File size: 5,419 Bytes
7fd553e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | // Copyright Epic Games, Inc. All Rights Reserved.
#include "LyraTabListWidgetBase.h"
#include "CommonAnimatedSwitcher.h"
#include "CommonButtonBase.h"
#include UE_INLINE_GENERATED_CPP_BY_NAME(LyraTabListWidgetBase)
void ULyraTabListWidgetBase::NativeOnInitialized()
{
Super::NativeOnInitialized();
}
void ULyraTabListWidgetBase::NativeConstruct()
{
Super::NativeConstruct();
SetupTabs();
}
void ULyraTabListWidgetBase::NativeDestruct()
{
for (FLyraTabDescriptor& TabInfo : PreregisteredTabInfoArray)
{
if (TabInfo.CreatedTabContentWidget)
{
TabInfo.CreatedTabContentWidget->RemoveFromParent();
TabInfo.CreatedTabContentWidget = nullptr;
}
}
Super::NativeDestruct();
}
bool ULyraTabListWidgetBase::GetPreregisteredTabInfo(const FName TabNameId, FLyraTabDescriptor& OutTabInfo)
{
const FLyraTabDescriptor* const FoundTabInfo = PreregisteredTabInfoArray.FindByPredicate([&](FLyraTabDescriptor& TabInfo) -> bool
{
return TabInfo.TabId == TabNameId;
});
if (!FoundTabInfo)
{
return false;
}
OutTabInfo = *FoundTabInfo;
return true;
}
void ULyraTabListWidgetBase::SetTabHiddenState(FName TabNameId, bool bHidden)
{
for (FLyraTabDescriptor& TabInfo : PreregisteredTabInfoArray)
{
if (TabInfo.TabId == TabNameId)
{
TabInfo.bHidden = bHidden;
break;
}
}
}
bool ULyraTabListWidgetBase::RegisterDynamicTab(const FLyraTabDescriptor& TabDescriptor)
{
// If it's hidden we just ignore it.
if (TabDescriptor.bHidden)
{
return true;
}
PendingTabLabelInfoMap.Add(TabDescriptor.TabId, TabDescriptor);
return RegisterTab(TabDescriptor.TabId, TabDescriptor.TabButtonType, TabDescriptor.CreatedTabContentWidget);
}
void ULyraTabListWidgetBase::HandlePreLinkedSwitcherChanged()
{
for (const FLyraTabDescriptor& TabInfo : PreregisteredTabInfoArray)
{
// Remove tab content widget from linked switcher, as it is being disassociated.
if (TabInfo.CreatedTabContentWidget)
{
TabInfo.CreatedTabContentWidget->RemoveFromParent();
}
}
Super::HandlePreLinkedSwitcherChanged();
}
void ULyraTabListWidgetBase::HandlePostLinkedSwitcherChanged()
{
if (!IsDesignTime() && GetCachedWidget().IsValid())
{
// Don't bother making tabs if we're in the designer or haven't been constructed yet
SetupTabs();
}
Super::HandlePostLinkedSwitcherChanged();
}
void ULyraTabListWidgetBase::HandleTabCreation_Implementation(FName TabId, UCommonButtonBase* TabButton)
{
FLyraTabDescriptor* TabInfoPtr = nullptr;
FLyraTabDescriptor TabInfo;
if (GetPreregisteredTabInfo(TabId, TabInfo))
{
TabInfoPtr = &TabInfo;
}
else
{
TabInfoPtr = PendingTabLabelInfoMap.Find(TabId);
}
if (TabButton->GetClass()->ImplementsInterface(ULyraTabButtonInterface::StaticClass()))
{
if (ensureMsgf(TabInfoPtr, TEXT("A tab button was created with id %s but no label info was specified. RegisterDynamicTab should be used over RegisterTab to provide label info."), *TabId.ToString()))
{
ILyraTabButtonInterface::Execute_SetTabLabelInfo(TabButton, *TabInfoPtr);
}
}
PendingTabLabelInfoMap.Remove(TabId);
}
bool ULyraTabListWidgetBase::IsFirstTabActive() const
{
if (PreregisteredTabInfoArray.Num() > 0)
{
return GetActiveTab() == PreregisteredTabInfoArray[0].TabId;
}
return false;
}
bool ULyraTabListWidgetBase::IsLastTabActive() const
{
if (PreregisteredTabInfoArray.Num() > 0)
{
return GetActiveTab() == PreregisteredTabInfoArray.Last().TabId;
}
return false;
}
bool ULyraTabListWidgetBase::IsTabVisible(FName TabId)
{
if (const UCommonButtonBase* Button = GetTabButtonBaseByID(TabId))
{
const ESlateVisibility TabVisibility = Button->GetVisibility();
return (TabVisibility == ESlateVisibility::Visible
|| TabVisibility == ESlateVisibility::HitTestInvisible
|| TabVisibility == ESlateVisibility::SelfHitTestInvisible);
}
return false;
}
int32 ULyraTabListWidgetBase::GetVisibleTabCount()
{
int32 Result = 0;
const int32 TabCount = GetTabCount();
for ( int32 Index = 0; Index < TabCount; Index++ )
{
if (IsTabVisible(GetTabIdAtIndex( Index )))
{
Result++;
}
}
return Result;
}
void ULyraTabListWidgetBase::SetupTabs()
{
for (FLyraTabDescriptor& TabInfo : PreregisteredTabInfoArray)
{
if (TabInfo.bHidden)
{
continue;
}
// If the tab content hasn't been created already, create it.
if (!TabInfo.CreatedTabContentWidget && TabInfo.TabContentType)
{
TabInfo.CreatedTabContentWidget = CreateWidget<UCommonUserWidget>(GetOwningPlayer(), TabInfo.TabContentType);
OnTabContentCreatedNative.Broadcast(TabInfo.TabId, Cast<UCommonUserWidget>(TabInfo.CreatedTabContentWidget));
OnTabContentCreated.Broadcast(TabInfo.TabId, Cast<UCommonUserWidget>(TabInfo.CreatedTabContentWidget));
}
if (UCommonAnimatedSwitcher* CurrentLinkedSwitcher = GetLinkedSwitcher())
{
// Add the tab content to the newly linked switcher.
if (!CurrentLinkedSwitcher->HasChild(TabInfo.CreatedTabContentWidget))
{
CurrentLinkedSwitcher->AddChild(TabInfo.CreatedTabContentWidget);
}
}
// If the tab is not already registered, register it.
if (GetTabButtonBaseByID(TabInfo.TabId) == nullptr)
{
RegisterTab(TabInfo.TabId, TabInfo.TabButtonType, TabInfo.CreatedTabContentWidget);
}
}
}
|