Add icons for color inversion and daltonizer

For accessibilty settings, both on the main page
and the shortcut picker.

Also now observing settings that could be toggled
by the shortcut, so changes can be reflected immediately
in the settings ui.

Bug: 34621067
Fixes: 70335904
Test: Observe icons in settings and shortcut picker.
Toggling color inversion and color correction now changes
the setting ui immediately.

Change-Id: Id27b6471376059288ff971e5aea72d76078bef36
diff --git a/color-check-baseline.xml b/color-check-baseline.xml
index cbcdf48..6fa2042 100644
--- a/color-check-baseline.xml
+++ b/color-check-baseline.xml
@@ -2,6 +2,18 @@
 <issues format="4">
 
     <issue
+        id="LintError"
+        severity="Error"
+        message="No `.class` files were found in project &quot;.&quot;, so none of the classfile based checks could be run. Does the project need to be built first?"
+        category="Lint"
+        priority="10"
+        summary="Lint Failure"
+        explanation="This issue type represents a problem running lint itself. Examples include failure to find bytecode for source files (which means certain detectors could not be run), parsing errors in lint configuration files, etc.&#xA;These errors are not errors in your own code, but they are shown to make it clear that some checks were not completed.">
+        <location
+            file="."/>
+    </issue>
+
+    <issue
         id="HardCodedColor"
         severity="Error"
         message="Avoid using hardcoded color"
@@ -93,7 +105,7 @@
         errorLine2="                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
         <location
             file="res/layout-land/choose_lock_pattern.xml"
-            line="152"
+            line="160"
             column="17"/>
     </issue>
 
