Add the capslock key

The key enable caps lock immediately. It does nothing if caps lock is
already enabled.

It is not present on the keyboard by default but a place is defined on
every layout, top-right of the shift key. It can be enabled in the
settings.

The icon is from materialdesignicons.com.

6 files changed, 21 insertions, 10 deletions

diff --git a/srcs/juloo.keyboard2/ExtraKeyCheckBoxPreference.java b/srcs/juloo.keyboard2/ExtraKeyCheckBoxPreference.java
index d0734b9..e66c2cc 100644
--- a/srcs/juloo.keyboard2/ExtraKeyCheckBoxPreference.java
+++ b/srcs/juloo.keyboard2/ExtraKeyCheckBoxPreference.java
@@ -33,6 +33,7 @@ public class ExtraKeyCheckBoxPreference extends CheckBoxPreference
     "ß",
     "£",
     "switch_greekmath",
+    "capslock",
   };
 
   public static boolean default_checked(String name)
diff --git a/srcs/juloo.keyboard2/KeyEventHandler.java b/srcs/juloo.keyboard2/KeyEventHandler.java
index 57f15f6..4623dec 100644
--- a/srcs/juloo.keyboard2/KeyEventHandler.java
+++ b/srcs/juloo.keyboard2/KeyEventHandler.java
@@ -35,6 +35,7 @@ class KeyEventHandler implements Config.IKeyEventHandler
           case ACTION: _recv.performAction(); break;
           case SWITCH_PROGRAMMING: _recv.switchProgramming(); break;
           case SWITCH_GREEKMATH: _recv.switchGreekmath(); break;
+          case CAPS_LOCK: _recv.enableCapsLock(); break;
         }
         break;
       case Keyevent:
@@ -102,6 +103,7 @@ class KeyEventHandler implements Config.IKeyEventHandler
     public void setPane_normal();
     public void showKeyboardConfig();
     public void performAction();
+    public void enableCapsLock();
 
     public void switchMain();
     public void switchNumeric();
diff --git a/srcs/juloo.keyboard2/KeyValue.java b/srcs/juloo.keyboard2/KeyValue.java
index 9b89101..9c88b4a 100644
--- a/srcs/juloo.keyboard2/KeyValue.java
+++ b/srcs/juloo.keyboard2/KeyValue.java
@@ -16,7 +16,8 @@ final class KeyValue
     CHANGE_METHOD,
     ACTION,
     SWITCH_PROGRAMMING,
-    SWITCH_GREEKMATH
+    SWITCH_GREEKMATH,
+    CAPS_LOCK,
   }
 
   // Must be evaluated in the reverse order of their values.
@@ -287,6 +288,7 @@ final class KeyValue
     addEventKey("switch_greekmath", "πλ∇¬", Event.SWITCH_GREEKMATH, FLAG_SMALLER_FONT);
     addEventKey("change_method", "\u0009", Event.CHANGE_METHOD, FLAG_KEY_FONT | FLAG_SMALLER_FONT);
     addEventKey("action", "Action", Event.ACTION, FLAG_SMALLER_FONT); // Will always be replaced
+    addEventKey("capslock", "\u0012", Event.CAPS_LOCK, FLAG_KEY_FONT);
 
     addKeyeventKey("esc", "Esc", KeyEvent.KEYCODE_ESCAPE, FLAG_SMALLER_FONT);
     addKeyeventKey("enter", "\u000E", KeyEvent.KEYCODE_ENTER, FLAG_KEY_FONT);
diff --git a/srcs/juloo.keyboard2/Keyboard2.java b/srcs/juloo.keyboard2/Keyboard2.java
index 12ee196..35d5b26 100644
--- a/srcs/juloo.keyboard2/Keyboard2.java
+++ b/srcs/juloo.keyboard2/Keyboard2.java
@@ -63,9 +63,9 @@ public class Keyboard2 extends InputMethodService
   public void update_shift_state(boolean should_enable, boolean should_disable)
   {
     if (should_enable)
-      _keyboardView.set_shift_state(true);
+      _keyboardView.set_shift_state(true, false);
     else if (should_disable)
-      _keyboardView.set_shift_state(false);
+      _keyboardView.set_shift_state(false, false);
   }
 
   private List<InputMethodSubtype> getEnabledSubtypes(InputMethodManager imm)
@@ -314,6 +314,11 @@ public class Keyboard2 extends InputMethodService
       conn.performEditorAction(_config.actionId);
     }
 
+    public void enableCapsLock()
+    {
+      _keyboardView.set_shift_state(true, true);
+    }
+
     public void switchMain()
     {
       _keyboardView.setKeyboard(getLayout(_currentTextLayout));
diff --git a/srcs/juloo.keyboard2/Keyboard2View.java b/srcs/juloo.keyboard2/Keyboard2View.java
index e613925..4742235 100644
--- a/srcs/juloo.keyboard2/Keyboard2View.java
+++ b/srcs/juloo.keyboard2/Keyboard2View.java
@@ -100,12 +100,12 @@ public class Keyboard2View extends View
   }
 
   /** Called by auto-capitalisation. */
-  public void set_shift_state(boolean state)
+  public void set_shift_state(boolean state, boolean lock)
   {
     if (_keyboard == null || _shift_key == null)
       return;
     if (state)
-      _pointers.add_fake_pointer(_shift_kv, _shift_key);
+      _pointers.add_fake_pointer(_shift_kv, _shift_key, lock);
     else
       _pointers.remove_fake_pointer(_shift_kv, _shift_key);
     invalidate();
diff --git a/srcs/juloo.keyboard2/Pointers.java b/srcs/juloo.keyboard2/Pointers.java
index 2ac55bb..35299ab 100644
--- a/srcs/juloo.keyboard2/Pointers.java
+++ b/srcs/juloo.keyboard2/Pointers.java
@@ -75,13 +75,14 @@ public final class Pointers implements Handler.Callback
   }
 
   /** Fake pointers are latched and not lockable. */
-  public void add_fake_pointer(KeyValue kv, KeyboardData.Key key)
+  public void add_fake_pointer(KeyValue kv, KeyboardData.Key key, boolean locked)
   {
-    // Avoid adding a fake pointer to a key that is already down.
-    if (isKeyDown(key))
-      return;
+    remove_fake_pointer(kv, key);
     Pointer ptr = new Pointer(-1, key, kv, 0.f, 0.f, Modifiers.EMPTY);
-    ptr.flags = ptr.flags & ~(KeyValue.FLAG_LATCH | KeyValue.FLAG_LOCK | KeyValue.FLAG_FAKE_PTR);
+    ptr.flags &= ~KeyValue.FLAG_LATCH;
+    ptr.flags |= KeyValue.FLAG_LOCK | KeyValue.FLAG_FAKE_PTR;
+    if (locked)
+      ptr.flags = (ptr.flags & ~KeyValue.FLAG_LOCK) | KeyValue.FLAG_LOCKED;
     _ptrs.add(ptr);
   }