Overhaul Unicode Common functionality (#4325)

* Standardize the Unicode EEPROM code

* Remove unicode init from process_record_* functions

* Add unicode init to where it belongs: matrix_init_quantum

* Move Unicode proccessing to unicode common

* Add audio feedback to input mode keys to drive konstantin up a wall

* Tap_code cleanup

* Update keycodes

* Update unicode documentation

* Update unicode keycodes for consistency/easier merge

* Add Audio Feedback section

* Remove Functions from feature page

And link to the file instead.  Link to specific lines later on.

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* Because I missed it!

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* SPAAAAAAAAAACing

Co-Authored-By: drashna <drashna@live.com>

* Add BSD for future compatibility

* Thought I fixed that!

Co-Authored-By: drashna <drashna@live.com>

* non-breaking

Co-Authored-By: drashna <drashna@live.com>

* Considered that

Co-Authored-By: drashna <drashna@live.com>

* Yuuup

Co-Authored-By: drashna <drashna@live.com>

* consistency

Co-Authored-By: drashna <drashna@live.com>

* white spaces .... copied from elsewhere

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Update keycode defines

* Fix Linux Song

* Update all of the songs

* Cleanup

* Move and update check to ensure only one unicode method is enabled

* Update quantum/quantum_keycodes.h

* Update documentation

* Wordsmithing and cleanup

* Format unicode_common (#13)

* case alignment

* process_record_unicode_common → process_unicode_common

* Move song arrays into function where they're used, align preprocessor directives

* Swap the order of UC_WIN and UC_BSD

* Update Unicode docs

* Reorder Unicode mode stuff to match the order of input mode constants

* Fix capitalization in doc subtitle

* Readd BSD and OSX_RALT songs

* Reword BSD note in docs

* Readd BSD keycode description

* Reword explanation of input on different platforms

* Steal vomindoraan's input mode documentation

Co-Authored-By: vomindoraan (vomindoraan@gmail.com)

* Willingly give Drashna the rest of my Unicode doc improvements

* Wordsmithing

Co-Authored-By: drashna <drashna@live.com>

* remove merge artifacts

* Unicode common cleanup (#17)

* Standardize the Unicode EEPROM code

* Remove unicode init from process_record_* functions

* Add unicode init to where it belongs: matrix_init_quantum

* Move Unicode proccessing to unicode common

* Add audio feedback to input mode keys to drive konstantin up a wall

* Tap_code cleanup

* Update keycodes

* Update unicode documentation

* Update unicode keycodes for consistency/easier merge

* Add Audio Feedback section

* Remove Functions from feature page

And link to the file instead.  Link to specific lines later on.

* Fix white spaces

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* Because I missed it!

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* SPAAAAAAAAAACing

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Add BSD for future compatibility

* Thought I fixed that!

Co-Authored-By: drashna <drashna@live.com>

* non-breaking

Co-Authored-By: drashna <drashna@live.com>

* Considered that

Co-Authored-By: drashna <drashna@live.com>

* Yuuup

Co-Authored-By: drashna <drashna@live.com>

* consistency

Co-Authored-By: drashna <drashna@live.com>

* white spaces .... copied from elsewhere

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Update keycode defines

* Fix Linux Song

* Update all of the songs

* Cleanup

* Move and update check to ensure only one unicode method is enabled

* Update quantum/quantum_keycodes.h

* Update documentation

* Wordsmithing and cleanup

* Format unicode_common (#13)

* case alignment

* process_record_unicode_common → process_unicode_common

* Move song arrays into function where they're used, align preprocessor directives

* Swap the order of UC_WIN and UC_BSD

* Update Unicode docs

* Reorder Unicode mode stuff to match the order of input mode constants

* Fix capitalization in doc subtitle

* Readd BSD and OSX_RALT songs

* Reword BSD note in docs

* Readd BSD keycode description

* Reword explanation of input on different platforms

* Steal vomindoraan's input mode documentation

Co-Authored-By: vomindoraan (vomindoraan@gmail.com)

