odoo/addons/web/static/src/js/corelib.js

1154 lines
39 KiB
JavaScript

/*
* Copyright (c) 2012, OpenERP S.A.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
openerp.web.corelib = function(instance) {
/**
* Improved John Resig's inheritance, based on:
*
* Simple JavaScript Inheritance
* By John Resig http://ejohn.org/
* MIT Licensed.
*
* Adds "include()"
*
* Defines The Class object. That object can be used to define and inherit classes using
* the extend() method.
*
* Example:
*
* var Person = instance.web.Class.extend({
* init: function(isDancing){
* this.dancing = isDancing;
* },
* dance: function(){
* return this.dancing;
* }
* });
*
* The init() method act as a constructor. This class can be instancied this way:
*
* var person = new Person(true);
* person.dance();
*
* The Person class can also be extended again:
*
* var Ninja = Person.extend({
* init: function(){
* this._super( false );
* },
* dance: function(){
* // Call the inherited version of dance()
* return this._super();
* },
* swingSword: function(){
* return true;
* }
* });
*
* When extending a class, each re-defined method can use this._super() to call the previous
* implementation of that method.
*/
(function() {
var initializing = false,
fnTest = /xyz/.test(function(){xyz();}) ? /\b_super\b/ : /.*/;
// The web Class implementation (does nothing)
instance.web.Class = function(){};
/**
* Subclass an existing class
*
* @param {Object} prop class-level properties (class attributes and instance methods) to set on the new class
*/
instance.web.Class.extend = function() {
var _super = this.prototype;
// Support mixins arguments
var args = _.toArray(arguments);
args.unshift({});
var prop = _.extend.apply(_,args);
// Instantiate a web class (but only create the instance,
// don't run the init constructor)
initializing = true;
var prototype = new this();
initializing = false;
// Copy the properties over onto the new prototype
for (var name in prop) {
// Check if we're overwriting an existing function
prototype[name] = typeof prop[name] == "function" &&
fnTest.test(prop[name]) ?
(function(name, fn) {
return function() {
var tmp = this._super;
// Add a new ._super() method that is the same
// method but on the super-class
this._super = _super[name];
// The method only need to be bound temporarily, so
// we remove it when we're done executing
var ret = fn.apply(this, arguments);
this._super = tmp;
return ret;
};
})(name, prop[name]) :
prop[name];
}
// The dummy class constructor
function Class() {
if(this.constructor !== instance.web.Class){
throw new Error("You can only instanciate objects with the 'new' operator");
}
// All construction is actually done in the init method
if (!initializing && this.init) {
var ret = this.init.apply(this, arguments);
if (ret) { return ret; }
}
return this;
}
Class.include = function (properties) {
for (var name in properties) {
if (typeof properties[name] !== 'function'
|| !fnTest.test(properties[name])) {
prototype[name] = properties[name];
} else if (typeof prototype[name] === 'function'
&& prototype.hasOwnProperty(name)) {
prototype[name] = (function (name, fn, previous) {
return function () {
var tmp = this._super;
this._super = previous;
var ret = fn.apply(this, arguments);
this._super = tmp;
return ret;
}
})(name, properties[name], prototype[name]);
} else if (typeof _super[name] === 'function') {
prototype[name] = (function (name, fn) {
return function () {
var tmp = this._super;
this._super = _super[name];
var ret = fn.apply(this, arguments);
this._super = tmp;
return ret;
}
})(name, properties[name]);
}
}
};
// Populate our constructed prototype object
Class.prototype = prototype;
// Enforce the constructor to be what we expect
Class.constructor = Class;
// And make this class extendable
Class.extend = arguments.callee;
return Class;
};
})();
// Mixins
/**
* Mixin to structure objects' life-cycles folowing a parent-children
* relationship. Each object can a have a parent and multiple children.
* When an object is destroyed, all its children are destroyed too releasing
* any resource they could have reserved before.
*/
instance.web.ParentedMixin = {
__parentedMixin : true,
init: function() {
this.__parentedDestroyed = false;
this.__parentedChildren = [];
this.__parentedParent = null;
},
/**
* Set the parent of the current object. When calling this method, the
* parent will also be informed and will return the current object
* when its getChildren() method is called. If the current object did
* already have a parent, it is unregistered before, which means the
* previous parent will not return the current object anymore when its
* getChildren() method is called.
