Added in support for navigating to Topo View from Intent View

Change-Id: Ia62428dee29013cc7fa52727662b67f5673d725c
diff --git a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/forcesvg.component.ts b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/forcesvg.component.ts
index adc814e..eebe851 100644
--- a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/forcesvg.component.ts
+++ b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/forcesvg.component.ts
@@ -532,6 +532,7 @@
     /**
      * When traffic monitoring is turned on (A key) highlights will be sent back
      * from the WebSocket through the Traffic Service
+     * Also handles Intent highlights in case one is selected
      * @param devices - an array of device highlights
      * @param hosts - an array of host highlights
      * @param links - an array of link highlights
@@ -566,21 +567,30 @@
         }
         if (links.length > 0) {
             this.log.debug(links.length, 'Links highlighted');
-            links.forEach((lh) => {
-                const linkComponent: LinkSvgComponent =
-                    this.links.find((l) => l.link.id === Link.linkIdFromShowHighlights(lh.id) );
-                if (linkComponent) { // A link might not be present if hosts viewing is switched off
-                    if (fadeMs > 0) {
-                        lh.fadems = fadeMs;
-                    }
-                    linkComponent.ngOnChanges(
-                        {'linkHighlight': new SimpleChange(<LinkHighlight>{}, lh, true)}
-                    );
+            links.forEach((lh: LinkHighlight) => {
+                if (fadeMs > 0) {
+                    lh.fadems = fadeMs;
                 }
+                // Don't user .filter() above as it will create a copy of the component which will be discarded
+                this.links.forEach((l) => {
+                    if (l.link.id === Link.linkIdFromShowHighlights(lh.id)) {
+                        l.linkHighlight = lh;
+                        l.ngOnChanges(
+                            <SimpleChanges>{'linkHighlight': new SimpleChange(<LinkHighlight>{}, lh, true)}
+                        );
+                    }
+                });
             });
         }
     }
 
+    cancelAllLinkHighlightsNow() {
+        this.links.forEach((link: LinkSvgComponent) => {
+            link.linkHighlight = <LinkHighlight>{};
+            this.ngOnChanges(<SimpleChanges>{'linkHighlight': new SimpleChange(<LinkHighlight>{}, <LinkHighlight>{}, false)});
+        });
+    }
+
     /**
      * As nodes are dragged around the graph, their new location should be sent
      * back to server
@@ -665,6 +675,5 @@
         this.graph.reinitSimulation();
         return numbernodes;
     }
-
 }
 
diff --git a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.css b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.css
index 58548c4..e5f12ae 100644
--- a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.css
+++ b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.css
@@ -86,7 +86,7 @@
 }
 
 .link.animated {
-    stroke-dasharray: 8 5;
+    stroke-dasharray: 8;
     animation: ants 5s infinite linear;
     /* below line could be added via Javascript, based on path, if we cared
      * enough about the direction of ant-flow
diff --git a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.html b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.html
index a94914d..ec3afae 100644
--- a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.html
+++ b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.html
@@ -37,11 +37,12 @@
 <svg:line xmlns:svg="http://www.w3.org/2000/svg"
         [attr.x1]="link.source?.x" [attr.y1]="link.source?.y"
         [attr.x2]="link.target?.x" [attr.y2]="link.target?.y"
-        [ngClass]="['link', selected?'selected':'', enhanced?'enhanced':'', highlighted]"
+        [ngClass]="['link', selected?'selected':'', enhanced?'enhanced':'', highlightAsString()]"
         [ngStyle]="{'stroke-width': (enhanced ? 4 : 2) * scale + 'px'}"
         (click)="toggleSelected(link, $event)"
-        (mouseover)="enhance()"
-        [attr.filter]="highlighted?'url(#glow)':'none'">
+        (mouseover)="enhance()">
+<!--        [attr.filter]="highlighted?'url(#glow)':'none'">-->
+    <svg:desc>{{link.id}} {{linkHighlight?.css}} {{isHighlighted}}</svg:desc>
 </svg:line>
 <svg:g xmlns:svg="http://www.w3.org/2000/svg"
        [ngClass]="['linkLabel']"
@@ -58,7 +59,7 @@
               [@linkLabelVisible]="isHighlighted"
               [attr.x]="link.source?.x + (link.target?.x - link.source?.x)/2"
               [attr.y]="link.source?.y + (link.target?.y - link.source?.y)/2"
-    >{{ label }}</svg:text>
+    >{{ linkHighlight?.label }}</svg:text>
 </svg:g>
 <!-- Template explanation: Creates an SVG Group if
     line 1) 'enhanced' is active and port text exists
diff --git a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.ts b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.ts
index c669c1c..197ac3c 100644
--- a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.ts
+++ b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/visuals/linksvg/linksvg.component.ts
@@ -28,6 +28,10 @@
     y: number;
 }
 
+/*
+ * LinkSvgComponent gets its data from 2 sources - the force SVG regionData (which
+ * gives the Link below), and other state data here.
+ */
 @Component({
     selector: '[onos-linksvg]',
     templateUrl: './linksvg.component.html',
@@ -47,9 +51,8 @@
 })
 export class LinkSvgComponent extends NodeVisual implements OnChanges {
     @Input() link: Link;
-    @Input() highlighted: string = '';
+    @Input() linkHighlight: LinkHighlight;
     @Input() highlightsEnabled: boolean = true;
-    @Input() label: string;
     @Input() scale = 1.0;
     isHighlighted: boolean = false;
     @Output() selectedEvent = new EventEmitter<SelectedEvent>();
@@ -70,23 +73,28 @@
         if (changes['linkHighlight']) {
             const hl: LinkHighlight = changes['linkHighlight'].currentValue;
             clearTimeout(this.lastTimer);
-            this.highlighted = hl.css;
-            this.label = hl.label;
             this.isHighlighted = true;
-            this.log.debug('Link hightlighted', this.link.id, this.highlighted);
+            this.log.debug('Link highlighted', this.link.id);
+
             if (hl.fadems > 0) {
                 this.lastTimer = setTimeout(() => {
                     this.isHighlighted = false;
-                    this.highlighted = '';
+                    this.linkHighlight = <LinkHighlight>{};
                     this.ref.markForCheck();
-                }, hl.fadems); // Disappear slightly before next one comes in
+                }, this.linkHighlight.fadems); // Disappear slightly before next one comes in
             }
-
         }
 
         this.ref.markForCheck();
     }
 
+    highlightAsString(): string {
+        if (this.linkHighlight && this.linkHighlight.css) {
+            return this.linkHighlight.css;
+        }
+        return '';
+    }
+
     enhance() {
         if (!this.highlightsEnabled) {
             return;