quasar/docs/src/examples/QFile/WithProgress.vue at dev · hipertracker/quasar · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
<template>
  <div class="q-pa-md column items-start q-gutter-y-md">
    <q-file
      :model-value="files"
      @update:model-value="updateFiles"
      label="Pick files"
      outlined
      multiple
      :clearable="!isUploading"
      style="max-width: 400px"
    >
      <template v-slot:file="{ index, file }">
        <q-chip
          class="full-width q-my-xs"
          :removable="isUploading && uploadProgress[index].percent < 1"
          square
          @remove="cancelFile(index)"
        >
          <q-linear-progress
            class="absolute-full full-height"
            :value="uploadProgress[index].percent"
            :color="uploadProgress[index].color"
            track-color="grey-2"
          />

          <q-avatar>
            <q-icon :name="uploadProgress[index].icon" />
          </q-avatar>

          <div class="ellipsis relative-position">
            {{ file.name }}
          </div>

          <q-tooltip>
            {{ file.name }}
          </q-tooltip>
        </q-chip>
      </template>

      <template v-slot:after v-if="canUpload">
        <q-btn
          color="primary"
          dense
          icon="cloud_upload"
          round
          @click="upload"
          :disable="!canUpload"
          :loading="isUploading"
        />
      </template>
    </q-file>
  </div>
</template>

<script>
import { ref, computed, onBeforeUnmount } from 'vue'

export default {
  setup () {
    const files = ref(null)
    const uploadProgress = ref([])
    const uploading = ref(null)

    function cleanUp () {
      clearTimeout(uploading.value)
    }

    function updateUploadProgress () {
      let done = true

      uploadProgress.value = uploadProgress.value.map(progress => {
        if (progress.percent === 1 || progress.error === true) {
          return progress
        }

        const percent = Math.min(1, progress.percent + Math.random() / 10)
        const error = percent < 1 && Math.random() > 0.95

        if (error === false && percent < 1 && done === true) {
          done = false
        }

        return {
          ...progress,
          error,
          color: error === true ? 'red-2' : 'green-2',
          percent
        }
      })

      uploading.value = done !== true
        ? setTimeout(updateUploadProgress, 300)
        : null
    }

    onBeforeUnmount(cleanUp)

    return {
      files,
      uploadProgress,
      uploading,

      isUploading: computed(() => uploading.value !== null),
      canUpload: computed(() => files.value !== null),

      cancelFile (index) {
        this.uploadProgress[ index ] = {
          ...this.uploadProgress[ index ],
          error: true,
          color: 'orange-2'
        }
      },

      updateFiles (newFiles) {
        files.value = newFiles
        uploadProgress.value = (newFiles || []).map(file => ({
          error: false,
          color: 'green-2',
          percent: 0,
          icon: file.type.indexOf('video/') === 0
            ? 'movie'
            : (file.type.indexOf('image/') === 0
                ? 'photo'
                : (file.type.indexOf('audio/') === 0
                    ? 'audiotrack'
                    : 'insert_drive_file'
                  )
              )
        }))
      },

      upload () {
        cleanUp()

        const allDone = uploadProgress.value.every(progress => progress.percent === 1)

        uploadProgress.value = uploadProgress.value.map(progress => ({
          ...progress,
          error: false,
          color: 'green-2',
          percent: allDone === true ? 0 : progress.percent
        }))

        updateUploadProgress()
      }
    }
  }
}
</script>