*/
setParent : function(parent) {
if (this.getParent()) {
if (this.getParent().__parentedMixin) {
this.getParent().__parentedChildren = _.without(this
.getParent().getChildren(), this);
}
}
this.__parentedParent = parent;
if (parent && parent.__parentedMixin) {
parent.__parentedChildren.push(this);
}
},
/**
* Return the current parent of the object (or null).
*/
getParent : function() {
return this.__parentedParent;
},
/**
* Return a list of the children of the current object.
*/
getChildren : function() {
return _.clone(this.__parentedChildren);
},
/**
* Returns true if destroy() was called on the current object.
*/
isDestroyed : function() {
return this.__parentedDestroyed;
},
/**
Utility method to only execute asynchronous actions if the current
object has not been destroyed.
@param {$.Deferred} promise The promise representing the asynchronous
action.
@param {bool} [reject=false] If true, the returned promise will be
rejected with no arguments if the current
object is destroyed. If false, the
returned promise will never be resolved
or rejected.
@returns {$.Deferred} A promise that will mirror the given promise if
everything goes fine but will either be rejected
with no arguments or never resolved if the
current object is destroyed.
*/
alive: function(promise, reject) {
var def = $.Deferred();
var self = this;
promise.done(function() {
if (! self.isDestroyed()) {
if (! reject)
def.resolve.apply(def, arguments);
else
def.reject();
}
}).fail(function() {
if (! self.isDestroyed()) {
if (! reject)
def.reject.apply(def, arguments);
else
def.reject();
}
});
return def.promise();
},
/**
* Inform the object it should destroy itself, releasing any
* resource it could have reserved.
*/
destroy : function() {
_.each(this.getChildren(), function(el) {
el.destroy();
});
this.setParent(undefined);
this.__parentedDestroyed = true;
}
};
/**
* Backbone's events. Do not ever use it directly, use EventDispatcherMixin instead.
*
* This class just handle the dispatching of events, it is not meant to be extended,
* nor used directly. All integration with parenting and automatic unregistration of
* events is done in EventDispatcherMixin.
*
* Copyright notice for the following Class:
*
* (c) 2010-2012 Jeremy Ashkenas, DocumentCloud Inc.
* Backbone may be freely distributed under the MIT license.
* For all details and documentation:
* http://backbonejs.org
*
*/
var Events = instance.web.Class.extend({
on : function(events, callback, context) {
var ev;
events = events.split(/\s+/);
var calls = this._callbacks || (this._callbacks = {});
while ((ev = events.shift())) {
var list = calls[ev] || (calls[ev] = {});
var tail = list.tail || (list.tail = list.next = {});
tail.callback = callback;
tail.context = context;
list.tail = tail.next = {};
}
return this;
},
off : function(events, callback, context) {
var ev, calls, node;
if (!events) {
delete this._callbacks;
} else if ((calls = this._callbacks)) {
events = events.split(/\s+/);
while ((ev = events.shift())) {
node = calls[ev];
delete calls[ev];
if (!callback || !node)
continue;
while ((node = node.next) && node.next) {
if (node.callback === callback
&& (!context || node.context === context))
continue;
this.on(ev, node.callback, node.context);
}
}
}
return this;
},
callbackList: function() {
var lst = [];
_.each(this._callbacks || {}, function(el, eventName) {
var node = el;
while ((node = node.next) && node.next) {
lst.push([eventName, node.callback, node.context]);
}
});
return lst;
},
trigger : function(events) {
var event, node, calls, tail, args, all, rest;
if (!(calls = this._callbacks))
return this;
all = calls['all'];
(events = events.split(/\s+/)).push(null);
// Save references to the current heads & tails.
