Add system settings intent for location settings

Location settings will require system wide location
to be enabled.

Change-Id: I36cc390abe17ea3b61f2fdfb88181e8a3747bf97
diff --git a/src/com/android/browser/BrowserLocationListPreference.java b/src/com/android/browser/BrowserLocationListPreference.java
new file mode 100644
index 0000000..1bff598
--- /dev/null
+++ b/src/com/android/browser/BrowserLocationListPreference.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of The Linux Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+package com.android.browser;
+
+import android.content.Context;
+import android.content.Intent;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.View;
+
+import org.codeaurora.swe.PermissionsServiceFactory;
+
+public class BrowserLocationListPreference extends ListPreference {
+
+    View mView;
+    private boolean mSwitchEnabled = true; //internal state tracker
+    private OnPreferenceClickListener onPreferenceClickListener;
+    private OnPreferenceChangeListener oldPreferenceChangeListener;
+
+    public BrowserLocationListPreference(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public BrowserLocationListPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+    }
+
+    public BrowserLocationListPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public BrowserLocationListPreference(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+        mView = view;
+        if (oldPreferenceChangeListener == null){ //set it just the first time
+            oldPreferenceChangeListener = getOnPreferenceChangeListener();
+        }
+        if (mView != null && mSwitchEnabled) {
+            mView.setAlpha((float) 1.0);
+        }
+        else if (mView != null){
+            mView.setAlpha((float) 0.5); //Gray out the option
+        }
+    }
+
+    @Override
+    public void onClick(){
+        //This shows the popup
+        if (PermissionsServiceFactory.isSystemLocationEnabled() && mSwitchEnabled) super.onClick();
+        else {
+            Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
+            getContext().startActivity(intent);
+        };
+    }
+
+    @Override
+    public void setEnabled(boolean enable){
+        // setEnabled will not call super.setEnabled(enable) because
+        // we want to avoid the default behavior entirely.
+        if (!mSwitchEnabled && enable) { //Transition from off to on
+            if(mView != null)
+                mView.setAlpha((float) 1.0);
+            setOnPreferenceClickListener(onPreferenceClickListener);
+            setOnPreferenceChangeListener(oldPreferenceChangeListener);
+        }
+        else if(!enable && mSwitchEnabled) { //Transition from on to off
+            if (mView != null) {
+                mView.setAlpha((float) 0.5); //Gray out the option
+            }
+            onPreferenceClickListener = getOnPreferenceClickListener();
+            if (oldPreferenceChangeListener == null) //to protect against calling !enable onresume()
+                oldPreferenceChangeListener = getOnPreferenceChangeListener();
+
+            // Prevent clicks from registering.
+            setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object newValue) {
+                    return false; // Do Not update
+                }
+            });
+        }
+        mSwitchEnabled = enable;
+    }
+}
diff --git a/src/com/android/browser/BrowserLocationSwitchPreference.java b/src/com/android/browser/BrowserLocationSwitchPreference.java
new file mode 100644
index 0000000..6e57fe2
--- /dev/null
+++ b/src/com/android/browser/BrowserLocationSwitchPreference.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of The Linux Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+package com.android.browser;
+
+import android.content.Context;
+import android.content.Intent;
+import android.preference.Preference;
+import android.preference.SwitchPreference;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.View;
+
+import org.codeaurora.swe.PermissionsServiceFactory;
+
+public class BrowserLocationSwitchPreference extends SwitchPreference {
+
+    View mView;
+    private boolean mSwitchEnabled = true; //internal state tracker
+    private OnPreferenceClickListener onPreferenceClickListener;
+    private OnPreferenceChangeListener oldPreferenceChangeListener;
+
+    public BrowserLocationSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public BrowserLocationSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+    }
+
+    public BrowserLocationSwitchPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public BrowserLocationSwitchPreference(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected void onBindView(View view) {
+        super.onBindView(view);
+        mView = view;
+        if (oldPreferenceChangeListener == null){ //set it just the first time
+            oldPreferenceChangeListener = getOnPreferenceChangeListener();
+        }
+        if (mView != null && mSwitchEnabled) {
+            mView.setAlpha((float) 1.0);
+        }
+        else if (mView != null){
+            mView.setAlpha((float) 0.5); //Gray out the option
+        }
+    }
+
+    @Override
+    public void onClick(){
+        //This toggles teh switch
+        if (PermissionsServiceFactory.isSystemLocationEnabled() && mSwitchEnabled) super.onClick();
+        else {
+            Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
+            getContext().startActivity(intent);
+        };
+    }
+
+    @Override
+    public void setEnabled(boolean enable){
+        // setEnabled will not call super.setEnabled(enable) because
+        // we want to avoid the default behavior entirely.
+        if (!mSwitchEnabled && enable) { //Transition from off to on
+            if(mView != null)
+            mView.setAlpha((float) 1.0);
+            setOnPreferenceClickListener(onPreferenceClickListener);
+            setOnPreferenceChangeListener(oldPreferenceChangeListener);
+        }
+        else if(!enable && mSwitchEnabled) { //Transition from on to off
+            if (mView != null) {
+                mView.setAlpha((float) 0.5); //Gray out the option
+            }
+            onPreferenceClickListener = getOnPreferenceClickListener();
+            if (oldPreferenceChangeListener == null) //to protect against calling !enable onresume()
+                oldPreferenceChangeListener = getOnPreferenceChangeListener();
+
+            // Prevent clicks from registering.
+            setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object newValue) {
+                    return false; // Do Not update
+                }
+            });
+        }
+        mSwitchEnabled = enable;
+    }
+}
diff --git a/src/com/android/browser/preferences/PrivacySecurityPreferencesFragment.java b/src/com/android/browser/preferences/PrivacySecurityPreferencesFragment.java
index 76c5ced..6d22f48 100644
--- a/src/com/android/browser/preferences/PrivacySecurityPreferencesFragment.java
+++ b/src/com/android/browser/preferences/PrivacySecurityPreferencesFragment.java
@@ -16,6 +16,7 @@
 
