First draft of wifi display settings UI.

All of the functionality is in place but the UI is
not fully polished yet.

Bug: 7178216
Change-Id: Id76843bff05cc71e5c02a31bc97c7070d58fff10

1 files changed, 405 insertions, 0 deletions

diff --git a/src/com/android/settings/wfd/WifiDisplaySettings.java b/src/com/android/settings/wfd/WifiDisplaySettings.java
new file mode 100755
index 0000000..f1d0e70
--- /dev/null
+++ b/src/com/android/settings/wfd/WifiDisplaySettings.java
@@ -0,0 +1,405 @@
+/*
+ * Copyright (C) 2012 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.wfd;
+
+import android.app.ActionBar;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.database.ContentObserver;
+import android.hardware.display.DisplayManager;
+import android.hardware.display.WifiDisplay;
+import android.hardware.display.WifiDisplayStatus;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.preference.Preference;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceCategory;
+import android.preference.PreferenceGroup;
+import android.preference.PreferenceScreen;
+import android.provider.Settings;
+import android.text.Html;
+import android.util.TypedValue;
+import android.view.Gravity;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.CompoundButton;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.Switch;
+import android.widget.TextView;
+
+import com.android.settings.ProgressCategory;
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+
+/**
+ * The Settings screen for WifiDisplay configuration and connection management.
+ */
+public final class WifiDisplaySettings extends SettingsPreferenceFragment {
+    private static final String TAG = "WifiDisplaySettings";
+
+    private static final int MENU_ID_SCAN = Menu.FIRST;
+
+    private DisplayManager mDisplayManager;
+
+    private boolean mWifiDisplayOnSetting;
+    private WifiDisplayStatus mWifiDisplayStatus;
+
+    private PreferenceGroup mPairedDevicesCategory;
+    private ProgressCategory mAvailableDevicesCategory;
+
+    private TextView mEmptyView;
+
+    private Switch mActionBarSwitch;
+
+    public WifiDisplaySettings() {
+    }
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+
+        mDisplayManager = (DisplayManager)getActivity().getSystemService(Context.DISPLAY_SERVICE);
+
+        addPreferencesFromResource(R.xml.wifi_display_settings);
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        Activity activity = getActivity();
+        mActionBarSwitch = new Switch(activity);
+        if (activity instanceof PreferenceActivity) {
+            PreferenceActivity preferenceActivity = (PreferenceActivity) activity;
+            if (preferenceActivity.onIsHidingHeaders() || !preferenceActivity.onIsMultiPane()) {
+                final int padding = activity.getResources().getDimensionPixelSize(
+                        R.dimen.action_bar_switch_padding);
+                mActionBarSwitch.setPadding(0, 0, padding, 0);
+                activity.getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM,
+                        ActionBar.DISPLAY_SHOW_CUSTOM);
+                activity.getActionBar().setCustomView(mActionBarSwitch,
+                        new ActionBar.LayoutParams(
+                                ActionBar.LayoutParams.WRAP_CONTENT,
+                                ActionBar.LayoutParams.WRAP_CONTENT,
+                                Gravity.CENTER_VERTICAL | Gravity.END));
+            }
+        }
+
+        mActionBarSwitch.setOnCheckedChangeListener(mSwitchOnCheckedChangedListener);
+
+        mEmptyView = (TextView) getView().findViewById(android.R.id.empty);
+        getListView().setEmptyView(mEmptyView);
+
+        update();
+
+        if (mWifiDisplayStatus.getFeatureState() == WifiDisplayStatus.FEATURE_STATE_UNAVAILABLE) {
+            activity.finish();
+        }
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        Context context = getActivity();
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(DisplayManager.ACTION_WIFI_DISPLAY_STATUS_CHANGED);
+        context.registerReceiver(mReceiver, filter);
+
+        getContentResolver().registerContentObserver(Settings.Secure.getUriFor(
+                Settings.Global.WIFI_DISPLAY_ON), false, mSettingsObserver);
+
+        mDisplayManager.scanWifiDisplays();
+
+        update();
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        Context context = getActivity();
+        context.unregisterReceiver(mReceiver);
+
+        getContentResolver().unregisterContentObserver(mSettingsObserver);
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        MenuItem item = menu.add(Menu.NONE, MENU_ID_SCAN, 0,
+                mWifiDisplayStatus.getScanState() == WifiDisplayStatus.SCAN_STATE_SCANNING ?