while ((event = events.shift())) {
if (all)
events.push({
next : all.next,
tail : all.tail,
event : event
});
if (!(node = calls[event]))
continue;
events.push({
next : node.next,
tail : node.tail
});
}
rest = Array.prototype.slice.call(arguments, 1);
while ((node = events.pop())) {
tail = node.tail;
args = node.event ? [ node.event ].concat(rest) : rest;
while ((node = node.next) !== tail) {
node.callback.apply(node.context || this, args);
}
}
return this;
}
});
instance.web.EventDispatcherMixin = _.extend({}, instance.web.ParentedMixin, {
__eventDispatcherMixin: true,
init: function() {
instance.web.ParentedMixin.init.call(this);
this.__edispatcherEvents = new Events();
this.__edispatcherRegisteredEvents = [];
},
on: function(events, dest, func) {
var self = this;
if (!(func instanceof Function)) {
throw new Error("Event handler must be a function.");
}
events = events.split(/\s+/);
_.each(events, function(eventName) {
self.__edispatcherEvents.on(eventName, func, dest);
if (dest && dest.__eventDispatcherMixin) {
dest.__edispatcherRegisteredEvents.push({name: eventName, func: func, source: self});
}
});
return this;
},
off: function(events, dest, func) {
var self = this;
events = events.split(/\s+/);
_.each(events, function(eventName) {
self.__edispatcherEvents.off(eventName, func, dest);
if (dest && dest.__eventDispatcherMixin) {
dest.__edispatcherRegisteredEvents = _.filter(dest.__edispatcherRegisteredEvents, function(el) {
return !(el.name === eventName && el.func === func && el.source === self);
});
}
});
return this;
},
trigger: function(events) {
this.__edispatcherEvents.trigger.apply(this.__edispatcherEvents, arguments);
return this;
},
destroy: function() {
var self = this;
_.each(this.__edispatcherRegisteredEvents, function(event) {
event.source.__edispatcherEvents.off(event.name, event.func, self);
});
this.__edispatcherRegisteredEvents = [];
_.each(this.__edispatcherEvents.callbackList(), function(cal) {
this.off(cal[0], cal[2], cal[1]);
}, this);
this.__edispatcherEvents.off();
instance.web.ParentedMixin.destroy.call(this);
}
});
instance.web.PropertiesMixin = _.extend({}, instance.web.EventDispatcherMixin, {
init: function() {
instance.web.EventDispatcherMixin.init.call(this);
this.__getterSetterInternalMap = {};
},
set: function(arg1, arg2, arg3) {
var map;
var options;
if (typeof arg1 === "string") {
map = {};
map[arg1] = arg2;
options = arg3 || {};
} else {
map = arg1;
options = arg2 || {};
}
var self = this;
var changed = false;
_.each(map, function(val, key) {
var tmp = self.__getterSetterInternalMap[key];
if (tmp === val)
return;
changed = true;
self.__getterSetterInternalMap[key] = val;
if (! options.silent)
self.trigger("change:" + key, self, {
oldValue: tmp,
newValue: val
});
});
if (changed)
self.trigger("change", self);
},
get: function(key) {
return this.__getterSetterInternalMap[key];
}
});
// Classes
/**
A class containing common utility methods useful when working with OpenERP as well as the PropertiesMixin.
*/
instance.web.Controller = instance.web.Class.extend(instance.web.PropertiesMixin, {
/**
* Constructs the object and sets its parent if a parent is given.
*
* @param {instance.web.Controller} parent Binds the current instance to the given Controller instance.
* When that controller is destroyed by calling destroy(), the current instance will be
* destroyed too. Can be null.
*/
init: function(parent) {
instance.web.PropertiesMixin.init.call(this);
this.setParent(parent);
},
/**
* Proxies a method of the object, in order to keep the right ``this`` on
* method invocations.
*
* This method is similar to ``Function.prototype.bind`` or ``_.bind``, and
* even more so to ``jQuery.proxy`` with a fundamental difference: its
* resolution of the method being called is lazy, meaning it will use the
* method as it is when the proxy is called, not when the proxy is created.
*
* Other methods will fix the bound method to what it is when creating the
* binding/proxy, which is fine in most javascript code but problematic in
* OpenERP Web where developers may want to replace existing callbacks with
* theirs.
*
* The semantics of this precisely replace closing over the method call.
