Use a struct for IME update events

Allows for easier extension in the future

glfw/cocoa_window.m

@@ -1295,8 +1295,8 @@ is_ascii_control_char(char x) {
     [[markedText mutableString] setString:@""];
 }
 
-void _glfwPlatformUpdateIMEState(_GLFWwindow *w, GLFWIMEUpdateState which, int a, int b, int c, int d) {
-    [w->ns.view updateIMEStateFor: which left:(CGFloat)a top:(CGFloat)b cellWidth:(CGFloat)c cellHeight:(CGFloat)d];
+void _glfwPlatformUpdateIMEState(_GLFWwindow *w, const GLFWIMEUpdateEvent *ev) {
+    [w->ns.view updateIMEStateFor: which left:(CGFloat)ev->cursor.left top:(CGFloat)ev->cursor.top cellWidth:(CGFloat)ev->cursor.width cellHeight:(CGFloat)ev->cursor.height];
 }
 
 - (void)updateIMEStateFor:(GLFWIMEUpdateState)which

glfw/glfw3.h

@@ -1195,7 +1195,17 @@ typedef enum {
 typedef enum {
     GLFW_IME_UPDATE_FOCUS = 1,
     GLFW_IME_UPDATE_CURSOR_POSITION = 2
-} GLFWIMEUpdateState;
+} GLFWIMEUpdateType;
+
+typedef struct GLFWIMEUpdateEvent {
+    GLFWIMEUpdateType type;
+    const char *before_text, *at_text, *after_text;
+    bool focused;
+    struct {
+        int left, top, width, height;
+    } cursor;
+} GLFWIMEUpdateEvent;
+
 
 typedef struct GLFWkeyevent
 {
@@ -4545,16 +4555,12 @@ GLFWAPI GLFWkeyboardfun glfwSetKeyboardCallback(GLFWwindow* window, GLFWkeyboard
  * Used to notify the IME system of changes in state such as focus gained/lost
  * and text cursor position.
  *
- * @param which: What data to notify.
- * @param a, b, c, d: Interpreted based on the value of which. When which is GLFW_IME_UPDATE_FOCUS
- * a is interpreted as a boolean indicating focus gained/lost. When which is GLFW_IME_UPDATE_CURSOR_POSITION
- * a, b, c, d are the cursor x, y, width and height values (in the window co-ordinate
- * system).
+ * @param ev: What data to notify.
  *
  *  @ingroup input
  *  @since Added in version 4.0
  */
-GLFWAPI void glfwUpdateIMEState(GLFWwindow* window, GLFWIMEUpdateState which, int a, int b, int c, int d);
+GLFWAPI void glfwUpdateIMEState(GLFWwindow* window, const GLFWIMEUpdateEvent *ev);
 
 
 /*! @brief Sets the mouse button callback.

glfw/input.c

@@ -1010,13 +1010,13 @@ GLFWAPI GLFWkeyboardfun glfwSetKeyboardCallback(GLFWwindow* handle, GLFWkeyboard
     return cbfun;
 }
 
-GLFWAPI void glfwUpdateIMEState(GLFWwindow* handle, GLFWIMEUpdateState which, int a, int b, int c, int d) {
+GLFWAPI void glfwUpdateIMEState(GLFWwindow* handle, const GLFWIMEUpdateEvent *ev) {
     _GLFWwindow* window = (_GLFWwindow*) handle;
     assert(window != NULL);
 
