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Favorites

<et2-favorites> | Et2Favorites
Since 23.1

Overview

Favorites widget, designed for use in the nextmatch header

The primary control is a split/dropdown button. Clicking on the left side of the button filters the nextmatch list by the user’s default filter. The right side of the button gives a list of saved filters, pulled from preferences. Clicking a filter from the dropdown list sets the filters as saved.

Favorites can also automatically be shown in the sidebox, using the special ID favorite_sidebox. Use the following code to generate the sidebox section: $GLOBALS[‘egw’]->framework->sidebox($appname,lang(‘Favorites’),array( array( ‘no_lang’ => true, ‘text’=>‘’, ‘link’=>false, ‘icon’ => false ) )); This sidebox list will be automatically generated and kept up to date.

Favorites are implemented by saving the values for [column] filters. Filters are stored in preferences, with the name favorite_. The favorite favorite used for clicking on the filter button is stored in nextmatch–-favorite.

<et2-favorites>
</et2-favorites>

Examples

Filtering favourites

Favourites are handled at the application level, but sometimes you want to limit which favourites are shown for complicated applications. You can filter the favourites by listening for the et2-load event and modifying the list. Make sure the listener is bound before the widget is loaded so you catch the event.

document.body.querySelector("form#projectmanager-list").addEventListener("et2-load", (e) =>
{
	// Make sure the target is a favourite, other things fire et2-load
	if(e.target instanceof Et2Favorites)
	{
		this.filterFavourites(e.detail);
	}
});

function filterFavourites(favouriteList)
{
	Object.keys(favouriteList).forEach(favouriteName =>
	{
		// Remove any favourites that don't have a "u" in the name
		if(!favouriteName.includes("u"))
		{
			delete favouriteList[favouriteName];
		}
	})
}

A more complete example using the favourites setting in nextmatch:

// PHP:

$content['nm'] => [
    ...
    // Set favourites filter.  N.B. that this will be included in the favourite
    'favorites' => ['sub_filter' => 'sub_a']
]
// app.ts:
constructor()
{
	super("appname");
	// any other setup ...

	// Add listener for favourite loads
	this.handleFavouriteLoad = this.handleFavouriteLoad.bind(this);
	document.body.querySelector("form#appname-list").addEventListener("et2-load", this.handleFavouriteLoad);
}
destroy(_app)
{
	super.destroy(_app);
	// other cleanup ...

	// Remove favourite load listener.  
	// This could also be done after the template loads, if it only needs to be done once
	document.body.querySelector("form#appname-list").removeEventListener("et2-load", this.handleFavouriteLoad);
}

handleFavouriteLoad(e)
{
	// Make sure the target is a favourite, other things fire et2-load
	if(e.target instanceof Et2Favorites)
	{
		this.filterFavourites(e.target.filters?.sub_filter ?? "", e.detail);
	}
}

filterFavourites(sub_filter, favouriteList)
{
	Object.keys(favouriteList).forEach(favouriteName =>
	{
		// Filter to match parent nextmatch settings, only showing matches
		if(favouriteList[favouriteName].state?.favourites?.sub_filter !== sub_filter)
		{
			delete favouriteList[favouriteName];
		}
	});
}

Slots

Name Description
prefix Content placed before the main button’s label
suffix Content placed after the main button’s label

Learn more about using slots.

Inherited properties (27)

Dropdown Button

Name Description
accesskey Accesskey provides a hint for generating a keyboard shortcut for the current element. The attribute value must consist of a single printable character.
actions Set Actions on the widget Each action is defined as an object: move: { type: “drop”, acceptedTypes: “mail”, icon: “move”, caption: “Move to” onExecute: javascript:mail_move” } This will turn the widget into a drop target for “mail” drag types. When “mail” drag types are dropped, the global function mail_move(egwAction action, egwActionObject sender) will be called. The ID of the dragged “mail” will be in sender.id, some information about the sender will be in sender.context. The etemplate2 widget involved can typically be found in action.parent.data.widget, so your handler can operate in the widget context easily. The location varies depending on your action though. It might be action.parent.parent.data.widget To customise how the actions are handled for a particular widget, override _link_actions(). It handles the more widget-specific parts.
align Used by Et2Box to determine alignment. Allowed values are left, right
autofocus Have browser focus this input on load. Overrides etemplate2.focusOnFirstInput(), use only once per page https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attributes
class CSS Class. This class is applied to the outside, on the web component itself. Due to how WebComponents work, this might not change anything inside the component.
data Set the dataset from a CSV
defaultPreference Name of a preference to read/store the default selected option in. When set, the option matching the stored preference value (falling back to whichever option is marked default: true) is preselected on load, and every user selection is written back to the same preference - so the main/left part of the button becomes a quick-action for “whatever was last picked”, instead of doing nothing until the user has opened the menu at least once.
deferredProperties Any attribute that refers to row content cannot be resolved immediately, but some like booleans cannot stay a string because it’s a boolean attribute. We store them for later, and parse when they’re fully in their row. If you are creating a widget that can go in a nextmatch row, and it has boolean attributes that can change for each row, add those attributes into deferredProperties
disabled Defines whether this widget is visibly disabled. The widget is still visible, but clearly cannot be interacted with. Widgets disabled in the template will not return a value to the application code, even if re-enabled via javascript before submitting. To allow a disabled widget to be re-enabled and return a value, disable via javascript in the app’s et2_ready() instead of an attribute in the template file.
dom_id Get the actual DOM ID, which has been prefixed to make sure it’s unique.
emptyLabel Textual label for first row, eg: ‘All’ or ‘None’. It’s value will be ″
hasFeedbackFor Get a list of feedback types
hidden The widget is not visible. As far as the user is concerned, the widget does not exist. Widgets hidden with an attribute in the template may not be created in the DOM, and will not return a value. Widgets can be hidden after creation, and they may return a value if hidden this way.
iconOnly Show only the selected option’s icon on the main button, not its text label
id Get the ID of the widget
label The label of the widget Legacy support for labels with %s that get wrapped around the widget Not the best way go with webComponents - shouldn’t modify their DOM like this
noLang Disable any translations for the widget
parentId Parent is different than what is specified in the template / hierarchy. Widget ID of another node to insert this node into instead of the normal location
select_options Select box options Will be found automatically based on ID and type, or can be set explicitly in the template using
statustext Tooltip which is shown for this element on hover
styles WebComponent *
translate List of properties that get translated
_optionTargetNode Get the node where we’re putting the options If this were a normal selectbox, this would be just the
needed Compatibility for deprecated name “needed”
options Get property-values as object
supportedWidgetClasses et2_widget compatability

