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"use strict"
/**
* Diff module
*/
define([],
function() {
/**
* A set of diff objects
*/
function Diff_Set(obj_spec) {
this.__diff_set_topo = [];
this.__diff_set_attr = [];
this.__diff_set_vis = [];
}
Diff_Set.prototype.add_diff_obj = function(diff_obj) {
if (diff_obj instanceof Topo_Diff) {
this.__diff_set_topo.push(diff_obj);
}
if (diff_obj instanceof Attr_Diff) {
this.__diff_set_attr.push(diff_obj);
}
if (diff_obj instanceof Vis_Diff) {
this.__diff_set_vis.push(diff_obj);
}
}
/**
* Topological diff object
*/
function Topo_Diff(obj_spec) {
this.link_set_rm = obj_spec.link_set_rm;
this.node_set_rm = obj_spec.node_set_rm;
this.node_set_add = obj_spec.node_set_add;
this.link_set_add = obj_spec.link_set_add;
}
Topo_Diff.prototype.for_each_node_add = function(callback, this_arg) {
this.node_set_add.forEach(callback, this_arg);
}
Topo_Diff.prototype.for_each_node_rm = function(callback, this_arg) {
this.node_set_rm.forEach(callback, this_arg);
}
Topo_Diff.prototype.for_each_link_add = function(callback, this_arg) {
this.link_set_add.forEach(callback, this_arg);
}
Topo_Diff.prototype.for_each_link_rm = function(callback, this_arg) {
this.link_set_rm.forEach(callback, this_arg);
}
/**
* Attribute diff object, organized by type, where currently
* node,link types are supported
*/
function Attr_Diff(obj_spec) {
this.__type_node = {};
this.__type_link = {};
}
Attr_Diff.prototype.init_attr_diff = function(type_name, id) {
if ('node' != type_name && 'link' != type_name) {
console.error('attempt to init attribute diff for unsupported type: ' + type_name);
return;
}
var type_field = '__type_' + type_name;
this[type_field][id] = {
'__attr_write' : {},
'__attr_remove' : []
};
return this;
}
Attr_Diff.prototype.init_attr_diff_node = function(id) {
return this.init_attr_diff('node', id);
}
Attr_Diff.prototype.init_attr_diff_link = function(id) {
return this.init_attr_diff('link', id);
}
Attr_Diff.prototype.add_node_attr_write = function(n_id, attr_name,
attr_val) {
if (undefined == this.__type_node[n_id]) {
this.init_attr_diff_node(n_id);
}
this.__type_node[n_id].__attr_write[attr_name] = attr_val;
return this;
}
Attr_Diff.prototype.add_node_attr_rm = function(n_id, attr_name) {
if (undefined == this[n_id]) {
this.init_attr_diff(n_id);
}
this.__type_node[n_id].__attr_remove.push(attr_name);
return this;
}
Attr_Diff.prototype.add_link_attr_write = function(l_id, attr_name,
attr_val) {
if (undefined == this.__type_link[l_id]) {
this.init_attr_diff_link(l_id);
}
this.__type_link[l_id].__attr_write[attr_name] = attr_val;
return this;
}
Attr_Diff.prototype.add_link_attr_rm = function(l_id, attr_name) {
if (undefined == this[l_id]) {
this.init_attr_diff(l_id);
}
this.__type_link[l_id].__attr_remove.push(attr_name);
return this;
}
/**
* Visual diff object expressing any visual change to the state of a
* particular visualization type.
*
* @obj_spec if none is passed a default topo_diff is constructed
* with node,link add sets
*/
function Vis_Diff(obj_spec) {
}
function new_topo_diff(obj_spec) {
/*
* validate obj_spec
*/
var ret;
undefined == obj_spec && (obj_spec = {});
undefined == obj_spec.node_set_add && (obj_spec.node_set_add = []);
undefined == obj_spec.link_set_add && (obj_spec.link_set_add = []);
undefined == obj_spec.node_set_rm && (obj_spec.node_set_rm = []);
undefined == obj_spec.link_set_rm && (obj_spec.link_set_rm = []);
ret = new Topo_Diff(obj_spec);
return ret;
}
function new_attr_diff(obj_spec) {
/*
* validate obj_spec
*/
// TODO
var ret = new Attr_Diff(obj_spec);
ret.__type_node = {}; // id-to-obj map
ret.__type_link = {}; // id-to-obj map
return ret;
}
function new_vis_diff(obj_spec) {
/*
* validate obj_spec
*/
// TODO
var ret = new Vis_Diff(obj_spec);
return ret;
}
function new_diff_set(obj_spec) {
/*
* validate obj_spec
*/
// TODO
var ret = new Diff_Set(obj_spec);
return ret;
}
return {
new_topo_diff : new_topo_diff,
new_attr_diff : new_attr_diff,
new_vis_diff : new_vis_diff,
new_diff_set : new_diff_set,
is_attr_diff: function (obj) { return obj instanceof Attr_Diff; },
}
});
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