Merge branch 'master' into docking

# Conflicts:
#	backends/imgui_impl_vulkan.cpp
#	imgui_internal.h

backends/imgui_impl_metal.mm

@@ -154,6 +154,7 @@ bool ImGui_ImplMetal_Init(id<MTLDevice> device)
 void ImGui_ImplMetal_Shutdown()
 {
     ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    IM_UNUSED(bd);
     IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
     ImGui_ImplMetal_ShutdownMultiViewportSupport();
     ImGui_ImplMetal_DestroyDeviceObjects();

backends/imgui_impl_vulkan.cpp

@@ -28,6 +28,7 @@
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
 //  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-01-09: Vulkan: Added IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE to clarify how many image sampler descriptors are expected to be available in descriptor pool. (#6642)
 //  2025-01-06: Vulkan: Added more ImGui_ImplVulkanH_XXXX helper functions to simplify our examples.
 //  2024-12-11: Vulkan: Fixed setting VkSwapchainCreateInfoKHR::preTransform for platforms not supporting VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR. (#8222)
 //  2024-11-27: Vulkan: Make user-provided descriptor pool optional. As a convenience, when setting init_info->DescriptorPoolSize the backend will create one itself. (#8172, #4867)
@@ -1052,8 +1053,9 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
         check_vk_result(err);
     }
 
-    if (v->DescriptorPoolSize)
+    if (v->DescriptorPoolSize != 0)
     {
+        IM_ASSERT(v->DescriptorPoolSize > IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE);
         VkDescriptorPoolSize pool_size = { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, v->DescriptorPoolSize };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;

backends/imgui_impl_vulkan.h

@@ -62,14 +62,16 @@
 #define IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
 #endif
 
+// Current version of the backend use 1 descriptor for the font atlas + as many as additional calls done to ImGui_ImplVulkan_AddTexture().
+// It is expected that as early as Q1 2025 the backend will use a few more descriptors. Use this value + number of desired calls to ImGui_ImplVulkan_AddTexture().
+#define IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE   (1)     // Minimum per atlas
+
 // Initialization data, for ImGui_ImplVulkan_Init()
 // [Please zero-clear before use!]
 // - About descriptor pool:
 //   - A VkDescriptorPool should be created with VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
 //     and must contain a pool size large enough to hold a small number of VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER descriptors.
 //   - As an convenience, by setting DescriptorPoolSize > 0 the backend will create one for you.
-//   - Current version of the backend use 1 descriptor for the font atlas + as many as additional calls done to ImGui_ImplVulkan_AddTexture().
-//   - It is expected that as early as Q1 2025 the backend will use a few more descriptors, so aim at 10 + number of desierd calls to ImGui_ImplVulkan_AddTexture().
 // - About dynamic rendering:
 //   - When using dynamic rendering, set UseDynamicRendering=true and fill PipelineRenderingCreateInfo structure.
 struct ImGui_ImplVulkan_InitInfo

docs/CHANGELOG.txt

@@ -43,8 +43,19 @@ Breaking changes:
 
 Other changes:
 
+- Fixed issues with IsItemDeactivated() and IsItemDeactivatedAfterEdit() not
+  emitting a reliable signal when an item is deactivated externally: e.g.
+  via an explicit clear of focus, clear of active id, opening of modal etc.
+  (#5184, #5904, #6766, #8303, #8004)
+  - It used to work when the interruption happened in the frame before the
+    active item as submitted, but not after. It should work in both cases now.
+  - While this is not specific to a certain widgets, typically it would
+    mostly be noticeable on InputText() because it keeps ActiveId for a
+    longer time while allowing other interaction to happen.
 - Error Handling: Fixed bugs recovering from within a table that created
   a child window, and from nested child windows. (#1651)
+- Error Handling: Turned common EndTable() and other TableXXX functions
+  fail cases into a recoverable error. (#1651, #8314)
 - InputText: Fixed a bug where character replacements performed from a callback
   were not applied when pasting from clipbard. (#8229)
 - InputText: Fixed issue when activating a ReadOnly field when the underlying
@@ -79,6 +90,10 @@ Other changes:
   platforms not supporting VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR. (#8222) [@Zer0xFF]
 - Backends: Vulkan: Added a few more ImGui_ImplVulkanH_XXX helper functions
   primarily for the purpose of making our examples simpler.
+- Backends: Vulkan: Added IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE to clarify
+  how many image sampler descriptors are expected to be available in the provided
+  descriptor pool. Current backend needs 1 but it is expected that by end of Q1 2025
+  this number will grow (will staying a very small number). (#6642)
 - Backends: DX11: Expose vertex constant buffer in ImGui_ImplDX11_RenderState.
   Reset projection matrix in ImDrawCallback_ResetRenderState handlers. (#6969, #5834, #7468, #3590)
 - Backends: DX10: Expose ImGui_ImplDX10_RenderState for completeness. (#6969, #5834, #7468, #3590)
@@ -156,11 +171,12 @@ Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v
 Breaking changes:
 
