'use strict';
'require ui';
'require uci';
'require rpc';
'require dom';
'require baseclass';
var scope = this;
var callSessionAccess = rpc.declare({
object: 'session',
method: 'access',
params: [ 'scope', 'object', 'function' ],
expect: { 'access': false }
});
var CBIJSONConfig = baseclass.extend({
__init__: function(data) {
data = Object.assign({}, data);
this.data = {};
var num_sections = 0,
section_ids = [];
for (var sectiontype in data) {
if (!data.hasOwnProperty(sectiontype))
continue;
if (Array.isArray(data[sectiontype])) {
for (var i = 0, index = 0; i < data[sectiontype].length; i++) {
var item = data[sectiontype][i],
anonymous, name;
if (!L.isObject(item))
continue;
if (typeof(item['.name']) == 'string') {
name = item['.name'];
anonymous = false;
}
else {
name = sectiontype + num_sections;
anonymous = true;
}
if (!this.data.hasOwnProperty(name))
section_ids.push(name);
this.data[name] = Object.assign(item, {
'.index': num_sections++,
'.anonymous': anonymous,
'.name': name,
'.type': sectiontype
});
}
}
else if (L.isObject(data[sectiontype])) {
this.data[sectiontype] = Object.assign(data[sectiontype], {
'.anonymous': false,
'.name': sectiontype,
'.type': sectiontype
});
section_ids.push(sectiontype);
num_sections++;
}
}
section_ids.sort(L.bind(function(a, b) {
var indexA = (this.data[a]['.index'] != null) ? +this.data[a]['.index'] : 9999,
indexB = (this.data[b]['.index'] != null) ? +this.data[b]['.index'] : 9999;
if (indexA != indexB)
return (indexA - indexB);
return L.naturalCompare(a, b);
}, this));
for (var i = 0; i < section_ids.length; i++)
this.data[section_ids[i]]['.index'] = i;
},
load: function() {
return Promise.resolve(this.data);
},
save: function() {
return Promise.resolve();
},
get: function(config, section, option) {
if (section == null)
return null;
if (option == null)
return this.data[section];
if (!this.data.hasOwnProperty(section))
return null;
var value = this.data[section][option];
if (Array.isArray(value))
return value;
if (value != null)
return String(value);
return null;
},
set: function(config, section, option, value) {
if (section == null || option == null || option.charAt(0) == '.')
return;
if (!this.data.hasOwnProperty(section))
return;
if (value == null)
delete this.data[section][option];
else if (Array.isArray(value))
this.data[section][option] = value;
else
this.data[section][option] = String(value);
},
unset: function(config, section, option) {
return this.set(config, section, option, null);
},
sections: function(config, sectiontype, callback) {
var rv = [];
for (var section_id in this.data)
if (sectiontype == null || this.data[section_id]['.type'] == sectiontype)
rv.push(this.data[section_id]);
rv.sort(function(a, b) { return a['.index'] - b['.index'] });
if (typeof(callback) == 'function')
for (var i = 0; i < rv.length; i++)
callback.call(this, rv[i], rv[i]['.name']);
return rv;
},
add: function(config, sectiontype, sectionname) {
var num_sections_type = 0, next_index = 0;
for (var name in this.data) {
num_sections_type += (this.data[name]['.type'] == sectiontype);
next_index = Math.max(next_index, this.data[name]['.index']);
}
var section_id = sectionname || sectiontype + num_sections_type;
if (!this.data.hasOwnProperty(section_id)) {
this.data[section_id] = {
'.name': section_id,
'.type': sectiontype,
'.anonymous': (sectionname == null),
'.index': next_index + 1
};
}
return section_id;
},
remove: function(config, section) {
if (this.data.hasOwnProperty(section))
delete this.data[section];
},
resolveSID: function(config, section_id) {
return section_id;
},
move: function(config, section_id1, section_id2, after) {
return uci.move.apply(this, [config, section_id1, section_id2, after]);
}
});
/**
* @class AbstractElement
* @memberof LuCI.form
* @hideconstructor
* @classdesc
*
* The `AbstractElement` class serves as abstract base for the different form
* elements implemented by `LuCI.form`. It provides the common logic for
* loading and rendering values, for nesting elements and for defining common
* properties.
*
* This class is private and not directly accessible by user code.
*/
var CBIAbstractElement = baseclass.extend(/** @lends LuCI.form.AbstractElement.prototype */ {
__init__: function(title, description) {
this.title = title || '';
this.description = description || '';
this.children = [];
},
/**
* Add another form element as children to this element.
*
* @param {AbstractElement} obj
* The form element to add.
*/
append: function(obj) {
this.children.push(obj);
},
/**
* Parse this elements form input.
*
* The `parse()` function recursively walks the form element tree and
* triggers input value reading and validation for each encountered element.
*
* Elements which are hidden due to unsatisfied dependencies are skipped.
*
* @returns {Promise<void>}
* Returns a promise resolving once this element's value and the values of
* all child elements have been parsed. The returned promise is rejected
* if any parsed values are not meeting the validation constraints of their
* respective elements.
*/
parse: function() {
var args = arguments;
this.children.forEach(function(child) {
child.parse.apply(child, args);
});
},
/**
* Render the form element.
*
* The `render()` function recursively walks the form element tree and
* renders the markup for each element, returning the assembled DOM tree.
*
* @abstract
* @returns {Node|Promise<Node>}
* May return a DOM Node or a promise resolving to a DOM node containing
* the form element's markup, including the markup of any child elements.
*/
render: function() {
L.error('InternalError', 'Not implemented');
},
/** @private */
loadChildren: function(/* ... */) {
var tasks = [];
if (Array.isArray(this.children))
for (var i = 0; i < this.children.length; i++)
if (!this.children[i].disable)
tasks.push(this.children[i].load.apply(this.children[i], arguments));
return Promise.all(tasks);
},
/** @private */
renderChildren: function(tab_name /*, ... */) {
var tasks = [],
index = 0;
if (Array.isArray(this.children))
for (var i = 0; i < this.children.length; i++)
if (tab_name === null || this.children[i].tab === tab_name)
if (!this.children[i].disable)
tasks.push(this.children[i].render.apply(
this.children[i], this.varargs(arguments, 1, index++)));
return Promise.all(tasks);
},
/**
* Strip any HTML tags from the given input string.
*
* @param {string} s
* The input string to clean.
*
* @returns {string}
* The cleaned input string with HTML tags removed.
*/
stripTags: function(s) {
if (typeof(s) == 'string' && !s.match(/[<>]/))
return s;
var x = dom.elem(s) ? s : dom.parse('<div>' + s + '</div>');
x.querySelectorAll('br').forEach(function(br) {
x.replaceChild(document.createTextNode('\n'), br);
});
return (x.textContent || x.innerText || '').replace(/([ \t]*\n)+/g, '\n');
},
/**
* Format the given named property as title string.
*
* This function looks up the given named property and formats its value
* suitable for use as element caption or description string. It also
* strips any HTML tags from the result.
*
* If the property value is a string, it is passed to `String.format()`
* along with any additional parameters passed to `titleFn()`.
*
* If the property value is a function, it is invoked with any additional
* `titleFn()` parameters as arguments and the obtained return value is
* converted to a string.
*
* In all other cases, `null` is returned.
*
* @param {string} property
* The name of the element property to use.
*
* @param {...*} fmt_args
* Extra values to format the title string with.
*
* @returns {string|null}
* The formatted title string or `null` if the property did not exist or
* was neither a string nor a function.
*/
titleFn: function(attr /*, ... */) {
var s = null;
if (typeof(this[attr]) == 'function')
s = this[attr].apply(this, this.varargs(arguments, 1));
else if (typeof(this[attr]) == 'string')
s = (arguments.length > 1) ? ''.format.apply(this[attr], this.varargs(arguments, 1)) : this[attr];
if (s != null)
s = this.stripTags(String(s)).trim();
if (s == null || s == '')
return null;
return s;
}
});
/**
* @constructor Map
* @memberof LuCI.form
* @augments LuCI.form.AbstractElement
*
* @classdesc
*
* The `Map` class represents one complete form. A form usually maps one UCI
* configuration file and is divided into multiple sections containing multiple
* fields each.
*
* It serves as main entry point into the `LuCI.form` for typical view code.
*
* @param {string} config
* The UCI configuration to map. It is automatically loaded along when the
* resulting map instance.
*
* @param {string} [title]
* The title caption of the form. A form title is usually rendered as separate
* headline element before the actual form contents. If omitted, the
* corresponding headline element will not be rendered.
*
* @param {string} [description]
* The description text of the form which is usually rendered as text
* paragraph below the form title and before the actual form contents.
* If omitted, the corresponding paragraph element will not be rendered.
*/
var CBIMap = CBIAbstractElement.extend(/** @lends LuCI.form.Map.prototype */ {
__init__: function(config /*, ... */) {
this.super('__init__', this.varargs(arguments, 1));
this.config = config;
this.parsechain = [ config ];
this.data = uci;
},
/**
* Toggle readonly state of the form.
*
* If set to `true`, the Map instance is marked readonly and any form
* option elements added to it will inherit the readonly state.
*
* If left unset, the Map will test the access permission of the primary
* uci configuration upon loading and mark the form readonly if no write
* permissions are granted.
*
* @name LuCI.form.Map.prototype#readonly
* @type boolean
*/
/**
* Find all DOM nodes within this Map which match the given search
* parameters. This function is essentially a convenience wrapper around
* `querySelectorAll()`.
*
* This function is sensitive to the amount of arguments passed to it;
* if only one argument is specified, it is used as selector-expression
* as-is. When two arguments are passed, the first argument is treated
* as attribute name, the second one as attribute value to match.
*
* As an example, `map.findElements('input')` would find all `<input>`
* nodes while `map.findElements('type', 'text')` would find any DOM node
* with a `type="text"` attribute.
*
* @param {string} selector_or_attrname
* If invoked with only one parameter, this argument is a
* `querySelectorAll()` compatible selector expression. If invoked with
* two parameters, this argument is the attribute name to filter for.
*
* @param {string} [attrvalue]
* In case the function is invoked with two parameters, this argument
* specifies the attribute value to match.
*
* @throws {InternalError}
* Throws an `InternalError` if more than two function parameters are
* passed.
*
* @returns {NodeList}
* Returns a (possibly empty) DOM `NodeList` containing the found DOM nodes.
*/
findElements: function(/* ... */) {
var q = null;
if (arguments.length == 1)
q = arguments[0];
else if (arguments.length == 2)
q = '[%s="%s"]'.format(arguments[0], arguments[1]);
else
L.error('InternalError', 'Expecting one or two arguments to findElements()');
return this.root.querySelectorAll(q);
},
/**
* Find the first DOM node within this Map which matches the given search
* parameters. This function is essentially a convenience wrapper around
* `findElements()` which only returns the first found node.
*
* This function is sensitive to the amount of arguments passed to it;
* if only one argument is specified, it is used as selector-expression
* as-is. When two arguments are passed, the first argument is treated
* as attribute name, the second one as attribute value to match.
*
* As an example, `map.findElement('input')` would find the first `<input>`
* node while `map.findElement('type', 'text')` would find the first DOM
* node with a `type="text"` attribute.
*
* @param {string} selector_or_attrname
* If invoked with only one parameter, this argument is a `querySelector()`
* compatible selector expression. If invoked with two parameters, this
* argument is the attribute name to filter for.
*
* @param {string} [attrvalue]
* In case the function is invoked with two parameters, this argument
* specifies the attribute value to match.
*
* @throws {InternalError}
* Throws an `InternalError` if more than two function parameters are
* passed.
*
* @returns {Node|null}
* Returns the first found DOM node or `null` if no element matched.
*/
findElement: function(/* ... */) {
var res = this.findElements.apply(this, arguments);
return res.length ? res[0] : null;
},
/**
* Tie another UCI configuration to the map.
*
* By default, a map instance will only load the UCI configuration file
* specified in the constructor but sometimes access to values from
* further configuration files is required. This function allows for such
* use cases by registering further UCI configuration files which are
* needed by the map.
*
* @param {string} config
* The additional UCI configuration file to tie to the map. If the given
* config already is in the list of required files, it will be ignored.
*/
chain: function(config) {
if (this.parsechain.indexOf(config) == -1)
this.parsechain.push(config);
},
/**
* Add a configuration section to the map.
*
* LuCI forms follow the structure of the underlying UCI configurations,
* means that a map, which represents a single UCI configuration, is
* divided into multiple sections which in turn contain an arbitrary
* number of options.
*
* While UCI itself only knows two kinds of sections - named and anonymous
* ones - the form class offers various flavors of form section elements
* to present configuration sections in different ways. Refer to the
* documentation of the different section classes for details.
*
* @param {LuCI.form.AbstractSection} sectionclass
* The section class to use for rendering the configuration section.
* Note that this value must be the class itself, not a class instance
* obtained from calling `new`. It must also be a class derived from
* `LuCI.form.AbstractSection`.
*
* @param {...string} classargs
* Additional arguments which are passed as-is to the constructor of the
* given section class. Refer to the class specific constructor
* documentation for details.
*
* @returns {LuCI.form.AbstractSection}
* Returns the instantiated section class instance.
*/
section: function(cbiClass /*, ... */) {
if (!CBIAbstractSection.isSubclass(cbiClass))
L.error('TypeError', 'Class must be a descendent of CBIAbstractSection');
var obj = cbiClass.instantiate(this.varargs(arguments, 1, this));
this.append(obj);
return obj;
},
/**
* Load the configuration covered by this map.
*
* The `load()` function first loads all referenced UCI configurations,
* then it recursively walks the form element tree and invokes the
* load function of each child element.
*
* @returns {Promise<void>}
* Returns a promise resolving once the entire form completed loading all
* data. The promise may reject with an error if any configuration failed
* to load or if any of the child elements load functions rejected with
* an error.
*/
load: function() {
var doCheckACL = (!(this instanceof CBIJSONMap) && this.readonly == null),
loadTasks = [ doCheckACL ? callSessionAccess('uci', this.config, 'write') : true ],
configs = this.parsechain || [ this.config ];
loadTasks.push.apply(loadTasks, configs.map(L.bind(function(config, i) {
return i ? L.resolveDefault(this.data.load(config)) : this.data.load(config);
}, this)));
return Promise.all(loadTasks).then(L.bind(function(res) {
if (res[0] === false)
this.readonly = true;
return this.loadChildren();
}, this));
},
/**
* Parse the form input values.
*
* The `parse()` function recursively walks the form element tree and
* triggers input value reading and validation for each child element.
*
* Elements which are hidden due to unsatisfied dependencies are skipped.
*
* @returns {Promise<void>}
* Returns a promise resolving once the entire form completed parsing all
* input values. The returned promise is rejected if any parsed values are
* not meeting the validation constraints of their respective elements.
*/
parse: function() {
var tasks = [];
if (Array.isArray(this.children))
for (var i = 0; i < this.children.length; i++)
tasks.push(this.children[i].parse());
return Promise.all(tasks);
},
/**
* Save the form input values.
*
* This function parses the current form, saves the resulting UCI changes,
* reloads the UCI configuration data and redraws the form elements.
*
* @param {function} [cb]
* An optional callback function that is invoked after the form is parsed
* but before the changed UCI data is saved. This is useful to perform
* additional data manipulation steps before saving the changes.
*
* @param {boolean} [silent=false]
* If set to `true`, trigger an alert message to the user in case saving
* the form data failures. Otherwise fail silently.
*
* @returns {Promise<void>}
* Returns a promise resolving once the entire save operation is complete.
* The returned promise is rejected if any step of the save operation
* failed.