     _GLFW_REQUIRE_INIT();
 #if defined(_GLFW_X11) || defined(_GLFW_WAYLAND) || defined(_GLFW_COCOA)
-    _glfwPlatformUpdateIMEState(window, which, a, b, c, d);
+    _glfwPlatformUpdateIMEState(window, ev);
 #else
     (void)window; (void)which; (void)a; (void)b; (void)c; (void)d;
 #endif

glfw/internal.h

@@ -728,7 +728,7 @@ void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, bool enabled);
 void _glfwPlatformSetWindowFloating(_GLFWwindow* window, bool enabled);
 void _glfwPlatformSetWindowMousePassthrough(_GLFWwindow* window, bool enabled);
 void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity);
-void _glfwPlatformUpdateIMEState(_GLFWwindow *w, GLFWIMEUpdateState which, int a, int b, int c, int d);
+void _glfwPlatformUpdateIMEState(_GLFWwindow *w, const GLFWIMEUpdateEvent *ev);
 
 void _glfwPlatformPollEvents(void);
 void _glfwPlatformWaitEvents(void);

glfw/wl_window.c

@@ -2105,8 +2105,8 @@ VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
 }
 
 void
-_glfwPlatformUpdateIMEState(_GLFWwindow *w, GLFWIMEUpdateState which, int a, int b, int c, int d) {
-    glfw_xkb_update_ime_state(w, &_glfw.wl.xkb, which, a, b, c, d);
+_glfwPlatformUpdateIMEState(_GLFWwindow *w, const GLFWIMEUpdateEvent *ev) {
+    glfw_xkb_update_ime_state(w, &_glfw.wl.xkb, ev);
 }
 
 static void

glfw/x11_window.c

@@ -3085,8 +3085,8 @@ VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
 }
 
 void
-_glfwPlatformUpdateIMEState(_GLFWwindow *w, GLFWIMEUpdateState which, int a, int b, int c, int d) {
-    glfw_xkb_update_ime_state(w, &_glfw.x11.xkb, which, a, b, c, d);
+_glfwPlatformUpdateIMEState(_GLFWwindow *w, const GLFWIMEUpdateEvent *ev) {
+    glfw_xkb_update_ime_state(w, &_glfw.x11.xkb, ev);
 }
 
 //////////////////////////////////////////////////////////////////////////

glfw/xkb_glfw.c

@@ -555,16 +555,16 @@ format_xkb_mods(_GLFWXKBData *xkb, const char* name, xkb_mod_mask_t mods) {
 }
 
 void
-glfw_xkb_update_ime_state(_GLFWwindow *w, _GLFWXKBData *xkb, GLFWIMEUpdateState which, int a, int b, int c, int d) {
+glfw_xkb_update_ime_state(_GLFWwindow *w, _GLFWXKBData *xkb, const GLFWIMEUpdateEvent *ev) {
     int x = 0, y = 0;
-    switch(which) {
+    switch(ev->type) {
         case GLFW_IME_UPDATE_FOCUS:
-            glfw_ibus_set_focused(&xkb->ibus, a ? true : false);
+            glfw_ibus_set_focused(&xkb->ibus, ev->focused);
             break;
         case GLFW_IME_UPDATE_CURSOR_POSITION:
             _glfwPlatformGetWindowPos(w, &x, &y);
-            x += a; y += b;
-            glfw_ibus_set_cursor_geometry(&xkb->ibus, x, y, c, d);
+            x += ev->cursor.left; y += ev->cursor.top;
+            glfw_ibus_set_cursor_geometry(&xkb->ibus, x, y, ev->cursor.width, ev->cursor.height);
             break;
     }
 }

glfw/xkb_glfw.h

@@ -92,5 +92,5 @@ const char* glfw_xkb_keysym_name(xkb_keysym_t sym);
 xkb_keysym_t glfw_xkb_sym_for_key(uint32_t key);
 void glfw_xkb_handle_key_event(_GLFWwindow *window, _GLFWXKBData *xkb, xkb_keycode_t keycode, int action);
 int glfw_xkb_keysym_from_name(const char *name, bool case_sensitive);
-void glfw_xkb_update_ime_state(_GLFWwindow *w, _GLFWXKBData *xkb, GLFWIMEUpdateState which, int a, int b, int c, int d);
+void glfw_xkb_update_ime_state(_GLFWwindow *w, _GLFWXKBData *xkb, const GLFWIMEUpdateEvent *ev);
 void glfw_xkb_key_from_ime(_GLFWIBUSKeyEvent *ev, bool handled_by_ime, bool failed);