show big picture of dashboard items

pdb-ui/src/main/resources/resources/css/design.css

@@ -201,6 +201,30 @@ textarea {
 
 }
 
+#result-view-dashboard-image-viewer {
+	position: absolute;
+	top: 0;
+	left: 0;
+	bottom:0;
+	z-index: 1;
+	overflow-y:hidden;
+}
+#result-view-dashboard-image-viewer img{
+	display:block; /* removes 3 pixels extra height around the image */
+}
+
+#result-view-dashboard-image-viewer-close {
+    position: absolute;
+    top: 0;
+    right: 0;
+    font-size:  2em;
+    opacity: 0.3;
+}
+
+#result-view-dashboard-image-viewer-close:hover {
+   opacity: 1.0;
+}
+
 #navigation-bar-dashboard div {
 	float: left;
 }
@@ -234,3 +258,7 @@ input:required:invalid {
 .icon-abort:hover {
 	color: #ff6b6b;
 }
+
+.clickable {
+    cursor: pointer;
+}

pdb-ui/src/main/resources/resources/js/ui.js

@@ -218,25 +218,57 @@ Vue.component('result-view', {
 Vue.component('result-view-dashboard', {
 	props: ['dashboard'],
 	methods: {
+		closeImage: function() {
+			this.dashboard.image = "";
+		}
 	},
 	template: `
 	<div id="result-view-dashboard"
 		v-if="dashboard.tiles">
+		<div v-show="!dashboard.image">
 			<result-view-dashboard-item
 				v-for="item in dashboard.tiles"
 				v-bind:key="item.fieldValue"
 				v-bind:dashboardItem="item"
 			></result-view-dashboard-item>
 		</div>
+		<div 
+			id="result-view-dashboard-image-viewer"
+			v-if="dashboard.image">
+			<img
+				v-bind:src="dashboard.image"
+			/>
+			<div 
+				id="result-view-dashboard-image-viewer-close" 
+				class="clickable"
+				@click="closeImage" 
+				title="Close"
+			><i class="fa fa-times" aria-hidden="true" /></div>
+		</div>
+	</div>
 	`
 });
 
 Vue.component('result-view-dashboard-item', {
 	props: ['dashboardItem'],
+	methods: {
+		showImage: function(){
+			var vm = this;
+			data.dashboard.image = this.dashboardItem.imageUrl;
+		}
+	},
 	template: `
 	<div class="dashboard-item">
 		<div class="error-message" v-if="dashboardItem.error">{{ dashboardItem.error }}</div>
-		<img v-bind:src="dashboardItem.thumbnailUrl" v-if="dashboardItem.thumbnailUrl" />
+		<a 
+			v-bind:href="dashboardItem.imageUrl"
+			v-on:click.prevent.stop
+		><img
+			v-if="dashboardItem.thumbnailUrl"
+			v-bind:src="dashboardItem.thumbnailUrl"
+			class="clickable"
+			@click="showImage" 
+		/></a>
 		<div class="fieldValue">{{ dashboardItem.fieldValue }} ({{ dashboardItem.stats.values }}) ({{ dashboardItem.stats.maxValue }})</div>
 	</div>`
 });
@@ -763,6 +795,7 @@ var data = {
 	dashboard: {
 		tiles: [],
 		toBeRendered: [],
+		image: "",
 		sortBy: "MAX_VALUE_DESC",
 		filter: "NONE",
 		progress: {
@@ -792,6 +825,7 @@ function hidePlotAndDashboard()
 	data.resultView.imageUrl = '';
 	data.resultView.errorMessage = '';
 	data.dashboard.tiles = [];
+	data.dashboard.image = "";
 }
 
 function plotCurrent()
@@ -905,8 +939,8 @@ function createDashboard(vm){
 	
 	hidePlotAndDashboard();
 	
-	const imageHeight = Math.floor($('#app').height() - $('#search-bar').height() - $('#navigation').height());
-	const imageWidth = Math.floor($('#app').width()- $('#search-bar').width() - $('#navigation').width());
+	const imageHeight = Math.floor($('#app').height() - Math.ceil($('#search-bar').outerHeight()) - Math.ceil($('#navigation-bar').outerHeight()));
+	const imageWidth = Math.floor($('#app').width());
 	
 	const originalQuery = data.searchBar.query;
 	vm.splitQueries(function (fieldValues) {