• Scratch3.0开发记录(二)添加登录功能之创建窗口


    本文是Scratch3.0二次开发添加登录功能部分——添加点击登录按钮弹窗功能,下一篇会介绍添加接口部分以及登录接口怎么写。

    0. 写在前面

    借鉴:http://www.liyblog.top/   感谢!希望能一直更新。

    因为我对react本身不如vue那么熟悉,而且今日来感觉react比vue要繁琐很多,相关资料和帖子也远不如vue多,所以走了些弯路,如今总结一下,过程中可能不是很规范正确,产生一些问题,希望各位评论指出来,

    当然如果有更好的办法和帖子麻烦也在评论添加地址,我也去学习一下,总之希望能一起学习成长。我的邮箱:yh709459462@163.com。

    1. 基本文件结构

    因为是借鉴上边大佬的博客http://www.liyblog.top/p/22,我暂时时间比较紧不做赘述,以后再完善。所以各位有需要的先去按照他的教程,一步步往下走,大致是一样的,但是因为我和另一个人按教程走完后并不能成功,所以我做了一些改动。

    整个博文内容较多,有点格式问题请谅解

    按照上边的教程,走的差不多了之后,跟着我往下走。我的顺序可能是纯粹的改动,不会根据react运行流程去一个文件跳一个文件的改,这样更快,看上面的博文就能理解了文件跳转了。改动主要如下:

    (1)componets/login-modals目录以及里面的login-modals.jsx更改名字为login。其他文件不用动。

    login.jsx文件:

    import Modal from '../../containers/modal.jsx';
    import styles from './login.css';
    import React from 'react';
    import PropTypes from 'prop-types';
    import Box from '../box/box.jsx';
    import SubmitLoginButton from './submit-login-button.jsx';
    import SubmitSetupButton from './submit-setup-button.jsx';
    // eslint-disable-next-line no-unused-vars
    import connect from 'react-redux/es/connect/connect';
    import {closeLoginModal} from '../../reducers/modals';
    import classnames from 'classnames';

    const inputBox = styles.inputBox;
    const inputPhone = styles.inputPhone;
    const inputPwd = styles.inputPwd;
    const Login = props => (
    <Modal
    className={styles.modalContent}
    contentLabel={props.title}
    id="loginModal"
    onRequestClose={props.onCancel}
    >
    <Box
    className={styles.boxPadding}
    >
    <div
    className={classnames({
    [`${inputBox}`]: true,
    [`${inputPhone}`]: true
    })}
    >
    <input
    className={styles.minInput}
    name="account"
    placeholder="请输入手机号"
    type="text"
    />
    </div><br />
    <div
    className={classnames({
    [`${inputBox}`]: true,
    [`${inputPwd}`]: true
    })}
    >
    <input
    className={styles.minInput}
    name="password"
    placeholder="请输入密码"
    type="password"
    />
    </div><br />
    <SubmitLoginButton className={styles.btnSubmit} />
    <SubmitSetupButton className={styles.setupSubmit} />
    </Box>
    </Modal>
    );
    Login.propTypes = {
    // eslint-disable-next-line react/no-unused-prop-types
    onCancel: PropTypes.func.isRequired,
    title: PropTypes.string.isRequired
    };
    const mapStateToProps = states => ({
    loginError: states.scratchGui.userState.error
    })
    const mapDispatchToProps = dispatch => ({
    onCancel: () => dispatch(closeLoginModal())
    })
    // export default Login;
    export default connect(
    mapStateToProps,
    mapDispatchToProps
    )(Login);

    注意里面新添的注册按钮

    <SubmitSetupButton className={styles.setupSubmit} />按照submit-login-button.jsx复制改个名字就可以了。

    (2)修改containers/login.jsx

    // eslint-disable-next-line no-unused-vars
    import bindAll from 'lodash.bindall'; // 通用绑定this
    import PropTypes from 'prop-types'; // 类型
    import React from 'react';
    // eslint-disable-next-line no-unused-vars
    import {injectIntl, intlShape, defineMessages} from 'react-intl'; // 国际化
    import BbsComponent from '../components/bbs/bbs.jsx'; // 直播组件
    import {connect} from 'react-redux'; // redux 连接器
    import {closebbs} from '../reducers/modals'; // 关闭课程弹窗
    class Login extends React.PureComponent {
    constructor (props) {
    super(props);
    this.state = {
    loading: false // 加载状态
    };
    }
    // eslint-disable-next-line react/sort-comp
    render () {
    if (!this.props.visible) return null;
    return (
    <BbsComponent
    onRequestClose={this.props.onRequestClose}
    loading={this.state.loading}
    />
    );
    }
    componentDidMount (){