*
* @param {String|Function} method function or name of the method to invoke
* @returns {Function} proxied method
*/
proxy: function (method) {
var self = this;
return function () {
var fn = (typeof method === 'string') ? self[method] : method;
return fn.apply(self, arguments);
}
},
/**
* Informs the action manager to do an action. This supposes that
* the action manager can be found amongst the ancestors of the current widget.
* If that's not the case this method will simply return `false`.
*/
do_action: function() {
var parent = this.getParent();
if (parent) {
return parent.do_action.apply(parent, arguments);
}
return false;
},
do_notify: function() {
if (this.getParent()) {
return this.getParent().do_notify.apply(this,arguments);
}
return false;
},
do_warn: function() {
if (this.getParent()) {
return this.getParent().do_warn.apply(this,arguments);
}
return false;
},
rpc: function(url, data, options) {
return this.alive(instance.session.rpc(url, data, options));
}
});
/**
* Base class for all visual components. Provides a lot of functionalities helpful
* for the management of a part of the DOM.
*
* Widget handles:
* - Rendering with QWeb.
* - Life-cycle management and parenting (when a parent is destroyed, all its children are
* destroyed too).
* - Insertion in DOM.
*
* Guide to create implementations of the Widget class:
* ==============================================
*
* Here is a sample child class:
*
* MyWidget = instance.base.Widget.extend({
* // the name of the QWeb template to use for rendering
* template: "MyQWebTemplate",
*
* init: function(parent) {
* this._super(parent);
* // stuff that you want to init before the rendering
* },
* start: function() {
* // stuff you want to make after the rendering, `this.$el` holds a correct value
* this.$el.find(".my_button").click(/* an example of event binding * /);
*
* // if you have some asynchronous operations, it's a good idea to return
* // a promise in start()
* var promise = this.rpc(...);
* return promise;
* }
* });
*
* Now this class can simply be used with the following syntax:
*
* var my_widget = new MyWidget(this);
* my_widget.appendTo($(".some-div"));
*
* With these two lines, the MyWidget instance was inited, rendered, it was inserted into the
* DOM inside the ".some-div" div and its events were binded.
*
* And of course, when you don't need that widget anymore, just do:
*
* my_widget.destroy();
*
* That will kill the widget in a clean way and erase its content from the dom.
*/
instance.web.Widget = instance.web.Controller.extend({
// Backbone-ish API
tagName: 'div',
id: null,
className: null,
attributes: {},
events: {},
/**
* The name of the QWeb template that will be used for rendering. Must be
* redefined in subclasses or the default render() method can not be used.
*
* @type string
*/
template: null,
/**
* Constructs the widget and sets its parent if a parent is given.
*
* @constructs instance.web.Widget
*
* @param {instance.web.Widget} parent Binds the current instance to the given Widget instance.
* When that widget is destroyed by calling destroy(), the current instance will be
* destroyed too. Can be null.
*/
init: function(parent) {
this._super(parent);
// Bind on_/do_* methods to this
// We might remove this automatic binding in the future
for (var name in this) {
if(typeof(this[name]) == "function") {
if((/^on_|^do_/).test(name)) {
this[name] = this[name].bind(this);
}
}
}
// FIXME: this should not be
this.setElement(this._make_descriptive());
this.session = instance.session;
},
/**
* Destroys the current widget, also destroys all its children before destroying itself.
*/
destroy: function() {
_.each(this.getChildren(), function(el) {
el.destroy();
});
if(this.$el) {
this.$el.remove();
}
instance.web.PropertiesMixin.destroy.call(this);
},
/**
* Renders the current widget and appends it to the given jQuery object or Widget.
*
* @param target A jQuery object or a Widget instance.
*/
appendTo: function(target) {
var self = this;
return this.__widgetRenderAndInsert(function(t) {
self.$el.appendTo(t);
}, target);
},
/**
* Renders the current widget and prepends it to the given jQuery object or Widget.
*
* @param target A jQuery object or a Widget instance.
*/
prependTo: function(target) {
var self = this;
return this.__widgetRenderAndInsert(function(t) {
self.$el.prependTo(t);
}, target);
},
/**
* Renders the current widget and inserts it after to the given jQuery object or Widget.
*
* @param target A jQuery object or a Widget instance.
