How to customize the video player in Angular-JS Tutorial-php.cn

How to customize Video operations? Custom video player? The following article will introduce to you how to customize Video operations in Angular. I hope it will be helpful to you!

How to customize the video player in Angular

The previous article was Angular project implementation of permission control. Recently, I saw others using vue on the Internet to customize video. In addition, the related requirements of angular customization video were implemented not long ago, so I will record it as a communication and reflection. [Related tutorial recommendations: "angular tutorial"]

The functions implemented are as follows:

Play/stop
Fast rewind/fast forward / Double speed
Sound on/Sound off
Enter full screen/Exit full screen
Enter picture-in-picture/Exit picture-in-picture [Android tablets are not supported and are not recommended]
Elapsed time/total duration
Playback progress bar function: supports click and drag progress
Sound progress bar function: supports click and drag progress

As shown in the picture:

How to customize the video player in Angular

Let’s implement it one by one:

The focus here is not on the layout, let’s simply define it:

<!-- app.component.html -->

<div class="video-page">
  <div class="video-tools">
    <button nz-button nzType="primary" (click)="play(&#39;btn&#39;)" style="margin-right: 12px;">播放 ✅</button>
    <button nz-button nzType="primary" (click)="pause(&#39;btn&#39;)">暂停 ✅</button>
    <ng-container>
      <button nz-button nz-dropdown [nzDropdownMenu]="menuForward" nzPlacement="bottomCenter" style="margin: 0 12px;">快进 ✅</button>
        <nz-dropdown-menu #menuForward="nzDropdownMenu">
          <ul nz-menu>
            <li nz-menu-item (click)="forwardSecond(10)">快进 10 s</li>
            <li nz-menu-item (click)="forwardSecond(20)">快进 20 s</li>
          </ul>
        </nz-dropdown-menu>
    </ng-container>
    <ng-container>
      <button nz-button nz-dropdown [nzDropdownMenu]="menuBack" nzPlacement="bottomCenter">快退 ✅</button>
        <nz-dropdown-menu #menuBack="nzDropdownMenu">
          <ul nz-menu>
            <li nz-menu-item (click)="retreatSecond(10)">快退 10 s</li>
            <li nz-menu-item (click)="retreatSecond(20)">快退 20 s</li>
          </ul>
        </nz-dropdown-menu>
    </ng-container>
    <ng-container>
      <button nz-button nz-dropdown [nzDropdownMenu]="speedUp" nzPlacement="bottomCenter" style="margin: 0 12px;">倍速 ✅</button>
        <nz-dropdown-menu #speedUp="nzDropdownMenu">
          <ul nz-menu>
            <li nz-menu-item (click)="speedUpVideo(1)">正常</li>
            <li nz-menu-item (click)="speedUpVideo(2)">2 倍</li>
            <li nz-menu-item (click)="speedUpVideo(4)">4 倍</li>
          </ul>
        </nz-dropdown-menu>
    </ng-container>
    <button nz-button nzType="primary" (click)="openOrCloseVoice()">声音开 / 声音关 ✅</button>
    <button nz-button nzType="primary" style="margin: 0 12px;" (click)="toFullScreen()">全屏 ✅</button>
    <br />
    <button nz-button nzType="primary" style="margin-top: 12px;" (click)="entryInPicture()">进入画中画 ⚠️ 安卓平板不支持</button>
    <button nz-button nzType="primary" style="margin: 12px 12px 0 12px;" (click)="exitInPicture()">退出画中画 ⚠️ 安卓平板不支持</button>
    <br />
    <div style="display: flex; justify-content: flex-start; align-items: center; margin: 12px 0;">
      经过时长 / 总时长 ： ✅ {{ currentTime }}  / {{ totalTime }}
    </div>
    <!-- 进度条 -->
    <div style="display: flex; justify-content: flex-start; align-items: center; margin: 12px 0;">
      进度条：✅
      <div
        class="custom-video_control-bg"
        (mousedown)="handleProgressDown($event)"
        (mousemove)="handleProgressMove($event)"
        (mouseup)="handleProgressUp($event)"
      >
        <div
          class="custom-video_control-bg-outside"
          id="custom-video_control-bg-outside"
        >
          <span
            class="custom-video_control-bg-inside"
            id="custom-video_control-bg-inside"
          ></span>
          <span
            class="custom-video_control-bg-inside-point"
            id="custom-video_control-bg-inside-point"
          ></span>
        </div>
      </div>
    </div>
    <div style="display: flex; justify-content: flex-start; align-items: center; margin: 12px 0;">
      声音条：✅
      <div class="custom-video_control-voice">
        <span class="custom-video_control-voice-play">
          <i nz-icon nzType="sound" nzTheme="outline"></i>
        </span>
        <div
          class="custom-video_control-voice-bg"
          id="custom-video_control-voice-bg"
          (mousedown)="handleVolProgressDown($event)"
          (mousemove)="handleVolProgressMove($event)"
          (mouseup)="handleVolProgressUp($event)"
        >
          <div 
            class="custom-video_control-voice-bg-outside"
            id="custom-video_control-voice-bg-outside"
          >
            <span 
              class="custom-video_control-voice-bg-inside"
              id="custom-video_control-voice-bg-inside"
            ></span>
            <span 
              class="custom-video_control-voice-bg-point"
              id="custom-video_control-voice-bg-point"
            ></span>
          </div>
        </div>
      </div>
    </div>
  </div>
  <div class="video-content">
    <video id="video" class="video" style="width: 100%" poster="assets/poster.png">
      <source type="video/mp4" src="assets/demo.mp4">
      Sorry, your browser doesn&#39;t support.
    </video>
  </div>
</div>

