BeginMenu(): Menus: Fixed a one-frame issue where SetNextWindowXXX data are not consumed by a BeginMenu().

+ Shallow tweaks to reduce diff of future branches. Removing early return also facilitate some changes.
This commit is contained in:
ocornut 2022-10-19 12:07:56 +02:00
parent 5ac94ad898
commit e3fa56ae05
4 changed files with 15 additions and 12 deletions

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@ -154,6 +154,8 @@ Other Changes:
- Menus, Nav: Fixed not being able to close a menu with Left arrow when parent is not a popup. (#5730)
- Menus, Nav: Fixed using left/right navigation when appending to an existing menu (multiple
BeginMenu() call with same names). (#1207)
- Menus: Fixed a one-frame issue where SetNextWindowXXX data are not consumed by a BeginMenu()
returning false (specifically )
- Nav: Fixed moving/resizing window with gamepad or keyboard when running at very high framerate.
- Nav: Pressing Space/GamepadFaceDown on a repeating button uses the same repeating rate as a mouse hold.
- Nav: Fixed an issue opening a menu with Right key from a non-menu window.

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@ -511,7 +511,7 @@ namespace ImGui
IMGUI_API void Image(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0, 0), const ImVec2& uv1 = ImVec2(1, 1), const ImVec4& tint_col = ImVec4(1, 1, 1, 1), const ImVec4& border_col = ImVec4(0, 0, 0, 0));
IMGUI_API bool ImageButton(const char* str_id, ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0, 0), const ImVec2& uv1 = ImVec2(1, 1), const ImVec4& bg_col = ImVec4(0, 0, 0, 0), const ImVec4& tint_col = ImVec4(1, 1, 1, 1));
// Widgets: Combo Box
// Widgets: Combo Box (Dropdown)
// - The BeginCombo()/EndCombo() api allows you to manage your contents and selection state however you want it, by creating e.g. Selectable() items.
// - The old Combo() api are helpers over BeginCombo()/EndCombo() which are kept available for convenience purpose. This is analogous to how ListBox are created.
IMGUI_API bool BeginCombo(const char* label, const char* preview_value, ImGuiComboFlags flags = 0);

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@ -1084,6 +1084,7 @@ static void ShowDemoWindowWidgets()
IMGUI_DEMO_MARKER("Widgets/Combo");
if (ImGui::TreeNode("Combo"))
{
// Combo Boxes are also called "Dropdown" in other systems
// Expose flags as checkbox for the demo
static ImGuiComboFlags flags = 0;
ImGui::CheckboxFlags("ImGuiComboFlags_PopupAlignLeft", &flags, ImGuiComboFlags_PopupAlignLeft);

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@ -6965,9 +6965,9 @@ bool ImGui::BeginMenuEx(const char* label, const char* icon, bool enabled)
// Sub-menus are ChildWindow so that mouse can be hovering across them (otherwise top-most popup menu would steal focus and not allow hovering on parent menu)
// The first menu in a hierarchy isn't so hovering doesn't get across (otherwise e.g. resizing borders with ImGuiButtonFlags_FlattenChildren would react), but top-most BeginMenu() will bypass that limitation.
ImGuiWindowFlags flags = ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoNavFocus;
ImGuiWindowFlags window_flags = ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoNavFocus;
if (window->Flags & ImGuiWindowFlags_ChildMenu)
flags |= ImGuiWindowFlags_ChildWindow;
window_flags |= ImGuiWindowFlags_ChildWindow;
// If a menu with same the ID was already submitted, we will append to it, matching the behavior of Begin().
// We are relying on a O(N) search - so O(N log N) over the frame - which seems like the most efficient for the expected small amount of BeginMenu() calls per frame.
@ -6975,7 +6975,7 @@ bool ImGui::BeginMenuEx(const char* label, const char* icon, bool enabled)
if (g.MenusIdSubmittedThisFrame.contains(id))
{
if (menu_is_open)
menu_is_open = BeginPopupEx(id, flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
menu_is_open = BeginPopupEx(id, window_flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
else
g.NextWindowData.ClearFlags(); // we behave like Begin() and need to consume those values
return menu_is_open;
@ -7112,23 +7112,23 @@ bool ImGui::BeginMenuEx(const char* label, const char* icon, bool enabled)
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Openable | (menu_is_open ? ImGuiItemStatusFlags_Opened : 0));
PopID();
if (!menu_is_open && want_open && g.OpenPopupStack.Size > g.BeginPopupStack.Size)
if (want_open && !menu_is_open && g.OpenPopupStack.Size > g.BeginPopupStack.Size)
{
// Don't recycle same menu level in the same frame, first close the other menu and yield for a frame.
// Don't reopen/recycle same menu level in the same frame, first close the other menu and yield for a frame.
OpenPopup(label);
return false;
}
menu_is_open |= want_open;
if (want_open)
else if (want_open)
{
menu_is_open = true;
OpenPopup(label);
}
if (menu_is_open)
{
ImGuiLastItemData last_item_in_parent = g.LastItemData;
SetNextWindowPos(popup_pos, ImGuiCond_Always); // Note: misleading: the value will serve as reference for FindBestWindowPosForPopup(), not actual pos.
PushStyleVar(ImGuiStyleVar_ChildRounding, style.PopupRounding); // First level will use _PopupRounding, subsequent will use _ChildRounding
menu_is_open = BeginPopupEx(id, flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
menu_is_open = BeginPopupEx(id, window_flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display)
PopStyleVar();
if (menu_is_open)
{