App.vue 5.13 KB
Newer Older
Mathias Goebel's avatar
Mathias Goebel committed
1
2
<template>
  <div id="q-app">
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
    <q-layout view="hHh lpr fff">
      <Header
        :collection="collection"
        :itemurl="itemurl"
        :itemurls="itemurls"
        :manifests="manifests"
        :status="status"
      />

      <q-page-container>
        <router-view
          :collection="collection"
          :imageurl="imageurl"
          :itemurl="itemurl"
          :manifests="manifests"
          :request="request"
          :tree="tree"
        />
      </q-page-container>
    </q-layout>
Mathias Goebel's avatar
Mathias Goebel committed
23
24
25
26
  </div>
</template>

<script>
27
28
import Header from '@/components/quasar-header.vue';

Mathias Goebel's avatar
Mathias Goebel committed
29
export default {
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
  name: 'Viewer',
  components: {
    Header,
  },
  data() {
    return {
      collection: {},
      config: {},
      imageurl: '',
      itemcontent: {},
      itemurl: '',
      itemurls: [],
      label: '',
      manifests: [],
      status: {
        image: true, text: true, metadata: true, treeview: true,
      },
      tree: [],
    };
  },
  methods: {
    async request(url, responsetype = 'json') {
      const response = await fetch(url);
      const data = await (responsetype === 'text' ? response.text() : response.json());

      return data;
    },
    getCollection(url) {
      this.request(url)
        .then((data) => {
          this.collection = data;
          this.label = this.getLabel(data);

          this.tree.push({ label: this.label, children: [] });

          if (Array.isArray(data.sequence)) {
            data.sequence.forEach((seq) => this.getManifest(seq.id));
          }
        });
    },
    getConfig() {
      this.config = JSON.parse(document.getElementById('emo-config').text);
    },
    getImageUrl(url) {
      this.request(url)
        .then((data) => {
          this.imageurl = data.image && data.image.id ? data.image.id : '';
        });
    },
    getItemContent(itemurl) {
      this.request(itemurl)
        .then((data) => {
          this.itemcontent.collectiontitle = data.title ? data.title : 'No Title provided';
          this.itemcontent.contenturl = data.content;
          this.itemcontent.imageurl = data.image && data.image.id ? data.image.id : '';
          this.itemcontent.itemlanguage = data.language;
          this.itemcontent.pagenumber = data.n ? data.n : 'No pagenumber provided';
        });
    },
    getItemIndex(nodelabel) {
      let idx = 0;
      this.itemurls.forEach((item, index) => {
        if (item === nodelabel) {
          idx = index;
        }
      });
      return idx;
    },
    getItemUrls(sequence, label) {
      const urls = [];

      sequence.forEach((obj) => {
        urls.push(
          {
            label: obj.id,
            handler: (node) => {
              if (this.itemurl === node.label) {
                return;
              }
              this.$root.$emit('update-item', node.label);
              this.$root.$emit('update-item-index', this.getItemIndex(node.label));
              this.$root.$emit('update-nav-sequence', this.getSequenceIndex(label));
              this.$root.$emit('update-sequence-index', label);
            },
          },
        );
      });
      return urls;
    },
    getLabel(data) {
      if (Object.keys(this.collection).length) {
        return data.title && data.title[0].title ? data.title[0].title : data.label;
      }
      return data.label ? data.label : 'Manifest <small>(No label available)</small>';
    },
    getManifest(url) {
      this.request(url)
        .then((data) => {
          if (!Array.isArray(data.sequence)) {
            data.sequence = [data.sequence];
          }

          if (data.sequence[0] !== 'undefined') {
            data.sequence.map((seq) => this.itemurls.push(seq.id));
          }
          this.manifests.push(data);

          this.tree[0].children.push(
            { label: data.label, children: this.getItemUrls(data.sequence, data.label) },
          );

          if (!this.label) {
            this.label = this.getLabel(data);
          }
          // make sure that urls are set just once on init
          if (!this.itemurl && data.sequence[0]) {
            this.itemurl = data.sequence[0].id;
            this.getImageUrl(data.sequence[0].id);
          }
        });
    },
    getSequenceIndex(nodelabel) {
      let index = 0;
      this.manifests.forEach((manifest, idx) => {
        if (manifest.label === nodelabel) {
          index = idx;
        }
      });
      return index;
    },
    init() {
      return this.config.entrypoint.match(/collection.json\s?$/)
        ? this.getCollection(this.config.entrypoint)
        : this.getManifest(this.config.entrypoint);
    },
  },
  created() {
    this.getConfig();
    this.init();

    this.itemurls.sort((a, b) => a.localeCompare(b, undefined, { numeric: true }));
  },
  mounted() {
    this.$root.$on('update-item', (url) => {
      this.itemurl = url;
      this.$router.push({ query: { itemurl: url } });
      // NOTE: Set imageurl to an empty string. Otherwise, if there is no corresponding image,
      // the "preceding" image according to the "preceding" itemurl will be shown.
      this.imageurl = '';
      this.getImageUrl(url);
    });

    this.$root.$on('update-panel-status', (status) => {
      this.status = status;
    });
  },
Mathias Goebel's avatar
Mathias Goebel committed
186
187
};
</script>