@@ -1085,7 +1097,7 @@
         errorLine2="                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
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             file="res/layout-land/confirm_lock_pattern_internal.xml"
-            line="110"
+            line="111"
             column="17"/>
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@@ -1289,6 +1301,134 @@
         priority="4"
         summary="Using hardcoded color"
         explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
+        errorLine1="                &lt;item android:color=&quot;#19263238&quot; android:offset=&quot;0.0&quot;/>"
+        errorLine2="                      ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="res/drawable/ic_color_inversion.xml"
+            line="17"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="HardCodedColor"
+        severity="Error"
+        message="Avoid using hardcoded color"
+        category="Correctness"
+        priority="4"
+        summary="Using hardcoded color"
+        explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
+        errorLine1="                &lt;item android:color=&quot;#00212121&quot; android:offset=&quot;1.0&quot;/>"
+        errorLine2="                      ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="res/drawable/ic_color_inversion.xml"
+            line="18"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="HardCodedColor"
+        severity="Error"
+        message="Avoid using hardcoded color"
+        category="Correctness"
+        priority="4"
+        summary="Using hardcoded color"
+        explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
+        errorLine1="                &lt;item android:color=&quot;#19FFFFFF&quot; android:offset=&quot;0.0&quot;/>"
+        errorLine2="                      ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="res/drawable/ic_color_inversion.xml"
+            line="32"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="HardCodedColor"
+        severity="Error"
+        message="Avoid using hardcoded color"
+        category="Correctness"
+        priority="4"
+        summary="Using hardcoded color"
+        explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
+        errorLine1="                &lt;item android:color=&quot;#00FFFFFF&quot; android:offset=&quot;1.0&quot;/>"
+        errorLine2="                      ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="res/drawable/ic_color_inversion.xml"
+            line="33"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="HardCodedColor"
+        severity="Error"
+        message="Avoid using hardcoded color"
+        category="Correctness"
+        priority="4"
+        summary="Using hardcoded color"
+        explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
+        errorLine1="                    &lt;item android:color=&quot;#19263238&quot; android:offset=&quot;0.0&quot;/>"
+        errorLine2="                          ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="res/drawable/ic_daltonizer.xml"
+            line="16"
+            column="27"/>
+    </issue>
+
+    <issue
+        id="HardCodedColor"
+        severity="Error"
+        message="Avoid using hardcoded color"
+        category="Correctness"
+        priority="4"
+        summary="Using hardcoded color"
+        explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
+        errorLine1="                    &lt;item android:color=&quot;#00212121&quot; android:offset=&quot;1.0&quot;/>"
+        errorLine2="                          ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="res/drawable/ic_daltonizer.xml"
+            line="17"
+            column="27"/>
+    </issue>
+
+    <issue
+        id="HardCodedColor"
+        severity="Error"
+        message="Avoid using hardcoded color"
+        category="Correctness"
+        priority="4"
+        summary="Using hardcoded color"
+        explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
+        errorLine1="                &lt;item android:color=&quot;#19FFFFFF&quot; android:offset=&quot;0.0&quot;/>"
+        errorLine2="                      ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="res/drawable/ic_daltonizer.xml"
+            line="36"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="HardCodedColor"
+        severity="Error"
+        message="Avoid using hardcoded color"
+        category="Correctness"
+        priority="4"
+        summary="Using hardcoded color"
+        explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
+        errorLine1="                &lt;item android:color=&quot;#00FFFFFF&quot; android:offset=&quot;1.0&quot;/>"
+        errorLine2="                      ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="res/drawable/ic_daltonizer.xml"
+            line="37"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="HardCodedColor"
+        severity="Error"
+        message="Avoid using hardcoded color"
+        category="Correctness"
+        priority="4"
+        summary="Using hardcoded color"
+        explanation="Hardcoded color values are bad because theme changes cannot be uniformly applied.Instead use the theme specific colors such as `?android:attr/textColorPrimary` in attributes.&#xA;This ensures that a theme change from a light to a dark theme can be uniformlyapplied across the app."
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         <location
@@ -1869,7 +2009,7 @@
         errorLine2="        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
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             file="res/layout/settings_main_dashboard.xml"
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+            line="30"
             column="9"/>
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diff --git a/res/drawable/ic_color_inversion.xml b/res/drawable/ic_color_inversion.xml
new file mode 100644
index 0000000..aa59f5a
--- /dev/null
+++ b/res/drawable/ic_color_inversion.xml
@@ -0,0 +1,52 @@
+<!--
+    Copyright 2017 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.
+-->
+<vector android:height="192dp" android:viewportHeight="192.0"
+    android:viewportWidth="192.0" android:width="192dp"
+    xmlns:aapt="http://schemas.android.com/aapt" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#546E7A" android:pathData="M37.2,173.6l-28.5,-90c-1.7,-5.8 0.3,-12 5,-15.6l73.6,-57.1c5.2,-4 12.5,-4 17.6,0.1L178.6,70c4.6,3.7 6.5,9.9 4.8,15.6l-28.5,88.2c-1.9,6.1 -7.4,10.2 -13.7,10.2H50.8C44.5,183.9 39,179.7 37.2,173.6z"/>
+    <path android:fillAlpha="0.2" android:fillColor="#263238"
+        android:pathData="M183.3,84.5l-28.5,88.2c-1.8,6.1 -7.4,10.2 -13.7,10.2H50.9c-6.3,0 -11.9,-4.2 -13.7,-10.3l-28.5,-90C8.2,81.4 8,80.1 8,78.9c-0.1,1.6 0.1,3.1 0.6,4.7l28.5,90c1.8,6.1 7.4,10.3 13.7,10.3h90.3c6.3,0 11.8,-4.1 13.7,-10.2l28.5,-88.2c0.5,-1.6 0.7,-3.2 0.6,-4.7C183.9,82 183.7,83.3 183.3,84.5z" android:strokeAlpha="0.2"/>
+    <path android:fillAlpha="0.2" android:fillColor="#FFFFFF"
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+    <path android:fillAlpha="0.2" android:fillColor="#FFFFFF"
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+        <aapt:attr name="android:fillColor">
+            <gradient android:endX="139.008" android:endY="147.6131"
+                android:startX="98.1033" android:startY="106.7084" android:type="linear">
+                <item android:color="#19263238" android:offset="0.0"/>
+                <item android:color="#00212121" android:offset="1.0"/>
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path android:fillAlpha="0.1" android:fillColor="#FF000000"
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+        <aapt:attr name="android:fillColor">
+            <gradient android:centerX="21.9873"
+                android:centerY="23.7751"
+                android:gradientRadius="158.0384" android:type="radial">
+                <item android:color="#19FFFFFF" android:offset="0.0"/>
+                <item android:color="#00FFFFFF" android:offset="1.0"/>
+            </gradient>
+        </aapt:attr>
+    </path>
+</vector>
diff --git a/res/drawable/ic_daltonizer.xml b/res/drawable/ic_daltonizer.xml
new file mode 100644
index 0000000..04e397d
--- /dev/null
+++ b/res/drawable/ic_daltonizer.xml
@@ -0,0 +1,56 @@
+<!--
+    Copyright 2017 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.
+-->
+<vector android:height="192dp" android:viewportHeight="192.0"
+    android:viewportWidth="192.0" android:width="192dp"
+    xmlns:aapt="http://schemas.android.com/aapt" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#00BCD4" android:pathData="M37.1,173.5l-28.5,-90c-1.7,-5.8 0.3,-12 5,-15.6l73.6,-57.1c5.2,-4 12.5,-4 17.6,0.1l73.8,58.9c4.6,3.7 6.5,9.9 4.8,15.6l-28.5,88.2c-1.9,6.1 -7.4,10.2 -13.7,10.2H50.8C44.5,183.8 39,179.6 37.1,173.5z"/>
+    <path android:fillAlpha="0.2" android:fillColor="#263238"
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+    <path android:fillAlpha="0.2" android:fillColor="#FFFFFF"
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+    <group>
+        <clip-path android:pathData="M37.1,173.5l-28.5,-90c-1.7,-5.8 0.3,-12 5,-15.6l73.6,-57.1c5.2,-4 12.5,-4 17.6,0.1l73.8,58.9c4.6,3.7 6.5,9.9 4.8,15.6l-28.5,88.2c-1.9,6.1 -7.4,10.2 -13.7,10.2H50.8C44.5,183.8 39,179.6 37.1,173.5z M 0,0"/>
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+            <gradient android:centerX="21.977" android:centerY="23.6809"
+                android:gradientRadius="158.0384" android:type="radial">
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+                <item android:color="#00FFFFFF" android:offset="1.0"/>
+            </gradient>
+        </aapt:attr>
+    </path>
+</vector>
diff --git a/res/xml/accessibility_settings.xml b/res/xml/accessibility_settings.xml
index 7728a07..d7d2e02 100644
--- a/res/xml/accessibility_settings.xml
+++ b/res/xml/accessibility_settings.xml
@@ -118,12 +118,14 @@
         <Preference
                 android:fragment="com.android.settings.accessibility.ToggleDaltonizerPreferenceFragment"
                 android:key="daltonizer_preference_screen"
-                android:title="@string/accessibility_display_daltonizer_preference_title" />
+                android:title="@string/accessibility_display_daltonizer_preference_title"
+                android:icon="@drawable/ic_daltonizer"/>
 
