feat: improve MTK input boxes, right-click context menus

2026-05-06 08:03:14 +02:00
parent f19e97966d
commit 8997164203
15 changed files with 1337 additions and 256 deletions
@@ -44,6 +44,7 @@ struct Theme {
    Color accent_soft;
    Color accent_fg;
    Color selection;
+    Color text_selection;

    Color danger;
    Color danger_hover;
@@ -85,6 +86,7 @@ inline Theme make_theme(Color accent = colors::ACCENT) {
    theme.accent_soft = lighten(accent, 214);
    theme.accent_fg = colors::WHITE;
    theme.selection = accent;
+    theme.text_selection = Color::from_rgb(0xB0, 0xD0, 0xF0);

    theme.danger = Color::from_rgb(0xD0, 0x3E, 0x3E);
    theme.danger_hover = Color::from_rgb(0xDD, 0x44, 0x44);
@@ -6,7 +6,10 @@

 #pragma once

+#include <Api/Syscall.hpp>
+
 #include "gui/canvas.hpp"
+#include "gui/clipboard.hpp"
 #include "gui/font.hpp"
 #include "gui/mtk/theme.hpp"

@@ -26,6 +29,52 @@ struct WidgetState {
    bool enabled;
 };

+struct ContextMenuState {
+    bool open;
+    int x;
+    int y;
+    int hover;
+};
+
+struct ContextMenuItem {
+    const char* label;
+    int id;
+    bool enabled;
+};
+
+enum ContextMenuResult : int {
+    CONTEXT_MENU_NONE      = -1,
+    CONTEXT_MENU_CONSUMED  = -2,
+    CONTEXT_MENU_DISMISSED = -3,
+};
+
+static constexpr int CONTEXT_MENU_DEFAULT_W = 140;
+static constexpr int CONTEXT_MENU_ITEM_H = 24;
+static constexpr int CONTEXT_MENU_PAD_Y = 4;
+
+struct TextInputState {
+    int cursor;
+    int selection_anchor;
+    bool dragging;
+    ContextMenuState context;
+};
+
+using TextInputCharFilter = bool (*)(char ch, void* userdata);
+
+enum TextInputResult : uint8_t {
+    TEXT_INPUT_NONE     = 0,
+    TEXT_INPUT_CONSUMED = 1,
+    TEXT_INPUT_CHANGED  = 2,
+};
+
+enum TextInputContextItem : int {
+    TEXT_INPUT_CTX_CUT = 0,
+    TEXT_INPUT_CTX_COPY,
+    TEXT_INPUT_CTX_PASTE,
+    TEXT_INPUT_CTX_DELETE,
+    TEXT_INPUT_CTX_COUNT,
+};
+
 inline WidgetState widget_state(bool active = false, bool hovered = false, bool enabled = true) {
    return {active, hovered, enabled};
 }
@@ -36,12 +85,595 @@ struct ButtonColors {
    Color fg;
 };