LitElement

Name Description
updateComplete A read-only promise that resolves when the component has finished updating.

Events

Name React Event Description Event Detail
et2-load Fires when the favourites are loaded. The favourite list is in event.detail, and can be filtered. CustomEvent
change EVENT NEEDS A DESCRIPTION Event
preferenceChange EVENT NEEDS A DESCRIPTION CustomEvent

Learn more about events.

Methods

Name Description Arguments
favoriteByID() Get a favorite from the list by id id: string
setNextmatch() Set the nextmatch to filter From et2_INextmatchHeader interface nextmatch: et2_nextmatch
_add_current() Add the current settings as a new favorite -
_load_favorites() Load favorites from preferences app:

Learn more about methods.

Inherited methods (31)

Dropdown Button

Name Description
checkCreateNamespace() Checks whether a namespace exists for this element in the content array. If yes, an own perspective of the content array is created. If not, the parent content manager is used. Constructor attributes are passed in case a child needs to make decisions
clone() Creates a copy of this widget.
createElementFromNode() Create a et2_widget from an XML node. First the type and attributes are read from the node. Then the readonly & modifications arrays are checked for changes specific to the loaded data. Then the appropriate constructor is called. After the constructor returns, the widget has a chance to further initialize itself from the XML node when the widget’s loadFromXML() method is called with the node.
et2HandleBlur() If the value is unchanged, put any held validation messages back Named et2HandleBlur to avoid overwriting handleBlur() in Shoelace components
et2HandleFocus() When input receives focus, clear any validation errors. If the value is the same on blur, we’ll put them back The ones from the server (ManualMessage) can interfere with submitting. Named et2HandleFocus to avoid overwriting handleFocus() in Shoelace components
getArrayMgr() Returns the array manager object for the given part
getArrayMgrs() Returns an associative array containing the top-most array managers.
getChildren() Get child widgets Use .children to get web component children
getInputNode() Get input to e.g. set aria-attributes
getInstanceManager() Returns the instance manager
getPath() Returns the path into the data array. By default, array manager takes care of this, but some extensions need to override this
getRoot() Returns the base widget Usually this is the same as getInstanceManager().widgetContainer
handleSlChange() Handle sl-change event from Shoelace components and dispatch a change event so anything listening for change events can react to it instead of having to listen for both sl-change and change.
isValid() Used by etemplate2 to determine if we can submit or not
loadFromXML() Load extra stuff from the template node. In particular, we’re looking for any
loadingFinished() Needed for legacy compatability.
optionSearch() Search options for a given value, returning the first matching option
parseXMLAttrs() The parseXMLAttrs function takes an XML DOM attributes object and adds the given attributes to the _target associative array. This function also parses the legacyOptions. N.B. This is only used for legacy widgets. WebComponents use transformAttributes() and do their own handling of attributes.
set_label() NOT the setter, since we cannot add to the DOM before connectedCallback() TODO: This is not best practice. Should just set property, DOM modification should be done in render https://lit-element.polymer-project.org/guide/templates#design-a-performant-template
setArrayMgr() Sets the array manager for the given part
setArrayMgrs() Sets all array manager objects - this function can be used to set the root array managers of the container object.
setInstanceManager() Set the instance manager Normally this is not needed as it’s set on the top-level container, and we just return that reference
submit() Called whenever the template gets submitted. We return false if the widget is not valid, which cancels the submission.
validate() Massively simplified validate, as compared to what ValidatorMixin gives us, since ValidatorMixin extends FormControlMixin which breaks SlSelect’s render() We take all validators for the widget, and if there’s a value (or field is required) we check the value with each validator. For array values we check each element with each validator. If the value does not pass the validator, we collect the message and display feedback to the user. We handle validation errors from the server with ManualMessages, which always “fail”. If the value is empty, we only validate if the field is required.
_emptyLabelTemplate() Render the “empty label”, used when the selectbox does not currently have a value
_oldChange() Change handler calling custom handler set via onchange attribute
destroy() et2_widget compatability
set_class() Set the widget class
set_disabled() Wrapper on this.disabled because legacy had it.
set_select_options() Set select options
set_statustext() supports legacy set_statustext