diff --git a/addons/base/controllers/main.py b/addons/base/controllers/main.py
index 51d7ed91547..b289259b1f1 100644
--- a/addons/base/controllers/main.py
+++ b/addons/base/controllers/main.py
@@ -239,7 +239,6 @@ def eval_context_and_domain(session, context, domain=None):
     return (e_context, e_domain)
         
 def load_actions_from_ir_values(req, key, key2, models, meta, context):
-    context['bin_size'] = False # Possible upstream bug. Antony says not to loose time on this.
     Values = req.session.model('ir.values')
     actions = Values.get(key, key2, models, meta, context)
 
@@ -757,7 +756,6 @@ class Action(openerpweb.Controller):
         Actions = req.session.model('ir.actions.actions')
         value = False
         context = req.session.eval_context(req.context)
-        context["bin_size"] = False
         action_type = Actions.read([action_id], ['type'], context)
         if action_type:
             action = req.session.model(action_type[0]['type']).read([action_id], False,
diff --git a/addons/base/static/src/js/chrome.js b/addons/base/static/src/js/chrome.js
index b019d7f1867..556c715d339 100644
--- a/addons/base/static/src/js/chrome.js
+++ b/addons/base/static/src/js/chrome.js
@@ -137,6 +137,29 @@ openerp.base.Registry = Class.extend( /** @lends openerp.base.Registry# */ {
         }
         return object_match;
     },
+    /**
+     * 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
+     *
+     * @throws {openerp.base.KeyNotFound} if none of the keys was in the mapping
+     * @trows {openerp.base.ObjectNotFound} if a found object path was invalid
+     */
+    get_any: function (keys) {
+        for (var i=0; i<keys.length; ++i) {
+            try {
+                return this.get_object(keys[i]);
+            } catch (e) {
+                if (e instanceof openerp.base.KeyNotFound) {
+                    continue;
+                }
+                throw e;
+            }
+        }
+        throw new openerp.base.KeyNotFound(keys.join(','));
+    },
     /**
      * Adds a new key and value to the registry.
      *
diff --git a/addons/base/static/src/js/data.js b/addons/base/static/src/js/data.js
index 9f5792bfb24..2d2b36f696a 100644
--- a/addons/base/static/src/js/data.js
+++ b/addons/base/static/src/js/data.js
@@ -196,9 +196,7 @@ openerp.base.GrouplessDataGroup = openerp.base.DataGroup.extend(
         this._super(session, model, domain, context, null, level);
     },
     list: function (ifGroups, ifRecords) {
-        ifRecords(_.extend(
-                new openerp.base.DataSetSearch(this.session, this.model),
-                {domain: this.domain, context: this.context}));
+        ifRecords(new openerp.base.DataSetSearch(this.session, this.model, this.context, this.domain));
     }
 });
 
@@ -287,12 +285,11 @@ openerp.base.DataSet =  openerp.base.Controller.extend( /** @lends openerp.base.
             });
         }
     },
-    default_get: function(fields, context, callback) {
-        context = context || this.context;
+    default_get: function(fields, callback) {
         return this.rpc('/base/dataset/default_get', {
             model: this.model,
             fields: fields,
-            context: context
+            context: this.context
         }, callback);
     },
     create: function(data, callback, error_callback) {
@@ -355,6 +352,9 @@ openerp.base.DataSetStatic =  openerp.base.DataSet.extend({
         // all local records
         this.ids = ids || [];
         this.count = this.ids.length;
+        if (this.ids.length) {
+            this.index = 0;
+        }
     },
     read_slice: function (fields, offset, limit, callback) {
         var self = this;
diff --git a/addons/base/static/src/js/form.js b/addons/base/static/src/js/form.js
index 0ad5f6729e4..b2c74c920c3 100644
--- a/addons/base/static/src/js/form.js
+++ b/addons/base/static/src/js/form.js
@@ -241,12 +241,8 @@ openerp.base.FormView =  openerp.base.View.extend( /** @lends openerp.base.FormV
     },
     on_button_new: function() {
         var self = this;
-        var context = new openerp.base.CompoundContext(this.dataset.context);
-        if (this.view_manager.action && this.view_manager.action.context) {
-            context.add(this.view_manager.action.context);
-        }
         $.when(this.has_been_loaded).then(function() {
-            self.dataset.default_get(_.keys(self.fields_view.fields), context, function(result) {
+            self.dataset.default_get(_.keys(self.fields_view.fields), function(result) {
                 self.on_record_loaded(result.result);
             });
         });
@@ -455,7 +451,7 @@ openerp.base.form.compute_domain = function(expr, fields) {
             }
         }
 
-        var field = fields[ex[0]].value;
+        var field = fields[ex[0]].get_value ? fields[ex[0]].get_value() : fields[ex[0]].value;
         var op = ex[1];
         var val = ex[2];
 
@@ -575,8 +571,8 @@ openerp.base.form.WidgetFrame = openerp.base.form.Widget.extend({
     },
     handle_node: function(node) {
         var type = this.view.fields_view.fields[node.attrs.name] || {};
-        var widget_type = node.attrs.widget || type.type || node.tag;
-        var widget = new (this.view.registry.get_object(widget_type)) (this.view, node);
+        var widget = new (this.view.registry.get_any(
+                [node.attrs.widget, type.type, node.tag])) (this.view, node);
         if (node.tag == 'field') {
             if (!this.view.default_focus_field || node.attrs.default_focus == '1') {
                 this.view.default_focus_field = widget;
@@ -673,6 +669,8 @@ openerp.base.form.WidgetButton = openerp.base.form.Widget.extend({
             this.view.datarecord.id, function (result) {
                 self.log("Button returned", result);
                 self.view.reload();
+            }, function() {
+                self.view.reload();
             });
     }
 });
@@ -1267,7 +1265,7 @@ openerp.base.form.FieldMany2One = openerp.base.form.Field.extend({
                 }, self.view.domain || [],
                 new openerp.base.CompoundContext(build_relation_context(self)).add(context || {}));
         pop.on_select_elements.add(function(element_ids) {
-            dataset.call("name_get", [element_ids[0]], function(data) {
+            dataset.call("name_get", [[element_ids[0]]], function(data) {
                 self._change_int_ext_value(data.result[0]);
                 pop.stop();
             });
@@ -1292,14 +1290,14 @@ openerp.base.form.FieldMany2One = openerp.base.form.Field.extend({
         var _super = this._super;
         this.tmp_value = value;
         var real_set_value = function(rval) {
-            this.tmp_value = undefined;
+            self.tmp_value = undefined;
             _super.apply(self, rval);
             self.original_value = rval;
             self._change_int_ext_value(rval);
         };
         if(typeof(value) === "number") {
             var dataset = new openerp.base.DataSetStatic(this.session, this.field.relation, []);
-            dataset.call("name_get", [value], function(data) {
+            dataset.call("name_get", [[value]], function(data) {
                 real_set_value(data.result[0]);
             }).fail(function() {self.tmp_value = undefined;});
         } else {
@@ -1333,7 +1331,43 @@ openerp.base.form.FieldMany2One = openerp.base.form.Field.extend({
 #         (4, ID)                link
 #         (5)                    unlink all (only valid for one2many)
 */
-
+var commands = {
+    // (0, _, {values})
+    CREATE: 0,
+    'create': function (values) {
+        return [commands.CREATE, false, values];
+    },
+    // (1, id, {values})
+    UPDATE: 1,
+    'update': function (id, values) {
+        return [commands.UPDATE, id, values];
+    },
+    // (2, id[, _])
+    DELETE: 2,
+    'delete': function (id) {
+        return [commands.DELETE, id, false];
+    },
+    // (3, id[, _]) removes relation, but not linked record itself
+    FORGET: 3,
+    'forget': function (id) {
+        return [commands.FORGET, id, false];
+    },
+    // (4, id[, _])
+    LINK_TO: 4,
+    'link_to': function (id) {
+        return [commands.LINK_TO, id, false];
+    },
+    // (5[, _[, _]])
+    FORGET_ALL: 5,
+    'forget_all': function () {
+        return [5, false, false];
+    },
+    // (6, _, ids) replaces all linked records with provided ids
+    REPLACE_WITH: 6,
+    'replace_with': function (ids) {
+        return [6, false, ids];
+    }
+};
 openerp.base.form.FieldOne2Many = openerp.base.form.Field.extend({
     init: function(view, node) {
         this._super(view, node);
@@ -1368,11 +1402,9 @@ openerp.base.form.FieldOne2Many = openerp.base.form.Field.extend({
 
         this.viewmanager = new openerp.base.ViewManager(this.view.session,
             this.element_id, this.dataset, views);
-        var reg = new openerp.base.Registry();
-        reg.add("form", openerp.base.views.map["form"]);
-        reg.add("graph", openerp.base.views.map["graph"]);
-        reg.add("list", "openerp.base.form.One2ManyListView");
-        this.viewmanager.registry = reg;
+        this.viewmanager.registry = openerp.base.views.clone({
+            list: 'openerp.base.form.One2ManyListView'
+        });
 
         this.viewmanager.on_controller_inited.add_last(function(view_type, controller) {
             if (view_type == "list") {
@@ -1399,21 +1431,27 @@ openerp.base.form.FieldOne2Many = openerp.base.form.Field.extend({
         var self = this;
         if(value.length >= 1 && value[0] instanceof Array) {
             var ids = [];
-            _each(value, function(command) {
-                if(command[0] == 0) {
-                    var obj = {id: _.uniqueId(self.dataset.virtual_id_prefix), values: command[2]};
-                    self.dataset.to_create.push(obj);
-                    self.dataset.cache.push(_.clone(obj));
-                    ids.push(obj.id);
-                } else if(command[0] == 1) {
-                    var obj = {id: command[1], values: command[2]};
-                    self.dataset.to_write.push(obj);
-                    self.dataset.cache.push(_.clone(obj));
-                    ids.push(obj.id);
-                } else if(command[0] == 2) {
-                    self.dataset.to_delete.push({id: command[1]});
-                } else if(command[0] == 4) {
-                    ids.push(command[1]);
+            _.each(value, function(command) {
+                var obj = {values: command[2]};
+                switch (command[0]) {
+                    case commands.CREATE:
+                        obj['id'] = _.uniqueId(self.dataset.virtual_id_prefix);
+                        self.dataset.to_create.push(obj);
+                        self.dataset.cache.push(_.clone(obj));
+                        ids.push(obj.id);
+                        return;
+                    case commands.UPDATE:
+                        obj['id'] = command[1];
+                        self.dataset.to_write.push(obj);
+                        self.dataset.cache.push(_.clone(obj));
+                        ids.push(obj.id);
+                        return;
+                    case commands.DELETE:
+                        self.dataset.to_delete.push({id: command[1]});
+                        return;
+                    case commands.LINK_TO:
+                        ids.push(command[1]);
+                        return;
                 }
             });
             this._super(ids);
@@ -1431,16 +1469,17 @@ openerp.base.form.FieldOne2Many = openerp.base.form.Field.extend({
         var val = _.map(this.dataset.ids, function(id) {
             var alter_order = _.detect(self.dataset.to_create, function(x) {return x.id === id;});
             if (alter_order) {
-                return [0, 0, alter_order.values];
+                return commands.create(alter_order.values);
             }
             alter_order = _.detect(self.dataset.to_write, function(x) {return x.id === id;});
             if (alter_order) {
-                return [1, alter_order.id, alter_order.values];
+                return commands.update(alter_order.id, alter_order.values);
             }
-            return [4, id];
+            return commands.link_to(id);
         });
-        val = val.concat(_.map(this.dataset.to_delete, function(v, k) {return [2, x.id];}));
-        return val;
+        return val.concat(_.map(
+            this.dataset.to_delete, function(x) {
+                return commands['delete'](x.id);}));
     },
     validate: function() {
         this.invalid = false;
@@ -1509,7 +1548,7 @@ openerp.base.form.FieldMany2Many = openerp.base.form.Field.extend({
         });
     },
     get_value: function() {
-        return [[6,false,this.dataset.ids]];
+        return [commands.replace_with(this.dataset.ids)];
     }
 });
 
diff --git a/addons/base/static/src/js/views.js b/addons/base/static/src/js/views.js
index 8b87d9cbdbe..e9774fe478c 100644
--- a/addons/base/static/src/js/views.js
+++ b/addons/base/static/src/js/views.js
@@ -18,7 +18,7 @@ openerp.base.ActionManager = openerp.base.Controller.extend({
      * Process an action
      * Supported actions: act_window
      */
-    do_action: function(action) {
+    do_action: function(action, on_closed) {
         var self = this;
         action.flags = _.extend({
             sidebar : action.target != 'new',
@@ -31,6 +31,9 @@ openerp.base.ActionManager = openerp.base.Controller.extend({
         // instantiate the right controllers by understanding the action
         switch (action.type) {
             case 'ir.actions.act_window':
+                if (!action.target && this.dialog_stack.length) {
+                    action.flags.new_window = true;
+                }
                 if (action.target == 'new') {
                     var element_id = _.uniqueId("act_window_dialog");
                     $('<div>', {id: element_id}).dialog({
@@ -44,6 +47,8 @@ openerp.base.ActionManager = openerp.base.Controller.extend({
                     });
                     var viewmanager = new openerp.base.ViewManagerAction(this.session, element_id, action);
                     viewmanager.start();
+                    viewmanager.on_act_window_closed.add(on_closed);
+                    viewmanager.is_dialog = true;
                     this.dialog_stack.push(viewmanager);
                 } else if (action.flags.new_window) {
                     action.flags.new_window = false;
@@ -62,6 +67,9 @@ openerp.base.ActionManager = openerp.base.Controller.extend({
                 break;
             case 'ir.actions.act_window_close':
                 var dialog = this.dialog_stack.pop();
+                if (!action.special) {
+                    dialog.on_act_window_closed();
+                }
                 dialog.$element.dialog('destroy');
                 dialog.stop();
                 break;
@@ -84,6 +92,7 @@ openerp.base.ViewManager =  openerp.base.Controller.extend({
         this.flags = this.flags || {};
         this.sidebar = new openerp.base.NullSidebar();
         this.registry = openerp.base.views;
+        this.is_dialog = false;
     },
     /**
      * @returns {jQuery.Deferred} initial view loading promise
@@ -127,16 +136,19 @@ openerp.base.ViewManager =  openerp.base.Controller.extend({
             }
             if (view_type === 'list' && this.flags.search_view === false && this.action && this.action['auto_search']) {
                 // In case the search view is not instanciated: manually call ListView#search
+                var domains = !_(self.action.domain).isEmpty()
+                                ? [self.action.domain] : [],
+                   contexts = !_(self.action.context).isEmpty()
+                                ? [self.action.context] : [];
                 controller.on_loaded.add({
                     callback: function () {
-                        controller.do_search([self.action.domain], [self.action.context], []);
+                        controller.do_search(domains, contexts, []);
                     },
                     position: 'last',
                     unique: true
                 });
             }
             view_promise = controller.start();
-            var self = this;
             $.when(view_promise).then(function() {
                 self.on_controller_inited(view_type, controller);
             });
@@ -157,12 +169,13 @@ openerp.base.ViewManager =  openerp.base.Controller.extend({
             .filter('[data-view-type="' + view_type + '"]')
             .attr('disabled', true);
 
-        for (var i in this.views) {
-            if (this.views[i].controller) {
-                if (i === view_type) {
-                    $.when(view_promise).then(this.views[i].controller.do_show);
+        for (var view_name in this.views) {
+            if (!this.views.hasOwnProperty(view_name)) { continue; }
+            if (this.views[view_name].controller) {
+                if (view_name === view_type) {
+                    $.when(view_promise).then(this.views[view_name].controller.do_show);
                 } else {
-                    this.views[i].controller.do_hide();
+                    this.views[view_name].controller.do_hide();
                 }
             }
         }
@@ -197,6 +210,11 @@ openerp.base.ViewManager =  openerp.base.Controller.extend({
         });
         return this.searchview.start();
     },
+    /**
+     * Called when this view manager has been created by an action 'act_window@target=new' is closed
+     */
+    on_act_window_closed : function() {
+    },
     /**
      * Called when one of the view want to execute an action
      */
@@ -238,12 +256,14 @@ openerp.base.NullViewManager = openerp.base.generate_null_object_class(openerp.b
 openerp.base.ViewManagerAction = openerp.base.ViewManager.extend({
     init: function(session, element_id, action) {
         var dataset;
-        if(!action.res_id) {
-            dataset = new openerp.base.DataSetSearch(session, action.res_model);
+        if (!action.res_id) {
+            dataset = new openerp.base.DataSetSearch(session, action.res_model, action.context || null);
         } else {
-            dataset = new openerp.base.DataSetStatic(session, action.res_model);
-            dataset.ids = [action.res_id];
-            dataset.count = 1;
+            dataset = new openerp.base.DataSetStatic(session, action.res_model, [action.res_id]);
+            if (action.context) {
+                // TODO fme: should normalize all DataSets constructors to (session, model, context, ...)
+                dataset.context = action.context;
+            }
         }
         this._super(session, element_id, dataset, action.views);
         this.action = action;
@@ -409,14 +429,17 @@ openerp.base.View = openerp.base.Controller.extend({
      * @param {Object} [record_id] the identifier of the object on which the action is to be applied
      * @param {Function} on_no_action callback to execute if the action does not generate any result (no new action)
      */
-    execute_action: function (action_data, dataset, action_manager, record_id, on_no_action) {
+    execute_action: function (action_data, dataset, action_manager, record_id, on_no_action, on_closed) {
+        var self = this;
         var handler = function (r) {
             var action = r.result;
             if (action && action.constructor == Object) {
                 action.context = action.context || {};
-                action.context['active_id'] = dataset.ids[dataset.index];
-                action.context['active_ids'] = [dataset.ids[dataset.index]];
-                action.context['active_model'] = dataset.model;
+                _.extend(action.context, {
+                    active_id: dataset.ids[dataset.index],
+                    active_ids: [dataset.ids[dataset.index]],
+                    active_model: dataset.model
+                });
                 action.flags = {
                     sidebar : false,
                     search_view : false,
@@ -424,7 +447,12 @@ openerp.base.View = openerp.base.Controller.extend({
                     action_buttons : false,
                     pager : false
                 };
-                action_manager.do_action(action);
+                action_manager.do_action(action, on_closed);
+                if (self.view_manager.is_dialog && action.type != 'ir.actions.act_window_close') {
+                    handler({
+                        result : { type: 'ir.actions.act_window_close' }
+                    });
+                }
             } else {
                 on_no_action(action);
             }
@@ -432,7 +460,7 @@ openerp.base.View = openerp.base.Controller.extend({
 
         if (action_data.special) {
             handler({
-                result : { type: 'ir.actions.act_window_close' }
+                result : { type: 'ir.actions.act_window_close', special: action_data.special }
             });
         } else {
             var context = new openerp.base.CompoundContext(dataset.context).add(action_data.context || {});
@@ -476,7 +504,7 @@ openerp.base.json_node_to_xml = function(node, single_quote, indent) {
         throw("Node a json node");
     }
     indent = indent || 0;
-    var sindent = Array(indent + 1).join('\t'),
+    var sindent = new Array(indent + 1).join('\t'),
         r = sindent + '<' + node.tag;
     for (var attr in node.attrs) {
         var vattr = node.attrs[attr];
diff --git a/openerpweb/nonliterals.py b/openerpweb/nonliterals.py
index 097ba54fe01..a99e2215a00 100644
--- a/openerpweb/nonliterals.py
+++ b/openerpweb/nonliterals.py
@@ -197,9 +197,9 @@ class CompoundDomain(BaseDomain):
         final_domain = []
         for domain in self.domains:
             if not isinstance(domain, (list, BaseDomain)):
-                raise TypeError("Domain %r is not a list or a nonliteral Domain",
-                                 domain)
-                
+                raise TypeError(
+                    "Domain %r is not a list or a nonliteral Domain" % domain)
+
             if isinstance(domain, list):
                 final_domain.extend(domain)
                 continue
@@ -237,9 +237,9 @@ class CompoundContext(BaseContext):
         final_context = {}
         for context_to_eval in self.contexts:
             if not isinstance(context_to_eval, (dict, BaseContext)):
-                raise TypeError("Context %r is not a dict or a nonliteral Context",
-                                 context_to_eval)
-    
+                raise TypeError(
+                    "Context %r is not a dict or a nonliteral Context" % context_to_eval)
+
             if isinstance(context_to_eval, dict):
                 final_context.update(context_to_eval)
                 continue
diff --git a/openerpweb/openerpweb.py b/openerpweb/openerpweb.py
index 9da14d5ace0..dcdf981533a 100644
--- a/openerpweb/openerpweb.py
+++ b/openerpweb/openerpweb.py
@@ -138,15 +138,13 @@ class OpenERPSession(object):
         """
         assert self._uid, "The user needs to be logged-in to initialize his context"
         self.context = self.model('res.users').context_get(self.context)
-        # set bin_size to True all the time
         self.context = self.context or {}
-        self.context["bin_size"] = True
-        
+
         self.client_timezone = self.context.get("tz", False)
         # invalid code, anyway we decided the server will be in UTC
         #if self.client_timezone:
         #    self.remote_timezone = self.execute('common', 'timezone_get')
-            
+
         self._locale = self.context.get('lang','en_US')
         lang_ids = self.execute('res.lang','search', [('code', '=', self._locale)])
         if lang_ids: