color-picker.vue
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<template>
<Dropdown :class="classes" class-name="ivu-transfer-" ref="picker" trigger="click" :transfer="transfer" :placement="placement" @on-visible-change="handleToggleVisible">
<div :class="wrapClasses">
<i class="ivu-icon ivu-icon-arrow-down-b ivu-input-icon ivu-input-icon-normal"></i>
<div :class="inputClasses">
<div :class="[prefixCls + '-color']">
<div :class="[prefixCls + '-color-empty']" v-show="value === '' && !visible">
<Icon type="ios-close-empty"></Icon>
</div>
<div v-show="value || visible" :style="{backgroundColor: displayedColor}"></div>
</div>
</div>
</div>
<Dropdown-menu slot="list">
<div :class="[prefixCls + '-picker']">
<div :class="[prefixCls + '-picker-wrapper']">
<div :class="[prefixCls + '-picker-panel']">
<Saturation v-model="saturationColors" @change="childChange"></Saturation>
</div>
<div :class="[prefixCls + '-picker-hue-slider']">
<Hue v-model="saturationColors" @change="childChange"></Hue>
</div>
<div v-if="alpha" :class="[prefixCls + '-picker-alpha-slider']">
<Alpha v-model="saturationColors" @change="childChange"></Alpha>
</div>
<recommend-colors
v-if="colors.length"
:list="colors"
:class="[prefixCls + '-picker-colors']"
@picker-color="handleSelectColor"></recommend-colors>
<recommend-colors
v-if="!colors.length && recommend"
:list="recommendedColor"
:class="[prefixCls + '-picker-colors']"
@picker-color="handleSelectColor"></recommend-colors>
</div>
<div :class="[prefixCls + '-confirm']">
<span :class="[prefixCls + '-confirm-color']">{{ formatColor }}</span>
<Confirm @on-pick-success="handleSuccess" @on-pick-clear="handleClear"></Confirm>
</div>
</div>
</Dropdown-menu>
</Dropdown>
</template>
<script>
import tinycolor from 'tinycolor2';
import Icon from '../icon/icon.vue';
import Dropdown from '../dropdown/dropdown.vue';
import DropdownMenu from '../dropdown/dropdown-menu.vue';
import RecommendColors from './recommend-colors.vue';
import Confirm from '../date-picker/base/confirm.vue';
import Saturation from './saturation.vue';
import Hue from './hue.vue';
import Alpha from './alpha.vue';
import { oneOf } from '../../utils/assist';
const prefixCls = 'ivu-color-picker';
const inputPrefixCls = 'ivu-input';
function _colorChange (data, oldHue) {
data = data === '' ? '#2d8cf0' : data;
const alpha = data && data.a;
let color;
// hsl is better than hex between conversions
if (data && data.hsl) {
color = tinycolor(data.hsl);
} else if (data && data.hex && data.hex.length > 0) {
color = tinycolor(data.hex);
} else {
color = tinycolor(data);
}
if (color && (color._a === undefined || color._a === null)) {
color.setAlpha(alpha || 1);
}
const hsl = color.toHsl();
const hsv = color.toHsv();
if (hsl.s === 0) {
hsv.h = hsl.h = data.h || (data.hsl && data.hsl.h) || oldHue || 0;
}
// when the hsv.v is less than 0.0164 (base on test)
// because of possible loss of precision
// the result of hue and saturation would be miscalculated
if (hsv.v < 0.0164) {
hsv.h = data.h || (data.hsv && data.hsv.h) || 0;
hsv.s = data.s || (data.hsv && data.hsv.s) || 0;
}
if (hsl.l < 0.01) {
hsl.h = data.h || (data.hsl && data.hsl.h) || 0;
hsl.s = data.s || (data.hsl && data.hsl.s) || 0;
}
return {
hsl: hsl,
hex: color.toHexString().toUpperCase(),
rgba: color.toRgb(),
hsv: hsv,
oldHue: data.h || oldHue || hsl.h,
source: data.source,
a: data.a || color.getAlpha()
};
}
export default {
name: 'ColorPicker',
components: { Icon, Dropdown, DropdownMenu, Confirm, RecommendColors, Saturation, Hue, Alpha },
props: {
value: {
type: String
},
alpha: {
type: Boolean,
default: false
},
recommend: {
type: Boolean,
default: false
},
format: {
validator (value) {
return oneOf(value, ['hsl', 'hsv', 'hex', 'rgb']);
}
},
colors: {
type: Array,
default () {
return [];
}
},
disabled: {
type: Boolean,
default: false
},
size: {
validator (value) {
return oneOf(value, ['small', 'large', 'default']);
}
},
placement: {
validator (value) {
return oneOf(value, ['top', 'top-start', 'top-end', 'bottom', 'bottom-start', 'bottom-end', 'left', 'left-start', 'left-end', 'right', 'right-start', 'right-end']);
},
default: 'bottom'
},
transfer: {
type: Boolean,
default: false
}
},
data () {
return {
val: _colorChange(this.value),
prefixCls: prefixCls,
visible: false,
recommendedColor: [
'#2d8cf0',
'#19be6b',
'#ff9900',
'#ed3f14',
'#00b5ff',
'#19c919',
'#f9e31c',
'#ea1a1a',
'#9b1dea',
'#00c2b1',
'#ac7a33',
'#1d35ea',
'#8bc34a',
'#f16b62',
'#ea4ca3',
'#0d94aa',
'#febd79',
'#5d4037',
'#00bcd4',
'#f06292',
'#cddc39',
'#607d8b',
'#000000',
'#ffffff'
]
};
},
computed: {
saturationColors: {
get () {
return this.val;
},
set (newVal) {
this.val = newVal;
}
},
classes () {
return [
`${prefixCls}`,
{
[`${prefixCls}-transfer`]: this.transfer
}
];
},
wrapClasses () {
return [
`${prefixCls}-rel`,
`${prefixCls}-${this.size}`,
`${inputPrefixCls}-wrapper`,
`${inputPrefixCls}-wrapper-${this.size}`
];
},
inputClasses () {
return [
`${prefixCls}-input`,
`${inputPrefixCls}`,
`${inputPrefixCls}-${this.size}`,
{
[`${inputPrefixCls}-disabled`]: this.disabled
}
];
},
displayedColor () {
let color;
if (this.visible) {
const rgba = this.saturationColors.rgba;
color = {
r: rgba.r,
g: rgba.g,
b: rgba.b,
a: rgba.a
};
} else {
color = tinycolor(this.value).toRgb();
}
return `rgba(${color.r}, ${color.g}, ${color.b}, ${color.a})`;
},
formatColor () {
const value = this.saturationColors;
const format = this.format;
let color;
const rgba = `rgba(${value.rgba.r}, ${value.rgba.g}, ${value.rgba.b}, ${value.rgba.a})`;
if (format) {
if (format === 'hsl') {
color = tinycolor(value.hsl).toHslString();
} else if (format === 'hsv') {
color = tinycolor(value.hsv).toHsvString();
} else if (format === 'hex') {
color = value.hex;
} else if (format === 'rgb') {
color = rgba;
}
} else if (this.alpha) {
color = rgba;
} else {
color = value.hex;
}
return color;
}
},
watch: {
value (newVal) {
this.val = _colorChange(newVal);
},
visible () {
this.val = _colorChange(this.value);
}
},
methods: {
childChange (data) {
this.colorChange(data);
},
colorChange (data, oldHue) {
this.oldHue = this.saturationColors.hsl.h;
this.saturationColors = _colorChange(data, oldHue || this.oldHue);
},
isValidHex (hex) {
return tinycolor(hex).isValid();
},
simpleCheckForValidColor (data) {
const keysToCheck = ['r', 'g', 'b', 'a', 'h', 's', 'l', 'v'];
let checked = 0;
let passed = 0;
for (let i = 0; i < keysToCheck.length; i++) {
const letter = keysToCheck[i];
if (data[letter]) {
checked++;
if (!isNaN(data[letter])) {
passed++;
}
}
}
if (checked === passed) {
return data;
}
},
handleToggleVisible (visible) {
this.visible = visible;
},
handleSuccess () {
const color = this.formatColor;
this.$emit('input', color);
this.$emit('on-change', color);
this.$refs.picker.handleClose();
},
handleClear () {
this.$emit('input', '');
this.$refs.picker.handleClose();
},
handleSelectColor (color) {
this.val = _colorChange(color);
}
}
};
</script>