SwitchVideos.cs
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//-----------------------------------------------------------------------
// <copyright file="SwitchVideos.cs" company="Google Inc.">
// Copyright (C) 2016 Google Inc. All Rights Reserved.
//
// 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.
// </copyright>
//-----------------------------------------------------------------------
namespace GoogleVR.VideoDemo
{
using System;
using UnityEngine;
using UnityEngine.UI;
/// <summary>
/// A top-level container for different videos which can be loaded or switched between.
/// </summary>
public class SwitchVideos : MonoBehaviour
{
/// <summary>The local video sample.</summary>
public GameObject localVideoSample;
/// <summary>The dash video sample.</summary>
public GameObject dashVideoSample;
/// <summary>The pano video sample.</summary>
public GameObject panoVideoSample;
/// <summary>Text indicating a library is missing.</summary>
public Text missingLibText;
private GameObject[] videoSamples;
/// <summary>Called by this instance's Awake step.</summary>
public void Awake()
{
videoSamples = new GameObject[3];
videoSamples[0] = localVideoSample;
videoSamples[1] = dashVideoSample;
videoSamples[2] = panoVideoSample;
string NATIVE_LIBS_MISSING_MESSAGE =
"Video Support libraries not found or could not be loaded!\n" +
"Please add the <b>GVRVideoPlayer.unitypackage</b>\n to this project";
if (missingLibText != null)
{
try
{
IntPtr ptr = GvrVideoPlayerTexture.CreateVideoPlayer();
if (ptr != IntPtr.Zero)
{
GvrVideoPlayerTexture.DestroyVideoPlayer(ptr);
missingLibText.enabled = false;
}
else
{
missingLibText.text = NATIVE_LIBS_MISSING_MESSAGE;
missingLibText.enabled = true;
}
}
catch (Exception e)
{
Debug.LogError(e);
missingLibText.text = NATIVE_LIBS_MISSING_MESSAGE;
missingLibText.enabled = true;
}
}
}
/// <summary>Shows the main menu.</summary>
public void ShowMainMenu()
{
ShowSample(-1);
}
/// <summary>Called on the Flat Local event.</summary>
public void OnFlatLocal()
{
ShowSample(0);
}
/// <summary>Called on the Dash event.</summary>
public void OnDash()
{
ShowSample(1);
}
/// <summary>Called on the 360 Video event.</summary>
public void On360Video()
{
ShowSample(2);
}
private void ShowSample(int index)
{
// If the libs are missing, always show the main menu.
if (missingLibText != null && missingLibText.enabled)
{
index = -1;
}
for (int i = 0; i < videoSamples.Length; i++)
{
if (videoSamples[i] != null)
{
if (i != index)
{
if (videoSamples[i].activeSelf)
{
videoSamples[i].GetComponentInChildren<GvrVideoPlayerTexture>()
.CleanupVideo();
}
}
else
{
videoSamples[i].GetComponentInChildren<GvrVideoPlayerTexture>()
.ReInitializeVideo();
}
videoSamples[i].SetActive(i == index);
}
}
GetComponent<Canvas>().enabled = index == -1;
}
}
}