国标GB28181协议视频平台EasyGBS二次开发过程中如何使用录像轴组件？

国标平台EasyGBS支持用户根据自己的需求自由进行二次开发，即便是试用版本也支持调用二次开发接口，接口丰富全面，可以满足大多数用户的需求。

本文我们要讲的是二次开发中的录像轴组件，由于有用户问到，所以讲一下这个组件是怎么使用的。

1.在项目导入PlayTimeAxis.vue组件

import PlayTimeAxis from "./PlayTimeAxis.vue";
  
export default {
  components: {
    PlayTimeAxis
  }
}

2.在项目中引入PlayTimeAxis组件。组件中有两个属性videos是用来接收录像段，然后展示接收到对应的时间段录像。timeChange是返回点击某一点时间的回调。
videos需要传入一个数组对象，格式如下：

let videos = [{
          currentVideoIndex: 0,
          dayTime: "20210603",
          duration: 9367,
          endAt: "2021-06-03T02:37:29",
          hmsTime: "0:1:22",
          startAt: "2021-06-03T00:01:22",
        }]
timeChange会返回一个对象，格式如下：
    onTimeChange(data) {
      //data 的数据格式
      // {
      //   currentTime: 862,
      //   currentVideoIndex: 20,
      //   dayTime: "20210606",
      //   duration: 1127,
      //   endAt: "2021-06-06T11:42:25",
      //   hmsTime: "11:23:38",
      //   startAt: "2021-06-06T11:23:38",
      // }
    }
  
<PlayTimeAxis :videos="videos" @timeChange="onTimeChange">
</PlayTimeAxis>

PlayTimeAxis.vue组件完整代码：

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<template>
    <div class="time-rule">
        <div class="time-day" ref="day" :style="{ left: timeDayX + 'px'}">
            <div :class="['time-minute', minuteActiveClass(n - 1)]" :title="minuteTitle(n - 1)" v-for="n in 1440"
                 :key="n"
                 @click.prevent="clickMinute(n - 1)"></div>
            <div :class="[ n==1 ? 'time-text-first' : 'time-text']" v-for="n in 24" :key="n">{{hourText(n - 1)}}</div>
        </div>
        <div class="time-cursor" :style="{ left: timeCursorX + 'px'}" ref="cursor">
            <div class="time-cursor-text">{{timeCursorText}}</div>
        </div>
    </div>
</template>
  
<script>
    import moment from 'moment'
  
    export default {
        data() {
            return {
                timeCursorX: 0,
                timeDayX: 0,
                bMoving: false,
            }
        },
        props: {
            videos: {
                type: Array,
                default: []
            }
        },
        mounted() {
  
            let cursor = this.$refs.cursor;
            let day = this.$refs.day;
            let rule = this.$el;
            let _this = this;
  
            function moveCursor(e) {
                let originPageX = $(cursor).data("originPageX");
                let dx = e.pageX - originPageX;
                _this.timeCursorX = $(cursor).position().left + dx;
                $(cursor).data("originPageX", e.pageX);
            }
  
            function touchMoveCursor(e) {
                let touch = e.originalEvent.targetTouches[0];
                let originPageX = $(cursor).data("originPageX");
                let dx = touch.pageX - originPageX;
                _this.timeCursorX = $(cursor).position().left + dx;
                $(cursor).data("originPageX", touch.pageX);
            }
  
            function moveDay(e) {
                let originPageX = $(day).data("originPageX");
                let dx = e.pageX - originPageX;
                _this.timeDayX = $(day).position().left + dx;
                $(day).data("originPageX", e.pageX);
            }
  
            function touchMoveDay(e) {
                let touch = e.originalEvent.targetTouches[0];
                let originPageX = $(day).data("originPageX");
                let dx = touch.pageX - originPageX;
                _this.timeDayX = $(day).position().left + dx;
                $(day).data("originPageX", touch.pageX);
            }
  
            $(cursor).on("mousedown", function (e) {
                $(cursor).data("originPageX", e.pageX);
                _this.bMoving = true;
                $(document).on("mousemove", moveCursor).one("mouseup", function (e) {
                    $(document).off("mousemove", moveCursor);
                    $(cursor).removeData("originPageX");
                    _this.triggerTimeChange();
                    _this.bMoving = false;
                })
            }).on("touchstart", function (e) {
                let touch = e.originalEvent.targetTouches[0];
                $(cursor).data("originPageX", touch.pageX);
                _this.bMoving = true;
                $(document).on("touchmove", touchMoveCursor).one("touchend", function (e) {
                    $(document).off("touchmove", touchMoveCursor);
                    $(cursor).removeData("originPageX");
                    _this.triggerTimeChange();
                    _this.bMoving = false;
                })
            })
            $(day).on("mousedown", function (e) {
                $(day).data("originPageX", e.pageX);
                _this.bMoving = true;
                $(document).on("mousemove", moveDay).one("mouseup", function (e) {
                    $(document).off("mousemove", moveDay);
                    $(day).removeData("originPageX");
                    _this.triggerTimeChange(1);
                    _this.bMoving = false;
                })
            }).on("touchstart", function (e) {
                let touch = e.originalEvent.targetTouches[0];
                $(day).data("originPageX", touch.pageX);
                _this.bMoving = true;
                $(document).on("touchmove", touchMoveDay).one("touchend", function (e) {
                    $(document).off("touchmove", touchMoveDay);
                    $(day).removeData("originPageX");
                    _this.triggerTimeChange();
                    _this.bMoving = false;
                })
            })
  
