sketch out ui event type, to unify type & stream for text ops, nav actions, and all other user inputs

src/df/gfx/df_gfx.c

@@ -4183,7 +4183,7 @@ df_window_update_and_render(Arena *arena, OS_EventList *events, DF_Window *ws, D
             UI_Squish(0.25f-0.25f*ws->autocomp_open_t)
             UI_Transparency(1.f-ws->autocomp_open_t)
           {
-            autocomp_box = ui_build_box_from_stringf(UI_BoxFlag_DefaultFocusNavY|UI_BoxFlag_Clip|UI_BoxFlag_RoundChildrenByParent|UI_BoxFlag_DrawBorder|UI_BoxFlag_DrawBackgroundBlur|UI_BoxFlag_DrawDropShadow|UI_BoxFlag_DrawBackground, "autocomp_box");
+            autocomp_box = ui_build_box_from_stringf(UI_BoxFlag_DefaultFocusNavY|UI_BoxFlag_Clickable|UI_BoxFlag_Clip|UI_BoxFlag_RoundChildrenByParent|UI_BoxFlag_DrawBorder|UI_BoxFlag_DrawBackgroundBlur|UI_BoxFlag_DrawDropShadow|UI_BoxFlag_DrawBackground, "autocomp_box");
           }
           UI_Parent(autocomp_box) UI_WidthFill UI_PrefHeight(ui_px(row_height_px, 1.f)) UI_Font(df_font_from_slot(DF_FontSlot_Code)) UI_HoverCursor(OS_Cursor_HandPoint)
             UI_Focus(UI_FocusKind_Null)

src/ui/ui_core.c

@@ -94,6 +94,78 @@ ui_key_match(UI_Key a, UI_Key b)
   return a.u64[0] == b.u64[0];
 }
 
+////////////////////////////////
+//~ rjf: Event Functions
+
+internal UI_EventNode *
+ui_event_list_push(Arena *arena, UI_EventList *list, UI_Event *v)
+{
+  UI_EventNode *n = push_array(arena, UI_EventNode, 1);
+  MemoryCopyStruct(&n->v, v);
+  n->v.string = push_str8_copy(arena, n->v.string);
+  DLLPushBack(list->first, list->last, n);
+  list->count += 1;
+  return n;
+}
+
+internal void
+ui_eat_event(UI_EventList *list, UI_EventNode *node)
+{
+  DLLRemove(list->first, list->last, node);
+  list->count -= 1;
+}
+
+internal B32
+ui_key_press(UI_EventList *list, OS_EventFlags mods, OS_Key key)
+{
+  B32 result = 0;
+  for(UI_EventNode *n = list->first; n != 0; n = n->next)
+  {
+    if(n->v.kind == UI_EventKind_Press && n->v.key == key && n->v.modifiers == mods)
+    {
+      result = 1;
+      ui_eat_event(list, n);
+      break;
+    }
+  }
+  return result;
+}
+
+internal B32
+ui_key_release(UI_EventList *list, OS_EventFlags mods, OS_Key key)
+{
+  B32 result = 0;
+  for(UI_EventNode *n = list->first; n != 0; n = n->next)
+  {
+    if(n->v.kind == UI_EventKind_Release && n->v.key == key && n->v.modifiers == mods)
+    {
+      result = 1;
+      ui_eat_event(list, n);
+      break;
+    }
+  }
+  return result;
+}
+
+internal B32
+ui_text(UI_EventList *list, U32 character)
+{
+  B32 result = 0;
+  Temp scratch = scratch_begin(0, 0);
+  String8 character_text = str8_from_32(scratch.arena, str32(&character, 1));
+  for(UI_EventNode *n = list->first; n != 0; n = n->next)
+  {
+    if(n->v.kind == UI_EventKind_Text && str8_match(character_text, n->v.string, 0))
+    {
+      result = 1;
+      ui_eat_event(list, n);
+      break;
+    }
+  }
+  scratch_end(scratch);
+  return result;
+}
+
 ////////////////////////////////
 //~ rjf: Navigation Action List Building & Consumption Functions
 

src/ui/ui_core.h

@@ -56,6 +56,94 @@ typedef enum UI_FocusKind
 }
 UI_FocusKind;
 
