1 files changed, 48 insertions, 0 deletions
diff --git a/mobile/android/base/java/org/mozilla/gecko/widget/FadedTextView.java b/mobile/android/base/java/org/mozilla/gecko/widget/FadedTextView.java
new file mode 100644
index 000000000..e10433083
--- /dev/null
+++ b/mobile/android/base/java/org/mozilla/gecko/widget/FadedTextView.java
@@ -0,0 +1,48 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.widget;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.text.Layout;
+import android.util.AttributeSet;
+
+import org.mozilla.gecko.R;
+import org.mozilla.gecko.widget.themed.ThemedTextView;
+
+/**
+ * An implementation of FadedTextView should fade the end of the text
+ * by gecko:fadeWidth amount, if the text is too long and requires an ellipsis.
+ */
+public abstract class FadedTextView extends ThemedTextView {
+    // Width of the fade effect from end of the view.
+    protected final int fadeWidth;
+
+    public FadedTextView(final Context context, final AttributeSet attrs) {
+        super(context, attrs);
+
+        setSingleLine(true);
+        setEllipsize(null);
+
+        final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.FadedTextView);
+        fadeWidth = a.getDimensionPixelSize(R.styleable.FadedTextView_fadeWidth, 0);
+        a.recycle();
+    }
+
+    protected int getAvailableWidth() {
+        return getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight();
+    }
+
+    protected boolean needsEllipsis() {
+        final int width = getAvailableWidth();
+        if (width <= 0) {
+            return false;
+        }
+
+        final Layout layout = getLayout();
+        return (layout != null && layout.getLineWidth(0) > width);
+    }
+}