        },
        watch: {
            videos: function (val) {
                this.triggerTimeChange();
            }
        },
        methods: {
            hourText(n) {
                let h = moment().hour(n).minute(0).second(0);
                return h.format("HH:mm");
            },
            minuteActiveClass(n) {
                let m = moment().hour(0).minute(n);
                let mtext = m.format("HH:mm");
                return Object.keys(this.activeMinutes).indexOf(mtext) >= 0 ? "active" : "";
            },
            minuteTitle(n) {
                let m = moment().hour(0).minute(n);
                let mtext = m.format("HH:mm");
                return Object.keys(this.activeMinutes).indexOf(mtext) >= 0 ? mtext : "";
            },
            clickMinute(n, bTrigger = true) {
                if (this.bMoving) return;
                this.timeCursorX = n + this.timeDayX;
                if (bTrigger) {
                    this.triggerTimeChange();
                }
            },
            dataTime(value) { //'01:01:60' out:Number
                let arr = value.split(':').map((i) => {
                    return +i
                });
                return ((arr[0] * 60 * 60) + (arr[1] * 60) + (arr[2]));
            },
            triggerTimeChange(r) {
                if (r === 1) return
                this.$emit("timeChange", this.activeMinutes[this.timeCursorText]);
            }
        },
        computed: {
            timeCursorText() {
                if (this.timeCursorX >= $(this.$el).innerWidth()) {
                    this.timeCursorX = $(this.$el).innerWidth() - 1;
                }
                if (this.timeCursorX < 0) {
                    this.timeCursorX = 0;
                }
                if (this.timeDayX < $(this.$el).innerWidth() - $(this.$refs.day).outerWidth()) {
                    this.timeDayX = $(this.$el).innerWidth() - $(this.$refs.day).outerWidth();
                }
                if (this.timeDayX > 0) {
                    this.timeDayX = 0;
                }
                if (this.timeCursorX - this.timeDayX >= 1440) {
                    this.timeDayX = $(this.$el).innerWidth() - $(this.$refs.day).outerWidth();
                    this.timeCursorX = $(this.$el).innerWidth() - 1;
                }
                if (this.timeCursorX === 0) {
                    let lenTx = this.videos.length
                    if (lenTx !== 0) {
                        lenTx = lenTx - 1
                        let strTx = this.videos[lenTx].endAt
                        strTx = strTx.substring(strTx.length - 8);
                        let entTx = this.dataTime(strTx)
                        this.timeCursorX = entTx * 100 / 6000 - 60000
                    }
                }
                var m = moment().hour(0).minute(this.timeCursorX - this.timeDayX);
                return m.format("HH:mm");
            },
            activeMinutes() {
                let minutes = {};
                for (let video of this.videos) {
                    let m = moment(video.startAt, "YYYYMMDDHHmmss");
                    let s = parseInt(video.duration);
                    if (s > 8640000) {
                        this.$message({
                            type: 'error',
                            message: "录像" + video.start_time + "时间戳错误"
                        })
                        continue
                    }
                    let mtext = m.format("HH:mm");
                    minutes[mtext] = Object.assign({
                        currentTime: 0
                    }, video);
                    for (let i = 1; i <= s; i++) {
                        m.add(1, "seconds");
                        let _mtext = m.format("HH:mm");
                        if (_mtext != mtext) {
                            mtext = _mtext;
                            minutes[mtext] = Object.assign({
                                currentTime: i
                            }, video);
                        }
                    }
                }
                return minutes;
            }
        }
    }
  
</script>
  
<style lang="less" scoped>
  
    .time-rule {
        overflow: hidden;
        position: relative;
        height: 50px;
        margin: 0 auto;
        width: 100%;
        font-size: 12px;
        max-width: 1440px;
        background-color: #e5e5e5;
    }
  
    .time-day {
        position: absolute;
        left: 0;
        top: 0;
        height: 100%;
        width: 1440px;
        cursor: pointer;
        -ms-user-select: none;
        user-select: none;
    }
  
    .time-minute {
        float: left;
        width: 1px;
        height: 8px;
        margin: 0;
        cursor: default;
    }
  
    .time-minute.active {
        background-color: red;
        cursor: pointer;
    }
  
    .time-text {
        float: left;
        width: 60px;
        border-left: 1px solid #999;
        border-top: 1px solid #999;
        box-sizing: border-box;
        -ms-user-select: none;
        user-select: none;
        text-align: center;
        height: 25px;
        line-height: 25px;
    }
  
    .time-text-first  {
    .time-text;
        border-left: 0;
    }
  
    .time-cursor {
        position: absolute;
        left: 0;
        top: 0;
        height: 30px;
        width: 2px;
        background-color: red;
        text-align: center;
    }
  
    .time-cursor-text {
        position: absolute;
        padding: 0 5px;
        width: 60px;
        left: -30px;
        top: 30px;
        border: 1px solid red;
        height: 15px;
        line-height: 15px;
        cursor: move;
        background-color: white;
        -ms-user-select: none;
        user-select: none;
    }
  
</style>

posted on 2021-06-16 10:08 EasyGBS 阅读(91) 评论(0) 编辑收藏举报

国标GB28181协议视频平台EasyGBS二次开发过程中如何使用录像轴组件？

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