+                        R.string.wifi_display_searching_for_devices :
+                                R.string.wifi_display_search_for_devices);
+        item.setEnabled(mWifiDisplayStatus.getFeatureState() == WifiDisplayStatus.FEATURE_STATE_ON
+                && mWifiDisplayStatus.getScanState() == WifiDisplayStatus.SCAN_STATE_NOT_SCANNING);
+        item.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+        super.onCreateOptionsMenu(menu, inflater);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case MENU_ID_SCAN:
+                if (mWifiDisplayStatus.getFeatureState() == WifiDisplayStatus.FEATURE_STATE_ON) {
+                    mDisplayManager.scanWifiDisplays();
+                }
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    @Override
+    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,
+            Preference preference) {
+        if (preference instanceof WifiDisplayPreference) {
+            WifiDisplayPreference p = (WifiDisplayPreference)preference;
+            WifiDisplay display = p.getDisplay();
+
+            if (display.equals(mWifiDisplayStatus.getActiveDisplay())) {
+                showDisconnectDialog(display);
+            } else {
+                mDisplayManager.connectWifiDisplay(display.getDeviceAddress());
+            }
+        }
+
+        return super.onPreferenceTreeClick(preferenceScreen, preference);
+    }
+
+    private void update() {
+        mWifiDisplayOnSetting = Settings.Global.getInt(getContentResolver(),
+                Settings.Global.WIFI_DISPLAY_ON, 0) != 0;
+        mWifiDisplayStatus = mDisplayManager.getWifiDisplayStatus();
+
+        applyState();
+    }
+
+    private void applyState() {
+        final int featureState = mWifiDisplayStatus.getFeatureState();
+        mActionBarSwitch.setEnabled(featureState != WifiDisplayStatus.FEATURE_STATE_DISABLED);
+        mActionBarSwitch.setChecked(mWifiDisplayOnSetting);
+
+        final PreferenceScreen preferenceScreen = getPreferenceScreen();
+        preferenceScreen.removeAll();
+
+        if (featureState == WifiDisplayStatus.FEATURE_STATE_ON) {
+            final WifiDisplay[] pairedDisplays = mWifiDisplayStatus.getRememberedDisplays();
+            final WifiDisplay[] availableDisplays = mWifiDisplayStatus.getAvailableDisplays();
+
+            if (mPairedDevicesCategory == null) {
+                mPairedDevicesCategory = new PreferenceCategory(getActivity());
+                mPairedDevicesCategory.setTitle(R.string.wifi_display_paired_devices);
+            } else {
+                mPairedDevicesCategory.removeAll();
+            }
+            preferenceScreen.addPreference(mPairedDevicesCategory);
+
+            for (WifiDisplay d : pairedDisplays) {
+                mPairedDevicesCategory.addPreference(createWifiDisplayPreference(d, true));
+            }
+            if (mPairedDevicesCategory.getPreferenceCount() == 0) {
+                preferenceScreen.removePreference(mPairedDevicesCategory);
+            }
+
+            if (mAvailableDevicesCategory == null) {
+                mAvailableDevicesCategory = new ProgressCategory(getActivity(), null,
+                        R.string.wifi_display_no_devices_found);
+                mAvailableDevicesCategory.setTitle(R.string.wifi_display_available_devices);
+            } else {
+                mAvailableDevicesCategory.removeAll();
+            }
+            preferenceScreen.addPreference(mAvailableDevicesCategory);
+
+            for (WifiDisplay d : availableDisplays) {
+                if (!contains(pairedDisplays, d.getDeviceAddress())) {
+                    mAvailableDevicesCategory.addPreference(createWifiDisplayPreference(d, false));
+                }
+            }
+            if (mWifiDisplayStatus.getScanState() == WifiDisplayStatus.SCAN_STATE_SCANNING) {
+                mAvailableDevicesCategory.setProgress(true);
+            } else {
+                mAvailableDevicesCategory.setProgress(false);
+            }
+        } else {
+            mEmptyView.setText(featureState == WifiDisplayStatus.FEATURE_STATE_OFF ?
