refactor(shapes)!: remove devs shapes; update standard shapes (#2425)

packages/joint-core/demo/devs/README.md

@@ -0,0 +1,97 @@
+The **Devs** demo introduces a ready-to-use shape with predefined input & output port groups and simplified API.
+
+### joint.shapes.devs.Model
+
+The Model shape implements simple API on top of the JointJS built-in ports. It splits ports into two semantic groups (**in** and **out**) and adds convenient methods for adding and removing ports.
+
+| Attribute | Description |
+| --- | --- |
+| inPorts | an array of all input ports |
+| outPorts | an array of all output ports |
+
+##### shapes.devs.Model.addInPort
+
+    element.addInPort(port, [opt])
+
+Add a single port into the \`inPorts\` array, where \`port\` is a name of the port.
+
+##### shapes.devs.Model.addOutPort
+
+    element.addOutPort(port, [opt])
+
+Add a single port into the \`outPorts\` array, where \`port\` is a name of the port.
+
+##### shapes.devs.Model.changeInGroup
+
+    element.changeInGroup(properties, [opt])
+
+Change the settings for the input ports, where \`properties\` is an object with a [group configuration](https://resources.jointjs.com/docs/jointjs/v3.7/joint.html#dia.Element.ports.interface). It extends the previous settings with the new configuration by default. Pass `{ rewrite: true }` via `opt` to invalidate the previous settings.
+
+##### shapes.devs.Model.changeOutGroup
+
+    element.changeOutGroup(properties, [opt])
+
+Change the settings for the output ports, where \`properties\` is an object with a [group configuration](https://resources.jointjs.com/docs/jointjs/v3.7/joint.html#dia.Element.ports.interface). It extends the previous settings with the new configuration by default. Pass `{ rewrite: true }` via `opt` to invalidate the previous settings.
+
+##### shapes.devs.Model.removeInPort
+
+    element.removeInPort(port, [opt])
+
+Remove a port from an element from the \`inPorts\` array, where \`port\` is a name of the port.
+
+##### shapes.devs.Model.removeOutPort
+
+    element.removeOutPort(port, [opt])
+
+Remove a port from an element from the \`outPorts\` array, where \`port\` is a name of the port.
+
+### joint.shapes.devs.Link
+
+The `devs.Link` extends the `joint.shapes.standard.Link` and changes the link appearance.
+
+#### Example usage
+
+    const shape = new joint.shapes.devs.Model({
+        position: {
+            x: 100,
+            y: 100
+        },
+        inPorts: ['in1', 'in2'],
+        outPorts: ['out1', 'out2']
+    });
+
+    shape.addTo(graph);
+
+    // adding/removing ports dynamically
+    shape.addInPort('in3');
+    shape.removeOutPort('out1').addOutPort('out3');
+
+    const link = new joint.shapes.devs.Link({
+        source: {
+            id: shape.id,
+            port: 'out3'
+        },
+        target: {
+            x: 200,
+            y: 300
+        }
+    });
+    link.addTo(graph);
+
+    // moving the input ports from `left` to `top`
+    shape.changeInGroup({ position: 'top' });
+    // moving the output ports 'right' to 'bottom'
+    shape.changeOutGroup({ position: 'bottom' });
+
+
+#### Hierarchical diagrams
+
+There are two more shapes designed for hierarchical diagrams as part of the demo - `devs.Atomic` and `devs.Coupled`. They inherit from the `devs.Model` and differ only in the color and size. The purpose of these shapes is to enable you to implement a custom logic in your application based on their type. For instance a `devs.Coupled` can embed `devs.Atomic`'s but not the other way round as shown in the demo below.
+
+When working with hierarchical diagrams there is a few methods, that might come in handy.
+
+[`coupled.embed(atomic)`](https://resources.jointjs.com/docs/jointjs/v3.7/joint.html#dia.Element.prototype.embed) that can put the \`atomic\` shape into the \`coupled\`.
+
+[`coupled.fitToChildren()`](https://resources.jointjs.com/docs/jointjs/v3.7/joint.html#dia.Element.prototype.fitToChildren) that resizes the \`coupled\` shape such that all embedded elements are visually contained within it.
+
+[`link.reparent()`](https://resources.jointjs.com/docs/jointjs/v3.7/joint.html#dia.Link.prototype.reparent) that finds the best parent for the \`link\` based on the source and target element.

packages/joint-core/demo/devs/css/shapes.devs.css

@@ -52,27 +52,6 @@ body {
     fill: #feb663;
 }
 
-/* links */
-
-.joint-link .connection {
-    stroke: #4B4F6A;
-    stroke-width: 4px;
-}
-
-.joint-link .marker-arrowheads .marker-arrowhead,
-.joint-link .marker-vertex-group .marker-vertex,
-.joint-link .marker-vertex-group .marker-vertex:hover {
-    fill: #31D0C6;
-}
-
-.joint-link .marker-arrowheads .marker-arrowhead:hover {
-    fill: #F39C12;
-}
-
-.joint-link .link-tools .link-tool .tool-remove circle {
-    fill: #fe854f;
-}
-
 /* highlighting */
 
 .highlighted-parent .body {

packages/joint-core/demo/devs/index.html

@@ -2,7 +2,7 @@
 <html lang="en">
     <head>
         <meta charset="utf-8"/>
-        <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=no"/>
+        <meta name="viewport" content="width=device-width,initial-scale=1.0"/>
         <meta name="description" content="The JointJS Discrete Event System Specification demo serves as a template to help bring your idea to life in no time.">
 
         <title>Discrete Event System Specification | JointJS</title>