InputText: On Mac OS X, support Cmd+Shift+Z for Redo. Cmd+Y is also supported as major apps seems to default to support both. (#1765)

CHANGELOG.txt

@@ -53,7 +53,8 @@ Other Changes:
 - Window: Fixed windows using the ImGuiWindowFlags_NoSavedSettings flag from not using the same default position as other windows. (#1760)
 - Columns: Fixed a bug introduced in 1.51 where columns would affect the contents size of their container, often creating feedback loops when ImGuiWindowFlags_AlwaysAutoResize was used. (#1760)
 - MenuBar: Made BeginMainMenuBar() honor style.DisplaySafeAreaPadding so the text can be made visible on TV settings that don't display all pixels. (#1439) [@dougbinks]
-- InputText: On a Mac, filter out characters when the Cmd modifier is held. (#1747) [@sivu]
+- InputText: On Mac OS X, filter out characters when the Cmd modifier is held. (#1747) [@sivu]
+- InputText: On Mac OS X, support Cmd+Shift+Z for Redo. Cmd+Y is also supported as major apps seems to default to support both. (#1765) [@lfnoise]
 - Style: Changed default style.DisplaySafeAreaPadding values from (4,4) to (3,3) so it is smaller than FramePadding and has no effect on main menu bar on a computer. (#1439)
 - Examples: Allegro 5: Added support for 32-bit indices setup via defining ImDrawIdx, to avoid an unecessary conversion (Allegro 5 doesn't support 16-bit indices).
 - Examples: Allegro 5: Renamed bindings from imgui_impl_a5.cpp to imgui_impl_allegro5.cpp.

imgui.cpp

@@ -10115,6 +10115,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
         const int k_mask = (io.KeyShift ? STB_TEXTEDIT_K_SHIFT : 0);
         const bool is_osx = io.OptMacOSXBehaviors;
         const bool is_shortcut_key = (is_osx ? (io.KeySuper && !io.KeyCtrl) : (io.KeyCtrl && !io.KeySuper)) && !io.KeyAlt && !io.KeyShift; // OS X style: Shortcuts using Cmd/Super instead of Ctrl
+        const bool is_osx_shift_shortcut = is_osx && io.KeySuper && io.KeyShift && !io.KeyCtrl && !io.KeyAlt;
         const bool is_wordmove_key_down = is_osx ? io.KeyAlt : io.KeyCtrl;                     // OS X style: Text editing cursor movement using Alt instead of Ctrl
         const bool is_startend_key_down = is_osx && io.KeySuper && !io.KeyCtrl && !io.KeyAlt;  // OS X style: Line/Text Start and End using Cmd+Arrows instead of Home/End
         const bool is_ctrl_key_only = io.KeyCtrl && !io.KeyShift && !io.KeyAlt && !io.KeySuper;
@@ -10123,8 +10124,8 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
         const bool is_cut   = ((is_shortcut_key && IsKeyPressedMap(ImGuiKey_X)) || (is_shift_key_only && IsKeyPressedMap(ImGuiKey_Delete))) && is_editable && !is_password && (!is_multiline || edit_state.HasSelection());
         const bool is_copy  = ((is_shortcut_key && IsKeyPressedMap(ImGuiKey_C)) || (is_ctrl_key_only  && IsKeyPressedMap(ImGuiKey_Insert))) && !is_password && (!is_multiline || edit_state.HasSelection());
         const bool is_paste = ((is_shortcut_key && IsKeyPressedMap(ImGuiKey_V)) || (is_shift_key_only && IsKeyPressedMap(ImGuiKey_Insert))) && is_editable;
-        const bool is_undo  = (is_shortcut_key && IsKeyPressedMap(ImGuiKey_Z) && is_editable && is_undoable);
-        const bool is_redo  = (is_shortcut_key && IsKeyPressedMap(ImGuiKey_Y) && is_editable && is_undoable);
+        const bool is_undo  = ((is_shortcut_key && IsKeyPressedMap(ImGuiKey_Z)) && is_editable && is_undoable);
+        const bool is_redo  = ((is_shortcut_key && IsKeyPressedMap(ImGuiKey_Y)) || (is_osx_shift_shortcut && IsKeyPressedMap(ImGuiKey_Z))) && is_editable && is_undoable;
 
         if (IsKeyPressedMap(ImGuiKey_LeftArrow))                        { edit_state.OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINESTART : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDLEFT : STB_TEXTEDIT_K_LEFT) | k_mask); }
         else if (IsKeyPressedMap(ImGuiKey_RightArrow))                  { edit_state.OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINEEND : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDRIGHT : STB_TEXTEDIT_K_RIGHT) | k_mask); }