         <SwitchPreference
                 android:key="toggle_inversion_preference"
                 android:title="@string/accessibility_display_inversion_preference_title"
                 android:summary="@string/accessibility_display_inversion_preference_subtitle"
-                android:persistent="false" />
+                android:persistent="false"
+                android:icon="@drawable/ic_color_inversion"/>
     </PreferenceCategory>
 </PreferenceScreen>
diff --git a/src/com/android/settings/accessibility/AccessibilitySettings.java b/src/com/android/settings/accessibility/AccessibilitySettings.java
index 0611b09..2161415 100644
--- a/src/com/android/settings/accessibility/AccessibilitySettings.java
+++ b/src/com/android/settings/accessibility/AccessibilitySettings.java
@@ -42,6 +42,7 @@
 import android.view.KeyEvent;
 import android.view.accessibility.AccessibilityManager;
 
+import com.android.internal.accessibility.AccessibilityShortcutController;
 import com.android.internal.content.PackageMonitor;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.internal.view.RotationPolicy;
@@ -57,6 +58,7 @@
 import com.android.settingslib.accessibility.AccessibilityUtils;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -172,13 +174,7 @@
         }
     };
 
-    private final SettingsContentObserver mSettingsContentObserver =
-            new SettingsContentObserver(mHandler) {
-                @Override
-                public void onChange(boolean selfChange, Uri uri) {
-                    updateServicePreferences();
-                }
-            };
+    private final SettingsContentObserver mSettingsContentObserver;
 
     private final RotationPolicyListener mRotationPolicyListener = new RotationPolicyListener() {
         @Override
@@ -224,6 +220,22 @@
                 .getBoolean(com.android.internal.R.bool.config_setColorTransformAccelerated);
     }
 
