refactor: alert list panel fixes and no alerts message, rewrite of PR #9721

public/app/plugins/panel/alertlist/editor.html

@@ -4,22 +4,22 @@
     <div class="gf-form">
       <span class="gf-form-label width-8">Show</span>
       <div class="gf-form-select-wrapper max-width-15">
-        <select class="gf-form-input" ng-model="ctrl.panel.show" ng-options="f.value as f.text for f in ctrl.showOptions" ng-change="ctrl.onRender()"></select>
+        <select class="gf-form-input" ng-model="ctrl.panel.show" ng-options="f.value as f.text for f in ctrl.showOptions" ng-change="ctrl.onRefresh()"></select>
       </div>
     </div>
     <div class="gf-form">
       <span class="gf-form-label width-8">Max items</span>
-      <input type="text" class="gf-form-input max-width-15" ng-model="ctrl.panel.limit" ng-change="ctrl.onRender()" />
+      <input type="text" class="gf-form-input max-width-15" ng-model="ctrl.panel.limit" ng-change="ctrl.onRefresh()" />
     </div>
     <div class="gf-form" ng-show="ctrl.panel.show === 'current'">
       <span class="gf-form-label width-8">Sort order</span>
       <div class="gf-form-select-wrapper max-width-15">
-        <select class="gf-form-input" ng-model="ctrl.panel.sortOrder" ng-options="f.value as f.text for f in ctrl.sortOrderOptions" ng-change="ctrl.onRender()"></select>
+        <select class="gf-form-input" ng-model="ctrl.panel.sortOrder" ng-options="f.value as f.text for f in ctrl.sortOrderOptions" ng-change="ctrl.onRefresh()"></select>
       </div>
     </div>
     <gf-form-switch class="gf-form" label="Alerts from this dashboard" label-class="width-18" checked="ctrl.panel.onlyAlertsOnDashboard" on-change="ctrl.updateStateFilter()"></gf-form-switch>
   </div>
-  <div class="section gf-form-group">
+  <div class="section gf-form-group" ng-show="ctrl.panel.show === 'current'">
     <h5 class="section-heading">State filter</h5>
     <gf-form-switch class="gf-form" label="Ok" label-class="width-10" checked="ctrl.stateFilter['ok']" on-change="ctrl.updateStateFilter()"></gf-form-switch>
     <gf-form-switch class="gf-form" label="Paused" label-class="width-10" checked="ctrl.stateFilter['paused']" on-change="ctrl.updateStateFilter()"></gf-form-switch>

public/app/plugins/panel/alertlist/module.html

@@ -1,12 +1,11 @@
-<div class="panel-alert-list" style="{{ctrl.contentHeight}}">
+<div class="panel-alert-list" ng-style="{height: ctrl.height + 'px'}">
+	<div class="panel-alert-list__no-alerts" ng-show="ctrl.noAlertsMessage">
+		{{ctrl.noAlertsMessage}}
+	</div>
+
   <section class="card-section card-list-layout-list" ng-if="ctrl.panel.show === 'current'">
     <ol class="card-list">
-      <div class="alert-list-no-alerts" ng-style="{'height': + ctrl.panelHeight + 'px'}" ng-show="!ctrl.currentAlerts.length">
-        <p class="alert-list-title">
-          No alerts in selected interval
-        </p>
-      </div>
-      <li class="card-item-wrapper" ng-repeat="alert in ctrl.currentAlerts">
+			<li class="card-item-wrapper" ng-repeat="alert in ctrl.currentAlerts">
         <div class="alert-list card-item card-item--alert">
           <div class="alert-list-body">
             <div class="alert-list-icon alert-list-item-state {{alert.stateModel.stateClass}}">
@@ -30,29 +29,29 @@
   </section>
 
