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
|
<template>
<div class="bg-stone-900 text-stone-50 flex relative" :class="{'flex-col': vert}" ref="rootRef">
<div v-for="p in periods" :key="p.label" :style="periodStyles(p)">
<div :style="labelStyles">{{p.label}}</div>
</div>
<TransitionGroup name="fade">
<div v-for="d in timelineData" :key="d.id"
class="absolute bg-yellow-200/30" :style="spanStyles(d)">
{{d.id}}
</div>
</TransitionGroup>
</div>
</template>
<script setup lang="ts">
import {ref, computed, onMounted} from 'vue';
import {MIN_DATE, MAX_DATE} from '../lib';
// Refs
const rootRef = ref(null as HTMLElement | null);
// Props
const props = defineProps({
vert: {type: Boolean, required: true},
timelineData: {type: Object, required: true},
});
// Static time periods to represent
const periods = ref([
{label: 'One', len: 1},
{label: 'Two', len: 2},
{label: 'Three', len: 1},
]);
// For size tracking
const width = ref(0);
const height = ref(0);
const WRITING_MODE_HORZ = window.getComputedStyle(document.body)['writing-mode'].startsWith('horizontal');
const resizeObserver = new ResizeObserver((entries) => {
for (const entry of entries){
if (entry.contentBoxSize){
const boxSize = Array.isArray(entry.contentBoxSize) ? entry.contentBoxSize[0] : entry.contentBoxSize;
width.value = WRITING_MODE_HORZ ? boxSize.inlineSize : boxSize.blockSize;
height.value = WRITING_MODE_HORZ ? boxSize.blockSize : boxSize.inlineSize;
}
}
});
onMounted(() => resizeObserver.observe(rootRef.value as HTMLElement));
// Styles
function periodStyles(period){
return {
outline: '1px solid gray',
flexGrow: period.len,
};
}
const labelStyles: Record<string,string> = computed(() => ({
transform: props.vert ? 'rotate(90deg) translate(50%, 0)' : 'none',
whiteSpace: 'nowrap',
width: props.vert ? '40px' : 'auto',
padding: props.vert ? '0' : '4px',
}));
function spanStyles(d){
let styles: Record<string,string>;
let availLen = props.vert ? height.value : width.value;
let startFrac = (d.start - MIN_DATE) / (MAX_DATE - MIN_DATE);
let lenFrac = (d.end - d.start) / (MAX_DATE - MIN_DATE);
let startPx = Math.max(0, availLen * startFrac); // Prevent negatives due to end-padding
let lenPx = Math.min(availLen - startPx, availLen * lenFrac);
lenPx = Math.max(1, lenPx);
if (props.vert){
styles = {
top: startPx + 'px',
left: 0,
height: lenPx + 'px',
width: '100%',
}
} else {
styles = {
top: 0,
left: startPx + 'px',
height: '100%',
width: lenPx + 'px',
}
}
return {
...styles,
transition: 'all 300ms ease-out',
};
}
</script>
|
