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split implements and instanceOf from ClassWithAttributes in own ClassWithInterfaces and let et2_dataview_view_container inherit from it

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This commit is contained in:
Ralf Becker 2021-06-14 11:47:02 +02:00
parent 685a0d3328
commit be0af7be68
4 changed files with 228 additions and 249 deletions
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60
api/js/etemplate/et2_core_inheritance.js
View File

@ -13,7 +13,37 @@
import { egw } from "../jsapi/egw_global";
import { et2_checkType, et2_no_init, et2_validateAttrib } from "./et2_core_common";
import { et2_implements_registry } from "./et2_core_interfaces";
export class ClassWithAttributes {
export class ClassWithInterfaces {
/**
* The implements function can be used to check whether the object
* implements the given interface.
*
* As TypeScript can not (yet) check if an objects implements an interface on runtime,
* we currently implements with each interface a function called 'implements_'+interfacename
* to be able to check here.
*
* @param _iface name of interface to check
*/
implements(_iface_name) {
if (typeof et2_implements_registry[_iface_name] === 'function' &&
et2_implements_registry[_iface_name](this)) {
return true;
}
return false;
}
/**
* Check if object is an instance of a class or implements an interface (specified by the interfaces name)
*
* @param _class_or_interfacename class(-name) or string with name of interface
*/
instanceOf(_class_or_interfacename) {
if (typeof _class_or_interfacename === 'string') {
return this.implements(_class_or_interfacename);
}
return this instanceof _class_or_interfacename;
}
}
export class ClassWithAttributes extends ClassWithInterfaces {
/**
* Returns the value of the given attribute. If the property does not
* exist, an error message is issued.
@ -169,33 +199,5 @@ export class ClassWithAttributes {
}
return attributes;
}
/**
* The implements function can be used to check whether the object
* implements the given interface.
*
* As TypeScript can not (yet) check if an objects implements an interface on runtime,
* we currently implements with each interface a function called 'implements_'+interfacename
* to be able to check here.
*
* @param _iface name of interface to check
*/
implements(_iface_name) {
if (typeof et2_implements_registry[_iface_name] === 'function' &&
et2_implements_registry[_iface_name](this)) {
return true;
}
return false;
}
/**
* Check if object is an instance of a class or implements an interface (specified by the interfaces name)
*
* @param _class_or_interfacename class(-name) or string with name of interface
*/
instanceOf(_class_or_interfacename) {
if (typeof _class_or_interfacename === 'string') {
return this.implements(_class_or_interfacename);
}
return this instanceof _class_or_interfacename;
}
}
//# sourceMappingURL=et2_core_inheritance.js.map

