Added the Yang GUI to GUI2

Change-Id: I843db3838668e21a77837faaf00d4d6834676d8d
diff --git a/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.html b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.html
new file mode 100644
index 0000000..020d95c
--- /dev/null
+++ b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.html
@@ -0,0 +1,36 @@
+<!--
+~ Copyright 2018-present Open Networking Foundation
+~
+~ Licensed under the Apache License, Version 2.0 (the "License");
+~ you may not use this file except in compliance with the License.
+~ You may obtain a copy of the License at
+~
+~     http://www.apache.org/licenses/LICENSE-2.0
+~
+~ Unless required by applicable law or agreed to in writing, software
+~ distributed under the License is distributed on an "AS IS" BASIS,
+~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+~ See the License for the specific language governing permissions and
+~ limitations under the License.
+-->
+
+<div id="yang-model-details-panel" class="floatpanel" [@yangDetailsState]="id!=='' && id!=undefined && !closed">
+    <div class="container">
+        <div class="top">
+            <div class="close-btn">
+                <onos-icon class="close-btn" classes="active-close" iconId="close" iconSize="20" (click)="close()"></onos-icon>
+            </div>
+            <onos-icon [iconSize]="40" [iconId]="'nav_yang'"></onos-icon>
+            <h2 class="clickable">Module {{detailsData.id}} ({{detailsData.revision}})</h2>
+            <hr>
+        </div>
+        <div class="bottom">
+            <h3>YANG Source</h3>
+            <div class="src-frame" style="height: 65vh">
+                <div class="module-source">
+                    <pre>{{detailsData.source?.join('\n')}}</pre>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
diff --git a/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.scss b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.scss
new file mode 100644
index 0000000..a7834f2
--- /dev/null
+++ b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.scss
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#yang-model-details-panel.floatpanel {
+  z-index: 0;
+  right: -750px;
+  width: 744px;
+}
+
+#yang-model-details-panel .container {
+  padding: 8px 12px;
+}
+
+#yang-model-details-panel .close-btn {
+  position: absolute;
+  right: 12px;
+  top: 12px;
+  cursor: pointer;
+}
+
+#yang-model-details-panel .dev-icon {
+  display: inline-block;
+  padding: 0 6px 0 0;
+  vertical-align: middle;
+}
+
+#yang-model-details-panel h2 {
+  display: inline-block;
+  margin: 8px 0;
+  padding-left: 6px;
+  font-size: 16pt;
+  font-weight: lighter;
+}
+
+#yang-model-details-panel h3 {
+  display: inline-block;
+  margin: 8px 0;
+  padding-left: 6px;
+  font-size: 13pt;
+  font-weight: lighter;
+}
+
+#yang-model-details-panel .src-frame {
+  overflow: auto;
+}
diff --git a/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.spec.ts b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.spec.ts
new file mode 100644
index 0000000..38ecc26
--- /dev/null
+++ b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.spec.ts
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {async, ComponentFixture, TestBed} from '@angular/core/testing';
+
+import {YangDetailsComponent} from './yangdetails.component';
+
+describe('YangDetailsComponent', () => {
+    let component: YangDetailsComponent;
+    let fixture: ComponentFixture<YangDetailsComponent>;
+
+    beforeEach(async(() => {
+        TestBed.configureTestingModule({
+            declarations: [YangDetailsComponent]
+        })
+            .compileComponents();
+    }));
+
+    beforeEach(() => {
+        fixture = TestBed.createComponent(YangDetailsComponent);
+        component = fixture.componentInstance;
+        fixture.detectChanges();
+    });
+
+    it('should create', () => {
+        expect(component).toBeTruthy();
+    });
+});
diff --git a/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.ts b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.ts
new file mode 100644
index 0000000..a7de139
--- /dev/null
+++ b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.ts
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {
+    Component,
+    Input,
+    OnInit,
+    OnDestroy,
+    OnChanges,
+    SimpleChanges
+} from '@angular/core';
+import {trigger, state, style, animate, transition} from '@angular/animations';
+import {
+    FnService,
+    IconService,
+    LogService,
+    DetailsPanelBaseImpl,
+    WebSocketService,
+} from 'gui2-fw-lib/public_api';
+
+@Component({
+    selector: 'onos-yangdetails',
+    templateUrl: './yangdetails.component.html',
+    styleUrls: [
+        './yangdetails.component.scss', './yangdetails.theme.scss',
+        '../../../../../web/gui2-fw-lib/lib/widget/panel.css',
+        '../../../../../web/gui2-fw-lib/lib/widget/panel-theme.css'
+    ],
+    animations: [
+        trigger('yangDetailsState', [
+            state('true', style({
+                transform: 'translateX(-100%)',
+                opacity: '100'
+            })),
+            state('false', style({
+                transform: 'translateX(0%)',
+                opacity: '0'
+            })),
+            transition('0 => 1', animate('100ms ease-in')),
+            transition('1 => 0', animate('100ms ease-out'))
+        ])
+    ]
+})
+export class YangDetailsComponent extends DetailsPanelBaseImpl implements OnInit, OnDestroy, OnChanges {
+    @Input() id: string;
+    @Input() modelId: string;
+    @Input() revision: string;
+
+    constructor(
+        protected fs: FnService,
+        protected log: LogService,
+        protected is: IconService,
+        protected wss: WebSocketService
+    ) {
+        super(fs, log, wss, 'yangModel');
+    }
+
+    ngOnInit() {
+        this.init();
+        this.log.debug('Yang Table Details Component initialized:', this.id);
+    }
+
+    /**
+     * Stop listening to alarmTableDetailsResponse on WebSocket
+     */
+    ngOnDestroy() {
+        this.destroy();
+        this.log.debug('Yang Table Details Component destroyed');
+    }
+
+    /**
+     * Details Panel Data Request on row selection changes
+     * Should be called whenever id changes
+     * If id is empty, no request is made
+     */
+    ngOnChanges(changes: SimpleChanges) {
+        console.log('Change happened', changes);
+        if (changes['id']) {
+            if (this.id === '') {
+                this.modelId = '';
+                this.revision = '';
+                return '';
+            } else {
+                const query = {
+                    'id': this.id,
+                    'modelId': this.modelId,
+                    'revision': this.revision
+                };
+                this.requestDetailsPanelData(query);
+            }
+        }
+    }
+}
diff --git a/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.theme.scss b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.theme.scss
new file mode 100644
index 0000000..39a342d
--- /dev/null
+++ b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.theme.scss
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#yang-model-details-panel .src-frame {
+  background-color: #f4f4f4;
+}