1 files changed, 537 insertions, 0 deletions
diff --git a/xbmc/guilib/GUIControlGroup.cpp b/xbmc/guilib/GUIControlGroup.cpp
new file mode 100644
index 0000000..f737f9f
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+++ b/xbmc/guilib/GUIControlGroup.cpp
@@ -0,0 +1,537 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#include "GUIControlGroup.h"
+
+#include "GUIMessage.h"
+
+#include <cassert>
+#include <utility>
+
+CGUIControlGroup::CGUIControlGroup()
+{
+  m_defaultControl = 0;
+  m_defaultAlways = false;
+  m_focusedControl = 0;
+  m_renderFocusedLast = false;
+  ControlType = GUICONTROL_GROUP;
+}
+
+CGUIControlGroup::CGUIControlGroup(int parentID, int controlID, float posX, float posY, float width, float height)
+: CGUIControlLookup(parentID, controlID, posX, posY, width, height)
+{
+  m_defaultControl = 0;
+  m_defaultAlways = false;
+  m_focusedControl = 0;
+  m_renderFocusedLast = false;
+  ControlType = GUICONTROL_GROUP;
+}
+
+CGUIControlGroup::CGUIControlGroup(const CGUIControlGroup &from)
+: CGUIControlLookup(from)
+{
+  m_defaultControl = from.m_defaultControl;
+  m_defaultAlways = from.m_defaultAlways;
+  m_renderFocusedLast = from.m_renderFocusedLast;
+
+  // run through and add our controls
+  for (auto *i : from.m_children)
+    AddControl(i->Clone());
+
+  // defaults
+  m_focusedControl = 0;
+  ControlType = GUICONTROL_GROUP;
+}
+
+CGUIControlGroup::~CGUIControlGroup(void)
+{
+  ClearAll();
+}
+
+void CGUIControlGroup::AllocResources()
+{
+  CGUIControl::AllocResources();
+  for (auto *control : m_children)
+  {
+    if (!control->IsDynamicallyAllocated())
+      control->AllocResources();
+  }
+}
+
+void CGUIControlGroup::FreeResources(bool immediately)
+{
+  CGUIControl::FreeResources(immediately);
+  for (auto *control : m_children)
+  {
+    control->FreeResources(immediately);
+  }
+}
+
+void CGUIControlGroup::DynamicResourceAlloc(bool bOnOff)
+{
+  for (auto *control : m_children)
+  {
+    control->DynamicResourceAlloc(bOnOff);
+  }
+}
+
+void CGUIControlGroup::Process(unsigned int currentTime, CDirtyRegionList &dirtyregions)
+{
+  CPoint pos(GetPosition());
+  CServiceBroker::GetWinSystem()->GetGfxContext().SetOrigin(pos.x, pos.y);
+
+  CRect rect;
+  for (auto *control : m_children)
+  {
+    control->UpdateVisibility(nullptr);
+    unsigned int oldDirty = dirtyregions.size();
+    control->DoProcess(currentTime, dirtyregions);
+    if (control->IsVisible() || (oldDirty != dirtyregions.size())) // visible or dirty (was visible?)
