From b2a6a5d1454954dfb48e2154c0ecf53f2f030083 Mon Sep 17 00:00:00 2001
From: N-Pex <npexdev@gmail.com>
Date: Fri, 7 May 2021 11:30:24 +0200
Subject: [PATCH] Custom audio player UI

For issue #122.
---
 src/assets/css/chat.scss                      |  48 ++++-
 src/components/messages/AudioPlayer.vue       | 185 ++++++++++++++++++
 .../messages/MessageIncomingAudio.vue         |   7 +-
 .../messages/MessageOutgoingAudio.vue         |   5 +-
 src/plugins/utils.js                          |   7 +
 5 files changed, 241 insertions(+), 11 deletions(-)
 create mode 100644 src/components/messages/AudioPlayer.vue

diff --git a/src/assets/css/chat.scss b/src/assets/css/chat.scss
index 459a51b..156440c 100644
--- a/src/assets/css/chat.scss
+++ b/src/assets/css/chat.scss
@@ -185,10 +185,8 @@ $admin-fg: white;
         background-color: $admin-bg;
     }
     .audio-bubble {
-        overflow: scroll;
-        display: inline-block;
-        width: fit-content;
-        max-width: 70%;
+        width: 70%;
+        height: 50px;
     }
     .bubble.image-bubble {
         padding: 0px;
@@ -252,10 +250,14 @@ $admin-fg: white;
         max-width: 70%;
     }
     .audio-bubble {
-        overflow: scroll;
+        background-color: #e5e5e5;
+        border-radius: 10px 10px 0 10px;
+        padding: 8px;
         display: inline-block;
-        width: fit-content;
+        position: relative;
         max-width: 70%;
+        width: 70%;
+        height: 50px;
     }
     .video2-bubble {
         background-color: #e5e5e5;
@@ -384,6 +386,40 @@ $admin-fg: white;
     user-select: text;
 }
 
