From 797d5df85046283669ec51cbb128c537ad9c1bd5 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf@nereid.pl>
Date: Thu, 22 Dec 2022 17:39:30 +0100
Subject: [PATCH] Push key events to ImGui.

---
 profiler/src/BackendWayland.cpp | 137 ++++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)

diff --git a/profiler/src/BackendWayland.cpp b/profiler/src/BackendWayland.cpp
index e06711c3..57a4c116 100644
--- a/profiler/src/BackendWayland.cpp
+++ b/profiler/src/BackendWayland.cpp
@@ -28,6 +28,137 @@
 #include "Backend.hpp"
 #include "RunQueue.hpp"
 
+constexpr ImGuiKey s_keyTable[] = {
+    /*   0 */ ImGuiKey_None,
+    /*   1 */ ImGuiKey_Escape,
+    /*   2 */ ImGuiKey_1,
+    /*   3 */ ImGuiKey_2,
+    /*   4 */ ImGuiKey_3,
+    /*   5 */ ImGuiKey_4,
+    /*   6 */ ImGuiKey_5,
+    /*   7 */ ImGuiKey_6,
+    /*   8 */ ImGuiKey_7,
+    /*   9 */ ImGuiKey_8,
+    /*  10 */ ImGuiKey_9,
+    /*  11 */ ImGuiKey_0,
+    /*  12 */ ImGuiKey_Minus,
+    /*  13 */ ImGuiKey_Equal,
+    /*  14 */ ImGuiKey_Backspace,
+    /*  15 */ ImGuiKey_Tab,
+    /*  16 */ ImGuiKey_Q,
+    /*  17 */ ImGuiKey_W,
+    /*  18 */ ImGuiKey_E,
+    /*  19 */ ImGuiKey_R,
+    /*  20 */ ImGuiKey_T,
+    /*  21 */ ImGuiKey_Y,
+    /*  22 */ ImGuiKey_U,
+    /*  23 */ ImGuiKey_I,
+    /*  24 */ ImGuiKey_O,
+    /*  25 */ ImGuiKey_P,
+    /*  26 */ ImGuiKey_LeftBracket,
+    /*  27 */ ImGuiKey_RightBracket,
+    /*  28 */ ImGuiKey_Enter,
+    /*  29 */ ImGuiKey_LeftCtrl,
+    /*  30 */ ImGuiKey_A,
+    /*  31 */ ImGuiKey_S,
+    /*  32 */ ImGuiKey_D,
+    /*  33 */ ImGuiKey_F,
+    /*  34 */ ImGuiKey_G,
+    /*  35 */ ImGuiKey_H,
+    /*  36 */ ImGuiKey_J,
+    /*  37 */ ImGuiKey_K,
+    /*  38 */ ImGuiKey_L,
+    /*  39 */ ImGuiKey_Semicolon,
+    /*  40 */ ImGuiKey_Apostrophe,
+    /*  41 */ ImGuiKey_GraveAccent,
+    /*  42 */ ImGuiKey_LeftShift,
+    /*  43 */ ImGuiKey_Backslash,
+    /*  44 */ ImGuiKey_Z,
+    /*  45 */ ImGuiKey_X,
+    /*  46 */ ImGuiKey_C,
+    /*  47 */ ImGuiKey_V,
+    /*  48 */ ImGuiKey_B,
+    /*  49 */ ImGuiKey_N,
+    /*  50 */ ImGuiKey_M,
+    /*  51 */ ImGuiKey_Comma,
+    /*  52 */ ImGuiKey_Period,
+    /*  53 */ ImGuiKey_Slash,
+    /*  54 */ ImGuiKey_RightShift,
+    /*  55 */ ImGuiKey_KeypadMultiply,
+    /*  56 */ ImGuiKey_LeftAlt,
+    /*  57 */ ImGuiKey_Space,
+    /*  58 */ ImGuiKey_CapsLock,
+    /*  59 */ ImGuiKey_F1,
+    /*  60 */ ImGuiKey_F2,
+    /*  61 */ ImGuiKey_F3,
+    /*  62 */ ImGuiKey_F4,
+    /*  63 */ ImGuiKey_F5,
+    /*  64 */ ImGuiKey_F6,
+    /*  65 */ ImGuiKey_F7,
+    /*  66 */ ImGuiKey_F8,
