From 17950a3254f2367dea76f978c6e862341ce50306 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期一, 25 四月 2022 17:50:08 +0800
Subject: [PATCH] 代码生成预览支持复制内容

---
 src/directive/common/copyText.js |   66 +++++++++++++++++++++++++++++++++
 src/directive/index.js           |    2 +
 src/views/tool/gen/index.vue     |    5 ++
 3 files changed, 73 insertions(+), 0 deletions(-)

diff --git a/src/directive/common/copyText.js b/src/directive/common/copyText.js
new file mode 100644
index 0000000..f1316ce
--- /dev/null
+++ b/src/directive/common/copyText.js
@@ -0,0 +1,66 @@
+/**
+* v-copyText 澶嶅埗鏂囨湰鍐呭
+* Copyright (c) 2022 ruoyi
+*/
+
+export default {
+  beforeMount(el, { value, arg }) {
+    if (arg === "callback") {
+      el.$copyCallback = value;
+    } else {
+      el.$copyValue = value;
+      const handler = () => {
+        copyTextToClipboard(el.$copyValue);
+        if (el.$copyCallback) {
+          el.$copyCallback(el.$copyValue);
+        }
+      };
+      el.addEventListener("click", handler);
+      el.$destroyCopy = () => el.removeEventListener("click", handler);
+    }
+  }
+}
+
+function copyTextToClipboard(input, { target = document.body } = {}) {
+  const element = document.createElement('textarea');
+  const previouslyFocusedElement = document.activeElement;
+
+  element.value = input;
+
+  // Prevent keyboard from showing on mobile
+  element.setAttribute('readonly', '');
+
+  element.style.contain = 'strict';
+  element.style.position = 'absolute';
+  element.style.left = '-9999px';
+  element.style.fontSize = '12pt'; // Prevent zooming on iOS
+
+  const selection = document.getSelection();
+  const originalRange = selection.rangeCount > 0 && selection.getRangeAt(0);
+
+  target.append(element);
+  element.select();
+
+  // Explicit selection workaround for iOS
+  element.selectionStart = 0;
+  element.selectionEnd = input.length;
+
+  let isSuccess = false;
+  try {
+    isSuccess = document.execCommand('copy');
+  } catch { }
+
+  element.remove();
+
+  if (originalRange) {
+    selection.removeAllRanges();
+    selection.addRange(originalRange);
+  }
+
+  // Get the focus back on the previously focused element, if any
+  if (previouslyFocusedElement) {
+    previouslyFocusedElement.focus();
+  }
+
+  return isSuccess;
+}
diff --git a/src/directive/index.js b/src/directive/index.js
index 4f8b356..a86e00b 100644
--- a/src/directive/index.js
+++ b/src/directive/index.js
@@ -1,7 +1,9 @@
 import hasRole from './permission/hasRole'
 import hasPermi from './permission/hasPermi'
+import copyText from './common/copyText'
 
 export default function directive(app){
   app.directive('hasRole', hasRole)
   app.directive('hasPermi', hasPermi)
+  app.directive('copyText', copyText)
 }
\ No newline at end of file
diff --git a/src/views/tool/gen/index.vue b/src/views/tool/gen/index.vue
index d37e0bb..8487547 100644
--- a/src/views/tool/gen/index.vue
+++ b/src/views/tool/gen/index.vue
@@ -163,6 +163,7 @@
           :name="key.substring(key.lastIndexOf('/')+1,key.indexOf('.vm'))"
           :key="key"
         >
+          <el-link :underline="false" icon="DocumentCopy" v-copyText="value" v-copyText:callback="copyTextSuccess" style="float:right">&nbsp;澶嶅埗</el-link>
           <pre>{{ value }}</pre>
         </el-tab-pane>
       </el-tabs>
@@ -274,6 +275,10 @@
     preview.value.activeName = "domain.java";
   });
 }
+/** 澶嶅埗浠ｇ爜鎴愬姛 */
+function copyTextSuccess() {
+  proxy.$modal.msgSuccess("澶嶅埗鎴愬姛");
+}
 // 澶氶�夋閫変腑鏁版嵁
 function handleSelectionChange(selection) {
   ids.value = selection.map(item => item.tableId);

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