Merge pull request #9381 from godotengine/revert-9350-x11-ime

Revert "Workaround for IME on Linux."

3 files changed, 10 insertions, 129 deletions

diff --git a/platform/x11/godot_x11.cpp b/platform/x11/godot_x11.cpp
index 6f418b213f..b293b1bebb 100644
--- a/platform/x11/godot_x11.cpp
+++ b/platform/x11/godot_x11.cpp
@@ -28,7 +28,6 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 #include <limits.h>
-#include <locale.h>
 #include <stdlib.h>
 #include <unistd.h>
 
@@ -39,8 +38,6 @@ int main(int argc, char *argv[]) {
 
 	OS_X11 os;
 
-	setlocale(LC_CTYPE, "");
-
 	char *cwd = (char *)malloc(PATH_MAX);
 	getcwd(cwd, PATH_MAX);
 
diff --git a/platform/x11/os_x11.cpp b/platform/x11/os_x11.cpp
index aa20030606..2eebc96d2c 100644
--- a/platform/x11/os_x11.cpp
+++ b/platform/x11/os_x11.cpp
@@ -93,7 +93,6 @@ const char *OS_X11::get_audio_driver_name(int p_driver) const {
 
 void OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_audio_driver) {
 
-	long im_event_mask = 0;
 	last_button_state = 0;
 
 	xmbstring = NULL;
@@ -114,10 +113,7 @@ void OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_au
 	/** XLIB INITIALIZATION **/
 	x11_display = XOpenDisplay(NULL);
 
-	char *modifiers = XSetLocaleModifiers("");
-	if (modifiers == NULL) {
-		modifiers = XSetLocaleModifiers("@im=none");
-	}
+	char *modifiers = XSetLocaleModifiers("@im=none");
 	if (modifiers == NULL) {
 		WARN_PRINT("Error setting locale modifiers");
 	}
@@ -157,14 +153,6 @@ void OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_au
 		WARN_PRINT("XOpenIM failed");
 		xim_style = 0L;
 	} else {
-		::XIMCallback im_destroy_callback;
-		im_destroy_callback.client_data = (::XPointer)(this);
-		im_destroy_callback.callback = (::XIMProc)(xim_destroy_callback);
-		if (XSetIMValues(xim, XNDestroyCallback, &im_destroy_callback,
-					NULL) != NULL) {
-			WARN_PRINT("Error setting XIM destroy callback");
-		}
-
 		::XIMStyles *xim_styles = NULL;
 		xim_style = 0L;
 		char *imvalret = NULL;
@@ -315,8 +303,7 @@ void OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_au
 						  StructureNotifyMask |
 						  SubstructureNotifyMask | SubstructureRedirectMask |
 						  FocusChangeMask | PropertyChangeMask |
-						  ColormapChangeMask | OwnerGrabButtonMask |
-						  im_event_mask;
+						  ColormapChangeMask | OwnerGrabButtonMask;
 
 	XChangeWindowAttributes(x11_display, x11_window, CWEventMask, &new_attr);
 
@@ -340,16 +327,6 @@ void OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_au
 	if (xim && xim_style) {
 
 		xic = XCreateIC(xim, XNInputStyle, xim_style, XNClientWindow, x11_window, XNFocusWindow, x11_window, (char *)NULL);
-		if (XGetICValues(xic, XNFilterEvents, &im_event_mask, NULL) != NULL) {
-			WARN_PRINT("XGetICValues couldn't obtain XNFilterEvents value");
-			XDestroyIC(xic);
-			xic = NULL;
-		}
-		if (xic) {
-			XSetICFocus(xic);
-		} else {
-			WARN_PRINT("XCreateIC couldn't create xic");
-		}
 	} else {
 
 		xic = NULL;
@@ -468,30 +445,6 @@ void OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_au
 	_ensure_data_dir();
 }
 
-void OS_X11::xim_destroy_callback(::XIM im, ::XPointer client_data,
-		::XPointer call_data) {
-	WARN_PRINT("Input method stopped");
-	OS_X11 *os = reinterpret_cast<OS_X11 *>(client_data);
-	os->xim = NULL;
-	os->xic = NULL;
-}
-
-void OS_X11::set_ime_position(short x, short y) {
-	if (xic) {
-		::XPoint spot;
-		spot.x = x;
-		spot.y = y;
-		XVaNestedList preedit_attr = XVaCreateNestedList(0,
-				XNSpotLocation, &spot,
-				NULL);
-		XSetICValues(xic,
-				XNPreeditAttributes, preedit_attr,
-				NULL);
-		XFree(preedit_attr);
-	}
-	return;
-}
-
 void OS_X11::finalize() {
 
 	if (main_loop)
@@ -539,12 +492,8 @@ void OS_X11::finalize() {
 			XcursorImageDestroy(img[i]);
 	};
 
-	if (xic) {
-		XDestroyIC(xic);
-	}
-	if (xim) {
-		XCloseIM(xim);
-	}
+	XDestroyIC(xic);
+	XCloseIM(xim);
 
