tooltip 位置改成左边

src/components/Tree.tsx

@@ -97,7 +97,7 @@ interface TreeSelectorState {
 export class TreeSelector extends React.Component<
   TreeSelectorProps,
   TreeSelectorState
-  > {
+> {
   static defaultProps = {
     showIcon: true,
     initiallyOpen: true,
@@ -614,6 +614,7 @@ export class TreeSelector extends React.Component<
                     <a
                       onClick={this.handleAdd.bind(this, item)}
                       data-tooltip={createTip}
+                      data-position="left"
                     >
                       <Icon icon="plus" className="icon" />
                     </a>
@@ -623,6 +624,7 @@ export class TreeSelector extends React.Component<
                     <a
                       onClick={this.handleRemove.bind(this, item)}
                       data-tooltip={removeTip}
+                      data-position="left"
                     >
                       <Icon icon="minus" className="icon" />
                     </a>
@@ -632,6 +634,7 @@ export class TreeSelector extends React.Component<
                     <a
                       onClick={this.handleEdit.bind(this, item)}
                       data-tooltip={editTip}
+                      data-position="left"
                     >
                       <Icon icon="pencil" className="icon" />
                     </a>
@@ -728,7 +731,10 @@ export class TreeSelector extends React.Component<
                 })}
               >
                 <div className={cx('Tree-itemLabel')}>
-                    <span className={cx('Tree-itemText')} onClick={this.clearSelect}>
+                  <span
+                    className={cx('Tree-itemText')}
+                    onClick={this.clearSelect}
+                  >
                     {showIcon ? (
                       <i className={cx('Tree-itemIcon Tree-rootIcon')} />
                     ) : null}