chore(project): 添加项目配置文件和忽略规则

- 添加 Babel 配置文件支持 ES6+ 语法转换
- 添加 ESLint 忽略规则和配置文件
- 添加 Git 忽略规则文件
- 添加 Travis CI 配置文件
- 添加 1.4.2 版本变更日志文件
- 添加 Helm 图表辅助模板文件
- 添加 Helm 忽略规则文件

saga/seata-saga-statemachine-designer/ggeditor/components/ItemPanel/Item.js

@@ -0,0 +1,43 @@
+import React from 'react';
+import withGGEditorContext from '@common/context/GGEditorContext/withGGEditorContext';
+
+class Item extends React.Component {
+  constructor(props) {
+    super(props);
+
+    this.bindEvent();
+  }
+
+  handleMouseDown = () => {
+    const { type, size, shape, model } = this.props;
+
+    if (this.page) {
+      this.page.beginAdd(type, {
+        type,
+        size,
+        shape,
+        ...model,
+      });
+    }
+  }
+
+  bindEvent() {
+    const { onAfterAddPage } = this.props;
+
+    onAfterAddPage(({ page }) => {
+      this.page = page;
+    });
+  }
+
+  render() {
+    const { src, shape, children } = this.props;
+
+    return (
+      <div style={{ cursor: 'pointer' }} onMouseDown={this.handleMouseDown}>
+        {src ? <img src={src} alt={shape} draggable={false} /> : children}
+      </div>
+    );
+  }
+}
+
+export default withGGEditorContext(Item);

saga/seata-saga-statemachine-designer/ggeditor/components/ItemPanel/index.js

@@ -0,0 +1,46 @@
+import React from 'react';
+import { pick } from '@utils';
+import withGGEditorContext from '@common/context/GGEditorContext/withGGEditorContext';
+import Item from './Item';
+
+class ItemPanel extends React.Component {
+  page = null;
+
+  constructor(props) {
+    super(props);
+
+    this.bindEvent();
+  }
+
+  handleMouseUp = () => {
+    this.page.cancelAdd();
+  }
+
+  bindEvent() {
+    const { onAfterAddPage } = this.props;
+
+    onAfterAddPage(({ page }) => {
+      this.page = page;
+
+      document.addEventListener('mouseup', this.handleMouseUp);
+    });
+  }
+
+  componentWillUnmount() {
+    document.removeEventListener('mouseup', this.handleMouseUp);
+  }
+
+  render() {
+    const { children } = this.props;
+
+    return (
+      <div id={this.containerId} {...pick(this.props, ['style', 'className'])}>
+        {children}
+      </div>
+    );
+  }
+}
+
+export { Item };
+
+export default withGGEditorContext(ItemPanel);