1 files changed, 91 insertions, 0 deletions
diff --git a/src/com/android/settings/SettingsCheckBoxPreference.java b/src/com/android/settings/SettingsCheckBoxPreference.java
new file mode 100644
index 0000000..6acdfe8
--- /dev/null
+++ b/src/com/android/settings/SettingsCheckBoxPreference.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings;
+
+import android.content.Context;
+import android.content.Intent;
+import android.preference.CheckBoxPreference;
+import android.util.TypedValue;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.CheckBox;
+import android.widget.ImageView;
+
+/**
+ * CheckBox preference that optionally shows an icon for launching a settings
+ * {@link android.app.Activity}. The settings activity, if intent for launching
+ * it was provided, can be stared only if the CheckBox in is checked.
+ */
+public class SettingsCheckBoxPreference extends CheckBoxPreference {
+
+    // Integer.MIN_VALUE means not initalized
+    private static int sDimAlpha = Integer.MIN_VALUE;
+
+    private final Intent mSettingsIntent;
+
+    /**
+     * Creates a new instance.
+     *
+     * @param context Context for accessing resources.
+     * @param settingsIntent Intent to use as settings for the item represented by
+     *        this preference. Pass <code>null</code> if there is no associated 
+     *        settings activity.
+     */
+    public SettingsCheckBoxPreference(Context context, Intent settingsIntent) {
+        super(context);
+
+        if (sDimAlpha == Integer.MIN_VALUE) {
+            TypedValue outValue = new TypedValue();
+            context.getTheme().resolveAttribute(android.R.attr.disabledAlpha, outValue, true);
+            sDimAlpha = (int) (outValue.getFloat() * 255);
+        }
+
+        mSettingsIntent = settingsIntent;
+        setWidgetLayoutResource(R.layout.preference_settings_checkbox_widget);
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+
+        ImageView settingsButton = (ImageView) view.findViewById(R.id.settings_button);
+        if (settingsButton == null) {
+            return;
+        }
+        if (mSettingsIntent != null) {
+            CheckBox checkbox = (CheckBox) view.findViewById(com.android.internal.R.id.checkbox);
+            if (checkbox == null) {
+                return;
+            }
+            if (checkbox.isChecked()) {
+                settingsButton.setOnClickListener(new OnClickListener() {
+                    public void onClick(View view) {
+                        getContext().startActivity(mSettingsIntent);
+                    }
+                });
+            }
+            settingsButton.setVisibility(View.VISIBLE);
+            if (checkbox.isChecked() && isEnabled()) {
+                settingsButton.setAlpha(255);
+            } else {
+                settingsButton.setAlpha(sDimAlpha);
+            }
+        } else {
+            settingsButton.setVisibility(View.GONE);
+        }
+    }
+}