1 | <template>
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2 | <div class="app-bar theme-primary-l1">
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3 | <div class="app-bar-content">
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4 | <span class="heading1">{{ translations.get("Title") }}</span>
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5 |
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6 | <a class="btn-primary theme-accent" href="https://koreromaori.io" target="_blank">
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7 | <span class="material-icons mdi-m">open_in_new</span>
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8 | <u>koreromaori.io</u>
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9 | </a>
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10 |
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11 | <toggle-button class="theme-accent" v-model="showInfo" :reverseState="true">
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12 | <span class="material-icons mdi-l">info</span>
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13 | </toggle-button>
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14 | </div>
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15 |
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16 | <div v-if="showInfo" class="paper">
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17 | A tool to transcribe audio recordings of spoken MÄori. Basic support for editing the transcriptions is provided,
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18 | and they can be downloaded in multiple formats.
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19 | <br />
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20 | The actual transcriptions are produced with gratitude by using <a href="https://koreromaori.io">koreromaori.io's</a> service.
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21 | </div>
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22 | </div>
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23 |
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24 | <div class="paper content">
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25 | <AudioUpload />
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26 | </div>
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27 |
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28 | <ul id="transcription-list" class="list-view content">
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29 | <transition-group name="transcription-list">
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30 | <li class="list-item transcription-list-item" v-for="[id, transcription] in transcriptions" :key="id">
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31 | <TranscriptionItem :transcription="transcription" />
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32 | </li>
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33 | </transition-group>
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34 | </ul>
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35 | </template>
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36 |
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37 | <style lang="scss">
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38 | #transcription-list {
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39 | margin-bottom: 1em;
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40 | }
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41 |
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42 | .app-bar {
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43 | display: flex;
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44 | flex-direction: column;
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45 | gap: 1em;
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46 |
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47 | background-color: var(--bg-color);
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48 | color: var(--fg-color);
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49 | box-shadow: 0px 0px 4px 3px #6d6d6d;
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50 |
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51 | padding: 1em;
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52 | margin-bottom: 1em;
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53 | }
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54 |
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55 | .app-bar-content {
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56 | display: flex;
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57 | align-items: center;
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58 | gap: 1em;
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59 |
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60 | width: 100%;
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61 |
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62 | & :first-child {
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63 | flex-grow: 1;
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64 | }
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65 | }
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66 |
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67 | .content {
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68 | margin: 1em;
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69 | }
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70 |
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71 | .transcription-list-item {
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72 | transition: all 0.8s ease;
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73 | margin-bottom: 1em;
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74 |
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75 | &:last-child {
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76 | margin-bottom: 0;
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77 | }
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78 | }
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79 |
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80 | .transcription-list-leave-to {
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81 | opacity: 0;
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82 | transform: translateX(30%);
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83 | }
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84 |
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85 | .transcription-list-leave-active {
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86 | position: absolute;
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87 | }
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88 | </style>
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89 |
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90 | <script>
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91 | import { mapState } from "vuex";
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92 | import AudioUpload from "./components/AudioUpload.vue"
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93 | import ToggleButton from "./components/ToggleButton.vue";
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94 | import TranscriptionItem from "./components/TranscriptionItem.vue"
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95 |
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96 | export default {
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97 | name: "App",
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98 | components: {
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99 | AudioUpload,
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100 | TranscriptionItem,
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101 | ToggleButton
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102 | },
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103 | data() {
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104 | return {
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105 | /** @type {{id: String, url: String} | null} */
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106 | currentlyLoadedAudio: null,
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107 | player: new Audio(),
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108 | showInfo: false
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109 | }
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110 | },
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111 | computed: mapState({
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112 | translations: state => state.translations,
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113 | transcriptions: state => state.rawTranscriptions,
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114 | playbackState: state => state.playbackState,
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115 | shouldPlayAudio: state => state.playbackState.isPlaying
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116 | }),
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117 | watch: {
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118 | async playbackState(newValue) {
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119 | if (!newValue.isPlaying) {
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120 | return;
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121 | }
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122 |
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123 | const transcription = this.transcriptions.get(newValue.id);
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124 | loadTranscriptionAudio(this.player, transcription, this.currentlyLoadedAudio);
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125 |
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126 | let playbackTime = 0;
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127 | if (newValue.currentTime > 0) {
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128 | playbackTime = newValue.currentTime;
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129 | }
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130 |
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131 | this.player.currentTime = playbackTime;
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132 | await this.player.play();
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133 |
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134 | this.playbackState.length = this.player.duration;
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135 | }//,
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136 | // shouldPlayAudio(newValue) {
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137 | // if (newValue && this.$refs.audioPlayer.paused) {
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138 | // this.$refs.audioPlayer.play();
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139 | // }
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140 | // else if (!newValue && !this.$refs.audioPlayer.paused) {
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141 | // this.$refs.audioPlayer.pause();
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142 | // }
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143 | // }
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144 | },
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145 | mounted() {
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146 | pollAudioTime(this.player, this.$store);
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147 | }
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148 | }
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149 |
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150 | // Adapted from https://davidwalsh.name/javascript-polling
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151 | function pollAudioTime(audioElement, store) {
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152 | var lastTime = 0;
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153 | (function p() {
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154 | if (audioElement.currentTime !== lastTime) {
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155 | lastTime = audioElement.currentTime;
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156 | store.commit("setCurrentPlaybackTime", lastTime);
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157 | store.commit("setCurrentlyPlaying", true);
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158 | }
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159 | else {
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160 | store.commit("setCurrentlyPlaying", false);
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161 | }
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162 |
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163 | setTimeout(p, 33); // Slightly more than 30hz
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164 | })();
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165 | }
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166 |
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167 | /**
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168 | * Loads an audio file.
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169 | * @param {Audio} player The audio player.
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170 | * @param {TranscriptionViewModel} transcription The name of the requested audio file.
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171 | * @param {{id: String, url: String} | null} current The currently loaded audio.
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172 | * @returns {{id: String, url: String}} If a new audio file was loaded, a new audio tracking object, else the current one.
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173 | */
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174 | function loadTranscriptionAudio(player, transcription, current) {
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175 | if (current == null || current.id !== transcription.id) {
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176 | // TODO: Need to profile on some larger tracks; this may not be worth it? Better to cache a URL object instead?
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177 | if (current !== null) {
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178 | URL.revokeObjectURL(current.url);
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179 | }
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180 |
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181 | const urlObject = URL.createObjectURL(transcription.file);
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182 | player.src = urlObject;
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183 | player.load();
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184 |
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185 | return { id: transcription.id, url: urlObject };
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186 | }
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187 |
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188 | return current;
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189 | }
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190 | </script>
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