   <section class="card-section card-list-layout-list" ng-if="ctrl.panel.show === 'changes'">
-    <ol class="card-list">
-      <li class="card-item-wrapper" ng-repeat="al in ctrl.alertHistory">
-        <div class="alert-list card-item card-item--alert">
-          <div class="alert-list-body">
-            <div class="alert-list-icon alert-list-item-state {{al.stateModel.stateClass}}">
-              <i class="{{al.stateModel.iconClass}}"></i>
-            </div>
-            <div class="alert-list-main">
-              <p class="alert-list-title">{{al.alertName}}</p>
-              <div class="alert-list-text">
-                <span class="alert-list-state {{al.stateModel.stateClass}}">{{al.stateModel.text}}</span>
-                <span class="alert-list-info alert-list-info-left">{{al.info}}</span>
-              </div>
-            </div>
-          </div>
-          <div class="alert-list-footer">
-            <span class="alert-list-text">{{al.time}}</span>
-            <span class="alert-list-text">
-              <!--Img Link-->
-            </span>
-          </div>
-        </div>
-      </li>
-    </ol>
-  </section>
+		<ol class="card-list">
+			<li class="card-item-wrapper" ng-repeat="al in ctrl.alertHistory">
+				<div class="alert-list card-item card-item--alert">
+					<div class="alert-list-body">
+						<div class="alert-list-icon alert-list-item-state {{al.stateModel.stateClass}}">
+							<i class="{{al.stateModel.iconClass}}"></i>
+						</div>
+						<div class="alert-list-main">
+							<p class="alert-list-title">{{al.alertName}}</p>
+							<div class="alert-list-text">
+								<span class="alert-list-state {{al.stateModel.stateClass}}">{{al.stateModel.text}}</span>
+								<span class="alert-list-info alert-list-info-left">{{al.info}}</span>
+							</div>
+						</div>
+					</div>
+					<div class="alert-list-footer">
+						<span class="alert-list-text">{{al.time}}</span>
+						<span class="alert-list-text">
+							<!--Img Link-->
+						</span>
+					</div>
+				</div>
+			</li>
+		</ol>
+	</section>
 </div>

public/app/plugins/panel/alertlist/module.ts

@@ -21,11 +21,10 @@ class AlertListPanel extends PanelCtrl {
     { text: 'Importance', value: 3 },
   ];
 
-  panelHeight: any;
-  contentHeight: string;
   stateFilter: any = {};
   currentAlerts: any = [];
   alertHistory: any = [];
+  noAlertsMessage: string;
   // Set and populate defaults
   panelDefaults = {
     show: 'current',
@@ -41,8 +40,7 @@ class AlertListPanel extends PanelCtrl {
     _.defaults(this.panel, this.panelDefaults);
 
     this.events.on('init-edit-mode', this.onInitEditMode.bind(this));
-    this.events.on('render', this.onRender.bind(this));
-    this.events.on('refresh', this.onRender.bind(this));
+    this.events.on('refresh', this.onRefresh.bind(this));
 
     for (let key in this.panel.stateFilter) {
       this.stateFilter[this.panel.stateFilter[key]] = true;
@@ -72,12 +70,10 @@ class AlertListPanel extends PanelCtrl {
     }
 
     this.panel.stateFilter = result;
-    this.onRender();
+    this.onRefresh();
   }
 
-  onRender() {
-    this.panelHeight = this.height - 30;
-    this.contentHeight = "max-height: " + this.height + "px;";
+  onRefresh() {
     if (this.panel.show === 'current') {
       this.getCurrentAlertState();
     }
@@ -109,6 +105,7 @@ class AlertListPanel extends PanelCtrl {
           al.info = alertDef.getAlertAnnotationInfo(al);
           return al;
         });
+        this.noAlertsMessage = this.alertHistory.length === 0 ? 'No alerts in current time range' : '';
       });
   }
 
@@ -128,6 +125,7 @@ class AlertListPanel extends PanelCtrl {
           al.newStateDateAgo = moment(al.newStateDate).locale('en').fromNow(true);
           return al;
         }));
+        this.noAlertsMessage = this.currentAlerts.length === 0 ? 'No alerts' : '';
       });
   }
 

public/sass/components/_panel_alertlist.scss

@@ -1,3 +1,12 @@
 .panel-alert-list {
   overflow-y: auto;
 }
+
+.panel-alert-list__no-alerts {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  height: calc(100% - 30px);
+}
+

public/sass/pages/_alerting.scss

@@ -91,13 +91,6 @@
   align-items: flex-end;
 }
 
-.alert-list-no-alerts {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  width: 100%;
-}
-
 .panel-has-alert {
   .panel-alert-icon:before {
     content: "\e611";