*/
save: function(cb, silent) {
this.checkDepends();
return this.parse()
.then(cb)
.then(this.data.save.bind(this.data))
.then(this.load.bind(this))
.catch(function(e) {
if (!silent) {
ui.showModal(_('Save error'), [
E('p', {}, [ _('An error occurred while saving the form:') ]),
E('p', {}, [ E('em', { 'style': 'white-space:pre-wrap' }, [ e.message ]) ]),
E('div', { 'class': 'right' }, [
E('button', { 'class': 'cbi-button', 'click': ui.hideModal }, [ _('Dismiss') ])
])
]);
}
return Promise.reject(e);
}).then(this.renderContents.bind(this));
},
/**
* Reset the form by re-rendering its contents. This will revert all
* unsaved user inputs to their initial form state.
*
* @returns {Promise<Node>}
* Returns a promise resolving to the toplevel form DOM node once the
* re-rendering is complete.
*/
reset: function() {
return this.renderContents();
},
/**
* Render the form markup.
*
* @returns {Promise<Node>}
* Returns a promise resolving to the toplevel form DOM node once the
* rendering is complete.
*/
render: function() {
return this.load().then(this.renderContents.bind(this));
},
/** @private */
renderContents: function() {
var mapEl = this.root || (this.root = E('div', {
'id': 'cbi-%s'.format(this.config),
'class': 'cbi-map',
'cbi-dependency-check': L.bind(this.checkDepends, this)
}));
dom.bindClassInstance(mapEl, this);
return this.renderChildren(null).then(L.bind(function(nodes) {
var initialRender = !mapEl.firstChild;
dom.content(mapEl, null);
if (this.title != null && this.title != '')
mapEl.appendChild(E('h2', { 'name': 'content' }, this.title));
if (this.description != null && this.description != '')
mapEl.appendChild(E('div', { 'class': 'cbi-map-descr' }, this.description));
if (this.tabbed)
dom.append(mapEl, E('div', { 'class': 'cbi-map-tabbed' }, nodes));
else
dom.append(mapEl, nodes);
if (!initialRender) {
mapEl.classList.remove('flash');
window.setTimeout(function() {
mapEl.classList.add('flash');
}, 1);
}
this.checkDepends();
var tabGroups = mapEl.querySelectorAll('.cbi-map-tabbed, .cbi-section-node-tabbed');
for (var i = 0; i < tabGroups.length; i++)
ui.tabs.initTabGroup(tabGroups[i].childNodes);
return mapEl;
}, this));
},
/**
* Find a form option element instance.
*
* @param {string} name
* The name or the full ID of the option element to look up.
*
* @param {string} [section_id]
* The ID of the UCI section containing the option to look up. May be
* omitted if a full ID is passed as first argument.
*
* @param {string} [config_name]
* The name of the UCI configuration the option instance belongs to.
* Defaults to the main UCI configuration of the map if omitted.
*
* @returns {Array<LuCI.form.AbstractValue,string>|null}
* Returns a two-element array containing the form option instance as
* first item and the corresponding UCI section ID as second item.
* Returns `null` if the option could not be found.
*/
lookupOption: function(name, section_id, config_name) {
var id, elem, sid, inst;
if (name.indexOf('.') > -1)
id = 'cbid.%s'.format(name);
else
id = 'cbid.%s.%s.%s'.format(config_name || this.config, section_id, name);
elem = this.findElement('data-field', id);
sid = elem ? id.split(/\./)[2] : null;
inst = elem ? dom.findClassInstance(elem) : null;
return (inst instanceof CBIAbstractValue) ? [ inst, sid ] : null;
},
/** @private */
checkDepends: function(ev, n) {
var changed = false;
for (var i = 0, s = this.children[0]; (s = this.children[i]) != null; i++)
if (s.checkDepends(ev, n))
changed = true;
if (changed && (n || 0) < 10)
this.checkDepends(ev, (n || 10) + 1);
ui.tabs.updateTabs(ev, this.root);
},
/** @private */
isDependencySatisfied: function(depends, config_name, section_id) {
var def = false;
if (!Array.isArray(depends) || !depends.length)
return true;
for (var i = 0; i < depends.length; i++) {
var istat = true,
reverse = depends[i]['!reverse'],
contains = depends[i]['!contains'];
for (var dep in depends[i]) {
if (dep == '!reverse' || dep == '!contains') {
continue;
}
else if (dep == '!default') {
def = true;
istat = false;
}
else {
var res = this.lookupOption(dep, section_id, config_name),
val = (res && res[0].isActive(res[1])) ? res[0].formvalue(res[1]) : null;
var equal = contains
? isContained(val, depends[i][dep])
: isEqual(val, depends[i][dep]);
istat = (istat && equal);
}
}
if (istat ^ reverse)
return true;
}
return def;
}
});
/**
* @constructor JSONMap
* @memberof LuCI.form
* @augments LuCI.form.Map
*
* @classdesc
*
* A `JSONMap` class functions similar to [LuCI.form.Map]{@link LuCI.form.Map}
* but uses a multidimensional JavaScript object instead of UCI configuration
* as data source.
*
* @param {Object<string, Object<string, *>|Array<Object<string, *>>>} data
* The JavaScript object to use as data source. Internally, the object is
* converted into an UCI-like format. Its toplevel keys are treated like UCI
* section types while the object or array-of-object values are treated as
* section contents.
*
* @param {string} [title]
* The title caption of the form. A form title is usually rendered as separate
* headline element before the actual form contents. If omitted, the
* corresponding headline element will not be rendered.
*
* @param {string} [description]
* The description text of the form which is usually rendered as text
* paragraph below the form title and before the actual form contents.
* If omitted, the corresponding paragraph element will not be rendered.
*/
var CBIJSONMap = CBIMap.extend(/** @lends LuCI.form.JSONMap.prototype */ {
__init__: function(data /*, ... */) {
this.super('__init__', this.varargs(arguments, 1, 'json'));
this.config = 'json';
this.parsechain = [ 'json' ];
this.data = new CBIJSONConfig(data);
}
});
/**
* @class AbstractSection
* @memberof LuCI.form
* @augments LuCI.form.AbstractElement
* @hideconstructor
* @classdesc
*
* The `AbstractSection` class serves as abstract base for the different form
* section styles implemented by `LuCI.form`. It provides the common logic for
* enumerating underlying configuration section instances, for registering
* form options and for handling tabs to segment child options.
*
* This class is private and not directly accessible by user code.
*/
var CBIAbstractSection = CBIAbstractElement.extend(/** @lends LuCI.form.AbstractSection.prototype */ {
__init__: function(map, sectionType /*, ... */) {
this.super('__init__', this.varargs(arguments, 2));
this.sectiontype = sectionType;
this.map = map;
this.config = map.config;
this.optional = true;
this.addremove = false;
this.dynamic = false;
},
/**
* Access the parent option container instance.
*
* In case this section is nested within an option element container,
* this property will hold a reference to the parent option instance.
*
* If this section is not nested, the property is `null`.
*
* @name LuCI.form.AbstractSection.prototype#parentoption
* @type LuCI.form.AbstractValue
* @readonly
*/
/**
* Enumerate the UCI section IDs covered by this form section element.
*
* @abstract
* @throws {InternalError}
* Throws an `InternalError` exception if the function is not implemented.
*
* @returns {string[]}
* Returns an array of UCI section IDs covered by this form element.
* The sections will be rendered in the same order as the returned array.
*/
cfgsections: function() {
L.error('InternalError', 'Not implemented');
},
/**
* Filter UCI section IDs to render.
*
* The filter function is invoked for each UCI section ID of a given type
* and controls whether the given UCI section is rendered or ignored by
* the form section element.
*
* The default implementation always returns `true`. User code or
* classes extending `AbstractSection` may overwrite this function with
* custom implementations.
*
* @abstract
* @param {string} section_id
* The UCI section ID to test.
*
* @returns {boolean}
* Returns `true` when the given UCI section ID should be handled and
* `false` when it should be ignored.
*/
filter: function(section_id) {
return true;
},
/**
* Load the configuration covered by this section.
*
* The `load()` function recursively walks the section element tree and
* invokes the load function of each child option element.
*
* @returns {Promise<void>}
* Returns a promise resolving once the values of all child elements have
* been loaded. The promise may reject with an error if any of the child
* elements load functions rejected with an error.
*/
load: function() {
var section_ids = this.cfgsections(),
tasks = [];
if (Array.isArray(this.children))
for (var i = 0; i < section_ids.length; i++)
tasks.push(this.loadChildren(section_ids[i])
.then(Function.prototype.bind.call(function(section_id, set_values) {
for (var i = 0; i < set_values.length; i++)
this.children[i].cfgvalue(section_id, set_values[i]);
}, this, section_ids[i])));
return Promise.all(tasks);
},
/**
* Parse this sections form input.
*
* The `parse()` function recursively walks the section element tree and
* triggers input value reading and validation for each encountered child
* option element.
*
* Options which are hidden due to unsatisfied dependencies are skipped.
*
* @returns {Promise<void>}
* Returns a promise resolving once the values of all child elements have
* been parsed. The returned promise is rejected if any parsed values are
* not meeting the validation constraints of their respective elements.
*/
parse: function() {
var section_ids = this.cfgsections(),
tasks = [];
if (Array.isArray(this.children))
for (var i = 0; i < section_ids.length; i++)
for (var j = 0; j < this.children.length; j++)
tasks.push(this.children[j].parse(section_ids[i]));
return Promise.all(tasks);
},
/**
* Add an option tab to the section.
*
* The child option elements of a section may be divided into multiple
* tabs to provide a better overview to the user.
*
* Before options can be moved into a tab pane, the corresponding tab
* has to be defined first, which is done by calling this function.
*
* Note that once tabs are defined, user code must use the `taboption()`
* method to add options to specific tabs. Option elements added by
* `option()` will not be assigned to any tab and not be rendered in this
* case.
*
* @param {string} name
* The name of the tab to register. It may be freely chosen and just serves
* as an identifier to differentiate tabs.
*
* @param {string} title
* The human readable caption of the tab.
*
* @param {string} [description]
* An additional description text for the corresponding tab pane. It is
* displayed as text paragraph below the tab but before the tab pane
* contents. If omitted, no description will be rendered.
*
* @throws {Error}
* Throws an exception if a tab with the same `name` already exists.
*/
tab: function(name, title, description) {
if (this.tabs && this.tabs[name])
throw 'Tab already declared';
var entry = {
name: name,
title: title,
description: description,
children: []
};
this.tabs = this.tabs || [];
this.tabs.push(entry);
this.tabs[name] = entry;
this.tab_names = this.tab_names || [];
this.tab_names.push(name);
},
/**
* Add a configuration option widget to the section.
*
* Note that [taboption()]{@link LuCI.form.AbstractSection#taboption}
* should be used instead if this form section element uses tabs.
*
* @param {LuCI.form.AbstractValue} optionclass
* The option class to use for rendering the configuration option. Note
* that this value must be the class itself, not a class instance obtained
* from calling `new`. It must also be a class derived from
* [LuCI.form.AbstractSection]{@link LuCI.form.AbstractSection}.
*
* @param {...*} classargs
* Additional arguments which are passed as-is to the constructor of the
* given option class. Refer to the class specific constructor
* documentation for details.
*
* @throws {TypeError}
* Throws a `TypeError` exception in case the passed class value is not a
* descendant of `AbstractValue`.
*
* @returns {LuCI.form.AbstractValue}
* Returns the instantiated option class instance.
*/
option: function(cbiClass /*, ... */) {
if (!CBIAbstractValue.isSubclass(cbiClass))
throw L.error('TypeError', 'Class must be a descendant of CBIAbstractValue');
var obj = cbiClass.instantiate(this.varargs(arguments, 1, this.map, this));
this.append(obj);
return obj;
},
/**
* Add a configuration option widget to a tab of the section.
*
* @param {string} tabName
* The name of the section tab to add the option element to.
*
* @param {LuCI.form.AbstractValue} optionclass
* The option class to use for rendering the configuration option. Note
* that this value must be the class itself, not a class instance obtained
* from calling `new`. It must also be a class derived from
* [LuCI.form.AbstractSection]{@link LuCI.form.AbstractSection}.
*
* @param {...*} classargs
* Additional arguments which are passed as-is to the constructor of the
* given option class. Refer to the class specific constructor
* documentation for details.
*
* @throws {ReferenceError}
* Throws a `ReferenceError` exception when the given tab name does not
* exist.
*
* @throws {TypeError}
* Throws a `TypeError` exception in case the passed class value is not a
* descendant of `AbstractValue`.
*
* @returns {LuCI.form.AbstractValue}
* Returns the instantiated option class instance.
*/
taboption: function(tabName /*, ... */) {
if (!this.tabs || !this.tabs[tabName])
throw L.error('ReferenceError', 'Associated tab not declared');
var obj = this.option.apply(this, this.varargs(arguments, 1));
obj.tab = tabName;
this.tabs[tabName].children.push(obj);
return obj;
},
/**
* Query underlying option configuration values.
*
* This function is sensitive to the amount of arguments passed to it;
* if only one argument is specified, the configuration values of all
* options within this section are returned as dictionary.
*
* If both the section ID and an option name are supplied, this function
* returns the configuration value of the specified option only.
*
* @param {string} section_id
* The configuration section ID
*
* @param {string} [option]
* The name of the option to query
*
* @returns {null|string|string[]|Object<string, null|string|string[]>}
* Returns either a dictionary of option names and their corresponding
* configuration values or just a single configuration value, depending
* on the amount of passed arguments.
*/
cfgvalue: function(section_id, option) {
var rv = (arguments.length == 1) ? {} : null;
for (var i = 0, o; (o = this.children[i]) != null; i++)
if (rv)
rv[o.option] = o.cfgvalue(section_id);
else if (o.option == option)
return o.cfgvalue(section_id);
return rv;
},
/**
* Query underlying option widget input values.
*
* This function is sensitive to the amount of arguments passed to it;
* if only one argument is specified, the widget input values of all
* options within this section are returned as dictionary.
*
* If both the section ID and an option name are supplied, this function
* returns the widget input value of the specified option only.
*
* @param {string} section_id
* The configuration section ID
*
* @param {string} [option]
* The name of the option to query
*
* @returns {null|string|string[]|Object<string, null|string|string[]>}
* Returns either a dictionary of option names and their corresponding
* widget input values or just a single widget input value, depending
* on the amount of passed arguments.
*/
formvalue: function(section_id, option) {
var rv = (arguments.length == 1) ? {} : null;
for (var i = 0, o; (o = this.children[i]) != null; i++) {
var func = this.map.root ? this.children[i].formvalue : this.children[i].cfgvalue;
if (rv)
rv[o.option] = func.call(o, section_id);
else if (o.option == option)
return func.call(o, section_id);
}
return rv;
},
/**
* Obtain underlying option LuCI.ui widget instances.
*
* This function is sensitive to the amount of arguments passed to it;
* if only one argument is specified, the LuCI.ui widget instances of all
* options within this section are returned as dictionary.
*
* If both the section ID and an option name are supplied, this function
* returns the LuCI.ui widget instance value of the specified option only.
*
* @param {string} section_id
* The configuration section ID
*
* @param {string} [option]
* The name of the option to query
*
* @returns {null|LuCI.ui.AbstractElement|Object<string, null|LuCI.ui.AbstractElement>}
* Returns either a dictionary of option names and their corresponding
* widget input values or just a single widget input value, depending
* on the amount of passed arguments.
