在父级中包含可拖动的div

时间：2018-08-25 22:33:17

标签： javascript html css

我正在研究游戏速度雷达。我希望它在屏幕上可拖动。我发现以下适用于我的Javascript：

https://www.w3schools.com/howto/howto_js_draggable.asp

我将其实现为游戏中雷达的代码，并且效果很好。唯一的事情是我可以将其拖离屏幕。现在，我想限制雷达始终显示在屏幕上。这是我的雷达现场演示：

http://jsfiddle.net/E2Mfa/67/ 

<html>
    <head>
    </head>

    <body>
        <div id="fullcontainer">
        <div id="policeradar">
        <!-- <div id="policeradar"> -->
            <div id="policeradarheader">
                <div class="antennalabel antennalabeltop">Front Antenna</div>

                <div class="logo">WraithRS</div>

                <div class="main">
                    <div class="container">
                        <div class="typecontainer">
                            <div class="text"><span class="fwdsame">SAME</span></div>
                            <div class="text"><span class="fwdopp">OPP</span></div>
                            <div class="text"><span class="fwdxmit">XMIT</span></div>
                        </div>

                        <div class="typecontainer">
                            <div class="text"><span class="bwdsame">SAME</span></div>
                            <div class="text"><span class="bwdopp">OPP</span></div>
                            <div class="text"><span class="bwdxmit">XMIT</span></div>
                        </div>
                    </div>

                    <div class="container">
                        <div class="patrolcontainer">
                            <div class="speedsourcecontainer target" data-target="fwdspeed">
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                            </div>

                            <div class="label">FWD</div>
                        </div>

                        <div class="patrolcontainer">
                            <div class="speedsourcecontainer target" data-target="bwdspeed">
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                            </div>

                            <div class="label">BWD</div>
                        </div>
                    </div>

                    <div class="container" style="width: 5px;">
                        <div class="arrowbox">
                            <i class="fa fa-arrow-up fwdarrowfront"></i>
                            <i class="fa fa-arrow-down fwdarrowback"></i>
                        </div>

                        <div class="arrowbox">
                            <i class="fa fa-arrow-up bwdarrowfront"></i>
                            <i class="fa fa-arrow-down bwdarrowback"></i>
                        </div>
                    </div>

                    <div class="container">
                        <div class="patrolcontainer" style="margin-top: 20px;">
                            <div class="speedfastcontainer target" data-target="fwdfast">
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                            </div>

                            <div class="label">FWD FAST</div>
                        </div>

                        <div class="patrolcontainer" style="margin-bottom: 20px;">
                            <div class="speedfastcontainer target" data-target="bwdfast">
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                            </div>

                            <div class="label">BWD FAST</div>
                        </div>
                    </div>

                    <div class="container">
                        <div class="patrolcontainer">
                            <div class="speedfastcontainer patrol" data-target="patrolspeed">
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                                <div class="speednumber text"></div>
                            </div>

                            <div class="label">PATROL SPEED</div>
                        </div>
                    </div>      
                </div>

                <div class="antennalabel antennalabelbottom">Rear Antenna</div>
            </div>
        </div>




        <div id="policeradarrc" style="display: none;">
            <div class="container">
                <button class="toggle" data-action="radar_toggle">TOGGLE RADAR</button>
            </div>

            <div class="label">FRONT ANTENNA</div>

            <div class="container">
                <button class="rowbutton frontopp" data-action="radar_frontopp">OPP</button>
                <button class="rowbutton frontxmit" data-action="radar_frontxmit">XMIT</button>
                <button class="rowbutton frontsame" data-action="radar_frontsame">SAME</button>
            </div>

            <div class="breakline"></div>

            <div class="container">
                <button class="rowbutton rearopp" data-action="radar_rearopp">OPP</button>
                <button class="rowbutton rearxmit" data-action="radar_rearxmit">XMIT</button>
                <button class="rowbutton rearsame" data-action="radar_rearsame">SAME</button>
            </div>

            <div class="label">REAR ANTENNA</div>

            <div class="container">
                <button class="limit" data-action="radar_setlimit">SET FAST LIMIT</button>
            </div>

            <div class="container">
                <button class="limit" data-action="radar_speedtype" style="margin-top: 0px;">TOGGLE SPEED TYPE</button>
            </div>

            <div class="container">
                <button class="close" data-action="close">CLOSE</button>
            </div>
        </div>
    </div>
        <script>
            dragElement(document.getElementById("policeradar"));

            function dragElement(elmnt) {
              var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
              if (document.getElementById(elmnt.id + "header")) {
                document.getElementById(elmnt.id + "header").onmousedown = dragMouseDown;
              } else {
                elmnt.onmousedown = dragMouseDown;
              }

              function dragMouseDown(e) {
                e = e || window.event;
                e.preventDefault();
                pos3 = e.clientX;
                pos4 = e.clientY;
                document.onmouseup = closeDragElement;
                document.onmousemove = elementDrag;
              }

              function elementDrag(e) {
                e = e || window.event;
                e.preventDefault();
                pos1 = pos3 - e.clientX;
                pos2 = pos4 - e.clientY;
                pos3 = e.clientX;
                pos4 = e.clientY;
                elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
                elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
              }

              function closeDragElement() {
                document.onmouseup = null;
                document.onmousemove = null;
              }
            }
        </script>
    </body>
</html>

    html, body {
    overflow:hidden;
    max-width: 100%;
    max-height: 100%;
    display: block;
    flex-direction: column;
}

@font-face {
    font-family: "Digital-7";
    src: url( "digital-7.regular.ttf" );
}
#fullcontainer {
  height: 100%;
  width: 100%;
}

