Refactor: Centralize logging in a static class

This new class will help write more logs. The LogPrinter is no longer
created everytime the keyboard is opened.

An error log is added if failing to load the custom extra keys.

3 files changed, 40 insertions, 18 deletions

diff --git a/srcs/juloo.keyboard2/CustomExtraKeysPreference.java b/srcs/juloo.keyboard2/CustomExtraKeysPreference.java
index 228eae8..668e6f1 100644
--- a/srcs/juloo.keyboard2/CustomExtraKeysPreference.java
+++ b/srcs/juloo.keyboard2/CustomExtraKeysPreference.java
@@ -109,7 +109,10 @@ public class CustomExtraKeysPreference extends PreferenceCategory
       for (int i = 0; i < arr.length(); i++)
         keys.add(arr.getString(i));
     }
-    catch (JSONException e) {}
+    catch (JSONException e)
+    {
+      Logs.err_load_custom_extra_keys(e);
+    }
     return keys;
   }
 
diff --git a/srcs/juloo.keyboard2/Keyboard2.java b/srcs/juloo.keyboard2/Keyboard2.java
index 4b82c33..48e60db 100644
--- a/srcs/juloo.keyboard2/Keyboard2.java
+++ b/srcs/juloo.keyboard2/Keyboard2.java
@@ -26,8 +26,6 @@ import java.util.Set;
 public class Keyboard2 extends InputMethodService
   implements SharedPreferences.OnSharedPreferenceChangeListener
 {
-  static private final String TAG = "Keyboard2";
-
   private Keyboard2View _keyboardView;
   private KeyEventHandler _keyeventhandler;
   // If not 'null', the layout to use instead of [_currentTextLayout].
@@ -40,8 +38,6 @@ public class Keyboard2 extends InputMethodService
 
   private Config _config;
 
-  private boolean _debug_logs = false;
-
   /** Layout currently visible. */
   KeyboardData current_layout()
   {
@@ -87,7 +83,7 @@ public class Keyboard2 extends InputMethodService
     _config = Config.globalConfig();
     _keyboardView = (Keyboard2View)inflate_view(R.layout.keyboard);
     _keyboardView.reset();
-    _debug_logs = getResources().getBoolean(R.bool.debug_logs);
+    Logs.set_debug_logs(getResources().getBoolean(R.bool.debug_logs));
   }
 
   private List<InputMethodSubtype> getEnabledSubtypes(InputMethodManager imm)
@@ -239,16 +235,6 @@ public class Keyboard2 extends InputMethodService
     return null;
   }
 
-  private void log_editor_info(EditorInfo info)
-  {
-    LogPrinter p = new LogPrinter(Log.DEBUG, TAG);
-    info.dump(p, "");
-    if (info.extras != null)
-      Log.d(TAG, "extras: "+info.extras.toString());
-    Log.d(TAG, "swapEnterActionKey: "+_config.swapEnterActionKey);
-    Log.d(TAG, "actionLabel: "+_config.actionLabel);
-  }
-
   private void refresh_special_layout(EditorInfo info)
   {
     switch (info.inputType & InputType.TYPE_MASK_CLASS)
@@ -274,8 +260,7 @@ public class Keyboard2 extends InputMethodService
     _keyboardView.setKeyboard(current_layout());
     _keyeventhandler.started(info);
     setInputView(_keyboardView);
-    if (_debug_logs)
-      log_editor_info(info);
+    Logs.debug_startup_input_view(info, _config);
   }
 
   @Override
diff --git a/srcs/juloo.keyboard2/Logs.java b/srcs/juloo.keyboard2/Logs.java
new file mode 100644
index 0000000..ee44e21
--- /dev/null
+++ b/srcs/juloo.keyboard2/Logs.java
@@ -0,0 +1,34 @@
+package juloo.keyboard2;
+
+import android.util.Log;
+import android.util.LogPrinter;
+import android.view.inputmethod.EditorInfo;
+import org.json.JSONException;
+
+public final class Logs
+{
+  static final String TAG = "juloo.keyboard2";
+
+  static LogPrinter _debug_logs = null;
+
+  public static void set_debug_logs(boolean d)
+  {
+    _debug_logs = d ? new LogPrinter(Log.DEBUG, TAG) : null;
+  }
+
+  public static void debug_startup_input_view(EditorInfo info, Config conf)
+  {
+    if (_debug_logs == null)
+      return;
+    info.dump(_debug_logs, "");
+    if (info.extras != null)
+      _debug_logs.println("extras: "+info.extras.toString());
+    _debug_logs.println("swapEnterActionKey: "+conf.swapEnterActionKey);
+    _debug_logs.println("actionLabel: "+conf.actionLabel);
+  }
+
+  public static void err_load_custom_extra_keys(JSONException e)
+  {
+    Log.e(TAG, "Failed to read custom extra keys from preferences", e);
+  }
+}