[散修弟子]JS-2011|2019年10月08日的日报-技能树.IT修真院

发表于： 2019-10-08 17:25:00

2 836

任务进展——任务十

一、 任务进度：95%；

① 效果呈现

页面操作

页面切换

二、 近期情况

1. 完成bootstrap的表单的应用

HTML

① 每个form-group都包含一个基本表单组件，多个表单组件通过栅格系统排列，并实现在不同分辨率屏幕下的自适应变化；

② 单选框和多选框的name要一样才生效，且都要包含在form标签里面；

                  <div class="form-group m-0 d-flex flex-column">
                    <div class="form-row no-gutters m-0">
                      <div
                        class="custom-control custom-radio custom-control-inline p-0 col-sm col-12"
                      >
                        <input
                          type="radio"
                          id="box-outside"
                          name="box-size"
                          class="custom-control-input d-none"
                          checked
                        />
                        <label class="custom-control-label" for="box-outside">
                          外径
                        </label>
                      </div>

                      <div
                        class="form-inline d-flex align-items-center specific-size"
                      >
                        <div class="form-group flex-nowrap col-sm-4 col-12">
                          <label for="box-length1">
                            长
                          </label>
                          <input
                            type="search"
                            id="box-length1"
                            name="box-outside-length1"
                            class="form-control"
                            maxlength="4"
                            oninput="value=value.replace(/[^\d]/g,'')"
                            required
                          />
                          <span>mm</span>
                        </div>
                        <div class="form-group flex-nowrap col-sm-4 col-12">
                          <label for="box-width1">
                            宽
                          </label>
                          <input
                            type="search"
                            id="box-width1"
                            name="box-outside-width1"
                            class="form-control"
                            maxlength="4"
                            oninput="value=value.replace(/[^\d]/g,'')"
                            required
                          />
                          <span>mm</span>
                        </div>
                        <div class="form-group flex-nowrap col-sm-4 col-12">
                          <label for="box-height1">
                            高
                          </label>
                          <input
                            type="search"
                            id="box-height1"
                            name="box-outside-height1"
                            class="form-control"
                            maxlength="4"
                            oninput="value=value.replace(/[^\d]/g,'')"
                            required
                          />
                          <span>mm</span>
                        </div>
                      </div>
                    </div>

CSS

① 对于单选框和多选框前面的按钮样式定义，都是::before为勾选前状态，::after为勾选后状态，且通过position:absolute，定位在相同位置上，且custom-control的类在min-height设置为1.5rem，需修改才能变小；

② 对于input的单行文本框，form-control的类默认宽度为100%，且是块状元素，所以要定义为内联块状元素，如想定义输入文本的字体大小，直接定义字体大小即可，再定义文本框的宽高尺寸；

#form .form-content {
  padding: 0.25em 0.8em;
  width: 100%;

  background-color: #fbfcff;
}
#form .form-content .custom-control {
  margin: 1em 2.4em;
  min-height: 0;

  font-size: 0.5em;
  color: #666;
}
#form .form-content .custom-control-label {
  cursor: pointer;
}
#form .form-content .custom-control-label::before,
#form .form-content .custom-control-label::after {
  display: inline-block;
  top: 0.25em;
  left: -2em;

  width: 1em;
  height: 1em;
} /* 定义表单内容区的单选按钮组的样式 */

.specific-size label,
.specific-size span,
.amount-size label,
.amount-size span {
  margin: 0 0.4em;
  font-size: 0.5em;
  color: #666;
}
.specific-size .form-control,
.amount-size .form-control {
  display: inline-block;
  padding: 0.4em;

  width: 4.5em;
  height: 2em;

  font-size: 0.5em;
  color: #666;

  border: 0.04em solid #e8e8e8;
  border-radius: 0;
}
.specific-size .form-control:focus,
.amount-size .form-control:focus {
  box-shadow: 0 0 0.4em #1d7ad9;
} /* 定义表单内容区的确定尺寸的具体数字区的样式 */

2. 完成bootstrap的下拉菜单的应用

HTML

                  <div class="dropdown ml-auto d-flex align-items-center">
                    <button
                      type="button"
                      class="btn p-0 text-nowrap"
                      data-toggle="dropdown"
                      aria-haspopup="true"
                      aria-expanded="false"
                    >
                      查看详情
                      <span class="dropdown-toggle"></span>
                    </button>
                    <div class="dropdown-menu p-0">
                      <a class="dropdown-item" href="#">Action</a>
                      <a class="dropdown-item" href="#">Another action</a>
                      <a class="dropdown-item" href="#">Something else here</a>
                    </div>
                  </div>

