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luci-base: form.js: implement AbstractSection.getOption() helper

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The `getOption()` function allows to easily obtain a reference to another
option object instance within the same section.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Jo-Philipp Wich 2020-08-06 16:56:46 +02:00
parent 18eddc9624
commit 35e2735e2e
1 changed files with 30 additions and 0 deletions
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30
modules/luci-base/htdocs/luci-static/resources/form.js
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@ -1156,6 +1156,36 @@ var CBIAbstractSection = CBIAbstractElement.extend(/** @lends LuCI.form.Abstract
return rv;
},
/**
* Obtain underlying option objects.
*
* This function is sensitive to the amount of arguments passed to it;
* if no option name is specified, all options within this section are
* returned as dictionary.
*
* If an option name is supplied, this function returns the matching
* LuCI.form.AbstractValue instance only.
*
* @param {string} [option]
* The name of the option object to obtain
*
* @returns {null|LuCI.form.AbstractValue|Object<string, LuCI.form.AbstractValue>}
* Returns either a dictionary of option names and their corresponding
* option instance objects or just a single object instance value,
* depending on the amount of passed arguments.
*/
getOption: function(option) {
var rv = (arguments.length == 0) ? {} : null;
for (var i = 0, o; (o = this.children[i]) != null; i++)
if (rv)
rv[o.option] = o;
else if (o.option == option)
return o;
return rv;
},
/** @private */
renderUCISection: function(section_id) {
var renderTasks = [];