+////////////////////////////////
+//~ rjf: Events
+
+typedef enum UI_EventKind
+{
+  UI_EventKind_Null,
+  UI_EventKind_Press,
+  UI_EventKind_Release,
+  UI_EventKind_Text,
+  UI_EventKind_Scroll,
+  UI_EventKind_COUNT
+}
+UI_EventKind;
+
+typedef U32 UI_EventFlags;
+enum
+{
+  UI_EventFlag_KeepMark            = (1<<0),
+  UI_EventFlag_Delete              = (1<<1),
+  UI_EventFlag_Copy                = (1<<2),
+  UI_EventFlag_Paste               = (1<<3),
+  UI_EventFlag_ZeroDeltaOnSelect   = (1<<4),
+  UI_EventFlag_PickSelectSide      = (1<<5),
+  UI_EventFlag_CapAtLine           = (1<<6),
+  UI_EventFlag_ExplicitDirectional = (1<<7),
+};
+
+typedef enum UI_EventDeltaUnit
+{
+  UI_EventDeltaUnit_Char,
+  UI_EventDeltaUnit_Word,
+  UI_EventDeltaUnit_Line,
+  UI_EventDeltaUnit_Whole,
+  UI_EventDeltaUnit_COUNT
+}
+UI_EventDeltaUnit;
+
+typedef struct UI_Event UI_Event;
+struct UI_Event
+{
+  UI_EventKind kind;
+  UI_EventFlags flags;
+  UI_EventDeltaUnit delta_unit;
+  OS_Key key;
+  OS_EventFlags modifiers;
+  String8 string;
+  Vec2F32 pos;
+  Vec2F32 delta_2f32;
+  Vec2S32 delta_2s32;
+};
+
+typedef struct UI_EventNode UI_EventNode;
+struct UI_EventNode
+{
+  UI_EventNode *next;
+  UI_EventNode *prev;
+  UI_Event v;
+};
+
+typedef struct UI_EventList UI_EventList;
+struct UI_EventList
+{
+  UI_EventNode *first;
+  UI_EventNode *last;
+  U64 count;
+};
+
+////////////////////////////////
+//~ rjf: Textual Operations
+
+typedef U32 UI_TxtOpFlags;
+enum
+{
+  UI_TxtOpFlag_Invalid = (1<<0),
+  UI_TxtOpFlag_Copy    = (1<<1),
+};
+
+typedef struct UI_TxtOp UI_TxtOp;
+struct UI_TxtOp
+{
+  UI_TxtOpFlags flags;
+  String8 replace;
+  String8 copy;
+  TxtRng range;
+  TxtPt cursor;
+  TxtPt mark;
+};
+
 ////////////////////////////////
 //~ rjf: Navigation Types
 
@@ -541,6 +629,15 @@ internal UI_Key  ui_key_from_string(UI_Key seed_key, String8 string);
 internal UI_Key  ui_key_from_stringf(UI_Key seed_key, char *fmt, ...);
 internal B32     ui_key_match(UI_Key a, UI_Key b);
 
+////////////////////////////////
+//~ rjf: Event Functions
+
+internal UI_EventNode *ui_event_list_push(Arena *arena, UI_EventList *list, UI_Event *v);
+internal void ui_eat_event(UI_EventList *list, UI_EventNode *node);
+internal B32 ui_key_press(UI_EventList *list, OS_EventFlags mods, OS_Key key);
+internal B32 ui_key_release(UI_EventList *list, OS_EventFlags mods, OS_Key key);
+internal B32 ui_text(UI_EventList *list, U32 character);
+
 ////////////////////////////////
 //~ rjf: Navigation Action List Building & Consumption Functions