+.audio-player {
+    width: 100%;
+    position: absolute;
+    .currentColor {
+        background-color: #000000 !important;
+    }
+    .v-icon {
+        color: black !important;
+    }
+    .from-admin & {
+        color: $admin-fg;
+        .currentColor {
+            background-color: #555555 !important;
+        }
+        .v-icon {
+            color: white !important;
+        }
+    }
+    .play-time {
+        font-family: 'Inter', sans-serif;
+        font-weight: 400;
+        font-size: 13 * $chat-text-size;
+    }
+    .play-progress {
+        padding: 0px 10px;
+        .v-slider__thumb {
+            display: none;
+        }
+        &:hover .v-slider__thumb {
+            display: block;
+        }
+    }
+}
+
 .message-operations-strut {
     position: relative;
     height: 0px;
diff --git a/src/components/messages/AudioPlayer.vue b/src/components/messages/AudioPlayer.vue
new file mode 100644
index 0000000..d309095
--- /dev/null
+++ b/src/components/messages/AudioPlayer.vue
@@ -0,0 +1,185 @@
+<template>
+  <div class="audio-player d-flex flex-row" style="align-items: center">
+    <audio ref="player" :src="src" @durationchange="updateDuration">
+      <slot></slot>
+    </audio>
+    <v-btn v-if="playing" @click.stop="pause" icon
+      ><v-icon size="20">pause</v-icon></v-btn
+    >
+    <v-btn v-else @click.stop="play" icon
+      ><v-icon size="20">play_arrow</v-icon></v-btn
+    >
+    <div class="play-time" style="flex: 1 1 80px">
+      {{ currentTime }} / {{ totalTime }}
+    </div>
+    <v-slider 
+      color="currentColor"
+      track-color="#cccccc"
+      class="play-progress"
+      v-model="playheadPercent"
+      style="flex: 1 1 100%; height: 30px"
+      min="0"
+      max="100"
+    />
+  </div>
+</template>
+
+<script>
+import util from "../../plugins/utils";
+
+export default {
+  props: {
+    src: {
+      type: String,
+      default: function () {
+        return null;
+      },
+    },
+  },
+  data() {
+    return {
+      player: null,
+      duration: 0,
+      playPercent: 0,
+      playTime: 0,
+      playing: false,
+    };
+  },
+  mounted() {
+    this.player = this.$refs.player;
+    this.player.addEventListener("timeupdate", this.updateProgressBar);
+    this.player.addEventListener("play", () => {
+      this.playing = true;
+    });
+    this.player.addEventListener("pause", () => {
+      this.playing = false;
+    });
+    this.player.addEventListener("ended", function () {
+      this.pause();
+      this.playing = false;
+    });
+  },
+  computed: {
+    currentTime() {
+      return util.formatDuration(this.playTime);
+    },
+    totalTime() {
+      return util.formatDuration(this.duration);
+    },
+    playheadPercent: {
+      get: function () {
+        return this.playPercent;
+      },
+      set: function (percent) {
+        if (this.player.src) {
+          this.playPercent = percent;
+          this.player.currentTime = (percent / 100) * this.player.duration;
+        }
+      },
+    },
+  },
+  methods: {
+    play() {
+      if (this.player.src) {
+        if (this.player.paused) {
+          this.player.play();
+        } else if (this.player.ended) {
+          // restart
+          this.player.currentTime = 0;
+          this.player.play();
+        }
+      }
+    },
+    pause() {
+      if (this.player.src) {
+        this.player.pause();
+      }
+    },
+    updateProgressBar() {
+      if (this.player.duration > 0) {
+        this.playPercent = Math.floor(
+          (100 / this.player.duration) * this.player.currentTime
+        );
+      } else {
+        this.playPercent = 0;
+      }
+      this.playTime = 1000 * this.player.currentTime;
+    },
+    updateDuration() {
+      this.duration = 1000 * this.player.duration;
+    },
+  },
+};
+</script>
+
+<style lang="scss">
+@import "@/assets/css/chat.scss";
+</style>
+	
+
+
+function playPauseAudio() {
+  if (player.src) {
+    if (player.paused || player.ended) {
+      // Change the button to a pause button
+      changeButtonType(btnPlayPause, 'pause');
+      player.play();
+    }
+    else {
+      // Change the button to a play button
+      changeButtonType(btnPlayPause, 'play');
+      player.pause();
+    }
+  }
+}
+
+// Stop the current media from playing, and return it to the start position
+function stopAudio() {
+  if (player.src) {
+    player.pause();
+    if (player.currentTime) player.currentTime = 0;
+  }
+}
+
+// Toggles the media player's mute and unmute status
+function muteVolume() {
+  if (player.src) {
+    if (player.muted) {
+      // Change the button to a mute button
+      changeButtonType(btnMute, 'mute');
+      player.muted = false;
+    }
+    else {
+      // Change the button to an unmute button
+      changeButtonType(btnMute, 'unmute');
+      player.muted = true;
+    }
+  }
+}
+
+// Replays the media currently loaded in the player
+function replayAudio() {
+  if (player.src) {
+    resetPlayer();
+    player.play();
+  }
+}
+
+
+// Updates a button's title, innerHTML and CSS class
+function changeButtonType(btn, value) {
+  btn.title     = value;
+  btn.innerHTML = value;
+  btn.className = value;
+}
+
+function resetPlayer() {
+  progressBar.value = 0;
+  //clear the current song
+  player.src = '';
+  // Move the media back to the start
+  player.currentTime = 0;
+  // Set the play/pause button to 'play'
+  changeButtonType(btnPlayPause, 'play');
+}  
+
diff --git a/src/components/messages/MessageIncomingAudio.vue b/src/components/messages/MessageIncomingAudio.vue
index 1c0106b..a37f2b9 100644
--- a/src/components/messages/MessageIncomingAudio.vue
+++ b/src/components/messages/MessageIncomingAudio.vue
@@ -1,7 +1,7 @@
 <template>
   <message-incoming v-bind="{...$props, ...$attrs}">
-    <div class="audio-bubble">
-      <audio controls :src="src">Audio file</audio>
+    <div class="bubble audio-bubble">
+      <audio-player :src="src">Audio file</audio-player>
     </div>
   </message-incoming>
 </template>
@@ -9,11 +9,12 @@
 <script>
 import attachmentMixin from "./attachmentMixin";
 import MessageIncoming from './MessageIncoming.vue';
+import AudioPlayer from './AudioPlayer.vue';
 
 export default {
   extends: MessageIncoming,
   mixins: [attachmentMixin],
-  components: { MessageIncoming }
+  components: { MessageIncoming, AudioPlayer }
 };
 </script>
 
diff --git a/src/components/messages/MessageOutgoingAudio.vue b/src/components/messages/MessageOutgoingAudio.vue
index 87969e4..615b4b6 100644
--- a/src/components/messages/MessageOutgoingAudio.vue
+++ b/src/components/messages/MessageOutgoingAudio.vue
@@ -1,18 +1,19 @@
 <template>
   <message-outgoing v-bind="{ ...$props, ...$attrs }">
     <div class="audio-bubble">
-      <audio controls :src="src">Audio file</audio>
+      <audio-player :src="src">Audio file</audio-player>
     </div>
   </message-outgoing>
 </template>
 
 <script>
 import attachmentMixin from "./attachmentMixin";
+import AudioPlayer from './AudioPlayer.vue';
 import MessageOutgoing from "./MessageOutgoing.vue";
 
 export default {
   extends: MessageOutgoing,
-  components: { MessageOutgoing },
+  components: { MessageOutgoing, AudioPlayer },
   mixins: [attachmentMixin],
 };
 </script>
diff --git a/src/plugins/utils.js b/src/plugins/utils.js
index 91d07f3..0afbd6d 100644
--- a/src/plugins/utils.js
+++ b/src/plugins/utils.js
@@ -565,6 +565,13 @@ class Util {
         return dayjs.duration(ms).format("HH:mm:ss");
     }
 
+    formatDuration(ms) {
+        if (ms >= (60 * 60000)) {
+            return dayjs.duration(ms).format("H:mm:ss");
+        }
+        return dayjs.duration(ms).format("m:ss");
+    }
+
     formatRecordStartTime(timestamp) {
         var then = dayjs(timestamp);
         return then.format('lll');