client/components/loading-message.vue

<script>
// Copyright (c) 2017-2024 Uber Technologies Inc.
//
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

export default {
  name: 'loading-message',
  props: ['loading', 'delay'],
  data() {
    return {
      showMessage: false,
      timer: undefined,
    };
  },
  methods: {
    clearState() {
      this.stopTimer();
      this.showMessage = false;
    },
    startTimer() {
      this.clearState();
      this.timer = setTimeout(() => {
        this.showMessage = true;
      }, this.delay);
    },
    stopTimer() {
      if (this.timer) {
        clearTimeout(this.timer);
      }
    },
  },
  watch: {
    loading(loading) {
      if (!loading) {
        this.clearState();
      } else {
        this.startTimer();
      }
    },
  },
};
</script>

<template>
  <div class="loading-message" v-if="showMessage">
    <slot></slot>
  </div>
</template>

<style lang="stylus">
@keyframes loadingMessageFadeIn {
  0% {
    opacity:0;
  }
  100% {
    opacity:1;
  }
}

.loading-message {
  animation: loadingMessageFadeIn ease 1s;

  text-align: center;
  line-height: 24px;
}
</style>