+    /*  67 */ ImGuiKey_F9,
+    /*  68 */ ImGuiKey_F10,
+    /*  69 */ ImGuiKey_NumLock,
+    /*  70 */ ImGuiKey_ScrollLock,
+    /*  71 */ ImGuiKey_Keypad7,
+    /*  72 */ ImGuiKey_Keypad8,
+    /*  73 */ ImGuiKey_Keypad9,
+    /*  74 */ ImGuiKey_KeypadSubtract,
+    /*  75 */ ImGuiKey_Keypad4,
+    /*  76 */ ImGuiKey_Keypad5,
+    /*  77 */ ImGuiKey_Keypad6,
+    /*  78 */ ImGuiKey_KeypadAdd,
+    /*  79 */ ImGuiKey_Keypad1,
+    /*  80 */ ImGuiKey_Keypad2,
+    /*  81 */ ImGuiKey_Keypad3,
+    /*  82 */ ImGuiKey_Keypad0,
+    /*  83 */ ImGuiKey_KeypadDecimal,
+    /*  84 */ ImGuiKey_RightAlt,
+    /*  85 */ ImGuiKey_None,
+    /*  86 */ ImGuiKey_Backslash,
+    /*  87 */ ImGuiKey_F11,
+    /*  88 */ ImGuiKey_F12,
+    /*  89 */ ImGuiKey_None,
+    /*  90 */ ImGuiKey_None,
+    /*  91 */ ImGuiKey_None,
+    /*  92 */ ImGuiKey_None,
+    /*  93 */ ImGuiKey_None,
+    /*  94 */ ImGuiKey_None,
+    /*  95 */ ImGuiKey_None,
+    /*  96 */ ImGuiKey_KeypadEnter,
+    /*  97 */ ImGuiKey_RightCtrl,
+    /*  98 */ ImGuiKey_KeypadDivide,
+    /*  99 */ ImGuiKey_PrintScreen,
+    /* 100 */ ImGuiKey_RightAlt,
+    /* 101 */ ImGuiKey_None,
+    /* 102 */ ImGuiKey_Home,
+    /* 103 */ ImGuiKey_UpArrow,
+    /* 104 */ ImGuiKey_PageUp,
+    /* 105 */ ImGuiKey_LeftArrow,
+    /* 106 */ ImGuiKey_RightArrow,
+    /* 107 */ ImGuiKey_End,
+    /* 108 */ ImGuiKey_DownArrow,
+    /* 109 */ ImGuiKey_PageDown,
+    /* 110 */ ImGuiKey_Insert,
+    /* 111 */ ImGuiKey_Delete,
+    /* 112 */ ImGuiKey_None,
+    /* 113 */ ImGuiKey_None,
+    /* 114 */ ImGuiKey_None,
+    /* 115 */ ImGuiKey_None,
+    /* 116 */ ImGuiKey_None,
+    /* 117 */ ImGuiKey_KeypadEqual,
+    /* 118 */ ImGuiKey_None,
+    /* 119 */ ImGuiKey_Pause,
+    /* 120 */ ImGuiKey_None,
+    /* 121 */ ImGuiKey_KeypadDecimal,
+    /* 122 */ ImGuiKey_None,
+    /* 123 */ ImGuiKey_None,
+    /* 124 */ ImGuiKey_None,
+    /* 125 */ ImGuiKey_LeftSuper,
+    /* 126 */ ImGuiKey_RightSuper,
+    /* 127 */ ImGuiKey_Menu,
+};
+
 static std::function<void()> s_redraw;
 static RunQueue* s_mainThreadTasks;
 
@@ -229,6 +360,12 @@ static xkb_keysym_t Compose( const xkb_keysym_t sym )
 
 static void KeyboardKey( void*, struct wl_keyboard* kbd, uint32_t serial, uint32_t time, uint32_t key, uint32_t state )
 {
+    auto& io = ImGui::GetIO();
+    if( key < ( sizeof( s_keyTable ) / sizeof( *s_keyTable ) ) )
+    {
+        io.AddKeyEvent( s_keyTable[key], state == WL_KEYBOARD_KEY_STATE_PRESSED );
+    }
+
     if( state == WL_KEYBOARD_KEY_STATE_PRESSED )
     {
         const xkb_keysym_t* keysyms;