[IMP] mail, *: template rendering with abstract thread, adapt thread instantiation, thread `getMessages`/`fetchMessages`, and create mode document thread.

* = im_livechat, im_support

- thread widget now uses abstract thread in `render` method
- thread models have their `init` parameters changed, so that the parent may be optional
- reworked 'creating a new record...' in chatter in create mode:
    > new model CreateModeDocumentThread, which basically is a fake document thread
      with a fake message for its rendering in create mode of the chatter
    > special rendering method of thread_widget for such case: `renderChatterCreateMode`
- renamed thread methods previously named `getMessages` to `fetchMessages`:
    > in order to not conflict with `getMessages`, used for rendering
    > now, `getMessages` always get messages that are locally,
      while `fetchMessages` may fetch messages.

TODO:
    - special thread model for im_livechat (rendering is broken ATM)

1 files changed, 9 insertions, 7 deletions

diff --git a/addons/mail/static/src/js/models/threads/mailbox.js b/addons/mail/static/src/js/models/threads/mailbox.js
index bcb5ae609b7..6d2e75c59b1 100644
--- a/addons/mail/static/src/js/models/threads/mailbox.js
+++ b/addons/mail/static/src/js/models/threads/mailbox.js
@@ -18,13 +18,15 @@ var Mailbox = ThreadWithCache.extend({
 
     /**
      * @override
-     * @param {Object} data
-     * @param {string} data.id the ID of the mailbox, without the 'mailbox_'
-     *   prefix.
-     * @param {integer} [data.mailboxCounter=0] the initial mailbox counter of
-     *   this mailbox.
+     * @param {Object} params
+     * @param {Object} params.data
+     * @param {string} params.data.id the ID of the mailbox, without the
+     *   'mailbox_' prefix.
+     * @param {integer} [params.data.mailboxCounter=0] the initial mailbox
+     *   counter of this mailbox.
      */
-    init: function (parent, data) {
+    init: function (params) {
+        var data = params.data;
         // ID or mailboxes are always prefixed with 'mailbox_'
         data.id = 'mailbox_' + data.id;
         data.type = 'mailbox';
@@ -89,7 +91,7 @@ var Mailbox = ThreadWithCache.extend({
     getMessagePreviews: function () {
         var self = this;
 
-        return this.getMessages().then(function (messages) {
+        return this.fetchMessages().then(function (messages) {
             // pick only last message of chatter
             // items = list of objects
             // { unreadCounter: integer, message: mail.model.Message }