget(CFWL_Widget* pWidget, |
| CFGAS_GEGraphics* pGraphics, |
| const CFX_Matrix& matrix) { |
| if (!pWidget || !pGraphics) |
| return; |
| |
| pWidget->GetDelegate()->OnDrawWidget(pGraphics, matrix); |
| |
| CFX_RectF clipBounds = pGraphics->GetClipRect(); |
| if (!clipBounds.IsEmpty()) |
| DrawChildren(pWidget, clipBounds, pGraphics, matrix); |
| } |
| |
| void CFWL_WidgetMgr::DrawChildren(CFWL_Widget* parent, |
| const CFX_RectF& rtClip, |
| CFGAS_GEGraphics* pGraphics, |
| const CFX_Matrix& mtMatrix) { |
| if (!parent) |
| return; |
| |
| CFWL_Widget* pNextChild = GetFirstChildWidget(parent); |
| while (pNextChild) { |
| CFWL_Widget* child = pNextChild; |
| pNextChild = GetNextSiblingWidget(child); |
| if (!child->IsVisible()) |
| continue; |
| |
| CFX_RectF rtWidget = child->GetWidgetRect(); |
| if (rtWidget.IsEmpty()) |
| continue; |
| |
| CFX_Matrix widgetMatrix; |
| CFX_RectF clipBounds(rtWidget); |
| widgetMatrix.Concat(mtMatrix); |
| widgetMatrix.TranslatePrepend(rtWidget.left, rtWidget.top); |
| |
| if (IFWL_WidgetDelegate* pDelegate = child->GetDelegate()) |
| pDelegate->OnDrawWidget(pGraphics, widgetMatrix); |
| |
| DrawChildren(child, clipBounds, pGraphics, widgetMatrix); |
| } |
| } |
| |
| CFWL_WidgetMgr::Item::Item(CFWL_Widget* widget) : pWidget(widget) {} |
| |
| CFWL_WidgetMgr::Item::~Item() = default; |
| |
| void CFWL_WidgetMgr::Item::Trace(cppgc::Visitor* visitor) const { |
| GCedTreeNode<Item>::Trace(visitor); |
| visitor->Trace(pWidget); |
| } |