[REF] mail, *: refactor messaging with OWL

This commit is a significant rewriting of client-side discuss, chatter,
chat window, and messaging menu using OWL. The behavior should be broadly
the same, with some slight functional changes here and there.

From a technical standpoint, the code of messaging is mainly organized in 2
main groups of modules:

- models, which are logical entities that depict the client-side state of
  messaging as a whole.
- components, which are in charge of displaying information from models.

This refactoring also introduces new JS guidelines regarding folder structure
(/static) and naming rules for JS modules.

Community PR: https://github.com/odoo/odoo/pull/39023
Enterprise PR: https://github.com/odoo/enterprise/pull/6249

Task-1914207

This PR is a collaborative work by Alexandre, Julien, Sébastien and Xavier,
with the precious help of Lucas to speed it up towards the end.

closes odoo/odoo#39023

Related: odoo/enterprise#6249
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>
Co-authored-by: Alexandre Kühn <aku@odoo.com>
Co-authored-by: Julien Giannone <jgi@odoo.com>
Co-authored-by: Lucas Perais <lpe@odoo.com>
Co-authored-by: Sébastien Theys <seb@odoo.com>
Co-authored-by: Xavier Dubuc <xdu@odoo.com>

1 files changed, 124 insertions, 0 deletions

diff --git a/addons/mail/static/src/components/thread_preview/thread_preview.js b/addons/mail/static/src/components/thread_preview/thread_preview.js
new file mode 100644
index 00000000000..f2bbfabe3f9
--- /dev/null
+++ b/addons/mail/static/src/components/thread_preview/thread_preview.js
@@ -0,0 +1,124 @@
+odoo.define('mail/static/src/components/thread_preview/thread_preview.js', function (require) {
+'use strict';
+
+const components = {
+    MessageAuthorPrefix: require('mail/static/src/components/message_author_prefix/message_author_prefix.js'),
+    PartnerImStatusIcon: require('mail/static/src/components/partner_im_status_icon/partner_im_status_icon.js'),
+};
+const useStore = require('mail/static/src/component_hooks/use_store/use_store.js');
+const mailUtils = require('mail.utils');
+
+const { Component } = owl;
+const { useRef } = owl.hooks;
+
+class ThreadPreview extends Component {
+
+    /**
+     * @override
+     */
+    constructor(...args) {
+        super(...args);
+        useStore(props => {
+            const thread = this.env.models['mail.thread'].get(props.threadLocalId);
+            const mainThreadCache = thread ? thread.mainCache : undefined;
+            let lastMessageAuthor;
+            let lastMessage;
+            if (thread) {
+                const orderedMessages = mainThreadCache.orderedMessages;
+                lastMessage = orderedMessages[orderedMessages.length - 1];
+            }
+            if (lastMessage) {
+                lastMessageAuthor = lastMessage.author;
+            }
+            return {
+                isDeviceMobile: this.env.messaging.device.isMobile,
+                lastMessage: lastMessage ? lastMessage.__state : undefined,
+                lastMessageAuthor: lastMessageAuthor
+                    ? lastMessageAuthor.__state
+                    : undefined,
+                thread: thread ? thread.__state : undefined,
+                threadCorrespondent: thread && thread.correspondent
+                    ? thread.correspondent.__state
+                    : undefined,
+            };
+        });
+        /**
+         * Reference of the "mark as read" button. Useful to disable the
+         * top-level click handler when clicking on this specific button.
+         */
+        this._markAsReadRef = useRef('markAsRead');
+    }
+
+    //--------------------------------------------------------------------------
+    // Public
+    //--------------------------------------------------------------------------
+
+    /**
+     * Get the image route of the thread.
+     *
+     * @returns {string}
+     */
+    image() {
+        if (this.thread.correspondent) {
+            return `/web/image/res.partner/${this.thread.correspondent.id}/image_128`;
+        }
+        return `/web/image/mail.channel/${this.thread.id}/image_128`;
+    }
+
+    /**
+     * Get inline content of the last message of this conversation.
+     *
+     * @returns {string}
+     */
+    get inlineLastMessageBody() {
+        if (!this.thread.lastMessage) {
+            return '';
+        }
+        return mailUtils.htmlToTextContentInline(this.thread.lastMessage.prettyBody);
+    }
+
+    /**
+     * @returns {mail.thread}
+     */
+    get thread() {
+        return this.env.models['mail.thread'].get(this.props.threadLocalId);
+    }
+
+    //--------------------------------------------------------------------------
+    // Handlers
+    //--------------------------------------------------------------------------
+
+    /**
+     * @private
+     * @param {MouseEvent} ev
+     */
+    _onClick(ev) {
+        const markAsRead = this._markAsReadRef.el;
+        if (markAsRead && markAsRead.contains(ev.target)) {
+            // handled in `_onClickMarkAsRead`
+            return;
+        }
+        this.trigger('o-select-thread', { thread: this.thread });
+    }
+
+    /**
+     * @private
+     * @param {MouseEvent} ev
+     */
+    _onClickMarkAsRead(ev) {
+        this.thread.markAsSeen();
+    }
+
+}
+
+Object.assign(ThreadPreview, {
+    components,
+    props: {
+        threadLocalId: String,
+    },
+    template: 'mail.ThreadPreview',
+});
+
+return ThreadPreview;
+
+});