*/
getUIElement: function(section_id, option) {
var rv = (arguments.length == 1) ? {} : null;
for (var i = 0, o; (o = this.children[i]) != null; i++)
if (rv)
rv[o.option] = o.getUIElement(section_id);
else if (o.option == option)
return o.getUIElement(section_id);
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 = [];
if (!this.tabs)
return this.renderOptions(null, section_id);
for (var i = 0; i < this.tab_names.length; i++)
renderTasks.push(this.renderOptions(this.tab_names[i], section_id));
return Promise.all(renderTasks)
.then(this.renderTabContainers.bind(this, section_id));
},
/** @private */
renderTabContainers: function(section_id, nodes) {
var config_name = this.uciconfig || this.map.config,
containerEls = E([]);
for (var i = 0; i < nodes.length; i++) {
var tab_name = this.tab_names[i],
tab_data = this.tabs[tab_name],
containerEl = E('div', {
'id': 'container.%s.%s.%s'.format(config_name, section_id, tab_name),
'data-tab': tab_name,
'data-tab-title': tab_data.title,
'data-tab-active': tab_name === this.selected_tab
});
if (tab_data.description != null && tab_data.description != '')
containerEl.appendChild(
E('div', { 'class': 'cbi-tab-descr' }, tab_data.description));
containerEl.appendChild(nodes[i]);
containerEls.appendChild(containerEl);
}
return containerEls;
},
/** @private */
renderOptions: function(tab_name, section_id) {
var in_table = (this instanceof CBITableSection);
return this.renderChildren(tab_name, section_id, in_table).then(function(nodes) {
var optionEls = E([]);
for (var i = 0; i < nodes.length; i++)
optionEls.appendChild(nodes[i]);
return optionEls;
});
},
/** @private */
checkDepends: function(ev, n) {
var changed = false,
sids = this.cfgsections();
for (var i = 0, sid = sids[0]; (sid = sids[i]) != null; i++) {
for (var j = 0, o = this.children[0]; (o = this.children[j]) != null; j++) {
var isActive = o.isActive(sid),
isSatisified = o.checkDepends(sid);
if (isActive != isSatisified) {
o.setActive(sid, !isActive);
isActive = !isActive;
changed = true;
}
if (!n && isActive)
o.triggerValidation(sid);
}
}
return changed;
}
});
var isEqual = function(x, y) {
if (typeof(y) == 'object' && y instanceof RegExp)
return (x == null) ? false : y.test(x);
if (x != null && y != null && typeof(x) != typeof(y))
return false;
if ((x == null && y != null) || (x != null && y == null))
return false;
if (Array.isArray(x)) {
if (x.length != y.length)
return false;
for (var i = 0; i < x.length; i++)
if (!isEqual(x[i], y[i]))
return false;
}
else if (typeof(x) == 'object') {
for (var k in x) {
if (x.hasOwnProperty(k) && !y.hasOwnProperty(k))
return false;
if (!isEqual(x[k], y[k]))
return false;
}
for (var k in y)
if (y.hasOwnProperty(k) && !x.hasOwnProperty(k))
return false;
}
else if (x != y) {
return false;
}
return true;
};
var isContained = function(x, y) {
if (Array.isArray(x)) {
for (var i = 0; i < x.length; i++)
if (x[i] == y)
return true;
}
else if (L.isObject(x)) {
if (x.hasOwnProperty(y) && x[y] != null)
return true;
}
else if (typeof(x) == 'string') {
return (x.indexOf(y) > -1);
}
return false;
};
/**
* @class AbstractValue
* @memberof LuCI.form
* @augments LuCI.form.AbstractElement
* @hideconstructor
* @classdesc
*
* The `AbstractValue` class serves as abstract base for the different form
* option styles implemented by `LuCI.form`. It provides the common logic for
* handling option input values, for dependencies among options and for
* validation constraints that should be applied to entered values.
*
* This class is private and not directly accessible by user code.
*/
var CBIAbstractValue = CBIAbstractElement.extend(/** @lends LuCI.form.AbstractValue.prototype */ {
__init__: function(map, section, option /*, ... */) {
this.super('__init__', this.varargs(arguments, 3));
this.section = section;
this.option = option;
this.map = map;
this.config = map.config;
this.deps = [];
this.initial = {};
this.rmempty = true;
this.default = null;
this.size = null;
this.optional = false;
this.retain = false;
},
/**
* If set to `false`, the underlying option value is retained upon saving
* the form when the option element is disabled due to unsatisfied
* dependency constraints.
*
* @name LuCI.form.AbstractValue.prototype#rmempty
* @type boolean
* @default true
*/
/**
* If set to `true`, the underlying ui input widget is allowed to be empty,
* otherwise the option element is marked invalid when no value is entered
* or selected by the user.
*
* @name LuCI.form.AbstractValue.prototype#optional
* @type boolean
* @default false
*/
/**
* If set to `true`, the underlying ui input widget value is not cleared
* from the configuration on unsatisfied dependencies. The default behavior
* is to remove the values of all options whose dependencies are not
* fulfilled.
*
* @name LuCI.form.AbstractValue.prototype#retain
* @type boolean
* @default false
*/
/**
* Sets a default value to use when the underlying UCI option is not set.
*
* @name LuCI.form.AbstractValue.prototype#default
* @type *
* @default null
*/
/**
* Specifies a datatype constraint expression to validate input values
* against. Refer to {@link LuCI.validation} for details on the format.
*
* If the user entered input does not match the datatype validation, the
* option element is marked as invalid.
*
* @name LuCI.form.AbstractValue.prototype#datatype
* @type string
* @default null
*/
/**
* Specifies a custom validation function to test the user input for
* validity. The validation function must return `true` to accept the
* value. Any other return value type is converted to a string and
* displayed to the user as validation error message.
*
* If the user entered input does not pass the validation function, the
* option element is marked as invalid.
*
* @name LuCI.form.AbstractValue.prototype#validate
* @type function
* @default null
*/
/**
* Override the UCI configuration name to read the option value from.
*
* By default, the configuration name is inherited from the parent Map.
* By setting this property, a deviating configuration may be specified.
*
* The default is null, means inheriting from the parent form.
*
* @name LuCI.form.AbstractValue.prototype#uciconfig
* @type string
* @default null
*/
/**
* Override the UCI section name to read the option value from.
*
* By default, the section ID is inherited from the parent section element.
* By setting this property, a deviating section may be specified.
*
* The default is null, means inheriting from the parent section.
*
* @name LuCI.form.AbstractValue.prototype#ucisection
* @type string
* @default null
*/
/**
* Override the UCI option name to read the value from.
*
* By default, the elements name, which is passed as third argument to
* the constructor, is used as UCI option name. By setting this property,
* a deviating UCI option may be specified.
*
* The default is null, means using the option element name.
*
* @name LuCI.form.AbstractValue.prototype#ucioption
* @type string
* @default null
*/
/**
* Mark grid section option element as editable.
*
* Options which are displayed in the table portion of a `GridSection`
* instance are rendered as readonly text by default. By setting the
* `editable` property of a child option element to `true`, that element
* is rendered as full input widget within its cell instead of a text only
* preview.
*
* This property has no effect on options that are not children of grid
* section elements.
*
* @name LuCI.form.AbstractValue.prototype#editable
* @type boolean
* @default false
*/
/**
* Move grid section option element into the table, the modal popup or both.
*
* If this property is `null` (the default), the option element is
* displayed in both the table preview area and the per-section instance
* modal popup of a grid section. When it is set to `false` the option
* is only shown in the table but not the modal popup. When set to `true`,
* the option is only visible in the modal popup but not the table.
*
* This property has no effect on options that are not children of grid
* section elements.
*
* @name LuCI.form.AbstractValue.prototype#modalonly
* @type boolean
* @default null
*/
/**
* Make option element readonly.
*
* This property defaults to the readonly state of the parent form element.
* When set to `true`, the underlying widget is rendered in disabled state,
* means its contents cannot be changed and the widget cannot be interacted
* with.
*
* @name LuCI.form.AbstractValue.prototype#readonly
* @type boolean
* @default false
*/
/**
* Override the cell width of a table or grid section child option.
*
* If the property is set to a numeric value, it is treated as pixel width
* which is set on the containing cell element of the option, essentially
* forcing a certain column width. When the property is set to a string
* value, it is applied as-is to the CSS `width` property.
*
* This property has no effect on options that are not children of grid or
* table section elements.
*
* @name LuCI.form.AbstractValue.prototype#width
* @type number|string
* @default null
*/
/**
* Register a custom value change handler.
*
* If this property is set to a function value, the function is invoked
* whenever the value of the underlying UI input element is changing.
*
* The invoked handler function will receive the DOM click element as
* first and the underlying configuration section ID as well as the input
* value as second and third argument respectively.
*
* @name LuCI.form.AbstractValue.prototype#onchange
* @type function
* @default null
*/
/**
* Add a dependency constraint to the option.
*
* Dependency constraints allow making the presence of option elements
* dependent on the current values of certain other options within the
* same form. An option element with unsatisfied dependencies will be
* hidden from the view and its current value is omitted when saving.
*
* Multiple constraints (that is, multiple calls to `depends()`) are
* treated as alternatives, forming a logical "or" expression.
*
* By passing an object of name => value pairs as first argument, it is
* possible to depend on multiple options simultaneously, allowing to form
* a logical "and" expression.
*
* Option names may be given in "dot notation" which allows to reference
* option elements outside the current form section. If a name without
* dot is specified, it refers to an option within the same configuration
* section. If specified as <code>configname.sectionid.optionname</code>,
* options anywhere within the same form may be specified.
*
* The object notation also allows for a number of special keys which are
* not treated as option names but as modifiers to influence the dependency
* constraint evaluation. The associated value of these special "tag" keys
* is ignored. The recognized tags are:
*
* <ul>
* <li>
* <code>!reverse</code><br>
* Invert the dependency, instead of requiring another option to be
* equal to the dependency value, that option should <em>not</em> be
* equal.
* </li>
* <li>
* <code>!contains</code><br>
* Instead of requiring an exact match, the dependency is considered
* satisfied when the dependency value is contained within the option
* value.
* </li>
* <li>
* <code>!default</code><br>
* The dependency is always satisfied
* </li>
* </ul>
*
* Examples:
*
* <ul>
* <li>
* <code>opt.depends("foo", "test")</code><br>
* Require the value of `foo` to be `test`.
* </li>
* <li>
* <code>opt.depends({ foo: "test" })</code><br>
* Equivalent to the previous example.
* </li>
* <li>
* <code>opt.depends({ foo: /test/ })</code><br>
* Require the value of `foo` to match the regular expression `/test/`.
* </li>
* <li>
* <code>opt.depends({ foo: "test", bar: "qrx" })</code><br>
* Require the value of `foo` to be `test` and the value of `bar` to be
* `qrx`.
* </li>
* <li>
* <code>opt.depends({ foo: "test" })<br>
* opt.depends({ bar: "qrx" })</code><br>
* Require either <code>foo</code> to be set to <code>test</code>,
* <em>or</em> the <code>bar</code> option to be <code>qrx</code>.
* </li>
* <li>
* <code>opt.depends("test.section1.foo", "bar")</code><br>
* Require the "foo" form option within the "section1" section to be
* set to "bar".
* </li>
* <li>
* <code>opt.depends({ foo: "test", "!contains": true })</code><br>
* Require the "foo" option value to contain the substring "test".
* </li>
* </ul>
*
* @param {string|Object<string, string|RegExp>} field
* The name of the option to depend on or an object describing multiple
* dependencies which must be satisfied (a logical "and" expression).
*
* @param {string|RegExp} value
* When invoked with a plain option name as first argument, this parameter
* specifies the expected value. In case an object is passed as first
* argument, this parameter is ignored.
*/
depends: function(field, value) {
var deps;
if (typeof(field) === 'string')
deps = {}, deps[field] = value;
else
deps = field;
this.deps.push(deps);
},
/** @private */
transformDepList: function(section_id, deplist) {
var list = deplist || this.deps,
deps = [];
if (Array.isArray(list)) {
for (var i = 0; i < list.length; i++) {
var dep = {};
for (var k in list[i]) {
if (list[i].hasOwnProperty(k)) {
if (k.charAt(0) === '!')
dep[k] = list[i][k];
else if (k.indexOf('.') !== -1)
dep['cbid.%s'.format(k)] = list[i][k];
else
dep['cbid.%s.%s.%s'.format(
this.uciconfig || this.section.uciconfig || this.map.config,
this.ucisection || section_id,
k
)] = list[i][k];
}
}
for (var k in dep) {
if (dep.hasOwnProperty(k)) {
deps.push(dep);
break;
}
}
}
}
return deps;
},
/** @private */
transformChoices: function() {
if (!Array.isArray(this.keylist) || this.keylist.length == 0)
return null;
var choices = {};
for (var i = 0; i < this.keylist.length; i++)
choices[this.keylist[i]] = this.vallist[i];
return choices;
},
/** @private */
checkDepends: function(section_id) {
var config_name = this.uciconfig || this.section.uciconfig || this.map.config,
active = this.map.isDependencySatisfied(this.deps, config_name, section_id);
if (active)
this.updateDefaultValue(section_id);
return active;
},
/** @private */
updateDefaultValue: function(section_id) {
if (!L.isObject(this.defaults))
return;
var config_name = this.uciconfig || this.section.uciconfig || this.map.config,
cfgvalue = L.toArray(this.cfgvalue(section_id))[0],
default_defval = null, satisified_defval = null;
for (var value in this.defaults) {
if (!this.defaults[value] || this.defaults[value].length == 0) {
default_defval = value;
continue;
}
else if (this.map.isDependencySatisfied(this.defaults[value], config_name, section_id)) {
satisified_defval = value;
break;
}
}
if (satisified_defval == null)
satisified_defval = default_defval;
var node = this.map.findElement('id', this.cbid(section_id));
if (node && node.getAttribute('data-changed') != 'true' && satisified_defval != null && cfgvalue == null)
dom.callClassMethod(node, 'setValue', satisified_defval);
this.default = satisified_defval;
},
/**
* Obtain the internal ID ("cbid") of the element instance.
*
* Since each form section element may map multiple underlying
* configuration sections, the configuration section ID is required to
* form a fully qualified ID pointing to the specific element instance
* within the given specific section.
*
* @param {string} section_id
* The configuration section ID
*
* @throws {TypeError}
* Throws a `TypeError` exception when no `section_id` was specified.
*
* @returns {string}
* Returns the element ID.
*/
cbid: function(section_id) {
if (section_id == null)
L.error('TypeError', 'Section ID required');
return 'cbid.%s.%s.%s'.format(
this.uciconfig || this.section.uciconfig || this.map.config,
section_id, this.option);
},
/**
* Load the underlying configuration value.
*
* The default implementation of this method reads and returns the
* underlying UCI option value (or the related JavaScript property for
* `JSONMap` instances). It may be overwritten by user code to load data
* from nonstandard sources.
*
* @param {string} section_id
* The configuration section ID
*
* @throws {TypeError}
* Throws a `TypeError` exception when no `section_id` was specified.
*
* @returns {*|Promise<*>}
* Returns the configuration value to initialize the option element with.
* The return value of this function is filtered through `Promise.resolve()`
* so it may return promises if overridden by user code.
*/
load: function(section_id) {
if (section_id == null)
L.error('TypeError', 'Section ID required');
return this.map.data.get(
this.uciconfig || this.section.uciconfig || this.map.config,
this.ucisection || section_id,
this.ucioption || this.option);
},
/**
* Obtain the underlying `LuCI.ui` element instance.
*
* @param {string} section_id
* The configuration section ID
*
* @throws {TypeError}
* Throws a `TypeError` exception when no `section_id` was specified.
*
* @return {LuCI.ui.AbstractElement|null}
* Returns the `LuCI.ui` element instance or `null` in case the form
* option implementation does not use `LuCI.ui` widgets.
