GCLS_Page_Exercise/src/views/exercise_questions/preview/components/common/FreewriteLettle.vue

<template>
  <div class="practice practiceSingleNPC">
    <i class="el-icon-close close-icon" @click="changePraShow()"></i>
    <div class="right-content">
      <SvgIcon icon-class="hanzi-writer-bg" class="character-target-bg" />
      <div class="right-strockred">
        <template v-if="!hasPlay && data && data.strokes_image">
          <img class="img" :src="data.strokes_image" alt="" />
        </template>
        <FreeWriteQP
          id="esign"
          ref="esign"
          :bg-color.sync="bgColor"
          :height="height"
          :is-crop="isCrop"
          :line-color="hanzicolor"
          :line-width="hanziweight"
          :width="width"
          class="vueEsign"
        />
        <a v-if="!disabled" class="clean-btn" @click="resetHuahua">
          <SvgIcon icon-class="reset" class="reset-btn" />
        </a>
      </div>
      <ul class="nav-list">
        <li :class="currenHzData && currenHzData.history ? '' : 'disabled'" @click="play()">播放</li>
        <li :class="disabled ? 'disabled' : ''" @click="handleWriteImg">保存</li>
      </ul>
    </div>
  </div>
</template>

<script>
import FreeWriteQP from './FreeWriteQP.vue';
export default {
  components: {
    FreeWriteQP,
  },
  props: {
    currentTreeID: {
      type: String,
      default: '',
    },
    currentHz: {
      type: String,
      default: '',
    },
    currenHzData: {
      type: Object,
      default: () => ({
        strokes_image: '',
        history: [],
      }),
    },
    rowIndex: {
      type: Number,
      default: 0,
    },
    colIndex: {
      type: Number,
      default: 0,
    },
    disabled: {
      type: Boolean,
      default: false,
    },
  },
  data() {
    return {
      width: 256,
      height: 256,
      bgColor: '',
      isCrop: false,
      //   learn_mode: "",
      playStorkes: false,
      navIndex: 0,
      colorsList: ['#404040', '#f65d4d', '#19b068', '#52a1ea', '#ff8c49'],
      weightList: [6, 10],
      colorIndex: 0,
      penIndex: 0,
      hanzicolor: '',
      hanziweight: '',
      imgOrCans: false,
      hasPlay: false,
      data: null,
    };
  },
  computed: {},
  watch: {},
  // 生命周期 - 创建完成（可以访问当前this实例）
  created() {
    let _this = this;
    let color = _this.colorsList[_this.colorIndex];
    _this.hanzicolor = color;
    _this.hanziweight = 6;
    if (_this.currenHzData && _this.currenHzData.strokes_image) {
      _this.imgOrCans = true;
    }
    _this.data = JSON.parse(JSON.stringify(_this.currenHzData));
  },
  // 生命周期 - 挂载完成（可以访问DOM元素）
  mounted() {},
  beforeCreate() {}, // 生命周期 - 创建之前
  beforeMount() {}, // 生命周期 - 挂载之前
  beforeUpdate() {}, // 生命周期 - 更新之前
  updated() {}, // 生命周期 - 更新之后
  beforeDestroy() {}, // 生命周期 - 销毁之前
  destroyed() {}, // 生命周期 - 销毁完成
  activated() {},
  // 方法集合
  methods: {
    play() {
      let _this = this;
      if (this.currenHzData && this.currenHzData.history) {
        if (this.hasPlay) {
          this.$message.warning('请等待播放完成');
          return;
        }
        if (this.$refs.esign) this.$refs.esign.reset();
        this.hasPlay = true;
        let c = document.getElementById('esign');
        let cxt = document.getElementById('esign').getContext('2d');
        cxt.clearRect(0, 0, c.width, c.height);
        let history = null;
        history = _this.currenHzData.history;
        const len = history.length;
        let i = 0;
        const runner = () => {
          i += 1;
          if (i < len) {
            _this.$refs.esign.draw(null, history[i][0], history[i][1]);
            requestAnimationFrame(runner);
          } else {
            _this.hasPlay = false;
          }
        };
        requestAnimationFrame(runner);
      }
    },

    changeNav(index) {
      this.navIndex = index;
    },
    changeColor(index) {
      let _this = this;
      _this.colorIndex = index;
      let color = _this.colorsList[index];
      _this.hanzicolor = color;
    },
    changeLearnMode(mode) {
      this.learn_mode = mode;
    },
    resetHuahua() {
      let _this = this;
      if (_this.hasPlay) {
        _this.$message.warning('请等待播放完成');
        return;
      }
      _this.imgOrCans = false;
      _this.$refs.esign.reset();
      if (_this.data) {
        _this.data.strokes_image = '';
      }
      _this.$emit('deleteWriteRecord', _this.rowIndex, _this.colIndex, _this.currentHz);
      // this.removeImage();
    },
    removeImage() {
      let _this = this;
      if (_this.data) {
        // let MethodName = 'teaching-practice_manager-DeleteMyHZHandwrittenRecord';
        // let data = {
        //   hz_handwritten_record_id: this.data.hz_handwritten_record_id,
        // };
        // LearnWebSI(MethodName, data).then((res) => {
        _this.$message.success('删除成功');
        _this.data = {};
        _this.$emit('deleteWriteRecord', _this.rowIndex, _this.colIndex);
        // });
      }
    },
    // 不保存到记录列表
    handleWriteImg() {
      if (this.disabled) return;
      if (this.$refs.esign.history.length === 0) return;
      this.$refs.esign.generate().then((res) => {
        let Book_img = res.replace('data:image/png;base64,', '');
        let write_img = `data:image/png;base64,${Book_img}`;
        let answer = {};
        answer = {
          hz: this.currentHz,
          strokes_content: JSON.stringify(this.$refs.esign.history),
          strokes_image: write_img,
        };
        this.$emit('changeCurQue', answer, this.colIndex);
        let obj = {
          history: this.$refs.esign.history,
          strokes_image: write_img,
        };
        this.$emit('closeIfFreeShow', obj, this.rowIndex, this.colIndex);
        // this.$message.warning("请先书写在保存");
      });
    },
    // 保存到记录列表
    handleWriteImg_save() {
      this.$refs.esign
        .generate()
        .then((res) => {
          let Book_img = res.replace('data:image/png;base64,', '');
          let write_img = `data:image/png;base64,${Book_img}`;
          let answer = {};
          answer = {
            hz: this.currentHz,
            strokes_content: JSON.stringify(this.$refs.esign.history),
            strokes_image: write_img,
          };
          this.$emit('changeCurQue', answer, this.colIndex);