406
api/js/etemplate/et2_core_inheritance.ts
View File

@ -16,224 +16,8 @@ import {egw} from "../jsapi/egw_global";
import {et2_checkType, et2_no_init, et2_validateAttrib} from "./et2_core_common";
import {et2_implements_registry} from "./et2_core_interfaces";
export class ClassWithAttributes
export class ClassWithInterfaces
{
/**
* Object to collect the attributes we operate on
*/
attributes: object;
/**
* Returns the value of the given attribute. If the property does not
* exist, an error message is issued.
*
* @param {string} _name
* @return {*}
*/
getAttribute(_name) {
if (typeof this.attributes[_name] != "undefined" &&
!this.attributes[_name].ignore)
{
if (typeof this["get_" + _name] == "function")
{
return this["get_" + _name]();
}
else
{
return this[_name];
}
}
else
{
egw.debug("error", this, "Attribute '" + _name + "' does not exist!");
}
}
/**
* The setAttribute function sets the attribute with the given name to
* the given value. _override defines, whether this[_name] will be set,
* if this key already exists. _override defaults to true. A warning
* is issued if the attribute does not exist.
*
* @param {string} _name
* @param {*} _value
* @param {boolean} _override
*/
setAttribute(_name, _value, _override)
{
if (typeof this.attributes[_name] != "undefined")
{
if (!this.attributes[_name].ignore)
{
if (typeof _override == "undefined")
{
_override = true;
}
var val = et2_checkType(_value, this.attributes[_name].type,
_name, this);
if (typeof this["set_" + _name] == "function")
{
this["set_" + _name](val);
}
else if (_override || typeof this[_name] == "undefined")
{
this[_name] = val;
}
}
}
else
{
egw.debug("warn", this, "Attribute '" + _name + "' does not exist!");
}
}
/**
* generateAttributeSet sanitizes the given associative array of attributes
* (by passing each entry to "et2_checkType" and checking for existance of
* the attribute) and adds the default values to the associative array.
*
* @param {object} _attrs is the associative array containing the attributes.
*/
static generateAttributeSet(widget, _attrs)
{
// Sanity check and validation
for (var key in _attrs)
{
if (typeof widget[key] != "undefined")
{
if (!widget[key].ignore)
{
_attrs[key] = et2_checkType(_attrs[key], widget[key].type,
key, this);
}
}
else
{
// Key does not exist - delete it and issue a warning
delete(_attrs[key]);
egw.debug("warn", this, "Attribute '" + key +
"' does not exist in " + _attrs.type+"!");
}
}
// Include default values or already set values for this attribute
for (var key in widget)
{
if (typeof _attrs[key] == "undefined")
{
var _default = widget[key]["default"];
if (_default == et2_no_init)
{
_default = undefined;
}
_attrs[key] = _default;
}
}
return _attrs;
}
/**
* The initAttributes function sets the attributes to their default
* values. The attributes are not overwritten, which means, that the
* default is only set, if either a setter exists or this[propName] does
* not exist yet.
*
* @param {object} _attrs is the associative array containing the attributes.
*/
initAttributes(_attrs)
{
for (var key in _attrs)
{
if (typeof this.attributes[key] != "undefined" && !this.attributes[key].ignore && !(_attrs[key] == undefined))
{
this.setAttribute(key, _attrs[key], false);
}
}
}
static buildAttributes(class_prototype: object)
{
let class_tree = [];
let attributes = {};
let n = 0;
do
{
n++;
class_tree.push(class_prototype);
class_prototype = Object.getPrototypeOf(class_prototype);
} while (class_prototype !== ClassWithAttributes && n < 50);
for(let i = class_tree.length - 1; i >= 0; i--)
{
attributes = ClassWithAttributes.extendAttributes(attributes, class_tree[i]._attributes);
}
return attributes;
}
/**
* Extend current _attributes with the one from the parent class
*
* This gives inheritance from the parent plus the ability to override in the current class.
*
* @param _attributes
* @param _parent
*/
static extendAttributes(_parent : object, _attributes : object) : object
{
function _copyMerge(_new, _old)
{
var result = {};
// Copy the new object
if (typeof _new != "undefined")
{
for (var key in _new)
{
result[key] = _new[key];
}
}
// Merge the old object
for (var key in _old)
{
if (typeof result[key] == "undefined")
{
result[key] = _old[key];
}
}
return result;
}
var attributes = {};
// Copy the old attributes
for (var key in _attributes)
{
attributes[key] = _copyMerge({}, _attributes[key]);
}
// Add the old attributes to the new ones. If the attributes already
// exist, they are merged.
for (var key in _parent)
{
var _old = _parent[key];
attributes[key] = _copyMerge(attributes[key], _old);
}
// Validate the attributes
for (var key in attributes)
{
et2_validateAttrib(key, attributes[key]);
}
return attributes;
}
/**
* The implements function can be used to check whether the object
* implements the given interface.
@ -268,3 +52,191 @@ export class ClassWithAttributes
return this instanceof _class_or_interfacename;
}
}
export class ClassWithAttributes extends ClassWithInterfaces
{
/**
* Object to collect the attributes we operate on
*/
attributes: object;
/**
* Returns the value of the given attribute. If the property does not
* exist, an error message is issued.
*
* @param {string} _name
* @return {*}
*/
getAttribute(_name)
{
if (typeof this.attributes[_name] != "undefined" &&
!this.attributes[_name].ignore) {
if (typeof this["get_" + _name] == "function") {
return this["get_" + _name]();
} else {
return this[_name];
}
} else {
egw.debug("error", this, "Attribute '" + _name + "' does not exist!");
}
}
/**
* The setAttribute function sets the attribute with the given name to
* the given value. _override defines, whether this[_name] will be set,
* if this key already exists. _override defaults to true. A warning
* is issued if the attribute does not exist.
*
* @param {string} _name
* @param {*} _value
* @param {boolean} _override
*/
setAttribute(_name, _value, _override)
{
if (typeof this.attributes[_name] != "undefined") {
if (!this.attributes[_name].ignore) {
if (typeof _override == "undefined") {
_override = true;
}
var val = et2_checkType(_value, this.attributes[_name].type,
_name, this);
if (typeof this["set_" + _name] == "function") {
this["set_" + _name](val);
} else if (_override || typeof this[_name] == "undefined") {
this[_name] = val;
}
}
} else {
egw.debug("warn", this, "Attribute '" + _name + "' does not exist!");
}
}
/**
* generateAttributeSet sanitizes the given associative array of attributes
* (by passing each entry to "et2_checkType" and checking for existance of
* the attribute) and adds the default values to the associative array.
*
* @param {object} _attrs is the associative array containing the attributes.
*/
static generateAttributeSet(widget, _attrs)
{
// Sanity check and validation
for (var key in _attrs) {
if (typeof widget[key] != "undefined") {
if (!widget[key].ignore) {
_attrs[key] = et2_checkType(_attrs[key], widget[key].type,
key, this);
}
} else {
// Key does not exist - delete it and issue a warning
delete (_attrs[key]);
egw.debug("warn", this, "Attribute '" + key +
"' does not exist in " + _attrs.type + "!");
}
}
// Include default values or already set values for this attribute
for (var key in widget) {
if (typeof _attrs[key] == "undefined") {
var _default = widget[key]["default"];
if (_default == et2_no_init) {
_default = undefined;
}
_attrs[key] = _default;
}
}
return _attrs;
}
/**
* The initAttributes function sets the attributes to their default
* values. The attributes are not overwritten, which means, that the
* default is only set, if either a setter exists or this[propName] does
* not exist yet.
*
* @param {object} _attrs is the associative array containing the attributes.
*/
initAttributes(_attrs)
{
for (var key in _attrs) {
if (typeof this.attributes[key] != "undefined" && !this.attributes[key].ignore && !(_attrs[key] == undefined)) {
this.setAttribute(key, _attrs[key], false);
}
}
}
static buildAttributes(class_prototype: object)
{
let class_tree = [];
let attributes = {};
let n = 0;
do {
n++;
class_tree.push(class_prototype);
class_prototype = Object.getPrototypeOf(class_prototype);
} while (class_prototype !== ClassWithAttributes && n < 50);
for (let i = class_tree.length - 1; i >= 0; i--) {
attributes = ClassWithAttributes.extendAttributes(attributes, class_tree[i]._attributes);
}
return attributes;
}
/**
* Extend current _attributes with the one from the parent class
*
* This gives inheritance from the parent plus the ability to override in the current class.
*
* @param _attributes
* @param _parent
*/
static extendAttributes(_parent: object, _attributes: object): object
{
function _copyMerge(_new, _old)
{
var result = {};
// Copy the new object
if (typeof _new != "undefined") {
for (var key in _new) {
result[key] = _new[key];
}
}
// Merge the old object
for (var key in _old) {
if (typeof result[key] == "undefined") {
result[key] = _old[key];
}
}
return result;
}
var attributes = {};
// Copy the old attributes
for (var key in _attributes) {
attributes[key] = _copyMerge({}, _attributes[key]);
}
// Add the old attributes to the new ones. If the attributes already
// exist, they are merged.
for (var key in _parent) {
var _old = _parent[key];
attributes[key] = _copyMerge(attributes[key], _old);
}
// Validate the attributes
for (var key in attributes) {
et2_validateAttrib(key, attributes[key]);
}
return attributes;
}
}