*/
insertAfter: function(target) {
var self = this;
return this.__widgetRenderAndInsert(function(t) {
self.$el.insertAfter(t);
}, target);
},
/**
* Renders the current widget and inserts it before to the given jQuery object or Widget.
*
* @param target A jQuery object or a Widget instance.
*/
insertBefore: function(target) {
var self = this;
return this.__widgetRenderAndInsert(function(t) {
self.$el.insertBefore(t);
}, target);
},
/**
* Renders the current widget and replaces the given jQuery object.
*
* @param target A jQuery object or a Widget instance.
*/
replace: function(target) {
return this.__widgetRenderAndInsert(_.bind(function(t) {
this.$el.replaceAll(t);
}, this), target);
},
__widgetRenderAndInsert: function(insertion, target) {
this.renderElement();
insertion(target);
return this.start();
},
/**
* Method called after rendering. Mostly used to bind actions, perform asynchronous
* calls, etc...
*
* By convention, this method should return an object that can be passed to $.when()
* to inform the caller when this widget has been initialized.
*
* @returns {jQuery.Deferred or any}
*/
start: function() {
return $.when();
},
/**
* Renders the element. The default implementation renders the widget using QWeb,
* `this.template` must be defined. The context given to QWeb contains the "widget"
* key that references `this`.
*/
renderElement: function() {
var $el;
if (this.template) {
$el = $(_.str.trim(instance.web.qweb.render(
this.template, {widget: this})));
} else {
$el = this._make_descriptive();
}
this.replaceElement($el);
},
/**
* Re-sets the widget's root element and replaces the old root element
* (if any) by the new one in the DOM.
*
* @param {HTMLElement | jQuery} $el
* @returns {*} this
*/
replaceElement: function ($el) {
var $oldel = this.$el;
this.setElement($el);
if ($oldel && !$oldel.is(this.$el)) {
$oldel.replaceWith(this.$el);
}
return this;
},
/**
* Re-sets the widget's root element (el/$el/$el).
*
* Includes:
* * re-delegating events
* * re-binding sub-elements
* * if the widget already had a root element, replacing the pre-existing
* element in the DOM
*
* @param {HTMLElement | jQuery} element new root element for the widget
* @return {*} this
*/
setElement: function (element) {
// NB: completely useless, as WidgetMixin#init creates a $el
// always
if (this.$el) {
this.undelegateEvents();
}
this.$el = (element instanceof $) ? element : $(element);
this.el = this.$el[0];
this.delegateEvents();
return this;
},
/**
* Utility function to build small DOM elements.
*
* @param {String} tagName name of the DOM element to create
* @param {Object} [attributes] map of DOM attributes to set on the element
* @param {String} [content] HTML content to set on the element
* @return {Element}
*/
make: function (tagName, attributes, content) {
var el = document.createElement(tagName);
if (!_.isEmpty(attributes)) {
$(el).attr(attributes);
}
if (content) {
$(el).html(content);
}
return el;
},
/**
* Makes a potential root element from the declarative builder of the
* widget
*
* @return {jQuery}
* @private
*/
_make_descriptive: function () {
var attrs = _.extend({}, this.attributes || {});
if (this.id) { attrs.id = this.id; }
if (this.className) { attrs['class'] = this.className; }
return $(this.make(this.tagName, attrs));
},
delegateEvents: function () {
var events = this.events;
if (_.isEmpty(events)) { return; }
for(var key in events) {
if (!events.hasOwnProperty(key)) { continue; }
var method = this.proxy(events[key]);
var match = /^(\S+)(\s+(.*))?$/.exec(key);
var event = match[1];
var selector = match[3];
event += '.widget_events';
if (!selector) {
this.$el.on(event, method);
} else {
this.$el.on(event, selector, method);
}
}
},
undelegateEvents: function () {
this.$el.off('.widget_events');
},
/**
* Shortcut for ``this.$el.find(selector)``
*
* @param {String} selector CSS selector, rooted in $el
* @returns {jQuery} selector match
*/
$: function(selector) {
return this.$el.find(selector);
}
});
instance.web.Registry = instance.web.Class.extend({
/**
* Stores a mapping of arbitrary key (strings) to object paths (as strings
* as well).
*
* Resolves those paths at query time in order to always fetch the correct
* object, even if those objects have been overloaded/replaced after the
* registry was created.
*
* An object path is simply a dotted name from the instance root to the
* object pointed to (e.g. ``"instance.web.Session"`` for an OpenERP
* session object).
*
* @constructs instance.web.Registry
* @param {Object} mapping a mapping of keys to object-paths
*/
init: function (mapping) {
this.parent = null;
this.map = mapping || {};
},
/**
* Retrieves the object matching the provided key string.
*
* @param {String} key the key to fetch the object for
* @param {Boolean} [silent_error=false] returns undefined if the key or object is not found, rather than throwing an exception
* @returns {Class} the stored class, to initialize or null if not found
*/
get_object: function (key, silent_error) {
var path_string = this.map[key];
if (path_string === undefined) {
if (this.parent) {
return this.parent.get_object(key, silent_error);
}
if (silent_error) { return void 'nooo'; }
return null;
}
var object_match = instance;
var path = path_string.split('.');
// ignore first section
for(var i=1; i<path.length; ++i) {
object_match = object_match[path[i]];
if (object_match === undefined) {
if (silent_error) { return void 'noooooo'; }
return null;
}
}
return object_match;
},
/**
* Checks if the registry contains an object mapping for this key.
*
* @param {String} key key to look for
*/
contains: function (key) {
if (key === undefined) { return false; }
if (key in this.map) {
return true
}
if (this.parent) {
return this.parent.contains(key);
}
return false;
},
/**
* 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) {
var key = keys[i];
if (!this.contains(key)) {
continue;
}
return this.get_object(key);
}
return null;
},
/**
* Adds a new key and value to the registry.
*
* This method can be chained.
*
* @param {String} key
* @param {String} object_path fully qualified dotted object path
* @returns {instance.web.Registry} itself
*/
add: function (key, object_path) {
this.map[key] = object_path;
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 instance.web.Registry(mapping);
child.parent = this;
return child;
},
/**
* @deprecated use Registry#extend
*/
clone: function (mapping) {
console.warn('Registry#clone is deprecated, use Registry#extend');
return this.extend(mapping);
}
});
instance.web.JsonRPC = instance.web.Class.extend(instance.web.PropertiesMixin, {
triggers: {
'request': 'Request sent',
'response': 'Response received',
'response_failed': 'HTTP Error response or timeout received',
'error': 'The received response is an JSON-RPC error',
},
/**
* @constructs instance.web.JsonRPC
*
* @param {String} [server] JSON-RPC endpoint hostname
* @param {String} [port] JSON-RPC endpoint port
*/
init: function() {
instance.web.PropertiesMixin.init.call(this);
this.server = null;
this.debug = ($.deparam($.param.querystring()).debug !== undefined);
this.override_session = false;
this.session_id = undefined;
},
setup: function(origin) {
var window_origin = location.protocol+"//"+location.host, self=this;
this.origin = origin ? _.str.rtrim(origin,'/') : window_origin;
this.prefix = this.origin;
this.server = this.origin; // keep chs happy
this.rpc_function = (this.origin == window_origin) ? this.rpc_json : this.rpc_jsonp;
},
/**
* Executes an RPC call, registering the provided callbacks.
*
* Registers a default error callback if none is provided, and handles
* setting the correct session id and session context in the parameter
* objects
*
* @param {String} url RPC endpoint
* @param {Object} params call parameters
* @param {Object} options additional options for rpc call
* @param {Function} success_callback function to execute on RPC call success
* @param {Function} error_callback function to execute on RPC call failure
* @returns {jQuery.Deferred} jquery-provided ajax deferred
*/
rpc: function(url, params, options) {
var self = this;
options = options || {};
// url can be an $.ajax option object
if (_.isString(url)) {
url = { url: url };
}
_.defaults(params, {
context: this.user_context || {}
});
// Construct a JSON-RPC2 request, method is currently unused
var payload = {
jsonrpc: '2.0',
method: 'call',
params: params,
id: _.uniqueId('r')
};
var deferred = $.Deferred();
if (! options.shadow)
this.trigger('request', url, payload);
if (options.timeout)
url.timeout = options.timeout;
this.rpc_function(url, payload).then(
function (response, textStatus, jqXHR) {
if (! options.shadow)
self.trigger('response', response);
if (!response.error) {
deferred.resolve(response["result"], textStatus, jqXHR);
} else if (response.error.code === 100) {
self.uid = false;
} else {
deferred.reject(response.error, $.Event());
}
},
function(jqXHR, textStatus, errorThrown) {
if (! options.shadow)
self.trigger('response_failed', jqXHR);
var error = {
code: -32098,
message: "XmlHttpRequestError " + errorThrown,
data: {type: "xhr"+textStatus, debug: jqXHR.responseText, objects: [jqXHR, errorThrown] }
};
deferred.reject(error, $.Event());
});
// Allow deferred user to disable rpc_error call in fail
deferred.fail(function() {
deferred.fail(function(error, event) {
if (!event.isDefaultPrevented()) {
self.trigger('error', error, event);
}
});
});
return deferred;
},
/**
* Raw JSON-RPC call
*
* @returns {jQuery.Deferred} ajax-webd deferred object
*/
rpc_json: function(url, payload) {
var self = this;
var ajax = _.extend({
type: "POST",
dataType: 'json',
contentType: 'application/json',
data: JSON.stringify(payload),
processData: false,
headers: {
"X-Openerp-Session-Id": this.override_session ? this.session_id : undefined,
},
}, url);
if (this.synch)
ajax.async = false;
return $.ajax(ajax);
},
rpc_jsonp: function(url, payload) {
var self = this;
// extracted from payload to set on the url
var data = {
session_id: this.session_id,
id: payload.id,
};
var set_sid = function (response, textStatus, jqXHR) {
// If response give us the http session id, we store it for next requests...
if (response.session_id) {
self.session_id = response.session_id;
}
};
url.url = this.url(url.url, null);
var ajax = _.extend({
type: "GET",
dataType: 'jsonp',
jsonp: 'jsonp',
cache: false,
data: data
}, url);
if (this.synch)
ajax.async = false;
var payload_str = JSON.stringify(payload);
var payload_url = $.param({r:payload_str});
if (payload_url.length < 2000) {
// Direct jsonp request
ajax.data.r = payload_str;
return $.ajax(ajax).done(set_sid);
} else {
// Indirect jsonp request
var ifid = _.uniqueId('oe_rpc_iframe');
var display = self.debug ? 'block' : 'none';
var $iframe = $(_.str.sprintf("<iframe src='javascript:false;' name='%s' id='%s' style='display:%s'></iframe>", ifid, ifid, display));
var $form = $('<form>')
.attr('method', 'POST')
.attr('target', ifid)
.attr('enctype', "multipart/form-data")
.attr('action', ajax.url + '?jsonp=1&' + $.param(data))
.append($('<input type="hidden" name="r" />').attr('value', payload_str))
.hide()
.appendTo($('body'));
var cleanUp = function() {
if ($iframe) {
$iframe.unbind("load").remove();
}
$form.remove();
};
var deferred = $.Deferred();
// the first bind is fired up when the iframe is added to the DOM
$iframe.bind('load', function() {
// the second bind is fired up when the result of the form submission is received
$iframe.unbind('load').bind('load', function() {
$.ajax(ajax).always(function() {
cleanUp();
}).done(function() {
deferred.resolve.apply(deferred, arguments);
}).fail(function() {
deferred.reject.apply(deferred, arguments);
});
});
// now that the iframe can receive data, we fill and submit the form
$form.submit();
});
// append the iframe to the DOM (will trigger the first load)
$form.after($iframe);
return deferred.done(set_sid);
}
},
url: function(path, params) {
params = _.extend(params || {});
if (this.override_session)
params.session_id = this.session_id;
var qs = '?' + $.param(params);
var prefix = _.any(['http://', 'https://', '//'], _.bind(_.str.startsWith, null, path)) ? '' : this.prefix;
return prefix + path + qs;
},
});
instance.web.py_eval = function(expr, context) {
return py.eval(expr, _.extend({}, context || {}, {"true": true, "false": false, "null": null}));
};
}
// vim:et fdc=0 fdl=0 foldnestmax=3 fdm=syntax: