[REF] web: add module system to the web client

This commit introduces a new module system for the javascript code.
Instead of using global (namespaced) variables everywhere (like
openerp.web.whatever, ...), each file declare one (or more) module
with its dependencies.  Each module will be loaded after its
dependencies, and will be given a reference to the return values.

This change is a massive departure from the way the client worked
previously.  It will sadly break some/most history, but I am sure that
the future git ecosystem will allow you to easily browse the history
past this revision (one can dream).

This commit feature:
* main namespace is now odoo instead of openerp
* a way to define modules and dependencies (inspired by requirejs)
* many files have been splitted in simpler subfiles
* basic support for debugging in odoo.__DEBUG__
* no global variable (i.e. nothing in window.openerp)
* many bug fixes, many new bugs

Future vision: this modularization should simplify future code
development, simplify debugging and will allow a serious testing effort

1 files changed, 54 insertions, 0 deletions

diff --git a/addons/web/static/src/js/framework/registry.js b/addons/web/static/src/js/framework/registry.js
new file mode 100644
index 00000000000..c90614cf94a
--- /dev/null
+++ b/addons/web/static/src/js/framework/registry.js
@@ -0,0 +1,54 @@
+odoo.define('web.Registry', ['web.Class'], function (require) {
+"use strict";
+
+var Class = require('web.Class');
+
+var Registry = Class.extend({
+    init: function (mapping) {
+        this.map = Object.create(mapping || null);
+    },
+    get: function (key) {
+        return this.map[key];
+    },
+    contains: function (key) {
+        return (key in this.map);
+    },
+    /**
+     * Tries a number of keys, and returns the first object matching one of
+     * the keys.
+     *
+     * @param {Array} keys a sequence of keys to fetch the object for
+     * @returns {Class} the first class found matching an object
+     */
+    get_any: function (keys) {
+        for (var i=0; i<keys.length; i++) {
+            if (keys[i] in this.map) {
+                return this.map[keys[i]];
+            }
+        }
+        return null;
+    },
+    add: function (key, value) {
+        this.map[key] = value;
+        return this;
+    },
+    /**
+     * Creates and returns a copy of the current mapping, with the provided
+     * mapping argument added in (replacing existing keys if needed)
+     *
+     * Parent and child remain linked, a new key in the parent (which is not
+     * overwritten by the child) will appear in the child.
+     *
+     * @param {Object} [mapping={}] a mapping of keys to object-paths
+     */
+    extend: function (mapping) {
+        var child = new Registry(this.map);
+        _.extend(child.map, mapping);
+        return child;
+    },
+});
+
+return Registry;
+
+});
+