*/
getUIElement: function(section_id) {
var node = this.map.findElement('id', this.cbid(section_id)),
inst = node ? dom.findClassInstance(node) : null;
return (inst instanceof ui.AbstractElement) ? inst : null;
},
/**
* Query the underlying configuration value.
*
* The default implementation of this method returns the cached return
* value of [load()]{@link LuCI.form.AbstractValue#load}. It may be
* overwritten by user code to obtain the configuration value in a
* different way.
*
* @param {string} section_id
* The configuration section ID
*
* @throws {TypeError}
* Throws a `TypeError` exception when no `section_id` was specified.
*
* @returns {*}
* Returns the configuration value.
*/
cfgvalue: function(section_id, set_value) {
if (section_id == null)
L.error('TypeError', 'Section ID required');
if (arguments.length == 2) {
this.data = this.data || {};
this.data[section_id] = set_value;
}
return this.data ? this.data[section_id] : null;
},
/**
* Query the current form input value.
*
* The default implementation of this method returns the current input
* value of the underlying [LuCI.ui]{@link LuCI.ui.AbstractElement} widget.
* It may be overwritten by user code to handle input values differently.
*
* @param {string} section_id
* The configuration section ID
*
* @throws {TypeError}
* Throws a `TypeError` exception when no `section_id` was specified.
*
* @returns {*}
* Returns the current input value.
*/
formvalue: function(section_id) {
var elem = this.getUIElement(section_id);
return elem ? elem.getValue() : null;
},
/**
* Obtain a textual input representation.
*
* The default implementation of this method returns the HTML escaped
* current input value of the underlying
* [LuCI.ui]{@link LuCI.ui.AbstractElement} widget. User code or specific
* option element implementations may overwrite this function to apply a
* different logic, e.g. to return `Yes` or `No` depending on the checked
* state of checkbox elements.
*
* @param {string} section_id
* The configuration section ID
*
* @throws {TypeError}
* Throws a `TypeError` exception when no `section_id` was specified.
*
* @returns {string}
* Returns the text representation of the current input value.
*/
textvalue: function(section_id) {
var cval = this.cfgvalue(section_id);
if (cval == null)
cval = this.default;
if (Array.isArray(cval))
cval = cval.join(' ');
return (cval != null) ? '%h'.format(cval) : null;
},
/**
* Apply custom validation logic.
*
* This method is invoked whenever incremental validation is performed on
* the user input, e.g. on keyup or blur events.
*
* The default implementation of this method does nothing and always
* returns `true`. User code may overwrite this method to provide
* additional validation logic which is not covered by data type
* constraints.
*
* @abstract
* @param {string} section_id
* The configuration section ID
*
* @param {*} value
* The value to validate
*
* @returns {*}
* The method shall return `true` to accept the given value. Any other
* return value is treated as failure, converted to a string and displayed
* as error message to the user.
*/
validate: function(section_id, value) {
return true;
},
/**
* Test whether the input value is currently valid.
*
* @param {string} section_id
* The configuration section ID
*
* @returns {boolean}
* Returns `true` if the input value currently is valid, otherwise it
* returns `false`.
*/
isValid: function(section_id) {
var elem = this.getUIElement(section_id);
return elem ? elem.isValid() : true;
},
/**
* Returns the current validation error for this input.
*
* @param {string} section_id
* The configuration section ID
*
* @returns {string}
* The validation error at this time
*/
getValidationError: function (section_id) {
var elem = this.getUIElement(section_id);
return elem ? elem.getValidationError() : '';
},
/**
* Test whether the option element is currently active.
*
* An element is active when it is not hidden due to unsatisfied dependency
* constraints.
*
* @param {string} section_id
* The configuration section ID
*
* @returns {boolean}
* Returns `true` if the option element currently is active, otherwise it
* returns `false`.
*/
isActive: function(section_id) {
var field = this.map.findElement('data-field', this.cbid(section_id));
return (field != null && !field.classList.contains('hidden'));
},
/** @private */
setActive: function(section_id, active) {
var field = this.map.findElement('data-field', this.cbid(section_id));
if (field && field.classList.contains('hidden') == active) {
field.classList[active ? 'remove' : 'add']('hidden');
if (dom.matches(field.parentNode, '.td.cbi-value-field'))
field.parentNode.classList[active ? 'remove' : 'add']('inactive');
return true;
}
return false;
},
/** @private */
triggerValidation: function(section_id) {
var elem = this.getUIElement(section_id);
return elem ? elem.triggerValidation() : true;
},
/**
* Parse the option element input.
*
* The function is invoked when the `parse()` method has been invoked on
* the parent form and triggers input value reading and validation.
*
* @param {string} section_id
* The configuration section ID
*
* @returns {Promise<void>}
* Returns a promise resolving once the input value has been read and
* validated or rejecting in case the input value does not meet the
* validation constraints.
*/
parse: function(section_id) {
var active = this.isActive(section_id);
if (active && !this.isValid(section_id)) {
var title = this.stripTags(this.title).trim(),
error = this.getValidationError(section_id);
return Promise.reject(new TypeError(
_('Option "%s" contains an invalid input value.').format(title || this.option) + ' ' + error));
}
if (active) {
var cval = this.cfgvalue(section_id),
fval = this.formvalue(section_id);
if (fval == null || fval == '') {
if (this.rmempty || this.optional) {
return Promise.resolve(this.remove(section_id));
}
else {
var title = this.stripTags(this.title).trim();
return Promise.reject(new TypeError(
_('Option "%s" must not be empty.').format(title || this.option)));
}
}
else if (this.forcewrite || !isEqual(cval, fval)) {
return Promise.resolve(this.write(section_id, fval));
}
}
else if (!this.retain) {
return Promise.resolve(this.remove(section_id));
}
return Promise.resolve();
},
/**
* Write the current input value into the configuration.
*
* This function is invoked upon saving the parent form when the option
* element is valid and when its input value has been changed compared to
* the initial value returned by
* [cfgvalue()]{@link LuCI.form.AbstractValue#cfgvalue}.
*
* The default implementation simply sets the given input value in the
* UCI configuration (or the associated JavaScript object property in
* case of `JSONMap` forms). It may be overwritten by user code to
* implement alternative save logic, e.g. to transform the input value
* before it is written.
*
* @param {string} section_id
* The configuration section ID
*
* @param {string|string[]} formvalue
* The input value to write.
*/
write: function(section_id, formvalue) {
return this.map.data.set(
this.uciconfig || this.section.uciconfig || this.map.config,
this.ucisection || section_id,
this.ucioption || this.option,
formvalue);
},
/**
* Remove the corresponding value from the configuration.
*
* This function is invoked upon saving the parent form when the option
* element has been hidden due to unsatisfied dependencies or when the
* user cleared the input value and the option is marked optional.
*
* The default implementation simply removes the associated option from the
* UCI configuration (or the associated JavaScript object property in
* case of `JSONMap` forms). It may be overwritten by user code to
* implement alternative removal logic, e.g. to retain the original value.
*
* @param {string} section_id
* The configuration section ID
*/
remove: function(section_id) {
var this_cfg = this.uciconfig || this.section.uciconfig || this.map.config,
this_sid = this.ucisection || section_id,
this_opt = this.ucioption || this.option;
for (var i = 0; i < this.section.children.length; i++) {
var sibling = this.section.children[i];
if (sibling === this || sibling.ucioption == null)
continue;
var sibling_cfg = sibling.uciconfig || sibling.section.uciconfig || sibling.map.config,
sibling_sid = sibling.ucisection || section_id,
sibling_opt = sibling.ucioption || sibling.option;
if (this_cfg != sibling_cfg || this_sid != sibling_sid || this_opt != sibling_opt)
continue;
if (!sibling.isActive(section_id))
continue;
/* found another active option aliasing the same uci option name,
* so we can't remove the value */
return;
}
this.map.data.unset(this_cfg, this_sid, this_opt);
}
});
/**
* @class TypedSection
* @memberof LuCI.form
* @augments LuCI.form.AbstractSection
* @hideconstructor
* @classdesc
*
* The `TypedSection` class maps all or - if `filter()` is overwritten - a
* subset of the underlying UCI configuration sections of a given type.
*
* Layout wise, the configuration section instances mapped by the section
* element (sometimes referred to as "section nodes") are stacked beneath
* each other in a single column, with an optional section remove button next
* to each section node and a section add button at the end, depending on the
* value of the `addremove` property.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [section()]{@link LuCI.form.Map#section}.
*
* @param {string} section_type
* The type of the UCI section to map.
*
* @param {string} [title]
* The title caption of the form section element.
*
* @param {string} [description]
* The description text of the form section element.
*/
var CBITypedSection = CBIAbstractSection.extend(/** @lends LuCI.form.TypedSection.prototype */ {
__name__: 'CBI.TypedSection',
/**
* If set to `true`, the user may add or remove instances from the form
* section widget, otherwise only preexisting sections may be edited.
* The default is `false`.
*
* @name LuCI.form.TypedSection.prototype#addremove
* @type boolean
* @default false
*/
/**
* If set to `true`, mapped section instances are treated as anonymous
* UCI sections, which means that section instance elements will be
* rendered without title element and that no name is required when adding
* new sections. The default is `false`.
*
* @name LuCI.form.TypedSection.prototype#anonymous
* @type boolean
* @default false
*/
/**
* When set to `true`, instead of rendering section instances one below
* another, treat each instance as separate tab pane and render a tab menu
* at the top of the form section element, allowing the user to switch
* among instances. The default is `false`.
*
* @name LuCI.form.TypedSection.prototype#tabbed
* @type boolean
* @default false
*/
/**
* Override the caption used for the section add button at the bottom of
* the section form element. If set to a string, it will be used as-is,
* if set to a function, the function will be invoked and its return value
* is used as caption, after converting it to a string. If this property
* is not set, the default is `Add`.
*
* @name LuCI.form.TypedSection.prototype#addbtntitle
* @type string|function
* @default null
*/
/**
* Override the UCI configuration name to read the section IDs from. By
* default, the configuration name is inherited from the parent `Map`.
* By setting this property, a deviating configuration may be specified.
* The default is `null`, means inheriting from the parent form.
*
* @name LuCI.form.TypedSection.prototype#uciconfig
* @type string
* @default null
*/
/** @override */
cfgsections: function() {
return this.map.data.sections(this.uciconfig || this.map.config, this.sectiontype)
.map(function(s) { return s['.name'] })
.filter(L.bind(this.filter, this));
},
/** @private */
handleAdd: function(ev, name) {
var config_name = this.uciconfig || this.map.config;
this.map.data.add(config_name, this.sectiontype, name);
return this.map.save(null, true);
},
/** @private */
handleRemove: function(section_id, ev) {
var config_name = this.uciconfig || this.map.config;
this.map.data.remove(config_name, section_id);
return this.map.save(null, true);
},
/** @private */
renderSectionAdd: function(extra_class) {
if (!this.addremove)
return E([]);
var createEl = E('div', { 'class': 'cbi-section-create' }),
config_name = this.uciconfig || this.map.config,
btn_title = this.titleFn('addbtntitle');
if (extra_class != null)
createEl.classList.add(extra_class);
if (this.anonymous) {
createEl.appendChild(E('button', {
'class': 'cbi-button cbi-button-add',
'title': btn_title || _('Add'),
'click': ui.createHandlerFn(this, 'handleAdd'),
'disabled': this.map.readonly || null
}, [ btn_title || _('Add') ]));
}
else {
var nameEl = E('input', {
'type': 'text',
'class': 'cbi-section-create-name',
'disabled': this.map.readonly || null
});
dom.append(createEl, [
E('div', {}, nameEl),
E('button', {
'class': 'cbi-button cbi-button-add',
'title': btn_title || _('Add'),
'click': ui.createHandlerFn(this, function(ev) {
if (nameEl.classList.contains('cbi-input-invalid'))
return;
return this.handleAdd(ev, nameEl.value);
}),
'disabled': this.map.readonly || true
}, [ btn_title || _('Add') ])
]);
if (this.map.readonly !== true) {
ui.addValidator(nameEl, 'uciname', true, function(v) {
var button = createEl.querySelector('.cbi-section-create > .cbi-button-add');
if (v !== '') {
button.disabled = null;
return true;
}
else {
button.disabled = true;
return _('Expecting: %s').format(_('non-empty value'));
}
}, 'blur', 'keyup');
}
}
return createEl;
},
/** @private */
renderSectionPlaceholder: function() {
return E('em', _('This section contains no values yet'));
},
/** @private */
renderContents: function(cfgsections, nodes) {
var section_id = null,
config_name = this.uciconfig || this.map.config,
sectionEl = E('div', {
'id': 'cbi-%s-%s'.format(config_name, this.sectiontype),
'class': 'cbi-section',
'data-tab': (this.map.tabbed && !this.parentoption) ? this.sectiontype : null,
'data-tab-title': (this.map.tabbed && !this.parentoption) ? this.title || this.sectiontype : null
});
if (this.title != null && this.title != '')
sectionEl.appendChild(E('h3', {}, this.title));
if (this.description != null && this.description != '')
sectionEl.appendChild(E('div', { 'class': 'cbi-section-descr' }, this.description));
for (var i = 0; i < nodes.length; i++) {
if (this.addremove) {
sectionEl.appendChild(
E('div', { 'class': 'cbi-section-remove right' },
E('button', {
'class': 'cbi-button',
'name': 'cbi.rts.%s.%s'.format(config_name, cfgsections[i]),
'data-section-id': cfgsections[i],
'click': ui.createHandlerFn(this, 'handleRemove', cfgsections[i]),
'disabled': this.map.readonly || null
}, [ _('Delete') ])));
}
if (!this.anonymous)
sectionEl.appendChild(E('h3', cfgsections[i].toUpperCase()));
sectionEl.appendChild(E('div', {
'id': 'cbi-%s-%s'.format(config_name, cfgsections[i]),
'class': this.tabs
? 'cbi-section-node cbi-section-node-tabbed' : 'cbi-section-node',
'data-section-id': cfgsections[i]
}, nodes[i]));
}
if (nodes.length == 0)
sectionEl.appendChild(this.renderSectionPlaceholder());
sectionEl.appendChild(this.renderSectionAdd());
dom.bindClassInstance(sectionEl, this);
return sectionEl;
},
/** @override */
render: function() {
var cfgsections = this.cfgsections(),
renderTasks = [];
for (var i = 0; i < cfgsections.length; i++)
renderTasks.push(this.renderUCISection(cfgsections[i]));
return Promise.all(renderTasks).then(this.renderContents.bind(this, cfgsections));
}
});
/**
* @class TableSection
* @memberof LuCI.form
* @augments LuCI.form.TypedSection
* @hideconstructor
* @classdesc
*
* The `TableSection` class maps all or - if `filter()` is overwritten - a
* subset of the underlying UCI configuration sections of a given type.
*
* Layout wise, the configuration section instances mapped by the section
* element (sometimes referred to as "section nodes") are rendered as rows
* within an HTML table element, with an optional section remove button in the
* last column and a section add button below the table, depending on the
* value of the `addremove` property.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [section()]{@link LuCI.form.Map#section}.
*
* @param {string} section_type
* The type of the UCI section to map.
*
* @param {string} [title]
* The title caption of the form section element.
*
* @param {string} [description]
* The description text of the form section element.
*/
var CBITableSection = CBITypedSection.extend(/** @lends LuCI.form.TableSection.prototype */ {
__name__: 'CBI.TableSection',
/**
* Override the per-section instance title caption shown in the first
* column of the table unless `anonymous` is set to true. If set to a
* string, it will be used as `String.format()` pattern with the name of
* the underlying UCI section as first argument, if set to a function, the
* function will be invoked with the section name as first argument and
* its return value is used as caption, after converting it to a string.
* If this property is not set, the default is the name of the underlying
* UCI configuration section.
*
* @name LuCI.form.TableSection.prototype#sectiontitle
* @type string|function
* @default null
*/
/**
* Override the per-section instance modal popup title caption shown when
* clicking the `More…` button in a section specifying `max_cols`. If set
* to a string, it will be used as `String.format()` pattern with the name
* of the underlying UCI section as first argument, if set to a function,
* the function will be invoked with the section name as first argument and
* its return value is used as caption, after converting it to a string.
* If this property is not set, the default is the name of the underlying
* UCI configuration section.
*
* @name LuCI.form.TableSection.prototype#modaltitle
* @type string|function
* @default null
*/
/**
* Specify a maximum amount of columns to display. By default, one table
* column is rendered for each child option of the form section element.
* When this option is set to a positive number, then no more columns than
* the given amount are rendered. When the number of child options exceeds
* the specified amount, a `More…` button is rendered in the last column,
* opening a modal dialog presenting all options elements in `NamedSection`
* style when clicked.
*
* @name LuCI.form.TableSection.prototype#max_cols
* @type number
* @default null
*/
/**
* If set to `true`, alternating `cbi-rowstyle-1` and `cbi-rowstyle-2` CSS
* classes are added to the table row elements. Not all LuCI themes
* implement these row style classes. The default is `false`.
*
* @name LuCI.form.TableSection.prototype#rowcolors
* @type boolean
* @default false
*/
/**
* Enables a per-section instance row `Edit` button which triggers a certain
* action when clicked. If set to a string, the string value is used
* as `String.format()` pattern with the name of the underlying UCI section
* as first format argument. The result is then interpreted as URL which
* LuCI will navigate to when the user clicks the edit button.
*
* If set to a function, this function will be registered as click event
* handler on the rendered edit button, receiving the section instance
* name as first and the DOM click event as second argument.
*
* @name LuCI.form.TableSection.prototype#extedit
* @type string|function
* @default null
*/
/**
* If set to `true`, a sort button is added to the last column, allowing
* the user to reorder the section instances mapped by the section form
* element.
*
* @name LuCI.form.TableSection.prototype#sortable
* @type boolean
* @default false
*/
/**
* If set to `true`, the header row with the options descriptions will
* not be displayed. By default, descriptions row is automatically displayed
* when at least one option has a description.
*
* @name LuCI.form.TableSection.prototype#nodescriptions
* @type boolean
* @default false
*/
/**
* The `TableSection` implementation does not support option tabbing, so
* its implementation of `tab()` will always throw an exception when
* invoked.
*
* @override
* @throws Throws an exception when invoked.
*/
tab: function() {
throw 'Tabs are not supported by TableSection';
},
/** @private */
renderContents: function(cfgsections, nodes) {
var section_id = null,
config_name = this.uciconfig || this.map.config,
max_cols = isNaN(this.max_cols) ? this.children.length : this.max_cols,
has_more = max_cols < this.children.length,
drag_sort = this.sortable && !('ontouchstart' in window),
touch_sort = this.sortable && ('ontouchstart' in window),
sectionEl = E('div', {
'id': 'cbi-%s-%s'.format(config_name, this.sectiontype),
'class': 'cbi-section cbi-tblsection',
'data-tab': (this.map.tabbed && !this.parentoption) ? this.sectiontype : null,
'data-tab-title': (this.map.tabbed && !this.parentoption) ? this.title || this.sectiontype : null
}),
tableEl = E('table', {
'class': 'table cbi-section-table'
});
if (this.title != null && this.title != '')
sectionEl.appendChild(E('h3', {}, this.title));
if (this.description != null && this.description != '')
sectionEl.appendChild(E('div', { 'class': 'cbi-section-descr' }, this.description));
tableEl.appendChild(this.renderHeaderRows(max_cols));
for (var i = 0; i < nodes.length; i++) {
var sectionname = this.titleFn('sectiontitle', cfgsections[i]);
if (sectionname == null)
sectionname = cfgsections[i];
var trEl = E('tr', {
'id': 'cbi-%s-%s'.format(config_name, cfgsections[i]),
'class': 'tr cbi-section-table-row',
'data-sid': cfgsections[i],
'draggable': (drag_sort || touch_sort) ? true : null,
'mousedown': drag_sort ? L.bind(this.handleDragInit, this) : null,
'dragstart': drag_sort ? L.bind(this.handleDragStart, this) : null,
'dragover': drag_sort ? L.bind(this.handleDragOver, this) : null,
'dragenter': drag_sort ? L.bind(this.handleDragEnter, this) : null,
'dragleave': drag_sort ? L.bind(this.handleDragLeave, this) : null,
'dragend': drag_sort ? L.bind(this.handleDragEnd, this) : null,
'drop': drag_sort ? L.bind(this.handleDrop, this) : null,
'touchmove': touch_sort ? L.bind(this.handleTouchMove, this) : null,
'touchend': touch_sort ? L.bind(this.handleTouchEnd, this) : null,
'data-title': (sectionname && (!this.anonymous || this.sectiontitle)) ? sectionname : null,
'data-section-id': cfgsections[i]
});
if (this.extedit || this.rowcolors)
trEl.classList.add(!(tableEl.childNodes.length % 2)
? 'cbi-rowstyle-1' : 'cbi-rowstyle-2');
for (var j = 0; j < max_cols && nodes[i].firstChild; j++)
trEl.appendChild(nodes[i].firstChild);
trEl.appendChild(this.renderRowActions(cfgsections[i], has_more ? _('More…') : null));
tableEl.appendChild(trEl);
}
if (nodes.length == 0)
tableEl.appendChild(E('tr', { 'class': 'tr cbi-section-table-row placeholder' },
E('td', { 'class': 'td' }, this.renderSectionPlaceholder())));
sectionEl.appendChild(tableEl);
sectionEl.appendChild(this.renderSectionAdd('cbi-tblsection-create'));
dom.bindClassInstance(sectionEl, this);
return sectionEl;
},
/** @private */
renderHeaderRows: function(max_cols, has_action) {
var has_titles = false,
has_descriptions = false,
max_cols = isNaN(this.max_cols) ? this.children.length : this.max_cols,
has_more = max_cols < this.children.length,
anon_class = (!this.anonymous || this.sectiontitle) ? 'named' : 'anonymous',
trEls = E([]);
for (var i = 0, opt; i < max_cols && (opt = this.children[i]) != null; i++) {
if (opt.modalonly)
continue;
has_titles = has_titles || !!opt.title;
has_descriptions = has_descriptions || !!opt.description;
}
if (has_titles) {
var trEl = E('tr', {
'class': 'tr cbi-section-table-titles ' + anon_class,
'data-title': (!this.anonymous || this.sectiontitle) ? _('Name') : null,
'click': this.sortable ? ui.createHandlerFn(this, 'handleSort') : null
});
for (var i = 0, opt; i < max_cols && (opt = this.children[i]) != null; i++) {
if (opt.modalonly)
continue;
trEl.appendChild(E('th', {
'class': 'th cbi-section-table-cell',
'data-widget': opt.__name__,
'data-sortable-row': this.sortable ? '' : null
}));
if (opt.width != null)
trEl.lastElementChild.style.width =
(typeof(opt.width) == 'number') ? opt.width+'px' : opt.width;
if (opt.titleref)
trEl.lastElementChild.appendChild(E('a', {
'href': opt.titleref,
'class': 'cbi-title-ref',
'title': this.titledesc || _('Go to relevant configuration page')
}, opt.title));
else
dom.content(trEl.lastElementChild, opt.title);
}
if (this.sortable || this.extedit || this.addremove || has_more || has_action)
trEl.appendChild(E('th', {
'class': 'th cbi-section-table-cell cbi-section-actions'
}));
trEls.appendChild(trEl);
}
if (has_descriptions && !this.nodescriptions) {
var trEl = E('tr', {
'class': 'tr cbi-section-table-descr ' + anon_class
});
for (var i = 0, opt; i < max_cols && (opt = this.children[i]) != null; i++) {
if (opt.modalonly)
continue;
trEl.appendChild(E('th', {
'class': 'th cbi-section-table-cell',
'data-widget': opt.__name__
}, opt.description));
if (opt.width != null)
trEl.lastElementChild.style.width =
(typeof(opt.width) == 'number') ? opt.width+'px' : opt.width;
}
if (this.sortable || this.extedit || this.addremove || has_more || has_action)
trEl.appendChild(E('th', {
'class': 'th cbi-section-table-cell cbi-section-actions'
}));
trEls.appendChild(trEl);
}
return trEls;
},
/** @private */
renderRowActions: function(section_id, more_label) {
var config_name = this.uciconfig || this.map.config;
if (!this.sortable && !this.extedit && !this.addremove && !more_label)
return E([]);
var tdEl = E('td', {
'class': 'td cbi-section-table-cell nowrap cbi-section-actions'
}, E('div'));
if (this.sortable) {
dom.append(tdEl.lastElementChild, [
E('button', {
'title': _('Drag to reorder'),
'class': 'cbi-button drag-handle center',
'style': 'cursor:move',
'disabled': this.map.readonly || null
}, '☰')
]);
}
if (this.extedit) {
var evFn = null;
if (typeof(this.extedit) == 'function')
evFn = L.bind(this.extedit, this);
else if (typeof(this.extedit) == 'string')
evFn = L.bind(function(sid, ev) {
location.href = this.extedit.format(sid);
}, this, section_id);
dom.append(tdEl.lastElementChild,
E('button', {
'title': _('Edit'),
'class': 'cbi-button cbi-button-edit',
'click': evFn
}, [ _('Edit') ])
);
}
if (more_label) {
dom.append(tdEl.lastElementChild,
E('button', {
'title': more_label,
'class': 'cbi-button cbi-button-edit',
'click': ui.createHandlerFn(this, 'renderMoreOptionsModal', section_id)
}, [ more_label ])
);
}
if (this.addremove) {
var btn_title = this.titleFn('removebtntitle', section_id);
dom.append(tdEl.lastElementChild,
E('button', {
'title': btn_title || _('Delete'),
'class': 'cbi-button cbi-button-remove',
'click': ui.createHandlerFn(this, 'handleRemove', section_id),
'disabled': this.map.readonly || null
}, [ btn_title || _('Delete') ])
);
}
return tdEl;
},
/** @private */
handleDragInit: function(ev) {
scope.dragState = { node: ev.target };
},
/** @private */
handleDragStart: function(ev) {
if (!scope.dragState || !scope.dragState.node.classList.contains('drag-handle')) {
scope.dragState = null;
ev.preventDefault();
return false;
}
scope.dragState.node = dom.parent(scope.dragState.node, '.tr');
ev.dataTransfer.setData('text', 'drag');
ev.target.style.opacity = 0.4;
},
/** @private */
handleDragOver: function(ev) {
var n = scope.dragState.targetNode,
r = scope.dragState.rect,
t = r.top + r.height / 2;
if (ev.clientY <= t) {
n.classList.remove('drag-over-below');
n.classList.add('drag-over-above');
}
else {
n.classList.remove('drag-over-above');
n.classList.add('drag-over-below');
}
ev.dataTransfer.dropEffect = 'move';
ev.preventDefault();
return false;
},
/** @private */
handleDragEnter: function(ev) {
scope.dragState.rect = ev.currentTarget.getBoundingClientRect();
scope.dragState.targetNode = ev.currentTarget;
},
/** @private */
handleDragLeave: function(ev) {
ev.currentTarget.classList.remove('drag-over-above');
ev.currentTarget.classList.remove('drag-over-below');
},
/** @private */
handleDragEnd: function(ev) {
var n = ev.target;
n.style.opacity = '';
n.classList.add('flash');
n.parentNode.querySelectorAll('.drag-over-above, .drag-over-below')
.forEach(function(tr) {
tr.classList.remove('drag-over-above');
tr.classList.remove('drag-over-below');
});
},
/** @private */
handleDrop: function(ev) {
var s = scope.dragState;
if (s.node && s.targetNode) {
var config_name = this.uciconfig || this.map.config,
ref_node = s.targetNode,
after = false;
if (ref_node.classList.contains('drag-over-below')) {
ref_node = ref_node.nextElementSibling;
after = true;
}
var sid1 = s.node.getAttribute('data-sid'),
sid2 = s.targetNode.getAttribute('data-sid');
s.node.parentNode.insertBefore(s.node, ref_node);
this.map.data.move(config_name, sid1, sid2, after);
}
scope.dragState = null;
ev.target.style.opacity = '';
ev.stopPropagation();
ev.preventDefault();
return false;
},
/** @private */
determineBackgroundColor: function(node) {
var r = 255, g = 255, b = 255;
while (node) {
var s = window.getComputedStyle(node),
c = (s.getPropertyValue('background-color') || '').replace(/ /g, '');
if (c != '' && c != 'transparent' && c != 'rgba(0,0,0,0)') {
if (/^#([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})$/i.test(c)) {
r = parseInt(RegExp.$1, 16);
g = parseInt(RegExp.$2, 16);
b = parseInt(RegExp.$3, 16);
}
else if (/^rgba?\(([0-9]+),([0-9]+),([0-9]+)[,)]$/.test(c)) {
r = +RegExp.$1;
g = +RegExp.$2;
b = +RegExp.$3;
}
break;
}
node = node.parentNode;
}
return [ r, g, b ];
},
/** @private */
handleTouchMove: function(ev) {
if (!ev.target.classList.contains('drag-handle'))
return;
var touchLoc = ev.targetTouches[0],
rowBtn = ev.target,
rowElem = dom.parent(rowBtn, '.tr'),
htmlElem = document.querySelector('html'),
dragHandle = document.querySelector('.touchsort-element'),
viewportHeight = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
if (!dragHandle) {
var rowRect = rowElem.getBoundingClientRect(),
btnRect = rowBtn.getBoundingClientRect(),
paddingLeft = btnRect.left - rowRect.left,
paddingRight = rowRect.right - btnRect.right,
colorBg = this.determineBackgroundColor(rowElem),
colorFg = (colorBg[0] * 0.299 + colorBg[1] * 0.587 + colorBg[2] * 0.114) > 186 ? [ 0, 0, 0 ] : [ 255, 255, 255 ];
dragHandle = E('div', { 'class': 'touchsort-element' }, [
E('strong', [ rowElem.getAttribute('data-title') ]),
rowBtn.cloneNode(true)
]);
Object.assign(dragHandle.style, {
position: 'absolute',
boxShadow: '0 0 3px rgba(%d, %d, %d, 1)'.format(colorFg[0], colorFg[1], colorFg[2]),
background: 'rgba(%d, %d, %d, 0.8)'.format(colorBg[0], colorBg[1], colorBg[2]),
top: rowRect.top + 'px',
left: rowRect.left + 'px',
width: rowRect.width + 'px',
height: (rowBtn.offsetHeight + 4) + 'px'
});
Object.assign(dragHandle.firstElementChild.style, {
position: 'absolute',
lineHeight: dragHandle.style.height,
whiteSpace: 'nowrap',
overflow: 'hidden',
textOverflow: 'ellipsis',
left: (paddingRight > paddingLeft) ? '' : '5px',
right: (paddingRight > paddingLeft) ? '5px' : '',
width: (Math.max(paddingLeft, paddingRight) - 10) + 'px'
});
Object.assign(dragHandle.lastElementChild.style, {
position: 'absolute',
top: '2px',
left: paddingLeft + 'px',
width: rowBtn.offsetWidth + 'px'
});
document.body.appendChild(dragHandle);
rowElem.classList.remove('flash');
rowBtn.blur();
}
dragHandle.style.top = (touchLoc.pageY - (parseInt(dragHandle.style.height) / 2)) + 'px';
rowElem.parentNode.querySelectorAll('[draggable]').forEach(function(tr, i, trs) {
var trRect = tr.getBoundingClientRect(),
yTop = trRect.top + window.scrollY,
yBottom = trRect.bottom + window.scrollY,
yMiddle = yTop + ((yBottom - yTop) / 2);
tr.classList.remove('drag-over-above', 'drag-over-below');