 - Commented out pre-1.87 IO system (equivalent to using IMGUI_DISABLE_OBSOLETE_KEYIO or IMGUI_DISABLE_OBSOLETE_FUNCTIONS before).
-  - io.KeyMap[] and io.KeysDown[] are removed (obsoleted February 2022).
+  - io.KeyMap[] and io.KeysDown[] are removed (obsoleted February 2022). Use IsKeyDown() instead.
   - io.NavInputs[] and ImGuiNavInput are removed (obsoleted July 2022).
   - Pre-1.87 backends are not supported:
     - backends need to call io.AddKeyEvent(), io.AddMouseEvent() instead of writing to io.KeysDown[], io.MouseDown[] fields.
     - backends need to call io.AddKeyAnalogEvent() for gamepad values instead of writing to io.NavInputs[] fields.
+    - you can use IsKeyDown() instead of reading from io.KeysDown[].
   - For more references:
     - read 1.87 and 1.88 part of API BREAKING CHANGES in imgui.cpp or read Changelog for 1.87 and 1.88.
     - read https://github.com/ocornut/imgui/issues/4921
@@ -2656,6 +2672,7 @@ Breaking Changes:
   - For all calls to IO new functions, the Dear ImGui context should be bound/current.
 - Reworked IO keyboard input API: (#4921, #2625, #3724) [@thedmd, @ocornut]
   - Added io.AddKeyEvent() function, obsoleting writing directly to io.KeyMap[], io.KeysDown[] arrays.
+  - You can use IsKeyDown() instead of reading from io.KeysDown[].
   - For keyboard modifiers, you can call io.AddKeyEvent() with ImGuiKey_ModXXX values,
     obsoleting writing directly to io.KeyCtrl, io.KeyShift etc.
   - Added io.SetKeyEventNativeData() function (optional) to pass native and old legacy indices.

examples/example_glfw_vulkan/main.cpp

@@ -189,17 +189,18 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     }
 
     // Create Descriptor Pool
-    // The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
-    // If you wish to load e.g. additional textures you may need to alter pools sizes.
+    // If you wish to load e.g. additional textures you may need to alter pools sizes and maxSets.
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 },
+            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
         pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
-        pool_info.maxSets = 1;
+        pool_info.maxSets = 0;
+        for (VkDescriptorPoolSize& pool_size : pool_sizes)
+            pool_info.maxSets += pool_size.descriptorCount;
         pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);

examples/example_sdl2_vulkan/main.cpp

@@ -177,17 +177,18 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     }
 
     // Create Descriptor Pool
-    // The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
-    // If you wish to load e.g. additional textures you may need to alter pools sizes.
+    // If you wish to load e.g. additional textures you may need to alter pools sizes and maxSets.
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 },
+            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
         pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
-        pool_info.maxSets = 1;
+        pool_info.maxSets = 0;
+        for (VkDescriptorPoolSize& pool_size : pool_sizes)
+            pool_info.maxSets += pool_size.descriptorCount;
         pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);

