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<template>
<el-input
:id="id"
ref="form-item"
class="m-input-currency"
v-model="model"
v-bind="$attrs"
v-on="$listeners"
v-bind:disabled="isDisable"
@blur="onBlur"
@focus="focus"
/>
</template>
<script>
import BigNumber from "./bignumber";
export default {
props: {
value: {
type: [String, Number],
default: undefined
},
currency: {
type: String,
default: "ZH"
},
precision: {
type: Number,
default: 2
},
max: {
type: [Number, String],
default: Infinity
},
min: {
type: [Number, String],
default: 0
},
disabled: {
type: Boolean,
default: false
},
id: {
type: String,
default: ""
}
},
data() {
return {
isOnBlur: true
};
},
computed: {
model: {
get() {
return this.formatCurrency(this.value);
},
set(newVal) {
this.$emit("input", this.formatValue(newVal));
}
},
mode() {
return this.$store.state.Status.mode;
},
highlight() {
return this.$store.state.Status.highlights.indexOf(this.id) !== -1;
},
isDisable: {
get() {
return this.mode === "display" || this.disabled;
}
}
},
methods: {
onBlur() {
this.isOnBlur = true;
},
focus() {
this.isOnBlur = false;
},
formatCurrency(value) {
let max = this.max.toString();
let min = this.min.toString();
if (
this.value !== null &&
this.value !== undefined &&
this.value.toString
) {
if (this.isOnBlur) {
value = this.formatValue(value.toString());
if (value === "" || value === "-") {
this.model = "";
return "";
}
let valueNum = new BigNumber(value);
let maxNum = new BigNumber(max);
let minNum = new BigNumber(min);
if (valueNum.comparedTo(maxNum) == 1) {
value = max;
}
if (valueNum.comparedTo(minNum) == -1) {
value = min;
}
let sign = true;
let array = [];
if (value[0] == "-") {
sign = false;
array = value.slice(1).split(".");
} else {
array = value.split(".");
}
// 增加逗号
var temp = "";
while (array[0].length > 3) {
temp =
"," +
array[0].substring(array[0].length - 3, array[0].length) +
temp;
array[0] = array[0].substring(0, array[0].length - 3);
}
temp = array[0] + temp;
if (this.currency === "392" || this.currency === "JPY") {
this.model = sign ? temp : "-" + temp;
return sign ? temp : "-" + temp;
}
if (this.precision <= 0) {
temp = temp;
} else if (array.length === 1) {
// 没有小数位数，补全 0
temp += ".";
// if (this.precision)
for (var i = 0; i < this.precision; i++) {
temp += "0";
}
} else if (array[1].length < this.precision) {
temp += "." + array[1];
// 精度不足补全 0
for (var i = array[1].length; i < this.precision; i++) {
temp += "0";
}
} else {
temp += "." + array[1].substring(0, this.precision);
}
this.model = sign ? temp : "-" + temp;
return sign ? temp : "-" + temp;
} else {
return this.formatValue(value);
}
}
return this.value;
},
formatValue(value) {
if (value !== null && value !== undefined && value.toString) {
var temp = value
.toString()
.split(",")
.join("");
// 取出正负符号
let sign = true;
if (temp[0] == "-") {
sign = false;
temp = temp.slice(1);
}
// 以小数点开头的前面加 0
if (temp.charAt(0) === ".") temp = "0" + temp;
// 以0 为开头且后面不是小数点的去掉前面的 0
if (temp.charAt(0) === "0" && temp.length > 1 && temp.charAt(1) !== ".")
temp = temp.substring(1);
// 日元只保留前面的数字
if (this.currency === "392" || this.currency === "JPY") {
var i = 0;
while (i < temp.length) {
if (!(temp.charAt(i) >= "0" && temp.charAt(i) <= "9")) break;
i++;
}
temp = temp.substring(0, i);
} else {
// 其他币种取出前面整数和小数部分
var i = 0;
while (i < temp.length) {
if (
!(
(temp.charAt(i) >= "0" && temp.charAt(i) <= "9") ||
temp.charAt(i) === "."
)
)
break;
i++;
}
temp = temp.substring(0, i);
var array = temp.split(".");
if (this.precision <= 0) {
temp = array[0];
} else if (array.length > 1 && array[1].length > 0) {
temp = array[0] + "." + array[1].substring(0, this.precision);
} else if (array.length > 1 && array[1].length === 0) {
temp = array[0] + "."; // 原来有小数点的地方也保留小数
} else {
temp = array[0];
}
}
return sign ? temp : "-" + temp;
}
return value;
}
}
};
</script>
<style>
/* .el-input.highlight .el-input__inner{
border-color: red;
} */
.el-input.m-input-currency .el-input__inner {
text-align: right;
}
</style>