if ((i == 0 || touchLoc.pageY >= yTop) && touchLoc.pageY <= yMiddle)
tr.classList.add('drag-over-above');
else if ((i == (trs.length - 1) || touchLoc.pageY <= yBottom) && touchLoc.pageY > yMiddle)
tr.classList.add('drag-over-below');
});
/* prevent standard scrolling and scroll page when drag handle is
* moved very close (~30px) to the viewport edge */
ev.preventDefault();
if (touchLoc.clientY < 30)
window.requestAnimationFrame(function() { htmlElem.scrollTop -= 30 });
else if (touchLoc.clientY > viewportHeight - 30)
window.requestAnimationFrame(function() { htmlElem.scrollTop += 30 });
},
/** @private */
handleTouchEnd: function(ev) {
var rowElem = dom.parent(ev.target, '.tr'),
htmlElem = document.querySelector('html'),
dragHandle = document.querySelector('.touchsort-element'),
targetElem = rowElem.parentNode.querySelector('.drag-over-above, .drag-over-below'),
viewportHeight = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
if (!dragHandle)
return;
if (targetElem) {
var isBelow = targetElem.classList.contains('drag-over-below');
rowElem.parentNode.insertBefore(rowElem, isBelow ? targetElem.nextElementSibling : targetElem);
this.map.data.move(
this.uciconfig || this.map.config,
rowElem.getAttribute('data-sid'),
targetElem.getAttribute('data-sid'),
isBelow);
window.requestAnimationFrame(function() {
var rowRect = rowElem.getBoundingClientRect();
if (rowRect.top < 50)
htmlElem.scrollTop = (htmlElem.scrollTop + rowRect.top - 50);
else if (rowRect.bottom > viewportHeight - 50)
htmlElem.scrollTop = (htmlElem.scrollTop + viewportHeight - 50 - rowRect.height);
rowElem.classList.add('flash');
});
targetElem.classList.remove('drag-over-above', 'drag-over-below');
}
document.body.removeChild(dragHandle);
},
/** @private */
handleModalCancel: function(modalMap, ev) {
var prevNode = this.getPreviousModalMap(),
resetTasks = Promise.resolve();
if (prevNode) {
var heading = prevNode.parentNode.querySelector('h4'),
prevMap = dom.findClassInstance(prevNode);
while (prevMap) {
resetTasks = resetTasks
.then(L.bind(prevMap.load, prevMap))
.then(L.bind(prevMap.reset, prevMap));
prevMap = prevMap.parent;
}
prevNode.classList.add('flash');
prevNode.classList.remove('hidden');
prevNode.parentNode.removeChild(prevNode.nextElementSibling);
heading.removeChild(heading.lastElementChild);
if (!this.getPreviousModalMap())
prevNode.parentNode
.querySelector('div.right > button')
.firstChild.data = _('Dismiss');
}
else {
ui.hideModal();
}
return resetTasks;
},
/** @private */
handleModalSave: function(modalMap, ev) {
var mapNode = this.getActiveModalMap(),
activeMap = dom.findClassInstance(mapNode),
saveTasks = activeMap.save(null, true);
while (activeMap.parent) {
activeMap = activeMap.parent;
saveTasks = saveTasks
.then(L.bind(activeMap.load, activeMap))
.then(L.bind(activeMap.reset, activeMap));
}
return saveTasks
.then(L.bind(this.handleModalCancel, this, modalMap, ev, true))
.catch(function() {});
},
/** @private */
handleSort: function(ev) {
if (!ev.target.matches('th[data-sortable-row]'))
return;
var th = ev.target,
descending = (th.getAttribute('data-sort-direction') == 'desc'),
config_name = this.uciconfig || this.map.config,
index = 0,
list = [];
ev.currentTarget.querySelectorAll('th').forEach(function(other_th, i) {
if (other_th !== th)
other_th.removeAttribute('data-sort-direction');
else
index = i;
});
ev.currentTarget.parentNode.querySelectorAll('tr.cbi-section-table-row').forEach(L.bind(function(tr, i) {
var sid = tr.getAttribute('data-sid'),
opt = tr.childNodes[index].getAttribute('data-name'),
val = this.cfgvalue(sid, opt);
tr.querySelectorAll('.flash').forEach(function(n) {
n.classList.remove('flash')
});
list.push([
ui.Table.prototype.deriveSortKey((val != null) ? val.trim() : ''),
tr
]);
}, this));
list.sort(function(a, b) {
return descending
? -L.naturalCompare(a[0], b[0])
: L.naturalCompare(a[0], b[0]);
});
window.requestAnimationFrame(L.bind(function() {
var ref_sid, cur_sid;
for (var i = 0; i < list.length; i++) {
list[i][1].childNodes[index].classList.add('flash');
th.parentNode.parentNode.appendChild(list[i][1]);
cur_sid = list[i][1].getAttribute('data-sid');
if (ref_sid)
this.map.data.move(config_name, cur_sid, ref_sid, true);
ref_sid = cur_sid;
}
th.setAttribute('data-sort-direction', descending ? 'asc' : 'desc');
}, this));
},
/**
* Add further options to the per-section instanced modal popup.
*
* This function may be overwritten by user code to perform additional
* setup steps before displaying the more options modal which is useful to
* e.g. query additional data or to inject further option elements.
*
* The default implementation of this function does nothing.
*
* @abstract
* @param {LuCI.form.NamedSection} modalSection
* The `NamedSection` instance about to be rendered in the modal popup.
*
* @param {string} section_id
* The ID of the underlying UCI section the modal popup belongs to.
*
* @param {Event} ev
* The DOM event emitted by clicking the `More…` button.
*
* @returns {*|Promise<*>}
* Return values of this function are ignored but if a promise is returned,
* it is run to completion before the rendering is continued, allowing
* custom logic to perform asynchronous work before the modal dialog
* is shown.
*/
addModalOptions: function(modalSection, section_id, ev) {
},
/** @private */
getActiveModalMap: function() {
return document.querySelector('body.modal-overlay-active > #modal_overlay > .modal.cbi-modal > .cbi-map:not(.hidden)');
},
/** @private */
getPreviousModalMap: function() {
var mapNode = this.getActiveModalMap(),
prevNode = mapNode ? mapNode.previousElementSibling : null;
return (prevNode && prevNode.matches('.cbi-map.hidden')) ? prevNode : null;
},
/** @private */
cloneOptions: function(src_section, dest_section) {
for (var i = 0; i < src_section.children.length; i++) {
var o1 = src_section.children[i];
if (o1.modalonly === false && src_section === this)
continue;
var o2;
if (o1.subsection) {
o2 = dest_section.option(o1.constructor, o1.option, o1.subsection.constructor, o1.subsection.sectiontype, o1.subsection.title, o1.subsection.description);
for (var k in o1.subsection) {
if (!o1.subsection.hasOwnProperty(k))
continue;
switch (k) {
case 'map':
case 'children':
case 'parentoption':
continue;
default:
o2.subsection[k] = o1.subsection[k];
}
}
this.cloneOptions(o1.subsection, o2.subsection);
}
else {
o2 = dest_section.option(o1.constructor, o1.option, o1.title, o1.description);
}
for (var k in o1) {
if (!o1.hasOwnProperty(k))
continue;
switch (k) {
case 'map':
case 'section':
case 'option':
case 'title':
case 'description':
case 'subsection':
continue;
default:
o2[k] = o1[k];
}
}
}
},
/** @private */
renderMoreOptionsModal: function(section_id, ev) {
var parent = this.map,
sref = parent.data.get(parent.config, section_id),
mapNode = this.getActiveModalMap(),
activeMap = mapNode ? dom.findClassInstance(mapNode) : null,
stackedMap = activeMap && (activeMap.parent !== parent || activeMap.section !== section_id);
return (stackedMap ? activeMap.save(null, true) : Promise.resolve()).then(L.bind(function() {
section_id = sref['.name'];
var m;
if (parent instanceof CBIJSONMap) {
m = new CBIJSONMap(null, null, null);
m.data = parent.data;
}
else {
m = new CBIMap(parent.config, null, null);
}
var s = m.section(CBINamedSection, section_id, this.sectiontype);
m.parent = parent;
m.section = section_id;
m.readonly = parent.readonly;
s.tabs = this.tabs;
s.tab_names = this.tab_names;
this.cloneOptions(this, s);
return Promise.resolve(this.addModalOptions(s, section_id, ev)).then(function() {
return m.render();
}).then(L.bind(function(nodes) {
var title = parent.title,
name = null;
if ((name = this.titleFn('modaltitle', section_id)) != null)
title = name;
else if ((name = this.titleFn('sectiontitle', section_id)) != null)
title = '%s - %s'.format(parent.title, name);
else if (!this.anonymous)
title = '%s - %s'.format(parent.title, section_id);
if (stackedMap) {
mapNode.parentNode
.querySelector('h4')
.appendChild(E('span', title ? ' » ' + title : ''));
mapNode.parentNode
.querySelector('div.right > button')
.firstChild.data = _('Back');
mapNode.classList.add('hidden');
mapNode.parentNode.insertBefore(nodes, mapNode.nextElementSibling);
nodes.classList.add('flash');
}
else {
ui.showModal(title, [
nodes,
E('div', { 'class': 'right' }, [
E('button', {
'class': 'cbi-button',
'click': ui.createHandlerFn(this, 'handleModalCancel', m)
}, [ _('Dismiss') ]), ' ',
E('button', {
'class': 'cbi-button cbi-button-positive important',
'click': ui.createHandlerFn(this, 'handleModalSave', m),
'disabled': m.readonly || null
}, [ _('Save') ])
])
], 'cbi-modal');
}
}, this));
}, this)).catch(L.error);
}
});
/**
* @class GridSection
* @memberof LuCI.form
* @augments LuCI.form.TableSection
* @hideconstructor
* @classdesc
*
* The `GridSection` class maps all or - if `filter()` is overwritten - a
* subset of the underlying UCI configuration sections of a given type.
*
* A grid section functions similar to a {@link LuCI.form.TableSection} but
* supports tabbing in the modal overlay. Option elements added with
* [option()]{@link LuCI.form.GridSection#option} are shown in the table while
* elements added with [taboption()]{@link LuCI.form.GridSection#taboption}
* are displayed in the modal popup.
*
* Another important difference is that the table cells show a readonly text
* preview of the corresponding option elements by default, unless the child
* option element is explicitly made writable by setting the `editable`
* property to `true`.
*
* Additionally, the grid section honours a `modalonly` property of child
* option elements. Refer to the [AbstractValue]{@link LuCI.form.AbstractValue}
* documentation for details.
*
* Layout wise, a grid section looks mostly identical to table sections.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [section()]{@link LuCI.form.Map#section}.
*
* @param {string} section_type
* The type of the UCI section to map.
*
* @param {string} [title]
* The title caption of the form section element.
*
* @param {string} [description]
* The description text of the form section element.
*/
var CBIGridSection = CBITableSection.extend(/** @lends LuCI.form.GridSection.prototype */ {
/**
* Add an option tab to the section.
*
* The modal option elements of a grid section may be divided into multiple
* tabs to provide a better overview to the user.
*
* Before options can be moved into a tab pane, the corresponding tab
* has to be defined first, which is done by calling this function.
*
* Note that tabs are only effective in modal popups, options added with
* `option()` will not be assigned to a specific tab and are rendered in
* the table view only.
*
* @param {string} name
* The name of the tab to register. It may be freely chosen and just serves
* as an identifier to differentiate tabs.
*
* @param {string} title
* The human readable caption of the tab.
*
* @param {string} [description]
* An additional description text for the corresponding tab pane. It is
* displayed as text paragraph below the tab but before the tab pane
* contents. If omitted, no description will be rendered.
*
* @throws {Error}
* Throws an exception if a tab with the same `name` already exists.
*/
tab: function(name, title, description) {
CBIAbstractSection.prototype.tab.call(this, name, title, description);
},
/** @private */
handleAdd: function(ev, name) {
var config_name = this.uciconfig || this.map.config,
section_id = this.map.data.add(config_name, this.sectiontype, name),
mapNode = this.getPreviousModalMap(),
prevMap = mapNode ? dom.findClassInstance(mapNode) : this.map;
prevMap.addedSection = section_id;
return this.renderMoreOptionsModal(section_id);
},
/** @private */
handleModalSave: function(/* ... */) {
var mapNode = this.getPreviousModalMap(),
prevMap = mapNode ? dom.findClassInstance(mapNode) : this.map;
return this.super('handleModalSave', arguments);
},
/** @private */
handleModalCancel: function(modalMap, ev, isSaving) {
var config_name = this.uciconfig || this.map.config,
mapNode = this.getPreviousModalMap(),
prevMap = mapNode ? dom.findClassInstance(mapNode) : this.map;
if (prevMap.addedSection != null && !isSaving)
this.map.data.remove(config_name, prevMap.addedSection);
delete prevMap.addedSection;
return this.super('handleModalCancel', arguments);
},
/** @private */
renderUCISection: function(section_id) {
return this.renderOptions(null, section_id);
},
/** @private */
renderChildren: function(tab_name, section_id, in_table) {
var tasks = [], index = 0;
for (var i = 0, opt; (opt = this.children[i]) != null; i++) {
if (opt.disable || opt.modalonly)
continue;
if (opt.editable)
tasks.push(opt.render(index++, section_id, in_table));
else
tasks.push(this.renderTextValue(section_id, opt));
}
return Promise.all(tasks);
},
/** @private */
renderTextValue: function(section_id, opt) {
var title = this.stripTags(opt.title).trim(),
descr = this.stripTags(opt.description).trim(),
value = opt.textvalue(section_id);
return E('td', {
'class': 'td cbi-value-field',
'data-title': (title != '') ? title : null,
'data-description': (descr != '') ? descr : null,
'data-name': opt.option,
'data-widget': 'CBI.DummyValue'
}, (value != null) ? value : E('em', _('none')));
},
/** @private */
renderHeaderRows: function(section_id) {
return this.super('renderHeaderRows', [ NaN, true ]);
},
/** @private */
renderRowActions: function(section_id) {
return this.super('renderRowActions', [ section_id, _('Edit') ]);
},
/** @override */
parse: function() {
var section_ids = this.cfgsections(),
tasks = [];
if (Array.isArray(this.children)) {
for (var i = 0; i < section_ids.length; i++) {
for (var j = 0; j < this.children.length; j++) {
if (!this.children[j].editable || this.children[j].modalonly)
continue;
tasks.push(this.children[j].parse(section_ids[i]));
}
}
}
return Promise.all(tasks);
}
});
/**
* @class NamedSection
* @memberof LuCI.form
* @augments LuCI.form.AbstractSection
* @hideconstructor
* @classdesc
*
* The `NamedSection` class maps exactly one UCI section instance which is
* specified when constructing the class instance.
*
* Layout and functionality wise, a named section is essentially a
* `TypedSection` which allows exactly one section node.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [section()]{@link LuCI.form.Map#section}.
*
* @param {string} section_id
* The name (ID) of the UCI section to map.
*
* @param {string} section_type
* The type of the UCI section to map.
*
* @param {string} [title]
* The title caption of the form section element.
*
* @param {string} [description]
* The description text of the form section element.
