pco/app/uni_modules/uni-popup/components/uni-popup-dialog/keypress.js

// #ifdef H5
export default {
    name: 'Keypress',
    props: {
        disable: {
            type: Boolean,
            default: false
        }
    },
    mounted() {
        const keyNames = {
            esc: ['Esc', 'Escape'],
            tab: 'Tab',
            enter: 'Enter',
            space: [' ', 'Spacebar'],
            up: ['Up', 'ArrowUp'],
            left: ['Left', 'ArrowLeft'],
            right: ['Right', 'ArrowRight'],
            down: ['Down', 'ArrowDown'],
            delete: ['Backspace', 'Delete', 'Del']
        }
        const listener = ($event) => {
            if (this.disable) {
                return
            }
            const keyName = Object.keys(keyNames).find(key => {
                const keyName = $event.key
                const value = keyNames[key]
                return value === keyName || (Array.isArray(value) && value.includes(keyName))
            })
            if (keyName) {
                // 避免和其他按键事件冲突
                setTimeout(() => {
                    this.$emit(keyName, {})
                }, 0)
            }
        }
        document.addEventListener('keyup', listener)
        this.$once('hook:beforeDestroy', () => {
            document.removeEventListener('keyup', listener)
        })
    },
    render: () => {
    }
}
// #endif