YellowCow/posts.html at master · atomic/YellowCow · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Post a Graffiti</title>

    <!--
    https://developers.google.com/speed/libraries/
    links: https://connieguan.github.io/YellowCow/
                NOTE:
                this index.html is for prototyping front-end,
                TODO: apply stuff from here to view/post.hbs
    -->
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>

    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.3/dist/leaflet.css" />
    <link rel="stylesheet" type="text/css" href="css/styles.css" />
    <script src="https://unpkg.com/leaflet@1.0.3/dist/leaflet.js"></script>

    <!--
    <script src="http://www.nihilogic.dk/labs/exif/exif.js"
       type="text/javascript"></script>
<script src="http://www.nihilogic.dk/labs/binaryajax/binaryajax.js"
       type="text/javascript"></script>
    -->

</head>
<body>

    <div class="navbar navbar-default" role="navigation">
       <div class="container">
         <div class="navbar-header">
          <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavBar">
           <span class="sr-only">Toggle navigation</span>
           <span class="icon-bar"></span>
           <span class="icon-bar"></span>
           <span class="icon-bar"></span>
         </button>
       </div>
       <div class="collapse navbar-collapse" id="myNavBar">
         <ul class="nav navbar-nav">
           <li><a href="index.html">Pintura Catalog</a></li>
           <li><a href="map.html">Map</a></li>
           <li class="active"><a href="#">Post A Pintura!</a></li>
           <li><a href="#">Help</a></li>
           <li><a href="#">Log Out</a></li>
         </ul>
       </div>
     </div>
    </div>

    <h3>Post A Pintura!</h3>

   <div style="width: 0; height: 0; overflow: hidden;">
   <!-- <input id="PhotoPicker" type="file" accept="image/*"> -->
   </div>

   <input type="file" id="PhotoPicker">
<!--
<button class="lovely" id="PhotoButton">
  1. Select Photo
</button>

<button id="upload">Upload</button>
-->
   <canvas id="myCanvas" onmousemove="keepLine()" onmouseup="drawLine()" onmousedown="startLine()" width="900" height="600" style="background-color:#ffffff;cursor:default; style="border:1px solid";">
   <!-- <canvas id="myCanvas" width="490" height="220" style="border:1px solid";></canvas> -->

</body>

<script>
    // Scripts for the canvas drawing
    context = $('#myCanvas')[0].getContext("2d");
    $('#myCanvas').mousedown(function(e){
      var mouseX = e.pageX - this.offsetLeft;
      var mouseY = e.pageY - this.offsetTop;

      paint = true;
      addClick(e.pageX - this.offsetLeft, e.pageY - this.offsetTop);
      redraw();
    });
    $('#myCanvas').mousemove(function(e){
      if(paint){
        addClick(e.pageX - this.offsetLeft, e.pageY - this.offsetTop, true);
        redraw();
      }
    });
    $('#myCanvas').mouseup(function(e){
      paint = false;
    });
    $('#myCanvas').mouseleave(function(e){
      paint = false;
    });
    var clickX = new Array();
    var clickY = new Array();
    var clickDrag = new Array();
    var paint;

    function addClick(x, y, dragging)
    {
      clickX.push(x);
      clickY.push(y);
      clickDrag.push(dragging);
    }

    function redraw(){
      //context.clearRect(0, 0, context.canvas.width, context.canvas.height); // Clears the canvas

      context.strokeStyle = "#df4b26";
      context.lineJoin = "round";
      context.lineWidth = 5;

      for(var i=0; i < clickX.length; i++) {
        context.beginPath();
        if(clickDrag[i] && i){
          context.moveTo(clickX[i-1], clickY[i-1]);
         }else{
           context.moveTo(clickX[i]-1, clickY[i]);
         }
         context.lineTo(clickX[i], clickY[i]);
         context.closePath();
         context.stroke();
      }
    }


//End Scripts for canvas drawing

//access image file when uploaded

        $('#PhotoButton').click(function() {
            $('#PhotoPicker').trigger('click');
            return false;
        });

        $('#PhotoPicker').on('change', function(e) {

            e.preventDefault();
            if(this.files.length === 0) return;

            function el(id){return document.getElementById(id);} // Get elem by ID

            var canvas  = el("myCanvas");
            var context = canvas.getContext("2d");

            var tf = this.files;

            function readImage(theFile) {
                if ( theFile && theFile[0] ) {
                    var FR= new FileReader();
                    FR.onload = function(e) {
                       var img = new Image();
                       img.onload = function() {
                         context.drawImage(img, 0, 0, img.width, img.height, 0, 0, canvas.width, canvas.height);
                       };
                       img.src = e.target.result;
                    };
                    FR.readAsDataURL( theFile[0] );
                }
            }

            el("PhotoPicker").addEventListener("change", readImage(tf), false);
          });

        /*
        $('#PhotoPicker').on('change', function(e) {
            e.preventDefault();
            if(this.files.length === 0) return;
            var imageFile = this.files[0];
            var img = new Image();
            var url = window.URL ? window.URL : window.webkitURL;
            img.src = url.createObjectURL(imageFile);
            img.onload = function(e) {
                url.revokeObjectURL(this.src);
                var width;
                var height;
                var binaryReader = new FileReader();
                binaryReader.onloadend=function(d) {
                    var exif, transform = "none";
                    exif=EXIF.readFromBinaryFile(createBinaryFile(d.target.result));
                    if(exif.Orientation === 8) {
                        width = img.height;
                        height = img.width;
                        transform = "left";
                    } else if(exif.Orientation === 6) {
                        width = img.height;
                        height = img.width;
                        transform = "right";
                    } else if(exif.Orientation === 1) {
                        width = img.width;
                        height = img.height;
                    } else if(exif.Orientation === 3) {
                        width = img.width;
                        height = img.height;
                        transform = "flip";
                    } else {
                        width = img.width;
                        height = img.height;
                    }
                    var MAX_WIDTH = 700;
                    var MAX_HEIGHT = 600;
                    if (width/MAX_WIDTH > height/MAX_HEIGHT) {
                        if (width > MAX_WIDTH) {
                            height *= MAX_WIDTH / width;
                            width = MAX_WIDTH;
                        }
                    } else {
                        if (height > MAX_HEIGHT) {
                            width *= MAX_HEIGHT / height;
                            height = MAX_HEIGHT;
                        }
                    }
                    var canvas = $('#myCanvas')[0];
                    canvas.width = width;
                    canvas.height = height;
                    var ctx = canvas.getContext("2d");
                    ctx.fillStyle = 'white';
                    ctx.fillRect(0, 0, canvas.width, canvas.height);
                    if(transform === 'left') {
                        ctx.setTransform(0, -1, 1, 0, 0, height);
                        ctx.drawImage(img, 0, 0, height, width);
                    } else if(transform === 'right') {
                        ctx.setTransform(0, 1, -1, 0, width, 0);
                        ctx.drawImage(img, 0, 0, height, width);
                    } else if(transform === 'flip') {
                        ctx.setTransform(1, 0, 0, -1, 0, height);
                        ctx.drawImage(img, 0, 0, width, height);
                    } else {
                        ctx.setTransform(1, 0, 0, 1, 0, 0);
                        ctx.drawImage(img, 0, 0, width, height);
                    }
                    ctx.setTransform(1, 0, 0, 1, 0, 0);
                };
                binaryReader.readAsArrayBuffer(imageFile);
            };
        });

        */
        $('#upload').click(function() {
            var canvas = $('#myCanvas')[0];
            var ctx = canvas.getContext("2d");
            ctx.drawImage(img);
            var data = canvas.toDataURL('image/png');
            return false;
        });

</script>