+      rect.Union(control->GetRenderRegion());
+  }
+
+  CServiceBroker::GetWinSystem()->GetGfxContext().RestoreOrigin();
+  CGUIControl::Process(currentTime, dirtyregions);
+  m_renderRegion = rect;
+}
+
+void CGUIControlGroup::Render()
+{
+  CPoint pos(GetPosition());
+  CServiceBroker::GetWinSystem()->GetGfxContext().SetOrigin(pos.x, pos.y);
+  CGUIControl *focusedControl = NULL;
+  for (auto *control : m_children)
+  {
+    if (m_renderFocusedLast && control->HasFocus())
+      focusedControl = control;
+    else
+      control->DoRender();
+  }
+  if (focusedControl)
+    focusedControl->DoRender();
+  CGUIControl::Render();
+  CServiceBroker::GetWinSystem()->GetGfxContext().RestoreOrigin();
+}
+
+void CGUIControlGroup::RenderEx()
+{
+  for (auto *control : m_children)
+    control->RenderEx();
+  CGUIControl::RenderEx();
+}
+
+bool CGUIControlGroup::OnAction(const CAction &action)
+{
+  assert(false);  // unimplemented
+  return false;
+}
+
+bool CGUIControlGroup::HasFocus() const
+{
+  for (auto *control : m_children)
+  {
+    if (control->HasFocus())
+      return true;
+  }
+  return false;
+}
+
+bool CGUIControlGroup::OnMessage(CGUIMessage& message)
+{
+  switch (message.GetMessage() )
+  {
+  case GUI_MSG_ITEM_SELECT:
+    {
+      if (message.GetControlId() == GetID())
+      {
+        m_focusedControl = message.GetParam1();
+        return true;
+      }
+      break;
+    }
+  case GUI_MSG_ITEM_SELECTED:
+    {
+      if (message.GetControlId() == GetID())
+      {
+        message.SetParam1(m_focusedControl);
+        return true;
+      }
+      break;
+    }
+  case GUI_MSG_FOCUSED:
+    { // a control has been focused
+      m_focusedControl = message.GetControlId();
+      SetFocus(true);
+      // tell our parent thatwe have focus
+      if (m_parentControl)
+        m_parentControl->OnMessage(message);
+      return true;
+    }
+  case GUI_MSG_SETFOCUS:
+    {
+      // first try our last focused control...
+      if (!m_defaultAlways && m_focusedControl)
+      {
+        CGUIControl *control = GetFirstFocusableControl(m_focusedControl);
+        if (control)
+        {
+          CGUIMessage msg(GUI_MSG_SETFOCUS, GetParentID(), control->GetID());
+          return control->OnMessage(msg);
+        }
+      }
+      // ok, no previously focused control, try the default control first
+      if (m_defaultControl)
+      {
+        CGUIControl *control = GetFirstFocusableControl(m_defaultControl);
+        if (control)
+        {
+          CGUIMessage msg(GUI_MSG_SETFOCUS, GetParentID(), control->GetID());
+          return control->OnMessage(msg);
+        }
+      }
+      // no success with the default control, so just find one to focus
+      CGUIControl *control = GetFirstFocusableControl(0);
+      if (control)
+      {
+        CGUIMessage msg(GUI_MSG_SETFOCUS, GetParentID(), control->GetID());
+        return control->OnMessage(msg);
+      }
+      // unsuccessful
+      return false;
+      break;
+    }
+  case GUI_MSG_LOSTFOCUS:
+    {
+      // set all subcontrols unfocused
+      for (auto *control : m_children)
+        control->SetFocus(false);
+      if (!GetControl(message.GetParam1()))
+      { // we don't have the new id, so unfocus
+        SetFocus(false);
+        if (m_parentControl)
+          m_parentControl->OnMessage(message);
+      }
+      return true;
+    }
+    break;
+  case GUI_MSG_PAGE_CHANGE:
+  case GUI_MSG_REFRESH_THUMBS:
+  case GUI_MSG_REFRESH_LIST:
+  case GUI_MSG_WINDOW_RESIZE:
+    { // send to all child controls (make sure the target is the control id)
+      for (auto *control : m_children)
+      {
+        CGUIMessage msg(message.GetMessage(), message.GetSenderId(), control->GetID(), message.GetParam1());
+        control->OnMessage(msg);
+      }
+      return true;
+    }
+    break;
+  case GUI_MSG_REFRESH_TIMER:
+    if (!IsVisible() || !IsVisibleFromSkin())
+      return true;
+    break;
+  }
+  bool handled(false);
+  //not intended for any specific control, send to all childs and our base handler.
