From 85cdb9b2b5e4a43ace04e97dbfa7350aa84efedc Mon Sep 17 00:00:00 2001
From: Jules Aguillon
Date: Sat, 3 Jun 2023 18:11:42 +0200
Subject: Add Voice Typing key

The new key switches to any installed "voice" input method.
If several input methods matches, no effort is made to choose.
Might misbehave with some input methods other than Google's on API < 28.

It is placed on the middle of the arrows on the bottom bar. It is
enabled by default and can be removed in the "Extra keys" option.

The key is not removed from the keyboard if no voice input method
exists.
---
 .../ExtraKeyCheckBoxPreference.java                |  3 +++
 srcs/juloo.keyboard2/KeyEventHandler.java          |  2 ++
 srcs/juloo.keyboard2/KeyValue.java                 |  3 +++
 srcs/juloo.keyboard2/Keyboard2.java                | 22 ++++++++++++++++++++++
 4 files changed, 30 insertions(+)

(limited to 'srcs/juloo.keyboard2')

diff --git a/srcs/juloo.keyboard2/ExtraKeyCheckBoxPreference.java b/srcs/juloo.keyboard2/ExtraKeyCheckBoxPreference.java
index 8938d2d..8f7471a 100644
--- a/srcs/juloo.keyboard2/ExtraKeyCheckBoxPreference.java
+++ b/srcs/juloo.keyboard2/ExtraKeyCheckBoxPreference.java
@@ -16,6 +16,7 @@ public class ExtraKeyCheckBoxPreference extends CheckBoxPreference
   {
     "alt",
     "meta",
+    "voice_typing",
     "accent_aigu",
     "accent_grave",
     "accent_double_aigu",
@@ -56,6 +57,8 @@ public class ExtraKeyCheckBoxPreference extends CheckBoxPreference
   {
     switch (name)
     {
+      case "voice_typing":
+        return true;
       default:
         return false;
     }
diff --git a/srcs/juloo.keyboard2/KeyEventHandler.java b/srcs/juloo.keyboard2/KeyEventHandler.java
index 1a591c8..70b54b9 100644
--- a/srcs/juloo.keyboard2/KeyEventHandler.java
+++ b/srcs/juloo.keyboard2/KeyEventHandler.java
@@ -59,6 +59,7 @@ class KeyEventHandler implements Config.IKeyEventHandler
           case SWITCH_SECOND_BACK: _recv.set_layout(Layout.Primary); break;
           case SWITCH_GREEKMATH: _recv.set_layout(Layout.Greekmath); break;
           case CAPS_LOCK: _recv.set_shift_state(true, true); break;
+          case SWITCH_VOICE_TYPING: _recv.switch_voice_typing(); break;
         }
         break;
       case Keyevent:
@@ -182,6 +183,7 @@ class KeyEventHandler implements Config.IKeyEventHandler
   {
     public void switchInputMethod();
     public void switchToPrevInputMethod();
+    public void switch_voice_typing();
     public void setPane_emoji();
     public void setPane_normal();
     public void showKeyboardConfig();
diff --git a/srcs/juloo.keyboard2/KeyValue.java b/srcs/juloo.keyboard2/KeyValue.java
index 3e84ce8..9f4d985 100644
--- a/srcs/juloo.keyboard2/KeyValue.java
+++ b/srcs/juloo.keyboard2/KeyValue.java
@@ -19,6 +19,7 @@ final class KeyValue
     SWITCH_SECOND_BACK,
     SWITCH_GREEKMATH,
     CAPS_LOCK,
+    SWITCH_VOICE_TYPING,
   }
 
   // Must be evaluated in the reverse order of their values.
@@ -343,6 +344,7 @@ final class KeyValue
       case "change_method_prev": return eventKey(0x09, Event.CHANGE_METHOD_PREV, FLAG_SMALLER_FONT);
       case "action": return eventKey("Action", Event.ACTION, FLAG_SMALLER_FONT); // Will always be replaced
       case "capslock": return eventKey(0x12, Event.CAPS_LOCK, 0);
+      case "voice_typing": return eventKey(0x15, Event.SWITCH_VOICE_TYPING, FLAG_SMALLER_FONT);
 
       case "esc": return keyeventKey("Esc", KeyEvent.KEYCODE_ESCAPE, FLAG_SMALLER_FONT);
       case "enter": return keyeventKey(0x0E, KeyEvent.KEYCODE_ENTER, 0);
@@ -451,6 +453,7 @@ final class KeyValue
     /* Keys description is shown in the settings. */
     addKeyDescr("capslock", "Caps lock");
     addKeyDescr("switch_greekmath", "Greek & math symbols");
+    addKeyDescr("voice_typing", "Voice typing");
   }
 
   // Substitute for [assert], which has no effect on Android.
diff --git a/srcs/juloo.keyboard2/Keyboard2.java b/srcs/juloo.keyboard2/Keyboard2.java
index c41a22f..e5bd726 100644
--- a/srcs/juloo.keyboard2/Keyboard2.java
+++ b/srcs/juloo.keyboard2/Keyboard2.java
@@ -399,6 +399,28 @@ public class Keyboard2 extends InputMethodService
         Keyboard2.this.switchToPreviousInputMethod();
     }
 
+    public void switch_voice_typing()
+    {
+      if (VERSION.SDK_INT < 11) // Due to InputMethodSubtype
+        return;
+      InputMethodManager imm = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
+      for (InputMethodInfo im : imm.getEnabledInputMethodList())
+      {
+        for (InputMethodSubtype imst : imm.getEnabledInputMethodSubtypeList(im, true))
+        {
+          // Switch to the first IM that has a subtype of this mode
+          if (imst.getMode().equals("voice"))
+          {
+            // Best-effort. Good enough for triggering Google's voice typing
+            if (VERSION.SDK_INT < 28)
+              Keyboard2.this.switchInputMethod(im.getId());
+            else
+              Keyboard2.this.switchInputMethod(im.getId(), imst);
+          }
+        }
+      }
+    }
+
     public void setPane_emoji()
     {
       if (_emojiPane == null)
-- 
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