bug fix and performance improvements

miniprogram/miniprogram_npm/tdesign-miniprogram/stepper/stepper.js

@@ -0,0 +1,124 @@
+var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
+    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
+    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
+    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
+    return c > 3 && r && Object.defineProperty(target, key, r), r;
+};
+import { SuperComponent, wxComponent } from '../common/src/index';
+import config from '../common/config';
+import props from './props';
+const { prefix } = config;
+const name = `${prefix}-stepper`;
+let Stepper = class Stepper extends SuperComponent {
+    constructor() {
+        super(...arguments);
+        this.externalClasses = [`${prefix}-class`, `${prefix}-class-input`, `${prefix}-class-minus`, `${prefix}-class-plus`];
+        this.options = {
+            addGlobalClass: true,
+        };
+        this.properties = Object.assign({}, props);
+        this.controlledProps = [
+            {
+                key: 'value',
+                event: 'change',
+            },
+        ];
+        this.observers = {
+            value(v) {
+                this.observeValue(v);
+            },
+        };
+        this.data = {
+            currentValue: 0,
+            classPrefix: name,
+            prefix,
+        };
+    }
+    attached() {
+        const { value, min } = this.properties;
+        this.setData({
+            currentValue: value ? Number(value) : min,
+        });
+    }
+    isDisabled(type) {
+        const { min, max, disabled } = this.properties;
+        const { currentValue } = this.data;
+        if (disabled) {
+            return true;
+        }
+        if (type === 'minus' && currentValue <= min) {
+            return true;
+        }
+        if (type === 'plus' && currentValue >= max) {
+            return true;
+        }
+        return false;
+    }
+    observeValue(v) {
+        this.preValue = Number(v);
+        this.setData({
+            currentValue: this.format(Number(v)),
+        });
+    }
+    getLen(num) {
+        const numStr = num.toString();
+        return numStr.indexOf('.') === -1 ? 0 : numStr.split('.')[1].length;
+    }
+    add(a, b) {
+        const maxLen = Math.max(this.getLen(a), this.getLen(b));
+        const base = Math.pow(10, maxLen);
+        return Math.round(a * base + b * base) / base;
+    }
+    format(value) {
+        const { min, max, step } = this.properties;
+        return Math.max(Math.min(max, value, Number.MAX_SAFE_INTEGER), min, Number.MIN_SAFE_INTEGER).toFixed(this.getLen(step));
+    }
+    setValue(value) {
+        if (this.preValue === value)
+            return;
+        this.preValue = value;
+        this._trigger('change', { value: Number(value) });
+    }
+    minusValue() {
+        if (this.isDisabled('minus')) {
+            this.triggerEvent('overlimit', { type: 'minus' });
+            return false;
+        }
+        const { currentValue, step } = this.data;
+        this.setValue(this.format(this.add(currentValue, -step)));
+    }
+    plusValue() {
+        if (this.isDisabled('plus')) {
+            this.triggerEvent('overlimit', { type: 'plus' });
+            return false;
+        }
+        const { currentValue, step } = this.data;
+        this.setValue(this.format(this.add(currentValue, step)));
+    }
+    changeValue(e) {
+        const value = String(e.detail.value)
+            .split('.')[0]
+            .replace(/[^-0-9]/g, '') || 0;
+        this.setValue(this.format(Number(value)));
+        return value;
+    }
+    focusHandle(e) {
+        const value = this.changeValue(e);
+        this.triggerEvent('focus', { value });
+    }
+    inputHandle(e) {
+        if (e.detail.value === '') {
+            return;
+        }
+        const value = this.changeValue(e);
+        this.triggerEvent('input', { value });
+    }
+    blurHandle(e) {
+        const value = this.changeValue(e);
+        this.triggerEvent('blur', { value });
+    }
+};
+Stepper = __decorate([
+    wxComponent()
+], Stepper);
+export default Stepper;