+  if (message.GetControlId() == 0)
+  {
+    for (auto *control : m_children)
+    {
+      handled |= control->OnMessage(message);
+    }
+    return CGUIControl::OnMessage(message) || handled;
+  }
+  // if it's intended for us, then so be it
+  if (message.GetControlId() == GetID())
+    return CGUIControl::OnMessage(message);
+
+  return SendControlMessage(message);
+}
+
+bool CGUIControlGroup::SendControlMessage(CGUIMessage &message)
+{
+  IDCollector collector(m_idCollector);
+
+  CGUIControl *ctrl(GetControl(message.GetControlId(), collector.m_collector));
+  // see if a child matches, and send to the child control if so
+  if (ctrl && ctrl->OnMessage(message))
+    return true;
+
+  // Unhandled - send to all matching invisible controls as well
+  bool handled(false);
+  for (auto *control : *collector.m_collector)
+    if (control->OnMessage(message))
+      handled = true;
+
+  return handled;
+}
+
+bool CGUIControlGroup::CanFocus() const
+{
+  if (!CGUIControl::CanFocus()) return false;
+  // see if we have any children that can be focused
+  for (auto *control : m_children)
+  {
+    if (control->CanFocus())
+      return true;
+  }
+  return false;
+}
+
+void CGUIControlGroup::SetInitialVisibility()
+{
+  CGUIControl::SetInitialVisibility();
+  for (auto *control : m_children)
+    control->SetInitialVisibility();
+}
+
+void CGUIControlGroup::QueueAnimation(ANIMATION_TYPE animType)
+{
+  CGUIControl::QueueAnimation(animType);
+  // send window level animations to our children as well
+  if (animType == ANIM_TYPE_WINDOW_OPEN || animType == ANIM_TYPE_WINDOW_CLOSE)
+  {
+    for (auto *control : m_children)
+      control->QueueAnimation(animType);
+  }
+}
+
+void CGUIControlGroup::ResetAnimation(ANIMATION_TYPE animType)
+{
+  CGUIControl::ResetAnimation(animType);
+  // send window level animations to our children as well
+  if (animType == ANIM_TYPE_WINDOW_OPEN || animType == ANIM_TYPE_WINDOW_CLOSE)
+  {
+    for (auto *control : m_children)
+      control->ResetAnimation(animType);
+  }
+}
+
+void CGUIControlGroup::ResetAnimations()
+{ // resets all animations, regardless of condition
+  CGUIControl::ResetAnimations();
+  for (auto *control : m_children)
+    control->ResetAnimations();
+}
+
+bool CGUIControlGroup::IsAnimating(ANIMATION_TYPE animType)
+{
+  if (CGUIControl::IsAnimating(animType))
+    return true;
+
+  if (IsVisible())
+  {
+    for (auto *control : m_children)
+    {
+      if (control->IsAnimating(animType))
+        return true;
+    }
+  }
+  return false;
+}
+
+bool CGUIControlGroup::HasAnimation(ANIMATION_TYPE animType)
+{
+  if (CGUIControl::HasAnimation(animType))
+    return true;
+
+  if (IsVisible())
+  {
+    for (auto *control : m_children)
+    {
+      if (control->HasAnimation(animType))
+        return true;
+    }
+  }
+  return false;
+}
+
+EVENT_RESULT CGUIControlGroup::SendMouseEvent(const CPoint &point, const CMouseEvent &event)
+{
+  // transform our position into child coordinates
+  CPoint childPoint(point);
+  m_transform.InverseTransformPosition(childPoint.x, childPoint.y);
+
+  if (CGUIControl::CanFocus())
+  {
+    CPoint pos(GetPosition());
+    // run through our controls in reverse order (so that last rendered is checked first)
+    for (rControls i = m_children.rbegin(); i != m_children.rend(); ++i)
+    {
+      CGUIControl *child = *i;
+      EVENT_RESULT ret = child->SendMouseEvent(childPoint - pos, event);
+      if (ret)
+      { // we've handled the action, and/or have focused an item
+        return ret;
+      }
+    }
+    // none of our children want the event, but we may want it.
+    EVENT_RESULT ret;
+    if (HitTest(childPoint) && (ret = OnMouseEvent(childPoint, event)))
+      return ret;
+  }
+  m_focusedControl = 0;
+  return EVENT_RESULT_UNHANDLED;
+}
+
+void CGUIControlGroup::UnfocusFromPoint(const CPoint &point)
+{
+  CPoint controlCoords(point);
+  m_transform.InverseTransformPosition(controlCoords.x, controlCoords.y);
+  controlCoords -= GetPosition();
+  for (auto *child : m_children)
+  {
+    child->UnfocusFromPoint(controlCoords);
+  }
+  CGUIControl::UnfocusFromPoint(point);
+}
+
+int CGUIControlGroup::GetFocusedControlID() const
+{
+  if (m_focusedControl) return m_focusedControl;
+  CGUIControl *control = GetFocusedControl();
+  if (control) return control->GetID();
+  return 0;
+}
+
+CGUIControl *CGUIControlGroup::GetFocusedControl() const
+{
+  // try lookup first
+  if (m_focusedControl)
+  {
+    // we may have multiple controls with same id - we pick first that has focus
+    std::pair<LookupMap::const_iterator, LookupMap::const_iterator> range = GetLookupControls(m_focusedControl);
+
+    for (LookupMap::const_iterator i = range.first; i != range.second; ++i)
+    {
+      if (i->second->HasFocus())
+        return i->second;
+    }
+  }
+
+  // if lookup didn't find focused control, iterate m_children to find it
+  for (auto *control : m_children)
+  {
+    // Avoid calling HasFocus() on control group as it will (possibly) recursively
+    // traverse entire group tree just to check if there is focused control.
