change option to axisPointer.alwaysShowContent

Author: sjcobb

src/component/axisPointer/axisTrigger.ts

@@ -166,11 +166,11 @@ export default function axisTrigger(
         each(coordSysAxesInfo.coordSysAxesInfo[coordSysKey], function (axisInfo, key) {
             // Allow connected charts to bypass illegalPoint check and always show shared
             // axisPointer regardless of series data.
-            const isAlwaysShow = axisInfo.axisPointerModel.get('show') === 'always';
+            const isAlwaysShowContent = axisInfo.axisPointerModel.get('alwaysShowContent');
             const axis = axisInfo.axis;
             const inputAxisInfo = findInputAxisInfo(inputAxesInfo, axisInfo);
             // If no inputAxesInfo, no axis is restricted.
-            if (isAlwaysShow || !shouldHide && coordSysContainsPoint && (!inputAxesInfo || inputAxisInfo)) {
+            if (isAlwaysShowContent || !shouldHide && coordSysContainsPoint && (!inputAxesInfo || inputAxisInfo)) {
                 let val = inputAxisInfo && inputAxisInfo.value;
                 if (val == null && !isIllegalPoint) {
                     val = axis.pointToData(point);

src/util/types.ts

@@ -1660,7 +1660,9 @@ type LabelFormatterParams = {
  * Common axis option. can be configured on each axis
  */
 export interface CommonAxisPointerOption {
-    show?: boolean | 'auto' | 'always'
+    show?: boolean | 'auto'
+
+    alwaysShowContent?: boolean
 
     z?: number;
     zlevel?: number;