*/
var CBINamedSection = CBIAbstractSection.extend(/** @lends LuCI.form.NamedSection.prototype */ {
__name__: 'CBI.NamedSection',
__init__: function(map, section_id /*, ... */) {
this.super('__init__', this.varargs(arguments, 2, map));
this.section = section_id;
},
/**
* If set to `true`, the user may remove or recreate the sole mapped
* configuration instance from the form section widget, otherwise only a
* preexisting section may be edited. The default is `false`.
*
* @name LuCI.form.NamedSection.prototype#addremove
* @type boolean
* @default false
*/
/**
* Override the UCI configuration name to read the section IDs from. By
* default, the configuration name is inherited from the parent `Map`.
* By setting this property, a deviating configuration may be specified.
* The default is `null`, means inheriting from the parent form.
*
* @name LuCI.form.NamedSection.prototype#uciconfig
* @type string
* @default null
*/
/**
* The `NamedSection` class overwrites the generic `cfgsections()`
* implementation to return a one-element array containing the mapped
* section ID as sole element. User code should not normally change this.
*
* @returns {string[]}
* Returns a one-element array containing the mapped section ID.
*/
cfgsections: function() {
return [ this.section ];
},
/** @private */
handleAdd: function(ev) {
var section_id = this.section,
config_name = this.uciconfig || this.map.config;
this.map.data.add(config_name, this.sectiontype, section_id);
return this.map.save(null, true);
},
/** @private */
handleRemove: function(ev) {
var section_id = this.section,
config_name = this.uciconfig || this.map.config;
this.map.data.remove(config_name, section_id);
return this.map.save(null, true);
},
/** @private */
renderContents: function(data) {
var ucidata = data[0], nodes = data[1],
section_id = this.section,
config_name = this.uciconfig || this.map.config,
sectionEl = E('div', {
'id': ucidata ? null : 'cbi-%s-%s'.format(config_name, section_id),
'class': 'cbi-section',
'data-tab': (this.map.tabbed && !this.parentoption) ? this.sectiontype : null,
'data-tab-title': (this.map.tabbed && !this.parentoption) ? this.title || this.sectiontype : null
});
if (typeof(this.title) === 'string' && this.title !== '')
sectionEl.appendChild(E('h3', {}, this.title));
if (typeof(this.description) === 'string' && this.description !== '')
sectionEl.appendChild(E('div', { 'class': 'cbi-section-descr' }, this.description));
if (ucidata) {
if (this.addremove) {
sectionEl.appendChild(
E('div', { 'class': 'cbi-section-remove right' },
E('button', {
'class': 'cbi-button',
'click': ui.createHandlerFn(this, 'handleRemove'),
'disabled': this.map.readonly || null
}, [ _('Delete') ])));
}
sectionEl.appendChild(E('div', {
'id': 'cbi-%s-%s'.format(config_name, section_id),
'class': this.tabs
? 'cbi-section-node cbi-section-node-tabbed' : 'cbi-section-node',
'data-section-id': section_id
}, nodes));
}
else if (this.addremove) {
sectionEl.appendChild(
E('button', {
'class': 'cbi-button cbi-button-add',
'click': ui.createHandlerFn(this, 'handleAdd'),
'disabled': this.map.readonly || null
}, [ _('Add') ]));
}
dom.bindClassInstance(sectionEl, this);
return sectionEl;
},
/** @override */
render: function() {
var config_name = this.uciconfig || this.map.config,
section_id = this.section;
return Promise.all([
this.map.data.get(config_name, section_id),
this.renderUCISection(section_id)
]).then(this.renderContents.bind(this));
}
});
/**
* @class Value
* @memberof LuCI.form
* @augments LuCI.form.AbstractValue
* @hideconstructor
* @classdesc
*
* The `Value` class represents a simple one-line form input using the
* {@link LuCI.ui.Textfield} or - in case choices are added - the
* {@link LuCI.ui.Combobox} class as underlying widget.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIValue = CBIAbstractValue.extend(/** @lends LuCI.form.Value.prototype */ {
__name__: 'CBI.Value',
/**
* If set to `true`, the field is rendered as password input, otherwise
* as plain text input.
*
* @name LuCI.form.Value.prototype#password
* @type boolean
* @default false
*/
/**
* Set a placeholder string to use when the input field is empty.
*
* @name LuCI.form.Value.prototype#placeholder
* @type string
* @default null
*/
/**
* Add a predefined choice to the form option. By adding one or more
* choices, the plain text input field is turned into a combobox widget
* which prompts the user to select a predefined choice, or to enter a
* custom value.
*
* @param {string} key
* The choice value to add.
*
* @param {Node|string} val
* The caption for the choice value. May be a DOM node, a document fragment
* or a plain text string. If omitted, the `key` value is used as caption.
*/
value: function(key, val) {
this.keylist = this.keylist || [];
this.keylist.push(String(key));
this.vallist = this.vallist || [];
this.vallist.push(dom.elem(val) ? val : String(val != null ? val : key));
},
/** @override */
render: function(option_index, section_id, in_table) {
return Promise.resolve(this.cfgvalue(section_id))
.then(this.renderWidget.bind(this, section_id, option_index))
.then(this.renderFrame.bind(this, section_id, in_table, option_index));
},
/** @private */
handleValueChange: function(section_id, state, ev) {
if (typeof(this.onchange) != 'function')
return;
var value = this.formvalue(section_id);
if (isEqual(value, state.previousValue))
return;
state.previousValue = value;
this.onchange.call(this, ev, section_id, value);
},
/** @private */
renderFrame: function(section_id, in_table, option_index, nodes) {
var config_name = this.uciconfig || this.section.uciconfig || this.map.config,
depend_list = this.transformDepList(section_id),
optionEl;
if (in_table) {
var title = this.stripTags(this.title).trim();
optionEl = E('td', {
'class': 'td cbi-value-field',
'data-title': (title != '') ? title : null,
'data-description': this.stripTags(this.description).trim(),
'data-name': this.option,
'data-widget': this.typename || (this.template ? this.template.replace(/^.+\//, '') : null) || this.__name__
}, E('div', {
'id': 'cbi-%s-%s-%s'.format(config_name, section_id, this.option),
'data-index': option_index,
'data-depends': depend_list,
'data-field': this.cbid(section_id)
}));
}
else {
optionEl = E('div', {
'class': 'cbi-value',
'id': 'cbi-%s-%s-%s'.format(config_name, section_id, this.option),
'data-index': option_index,
'data-depends': depend_list,
'data-field': this.cbid(section_id),
'data-name': this.option,
'data-widget': this.typename || (this.template ? this.template.replace(/^.+\//, '') : null) || this.__name__
});
if (this.last_child)
optionEl.classList.add('cbi-value-last');
if (typeof(this.title) === 'string' && this.title !== '') {
optionEl.appendChild(E('label', {
'class': 'cbi-value-title',
'for': 'widget.cbid.%s.%s.%s'.format(config_name, section_id, this.option),
'click': function(ev) {
var node = ev.currentTarget,
elem = node.nextElementSibling.querySelector('#' + node.getAttribute('for')) || node.nextElementSibling.querySelector('[data-widget-id="' + node.getAttribute('for') + '"]');
if (elem) {
elem.click();
elem.focus();
}
}
},
this.titleref ? E('a', {
'class': 'cbi-title-ref',
'href': this.titleref,
'title': this.titledesc || _('Go to relevant configuration page')
}, this.title) : this.title));
optionEl.appendChild(E('div', { 'class': 'cbi-value-field' }));
}
}
if (nodes)
(optionEl.lastChild || optionEl).appendChild(nodes);
if (!in_table && typeof(this.description) === 'string' && this.description !== '')
dom.append(optionEl.lastChild || optionEl,
E('div', { 'class': 'cbi-value-description' }, this.description.trim()));
if (depend_list && depend_list.length)
optionEl.classList.add('hidden');
optionEl.addEventListener('widget-change',
L.bind(this.map.checkDepends, this.map));
optionEl.addEventListener('widget-change',
L.bind(this.handleValueChange, this, section_id, {}));
dom.bindClassInstance(optionEl, this);
return optionEl;
},
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var value = (cfgvalue != null) ? cfgvalue : this.default,
choices = this.transformChoices(),
widget;
if (choices) {
var placeholder = (this.optional || this.rmempty)
? E('em', _('unspecified')) : _('-- Please choose --');
widget = new ui.Combobox(Array.isArray(value) ? value.join(' ') : value, choices, {
id: this.cbid(section_id),
sort: this.keylist,
optional: this.optional || this.rmempty,
datatype: this.datatype,
select_placeholder: this.placeholder || placeholder,
validate: L.bind(this.validate, this, section_id),
disabled: (this.readonly != null) ? this.readonly : this.map.readonly
});
}
else {
widget = new ui.Textfield(Array.isArray(value) ? value.join(' ') : value, {
id: this.cbid(section_id),
password: this.password,
optional: this.optional || this.rmempty,
datatype: this.datatype,
placeholder: this.placeholder,
validate: L.bind(this.validate, this, section_id),
disabled: (this.readonly != null) ? this.readonly : this.map.readonly
});
}
return widget.render();
}
});
/**
* @class DynamicList
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `DynamicList` class represents a multi value widget allowing the user
* to enter multiple unique values, optionally selected from a set of
* predefined choices. It builds upon the {@link LuCI.ui.DynamicList} widget.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIDynamicList = CBIValue.extend(/** @lends LuCI.form.DynamicList.prototype */ {
__name__: 'CBI.DynamicList',
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var value = (cfgvalue != null) ? cfgvalue : this.default,
choices = this.transformChoices(),
items = L.toArray(value);
var widget = new ui.DynamicList(items, choices, {
id: this.cbid(section_id),
sort: this.keylist,
optional: this.optional || this.rmempty,
datatype: this.datatype,
placeholder: this.placeholder,
validate: L.bind(this.validate, this, section_id),
disabled: (this.readonly != null) ? this.readonly : this.map.readonly
});
return widget.render();
},
});
/**
* @class ListValue
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `ListValue` class implements a simple static HTML select element
* allowing the user to choose a single value from a set of predefined choices.
* It builds upon the {@link LuCI.ui.Select} widget.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIListValue = CBIValue.extend(/** @lends LuCI.form.ListValue.prototype */ {
__name__: 'CBI.ListValue',
__init__: function() {
this.super('__init__', arguments);
this.widget = 'select';
this.orientation = 'horizontal';
this.deplist = [];
},
/**
* Set the size attribute of the underlying HTML select element.
*
* @name LuCI.form.ListValue.prototype#size
* @type number
* @default null
*/
/**
* Set the type of the underlying form controls.
*
* May be one of `select` or `radio`. If set to `select`, an HTML
* select element is rendered, otherwise a collection of `radio`
* elements is used.
*
* @name LuCI.form.ListValue.prototype#widget
* @type string
* @default select
*/
/**
* Set the orientation of the underlying radio or checkbox elements.
*
* May be one of `horizontal` or `vertical`. Only applies to non-select
* widget types.
*
* @name LuCI.form.ListValue.prototype#orientation
* @type string
* @default horizontal
*/
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var choices = this.transformChoices();
var widget = new ui.Select((cfgvalue != null) ? cfgvalue : this.default, choices, {
id: this.cbid(section_id),
size: this.size,
sort: this.keylist,
widget: this.widget,
optional: this.optional,
orientation: this.orientation,
placeholder: this.placeholder,
validate: L.bind(this.validate, this, section_id),
disabled: (this.readonly != null) ? this.readonly : this.map.readonly
});
return widget.render();
},
});
/**
* @class FlagValue
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `FlagValue` element builds upon the {@link LuCI.ui.Checkbox} widget to
* implement a simple checkbox element.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIFlagValue = CBIValue.extend(/** @lends LuCI.form.FlagValue.prototype */ {
__name__: 'CBI.FlagValue',
__init__: function() {
this.super('__init__', arguments);
this.enabled = '1';
this.disabled = '0';
this.default = this.disabled;
},
/**
* Sets the input value to use for the checkbox checked state.
*
* @name LuCI.form.FlagValue.prototype#enabled
* @type string
* @default 1
*/
/**
* Sets the input value to use for the checkbox unchecked state.
*
* @name LuCI.form.FlagValue.prototype#disabled
* @type string
* @default 0
*/
/**
* Set a tooltip for the flag option.
*
* If set to a string, it will be used as-is as a tooltip.
*
* If set to a function, the function will be invoked and the return
* value will be shown as a tooltip. If the return value of the function
* is `null` no tooltip will be set.
*
* @name LuCI.form.FlagValue.prototype#tooltip
* @type string|function
* @default null
*/
/**
* Set a tooltip icon for the flag option.
*
* If set, this icon will be shown for the default one.
* This could also be a png icon from the resources directory.
*
* @name LuCI.form.FlagValue.prototype#tooltipicon
* @type string
* @default 'ℹ️';
*/
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var tooltip = null;
if (typeof(this.tooltip) == 'function')
tooltip = this.tooltip.apply(this, [section_id]);
else if (typeof(this.tooltip) == 'string')
tooltip = (arguments.length > 1) ? ''.format.apply(this.tooltip, this.varargs(arguments, 1)) : this.tooltip;
var widget = new ui.Checkbox((cfgvalue != null) ? cfgvalue : this.default, {
id: this.cbid(section_id),
value_enabled: this.enabled,
value_disabled: this.disabled,
validate: L.bind(this.validate, this, section_id),
tooltip: tooltip,
tooltipicon: this.tooltipicon,
disabled: (this.readonly != null) ? this.readonly : this.map.readonly
});
return widget.render();
},
/**
* Query the checked state of the underlying checkbox widget and return
* either the `enabled` or the `disabled` property value, depending on
* the checked state.
*
* @override
*/
formvalue: function(section_id) {
var elem = this.getUIElement(section_id),
checked = elem ? elem.isChecked() : false;
return checked ? this.enabled : this.disabled;
},
/**
* Query the checked state of the underlying checkbox widget and return
* either a localized `Yes` or `No` string, depending on the checked state.
*
* @override
*/
textvalue: function(section_id) {
var cval = this.cfgvalue(section_id);
if (cval == null)
cval = this.default;
return (cval == this.enabled) ? _('Yes') : _('No');
},
/** @override */
parse: function(section_id) {
if (this.isActive(section_id)) {
var fval = this.formvalue(section_id);
if (!this.isValid(section_id)) {
var title = this.stripTags(this.title).trim();
var error = this.getValidationError(section_id);
return Promise.reject(new TypeError(
_('Option "%s" contains an invalid input value.').format(title || this.option) + ' ' + error));
}
if (fval == this.default && (this.optional || this.rmempty))
return Promise.resolve(this.remove(section_id));
else
return Promise.resolve(this.write(section_id, fval));
}
else if (!this.retain) {
return Promise.resolve(this.remove(section_id));
}
},
});
/**
* @class MultiValue
* @memberof LuCI.form
* @augments LuCI.form.DynamicList
* @hideconstructor
* @classdesc
*
* The `MultiValue` class is a modified variant of the `DynamicList` element
* which leverages the {@link LuCI.ui.Dropdown} widget to implement a multi
* select dropdown element.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIMultiValue = CBIDynamicList.extend(/** @lends LuCI.form.MultiValue.prototype */ {
__name__: 'CBI.MultiValue',
__init__: function() {
this.super('__init__', arguments);
this.placeholder = _('-- Please choose --');
},
/**
* Allows to specify the [display_items]{@link LuCI.ui.Dropdown.InitOptions}
* property of the underlying dropdown widget. If omitted, the value of
* the `size` property is used or `3` when `size` is unspecified as well.