examples/example_sdl3_vulkan/main.cpp

@@ -182,17 +182,18 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     }
 
     // Create Descriptor Pool
-    // The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
-    // If you wish to load e.g. additional textures you may need to alter pools sizes.
+    // If you wish to load e.g. additional textures you may need to alter pools sizes and maxSets.
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 },
+            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
         pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
-        pool_info.maxSets = 1;
+        pool_info.maxSets = 0;
+        for (VkDescriptorPoolSize& pool_size : pool_sizes)
+            pool_info.maxSets += pool_size.descriptorCount;
         pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);

examples/example_win32_vulkan/main.cpp

@@ -178,17 +178,18 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     }
 
     // Create Descriptor Pool
-    // The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
-    // If you wish to load e.g. additional textures you may need to alter pools sizes.
+    // If you wish to load e.g. additional textures you may need to alter pools sizes and maxSets.
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 },
+            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
         pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
-        pool_info.maxSets = 1;
+        pool_info.maxSets = 0;
+        for (VkDescriptorPoolSize& pool_size : pool_sizes)
+            pool_info.maxSets += pool_size.descriptorCount;
         pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);

imgui.cpp

@@ -658,7 +658,7 @@ CODE
                         - Backend writing to io.MouseHoveredViewport   -> backend should call io.AddMouseViewportEvent() [Docking branch w/ multi-viewports only]
                        note: for all calls to IO new functions, the Dear ImGui context should be bound/current.
                        read https://github.com/ocornut/imgui/issues/4921 for details.
- - 2022/01/10 (1.87) - inputs: reworked keyboard IO. Removed io.KeyMap[], io.KeysDown[] in favor of calling io.AddKeyEvent(). Removed GetKeyIndex(), now unnecessary. All IsKeyXXX() functions now take ImGuiKey values. All features are still functional until IMGUI_DISABLE_OBSOLETE_KEYIO is defined. Read Changelog and Release Notes for details.
+ - 2022/01/10 (1.87) - inputs: reworked keyboard IO. Removed io.KeyMap[], io.KeysDown[] in favor of calling io.AddKeyEvent(), ImGui::IsKeyDown(). Removed GetKeyIndex(), now unnecessary. All IsKeyXXX() functions now take ImGuiKey values. All features are still functional until IMGUI_DISABLE_OBSOLETE_KEYIO is defined. Read Changelog and Release Notes for details.
                         - IsKeyPressed(MY_NATIVE_KEY_XXX)              -> use IsKeyPressed(ImGuiKey_XXX)
                         - IsKeyPressed(GetKeyIndex(ImGuiKey_XXX))      -> use IsKeyPressed(ImGuiKey_XXX)
                         - Backend writing to io.KeyMap[],io.KeysDown[] -> backend should call io.AddKeyEvent() (+ call io.SetKeyEventNativeData() if you want legacy user code to stil function with legacy key codes).
@@ -4002,9 +4002,7 @@ ImGuiContext::ImGuiContext(ImFontAtlas* shared_font_atlas)
     ActiveIdSource = ImGuiInputSource_None;
     ActiveIdMouseButton = -1;
     ActiveIdPreviousFrame = 0;
-    ActiveIdPreviousFrameIsAlive = false;
-    ActiveIdPreviousFrameHasBeenEditedBefore = false;
-    ActiveIdPreviousFrameWindow = NULL;
+    memset(&DeactivatedItemData, 0, sizeof(DeactivatedItemData));
     memset(&ActiveIdValueOnActivation, 0, sizeof(ActiveIdValueOnActivation));
     LastActiveId = 0;
     LastActiveIdTimer = 0.0f;
@@ -4270,7 +4268,7 @@ void ImGui::Shutdown()
     g.WindowsById.Clear();
     g.NavWindow = NULL;
     g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL;
-    g.ActiveIdWindow = g.ActiveIdPreviousFrameWindow = NULL;
+    g.ActiveIdWindow = NULL;
     g.MovingWindow = NULL;
 
     g.KeysRoutingTable.Clear();
@@ -4460,6 +4458,13 @@ void ImGui::SetActiveID(ImGuiID id, ImGuiWindow* window)
             g.MovingWindow = NULL;
         }
 
+        // Store deactivate data
+        ImGuiDeactivatedItemData* deactivated_data = &g.DeactivatedItemData;
+        deactivated_data->ID = g.ActiveId;
+        deactivated_data->ElapseFrame = (g.LastItemData.ID == g.ActiveId) ? g.FrameCount : g.FrameCount + 1; // FIXME: OK to use LastItemData?
+        deactivated_data->HasBeenEditedBefore = g.ActiveIdHasBeenEditedBefore;
+        deactivated_data->IsAlive = (g.ActiveIdIsAlive == g.ActiveId);
+
         // This could be written in a more general way (e.g associate a hook to ActiveId),
         // but since this is currently quite an exception we'll leave it as is.
         // One common scenario leading to this is: pressing Key ->NavMoveRequestApplyResult() -> ClearActiveID()
@@ -5378,11 +5383,8 @@ void ImGui::NewFrame()
         g.ActiveIdTimer += g.IO.DeltaTime;
     g.LastActiveIdTimer += g.IO.DeltaTime;
     g.ActiveIdPreviousFrame = g.ActiveId;
-    g.ActiveIdPreviousFrameWindow = g.ActiveIdWindow;
-    g.ActiveIdPreviousFrameHasBeenEditedBefore = g.ActiveIdHasBeenEditedBefore;
     g.ActiveIdIsAlive = 0;
     g.ActiveIdHasBeenEditedThisFrame = false;
-    g.ActiveIdPreviousFrameIsAlive = false;
     g.ActiveIdIsJustActivated = false;
     if (g.TempInputId != 0 && g.ActiveId != g.TempInputId)
         g.TempInputId = 0;
@@ -5391,6 +5393,9 @@ void ImGui::NewFrame()
         g.ActiveIdUsingNavDirMask = 0x00;
         g.ActiveIdUsingAllKeyboardKeys = false;
     }
+    if (g.DeactivatedItemData.ElapseFrame < g.FrameCount)
+        g.DeactivatedItemData.ID = 0;
+    g.DeactivatedItemData.IsAlive = false;
 
     // Record when we have been stationary as this state is preserved while over same item.
     // FIXME: The way this is expressed means user cannot alter HoverStationaryDelay during the frame to use varying values.
@@ -6101,13 +6106,13 @@ bool ImGui::IsItemDeactivated()
     ImGuiContext& g = *GImGui;
     if (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_HasDeactivated)
         return (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Deactivated) != 0;
-    return (g.ActiveIdPreviousFrame == g.LastItemData.ID && g.ActiveIdPreviousFrame != 0 && g.ActiveId != g.LastItemData.ID);
+    return (g.DeactivatedItemData.ID == g.LastItemData.ID && g.LastItemData.ID != 0 && g.DeactivatedItemData.ElapseFrame >= g.FrameCount);
 }
 
 bool ImGui::IsItemDeactivatedAfterEdit()
 {
     ImGuiContext& g = *GImGui;
-    return IsItemDeactivated() && (g.ActiveIdPreviousFrameHasBeenEditedBefore || (g.ActiveId == 0 && g.ActiveIdHasBeenEditedBefore));
+    return IsItemDeactivated() && g.DeactivatedItemData.HasBeenEditedBefore;
 }
 
 // == (GetItemID() == GetFocusID() && GetFocusID() != 0)
@@ -11115,8 +11120,8 @@ void ImGui::KeepAliveID(ImGuiID id)
     ImGuiContext& g = *GImGui;
     if (g.ActiveId == id)
         g.ActiveIdIsAlive = id;
-    if (g.ActiveIdPreviousFrame == id)
-        g.ActiveIdPreviousFrameIsAlive = true;
+    if (g.DeactivatedItemData.ID == id)
+        g.DeactivatedItemData.IsAlive = true;
 }
 
 // Declare item bounding box for clipping and interaction.
@@ -11201,6 +11206,9 @@ bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg, ImGu
     //    window->DrawList->AddRect(g.LastItemData.NavRect.Min, g.LastItemData.NavRect.Max, IM_COL32(255,255,0,255)); // [DEBUG]
 #endif
 
