init

2026-08-12 20:31:40 +08:00 · 2018-07-18 03:38:56 +08:00
commit e7ea6ce581
24 changed files with 3013 additions and 0 deletions
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="UTF-8">
+	<meta name="viewport" content="width=device-width, initial-scale=1.0">
+	<meta http-equiv="X-UA-Compatible" content="ie=edge">
+	<title>qrcode-decode</title>
+</head>
+<body>
+	<input type="file" name="file" id="file"><br>
+	<div></div>
+</body>
+<script type="text/javascript" src="test.js"></script>
+</html>
@@ -0,0 +1,40 @@
+var qrcodeDecode = require('../')
+
+document.getElementById('file').onchange = function (event) {
+	var el = event.target;
+	if (!el.files.length) return;
+	// console.log(el.files[0]);
+	var file = el.files[0];
+	new Promise(function (ok, no) {
+			/* if(window.URL && window.URL.createObjectURL){ //缓存预览
+				ok(window.URL.createObjectURL(file));
+			}else  */ 
+		if (typeof FileReader) {
+			//urldata预览
+			var reader = new FileReader();
+			reader.onload = evt => {
+				ok(evt.target.result);
+			};
+			reader.readAsDataURL(file);
+		} else {
+			ok();
+		}
+	}).then((src)=>{
+		var img = new Image();
+		img.src = src;
+		img.onload = function(){
+			var canvas = document.createElement("canvas");
+			var ctx = canvas.getContext('2d');
+			canvas.width = img.width;
+			canvas.height = img.height;
+			ctx.drawImage(img,0,0,canvas.width,canvas.height)
+			//inputimg.src = src;
+			//qrcode.decode(src);
+			var imageData = ctx.getImageData(0,0,canvas.width,canvas.height)
+			alert(qrcodeDecode(imageData));
+		}
+
+	});
+
+	//el.outerHTML = el.outerHTML;
+}