Merge pull request #1234 from keyboardio/f/spacecadet-config

SpaceCadet: Implement a SpaceCadetConfig plugin

plugins/Kaleidoscope-SpaceCadet/README.md

@@ -81,7 +81,11 @@ void setup() {
 
 ##   Plugin methods
 
-The plugin provides the `SpaceCadet` object, with the following methods:
+The plugin provides two objects, `SpaceCadet` and `SpaceCadetConfig`. The latter
+requires the first, and allows configuring some aspects of `SpaceCadet` through
+[Focus][focus].
+
+The `SpaceCadet` object provides the following methods:
 
 ### `.setMap(map)`
 
@@ -110,7 +114,14 @@ The plugin provides the `SpaceCadet` object, with the following methods:
 > timeout setting can be overridden by an individual key in the keymap, but if
 > it is omitted or set to `0` in the key map, the global timeout will be used.
 >
-> Defaults to 1000.
+> Defaults to 200.
+
+### `.getTimeout()`
+
+> Returns the number of milliseconds SpaceCadet will wait before considering a
+> key held in isolation as its secondary role. This returns the *global*
+> setting, as set by `.setTimeout()`. If any key in the mapping set by
+> `.setMap()` has a different timeout, that is not considered here.
 
 ### `.enable()`
 
@@ -120,6 +131,13 @@ The plugin provides the `SpaceCadet` object, with the following methods:
 >
 > The default behavior is `enabled`.
 
+### `.enableWithoutDelay()`
+
+> This method enables the SpaceCadet plugin in "no-delay" mode. In this mode,
+> SpaceCadet immediately sends the primary (modifier) value of the SpaceCadet
+> key when it is pressed. If it is then released before timing out, it sends the
+> alternate "tap" value, replacing the modifier.
+
 ### `.disable()`
 
 > This method disables the SpaceCadet behavior. This is useful for interfacing
@@ -132,12 +150,11 @@ The plugin provides the `SpaceCadet` object, with the following methods:
 > is disabled. This is useful for interfacing with other plugins or macros,
 > especially where SpaceCadet functionality isn't always desired.
 
-### `.enableWithoutDelay()`
 
-> This method enables the SpaceCadet plugin in "no-delay" mode. In this mode,
+### `.activeWithoutDelay()`
-> SpaceCadet immediately sends the primary (modifier) value of the SpaceCadet
+
-> key when it is pressed. If it is then released before timing out, it sends the
+> This method returns `true` if SpaceCadet is enabled, and is in "no-delay"
-> alternate "tap" value, replacing the modifier.
+> mode, as set by `.enableWithoutDelay()`.
 
 ### `Key_SpaceCadetEnable`
 
@@ -151,10 +168,38 @@ The plugin provides the `SpaceCadet` object, with the following methods:
 > behavior. This is only triggered on initial press, and does not
 > trigger again if held down or when the key is released.
 
+## Focus commands
+
+When using the `SpaceCadetConfig` plugin, the following Focus commands become
+available:
+
+### `spacecadet.mode`
+
+> Without arguments, returns the mode SpaceCadet is currently in, as a number.
+> When `SpaceCadet` is enabled in normal mode, this returns 0. When it is turned
+> off, it returns 1. When it is active in no-delay mode, it returns 2.
+>
+> When an argument is supplied, it must be one of the above, and will set the
+> SpaceCadet mode appropriately. Giving a numeric argument other than the
+> allowed ones will disable SpaceCadet.
+
+### `spacecadet.timeout`
+
+> Without arguments, prints the global timeout used by SpaceCadet.
+>
+> When an argument is given, it sets the global timeout.
+
 ## Dependencies
 
 * [Kaleidoscope-Ranges](Kaleidoscope-Ranges.md)
 
+### Optional dependencies, if using the `SpaceCadetConfig` object
+
+* [Kaleidoscope-EEPROM-Settings](Kaleidoscope-EEPROM-Settings.md)
+* [Kaleidoscope-FocusSerial][focus]
+
+ [focus]: Kaleidoscope-FocusSerial.md
+
 ## Further reading
 
 Starting from the [example][plugin:example] is the recommended way of getting

plugins/Kaleidoscope-SpaceCadet/src/kaleidoscope/plugin/SpaceCadet.cpp

@@ -42,17 +42,6 @@ SpaceCadet::KeyBinding::KeyBinding(Key input, Key output)
 SpaceCadet::KeyBinding::KeyBinding(Key input, Key output, uint16_t timeout)
   : input(input), output(output), timeout(timeout) {}
 