+    if (id != 0 && g.DeactivatedItemData.ID == id)
+        g.DeactivatedItemData.ElapseFrame = g.FrameCount;
+
     // We need to calculate this now to take account of the current clipping rectangle (as items like Selectable may change them)
     if (is_rect_visible)
         g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Visible;
@@ -11560,7 +11568,7 @@ void ImGui::BeginGroup()
     group_data.BackupActiveIdIsAlive = g.ActiveIdIsAlive;
     group_data.BackupHoveredIdIsAlive = g.HoveredId != 0;
     group_data.BackupIsSameLine = window->DC.IsSameLine;
-    group_data.BackupActiveIdPreviousFrameIsAlive = g.ActiveIdPreviousFrameIsAlive;
+    group_data.BackupDeactivatedIdIsAlive = g.DeactivatedItemData.IsAlive;
     group_data.EmitItem = true;
 
     window->DC.GroupOffset.x = window->DC.CursorPos.x - window->Pos.x - window->DC.ColumnsOffset.x;
@@ -11611,11 +11619,11 @@ void ImGui::EndGroup()
     // Also if you grep for LastItemId you'll notice it is only used in that context.
     // (The two tests not the same because ActiveIdIsAlive is an ID itself, in order to be able to handle ActiveId being overwritten during the frame.)
     const bool group_contains_curr_active_id = (group_data.BackupActiveIdIsAlive != g.ActiveId) && (g.ActiveIdIsAlive == g.ActiveId) && g.ActiveId;
-    const bool group_contains_prev_active_id = (group_data.BackupActiveIdPreviousFrameIsAlive == false) && (g.ActiveIdPreviousFrameIsAlive == true);
+    const bool group_contains_deactivated_id = (group_data.BackupDeactivatedIdIsAlive == false) && (g.DeactivatedItemData.IsAlive == true);
     if (group_contains_curr_active_id)
         g.LastItemData.ID = g.ActiveId;
-    else if (group_contains_prev_active_id)
-        g.LastItemData.ID = g.ActiveIdPreviousFrame;
+    else if (group_contains_deactivated_id)
+        g.LastItemData.ID = g.DeactivatedItemData.ID;
     g.LastItemData.Rect = group_bb;
 
     // Forward Hovered flag
@@ -11629,7 +11637,7 @@ void ImGui::EndGroup()
 
     // Forward Deactivated flag
     g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HasDeactivated;
-    if (group_contains_prev_active_id && g.ActiveId != g.ActiveIdPreviousFrame)
+    if (group_contains_deactivated_id)
         g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_Deactivated;
 
     g.GroupStack.pop_back();

imgui.h

@@ -29,7 +29,7 @@
 // Library Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
 #define IMGUI_VERSION       "1.91.7 WIP"
-#define IMGUI_VERSION_NUM   19164
+#define IMGUI_VERSION_NUM   19165
 #define IMGUI_HAS_TABLE
 #define IMGUI_HAS_VIEWPORT          // Viewport WIP branch
 #define IMGUI_HAS_DOCK              // Docking WIP branch