+    public AccessibilitySettings() {
+        // Observe changes to anything that the shortcut can toggle, so we can reflect updates
+        final Collection<AccessibilityShortcutController.ToggleableFrameworkFeatureInfo> features =
+                AccessibilityShortcutController.getFrameworkShortcutFeaturesMap().values();
+        final List<String> shortcutFeatureKeys = new ArrayList<>(features.size());
+        for (AccessibilityShortcutController.ToggleableFrameworkFeatureInfo feature : features) {
+            shortcutFeatureKeys.add(feature.getSettingKey());
+        }
+        mSettingsContentObserver = new SettingsContentObserver(mHandler, shortcutFeatureKeys) {
+            @Override
+            public void onChange(boolean selfChange, Uri uri) {
+                updateAllPreferences();
+            }
+        };
+    }
+
     @Override
     public int getMetricsCategory() {
         return MetricsEvent.ACCESSIBILITY;
diff --git a/src/com/android/settings/accessibility/SettingsContentObserver.java b/src/com/android/settings/accessibility/SettingsContentObserver.java
index c3baec5..de67f6c 100644
--- a/src/com/android/settings/accessibility/SettingsContentObserver.java
+++ b/src/com/android/settings/accessibility/SettingsContentObserver.java
@@ -22,16 +22,28 @@
 import android.os.Handler;
 import android.provider.Settings;
 
+import java.util.ArrayList;
+import java.util.List;
+
 abstract class SettingsContentObserver extends ContentObserver {
+    private final List<String> mKeysToObserve = new ArrayList<>(2);
+
     public SettingsContentObserver(Handler handler) {
         super(handler);
+        mKeysToObserve.add(Settings.Secure.ACCESSIBILITY_ENABLED);
+        mKeysToObserve.add(Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES);
+    }
+
+    public SettingsContentObserver(Handler handler, List<String> keysToObserve) {
+        this(handler);
+        mKeysToObserve.addAll(keysToObserve);
     }
 
     public void register(ContentResolver contentResolver) {
-        contentResolver.registerContentObserver(Settings.Secure.getUriFor(
-                Settings.Secure.ACCESSIBILITY_ENABLED), false, this);
-        contentResolver.registerContentObserver(Settings.Secure.getUriFor(
-                Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES), false, this);
+        for (int i = 0; i < mKeysToObserve.size(); i++) {
+            contentResolver.registerContentObserver(
+                    Settings.Secure.getUriFor(mKeysToObserve.get(i)), false, this);
+        }
     }
 
     public void unregister(ContentResolver contentResolver) {
diff --git a/src/com/android/settings/accessibility/ShortcutServicePickerFragment.java b/src/com/android/settings/accessibility/ShortcutServicePickerFragment.java
index e0c41be..52c1a0d 100644
--- a/src/com/android/settings/accessibility/ShortcutServicePickerFragment.java
+++ b/src/com/android/settings/accessibility/ShortcutServicePickerFragment.java
@@ -16,6 +16,8 @@
 package com.android.settings.accessibility;
 
 import static android.content.DialogInterface.BUTTON_POSITIVE;
+import static com.android.internal.accessibility.AccessibilityShortcutController.COLOR_INVERSION_COMPONENT_NAME;
+import static com.android.internal.accessibility.AccessibilityShortcutController.DALTONIZER_COMPONENT_NAME;
 
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.app.Activity;
@@ -85,9 +87,16 @@
         Map<ComponentName, ToggleableFrameworkFeatureInfo> frameworkFeatureInfoMap =
                 AccessibilityShortcutController.getFrameworkShortcutFeaturesMap();
         for (ComponentName componentName : frameworkFeatureInfoMap.keySet()) {
-            // Lookup icon
+            final int iconId;
+            if (componentName.equals(COLOR_INVERSION_COMPONENT_NAME)) {
+                iconId = R.drawable.ic_color_inversion;
+            } else if (componentName.equals(DALTONIZER_COMPONENT_NAME)) {
+                iconId = R.drawable.ic_daltonizer;
+            } else {
+                iconId = R.drawable.empty_icon;
+            }
             candidates.add(new FrameworkCandidateInfo(frameworkFeatureInfoMap.get(componentName),
-                    R.drawable.empty_icon, componentName.flattenToString()));
+                    iconId, componentName.flattenToString()));
         }
         for (int i = 0; i < numInstalledServices; i++) {
             final AccessibilityServiceInfo installedServiceInfo = installedServices.get(i);