ui/webui/resources/images/throbber.svg

   1 <svg version="1" xmlns="http://www.w3.org/2000/svg"
   2                  xmlns:xlink="http://www.w3.org/1999/xlink"
   3      width="16px" height="16px" viewBox="0 0 28 28">
   4   <!-- 28= RADIUS*2 + STROKEWIDTH -->
   5
   6   <title>Material design circular activity spinner with CSS3 animation</title>
   7   <style type="text/css">
   8       /**************************/
   9       /* STYLES FOR THE SPINNER */
  10       /**************************/
  11
  12       /*
  13        * Constants:
  14        *      RADIUS      = 12.5
  15        *      STROKEWIDTH = 3
  16        *      ARCSIZE     = 270 degrees (amount of circle the arc takes up)
  17        *      ARCTIME     = 1333ms (time it takes to expand and contract arc)
  18        *      ARCSTARTROT = 216 degrees (how much the start location of the arc
  19        *                                should rotate each time, 216 gives us a
  20        *                                5 pointed star shape (it's 360/5 * 2).
  21        *                                For a 7 pointed star, we might do
  22        *                                360/7 * 3 = 154.286)
  23        *
  24        *      SHRINK_TIME = 400ms
  25        */
  26
  27       .qp-circular-loader {
  28         width:28px;  /* 2*RADIUS + STROKEWIDTH */
  29         height:28px; /* 2*RADIUS + STROKEWIDTH */
  30       }
  31       .qp-circular-loader-path {
  32         stroke-dasharray: 58.9;  /* 2*RADIUS*PI * ARCSIZE/360 */
  33         stroke-dashoffset: 58.9; /* 2*RADIUS*PI * ARCSIZE/360 */
  34                                  /* hides things initially */
  35       }
  36
  37       /* SVG elements seem to have a different default origin */
  38       .qp-circular-loader, .qp-circular-loader * {
  39         -webkit-transform-origin: 50% 50%;
  40       }
  41
  42       /* Rotating the whole thing */
  43       @-webkit-keyframes rotate {
  44         from {-webkit-transform: rotate(0deg);}
  45         to {-webkit-transform: rotate(360deg);}
  46       }
  47       .qp-circular-loader {
  48         -webkit-animation-name: rotate;
  49         -webkit-animation-duration: 1568.63ms; /* 360 * ARCTIME / (ARCSTARTROT + (360-ARCSIZE)) */
  50         -webkit-animation-iteration-count: infinite;
  51         -webkit-animation-timing-function: linear;
  52       }
  53
  54       /* Filling and unfilling the arc */
  55       @-webkit-keyframes fillunfill {
  56         from {
  57           stroke-dashoffset: 58.8 /* 2*RADIUS*PI * ARCSIZE/360 - 0.1 */
  58                                   /* 0.1 a bit of a magic constant here */
  59         }
  60         50% {
  61           stroke-dashoffset: 0;
  62         }
  63         to {
  64           stroke-dashoffset: -58.4 /* -(2*RADIUS*PI * ARCSIZE/360 - 0.5) */
  65                                    /* 0.5 a bit of a magic constant here */
  66         }
  67       }
  68       @-webkit-keyframes rot {
  69         from {
  70           -webkit-transform: rotate(0deg);
  71         }
  72         to {
  73           -webkit-transform: rotate(-360deg);
  74         }
  75       }
  76       @-webkit-keyframes colors {
  77         from {
  78           stroke: #4285f4;
  79         }
  80         to {
  81           stroke: #4285f4;
  82         }
  83       }
  84       .qp-circular-loader-path {
  85         -webkit-animation-name: fillunfill, rot, colors;
  86         -webkit-animation-duration: 1333ms, 5332ms, 5332ms; /* ARCTIME, 4*ARCTIME, 4*ARCTIME */
  87         -webkit-animation-iteration-count: infinite, infinite, infinite;
  88         -webkit-animation-timing-function: cubic-bezier(0.4, 0.0, 0.2, 1), steps(4), linear;
  89         -webkit-animation-play-state: running, running, running;
  90         -webkit-animation-fill-mode: forwards;
  91       }
  92
  93   </style>
  94
  95   <!-- 3= STROKEWIDTH -->
  96   <!-- 14= RADIUS + STROKEWIDTH/2 -->
  97   <!-- 12.5= RADIUS -->
  98   <!-- 1.5=  STROKEWIDTH/2 -->
  99   <!-- ARCSIZE would affect the 1.5,14 part of this... 1.5,14 is specific to
 100        270 degress -->
 101   <g class="qp-circular-loader">
 102     <path class="qp-circular-loader-path" fill="none"
 103           d="M 14,1.5 A 12.5,12.5 0 1 1 1.5,14" stroke-width="3"
 104           stroke-linecap="round"></path>
 105   </g>
 106 </svg>