Candidates view

The `CandidatesView` is implemented as a `LinearLayout` that is divided
horizontally with up to 3 `TextView`. It might in the future contain
buttons on the sides.

The candidate view is nested into the input view rather than using
Android's `setCandidatesView` and callbacks as the API is unreliable and
complicated.

The first suggestion goes in the middle to be more accessible. The
second suggestion goes on the right to be more accessible to the
right-handed, because it must go somewhere.

1 files changed, 24 insertions, 6 deletions

diff --git a/srcs/juloo.keyboard2/Keyboard2.java b/srcs/juloo.keyboard2/Keyboard2.java
index 1efe0f5..c7d7e3d 100644
--- a/srcs/juloo.keyboard2/Keyboard2.java
+++ b/srcs/juloo.keyboard2/Keyboard2.java
@@ -29,7 +29,10 @@ import juloo.keyboard2.prefs.LayoutsPreference;
 public class Keyboard2 extends InputMethodService
   implements SharedPreferences.OnSharedPreferenceChangeListener
 {
+  /** The view containing the keyboard and candidates view. */
+  private ViewGroup _container_view;
   private Keyboard2View _keyboardView;
+  private CandidatesView _candidates_view;
   private KeyEventHandler _keyeventhandler;
   /** If not 'null', the layout to use instead of [_config.current_layout]. */
   private KeyboardData _currentSpecialLayout;
@@ -115,9 +118,8 @@ public class Keyboard2 extends InputMethodService
     Config.initGlobalConfig(prefs, getResources(), _keyeventhandler, _foldStateTracker.isUnfolded());
     prefs.registerOnSharedPreferenceChangeListener(this);
     _config = Config.globalConfig();
-    _keyboardView = (Keyboard2View)inflate_view(R.layout.keyboard);
-    _keyboardView.reset();
     Logs.set_debug_logs(getResources().getBoolean(R.bool.debug_logs));
+    create_keyboard_view();
     ClipboardHistoryService.on_startup(this, _keyeventhandler);
     _foldStateTracker.setChangedCallback(() -> { refresh_config(); });
   }
@@ -129,6 +131,13 @@ public class Keyboard2 extends InputMethodService
     _foldStateTracker.close();
   }
 
+  private void create_keyboard_view()
+  {
+    _container_view = (ViewGroup)inflate_view(R.layout.keyboard);
+    _keyboardView = (Keyboard2View)_container_view.findViewById(R.id.keyboard_view);
+    _candidates_view = (CandidatesView)_container_view.findViewById(R.id.candidates_view);
+  }
+
   private List<InputMethodSubtype> getEnabledSubtypes(InputMethodManager imm)
   {
     String pkg = getPackageName();
@@ -198,6 +207,13 @@ public class Keyboard2 extends InputMethodService
     _localeTextLayout = default_layout;
   }
 
+  private void refresh_candidates_view(EditorInfo info)
+  {
+    boolean should_show = CandidatesView.should_show(info);
+    _config.should_show_candidates_view = should_show;
+    _candidates_view.setVisibility(should_show ? View.VISIBLE : View.GONE);
+  }
+
   /** Might re-create the keyboard view. [_keyboardView.setKeyboard()] and
       [setInputView()] must be called soon after. */
   private void refresh_config()
@@ -208,11 +224,13 @@ public class Keyboard2 extends InputMethodService
     // Refreshing the theme config requires re-creating the views
     if (prev_theme != _config.theme)
     {
-      _keyboardView = (Keyboard2View)inflate_view(R.layout.keyboard);
+      create_keyboard_view();
       _emojiPane = null;
       _clipboard_pane = null;
-      setInputView(_keyboardView);
+      setInputView(_container_view);
     }
+    // Set keyboard background opacity
+    _container_view.getBackground().setAlpha(_config.keyboardOpacity);
     _keyboardView.reset();
   }
 
@@ -234,10 +252,11 @@ public class Keyboard2 extends InputMethodService
   {
     _config.editor_config.refresh(info, getResources());
     refresh_config();
+    refresh_candidates_view(info);
     _currentSpecialLayout = refresh_special_layout();
     _keyboardView.setKeyboard(current_layout());
     _keyeventhandler.started(_config);
-    setInputView(_keyboardView);
+    setInputView(_container_view);
     Logs.debug_startup_input_view(info, _config);
   }
 
@@ -252,7 +271,6 @@ public class Keyboard2 extends InputMethodService
     v.requestApplyInsets();
   }
 
-
   @Override
   public void updateFullscreenMode() {
     super.updateFullscreenMode();