CSS

#form .form-content .dropdown {
  padding: 0.3em 0.4em;
  padding-right: 0.1em;

  height: 1.2em;

  font-size: 0.625rem;
  border: 0.05em solid #e8e8e8;
  background-color: #fff;
}
#form .form-content .dropdown .btn {
  font-size: 0.4em;
  color: #999;
}
#form .form-content .dropdown .btn:focus {
  box-shadow: none;
}
#form .form-content .dropdown .dropdown-toggle {
  display: inline-block;
  margin-left: 1em;

  width: 1.2em;
  height: 1.5em;

  font-size: 1.5em;
  color: #fff;

  border: none;
  border-radius: 0.1em;
  background-color: #1d7ad9;
}
#form .form-content .dropdown .dropdown-menu {
  min-width: 100%;
  font-size: 0.625rem;
}
#form .form-content .dropdown .dropdown-item {
  padding: 1em;

  font-size: 0.4em;
  color: #666;
} /* 定义表单内容区的下拉菜单的样式 */

3. 完成导航栏的自动添加active的Jquery应用

HTML

    <nav class="navbar navbar-expand navbar-dark" id="navbar-top">
      <ul class="navbar-nav ml-auto">
        <li class="nav-item w-100 ml-0 ml-3">
          <a class="nav-link p-0 text-nowrap text-center" href="#">
            首页
            <span class="sr-only">(current)</span>
          </a>
        </li>
        <li class="nav-item w-100 ml-0 ml-3 active">
          <a class="nav-link p-0 text-nowrap text-center" href="#">
            在线定制
          </a>
        </li>
        <li class="nav-item w-100 ml-0 ml-3">
          <a class="nav-link p-0 text-nowrap text-center" href="#">
            标准箱
          </a>
        </li>
        <li class="nav-item w-100 ml-0 ml-3">
          <a class="nav-link p-0 text-nowrap text-center" href="#">
            品质保障
          </a>
        </li>
      </ul>
    </nav>

      $("nav .nav-item").click(function() {
        $("nav .nav-item").removeClass("active");
        $(this).addClass("active");
      }); // 自动添加active

4. 完成bootstrap的进度条的应用

HTML

① 通过多个进度条的内联排列在一起，来形成整条带序号的进度条，并可以作为轮播图的轮播指示使用；

② 作为carousel-indicators的轮播指示，子元素可以不用为li标签，可以是其他标签，通过data-target和data-slide-to来绑定内容对象和页面位置即可，如不想点击轮播指示来切换页面，则不用添加data-target，只需data-silde-to来实现根据页面切换情况来自动添加active；

        <article
          class="d-flex justify-content-center carousel-indicators position-static m-0"
          id="steps"
        >
          <section
            class="d-flex flex-column justify-content-center active"
            data-slide-to="0"
          >
            <div class="d-flex justify-content-center align-items-center">
              <div class="progress">
                <div
                  class="progress-bar active"
                  role="progressbar"
                  aria-valuenow="0"
                  aria-valuemin="0"
                  aria-valuemax="100"
                ></div>
              </div>
              <span class="step text-center align-middle">1</span>
            </div>
            <p class="step-text text-center">1.定制纸箱</p>
          </section>

          <section
            class="d-flex flex-column justify-content-center"
            data-slide-to="1"
          >
            <div class="d-flex justify-content-center align-items-center">
              <div class="progress">
                <div
                  class="progress-bar"
                  role="progressbar"
                  aria-valuenow="0"
                  aria-valuemin="0"
                  aria-valuemax="100"
                ></div>
              </div>
              <span class="step text-center align-middle">2</span>
            </div>
            <p class="step-text text-center">2.选择数量</p>
          </section>

          <section
            class="d-flex flex-column justify-content-center"
            data-slide-to="2"
          >
            <div class="d-flex justify-content-center align-items-center">
              <div class="progress">
                <div
                  class="progress-bar"
                  role="progressbar"
                  aria-valuenow="0"
                  aria-valuemin="0"
                  aria-valuemax="100"
                ></div>
              </div>
              <span class="step text-center align-middle">3</span>
            </div>
            <p class="step-text text-center">3.上传附件</p>
          </section>

          <section
            class="d-flex flex-column justify-content-center"
            data-slide-to="3"
          >
            <div class="d-flex justify-content-center align-items-center">
              <div class="progress">
                <div
                  class="progress-bar"
                  role="progressbar"
                  aria-valuenow="0"
                  aria-valuemin="0"
                  aria-valuemax="100"
                ></div>
              </div>
              <span class="step text-center align-middle">4</span>
            </div>
            <p class="step-text text-center">4.确认下单</p>
          </section>
        </article>