+    // We are recursively traversing it here so no point in doing it twice.
+    CGUIControlGroup *groupControl(dynamic_cast<CGUIControlGroup*>(control));
+    if (groupControl)
+    {
+      CGUIControl* focusedControl = groupControl->GetFocusedControl();
+      if (focusedControl)
+        return focusedControl;
+    }
+    else if (control->HasFocus())
+      return control;
+  }
+  return NULL;
+}
+
+// in the case of id == 0, we don't match id
+CGUIControl *CGUIControlGroup::GetFirstFocusableControl(int id)
+{
+  if (!CanFocus()) return NULL;
+  if (id && id == GetID()) return this; // we're focusable and they want us
+  for (auto *pControl : m_children)
+  {
+    CGUIControlGroup *group(dynamic_cast<CGUIControlGroup*>(pControl));
+    if (group)
+    {
+      CGUIControl *control = group->GetFirstFocusableControl(id);
+      if (control) return control;
+    }
+    if ((!id || pControl->GetID() == id) && pControl->CanFocus())
+      return pControl;
+  }
+  return NULL;
+}
+
+void CGUIControlGroup::AddControl(CGUIControl *control, int position /* = -1*/)
+{
+  if (!control) return;
+  if (position < 0 || position > (int)m_children.size())
+    position = (int)m_children.size();
+  m_children.insert(m_children.begin() + position, control);
+  control->SetParentControl(this);
+  control->SetControlStats(m_controlStats);
+  control->SetPushUpdates(m_pushedUpdates);
+  AddLookup(control);
+  SetInvalid();
+}
+
+bool CGUIControlGroup::InsertControl(CGUIControl *control, const CGUIControl *insertPoint)
+{
+  // find our position
+  for (unsigned int i = 0; i < m_children.size(); i++)
+  {
+    CGUIControl *child = m_children[i];
+    CGUIControlGroup *group(dynamic_cast<CGUIControlGroup*>(child));
+    if (group && group->InsertControl(control, insertPoint))
+      return true;
+    else if (child == insertPoint)
+    {
+      AddControl(control, i);
+      return true;
+    }
+  }
+  return false;
+}
+
+void CGUIControlGroup::SaveStates(std::vector<CControlState> &states)
+{
+  // save our state, and that of our children
+  states.emplace_back(GetID(), m_focusedControl);
+  for (auto *control : m_children)
+    control->SaveStates(states);
+}
+
+// Note: This routine doesn't delete the control.  It just removes it from the control list
+bool CGUIControlGroup::RemoveControl(const CGUIControl *control)
+{
+  for (iControls it = m_children.begin(); it != m_children.end(); ++it)
+  {
+    CGUIControl *child = *it;
+    CGUIControlGroup *group(dynamic_cast<CGUIControlGroup*>(child));
+    if (group && group->RemoveControl(control))
+      return true;
+    if (control == child)
+    {
+      m_children.erase(it);
+      RemoveLookup(child);
+      SetInvalid();
+      return true;
+    }
+  }
+  return false;
+}
+
+void CGUIControlGroup::ClearAll()
+{
+  // first remove from the lookup table
+  RemoveLookup();
+
+  // and delete all our children
+  for (auto *control : m_children)
+  {
+    delete control;
+  }
+  m_focusedControl = 0;
+  m_children.clear();
+  ClearLookup();
+  SetInvalid();
+}
+
+#ifdef _DEBUG
+void CGUIControlGroup::DumpTextureUse()
+{
+  for (auto *control : m_children)
+    control->DumpTextureUse();
+}
+#endif