packages/SystemUI/src/com/android/systemui/qs/tiles/CastTile.java

/*
 * Copyright (C) 2014 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.systemui.qs.tiles;

import android.app.Dialog;
import android.content.Intent;
import android.media.MediaRouter;
import android.provider.Settings;
import android.view.View;
import android.view.WindowManager;

import com.android.internal.app.MediaRouteDialogPresenter;
import com.android.systemui.R;
import com.android.systemui.qs.QSTile;
import com.android.systemui.statusbar.policy.CastController;

/** Quick settings tile: Cast **/
public class CastTile extends QSTile<QSTile.BooleanState> {
    private static final Intent WIFI_DISPLAY_SETTINGS =
            new Intent(Settings.ACTION_WIFI_DISPLAY_SETTINGS);

    private final CastController mController;

    public CastTile(Host host) {
        super(host);
        mController = host.getCastController();
    }

    @Override
    protected BooleanState newTileState() {
        return new BooleanState();
    }

    @Override
    public void setListening(boolean listening) {
        if (mController == null) return;
        if (listening) {
            mController.addCallback(mCallback);
        } else {
            mController.removeCallback(mCallback);
        }
        mController.setDiscovering(listening);
    }

    @Override
    protected void handleUserSwitch(int newUserId) {
        super.handleUserSwitch(newUserId);
        if (mController == null) return;
        mController.setCurrentUserId(newUserId);
    }

    @Override
    protected void handleClick() {
        postAfterFeedback(new Runnable() {
            public void run() {
                mHost.collapsePanels();
                mUiHandler.post(mShowDialog);
            }
        });
    }

    @Override
    protected void handleUpdateState(BooleanState state, Object arg) {
        state.visible = true;
        state.label = mContext
                .getString(R.string.quick_settings_remote_display_no_connection_label);
        if (arg instanceof CallbackInfo) {
            final CallbackInfo cb = (CallbackInfo) arg;
            if (cb.connectedRouteName != null) {
                state.value = !cb.connecting;
            }
        }
        state.iconId = state.value ? R.drawable.ic_qs_cast_on : R.drawable.ic_qs_cast_off;
    }

    private static class CallbackInfo {
        boolean enabled;
        boolean connecting;
        String connectedRouteName;
    }

    private final CastController.Callback mCallback = new CastController.Callback() {
        @Override
        public void onStateChanged(boolean enabled, boolean connecting,
                String connectedRouteName) {
            final CallbackInfo info = new CallbackInfo();  // TODO pool
            info.enabled = enabled;
            info.connecting = connecting;
            info.connectedRouteName = connectedRouteName;
            refreshState(info);
        }
    };

    private final Runnable mShowDialog = new Runnable() {
        private Dialog mDialog;
        @Override
        public void run() {
            mDialog = MediaRouteDialogPresenter.createDialog(mContext,
                    MediaRouter.ROUTE_TYPE_REMOTE_DISPLAY,
                    new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mDialog.dismiss();
                    mHost.startSettingsActivity(WIFI_DISPLAY_SETTINGS);
                }
            });
            mDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_VOLUME_OVERLAY);
            mDialog.show();
        }
    };
}