#policeradar {
    width: 495px;
    height: 202px;
    position: absolute;
    margin: 0;
    z-index: 9; 
    color: white;
    padding: 10px;
    background: rgba( 20, 20, 20, 0.97 );
    background: linear-gradient( to bottom, rgb( 50, 50, 50 ), rgb( 25, 25, 25 ) );
    border-radius: 10px;
    display: flex;
    flex-direction: column; 
    justify-content: space-around;
    align-items: center;
}

#policeradarheader {
    width: 495px;
    height: 202px;
    position: absolute;
    padding: 10px;
    cursor: move;
    z-index: 10;
    color: #fff;
}

#policeradar .antennalabel {
    font-family: Verdana; 
    font-size: 14px;
    font-weight: bold; 
    text-align: center; 
    width: 100%; 
    position: absolute;
}

#policeradar .antennalabeltop {
    top: 0;
    left: 0;
    padding-top: 5px;
}

#policeradar .antennalabelbottom {
    bottom: 0;
    left: 0;
    padding-bottom: 5px;
}

#policeradar .logo {
    font-family: Verdana; 
    font-size: 17px;
    font-weight: bold; 
    bottom: 15px;
    right: 20px;
    position: absolute;
}

#policeradar .main {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-around;
    width: 100%;
    height: 100%; 
}

#policeradar .patrolcontainer {
    background-color: black;
    display: flex;
    flex-direction: column; 
    align-items: center; 
    justify-content: flex-start; 
}

#policeradar .typecontainer {
    background-color: black;
    display: flex;
    flex-direction: column; 
    align-items: center; 
    justify-content: flex-start; 
    width: 0;
}

#policeradar .typecontainer .text {
    font-family: Verdana;
    font-size: 10px;
    line-height: 27px;
    margin-left: 13px;
    color: black; 
}

#policeradar .typecontainer .active {
    color: white; 
}

#policeradar .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%; 
    justify-content: space-around; 
}

#policeradar .arrowbox {
    justify-content: center; 
    align-items: center;
}

#policeradar .arrowbox i {
    font-size: 20px; 
    padding-top: 5px;
    padding-bottom: 5px;
    color: black;
}

#policeradar .arrowbox .active {
    color: white; 
}

#policeradar .arrowbox .inactive {
    color: black;
}

#policeradar .container .label {
    font-family: Verdana;
    font-weight: bold; 
    font-size: 10px;
    text-align: center;
}

#policeradar .container .speedsourcecontainer {
    width: 135px;
    height: 58px;
    display: flex;
    justify-content: space-around;
}

#policeradar .container .speedsourcecontainer .speednumber {
    width: 100%;
}

#policeradar .container .speedsourcecontainer .text {
    font-family: "Digital-7";
    font-size: 58px;
    line-height: 58px;
    width: 100%;
    text-align: center;
}

#policeradar .container .target {
    background: rgb( 200, 0, 0 );
    background: linear-gradient( to bottom, rgb( 220, 0, 40 ), rgb( 90, 0, 0 ) );
}

#policeradar .container .patrol {
    background: rgb( 0, 125, 0 );
    background: linear-gradient( to bottom, rgb( 0, 150, 0 ), rgb( 0, 75, 0 ) );
}

#policeradar .container .locked {
    color: rgb( 50, 0, 0 );
}

#policeradar .container .speedfastcontainer {
    width: 99px;
    height: 50px;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}

#policeradar .container .speedfastcontainer .speednumber {
    width: 100%;
}

#policeradar .container .speedfastcontainer .text {
    font-family: "Digital-7";
    font-size: 50px;
    line-height: 50px;
    width: 100%;
    text-align: center;
}


/* Police Radar - Remote Control */
#policeradarrc {
    width: 290px;
    height: 350px;

    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    padding: 10px 5px;

    color: white;
    background-color: rgba( 20, 20, 20, 0.95 );
    border-radius: 5px;

    display: flex;
    flex-direction: column; 
    justify-content: space-around;
    align-items: center;
}

#policeradarrc .breakline {
    width: 230px;
    height: 10px;
    background-color: white; 
}

#policeradarrc .label {
    font-family: Verdana; 
}

#policeradarrc .container {
    font-family: Verdana; 
    align-items: center; 
}

#policeradarrc .container button {
    display: inline-block;
    cursor: pointer;
    text-decoration: none;
    outline: none;
    border: none;
}

#policeradarrc .container button:hover {
    background-color: #6cd3f9;
}

#policeradarrc .container button:active {
    background-color: #56a8c7;
}

#policeradarrc .container .toggle {
    padding: 5px 15px;
    font-size: 16px;
    text-align: center;
    color: black;
    background-color: white;
    border-radius: 15px;
    margin-bottom: 15px;
}

#policeradarrc .container .limit {
    padding: 5px 15px;
    font-size: 16px;
    text-align: center;
    color: black;
    background-color: white;
    border-radius: 15px;
    margin-top: 15px;
}

#policeradarrc .container .close {
    padding: 3px 7px;
    font-size: 12px;
}

#policeradarrc .container .rowbutton {
    width: 60px;
    height: 60px; 
}

#policeradarrc .container .frontopp {
    border-top-left-radius: 50%;
}

#policeradarrc .container .frontsame {
    border-top-right-radius: 50%;
}

#policeradarrc .container .rearopp {
    border-bottom-left-radius: 50%;
}

#policeradarrc .container .rearsame {
    border-bottom-right-radius: 50%;
}

我尝试了很多东西，但似乎无法弄清

问候！

0 个答案:

没有答案
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