rename getPreviewStyle to getItemStringStyle

Author: alexkuz

src/JSONArrayNode.js

@@ -115,7 +115,7 @@ export default class JSONArrayNode extends React.Component {
         </label>
         <span style={{
           ...spanStyle,
-          ...this.props.styles.getPreviewStyle('Array', this.state.expanded)
+          ...this.props.styles.getItemStringStyle('Array', this.state.expanded)
         }} onClick={::this.handleClick}>
           {this.getItemString(<span style={styles.spanType}>[]</span>)}
         </span>

src/JSONIterableNode.js

@@ -133,7 +133,7 @@ export default class JSONIterableNode extends React.Component {
         </label>
         <span style={{
           ...spanStyle,
-          ...this.props.styles.getPreviewStyle('Iterable', this.state.expanded)
+          ...this.props.styles.getItemStringStyle('Iterable', this.state.expanded)
         }} onClick={::this.handleClick}>
           {this.getItemString(<span style={styles.spanType}>()</span>)}
         </span>

src/JSONObjectNode.js

@@ -116,7 +116,7 @@ export default class JSONObjectNode extends React.Component {
         </label>
         <span style={{
           ...spanStyle,
-          ...this.props.styles.getPreviewStyle('Object', this.state.expanded)
+          ...this.props.styles.getItemStringStyle('Object', this.state.expanded)
         }} onClick={::this.handleClick}>
           {this.getItemString(<span style={styles.spanType}>&#123;&#125;</span>)}
         </span>

src/index.js

@@ -36,7 +36,7 @@ export default class JSONTree extends React.Component {
     theme: solarized,
     getArrowStyle: getEmptyStyle,
     getListStyle: getEmptyStyle,
-    getPreviewStyle: getEmptyStyle,
+    getItemStringStyle: getEmptyStyle,
     getLabelStyle: getEmptyStyle,
     getValueStyle: getEmptyStyle,
     getItemString: (type, data, itemString, itemType) => <span>{itemType} {itemString}</span>
@@ -51,7 +51,7 @@ export default class JSONTree extends React.Component {
     const getStyles = {
       getArrowStyle: this.props.getArrowStyle,
       getListStyle: this.props.getListStyle,
-      getPreviewStyle: this.props.getPreviewStyle,
+      getItemStringStyle: this.props.getItemStringStyle,
       getLabelStyle: this.props.getLabelStyle,
       getValueStyle: this.props.getValueStyle
     };