*
* @name LuCI.form.MultiValue.prototype#display_size
* @type number
* @default null
*/
/**
* Allows to specify the [dropdown_items]{@link LuCI.ui.Dropdown.InitOptions}
* property of the underlying dropdown widget. If omitted, the value of
* the `size` property is used or `-1` when `size` is unspecified as well.
*
* @name LuCI.form.MultiValue.prototype#dropdown_size
* @type number
* @default null
*/
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var value = (cfgvalue != null) ? cfgvalue : this.default,
choices = this.transformChoices();
var widget = new ui.Dropdown(L.toArray(value), choices, {
id: this.cbid(section_id),
sort: this.keylist,
multiple: true,
optional: this.optional || this.rmempty,
select_placeholder: this.placeholder,
display_items: this.display_size || this.size || 3,
dropdown_items: this.dropdown_size || this.size || -1,
validate: L.bind(this.validate, this, section_id),
disabled: (this.readonly != null) ? this.readonly : this.map.readonly
});
return widget.render();
},
});
/**
* @class TextValue
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `TextValue` class implements a multi-line textarea input using
* {@link LuCI.ui.Textarea}.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBITextValue = CBIValue.extend(/** @lends LuCI.form.TextValue.prototype */ {
__name__: 'CBI.TextValue',
/** @ignore */
value: null,
/**
* Enforces the use of a monospace font for the textarea contents when set
* to `true`.
*
* @name LuCI.form.TextValue.prototype#monospace
* @type boolean
* @default false
*/
/**
* Allows to specify the [cols]{@link LuCI.ui.Textarea.InitOptions}
* property of the underlying textarea widget.
*
* @name LuCI.form.TextValue.prototype#cols
* @type number
* @default null
*/
/**
* Allows to specify the [rows]{@link LuCI.ui.Textarea.InitOptions}
* property of the underlying textarea widget.
*
* @name LuCI.form.TextValue.prototype#rows
* @type number
* @default null
*/
/**
* Allows to specify the [wrap]{@link LuCI.ui.Textarea.InitOptions}
* property of the underlying textarea widget.
*
* @name LuCI.form.TextValue.prototype#wrap
* @type number
* @default null
*/
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var value = (cfgvalue != null) ? cfgvalue : this.default;
var widget = new ui.Textarea(value, {
id: this.cbid(section_id),
optional: this.optional || this.rmempty,
placeholder: this.placeholder,
monospace: this.monospace,
cols: this.cols,
rows: this.rows,
wrap: this.wrap,
validate: L.bind(this.validate, this, section_id),
disabled: (this.readonly != null) ? this.readonly : this.map.readonly
});
return widget.render();
}
});
/**
* @class DummyValue
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `DummyValue` element wraps an {@link LuCI.ui.Hiddenfield} widget and
* renders the underlying UCI option or default value as readonly text.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIDummyValue = CBIValue.extend(/** @lends LuCI.form.DummyValue.prototype */ {
__name__: 'CBI.DummyValue',
/**
* Set a URL which is opened when clicking on the dummy value text.
*
* By setting this property, the dummy value text is wrapped in an `<a>`
* element with the property value used as `href` attribute.
*
* @name LuCI.form.DummyValue.prototype#href
* @type string
* @default null
*/
/**
* Treat the UCI option value (or the `default` property value) as HTML.
*
* By default, the value text is HTML escaped before being rendered as
* text. In some cases it may be needed to actually interpret and render
* HTML contents as-is. When set to `true`, HTML escaping is disabled.
*
* @name LuCI.form.DummyValue.prototype#rawhtml
* @type boolean
* @default null
*/
/**
* Render the UCI option value as hidden using the HTML display: none style property.
*
* By default, the value is displayed
*
* @name LuCI.form.DummyValue.prototype#hidden
* @type boolean
* @default null
*/
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var value = (cfgvalue != null) ? cfgvalue : this.default,
hiddenEl = new ui.Hiddenfield(value, { id: this.cbid(section_id) }),
outputEl = E('div', { 'style': this.hidden ? 'display:none' : null });
if (this.href && !((this.readonly != null) ? this.readonly : this.map.readonly))
outputEl.appendChild(E('a', { 'href': this.href }));
dom.append(outputEl.lastChild || outputEl,
this.rawhtml ? value : [ value ]);
return E([
outputEl,
hiddenEl.render()
]);
},
/** @override */
remove: function() {},
/** @override */
write: function() {}
});
/**
* @class ButtonValue
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `DummyValue` element wraps an {@link LuCI.ui.Hiddenfield} widget and
* renders the underlying UCI option or default value as readonly text.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIButtonValue = CBIValue.extend(/** @lends LuCI.form.ButtonValue.prototype */ {
__name__: 'CBI.ButtonValue',
/**
* Override the rendered button caption.
*
* By default, the option title - which is passed as fourth argument to the
* constructor - is used as caption for the button element. When setting
* this property to a string, it is used as `String.format()` pattern with
* the underlying UCI section name passed as first format argument. When
* set to a function, it is invoked passing the section ID as sole argument
* and the resulting return value is converted to a string before being
* used as button caption.
*
* The default is `null`, means the option title is used as caption.
*
* @name LuCI.form.ButtonValue.prototype#inputtitle
* @type string|function
* @default null
*/
/**
* Override the button style class.
*
* By setting this property, a specific `cbi-button-*` CSS class can be
* selected to influence the style of the resulting button.
*
* Suitable values which are implemented by most themes are `positive`,
* `negative` and `primary`.
*
* The default is `null`, means a neutral button styling is used.
*
* @name LuCI.form.ButtonValue.prototype#inputstyle
* @type string
* @default null
*/
/**
* Override the button click action.
*
* By default, the underlying UCI option (or default property) value is
* copied into a hidden field tied to the button element and the save
* action is triggered on the parent form element.
*
* When this property is set to a function, it is invoked instead of
* performing the default actions. The handler function will receive the
* DOM click element as first and the underlying configuration section ID
* as second argument.
*
* @name LuCI.form.ButtonValue.prototype#onclick
* @type function
* @default null
*/
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var value = (cfgvalue != null) ? cfgvalue : this.default,
hiddenEl = new ui.Hiddenfield(value, { id: this.cbid(section_id) }),
outputEl = E('div'),
btn_title = this.titleFn('inputtitle', section_id) || this.titleFn('title', section_id);
if (value !== false)
dom.content(outputEl, [
E('button', {
'class': 'cbi-button cbi-button-%s'.format(this.inputstyle || 'button'),
'click': ui.createHandlerFn(this, function(section_id, ev) {
if (this.onclick)
return this.onclick(ev, section_id);
ev.currentTarget.parentNode.nextElementSibling.value = value;
return this.map.save();
}, section_id),
'disabled': ((this.readonly != null) ? this.readonly : this.map.readonly) || null
}, [ btn_title ])
]);
else
dom.content(outputEl, ' - ');
return E([
outputEl,
hiddenEl.render()
]);
}
});
/**
* @class HiddenValue
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `HiddenValue` element wraps an {@link LuCI.ui.Hiddenfield} widget.
*
* Hidden value widgets used to be necessary in legacy code which actually
* submitted the underlying HTML form the server. With client side handling of
* forms, there are more efficient ways to store hidden state data.
*
* Since this widget has no visible content, the title and description values
* of this form element should be set to `null` as well to avoid a broken or
* distorted form layout when rendering the option element.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIHiddenValue = CBIValue.extend(/** @lends LuCI.form.HiddenValue.prototype */ {
__name__: 'CBI.HiddenValue',
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var widget = new ui.Hiddenfield((cfgvalue != null) ? cfgvalue : this.default, {
id: this.cbid(section_id)
});
return widget.render();
}
});
/**
* @class FileUpload
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `FileUpload` element wraps an {@link LuCI.ui.FileUpload} widget and
* offers the ability to browse, upload and select remote files.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The name of the UCI option to map.
*
* @param {string} [title]
* The title caption of the option element.
*
* @param {string} [description]
* The description text of the option element.
*/
var CBIFileUpload = CBIValue.extend(/** @lends LuCI.form.FileUpload.prototype */ {
__name__: 'CBI.FileSelect',
__init__: function(/* ... */) {
this.super('__init__', arguments);
this.browser = false;
this.show_hidden = false;
this.enable_upload = true;
this.enable_remove = true;
this.enable_download = false;
this.root_directory = '/etc/luci-uploads';
},
/**
* Open in a file browser mode instead of selecting for a file
*
* @name LuCI.form.FileUpload.prototype#browser
* @type boolean
* @default false
*/
/**
* Toggle display of hidden files.
*
* Display hidden files when rendering the remote directory listing.
* Note that this is merely a cosmetic feature, hidden files are always
* included in received remote file listings.
*
* The default is `false`, means hidden files are not displayed.
*
* @name LuCI.form.FileUpload.prototype#show_hidden
* @type boolean
* @default false
*/
/**
* Toggle file upload functionality.
*
* When set to `true`, the underlying widget provides a button which lets
* the user select and upload local files to the remote system.
* Note that this is merely a cosmetic feature, remote upload access is
* controlled by the session ACL rules.
*
* The default is `true`, means file upload functionality is displayed.
*
* @name LuCI.form.FileUpload.prototype#enable_upload
* @type boolean
* @default true
*/
/**
* Toggle remote file delete functionality.
*
* When set to `true`, the underlying widget provides a buttons which let
* the user delete files from remote directories. Note that this is merely
* a cosmetic feature, remote delete permissions are controlled by the
* session ACL rules.
*
* The default is `true`, means file removal buttons are displayed.
*
* @name LuCI.form.FileUpload.prototype#enable_remove
* @type boolean
* @default true
*/
/**
* Toggle download file functionality.
*
* @name LuCI.form.FileUpload.prototype#enable_download
* @type boolean
* @default false
*/
/**
* Specify the root directory for file browsing.
*
* This property defines the topmost directory the file browser widget may
* navigate to, the UI will not allow browsing directories outside this
* prefix. Note that this is merely a cosmetic feature, remote file access
* and directory listing permissions are controlled by the session ACL
* rules.
*
* The default is `/etc/luci-uploads`.
*
* @name LuCI.form.FileUpload.prototype#root_directory
* @type string
* @default /etc/luci-uploads
*/
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
var browserEl = new ui.FileUpload((cfgvalue != null) ? cfgvalue : this.default, {
id: this.cbid(section_id),
name: this.cbid(section_id),
browser: this.browser,
show_hidden: this.show_hidden,
enable_upload: this.enable_upload,
enable_remove: this.enable_remove,
enable_download: this.enable_download,
root_directory: this.root_directory,
disabled: (this.readonly != null) ? this.readonly : this.map.readonly
});
return browserEl.render();
}
});
/**
* @class SectionValue
* @memberof LuCI.form
* @augments LuCI.form.Value
* @hideconstructor
* @classdesc
*
* The `SectionValue` widget embeds a form section element within an option
* element container, allowing to nest form sections into other sections.
*
* @param {LuCI.form.Map|LuCI.form.JSONMap} form
* The configuration form this section is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {LuCI.form.AbstractSection} section
* The configuration section this option is added to. It is automatically passed
* by [option()]{@link LuCI.form.AbstractSection#option} or
* [taboption()]{@link LuCI.form.AbstractSection#taboption} when adding the
* option to the section.
*
* @param {string} option
* The internal name of the option element holding the section. Since a section
* container element does not read or write any configuration itself, the name
* is only used internally and does not need to relate to any underlying UCI
* option name.
*
* @param {LuCI.form.AbstractSection} subsection_class
* The class to use for instantiating the nested section element. Note that
* the class value itself is expected here, not a class instance obtained by
* calling `new`. The given class argument must be a subclass of the
* `AbstractSection` class.
*
* @param {...*} [class_args]
* All further arguments are passed as-is to the subclass constructor. Refer
* to the corresponding class constructor documentations for details.
*/
var CBISectionValue = CBIValue.extend(/** @lends LuCI.form.SectionValue.prototype */ {
__name__: 'CBI.ContainerValue',
__init__: function(map, section, option, cbiClass /*, ... */) {
this.super('__init__', [map, section, option]);
if (!CBIAbstractSection.isSubclass(cbiClass))
throw 'Sub section must be a descendent of CBIAbstractSection';
this.subsection = cbiClass.instantiate(this.varargs(arguments, 4, this.map));
this.subsection.parentoption = this;
},
/**
* Access the embedded section instance.
*
* This property holds a reference to the instantiated nested section.
*
* @name LuCI.form.SectionValue.prototype#subsection
* @type LuCI.form.AbstractSection
* @readonly
*/
/** @override */
load: function(section_id) {
return this.subsection.load(section_id);
},
/** @override */
parse: function(section_id) {
return this.subsection.parse(section_id);
},
/** @private */
renderWidget: function(section_id, option_index, cfgvalue) {
return this.subsection.render(section_id);
},
/** @private */
checkDepends: function(section_id) {
this.subsection.checkDepends(section_id);
return CBIValue.prototype.checkDepends.apply(this, [ section_id ]);
},
/**
* Since the section container is not rendering an own widget,
* its `value()` implementation is a no-op.
*
* @override
*/
value: function() {},
/**
* Since the section container is not tied to any UCI configuration,
* its `write()` implementation is a no-op.
*
* @override
*/
write: function() {},
/**
* Since the section container is not tied to any UCI configuration,
* its `remove()` implementation is a no-op.
*
* @override
*/
remove: function() {},
/**
* Since the section container is not tied to any UCI configuration,
* its `cfgvalue()` implementation will always return `null`.
*
* @override
* @returns {null}
*/
cfgvalue: function() { return null },
/**
* Since the section container is not tied to any UCI configuration,
* its `formvalue()` implementation will always return `null`.
*
* @override
* @returns {null}
*/
formvalue: function() { return null }
});
/**
* @class form
* @memberof LuCI
* @hideconstructor
* @classdesc
*
* The LuCI form class provides high level abstractions for creating
* UCI- or JSON backed configurations forms.
*
* To import the class in views, use `'require form'`, to import it in
* external JavaScript, use `L.require("form").then(...)`.
*
* A typical form is created by first constructing a
* {@link LuCI.form.Map} or {@link LuCI.form.JSONMap} instance using `new` and
* by subsequently adding sections and options to it. Finally
* [render()]{@link LuCI.form.Map#render} is invoked on the instance to
* assemble the HTML markup and insert it into the DOM.
*
* Example:
*
* <pre>
* 'use strict';
* 'require form';
*
* var m, s, o;
*
* m = new form.Map('example', 'Example form',
* 'This is an example form mapping the contents of /etc/config/example');
*
* s = m.section(form.NamedSection, 'first_section', 'example', 'The first section',
* 'This sections maps "config example first_section" of /etc/config/example');
*
* o = s.option(form.Flag, 'some_bool', 'A checkbox option');
*
* o = s.option(form.ListValue, 'some_choice', 'A select element');
* o.value('choice1', 'The first choice');
* o.value('choice2', 'The second choice');
*
* m.render().then(function(node) {
* document.body.appendChild(node);
* });
* </pre>
*/
return baseclass.extend(/** @lends LuCI.form.prototype */ {
Map: CBIMap,
JSONMap: CBIJSONMap,
AbstractSection: CBIAbstractSection,
AbstractValue: CBIAbstractValue,
TypedSection: CBITypedSection,
TableSection: CBITableSection,
GridSection: CBIGridSection,
NamedSection: CBINamedSection,
Value: CBIValue,
DynamicList: CBIDynamicList,
ListValue: CBIListValue,
Flag: CBIFlagValue,
MultiValue: CBIMultiValue,
TextValue: CBITextValue,
DummyValue: CBIDummyValue,
Button: CBIButtonValue,
HiddenValue: CBIHiddenValue,
FileUpload: CBIFileUpload,
SectionValue: CBISectionValue
});