+inline void context_menu_reset(ContextMenuState& state) {
+    state.open = false;
+    state.x = 0;
+    state.y = 0;
+    state.hover = -1;
+}
+
+inline void context_menu_open(ContextMenuState& state, int x, int y) {
+    state.open = true;
+    state.x = x;
+    state.y = y;
+    state.hover = -1;
+}
+
+inline void context_menu_close(ContextMenuState& state) {
+    state.open = false;
+    state.hover = -1;
+}
+
+inline int context_menu_height(int item_count,
+                               int item_h = CONTEXT_MENU_ITEM_H) {
+    return gui_max(item_count, 0) * item_h + CONTEXT_MENU_PAD_Y * 2;
+}
+
+inline Rect context_menu_rect(const ContextMenuState& state,
+                              int item_count,
+                              int view_w,
+                              int view_h,
+                              int menu_w = CONTEXT_MENU_DEFAULT_W,
+                              int item_h = CONTEXT_MENU_ITEM_H) {
+    int menu_h = context_menu_height(item_count, item_h);
+    int x = state.x;
+    int y = state.y;
+    if (x + menu_w > view_w) x = view_w - menu_w;
+    if (y + menu_h > view_h) y = view_h - menu_h;
+    if (x < 0) x = 0;
+    if (y < 0) y = 0;
+    return {x, y, menu_w, menu_h};
+}
+
+inline int context_menu_hit_item(const ContextMenuState& state,
+                                 int item_count,
+                                 int mx,
+                                 int my,
+                                 int view_w,
+                                 int view_h,
+                                 int menu_w = CONTEXT_MENU_DEFAULT_W,
+                                 int item_h = CONTEXT_MENU_ITEM_H) {
+    if (!state.open || item_count <= 0) return -1;
+    Rect menu = context_menu_rect(state, item_count, view_w, view_h,
+                                  menu_w, item_h);
+    Rect items = {menu.x + 2, menu.y + CONTEXT_MENU_PAD_Y,
+                  menu.w - 4, item_count * item_h};
+    if (!items.contains(mx, my)) return -1;
+    return (my - items.y) / item_h;
+}
+
+inline int context_menu_handle_mouse(ContextMenuState& state,
+                                     const ContextMenuItem* items,
+                                     int item_count,
+                                     int mx,
+                                     int my,
+                                     uint8_t buttons,
+                                     uint8_t prev_buttons,
+                                     int view_w,
+                                     int view_h,
+                                     int menu_w = CONTEXT_MENU_DEFAULT_W,
+                                     int item_h = CONTEXT_MENU_ITEM_H) {
+    if (!state.open) return CONTEXT_MENU_NONE;
+
+    bool left_pressed = (buttons & 1) && !(prev_buttons & 1);
+    bool right_pressed = (buttons & 2) && !(prev_buttons & 2);
+    state.hover = context_menu_hit_item(state, item_count, mx, my,
+                                        view_w, view_h, menu_w, item_h);
+
+    if (left_pressed) {
+        int hover = state.hover;
+        context_menu_close(state);
+        if (hover >= 0 && hover < item_count && items && items[hover].enabled)
+            return items[hover].id;
+        return CONTEXT_MENU_DISMISSED;
+    }
+
+    if (right_pressed) {
+        context_menu_close(state);
+        return CONTEXT_MENU_DISMISSED;
+    }
+
+    return CONTEXT_MENU_CONSUMED;
+}
+
+inline int context_menu_label_height(TrueTypeFont* font = nullptr,
+                                     int font_size = 0) {
+    if (font && font->valid && font_size > 0)
+        return font->get_line_height(font_size);
+    return system_font_height();
+}
+
+inline void context_menu_draw_label(Canvas& c,
+                                    int x,
+                                    int y,
+                                    const char* label,
+                                    Color color,
+                                    TrueTypeFont* font = nullptr,
+                                    int font_size = 0) {
+    if (font && font->valid && font_size > 0) {
+        font->draw_to_buffer(c.pixels, c.w, c.h, x, y, label, color, font_size);
+        return;
+    }
+    c.text(x, y, label, color);
+}
+
+inline void draw_context_menu(Canvas& c,
+                              const ContextMenuState& state,
+                              const ContextMenuItem* items,
+                              int item_count,
+                              const Theme& theme,
+                              int menu_w = CONTEXT_MENU_DEFAULT_W,
+                              int item_h = CONTEXT_MENU_ITEM_H,
+                              TrueTypeFont* font = nullptr,
+                              int font_size = 0) {
+    if (!state.open || !items || item_count <= 0) return;
+
+    Rect menu = context_menu_rect(state, item_count, c.w, c.h,
+                                  menu_w, item_h);
+    c.fill_rect(menu.x + 2, menu.y + 2, menu.w, menu.h,
+                Color::from_rgb(0x80, 0x80, 0x80));
+    c.fill_rounded_rect(menu.x, menu.y, menu.w, menu.h, 4,
+                        colors::MENU_BG);
+    c.rect(menu.x, menu.y, menu.w, menu.h, theme.border);
+
+    int fh = context_menu_label_height(font, font_size);
+    for (int i = 0; i < item_count; i++) {
+        Rect item = {menu.x + 2, menu.y + CONTEXT_MENU_PAD_Y + i * item_h,
+                     menu.w - 4, item_h};
+        if (state.hover == i)
+            c.fill_rect(item.x, item.y, item.w, item.h, colors::MENU_HOVER);
+
+        Color label_color = items[i].enabled ? theme.text : theme.text_muted;
+        context_menu_draw_label(c, menu.x + 12, item.y + (item.h - fh) / 2,
+                                items[i].label, label_color, font, font_size);
+    }
+}
+
 inline int text_len(const char* text) {
    int len = 0;
    while (text && text[len]) len++;
    return len;
 }