imgui_internal.h

@@ -140,6 +140,7 @@ struct ImGuiContext;                // Main Dear ImGui context
 struct ImGuiContextHook;            // Hook for extensions like ImGuiTestEngine
 struct ImGuiDataVarInfo;            // Variable information (e.g. to access style variables from an enum)
 struct ImGuiDataTypeInfo;           // Type information associated to a ImGuiDataType enum
+struct ImGuiDeactivatedItemData;    // Data for IsItemDeactivated()/IsItemDeactivatedAfterEdit() function.
 struct ImGuiDockContext;            // Docking system context
 struct ImGuiDockRequest;            // Docking system dock/undock queued request
 struct ImGuiDockNode;               // Docking system node (hold a list of Windows OR two child dock nodes)
@@ -1081,7 +1082,7 @@ struct IMGUI_API ImGuiGroupData
     ImVec2      BackupCurrLineSize;
     float       BackupCurrLineTextBaseOffset;
     ImGuiID     BackupActiveIdIsAlive;
-    bool        BackupActiveIdPreviousFrameIsAlive;
+    bool        BackupDeactivatedIdIsAlive;
     bool        BackupHoveredIdIsAlive;
     bool        BackupIsSameLine;
     bool        EmitItem;
@@ -1266,11 +1267,11 @@ struct ImGuiNextItemData
 struct ImGuiLastItemData
 {
     ImGuiID                 ID;
-    ImGuiItemFlags          ItemFlags;          // See ImGuiItemFlags_
+    ImGuiItemFlags          ItemFlags;          // See ImGuiItemFlags_ (called 'InFlags' before v1.91.4).
     ImGuiItemStatusFlags    StatusFlags;        // See ImGuiItemStatusFlags_
     ImRect                  Rect;               // Full rectangle
     ImRect                  NavRect;            // Navigation scoring rectangle (not displayed)
-    // Rarely used fields are not explicitly cleared, only valid when the corresponding ImGuiItemStatusFlags ar set.
+    // Rarely used fields are not explicitly cleared, only valid when the corresponding ImGuiItemStatusFlags are set.
     ImRect                  DisplayRect;        // Display rectangle. ONLY VALID IF (StatusFlags & ImGuiItemStatusFlags_HasDisplayRect) is set.
     ImRect                  ClipRect;           // Clip rectangle at the time of submitting item. ONLY VALID IF (StatusFlags & ImGuiItemStatusFlags_HasClipRect) is set..
     ImGuiKeyChord           Shortcut;           // Shortcut at the time of submitting item. ONLY VALID IF (StatusFlags & ImGuiItemStatusFlags_HasShortcut) is set..
@@ -1333,6 +1334,15 @@ struct ImGuiPtrOrIndex
     ImGuiPtrOrIndex(int index)  { Ptr = NULL; Index = index; }
 };
 
+// Data used by IsItemDeactivated()/IsItemDeactivatedAfterEdit() functions
+struct ImGuiDeactivatedItemData
+{
+    ImGuiID     ID;
+    int         ElapseFrame;
+    bool        HasBeenEditedBefore;
+    bool        IsAlive;
+};
+
 //-----------------------------------------------------------------------------
 // [SECTION] Popup support
 //-----------------------------------------------------------------------------
@@ -2302,9 +2312,7 @@ struct ImGuiContext
     ImGuiWindow*            ActiveIdWindow;
     ImGuiInputSource        ActiveIdSource;                     // Activating source: ImGuiInputSource_Mouse OR ImGuiInputSource_Keyboard OR ImGuiInputSource_Gamepad
     ImGuiID                 ActiveIdPreviousFrame;
-    bool                    ActiveIdPreviousFrameIsAlive;
-    bool                    ActiveIdPreviousFrameHasBeenEditedBefore;
-    ImGuiWindow*            ActiveIdPreviousFrameWindow;
+    ImGuiDeactivatedItemData DeactivatedItemData;
     ImGuiDataTypeStorage    ActiveIdValueOnActivation;          // Backup of initial value at the time of activation. ONLY SET BY SPECIFIC WIDGETS: DragXXX and SliderXXX.
     ImGuiID                 LastActiveId;                       // Store the last non-zero ActiveId, useful for animation.
     float                   LastActiveIdTimer;                  // Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.

imgui_tables.cpp

@@ -1337,7 +1337,11 @@ void    ImGui::EndTable()
 {
     ImGuiContext& g = *GImGui;
     ImGuiTable* table = g.CurrentTable;
-    IM_ASSERT(table != NULL && "Only call EndTable() if BeginTable() returns true!");
+    if (table == NULL)
+    {
+        IM_ASSERT_USER_ERROR(table != NULL, "EndTable() call should only be done while in BeginTable() scope!");
+        return;
+    }
 