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angular ant design is used here. I wrote a related article before. Readers who are not familiar with it can go to Angular combined with NG-ZORRO rapid development

Play/Stop

Here directly call the video object methods play() and pause():

// app.component.ts

// 播放按钮事件
play(flag: string | undefined) {
  if(flag) this.videoState.playState = true
  this.videoState.play = true
  this.video.play()
}
// 暂停按钮事件
pause(flag: string | undefined): void {
  if(flag) this.videoState.playState = false
  this.video.pause()
  this.videoState.play = false
}

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The customized play and pause methods here add a flag, which is helpful for controlling the progress bar to be discussed below. The above code can be more concise , readers can write it down in abbreviation.

Fast rewind/fast forward/double speed

HereFast rewind, fast forward and double speedset different options and pass them through parameters:

// app.component.ts

// 快进指定的时间
forwardSecond(second: number): void {
  this.video.currentTime += second; // 定位到当前的播放时间 currentTime
}

// 后退指定的时间
retreatSecond(second: number): void {
  this.video.currentTime -= second
}

// 倍速
speedUpVideo(multiple: number): void {
  this.video.playbackRate = multiple; // 设定当前的倍速 playbackRate
}

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How to customize the video player in Angular

Sound on/Sound off

To switch the sound on and off, use the muted attribute of video:

// app.component.ts

// 开或关声音
openOrCloseVoice(): void {
  this.video.muted = !this.video.muted;
}

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Enter full screen/exit full screen

The operation of full screen is also very simple. Use webkitRequestFullScreen

// app.component.ts

// 全屏操作
toFullScreen(): void {
  this.video.webkitRequestFullScreen()
}

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After full screen, press esc Exit full screen

Enter picture-in-picture/Exit picture-in-picture

Picture-in-picture is equivalent to pop-up window shrink video~

// app.component.ts

// 进入画中画
entryInPicture(): void {
  this.video.requestPictureInPicture()
  this.video.style.display = "none"
}

// 退出画中画
exitInPicture(): void {
  if(this.document.pictureInPictureElement) {
    this.document.exitPictureInPicture()
    this.video.style.display = "block"
  }
}

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Settingsvideo## The style of # is to not look obtrusive...

Elapsed duration/total duration

Record the total duration of the video and the current playback duration of the video. When we come to the component, we get the meta-information of the video and get the total duration; during the video playback process, we update the current duration.