+inline int text_input_len(const char* text, int cap = 0) {
+    int len = 0;
+    int limit = cap > 0 ? cap - 1 : 0x7FFFFFFF;
+    while (text && text[len] && len < limit) len++;
+    return len;
+}
+
+inline int text_input_clamp_cursor(int cursor, int len) {
+    return gui_clamp(cursor, 0, gui_max(len, 0));
+}
+
+inline void text_input_reset(TextInputState& state, int cursor = 0) {
+    state.cursor = gui_max(cursor, 0);
+    state.selection_anchor = state.cursor;
+    state.dragging = false;
+    context_menu_reset(state.context);
+}
+
+inline void text_input_set_cursor(TextInputState& state, int len, int cursor, bool selecting = false) {
+    state.cursor = text_input_clamp_cursor(cursor, len);
+    state.selection_anchor = selecting
+        ? text_input_clamp_cursor(state.selection_anchor, len)
+        : state.cursor;
+}
+
+inline bool text_input_has_selection(const TextInputState& state) {
+    return state.cursor != state.selection_anchor;
+}
+
+inline int text_input_selection_start(const TextInputState& state, int len) {
+    int cursor = text_input_clamp_cursor(state.cursor, len);
+    int anchor = text_input_clamp_cursor(state.selection_anchor, len);
+    return cursor < anchor ? cursor : anchor;
+}
+
+inline int text_input_selection_end(const TextInputState& state, int len) {
+    int cursor = text_input_clamp_cursor(state.cursor, len);
+    int anchor = text_input_clamp_cursor(state.selection_anchor, len);
+    return cursor > anchor ? cursor : anchor;
+}
+
+inline bool text_input_has_selection(const TextInputState& state, const char* text, int cap = 0) {
+    int len = text_input_len(text, cap);
+    return text_input_selection_start(state, len) != text_input_selection_end(state, len);
+}
+
+inline int text_input_prefix_width(const char* text, int count, bool masked) {
+    char prefix[512];
+    int len = 0;
+    while (text && text[len] && len < count && len < (int)sizeof(prefix) - 1) {
+        prefix[len] = masked ? '*' : text[len];
+        len++;
+    }
+    prefix[len] = '\0';
+    return text_width(prefix);
+}
+
+inline int text_input_index_from_x(const Rect& bounds, const char* value,
+                                   int mx, bool masked = false) {
+    int rel_x = mx - (bounds.x + 8);
+    if (rel_x <= 0) return 0;
+
+    int len = text_input_len(value);
+    int prev_w = 0;
+    for (int i = 0; i < len; i++) {
+        int cur_w = text_input_prefix_width(value, i + 1, masked);
+        int midpoint = prev_w + (cur_w - prev_w) / 2;
+        if (rel_x < midpoint) return i;
+        prev_w = cur_w;
+    }
+    return len;
+}
+
+inline int text_input_mouse(TextInputState& state,
+                            const Rect& bounds,
+                            const char* value,
+                            int mx, int my,
+                            uint8_t buttons,
+                            uint8_t prev_buttons,
+                            bool focused,
+                            bool masked = false) {
+    bool left_down = (buttons & 1) != 0;
+    bool left_pressed = (buttons & 1) && !(prev_buttons & 1);
+    bool left_released = !(buttons & 1) && (prev_buttons & 1);
+
+    if (left_pressed && bounds.contains(mx, my)) {
+        int cursor = text_input_index_from_x(bounds, value, mx, masked);
+        state.cursor = cursor;
+        state.selection_anchor = cursor;
+        state.dragging = true;
+        return TEXT_INPUT_CONSUMED;
+    }
+
+    if (focused && state.dragging && left_down) {
+        int cursor = text_input_index_from_x(bounds, value, mx, masked);
+        if (state.cursor != cursor) {
+            state.cursor = cursor;
+            return TEXT_INPUT_CONSUMED;
+        }
+        return TEXT_INPUT_CONSUMED;
+    }
+
+    if (state.dragging && left_released) {
+        state.dragging = false;
+        return TEXT_INPUT_CONSUMED;
+    }
+
+    return TEXT_INPUT_NONE;
+}
+
+inline bool text_input_word_char(char ch) {
+    return (ch >= 'a' && ch <= 'z') ||
+           (ch >= 'A' && ch <= 'Z') ||
+           (ch >= '0' && ch <= '9') ||
+           ch == '_';
+}
+
+inline int text_input_prev_word_boundary(const char* text, int cursor) {
+    int pos = cursor;
+    if (pos <= 0) return 0;
+    pos--;
+    while (pos > 0 && !text_input_word_char(text[pos])) pos--;
+    while (pos > 0 && text_input_word_char(text[pos - 1])) pos--;
+    return pos;
+}
+
+inline int text_input_next_word_boundary(const char* text, int cursor) {
+    int len = text_input_len(text);
+    int pos = text_input_clamp_cursor(cursor, len);
+    if (pos >= len) return len;
+    while (pos < len && text_input_word_char(text[pos])) pos++;
+    while (pos < len && !text_input_word_char(text[pos])) pos++;
+    return pos;
+}
+
+inline void text_input_delete_range(char* text, int* len, int start, int end) {
+    if (!text || !len || start >= end) return;
+    for (int i = start; i <= *len - (end - start); i++)
+        text[i] = text[i + (end - start)];
+    *len -= (end - start);
+}
+
+inline bool text_input_char_allowed(char ch, TextInputCharFilter filter = nullptr,
+                                    void* userdata = nullptr) {
+    unsigned char u = (unsigned char)ch;
+    if (u < 0x20 || u >= 0x7F) return false;
+    return filter == nullptr || filter(ch, userdata);
+}
+
+inline bool text_input_delete_selection(TextInputState& state, char* text, int cap) {
+    int len = text_input_len(text, cap);
+    int sel_start = text_input_selection_start(state, len);
+    int sel_end = text_input_selection_end(state, len);
+    if (sel_start == sel_end) return false;
+
+    text_input_delete_range(text, &len, sel_start, sel_end);
+    state.cursor = sel_start;
+    state.selection_anchor = sel_start;
+    return true;
+}
+
+inline bool text_input_copy_selection(const TextInputState& state, const char* text,
+                                      int cap, bool masked = false) {
+    if (masked) return false;
+    int len = text_input_len(text, cap);
+    int sel_start = text_input_selection_start(state, len);
+    int sel_end = text_input_selection_end(state, len);