4
api/js/etemplate/et2_dataview_view_container.js
View File

@ -10,6 +10,7 @@
* @version $Id$
*/
import { et2_bounds } from "./et2_core_common";
import { ClassWithInterfaces } from "./et2_core_inheritance";
/**
* The et2_dataview_container class is the main object each dataview consits of.
* Each row, spacer as well as the grid itself are containers. A container is
@ -26,7 +27,7 @@ import { et2_bounds } from "./et2_core_common";
*
* @augments Class
*/
export class et2_dataview_container {
export class et2_dataview_container extends ClassWithInterfaces {
/**
* Initializes the container object.
*
@ -35,6 +36,7 @@ export class et2_dataview_container {
* @memberOf et2_dataview_container
*/
constructor(_parent) {
super();
// Copy the given invalidation element
this._parent = _parent;
this._nodes = [];

5
api/js/etemplate/et2_dataview_view_container.ts
View File

@ -17,6 +17,7 @@
import {et2_dataview_IInvalidatable} from "./et2_dataview_interfaces";
import {et2_bounds} from "./et2_core_common";
import {ClassWithInterfaces} from "./et2_core_inheritance";
/**
* The et2_dataview_container class is the main object each dataview consits of.
@ -34,7 +35,7 @@ import {et2_bounds} from "./et2_core_common";
*
* @augments Class
*/
export class et2_dataview_container implements et2_dataview_IInvalidatable
export class et2_dataview_container extends ClassWithInterfaces implements et2_dataview_IInvalidatable
{
protected _parent: any;
@ -61,6 +62,8 @@ export class et2_dataview_container implements et2_dataview_IInvalidatable
*/
constructor(_parent)
{
super();
// Copy the given invalidation element
this._parent = _parent;