    }
    }

    Login.propTypes = {
    onRequestClose: PropTypes.func,
    visible: PropTypes.bool
    };

    const mapStateToProps = state => ({
    visible: state.scratchGui.modals.bbs
    });

    const mapDispatchToProps = dispatch => ({
    onRequestClose: () => dispatch(closebbs()) // 关闭当前弹窗
    });

    export default injectIntl(connect(
    mapStateToProps,
    mapDispatchToProps
    )(Login));

    (3)修改containers/gui.jsx

    showLoginModal: state.scratchGui.modals.login

    (4)修改reducers/modals.js中定义相关state:

    const MODAL_LOGIN = 'login';

     

    (5)修改components/menu-bar.jsx:

    这里是主要修改的部分之一
    因为登录按钮是在menu-bar中,这里可以去上边的博文地址查找添加登录入口的博文,我有时间会添加。我直接将按钮的点击事件添加在
    menu-bar。
     37行左右:
    import {openTipsLibrary, openLoginModal, closeLoginModal} from '../../reducers/modals';

    import LoginButton from './login-button.jsx';
    62行左右:
    openLoginMenu,
    closeLoginMenu,

    696行左右(也就是返回的html代码底部):
    (
    <LoginButton
    className={styles.menuBarButton}
    onClick={this.props.onClickloginon}

    />
    )

     769行左右:

    onClickloginon: PropTypes.func,
    onCancel: PropTypes.func.isRequired

     820行左右:

    onClickloginon: () => dispatch(openLoginModal()),
    onCancel: () => dispatch(closeLoginModal())



    至此就基本可以点击登录按钮弹出窗口了。
    
    
    
     

    (6)修改窗口的外观:

    modal.css中第19行的:   modal-content  是整个弹出框
    可以自己修改样式,我是添加了背景图
    background-image: url('./loginbg.png') ;
    background-position: 0 1.5rem;

    其他的样式通过浏览器自行定位,找不到css类名其实可以这么判断
    浏览器定位后,确定div的 class,是.modal_modal-content_3brCX ,这里直接取
    modal-content 即可,.login_input-phone_3BEMD,取
    input-phone即可找到
    _和- 两个符号 的规律自己体会。

    下面放上我components/login目录结构和css

     login.css:

    @import "../../css/colors.css";
    @import "../../css/units.css";
    .modal-content {
    560px;
    background-repeat:no-repeat;
    background-size:100% 100%;
    -moz-background-size:100% 100%;
    }
    .box-padding {
    22rem;
    height: 100%;
    float: right;
    padding: 2rem 2rem 3rem 6rem;
    /*padding: 40px 40px 40px 230px;*/
    }
    .input-box{
    background-repeat: no-repeat;
    background-position: .3rem center;
    border-bottom: 1px solid #eaeaea;
    margin-bottom: 1rem;
    height: 2.2rem;
    padding-left: 2rem;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    background-size: auto 1rem;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    }
    .input-phone{
    background-image: url("./phone.png");
    }
    .input-pwd{
    background-image: url("./pwd.png");
    }
    .min-input, .max-input {
    border: none;
    -webkit-box-flex: 1;
    -webkit-flex: 1;
    -ms-flex: 1;
    flex: 1;
    height: 1.5rem;
    border-left: 1px solid #f7f7f7;
    outline: none;
    text-indent: 1rem;
    font-size: .8rem;
    -webkit-transition: all .3s;
    -o-transition: all .3s;
    transition: all .3s;
    }
    .submit-login-button {
    background: $data-primary;
    }
    .btn-submit {
    background: linear-gradient(90deg,rgba(51,200,255,1),rgba(112,146,255,1));
    font-size: 1.1rem;
    box-shadow: 0 8px 7px 0 rgba(112,146,255,0.22);
    border-radius: 1.2rem;
    letter-spacing: .5rem;
    /*background: hsla(40, 100%, 55%, 1);*/
    height: 2.4rem;
    alignment: center;
    cursor: pointer;