+                    R.string.wifi_display_settings_empty_list_wifi_display_off :
+                            R.string.wifi_display_settings_empty_list_wifi_display_disabled);
+        }
+
+        getActivity().invalidateOptionsMenu();
+    }
+
+    private Preference createWifiDisplayPreference(final WifiDisplay d, boolean paired) {
+        WifiDisplayPreference p = new WifiDisplayPreference(getActivity(), d);
+        if (d.equals(mWifiDisplayStatus.getActiveDisplay())) {
+            switch (mWifiDisplayStatus.getActiveDisplayState()) {
+                case WifiDisplayStatus.DISPLAY_STATE_CONNECTED:
+                    p.setSummary(R.string.wifi_display_status_connected);
+                    break;
+                case WifiDisplayStatus.DISPLAY_STATE_CONNECTING:
+                    p.setSummary(R.string.wifi_display_status_connecting);
+                    break;
+            }
+        } else if (paired && contains(mWifiDisplayStatus.getAvailableDisplays(),
+                d.getDeviceAddress())) {
+            p.setSummary(R.string.wifi_display_status_available);
+        }
+        if (paired) {
+            p.setWidgetLayoutResource(R.layout.wifi_display_preference);
+        }
+        return p;
+    }
+
+    private void showDisconnectDialog(final WifiDisplay display) {
+        DialogInterface.OnClickListener ok = new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                if (display.equals(mWifiDisplayStatus.getActiveDisplay())) {
+                    mDisplayManager.disconnectWifiDisplay();
+                }
+            }
+        };
+
+        AlertDialog dialog = new AlertDialog.Builder(getActivity())
+                .setCancelable(true)
+                .setTitle(R.string.wifi_display_disconnect_title)
+                .setMessage(Html.fromHtml(getResources().getString(
+                        R.string.wifi_display_disconnect_text, display.getFriendlyDisplayName())))
+                .setPositiveButton(android.R.string.ok, ok)
+                .setNegativeButton(android.R.string.cancel, null)
+                .create();
+        dialog.show();
+    }
+
+    private void showOptionsDialog(final WifiDisplay display) {
+        View view = getActivity().getLayoutInflater().inflate(R.layout.wifi_display_options, null);
+        final EditText nameEditText = (EditText)view.findViewById(R.id.name);
+        nameEditText.setText(display.getFriendlyDisplayName());
+
+        DialogInterface.OnClickListener done = new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                String name = nameEditText.getText().toString().trim();
+                if (name.isEmpty() || name.equals(display.getDeviceName())) {
+                    name = null;
+                }
+                mDisplayManager.renameWifiDisplay(display.getDeviceAddress(), name);
+            }
+        };
+        DialogInterface.OnClickListener forget = new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                mDisplayManager.forgetWifiDisplay(display.getDeviceAddress());
+            }
+        };
+
+        AlertDialog dialog = new AlertDialog.Builder(getActivity())
+                .setCancelable(true)
+                .setTitle(R.string.wifi_display_options_title)
+                .setView(view)
+                .setPositiveButton(R.string.wifi_display_options_done, done)
+                .setNegativeButton(R.string.wifi_display_options_forget, forget)
+                .create();
+        dialog.show();
+    }
+
+    private static boolean contains(WifiDisplay[] displays, String address) {
+        for (WifiDisplay d : displays) {
+            if (d.getDeviceAddress().equals(address)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private final CompoundButton.OnCheckedChangeListener mSwitchOnCheckedChangedListener =
+            new CompoundButton.OnCheckedChangeListener() {
+        @Override
+        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+            mWifiDisplayOnSetting = isChecked;
+            Settings.Global.putInt(getContentResolver(),
+                    Settings.Global.WIFI_DISPLAY_ON, isChecked ? 1 : 0);
+        }
+    };
+
+    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+            if (action.equals(DisplayManager.ACTION_WIFI_DISPLAY_STATUS_CHANGED)) {
+                WifiDisplayStatus status = (WifiDisplayStatus)intent.getParcelableExtra(
+                        DisplayManager.EXTRA_WIFI_DISPLAY_STATUS);
+                mWifiDisplayStatus = status;
+                applyState();
+            }
+        }
+    };
+
+    private final ContentObserver mSettingsObserver = new ContentObserver(new Handler()) {
+        @Override
+        public void onChange(boolean selfChange, Uri uri) {
+            update();
+        }
+    };
+
+    private final class WifiDisplayPreference extends Preference
+            implements View.OnClickListener {
+        private final WifiDisplay mDisplay;
+
+        public WifiDisplayPreference(Context context, WifiDisplay display) {
+            super(context);
+
+            mDisplay = display;
+            setTitle(display.getFriendlyDisplayName());
+        }
+
+        public WifiDisplay getDisplay() {
+            return mDisplay;
+        }
+
+        @Override
+        protected void onBindView(View view) {
+            super.onBindView(view);
+
+            ImageView deviceDetails = (ImageView) view.findViewById(R.id.deviceDetails);
+            if (deviceDetails != null) {
+                deviceDetails.setOnClickListener(this);
+
+                if (!isEnabled()) {
+                    TypedValue value = new TypedValue();
+                    getContext().getTheme().resolveAttribute(android.R.attr.disabledAlpha,
+                            value, true);
+                    deviceDetails.setImageAlpha((int)(value.getFloat() * 255));
+                }
+            }
+        }
+
+        @Override
+        public void onClick(View v) {
+            showOptionsDialog(mDisplay);
+        }
+    }
+}