-// =============================================================================
-// Space Cadet class variables
-
-// -----------------------------------------------------------------------------
-// Plugin configuration variables
-
-#ifndef NDEPRECATED
-SpaceCadet::KeyBinding *SpaceCadet::map;
-uint16_t SpaceCadet::time_out = 200;
-#endif
-
 // =============================================================================
 // SpaceCadet functions
 
@@ -113,7 +102,7 @@ EventHandlerResult SpaceCadet::onKeyswitchEvent(KeyEvent &event) {
   }
 
   // Do nothing if disabled, but keep the event tracker current.
-  if (mode_ == Mode::OFF)
+  if (settings_.mode == Mode::OFF)
     return EventHandlerResult::OK;
 
   if (!event_queue_.isEmpty()) {
@@ -144,7 +133,7 @@ EventHandlerResult SpaceCadet::onKeyswitchEvent(KeyEvent &event) {
       // A SpaceCadet key has just toggled on. First, if we're in no-delay mode,
       // we need to send the event unchanged (with the primary `Key` value),
       // bypassing other `onKeyswitchEvent()` handlers.
-      if (mode_ == Mode::NO_DELAY)
+      if (settings_.mode == Mode::NO_DELAY)
         Runtime.handleKeyEvent(event);
       // Queue the press event and abort; this press event will be resolved
       // later.
@@ -163,16 +152,9 @@ EventHandlerResult SpaceCadet::afterEachCycle() {
     return EventHandlerResult::OK;
 
   // Get timeout value for the pending key.
-#ifndef NDEPRECATED
+  uint16_t pending_timeout = settings_.timeout;
-#pragma GCC diagnostic push
+  if (map_[pending_map_index_].timeout != 0)
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+    pending_timeout = map_[pending_map_index_].timeout;
-  uint16_t pending_timeout = time_out;
-#pragma GCC diagnostic pop
-#else
-  uint16_t pending_timeout = timeout_;
-#endif
-  if (map[pending_map_index_].timeout != 0)
-    pending_timeout = map[pending_map_index_].timeout;
   uint16_t start_time = event_queue_.timestamp(0);
 
   if (Runtime.hasTimeExpired(start_time, pending_timeout)) {
@@ -186,8 +168,8 @@ EventHandlerResult SpaceCadet::afterEachCycle() {
 // Private helper function(s)
 
 int8_t SpaceCadet::getSpaceCadetKeyIndex(Key key) const {
-  for (uint8_t i = 0; !map[i].isEmpty(); ++i) {
+  for (uint8_t i = 0; !map_[i].isEmpty(); ++i) {
-    if (map[i].input == key) {
+    if (map_[i].input == key) {
       return i;
     }
   }
@@ -205,10 +187,10 @@ void SpaceCadet::flushEvent(bool is_tap) {
   if (is_tap && pending_map_index_ >= 0) {
     // If we're in no-delay mode, we should first send the release of the
     // modifier key as a courtesy before sending the tap event.
-    if (mode_ == Mode::NO_DELAY) {
+    if (settings_.mode == Mode::NO_DELAY) {
       Runtime.handleKeyEvent(KeyEvent(event.addr, WAS_PRESSED));
     }
-    event.key = map[pending_map_index_].output;
+    event.key = map_[pending_map_index_].output;
   }
   event_queue_.shift();
   Runtime.handleKeyswitchEvent(event);

plugins/Kaleidoscope-SpaceCadet/src/kaleidoscope/plugin/SpaceCadet.h

@@ -1,7 +1,7 @@
 /* -*- mode: c++ -*-
  * Kaleidoscope-SpaceCadet -- Space Cadet Shift Extended
  * Copyright (C) 2016, 2017, 2018  Keyboard.io, Inc, Ben Gemperline
- * Copyright (C) 2019-2021  Keyboard.io, Inc
+ * Copyright (C) 2019-2022  Keyboard.io, Inc
  *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
@@ -27,15 +27,6 @@
 #include "kaleidoscope/event_handler_result.h"  // for EventHandlerResult
 #include "kaleidoscope/key_defs.h"              // for Key, Key_NoKey
 #include "kaleidoscope/plugin.h"                // for Plugin
-// -----------------------------------------------------------------------------
-// Deprecation warning messages
-#include "kaleidoscope_internal/deprecations.h"  // for DEPRECATED
-
-#define _DEPRECATED_MESSAGE_SPACECADET_TIME_OUT                        \
-  "The `SpaceCadet.time_out` variable is deprecated. Please use the\n" \
-  "`SpaceCadet.setTimeout()` function instead.\n"                      \
-  "This variable will be removed after 2022-09-01."
-// -----------------------------------------------------------------------------
 
 #ifndef SPACECADET_MAP_END
 #define SPACECADET_MAP_END \
@@ -48,7 +39,11 @@ constexpr Key Key_SpaceCadetDisable = Key(kaleidoscope::ranges::SC_LAST);
 namespace kaleidoscope {
 namespace plugin {
 
+class SpaceCadetConfig;
+
 class SpaceCadet : public kaleidoscope::Plugin {
+  friend class SpaceCadetConfig;
+
  public:
   // Internal Class
   // Declarations for the modifier key mapping
@@ -76,61 +71,53 @@ class SpaceCadet : public kaleidoscope::Plugin {
 
   // Methods
   void enable() {
-    mode_ = Mode::ON;
+    settings_.mode = Mode::ON;
   }
   void disable() {
-    mode_ = Mode::OFF;
+    settings_.mode = Mode::OFF;
   }
   void enableWithoutDelay() {
-    mode_ = Mode::NO_DELAY;
+    settings_.mode = Mode::NO_DELAY;
   }
   bool active() {
-    return (mode_ == Mode::ON || mode_ == Mode::NO_DELAY);
+    return (settings_.mode == Mode::ON || settings_.mode == Mode::NO_DELAY);
+  }
+  bool activeWithoutDelay() {
+    return settings_.mode == Mode::NO_DELAY;
   }
-
-#ifndef NDEPRECATED
-  // Publically accessible variables
-  DEPRECATED(SPACECADET_TIME_OUT)
-  static uint16_t time_out;            //  The global timeout in milliseconds
-  static SpaceCadet::KeyBinding *map;  // The map of key bindings
-#endif
 
   void setTimeout(uint16_t timeout) {
-#ifndef NDEPRECATED
+    settings_.timeout = timeout;
-#pragma GCC diagnostic push
+  }
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
-    time_out = timeout;
+  uint16_t getTimeout() {
-#pragma GCC diagnostic pop
+    return settings_.timeout;
-#else
-    timeout_ = timeout;
-#endif
   }
 
   void setMap(KeyBinding *bindings) {
-    map = bindings;
+    map_ = bindings;
   }
 
   EventHandlerResult onNameQuery();
   EventHandlerResult onKeyswitchEvent(KeyEvent &event);
   EventHandlerResult afterEachCycle();
 
- private:
+ protected:
   enum Mode : uint8_t {
     ON,
     OFF,
     NO_DELAY,
   };
-  uint8_t mode_;
+  struct {
+    Mode mode;
 
-#ifdef NDEPRECATED
     // Global timeout in milliseconds
-  uint16_t timeout_ = 200;
+    uint16_t timeout = 200;
+  } settings_;
 
+ private:
   // The map of keybindings
-  KeyBinding *map = nullptr;
+  KeyBinding *map_ = nullptr;
-  // When DEPRECATED public `map[]` variable is removed, this variable name
-  // should be given a trailing underscore to conform to code style guide.
-#endif
 
   KeyEventTracker event_tracker_;
 
@@ -152,7 +139,23 @@ class SpaceCadet : public kaleidoscope::Plugin {
   void flushQueue();
 };
 
+class SpaceCadetConfig : public kaleidoscope::Plugin {
+ public:
+  EventHandlerResult onSetup();
+  EventHandlerResult onFocusEvent(const char *command);
+
+  void disableSpaceCadetIfUnconfigured();
+
+ private:
+  struct Settings {
+    SpaceCadet::Mode mode;
+    uint16_t timeout;
+  };
+  uint16_t settings_base_;
+};
+
 }  // namespace plugin
 }  // namespace kaleidoscope
 
 extern kaleidoscope::plugin::SpaceCadet SpaceCadet;
+extern kaleidoscope::plugin::SpaceCadetConfig SpaceCadetConfig;

plugins/Kaleidoscope-SpaceCadet/src/kaleidoscope/plugin/SpaceCadetConfig.cpp

@@ -0,0 +1,103 @@
+/* -*- mode: c++ -*-
+ * Kaleidoscope-SpaceCadet -- Space Cadet Shift Extended
+ * Copyright (C) 2016, 2017, 2018  Keyboard.io, Inc, Ben Gemperline
+ * Copyright (C) 2019-2021  Keyboard.io, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "SpaceCadet.h"
+#include "kaleidoscope/plugin/SpaceCadet.h"
+
+#include <Arduino.h>                       // for F, __FlashStringHelper
+#include <Kaleidoscope-FocusSerial.h>      // for Focus, FocusSerial
+#include <Kaleidoscope-EEPROM-Settings.h>  // for EEPROMSettings
+#include <stdint.h>                        // for uint16_t, int8_t, uint8_t
+
+#include "kaleidoscope/Runtime.h"               // for Runtime, Runtime_
+#include "kaleidoscope/event_handler_result.h"  // for EventHandlerResult, EventHandlerResult::OK
+
+namespace kaleidoscope {
+namespace plugin {
+
+EventHandlerResult SpaceCadetConfig::onSetup() {
+  settings_base_ = ::EEPROMSettings.requestSlice(sizeof(SpaceCadet::settings_));
+
+  // If our slice is uninitialized, then return early.
+  if (Runtime.storage().isSliceUninitialized(settings_base_, sizeof(SpaceCadet::settings_)))
+    return EventHandlerResult::OK;
+
+  Runtime.storage().get(settings_base_, ::SpaceCadet.settings_);
+
+  return EventHandlerResult::OK;
+}
+
+void SpaceCadetConfig::disableSpaceCadetIfUnconfigured() {
+  if (Runtime.storage().isSliceUninitialized(settings_base_, sizeof(SpaceCadet::settings_)))
+    ::SpaceCadet.disable();
+}
+
+EventHandlerResult SpaceCadetConfig::onFocusEvent(const char *command) {
+  const char *cmd_mode    = PSTR("spacecadet.mode");
+  const char *cmd_timeout = PSTR("spacecadet.timeout");
+
+  // Note: These two calls are intentionally separate, because we want the side
+  // effects. If we were to use `||`, only one of them would run.
+  bool help_handled = ::Focus.handleHelp(command, cmd_mode);
+  help_handled |= ::Focus.handleHelp(command, cmd_timeout);
+
+  if (help_handled)
+    return EventHandlerResult::OK;
+
+  if (strcmp_P(command, cmd_mode) == 0) {
+    if (::Focus.isEOL()) {
+      ::Focus.send(::SpaceCadet.settings_.mode);
+    } else {
+      uint8_t mode;
+      ::Focus.read(mode);
+      switch (mode) {
+      case SpaceCadet::Mode::ON:
+        ::SpaceCadet.settings_.mode = SpaceCadet::Mode::ON;
+        break;
+      case SpaceCadet::Mode::NO_DELAY:
+        ::SpaceCadet.settings_.mode = SpaceCadet::Mode::NO_DELAY;
+        break;
+      case SpaceCadet::Mode::OFF:
+      default:
+        ::SpaceCadet.settings_.mode = SpaceCadet::Mode::OFF;
+        break;
+      }
+
+      Runtime.storage().put(settings_base_, ::SpaceCadet.settings_);
+      Runtime.storage().commit();
+    }
+  } else if (strcmp_P(command, cmd_timeout) == 0) {
+    if (::Focus.isEOL()) {
+      ::Focus.send(::SpaceCadet.settings_.timeout);
+    } else {
+      ::Focus.read(::SpaceCadet.settings_.timeout);
+
+      Runtime.storage().put(settings_base_, ::SpaceCadet.settings_);
+      Runtime.storage().commit();
+    }
+  } else {
+    return EventHandlerResult::OK;
+  }
+
+  return EventHandlerResult::EVENT_CONSUMED;
+}
+
+}  // namespace plugin
+}  // namespace kaleidoscope
+
+kaleidoscope::plugin::SpaceCadetConfig SpaceCadetConfig;

tests/plugins/SpaceCadet/basic/basic.ino

@@ -59,8 +59,8 @@ void setup() {
     SPACECADET_MAP_END
   };
   //Set the map.
-  SpaceCadet.map = spacecadetmap;
+  SpaceCadet.setMap(spacecadetmap);
-  SpaceCadet.time_out = 20;
+  SpaceCadet.setTimeout(20);
 }
 
 void loop() {

tests/plugins/SpaceCadet/no-delay/no-delay.ino

@@ -57,8 +57,8 @@ void setup() {
     SPACECADET_MAP_END
   };
   //Set the map.
-  SpaceCadet.map = spacecadetmap;
+  SpaceCadet.setMap(spacecadetmap);
-  SpaceCadet.time_out = 20;
+  SpaceCadet.setTimeout(20);
 
   SpaceCadet.enableWithoutDelay();
 }