e7893a68
 梁灏
update ColorPicker
|
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
|
<template>
<div class="ivu-color-picker-hue">
<div class="ivu-color-picker-hue-container" ref="container"
@mousedown="handleMouseDown"
@touchmove="handleChange"
@touchstart="handleChange">
<div class="ivu-color-picker-hue-pointer" :style="{top: 0, left: pointerLeft}">
<div class="ivu-color-picker-hue-picker"></div>
</div>
</div>
</div>
</template>
<script>
export default {
name: 'Hue',
props: {
value: Object
},
data () {
return {
oldHue: 0,
pullDirection: ''
};
},
computed: {
colors () {
const h = this.value.hsl.h;
if (h !== 0 && h - this.oldHue > 0) this.pullDirection = 'right';
if (h !== 0 && h - this.oldHue < 0) this.pullDirection = 'left';
this.oldHue = h;
return this.value;
},
pointerLeft () {
if (this.colors.hsl.h === 0 && this.pullDirection === 'right') return '100%';
return (this.colors.hsl.h * 100) / 360 + '%';
}
},
methods: {
handleChange (e, skip) {
!skip && e.preventDefault();
const container = this.$refs.container;
const containerWidth = container.clientWidth;
const xOffset = container.getBoundingClientRect().left + window.pageXOffset;
const pageX = e.pageX || (e.touches ? e.touches[0].pageX : 0);
const left = pageX - xOffset;
let h;
let percent;
if (left < 0) {
h = 0;
} else if (left > containerWidth) {
h = 360;
} else {
percent = left * 100 / containerWidth;
h = (360 * percent / 100);
}
if (this.colors.hsl.h !== h) {
this.$emit('change', {
h: h,
s: this.colors.hsl.s,
l: this.colors.hsl.l,
a: this.colors.hsl.a,
source: 'hsl'
});
}
},
handleMouseDown (e) {
this.handleChange(e, true);
window.addEventListener('mousemove', this.handleChange);
window.addEventListener('mouseup', this.handleMouseUp);
},
handleMouseUp () {
this.unbindEventListeners();
},
unbindEventListeners () {
window.removeEventListener('mousemove', this.handleChange);
window.removeEventListener('mouseup', this.handleMouseUp);
}
}
};
</script>
|
