WorkFlow Diagram Editor

create workflow diagram editor area, install jsplumb package to support node drag and node connections.

Change-Id: Ie68d0f88ef1cc855c1e55e51e918111c6fba4116
Issue-ID: SDC-70
Signed-off-by: Lvbo163 <lv.bo163@zte.com.cn>

8 files changed, 402 insertions, 11 deletions

diff --git a/sdc-workflow-designer-ui/src/app/app.component.css b/sdc-workflow-designer-ui/src/app/app.component.css
index ad9d91f5..06cc8b00 100644
--- a/sdc-workflow-designer-ui/src/app/app.component.css
+++ b/sdc-workflow-designer-ui/src/app/app.component.css
@@ -8,4 +8,12 @@
  *

  * Contributors:

  *     ZTE - initial API and implementation and/or initial documentation

- */
\ No newline at end of file
+ */

+

+

+ .container {

+     width: 100%;

+     height: 100%;

+     background-color: cadetblue;

+ }

+

diff --git a/sdc-workflow-designer-ui/src/app/app.component.html b/sdc-workflow-designer-ui/src/app/app.component.html
index e2204daf..fe3b4550 100644
--- a/sdc-workflow-designer-ui/src/app/app.component.html
+++ b/sdc-workflow-designer-ui/src/app/app.component.html
@@ -13,10 +13,8 @@
 -->
 
 <!--The content below is only a placeholder and can be replaced.-->
-<div style="text-align:center">
-  <h1>
-    Welcome to {{title}}!
-  </h1>
-</div>
 
+<div id="container" class="container">
+    <b4t-node *ngFor="let node of nodes" [node]="node"></b4t-node>
+</div>
 
diff --git a/sdc-workflow-designer-ui/src/app/app.component.ts b/sdc-workflow-designer-ui/src/app/app.component.ts
index 76fa7666..32500abb 100644
--- a/sdc-workflow-designer-ui/src/app/app.component.ts
+++ b/sdc-workflow-designer-ui/src/app/app.component.ts
@@ -10,13 +10,40 @@
  *     ZTE - initial API and implementation and/or initial documentation
  */
 
-import { Component } from '@angular/core';
+import { Component, AfterViewInit } from '@angular/core';
+import { JsPlumbService } from "./services/jsplumb.service";
 
 @Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.css']
 })
-export class AppComponent {
-  title = 'SDC Workflow Designer';
+export class AppComponent implements AfterViewInit {
+    constructor(private jsplumbService: JsPlumbService) {}
+
+    public nodes = [
+        {
+            id: '001',
+            name: 'node001',
+            top: 50,
+            left: 50,
+        },
+        {
+            id: '002',
+            name: 'node002',
+            top: 250,
+            left: 50,
+        },
+        {
+            id: '003',
+            name: 'node003',
+            top: 140,
+            left: 450,
+        },
+    ];
+
+    ngAfterViewInit(): void {
+        this.jsplumbService.initJsPlumbInstance();
+        this.jsplumbService.initNode('.node');
+    }
 }
diff --git a/sdc-workflow-designer-ui/src/app/app.module.ts b/sdc-workflow-designer-ui/src/app/app.module.ts
index 20b217f6..de2b3c08 100644
--- a/sdc-workflow-designer-ui/src/app/app.module.ts
+++ b/sdc-workflow-designer-ui/src/app/app.module.ts
@@ -14,15 +14,18 @@ import { BrowserModule } from '@angular/platform-browser';
 import { NgModule } from '@angular/core';
 
 import { AppComponent } from './app.component';
+import { JsPlumbService } from "./services/jsplumb.service";
+import { NodeComponent } from "./components/node/node.component";
 
 @NgModule({
     declarations: [
-        AppComponent
+        AppComponent,
+        NodeComponent,
     ],
     imports: [
         BrowserModule
     ],
-    providers: [],
+    providers: [JsPlumbService],
     bootstrap: [AppComponent]
 })
 export class AppModule { }
diff --git a/sdc-workflow-designer-ui/src/app/components/node/node.component.css b/sdc-workflow-designer-ui/src/app/components/node/node.component.css
new file mode 100644
index 00000000..24e657ca
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/components/node/node.component.css
@@ -0,0 +1,187 @@
+ .node {

+     position:absolute;

+     width: 100px;

+     height: 50px;

+     border: 2px solid black;

+ }

+

+

+/**

+ * Anchors

+ */

+.anchors {

+    position: absolute;

+    border-radius: 1em;

+    z-index: 20;

+    display: none;

+    background-color: black;

+    width: 0;

+    height: 0;

+    cursor: pointer;

+    -ms-transition: all 0.15s ease-in-out;

+    transition: all 0.15s ease-in-out;

+    -moz-transition: all 0.15s ease-in-out;

+    -webkit-transition: all 0.15s ease-in-out;

+    -o-transition: all 0.15s ease-in-out;

+}

+

+.node:hover .anchors {

+    background-color: black;

+    display: inline-block;

+    width: 12px;

+    height: 12px;

+    z-index: 20;

+}

+

+.anchor-left {

+    left: -5px;

+    top: 40%;

+}

+

+.anchor-right {

+    right: -5px;

+    top: 40%;

+}

+

+.anchor-top {

+    top: -5px;

+    left: 40%;

+}

+

+.anchor-bottom {

+    bottom: -5px;

+    left: 40%;

+}

+

+/*右箭头*/

+.right {

+    width: 10px;

+    height: 10px;

+    position: absolute;

+    left: 4px;

+    top: 1px;

+

+}

+

+.right-arrow1, .right-arrow2 {

+    width: 0;

+    height: 0;

+    display: block;

+    position: absolute;

+    left: 0;

+    top: 0;

+    border-top: 5px transparent dashed;

+    border-right: 5px transparent dashed;

+    border-bottom: 5px transparent dashed;

+    border-left: 5px black solid;

+    overflow: hidden;

+}

+

+.right-arrow1 {

+

+    border-left: 5px white solid;

+}

+

+.right-arrow2 {

+    left: -2px;

+}

+

+/*左箭头*/

+.left {

+    width: 10px;

+    height: 10px;

+    position: absolute;

+    left: -2px;

+    top: 1px;

+    z-index: 2;

+}

+

+.left-arrow1, .left-arrow2 {

+    width: 0;

+    height: 0;

+    display: block;

+    position: absolute;

+    left: 0;

+    top: 0;

+    z-index: 5; /*兼容ie8-*/

+    border-top: 5px transparent dashed;

+    border-left: 5px transparent dashed;

+    border-bottom: 5px transparent dashed;

+    border-right: 5px black solid;

+    overflow: hidden;

+}

+

+.left-arrow1 {

+    border-right: 5px #fff solid;

+}

+

+.left-arrow2 {

+    left: 2px;

+}

+

+/*上箭头*/

+.top {

+    width: 9px;

+    height: 9px;

+    position: absolute;

+    left: 1px;

+    z-index: 2;

+}

+

+.top-arrow1, .top-arrow2 {

+    width: 0;

+    height: 0;

+    display: block;

+    position: absolute;

+    left: 0;

+    top: 0;

+    z-index: 5;

+    border-bottom: 5px black solid;

+    border-left: 5px transparent dashed;

+    border-right: 5px transparent dashed;

+    border-top: 5px transparent dashed;

+    overflow: hidden;

+}

+

+.top-arrow1 {

+    z-index: 6;

+}

+

+.top-arrow2 {

+    top: -2px;

+    border-bottom: 4px white solid;

+}

+

+/*下箭头*/

+.bottom {

+    width: 9px;

+    height: 9px;

+    position: absolute;

+    left: 1px;

+    top: 4px;

+    z-index: 2;

+}

+

+.bottom-arrow1, .bottom-arrow2 {

+    width: 0;

+    height: 0;

+    display: block;

+    position: absolute;

+    left: 0;

+    top: 0;

+    z-index: 5;

+    border-bottom: 4px transparent dashed;

+    border-left: 4px transparent dashed;

+    border-right: 4px transparent dashed;

+    border-top: 4px black solid;

+    overflow: hidden;

+}

+

+.bottom-arrow1 {

+    top: -2px;

+    z-index: 6;

+}

+

+.bottom-arrow2 {

+    border-top: 4px white solid;

+}

diff --git a/sdc-workflow-designer-ui/src/app/components/node/node.component.html b/sdc-workflow-designer-ui/src/app/components/node/node.component.html
new file mode 100644
index 00000000..72700551
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/components/node/node.component.html
@@ -0,0 +1,41 @@
+<!--

+/**

+ * Copyright (c) 2017 ZTE Corporation.

+ * All rights reserved. This program and the accompanying materials

+ * are made available under the terms of the Eclipse Public License v1.0

+ * and the Apache License 2.0 which both accompany this distribution,

+ * and are available at http://www.eclipse.org/legal/epl-v10.html

+ * and http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Contributors:

+ *     ZTE - initial API and implementation and/or initial documentation

+ */

+-->

+<div class="node" [style.top]="node.top + 'px'"

+     [style.left]="node.left + 'px'">

+     <div>{{node.name}}</div>

+    <div class="anchor anchors anchor-left">

+        <span class="left">

+            <i class="left-arrow1"></i>

+            <i class="left-arrow2"></i>

+        </span>

+    </div>

+    <div class="anchor anchors anchor-right">

+        <span class="right">

+            <i class="right-arrow1"></i>

+            <i class="right-arrow2"></i>

+        </span>

+    </div>

+    <div class="anchor anchors anchor-top">

+        <span class="top">

+            <i class="top-arrow1"></i>

+            <i class="top-arrow2"></i>

+        </span>

+    </div>

+    <div class="anchor anchors anchor-bottom">

+        <span class="bottom">

+            <i class="bottom-arrow1"></i>

+            <i class="bottom-arrow2"></i>

+        </span>

+    </div>

+</div>

diff --git a/sdc-workflow-designer-ui/src/app/components/node/node.component.ts b/sdc-workflow-designer-ui/src/app/components/node/node.component.ts
new file mode 100644
index 00000000..12f23cc5
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/components/node/node.component.ts
@@ -0,0 +1,32 @@
+/**

+ * Copyright (c) 2017 ZTE Corporation.

+ * All rights reserved. This program and the accompanying materials

+ * are made available under the terms of the Eclipse Public License v1.0

+ * and the Apache License 2.0 which both accompany this distribution,

+ * and are available at http://www.eclipse.org/legal/epl-v10.html

+ * and http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Contributors:

+ *     ZTE - initial API and implementation and/or initial documentation

+ */

+

+import { Component, AfterViewInit, Input } from '@angular/core';

+

+import { JsPlumbService } from '../../services/jsplumb.service';

+

+/**

+ * workflow node component

+ */

+@Component({

+    selector: 'b4t-node',

+    styleUrls: ['./node.component.css'],

+    templateUrl: 'node.component.html',

+})

+export class NodeComponent {

+    @Input() public node: Node;

+

+    constructor(private jsPlumbService: JsPlumbService) {

+

+    }

+

+}

diff --git a/sdc-workflow-designer-ui/src/app/services/jsplumb.service.ts b/sdc-workflow-designer-ui/src/app/services/jsplumb.service.ts
new file mode 100644
index 00000000..7012ccc3
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/services/jsplumb.service.ts
@@ -0,0 +1,95 @@
+/**

+ * Copyright (c) 2017 ZTE Corporation.

+ * All rights reserved. This program and the accompanying materials

+ * are made available under the terms of the Eclipse Public License v1.0

+ * and the Apache License 2.0 which both accompany this distribution,

+ * and are available at http://www.eclipse.org/legal/epl-v10.html

+ * and http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Contributors:

+ *     ZTE - initial API and implementation and/or initial documentation

+ */

+

+import { Injectable } from '@angular/core';

+import * as jsp from 'jsplumb';

+

+/**

+ * JsPlumbService

+ * provides all of the operations about jsplumb plugin.

+ */

+@Injectable()

+export class JsPlumbService {

+    private jsplumbInstance;

+

+    constructor() {

+

+    }

+

+

+    public initJsPlumbInstance() {

+        this.jsplumbInstance = jsp.jsPlumb.getInstance({

+            Container: 'container'

+        });

+

+        this.jsplumbInstance.importDefaults({

+            Anchor: ['Top', 'RightMiddle', 'LeftMiddle', 'Bottom'],

+            Connector: [

+                'Flowchart',

+                { cornerRadius: 0, stub: 0, gap: 3 },

+            ],

+            ConnectionOverlays: [

+                [

+                    'Arrow',

+                    { direction: 1, foldback: 1, location: 1, width: 10, length: 10 },

+                ],

+                ['Label', { label: '', id: 'label', cssClass: 'aLabel' }],

+            ],

+            Endpoint: 'Blank',

+            PaintStyle: {

+                strokeWidth: 4,

+                stroke: 'black',

+            },

+            HoverPaintStyle: {

+                strokeWidth: 4,

+                stroke: 'blue',

+            },

+        });

+

+        // add connection to model data while a new connection is build

+        this.jsplumbInstance.bind('connection', info => {

+            this.jsplumbInstance.bind('connection', info => {

+

+				info.connection.bind('click', connection => {

+					this.jsplumbInstance.select({ connections: [connection] }).delete();

+				});

+			});

+			

+        });

+

+    }

+

+    public initNode(selectorString: string) {

+        const selector = this.jsplumbInstance.getSelector(selectorString);

+

+        this.jsplumbInstance.draggable(selector, {

+            // stop(event) {

+            //     node.position.left = event.pos[0];

+            //     node.position.top = event.pos[1];

+            // },

+        });

+

+        this.jsplumbInstance.makeTarget(selector, {

+            detachable: false,

+            isTarget: true,

+            maxConnections: -1,

+        });

+

+        this.jsplumbInstance.makeSource(selector, {

+            filter: '.anchor, .anchor *',

+            detachable: false,

+            isSource: true,

+            maxConnections: -1,

+        });

+

+    }
+}