          this.$message.success('保存成功！');
          let obj = {
            hz_handwritten_record_id: res.hz_handwritten_record_id,
            history: this.$refs.esign.history,
            strokes_image: write_img,
          };
          this.$emit('closeIfFreeShow', obj, this.rowIndex, this.colIndex);
        })
        .catch(() => {
          this.$message.warning('请先书写在保存');
        });
    },
    changePraShow() {
      this.$emit('changePraShow');
    },
  }, // 如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style lang="scss" scoped>
.practice {
  position: relative;
  width: 320px;
  max-height: 400px;
  margin: 0 auto;
  background: #f3f3f3;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 15%);

  .clean-btn {
    position: absolute;
    right: 8px;
    bottom: 8px;
    width: 16px;
    height: 16px;
    margin: 0 4px;
    color: $text-color;
    cursor: pointer;

    &:hover {
      color: #000;
    }
  }

  .close-icon {
    position: absolute;
    top: 0;
    right: 8px;
    z-index: 2;
    width: 32px;
    height: 32px;
    padding: 8px;
    cursor: pointer;
  }

  .Book_content {
    position: relative;
    box-sizing: border-box;
    display: flex;
    align-items: flex-start;
    width: 100%;
    height: 100%;
  }

  .left-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 144px;

    .left-content-pra {
      height: 162px;
    }
  }

  .right-content {
    position: relative;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    width: 288px;
    height: 360px;
    padding: 30px 16px;
    margin: 0 auto;
    background: #f3f3f3;
    border-radius: 16px;

    .nav-list {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      height: 34px;
      padding: 0;
      margin-top: 16px;
      list-style: none;

      > li {
        width: 124px;
        height: 34px;
        font-size: 14px;
        font-style: normal;
        font-weight: bold;
        line-height: 34px;
        color: #fff;
        text-align: center;
        cursor: pointer;
        background: #de4444;
        border-radius: 8px;

        &:hover {
          background: #f76565;
        }

        &:active {
          background: #c43c3c;
        }

        &.disabled {
          color: #fff;
          cursor: not-allowed;
          background-color: #c8c9cc;
          background-image: none;
          border-color: #c8c9cc;
        }
      }
    }

    .character-target-bg {
      position: absolute;
      top: 30px;
      left: 16px;
      width: 256px;
      height: 250px;
      color: #dedede;
    }

    .right-strockred {
      position: relative;
      width: 256px;
      height: 256px;
      overflow: hidden;
      border-radius: 8px;

      .img {
        position: absolute;
      }
    }

    .footer {
      position: absolute;
      bottom: 80px;
      display: flex;
      align-items: center;
      justify-content: flex-end;
      width: 100%;
      padding-right: 40px;
    }
  }
}

.strockplay {
  box-sizing: border-box;
  width: 144px;
  height: 144px;
  overflow: hidden;
  border: 2px solid #de4444;
  border-radius: 8px;

  .strockplayRedInner {
    width: 100%;
    height: 100%;
  }
}

.left-content .footer {
  display: flex;
  align-items: center;
  width: 100%;
  cursor: pointer;

  .bg-box {
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 76px;
    height: 32px;
    padding: 4px 8px;
    font-size: 16px;
    line-height: 150%;
    color: #000;
    text-align: center;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 10%);
    border-radius: 4px;

    img {
      width: 24px;
      height: 24px;
      margin: 0;
    }
  }

  .practice-icon {
    height: 36px;
    margin-top: 12px;
  }

  > span {
    margin-bottom: 9px;
    font-size: 24px;
    font-weight: 600;
    line-height: 34px;
    color: #ba7d21;
    text-align: center;
  }
}

.el-tabs {
  width: 100%;
}
</style>
<style lang="scss">
.practiceSingleNPC {
  .el-tabs--border-card > .el-tabs__header .el-tabs__item.is-active {
    color: #000;
  }

  .el-tabs--border-card > .el-tabs__header .el-tabs__item:not(.is-disabled):hover {
    color: #000;
  }

  .el-tabs__item,
  .el-tabs--border-card > .el-tabs__header .el-tabs__item {
    width: 80px;
    height: 48px;
    font-size: 16px;
    font-weight: normal;
    line-height: 48px;
    color: #000;
    text-align: center;
    border: none;
  }

  .el-tabs--border-card > .el-tabs__header {
    background: #f3f3f3;
    border: none;
  }

  .el-tabs--border-card > .el-tabs__content {
    padding: 0;
  }

  .el-tab-pane {
    display: flex;
  }
}
</style>