Long-press the usage gauge key to open the usage page

srcs/juloo.keyboard2/Keyboard2View.java

@@ -2,6 +2,7 @@ package juloo.keyboard2;
 
 import android.content.Context;
 import android.content.ContextWrapper;
+import android.content.Intent;
 import android.graphics.Canvas;
 import android.graphics.Insets;
 import android.graphics.Paint;
@@ -11,7 +12,10 @@ import android.graphics.Rect;
 import android.graphics.RectF;
 import android.graphics.Shader;
 import android.inputmethodservice.InputMethodService;
+import android.net.Uri;
 import android.os.Build.VERSION;
+import android.os.Handler;
+import android.os.Looper;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
 import android.view.MotionEvent;
@@ -40,6 +44,11 @@ public class Keyboard2View extends View
 
   private Pointers.Modifiers _mods;
 
+  /** Long-pressing the usage gauge key opens the usage page; a tap stays inert. */
+  private final Handler _gaugeHandler = new Handler(Looper.getMainLooper());
+  private Runnable _gaugeLongPress;
+  private boolean _gaugePressed;
+
   private static int _currentWhat = 0;
 
   private Config _config;
@@ -205,6 +214,7 @@ public class Keyboard2View extends View
     {
       case MotionEvent.ACTION_UP:
       case MotionEvent.ACTION_POINTER_UP:
+        cancelGaugePress();
         _pointers.onTouchUp(event.getPointerId(event.getActionIndex()));
         break;
       case MotionEvent.ACTION_DOWN:
@@ -213,14 +223,23 @@ public class Keyboard2View extends View
         float tx = event.getX(p);
         float ty = event.getY(p);
         KeyboardData.Key key = getKeyAtPosition(tx, ty);
-        if (key != null && !UsageGauge.isGaugeKey(key))
+        if (key != null && UsageGauge.isGaugeKey(key))
+          startGaugePress();
+        else if (key != null)
           _pointers.onTouchDown(tx, ty, event.getPointerId(p), key);
         break;
       case MotionEvent.ACTION_MOVE:
+        if (_gaugePressed)
+        {
+          KeyboardData.Key moved = getKeyAtPosition(event.getX(0), event.getY(0));
+          if (moved == null || !UsageGauge.isGaugeKey(moved))
+            cancelGaugePress();   // slid off the gauge: no longer a press on it
+        }
         for (p = 0; p < event.getPointerCount(); p++)
           _pointers.onTouchMove(event.getX(p), event.getY(p), event.getPointerId(p));
         break;
       case MotionEvent.ACTION_CANCEL:
+        cancelGaugePress();
         _pointers.onTouchCancel();
         break;
       default:
@@ -387,6 +406,50 @@ public class Keyboard2View extends View
     }
   }
 
+  /** Holding the gauge key opens the usage page. Short taps do nothing: the key never types. */
+  private void startGaugePress()
+  {
+    cancelGaugePress();
+    _gaugePressed = true;
+    _gaugeLongPress = new Runnable()
+    {
+      public void run()
+      {
+        if (!_gaugePressed)
+          return;
+        _gaugePressed = false;
+        _gaugeLongPress = null;
+        openUsagePage();
+      }
+    };
+    // Same delay the keyboard uses for every other long press, so it feels like the rest of it.
+    _gaugeHandler.postDelayed(_gaugeLongPress, _config != null ? _config.longPressTimeout : 600L);
+  }
+
+  private void cancelGaugePress()
+  {
+    _gaugePressed = false;
+    if (_gaugeLongPress != null)
+    {
+      _gaugeHandler.removeCallbacks(_gaugeLongPress);
+      _gaugeLongPress = null;
+    }
+  }
+
+  private void openUsagePage()
+  {
+    try
+    {
+      Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(UsageGauge.USAGE_PAGE_URL));
+      intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+      getContext().startActivity(intent);
+    }
+    catch (Exception e)
+    {
+      // No browser, or the launcher refused: the keyboard must never crash over a long press.
+    }
+  }
+
   private void drawUsageGauge(Canvas canvas, float x, float y, float keyW,
       float keyH, Theme.Computed.Key tc)
   {

srcs/juloo.keyboard2/UsageGauge.java

@@ -17,6 +17,8 @@ public final class UsageGauge
   // The layout stores this marker in 'indication', so it identifies the key
   // without adding a character to the generated compose table.
   public static final String KEY_MARKER = "usage_gauge";
+  /** Long-pressing the gauge key opens this in the browser. */
+  public static final String USAGE_PAGE_URL = "https://platform.deepseek.com/usage";
   public static final long REFRESH_AFTER_MS = 5 * 60 * 1000L;
   // The sampler publishes every 15 minutes, so one missed tick must not read as stale: three
   // do. A threshold equal to the interval makes the gauge blink to '--' on every cycle.