    font-weight: bold;
    display: grid;
    flex-direction: row;
    align-items: center;
    user-select: none;
    color:#fff;
    text-align: center;
    }
    .setup-submit{
    text-align: center;
    color: #999;
    font-size: .7rem;
    text-decoration: none;
    line-height: 1.5em;
    display: block;
    padding: 1rem 0;
    }
    .login-Btn{
    display: grid;
    text-align: center;
    }
    .setup-Btn{
    display: grid;
    text-align: center;
    }








     modal.css:

    @import "../../css/colors.css";
    @import "../../css/units.css";
    @import "../../css/z-index.css";

    .modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: $z-index-modal;
    background-color: $ui-modal-overlay2;
    }

    .modal-content * {
    box-sizing: border-box;
    }

    .modal-content {
    margin: 100px auto;
    outline: none;
    border: 4px solid $ui-white-transparent;
    padding: 0;
    border-radius: $space;
    user-select: none;

    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: $text-primary;
    overflow: hidden;
    background-image: url('./loginbg.png') ;
    background-position: 0 1.5rem;
    }

    .modal-content.full-screen {
    position: absolute;

    display: flex;
    height: 100%;
    100%;

    overflow-y: auto;
    -webkit-overflow-scrolling: 'touch';
    user-select: none;

    background-color: $ui-secondary;

    /* Default modal resets */
    margin: 0;
    border: none;
    border-radius: 0;
    }


    /*
    Modal header has 3 items:
    |filter title x|

    Use the same width for both side item containers,
    so that title remains centered
    */
    $sides: 20rem;

    .header {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-start;
    height: $library-header-height;

    box-sizing: border-box;
    100%;
    background-color: $motion-primary;

    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 1rem;
    font-weight: normal;
    }

    .header-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    text-decoration: none;
    color: $ui-white;
    user-select: none;
    }

    [dir="ltr"] .header-image {
    margin-right: 0.5rem;
    }

    [dir="rtl"] .header-image {
    margin-left: 0.5rem;
    }

    .header-item-filter {
    display: flex;
    flex-basis: $sides;
    justify-content: flex-start;
    }

    .header-item-title {
    flex-grow: 1;
    flex-shrink: 0;
    justify-content: center;
    user-select: none;
    letter-spacing: 0.4px;
    cursor: default;
    }

    [dir="ltr"] .header-item-title {
    margin: 0 -$sides 0 0;
    }

    [dir="rtl"] .header-item-title {
    margin: 0 0 0 -$sides;
    }

    .full-screen [dir="ltr"] .header-item-title {
    margin: 0 0 0 -$sides;
    }

    .full-screen [dir="rtl"] .header-item-title {
    margin: 0 -$sides 0 0;
    }

    .header-item-close {
    flex-basis: $sides;
    justify-content: flex-end;
    z-index: 1;
    }

    .full-screen .header-item-close {
    order: -1;
    justify-content: flex-start;
    }

    .back-button {
    font-weight: normal;
    padding-right: 0;
    padding-left: 0;
    }

    [dir="rtl"] .back-button img {
    transform: scaleX(-1);
    }

    .header-item-help {
    padding: 0;
    z-index: 1;
    }

    [dir="ltr"] .header-item-help {
    margin-right: -4.75rem;
    }

    [dir="rtl"] .header-item-help {
    margin-left: -4.75rem;
    }

    .help-button {
    font-weight: normal;
    font-size: 0.75rem;
    }

    [dir="ltr"] .help-button {
    padding-right: 0;
    }

    [dir="rtl"] .help-button {
    padding-left: 0;
    }
    3. 写在最后
    感谢http://www.liyblog.top的博文给我带来的帮助
    有问题可以评论或者发我邮箱yh709459462@163.com 数字部分是我q,着急的时候再加,注明来意,请勿骚扰。








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  • 原文地址:https://www.cnblogs.com/mryaohu/p/12480386.html
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