// app.component.ts

// 初始化 video 的相关的事件
initVideoData(): void {
  // 获取视频的总时长
  this.video.addEventListener(&#39;loadedmetadata&#39;, () => {
    this.totalTime = this.formatTime(this.video.duration)
  })
  // 监听时间发生更改
  this.video.addEventListener(&#39;timeupdate&#39;, () => {
    this.currentTime = this.formatTime(this.video.currentTime) // 当前播放的时间
  })
}

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formatTime is the formatting function

Playback progress bar function

Monitor the mouse

click, move, release Events, divide the video play time and total events to calculate the percentage.

// app.component.ts

// 进度条鼠标按下
handleProgressDown(event: any): void {
  this.videoState.downState = true
  this.pause(undefined);
  this.videoState.distance = event.clientX + document.documentElement.scrollLeft - this.videoState.leftInit;
}
// 进度条 滚动条移动
handleProgressMove(event: any): void {
  if(!this.videoState.downState) return
  let distanceX = (event.clientX + document.documentElement.scrollLeft) - this.videoState.leftInit
  if(distanceX > this.processWidth) { // 容错处理
    distanceX = this.processWidth;
  }
  if(distanceX < 0) { // 容错处理
    distanceX = 0
  }
  this.videoState.distance = distanceX
  this.video.currentTime = this.videoState.distance / this.processWidth * this.video.duration
}
// 进度条 鼠标抬起
handleProgressUp(event: any): void {
  this.videoState.downState = false
  // 视频播放
  this.video.currentTime = this.videoState.distance / this.processWidth * this.video.duration
  this.currentTime = this.formatTime(this.video.currentTime)
  if(this.videoState.playState) {
    this.play(undefined)
  }
}

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Here you need to calculate the position of the progress bar to get the percentage of clicks on the progress bar, and then update the current playback time of the video. Of course, we must also have fault tolerance processing. For example, when the progress bar is negative, the current playback time is 0.

Sound progress bar

We have implemented the operation of the playback progress bar, and it is easy to get started with the implementation of the sound progress bar. The sound progress bar also monitors mouse

clicks, moves, and releases. However, this time we are dealing with the height of the known sound div.

// app.component.ts

// 声音条 鼠标按下
handleVolProgressDown(event: any) {
  this.voiceState.topInit = this.getOffset(this.voiceProOut, undefined).top
  this.volProcessHeight = this.voiceProOut.clientHeight
  this.voiceState.downState = true //按下鼠标标志
  this.voiceState.distance = this.volProcessHeight - (event.clientY + document.documentElement.scrollTop - this.voiceState.topInit) 
}
// 声音 滚动条移动
handleVolProgressMove(event: any) {
  if(!this.voiceState.downState) return
    let disY = this.voiceState.topInit + this.volProcessHeight - (event.clientY + document.documentElement.scrollTop)
    if(disY > this.volProcessHeight - 2) { // 容错处理
      disY = this.volProcessHeight - 2
    }
    if(disY < 0) { // 容错处理
      disY = 0
    }
    this.voiceState.distance = disY
    this.video.volume = this.voiceState.distance / this.volProcessHeight
    this.videoOption.volume = Math.round(this.video.volume * 100)
}
// 声音 鼠标抬起
handleVolProgressUp(event: any) {
  this.voiceState.downState = false //按下鼠标标志
  let voiceRate =  this.voiceState.distance / this.volProcessHeight
  if(voiceRate > 1) {
    voiceRate = 1
  }
  if(voiceRate < 0) {
    voiceRate = 0
  }
  this.video.volume = voiceRate
  this.videoOption.volume = Math.round(this.video.volume * 100); // 赋值给视频声音
}

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Picture:

How to customize the video player in Angular

Effect demonstration

After completing the above content, we use a

gif picture To show the effect:

How to customize the video player in Angular

Full screen, sound and picture-in-picture are difficult to capture, and
Gif cannot be reflected on

For detailed code, please go to video-ng to get it.

【End】

For more programming-related knowledge, please visit: Introduction to Programming! !

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