+    if (sel_start == sel_end) return false;
+    return gui::clipboard_set_text(text + sel_start, sel_end - sel_start);
+}
+
+inline bool text_input_replace_selection_with_text(TextInputState& state,
+                                                   char* text,
+                                                   int cap,
+                                                   const char* insert,
+                                                   int insert_len,
+                                                   TextInputCharFilter filter = nullptr,
+                                                   void* userdata = nullptr) {
+    if (!text || !insert || cap <= 0 || insert_len < 0) return false;
+
+    for (int i = 0; i < insert_len; i++) {
+        if (!text_input_char_allowed(insert[i], filter, userdata))
+            return false;
+    }
+
+    int len = text_input_len(text, cap);
+    state.cursor = text_input_clamp_cursor(state.cursor, len);
+    state.selection_anchor = text_input_clamp_cursor(state.selection_anchor, len);
+
+    int sel_start = text_input_selection_start(state, len);
+    int sel_end = text_input_selection_end(state, len);
+    int replaced = sel_end - sel_start;
+    if (len - replaced + insert_len >= cap) return false;
+
+    if (replaced > 0)
+        text_input_delete_range(text, &len, sel_start, sel_end);
+
+    for (int i = len; i >= sel_start; i--)
+        text[i + insert_len] = text[i];
+    for (int i = 0; i < insert_len; i++)
+        text[sel_start + i] = insert[i];
+
+    state.cursor = sel_start + insert_len;
+    state.selection_anchor = state.cursor;
+    return replaced > 0 || insert_len > 0;
+}
+
+inline bool text_input_paste_clipboard(TextInputState& state,
+                                       char* text,
+                                       int cap,
+                                       TextInputCharFilter filter = nullptr,
+                                       void* userdata = nullptr) {
+    int paste_len = 0;
+    char* paste = gui::clipboard_get_text_alloc(&paste_len);
+    if (paste == nullptr || paste_len <= 0) {
+        if (paste) montauk::mfree(paste);
+        return false;
+    }
+
+    bool changed = text_input_replace_selection_with_text(state, text, cap,
+                                                         paste, paste_len,
+                                                         filter, userdata);
+    montauk::mfree(paste);
+    return changed;
+}
+
+inline bool text_input_cut_selection(TextInputState& state, char* text,
+                                     int cap, bool masked = false) {
+    if (!text_input_copy_selection(state, text, cap, masked))
+        return false;
+    return text_input_delete_selection(state, text, cap);
+}
+
+inline Rect text_input_context_menu_rect(const TextInputState& state, int view_w, int view_h) {
+    return context_menu_rect(state.context, TEXT_INPUT_CTX_COUNT, view_w, view_h);
+}
+
+inline void text_input_context_items(ContextMenuItem items[TEXT_INPUT_CTX_COUNT],
+                                     bool has_selection,
+                                     bool masked) {
+    bool paste_enabled = gui::clipboard_has_text();
+    items[TEXT_INPUT_CTX_CUT] = {"Cut", TEXT_INPUT_CTX_CUT,
+                                 has_selection && !masked};
+    items[TEXT_INPUT_CTX_COPY] = {"Copy", TEXT_INPUT_CTX_COPY,
+                                  has_selection && !masked};
+    items[TEXT_INPUT_CTX_PASTE] = {"Paste", TEXT_INPUT_CTX_PASTE,
+                                   paste_enabled};
+    items[TEXT_INPUT_CTX_DELETE] = {"Delete", TEXT_INPUT_CTX_DELETE,
+                                    has_selection};
+}
+
+inline int text_input_handle_mouse(TextInputState& state,
+                                   const Rect& bounds,
+                                   char* text,
+                                   int cap,
+                                   int mx,
+                                   int my,
+                                   uint8_t buttons,
+                                   uint8_t prev_buttons,
+                                   int view_w,
+                                   int view_h,
+                                   bool focused,
+                                   bool masked = false,
+                                   TextInputCharFilter filter = nullptr,
+                                   void* userdata = nullptr) {
+    bool right_pressed = (buttons & 2) && !(prev_buttons & 2);
+
+    if (state.context.open) {
+        bool has_selection = text_input_has_selection(state, text, cap);
+        ContextMenuItem items[TEXT_INPUT_CTX_COUNT];
+        text_input_context_items(items, has_selection, masked);
+
+        int action = context_menu_handle_mouse(state.context, items,
+                                               TEXT_INPUT_CTX_COUNT,
+                                               mx, my, buttons, prev_buttons,
+                                               view_w, view_h);
+        if (action == CONTEXT_MENU_NONE) return TEXT_INPUT_NONE;
+        int result = TEXT_INPUT_CONSUMED;
+        switch (action) {
+        case TEXT_INPUT_CTX_CUT:
+            if (text_input_cut_selection(state, text, cap, masked))
+                result |= TEXT_INPUT_CHANGED;
+            break;
+        case TEXT_INPUT_CTX_COPY:
+            text_input_copy_selection(state, text, cap, masked);
+            break;
+        case TEXT_INPUT_CTX_PASTE:
+            if (text_input_paste_clipboard(state, text, cap, filter, userdata))
+                result |= TEXT_INPUT_CHANGED;
+            break;
+        case TEXT_INPUT_CTX_DELETE:
+            if (text_input_delete_selection(state, text, cap))
+                result |= TEXT_INPUT_CHANGED;
+            break;
+        }
+        return result;
+    }
+
+    if (right_pressed && bounds.contains(mx, my)) {
+        int len = text_input_len(text, cap);
+        int cursor = text_input_index_from_x(bounds, text, mx, masked);