* Willingly give Drashna the rest of my Unicode doc improvements

* Wordsmithing

Co-Authored-By: drashna <drashna@live.com>

* Rearrange process_unicode_common functions

* Make Unicode input mode constants (UC_*) an enum

* Simplify unicode_input_start/finish code

* Make the key used for WinCompose configurable

* Remove UC_OSX_RALT in favor of setting the key with UNICODE_OSX_KEY

* Update Unicode input mode doc

* Add descriptions and rearrange definitions in process_unicode_common.h

* Add registry command to Unicode docs + misc updates

* Reword an explanation in Unicode docs

* Add TODO comment

* Remove trailing whitespace

* Improve Cycling documentation

* Add Unicode Input method Cycling support (#19)

* Standardize the Unicode EEPROM code

* Remove unicode init from process_record_* functions

* Add unicode init to where it belongs: matrix_init_quantum

* Move Unicode proccessing to unicode common

* Add audio feedback to input mode keys to drive konstantin up a wall

* Tap_code cleanup

* Update keycodes

* Update unicode documentation

* Update unicode keycodes for consistency/easier merge

* Add Audio Feedback section

* Remove Functions from feature page

And link to the file instead.  Link to specific lines later on.

* Fix white spaces

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* Because I missed it!

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* SPAAAAAAAAAACing

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Add BSD for future compatibility

* Thought I fixed that!

Co-Authored-By: drashna <drashna@live.com>

* non-breaking

Co-Authored-By: drashna <drashna@live.com>

* Considered that

Co-Authored-By: drashna <drashna@live.com>

* Yuuup

Co-Authored-By: drashna <drashna@live.com>

* consistency

Co-Authored-By: drashna <drashna@live.com>

* white spaces .... copied from elsewhere

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Update keycode defines

* Fix Linux Song

* Update all of the songs

* Cleanup

* Move and update check to ensure only one unicode method is enabled

* Update quantum/quantum_keycodes.h

* Update documentation

* Wordsmithing and cleanup

* Format unicode_common (#13)

* case alignment

* process_record_unicode_common → process_unicode_common

* Move song arrays into function where they're used, align preprocessor directives

* Swap the order of UC_WIN and UC_BSD

* Update Unicode docs

* Reorder Unicode mode stuff to match the order of input mode constants

* Fix capitalization in doc subtitle

* Readd BSD and OSX_RALT songs

* Reword BSD note in docs

* Readd BSD keycode description

* Reword explanation of input on different platforms

* Steal vomindoraan's input mode documentation

Co-Authored-By: vomindoraan (vomindoraan@gmail.com)

* Willingly give Drashna the rest of my Unicode doc improvements

* Wordsmithing

Co-Authored-By: drashna <drashna@live.com>

* Rearrange process_unicode_common functions

* Make Unicode input mode constants (UC_*) an enum

* Simplify unicode_input_start/finish code

* Make the key used for WinCompose configurable

* Remove UC_OSX_RALT in favor of setting the key with UNICODE_OSX_KEY

* Update Unicode input mode doc

* Add descriptions and rearrange definitions in process_unicode_common.h

* Add registry command to Unicode docs + misc updates

* Reword an explanation in Unicode docs

* Add TODO comment

* Add cycle_unicode_input_mode and UNICODE_SELECTED_MODES macro

* Add an option for making cycle changes persistent

* Add debug prints to functions that change input_mode

* Use cycle_unicode_input_mode in whitefox/konstantin

* Add persist_unicode_input_mode function

* Add offset to cycle to allow stepping in reverse

* Add keycodes: UNICODE_MODE_FORWARD, UNICODE_MODE_REVERSE

Aliases: UC_MOD, UC_RMOD (respectively)

* REVERT ME: Undo changes to whitefox/konstantin to avoid conflicts

* Fix wrong constant name

* Revert "REVERT ME: Undo changes to whitefox/konstantin to avoid conflicts"

This reverts commit 42676bf251fc8e3823f5e614dad6e510ba47a2f3.

* Change dprintf text

* Give selected modes priority over EEPROM when !UNICODE_CYCLE_PERSIST

* Remove trailing whitespace

* Cleanup of RALT code and unicode compilation stuff

* Remove else for unicode handling

1 files changed, 50 insertions, 16 deletions

diff --git a/quantum/process_keycode/process_unicode_common.h b/quantum/process_keycode/process_unicode_common.h
index e78e1cec6..e608ab76b 100644
--- a/quantum/process_keycode/process_unicode_common.h
+++ b/quantum/process_keycode/process_unicode_common.h
@@ -14,35 +14,71 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef PROCESS_UNICODE_COMMON_H
-#define PROCESS_UNICODE_COMMON_H
+#pragma once
 
 #include "quantum.h"
 
+#if defined(UNICODE_ENABLE) + defined(UNICODEMAP_ENABLE) + defined(UCIS_ENABLE) > 1
+  #error "Cannot enable more than one Unicode method (UNICODE, UNICODEMAP, UCIS) at the same time"
+#endif
+
+// Keycodes used for starting Unicode input on different platforms
+#ifndef UNICODE_OSX_KEY
+  #define UNICODE_OSX_KEY  KC_LALT
+#endif
+#ifndef UNICODE_WINC_KEY
+  #define UNICODE_WINC_KEY KC_RALT
+#endif
+
+// Comma-delimited, ordered list of input modes selected for use (e.g. in cycle)
+// Example: #define UNICODE_SELECTED_MODES UC_WINC, UC_LNX
+#ifndef UNICODE_SELECTED_MODES
+  #define UNICODE_SELECTED_MODES -1
+#endif
+
+// Whether input mode changes in cycle should be written to EEPROM
+#ifndef UNICODE_CYCLE_PERSIST
+  #define UNICODE_CYCLE_PERSIST true
+#endif
+
+// Delay between starting Unicode input and sending a sequence, in ms
 #ifndef UNICODE_TYPE_DELAY
-#define UNICODE_TYPE_DELAY 10
+  #define UNICODE_TYPE_DELAY 10
 #endif
 
-__attribute__ ((unused))
-static uint8_t input_mode;
+enum unicode_input_modes {
+  UC_OSX,   // Mac OS X using Unicode Hex Input
+  UC_LNX,   // Linux using IBus
+  UC_WIN,   // Windows using EnableHexNumpad
+  UC_BSD,   // BSD (not implemented)
+  UC_WINC,  // Windows using WinCompose (https://github.com/samhocevar/wincompose)
+  UC__COUNT // Number of available input modes (always leave at the end)
+};
+
+typedef union {
+  uint32_t raw;
+  struct {
+    uint8_t input_mode : 8;
+  };
+} unicode_config_t;
+
+extern unicode_config_t unicode_config;
 
-void set_unicode_input_mode(uint8_t os_target);
-uint8_t get_unicode_input_mode(void);
 void unicode_input_mode_init(void);
+uint8_t get_unicode_input_mode(void);
+void set_unicode_input_mode(uint8_t mode);
+void cycle_unicode_input_mode(uint8_t offset);
+void persist_unicode_input_mode(void);
+
 void unicode_input_start(void);
 void unicode_input_finish(void);
+
 void register_hex(uint16_t hex);
 void send_unicode_hex_string(const char *str);
 
-#define UC_OSX 0  // Mac OS X
-#define UC_LNX 1  // Linux
-#define UC_WIN 2  // Windows 'HexNumpad'
-#define UC_BSD 3  // BSD (not implemented)
-#define UC_WINC 4 // WinCompose https://github.com/samhocevar/wincompose
-#define UC_OSX_RALT 5 // Mac OS X using Right Alt key for Unicode Compose
+bool process_unicode_common(uint16_t keycode, keyrecord_t *record);
 
 #define UC_BSPC	UC(0x0008)
-
 #define UC_SPC	UC(0x0020)
 
 #define UC_EXLM	UC(0x0021)
@@ -147,5 +183,3 @@ void send_unicode_hex_string(const char *str);
 #define UC_RCBR	UC(0x007D)
 #define UC_TILD	UC(0x007E)
 #define UC_DEL	UC(0x007F)
-
-#endif