 package com.android.browser.preferences;
 
+import com.android.browser.BrowserLocationSwitchPreference;
 import com.android.browser.PreferenceKeys;
 import com.android.browser.R;
 import com.android.browser.mdm.DoNotTrackRestriction;
@@ -200,10 +201,13 @@
     public void onResume() {
         super.onResume();
         ActionBar bar = getActivity().getActionBar();
+        BrowserLocationSwitchPreference pref =
+                (BrowserLocationSwitchPreference) findPreference(PreferenceKeys.PREF_ENABLE_GEOLOCATION);
         if (bar != null) {
             bar.setTitle(R.string.pref_privacy_security_title);
             bar.setDisplayHomeAsUpEnabled(false);
             bar.setHomeButtonEnabled(false);
         }
+        if ( pref != null) pref.setEnabled(PermissionsServiceFactory.isSystemLocationEnabled());
     }
 }
diff --git a/src/com/android/browser/preferences/SiteSpecificPreferencesFragment.java b/src/com/android/browser/preferences/SiteSpecificPreferencesFragment.java
index 9d74329..7859422 100644
--- a/src/com/android/browser/preferences/SiteSpecificPreferencesFragment.java
+++ b/src/com/android/browser/preferences/SiteSpecificPreferencesFragment.java
@@ -51,8 +51,11 @@
 import android.widget.Button;
 import android.widget.TextView;
 
+import com.android.browser.BrowserLocationListPreference;
+import com.android.browser.BrowserLocationSwitchPreference;
 import com.android.browser.NavigationBarBase;
 import com.android.browser.PageDialogsHandler;
+import com.android.browser.PreferenceKeys;
 import com.android.browser.R;
 
 import org.codeaurora.swe.PermissionsServiceFactory;
@@ -473,6 +476,9 @@
     @Override
     public void onResume() {
         super.onResume();
+        BrowserLocationListPreference pref =
+                (BrowserLocationListPreference) findPreference("select_geolocation");
+        if ( pref != null) pref.setEnabled(PermissionsServiceFactory.isSystemLocationEnabled());
         if (mBar != null) {
             mOriginalActionBarOptions = mBar.getDisplayOptions();
             mBar.setDisplayHomeAsUpEnabled(false);