1 files changed, 67 insertions, 0 deletions
diff --git a/mobile/android/base/java/org/mozilla/gecko/preferences/ModifiableHintPreference.java b/mobile/android/base/java/org/mozilla/gecko/preferences/ModifiableHintPreference.java
new file mode 100644
index 000000000..c545472e2
--- /dev/null
+++ b/mobile/android/base/java/org/mozilla/gecko/preferences/ModifiableHintPreference.java
@@ -0,0 +1,67 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; 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.preferences;
+
+import org.mozilla.gecko.R;
+
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.preference.Preference;
+import android.text.Spanned;
+import android.text.SpannableStringBuilder;
+import android.text.style.ImageSpan;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+class ModifiableHintPreference extends Preference {
+    private static final String LOGTAG = "ModifiableHintPref";
+    private final Context mContext;
+
+    private final String MATCH_STRING = "%I";
+    private final int RESID_TEXT_VIEW = R.id.label_search_hint;
+    private final int RESID_DRAWABLE = R.drawable.ab_add_search_engine;
+    private final double SCALE_FACTOR = 0.5;
+
+    public ModifiableHintPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        mContext = context;
+    }
+
+    public ModifiableHintPreference(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        mContext = context;
+    }
+
+    @Override
+    protected View onCreateView(ViewGroup parent) {
+        View thisView = super.onCreateView(parent);
+        configurePreferenceView(thisView);
+        return thisView;
+    }
+
+    private void configurePreferenceView(View view) {
+        TextView textView = (TextView) view.findViewById(RESID_TEXT_VIEW);
+        String searchHint = textView.getText().toString();
+
+        // Use an ImageSpan to include the "add search" icon in the Tip.
+        int imageSpanIndex = searchHint.indexOf(MATCH_STRING);
+        if (imageSpanIndex != -1) {
+            // Scale the resource.
+            Drawable drawable = mContext.getResources().getDrawable(RESID_DRAWABLE);
+            drawable.setBounds(0, 0, (int) (drawable.getIntrinsicWidth() * SCALE_FACTOR),
+                               (int) (drawable.getIntrinsicHeight() * SCALE_FACTOR));
+
+            ImageSpan searchIcon = new ImageSpan(drawable);
+            final SpannableStringBuilder hintBuilder = new SpannableStringBuilder(searchHint);
+
+            // Insert the image.
+            hintBuilder.setSpan(searchIcon, imageSpanIndex, imageSpanIndex + MATCH_STRING.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+            textView.setText(hintBuilder, TextView.BufferType.SPANNABLE);
+        }
+    }
+}