sap.ui.define([
"sap/ui/core/Control"
], function(Control) {
/**
* Helper object for dynamic actions. Helper objects are designed
* to be injected inside the control tree in order to perform
* actions based on the binding context of the parent element.
* @class
* @abstract
* @name spet.auth.helper.BaseDynamicActionHelper
* @property {boolean|Deferred} role The role value. If
* a deferred object is given, then the actions are executed only
* when the deferred is resolved.
* @property {spet.auth.IAction} whenPresent The action that
* shoudl be executed when the role is present.
* @property {spet.auth.IAction} whenMissing The action that
* should be executed when the role is missing.
*/
return Control.extend("spet.auth.helper.BaseDynamicActionHelper", {
metadata: {
properties: {
role: {
type: "any"
},
whenPresent: {
type: "spet.auth.IAction"
},
whenMissing: {
type: "spet.auth.IAction"
}
},
associations: {
view: {
type: "sap.ui.core.mvc.View",
multiple: false
}
}
},
_counter: 0,
setRole: function(oValue) {
this.setProperty("role", oValue);
jQuery.when(oValue).then(this.updateRole.bind(this, ++this._counter));
},
/**
* Called when the role is updated.
* @name spet.auth.helper.BaseDynamicActionHelper#updateRole
* @param {integer} iCounter The request counter
* at the moment when the role update was received. This
* is used to ensure that interleaving promises do not
* cause unexpected behavior.
* @returns {void}
*/
updateRole: function(iCounter, bRole) {
if (iCounter === this._counter) {
this.setProperty("role", bRole);
this.refresh();
}
},
/**
* Re-applies the actions to the control tree.
* @name spet.auth.helper.BaseDynamicActionHelper#refresh
* @returns {void}
*/
refresh: function() {
var oAction = null,
oView = sap.ui.getCore().byId(this.getView());
if (this.getRole() === true) {
oAction = this.getWhenPresent();
} else if (this.getRole() === false) {
oAction = this.getWhenMissing();
}
if (oAction) {
this.getSelectedElements().forEach(function(oC) {
oAction.process(oView, oC);
});
}
}
});
}, /* bExport = */ false);