[IMP] web: add Odoo view compatibility for OWL

Add a base class for a complete OWL renderer
Add a compatibility layer for a Odoo controller that uses a OWL renderer.

Co-authored-by: Pierre Rousseau <pro@odoo.com>

addons/web/static/src/js/views/abstract_controller.js

@@ -287,7 +287,7 @@ var AbstractController = mvc.Controller.extend(ActionMixin, {
             self.handle = handle || self.handle; // update handle if we reloaded
             var state = self.model.get(self.handle);
             var localState = self.renderer.getLocalState();
-            return self.dp.add(self.renderer.updateState(state, params)).then(function () {
+            return self.dp.add(self.updateRendererState(state, params)).then(function () {
                 if (self._controlPanel && cpUpdateIndex !== self._controlPanel.updateIndex) {
                     return;
                 }
@@ -297,6 +297,18 @@ var AbstractController = mvc.Controller.extend(ActionMixin, {
         });
     },
 
+    /**
+     * Update the state of the renderer.
+     * This method is required to be overridden in OWL components through the controller
+     * adapter
+     *
+     * @param {Object} state the model state
+     * @param {Object} params will be given to the model and to the renderer
+     */
+    updateRendererState: function(state, params) {
+        return this.renderer.updateState(state, params);
+    },
+
     //--------------------------------------------------------------------------
     // Private
     //--------------------------------------------------------------------------

addons/web/static/src/js/views/abstract_renderer_owl.js

@@ -0,0 +1,8 @@
+odoo.define('web.AbstractRendererOwl', function (require) {
+    "use strict";
+
+    class AbstractRenderer extends owl.Component { }
+
+    return AbstractRenderer;
+
+});

addons/web/static/src/js/views/controller_adapter.js

@@ -0,0 +1,42 @@
+odoo.define('web.ControllerAdapter', function (require) {
+"use strict";
+
+var AbstractController = require('web.AbstractController');
+
+var ControllerAdapter = AbstractController.extend({
+    on_attach_callback: function () {
+        this.renderer.__callMounted();
+    },
+    on_detach_callback: function () {
+        this.renderer.__callWillUnmount();
+    },
+
+    /**
+     * @override
+     * */
+    updateRendererState: async function (props) {
+        let prom;
+        this.renderer.updateProps(props);
+        if (this.renderer.__owl__.isMounted) {
+            prom = this.renderer.render();
+        } else {
+            prom = this.renderer.mount(this.$('.o_content')[0], true);
+        }
+        return prom;
+    },
+
+    //--------------------------------------------------------------------------
+    // Private
+    //--------------------------------------------------------------------------
+    /**
+     * @override
+     * @private
+     */
+    _startRenderer: async function () {
+        return this.renderer.mount(this.$('.o_content')[0]);
+    },
+});
+
+return ControllerAdapter;
+
+});

addons/web/static/src/js/views/renderer_wrapper.js

@@ -0,0 +1,57 @@
+odoo.define('web.RendererWrapper', function (require) {
+    "use strict";
+
+    const { xml } = owl.tags;
+    const AbstractRenderer = require('web.AbstractRendererOwl');
+
+    class RendererWrapper extends owl.Component {
+        /**
+         *
+         * @param {Object} parent
+         * @param {Object} props
+         * @param {Class} concreteRenderer
+         */
+        constructor(parent, props, concreteRenderer) {
+            super(...arguments);
+            this.concreteRenderer = concreteRenderer;
+            this.data = props;
+        }
+
+        /**
+         * Update the props of the renderer before a re-render
+         * called on the initial render as well as when the renderer is re-mounted (view switched)
+         *
+         * @param {Object} props new props
+         */
+        updateProps(props) {
+            this.data = Object.assign(this.data || {}, props);
+        }
+
+        mounted() {
+            for (let x in this.__owl__.children) {
+                this.__owl__.children[x].__callMounted();
+            }
+        }
+
+        willUnmount() {
+            for (let x in this.__owl__.children) {
+                this.__owl__.children[x].__callWillUnmount();
+            }
+        }
+
+        setParent() { }
+
+        getLocalState() { }
+
+        setLocalState() { }
+
+        giveFocus() { }
+    };
+
+    RendererWrapper.template = xml`<t t-component="concreteRenderer" t-props="data"/>`;
+
+    RendererWrapper.components = { AbstractRenderer };
+
+    return RendererWrapper;
+
+});

addons/web/views/webclient_templates.xml

@@ -298,8 +298,11 @@
 
         <script type="text/javascript" src="/web/static/src/js/views/abstract_view.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/abstract_renderer.js"></script>
+        <script type="text/javascript" src="/web/static/src/js/views/abstract_renderer_owl.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/abstract_model.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/abstract_controller.js"></script>
+        <script type="text/javascript" src="/web/static/src/js/views/controller_adapter.js"></script>
+        <script type="text/javascript" src="/web/static/src/js/views/renderer_wrapper.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/basic/basic_model.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/basic/basic_view.js"></script>
         <script type="text/javascript" src="/web/static/src/js/views/basic/basic_controller.js"></script>