CSS

① 为实现页面切换时的动画效果，通过定义active的类的样式，即处于该页面时的进度条的选中状态，并定义进度条的动画过渡效果即transition；

② 再给所有进度条声明为该active的状态，通过~符号来声明active后的进度条应用未选中状态，从而实现进度条向前运动的效果；

#steps {
  float: right;
  position: relative;
  padding: 1em 0;
}
#steps .progress {
  width: 5em;
  height: 0.2em;

  font-size: 0.625rem;
  font-weight: 600;

  border-radius: 0;
  background-color: #ccc;
}
#steps .progress-bar {
  width: 100%;
  background-color: #ff7f02;
  border-radius: 0;
}
#steps section:first-child .progress,
#steps section:first-child .progress-bar {
  border-radius: 0.1em 0 0 0.1em;
}
#steps section:last-child .progress,
#steps section:last-child .progress-bar {
  border-radius: 0 0.1em 0.1em 0;
} /* 定义进度条的左右两端的圆角 */
#steps .step {
  position: absolute;

  width: 1.5em;
  height: 1.5em;

  font-size: 0.4em;
  color: #fff;

  border-radius: 50%;
  background-color: #ff7f02;
} /* 定义进度条和序号的样式*/

#steps .step-text {
  margin-top: 1.2em;
  margin-bottom: 1em;

  font-size: 0.5em;
  font-weight: 600;
  color: #ff7f02;
} /* 定义进度条的序号文字的样式 */

section .progress-bar,
section .step,
section .step-text {
  -webkit-transition: width 1s ease, background-color 1s ease, color 1s ease;
  transition: width 1s ease, background-color 1s ease, color 1s ease;
} 
/* 定义进度条变化过渡动画的效果 */

#steps .active .progress-bar {
  width: 100%;
}
#steps .active ~ section .progress-bar {
  width: 0%;
}

#steps .active .step {
  background-color: #ff7f02;
}
#steps .active ~ section .step {
  background-color: #ccc;
}

#steps .active .step-text {
  color: #ff7f02;
} 
#steps .active ~ section .step-text {
  color: #ccc;
}
/* 给轮播图的轮播指示定义动画变化，
通过默认状态为选中状态，~符号指定后面都为初始状态，由此实现点击下一步，保留已选中状态 */

5. 完成bootstrap的轮播图组件改造为ppt组件

HTML

① form标签为carousel，进度条为carousel-indicators，表单内容为carousel-inner，其里面的具体内容通过carousel-item来实现自动添加active，下一步按钮为轮播的控制项；

② 通过在form标签即carousel类，去除data-ride属性，添加data-interval="false"（轮播切换延迟时间为无限长），实现不会自动轮播且禁止滑动切换，并且也不会出现点击控制项后又会出现自动轮播的现象；

③ 通过在carousel-indicators去除data-target，实现不会点击序号来切换页面，只需添加data-slide-to属性，即可实现页面切换时自动添加active;

④ carousel-inner作为轮播图的父元素即框架，而carousel-item作为轮播图中的页面，框架大小可由页面撑开，而页面则由表单内容撑开，从而实现自适应时不会出现滚动条；

⑤ 轮播图的控制项，不用carousel-control-prev或carousel-control-next的类来默认样式，只需添加href和data-silde属性，即可实现对轮播图页面的控制；

        <article class="form-group row m-0 d-flex justify-content-center w-100"
          id="carousel-control"
        >
          <button
            type="button"
            class="back btn btn-outline-danger p-0"
            name="back"
            id="back"
            href="#paperbox"
            role="button"
            data-slide="prev"
          >
            上一步
          </button>
          <button
            type="submit"
            class="next btn p-0 border-0"
            name="next"
            id="next"
            href="#paperbox"
            role="button"
            data-slide="next"
          >
            下一步
          </button>
        </article>

① 由于轮播图的控制项会出现第一页和最后一页的轮回，即在第一页点击上一步按钮会回到最后一页的情况；

② 为避免此情况的出现，需要保证第一页没有上一步按钮，最后一页没有下一步按钮，点击下一步会出现上一步的按钮，点击上一步会出现下一步的按钮，由此通过jquery来获取进度条的active位置，来定义上一步按钮和下一步按钮的显隐情况；

      $("#back").click(function() {
        if ($("#steps section:eq(1)").hasClass("active")) {
          $("#back").hide();
        } else {
          $("#back").show();
        }
      }); // 当点击上一页的按钮时，如果第二页是有active的类，则返回第一页时上一页按钮消失
      $("#next").click(function() {
        $("#back").show();
      }); // 点击下一页按钮时，上一页按钮显示，由此实现第一页没有上一页按钮

      $("#next").click(function() {
        if ($("#steps section:eq(2)").hasClass("active")) {
          $("#next").hide();
        } else {
          $("#next").show();
        }
      }); // 当点击下一页的按钮时，如果第三页即倒数第二页是有active的类，则到最后一页时下一页按钮消失
      $("#back").click(function() {
        $("#next").show();
      }); // 点击上一页按钮时，下一页按钮显示，由此实现最后一页没有下一页按钮