bluetooth: Add RSSI icon for bluetooth choosers.

chrome/android/java/src/org/chromium/chrome/browser/BluetoothChooserDialog.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser;
 
 import android.Manifest;
 import android.app.Activity;
 import android.bluetooth.BluetoothAdapter;
 import android.content.BroadcastReceiver;
@@ skipping 58 matching lines @@
     String mOrigin;
 
     // The security level of the connection to the site wanting to pair with the
     // bluetooth devices. For valid values see SecurityStateModel::SecurityLevel.
     int mSecurityLevel;
 
     @VisibleForTesting
     Drawable mConnectedIcon;
     @VisibleForTesting
     String mConnectedIconDescription;
+    @VisibleForTesting
+    Drawable[] mSignalStrengthLevelIcon;
 
     // A pointer back to the native part of the implementation for this dialog.
     long mNativeBluetoothChooserDialogPtr;
 
     // Used to keep track of when the Mode Changed Receiver is registered.
     boolean mIsLocationModeChangedReceiverRegistered;
 
     // The local device Bluetooth adapter.
     private final BluetoothAdapter mAdapter;
 
@@ skipping 32 matching lines @@
     BluetoothChooserDialog(WindowAndroid windowAndroid, String origin, int securityLevel,
             long nativeBluetoothChooserDialogPtr) {
         mWindowAndroid = windowAndroid;
         mActivity = windowAndroid.getActivity().get();
         assert mActivity != null;
         mOrigin = origin;
         mSecurityLevel = securityLevel;
         mNativeBluetoothChooserDialogPtr = nativeBluetoothChooserDialogPtr;
         mAdapter = BluetoothAdapter.getDefaultAdapter();
 
-        Resources res = mActivity.getResources();
+        // Initialize icons.
+        mConnectedIcon = getIconWithRowIconColorStateList(R.drawable.ic_bluetooth_connected);
+        mConnectedIconDescription = mActivity.getString(R.string.bluetooth_device_connected);
 
-        // Initialize icons.
-        mConnectedIcon = VectorDrawableCompat.create(
-                res, R.drawable.ic_bluetooth_connected, mActivity.getTheme());
-        DrawableCompat.setTintList(mConnectedIcon,
-                ApiCompatibilityUtils.getColorStateList(res, R.color.item_chooser_row_icon_color));
-
-        mConnectedIconDescription = mActivity.getString(R.string.bluetooth_device_connected);
+        mSignalStrengthLevelIcon = new Drawable[] {
+                getIconWithRowIconColorStateList(R.drawable.ic_signal_cellular_0_bar),
+                getIconWithRowIconColorStateList(R.drawable.ic_signal_cellular_1_bar),
+                getIconWithRowIconColorStateList(R.drawable.ic_signal_cellular_2_bar),
+                getIconWithRowIconColorStateList(R.drawable.ic_signal_cellular_3_bar),
+                getIconWithRowIconColorStateList(R.drawable.ic_signal_cellular_4_bar)};
 
         if (mAdapter == null) {
             Log.i(TAG, "BluetoothChooserDialog: Default Bluetooth adapter not found.");
         }
         mAdapterOffStatus =
                 SpanApplier.applySpans(mActivity.getString(R.string.bluetooth_adapter_off_help),
                         new SpanInfo("<link>", "</link>",
                                 new BluetoothClickableSpan(LinkType.ADAPTER_OFF_HELP, mActivity)));
     }
 
+    private Drawable getIconWithRowIconColorStateList(int icon) {
+        Resources res = mActivity.getResources();
+
+        Drawable drawable = VectorDrawableCompat.create(res, icon, mActivity.getTheme());
+        DrawableCompat.setTintList(drawable,
+                ApiCompatibilityUtils.getColorStateList(res, R.color.item_chooser_row_icon_color));
+        return drawable;
+    }
+
     /**
      * Show the BluetoothChooserDialog.
      */
     @VisibleForTesting
     void show() {
         // Emphasize the origin.
         Profile profile = Profile.getLastUsedProfile();
         SpannableString origin = new SpannableString(mOrigin);
         OmniboxUrlEmphasizer.emphasizeUrl(
                 origin, mActivity.getResources(), profile, mSecurityLevel, false, true, true);
@@ skipping 206 matching lines @@
             return null;
         }
         BluetoothChooserDialog dialog = new BluetoothChooserDialog(
                 windowAndroid, origin, securityLevel, nativeBluetoothChooserDialogPtr);
         dialog.show();
         return dialog;
     }
 
     @VisibleForTesting
     @CalledByNative
-    void addOrUpdateDevice(String deviceId, String deviceName, boolean isGATTConnected) {
+    void addOrUpdateDevice(
+            String deviceId, String deviceName, boolean isGATTConnected, int signalStrengthLevel) {
         Drawable icon = null;
         String iconDescription = null;
         if (isGATTConnected) {
             icon = mConnectedIcon.getConstantState().newDrawable();
             iconDescription = mConnectedIconDescription;
+        } else if (signalStrengthLevel != -1) {
+            icon = mSignalStrengthLevelIcon[signalStrengthLevel].getConstantState().newDrawable();
+            iconDescription = mActivity.getResources().getQuantityString(
+                    R.plurals.signal_strength_level_n_bars, signalStrengthLevel,
+                    signalStrengthLevel);
         }
 
         mItemChooserDialog.addOrUpdateItem(deviceId, deviceName, icon, iconDescription);
     }
 
     @VisibleForTesting
     @CalledByNative
     void closeDialog() {
         mNativeBluetoothChooserDialogPtr = 0;
         mItemChooserDialog.dismiss();
@@ skipping 43 matching lines @@
     @VisibleForTesting
     native void nativeRestartSearch(long nativeBluetoothChooserAndroid);
     // Help links.
     @VisibleForTesting
     native void nativeShowBluetoothOverviewLink(long nativeBluetoothChooserAndroid);
     @VisibleForTesting
     native void nativeShowBluetoothAdapterOffLink(long nativeBluetoothChooserAndroid);
     @VisibleForTesting
     native void nativeShowNeedLocationPermissionLink(long nativeBluetoothChooserAndroid);
 }