 	XCloseDisplay(x11_display);
 	if (xmbstring)
@@ -1092,61 +1041,11 @@ void OS_X11::handle_key_event(XKeyEvent *p_event, bool p_echo) {
 		xmblen = 8;
 	}
 
-	keysym_unicode = keysym_keycode;
-
 	if (xkeyevent->type == KeyPress && xic) {
 
 		Status status;
-#ifdef X_HAVE_UTF8_STRING
-		int utf8len = 8;
-		char *utf8string = (char *)memalloc(sizeof(char) * utf8len);
-		int utf8bytes = Xutf8LookupString(xic, xkeyevent, utf8string,
-				utf8len - 1, &keysym_unicode, &status);
-		if (status == XBufferOverflow) {
-			utf8len = utf8bytes + 1;
-			utf8string = (char *)memrealloc(utf8string, utf8len);
-			utf8bytes = Xutf8LookupString(xic, xkeyevent, utf8string,
-					utf8len - 1, &keysym_unicode, &status);
-		}
-		utf8string[utf8bytes] = '\0';
-
-		if (status == XLookupChars) {
-			bool keypress = xkeyevent->type == KeyPress;
-			unsigned int keycode = KeyMappingX11::get_keycode(keysym_keycode);
-			String tmp;
-			tmp.parse_utf8(utf8string, utf8bytes);
-			for (int i = 0; i < tmp.length(); i++) {
-				Ref<InputEventKey> k;
-				k.instance();
-				if (keycode == 0 && tmp[i] == 0) {
-					continue;
-				}
-
-				get_key_modifier_state(xkeyevent->state, k);
-
-				k->set_unicode(tmp[i]);
-
-				k->set_pressed(keypress);
-
-				if (keycode >= 'a' && keycode <= 'z')
-					keycode -= 'a' - 'A';
-				k->set_scancode(keycode);
-
-				k->set_echo(p_echo);
-
-				if (k->get_scancode() == KEY_BACKTAB) {
-					//make it consistent across platforms.
-					k->set_scancode(KEY_TAB);
-					k->set_shift(true);
-				}
-
-				input->parse_input_event(k);
-			}
-			return;
-		}
-		memfree(utf8string);
-#else
 		do {
+
 			int mnbytes = XmbLookupString(xic, xkeyevent, xmbstring, xmblen - 1, &keysym_unicode, &status);
 			xmbstring[mnbytes] = '\0';
 
@@ -1155,7 +1054,6 @@ void OS_X11::handle_key_event(XKeyEvent *p_event, bool p_echo) {
 				xmbstring = (char *)memrealloc(xmbstring, xmblen);
 			}
 		} while (status == XBufferOverflow);
-#endif
 	}
 
 	/* Phase 2, obtain a pigui keycode from the keysym */
@@ -1184,6 +1082,11 @@ void OS_X11::handle_key_event(XKeyEvent *p_event, bool p_echo) {
 
 	bool keypress = xkeyevent->type == KeyPress;
 
+	if (xkeyevent->type == KeyPress && xic) {
+		if (XFilterEvent((XEvent *)xkeyevent, x11_window))
+			return;
+	}
+
 	if (keycode == 0 && unicode == 0)
 		return;
 
@@ -1350,10 +1253,6 @@ void OS_X11::process_xevents() {
 		XEvent event;
 		XNextEvent(x11_display, &event);
 
-		if (XFilterEvent(&event, None)) {
-			continue;
-		}
-
 		switch (event.type) {
 			case Expose:
 				Main::force_redraw();
@@ -1396,9 +1295,6 @@ void OS_X11::process_xevents() {
 							ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
 							GrabModeAsync, GrabModeAsync, x11_window, None, CurrentTime);
 				}
-				if (xic) {
-					XSetICFocus(xic);
-				}
 				break;
 
 			case FocusOut:
@@ -1412,17 +1308,9 @@ void OS_X11::process_xevents() {
 					}
 					XUngrabPointer(x11_display, CurrentTime);
 				}
-				if (xic) {
-					XUnsetICFocus(xic);
-				}
 				break;
 
 			case ConfigureNotify:
-				if (xic) {
-					//  Not portable.
-					set_ime_position(0, 1);
-				}
-
 				/* call resizeGLScene only if our window-size changed */
 
 				if ((event.xconfigure.width == current_videomode.width) &&
diff --git a/platform/x11/os_x11.h b/platform/x11/os_x11.h
index b253934a05..d62186e5bd 100644
--- a/platform/x11/os_x11.h
+++ b/platform/x11/os_x11.h
@@ -113,10 +113,6 @@ class OS_X11 : public OS_Unix {
 	::XIC xic;
 	::XIM xim;
 	::XIMStyle xim_style;
-	static void xim_destroy_callback(::XIM im, ::XPointer client_data,
-			::XPointer call_data);
-	void set_ime_position(short x, short y);
-
 	Point2i last_mouse_pos;
 	bool last_mouse_pos_valid;
 	Point2i last_click_pos;