     // This assert would be very useful to catch a common error... unfortunately it would probably trigger in some
     // cases, and for consistency user may sometimes output empty tables (and still benefit from e.g. outer border)
@@ -1560,8 +1564,12 @@ void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, flo
 {
     ImGuiContext& g = *GImGui;
     ImGuiTable* table = g.CurrentTable;
-    IM_ASSERT(table != NULL && "Need to call TableSetupColumn() after BeginTable()!");
-    IM_ASSERT(table->IsLayoutLocked == false && "Need to call call TableSetupColumn() before first row!");
+    if (table == NULL)
+    {
+        IM_ASSERT_USER_ERROR(table != NULL, "Call should only be done while in BeginTable() scope!");
+        return;
+    }
+    IM_ASSERT(table->IsLayoutLocked == false && "Need to call TableSetupColumn() before first row!");
     IM_ASSERT((flags & ImGuiTableColumnFlags_StatusMask_) == 0 && "Illegal to pass StatusMask values to TableSetupColumn()");
     if (table->DeclColumnsCount >= table->ColumnsCount)
     {
@@ -1634,7 +1642,11 @@ void ImGui::TableSetupScrollFreeze(int columns, int rows)
 {
     ImGuiContext& g = *GImGui;
     ImGuiTable* table = g.CurrentTable;
-    IM_ASSERT(table != NULL && "Need to call TableSetupColumn() after BeginTable()!");
+    if (table == NULL)
+    {
+        IM_ASSERT_USER_ERROR(table != NULL, "Call should only be done while in BeginTable() scope!");
+        return;
+    }
     IM_ASSERT(table->IsLayoutLocked == false && "Need to call TableSetupColumn() before first row!");
     IM_ASSERT(columns >= 0 && columns < IMGUI_TABLE_MAX_COLUMNS);
     IM_ASSERT(rows >= 0 && rows < 128); // Arbitrary limit
@@ -1711,9 +1723,11 @@ void ImGui::TableSetColumnEnabled(int column_n, bool enabled)
 {
     ImGuiContext& g = *GImGui;
     ImGuiTable* table = g.CurrentTable;
-    IM_ASSERT(table != NULL);
-    if (!table)
+    if (table == NULL)
+    {
+        IM_ASSERT_USER_ERROR(table != NULL, "Call should only be done while in BeginTable() scope!");
         return;
+    }
     IM_ASSERT(table->Flags & ImGuiTableFlags_Hideable); // See comments above
     if (column_n < 0)
         column_n = table->CurrentColumn;
@@ -3034,7 +3048,11 @@ void ImGui::TableHeadersRow()
 {
     ImGuiContext& g = *GImGui;
     ImGuiTable* table = g.CurrentTable;
-    IM_ASSERT(table != NULL && "Need to call TableHeadersRow() after BeginTable()!");
+    if (table == NULL)
+    {
+        IM_ASSERT_USER_ERROR(table != NULL, "Call should only be done while in BeginTable() scope!");
+        return;
+    }
 
     // Call layout if not already done. This is automatically done by TableNextRow: we do it here _only_ to make
     // it easier to debug-step in TableUpdateLayout(). Your own version of this function doesn't need this.
@@ -3079,7 +3097,12 @@ void ImGui::TableHeader(const char* label)
         return;
 
     ImGuiTable* table = g.CurrentTable;
-    IM_ASSERT(table != NULL && "Need to call TableHeader() after BeginTable()!");
+    if (table == NULL)
+    {
+        IM_ASSERT_USER_ERROR(table != NULL, "Call should only be done while in BeginTable() scope!");
+        return;
+    }
+
     IM_ASSERT(table->CurrentColumn != -1);
     const int column_n = table->CurrentColumn;
     ImGuiTableColumn* column = &table->Columns[column_n];
@@ -3254,7 +3277,11 @@ void ImGui::TableAngledHeadersRowEx(ImGuiID row_id, float angle, float max_label
     ImGuiTable* table = g.CurrentTable;
     ImGuiWindow* window = g.CurrentWindow;
     ImDrawList* draw_list = window->DrawList;
-    IM_ASSERT(table != NULL && "Need to call TableHeadersRow() after BeginTable()!");
+    if (table == NULL)
+    {
+        IM_ASSERT_USER_ERROR(table != NULL, "Call should only be done while in BeginTable() scope!");
+        return;
+    }
     IM_ASSERT(table->CurrentRow == -1 && "Must be first row");
 
     if (max_label_width == 0.0f)