From 7ac93841d69f533c9ada9c19dc3ba9dc6af50bdc Mon Sep 17 00:00:00 2001
From: virusdefender <1670873886@qq.com>
Date: Fri, 11 Sep 2015 18:21:28 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E6=B5=8F=E8=A7=88=E5=99=A8?=
 =?UTF-8?q?=E6=98=AF=E5=90=A6=E6=94=AF=E6=8C=81=20flash=20=E7=9A=84?=
 =?UTF-8?q?=E5=88=A4=E6=96=AD=EF=BC=8C=E5=A4=8D=E5=88=B6=E6=8F=92=E4=BB=B6?=
 =?UTF-8?q?=E4=BE=9D=E8=B5=96=20Flash?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 static/src/js/app/oj/problem/problem.js | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/static/src/js/app/oj/problem/problem.js b/static/src/js/app/oj/problem/problem.js
index 360569c..e34daea 100644
--- a/static/src/js/app/oj/problem/problem.js
+++ b/static/src/js/app/oj/problem/problem.js
@@ -6,9 +6,26 @@ require(["jquery", "codeMirror", "csrfToken", "bsAlert", "ZeroClipboard"],
             return;
         }
 
-        // 提供点击复制到剪切板的功能
-        ZeroClipboard.config({swfPath: "/static/img/ZeroClipboard.swf"});
-        new ZeroClipboard($(".copy-sample"));
+        // 复制样例需要 Flash 的支持 检测浏览器是否安装了 Flash
+        function detect_flash() {
+            var ie_flash;
+            try {
+                ie_flash = (window.ActiveXObject && (new ActiveXObject("ShockwaveFlash.ShockwaveFlash")) !== false)
+            } catch (err) {
+                ie_flash = false;
+            }
+            var _flash_installed = ((typeof navigator.plugins != "undefined" && typeof navigator.plugins["Shockwave Flash"] == "object") || ie_flash);
+            return _flash_installed;
+        }
+
+        if(detect_flash()) {
+            // 提供点击复制到剪切板的功能
+            ZeroClipboard.config({swfPath: "/static/img/ZeroClipboard.swf"});
+            new ZeroClipboard($(".copy-sample"));
+        }
+        else{
+            $(".copy-sample").hide();
+        }
 
         var codeEditor = codeMirror(codeEditorSelector, "text/x-csrc");
         var language = $("input[name='language'][checked]").val();
@@ -186,4 +203,4 @@ require(["jquery", "codeMirror", "csrfToken", "bsAlert", "ZeroClipboard"],
                 }
             }
         })
-    });
+    });
\ No newline at end of file