+        int sel_start = text_input_selection_start(state, len);
+        int sel_end = text_input_selection_end(state, len);
+        if (sel_start == sel_end || cursor < sel_start || cursor > sel_end)
+            text_input_set_cursor(state, len, cursor, false);
+        state.dragging = false;
+        context_menu_open(state.context, mx, my);
+        return TEXT_INPUT_CONSUMED;
+    }
+
+    return text_input_mouse(state, bounds, text, mx, my, buttons, prev_buttons,
+                            focused, masked);
+}
+
+inline int text_input_key(TextInputState& state,
+                          char* text,
+                          int cap,
+                          const Montauk::KeyEvent& key,
+                          TextInputCharFilter filter = nullptr,
+                          void* userdata = nullptr,
+                          bool masked = false) {
+    if (!key.pressed || !text || cap <= 0) return TEXT_INPUT_NONE;
+
+    int len = text_input_len(text, cap);
+    state.cursor = text_input_clamp_cursor(state.cursor, len);
+    state.selection_anchor = text_input_clamp_cursor(state.selection_anchor, len);
+
+    if (state.context.open) {
+        context_menu_close(state.context);
+        if (key.scancode == 0x01) return TEXT_INPUT_CONSUMED;
+    }
+
+    if (key.ctrl && (key.scancode == 0x1E || key.ascii == 'a' || key.ascii == 'A')) {
+        state.selection_anchor = 0;
+        state.cursor = len;
+        return TEXT_INPUT_CONSUMED;
+    }
+
+    int sel_start = text_input_selection_start(state, len);
+    int sel_end = text_input_selection_end(state, len);
+
+    if (key.ctrl && !key.alt && (key.ascii == 'c' || key.ascii == 'C')) {
+        text_input_copy_selection(state, text, cap, masked);
+        return TEXT_INPUT_CONSUMED;
+    }
+
+    if (key.ctrl && !key.alt && (key.ascii == 'x' || key.ascii == 'X')) {
+        bool changed = text_input_cut_selection(state, text, cap, masked);
+        return TEXT_INPUT_CONSUMED | (changed ? TEXT_INPUT_CHANGED : 0);
+    }
+
+    if (key.ctrl && !key.alt && (key.ascii == 'v' || key.ascii == 'V')) {
+        bool changed = text_input_paste_clipboard(state, text, cap, filter, userdata);
+        return TEXT_INPUT_CONSUMED | (changed ? TEXT_INPUT_CHANGED : 0);
+    }
+
+    if (key.scancode == 0x4B || key.scancode == 0x4D ||
+        key.scancode == 0x47 || key.scancode == 0x4F) {
+        int next = state.cursor;
+        if (!key.shift && sel_start != sel_end && key.scancode == 0x4B)
+            next = sel_start;
+        else if (!key.shift && sel_start != sel_end && key.scancode == 0x4D)
+            next = sel_end;
+        else if (key.scancode == 0x4B)
+            next = key.ctrl ? text_input_prev_word_boundary(text, state.cursor) : state.cursor - 1;
+        else if (key.scancode == 0x4D)
+            next = key.ctrl ? text_input_next_word_boundary(text, state.cursor) : state.cursor + 1;
+        else if (key.scancode == 0x47)
+            next = 0;
+        else if (key.scancode == 0x4F)
+            next = len;
+
+        text_input_set_cursor(state, len, next, key.shift);
+        return TEXT_INPUT_CONSUMED;
+    }
+
+    bool changed = false;
+
+    if (key.ascii == '\b' || key.scancode == 0x0E) {
+        if (sel_start != sel_end) {
+            text_input_delete_range(text, &len, sel_start, sel_end);
+            state.cursor = sel_start;
+            changed = true;
+        } else if (key.ctrl) {
+            int start = text_input_prev_word_boundary(text, state.cursor);
+            if (start != state.cursor) {
+                text_input_delete_range(text, &len, start, state.cursor);
+                state.cursor = start;
+                changed = true;
+            }
+        } else if (state.cursor > 0) {
+            text_input_delete_range(text, &len, state.cursor - 1, state.cursor);
+            state.cursor--;
+            changed = true;
+        }
+        state.selection_anchor = state.cursor;
+        return TEXT_INPUT_CONSUMED | (changed ? TEXT_INPUT_CHANGED : 0);
+    }
+
+    if (key.scancode == 0x53) {
+        if (sel_start != sel_end) {
+            text_input_delete_range(text, &len, sel_start, sel_end);
+            state.cursor = sel_start;
+            changed = true;
+        } else if (key.ctrl) {
+            int end = text_input_next_word_boundary(text, state.cursor);
+            if (end != state.cursor) {
+                text_input_delete_range(text, &len, state.cursor, end);
+                changed = true;
+            }
+        } else if (state.cursor < len) {
+            text_input_delete_range(text, &len, state.cursor, state.cursor + 1);
+            changed = true;
+        }
+        state.selection_anchor = state.cursor;
+        return TEXT_INPUT_CONSUMED | (changed ? TEXT_INPUT_CHANGED : 0);
+    }
+
+    if (key.ctrl || key.alt || !text_input_char_allowed(key.ascii, filter, userdata))
+        return TEXT_INPUT_NONE;
+
+    if (sel_start != sel_end) {
+        text_input_delete_range(text, &len, sel_start, sel_end);
+        state.cursor = sel_start;
+        changed = true;
+    }
+
+    if (len < cap - 1) {
+        for (int i = len; i >= state.cursor; i--)
+            text[i + 1] = text[i];
+        text[state.cursor++] = key.ascii;
+        len++;
+        changed = true;
+    }
+
+    state.selection_anchor = state.cursor;
+    return TEXT_INPUT_CONSUMED | (changed ? TEXT_INPUT_CHANGED : 0);
+}
+
 inline bool same_color(Color a, Color b) {
    return a.r == b.r && a.g == b.g && a.b == b.b && a.a == b.a;
 }
@@ -302,10 +934,12 @@ inline void draw_text_field(Canvas& c,
                            int cursor,
                            bool focused,
                            bool masked,
-                            const Theme& theme) {
+                            const Theme& theme,
+                            int selection_anchor = -1) {
    const char* text = value ? value : "";
    char masked_text[65];
    const char* shown = masked ? mask_text(text, masked_text, (int)sizeof(masked_text)) : text;
+    int len = text_len(text);

    draw_rounded_frame(c, bounds, theme.radius_sm, theme.surface,
                       focused ? theme.accent : theme.border);
@@ -313,17 +947,42 @@ inline void draw_text_field(Canvas& c,
    int fh = system_font_height();
    int tx = bounds.x + 8;
    int ty = bounds.y + (bounds.h - fh) / 2;
+
+    if (focused && selection_anchor >= 0) {
+        int cur = text_input_clamp_cursor(cursor, len);
+        int anchor = text_input_clamp_cursor(selection_anchor, len);
+        if (cur != anchor) {
+            int start = cur < anchor ? cur : anchor;
+            int end = cur > anchor ? cur : anchor;
+            int sx = tx + text_input_prefix_width(text, start, masked);
+            int ex = tx + text_input_prefix_width(text, end, masked);
+            int clip_x = gui_max(sx, bounds.x + 3);
+            int clip_r = gui_min(ex, bounds.x + bounds.w - 3);
+            if (clip_r > clip_x)
+                c.fill_rect(clip_x, bounds.y + 4, clip_r - clip_x,
+                            gui_max(bounds.h - 8, 1), theme.text_selection);
+        }
+    }
+
    c.text(tx, ty, shown, theme.text);

    if (focused) {
-        int clamped = gui_clamp(cursor, 0, text_len(text));
-        char prefix[65];
-        copy_prefix(prefix, (int)sizeof(prefix), text, clamped, masked);
-        int cx = tx + text_width(prefix);
+        int clamped = gui_clamp(cursor, 0, len);
+        int cx = tx + text_input_prefix_width(text, clamped, masked);
        c.fill_rect(cx, bounds.y + 6, 2, gui_max(bounds.h - 12, 1), theme.accent);
    }
 }

+inline void draw_text_input_context_menu(Canvas& c,
+                                         const TextInputState& state,
+                                         const Theme& theme,
+                                         bool has_selection = true,
+                                         bool masked = false) {
+    ContextMenuItem items[TEXT_INPUT_CTX_COUNT];
+    text_input_context_items(items, has_selection, masked);
+    draw_context_menu(c, state.context, items, TEXT_INPUT_CTX_COUNT, theme);
+}
+
 inline Rect labeled_text_input_rect(int x, int y, int w, const Theme& theme, int field_h = 0) {
    if (field_h <= 0) field_h = theme.control_h;
    return {x, y + system_font_height() + theme.gap_xs, w, field_h};
@@ -342,11 +1001,12 @@ inline void draw_labeled_text_field(Canvas& c,
                                    bool focused,
                                    bool masked,
                                    const Theme& theme,
-                                    int field_h = 0) {
+                                    int field_h = 0,
+                                    int selection_anchor = -1) {
    if (field_h <= 0) field_h = theme.control_h;
    c.text(x, y, label, theme.text_muted);
    draw_text_field(c, labeled_text_input_rect(x, y, w, theme, field_h),
-                    value, cursor, focused, masked, theme);
+                    value, cursor, focused, masked, theme, selection_anchor);
 }

 inline void draw_modal_actions(Canvas& c,