Jifty::Web::Form::Clickable(3)

NAME
Jifty::Web::Form::Clickable - Some item that can be clicked on -- either a button or a link.

DESCRIPTION

METHODS

  accessors
Clickable adds "url", "escape_label", "continuation", "call", "returns", "submit", and "preserve_state" to the list of accessors and mutators, in addition to those offered by "accessors" in Jifty::Web::Form::Element.

  new PARAMHASH
Creates a new Jifty::Web::Form::Clickable object. Depending on the requirements, it may render as a link or as a button. Possible parameters in the PARAMHASH are:

url Sets the page that the user will end up on after they click the button. Defaults to the current page.

label
    The text on the clickable object.

tooltip
    Additional information about the link target.

escape_label
    If set to true, HTML escapes the content of the label and tooltip before displaying them. This is only relevant for objects that are rendered as HTML links. The default is true.

continuation
    The current continuation for the link. Defaults to the current continuation now, if there is one. This may be either a Jifty::Continuation object, or the "id" of such.

call
    The continuation to call when the link is clicked. This will happen after actions have run, if any. Like "continuation", this may be a Jifty::Continuation object or the "id" of such.

returns
    Passing this parameter implies the creation of a continuation when the link is clicked. It takes an anonymous hash of return location to where the return value is pulled from -- that is, the same structure the "parameters" method takes.

    See "query_parameters" in Jifty::Request::Mapper for details.

submit
    A list of actions to run when the object is clicked. This may be an array reference or a single element; each element may either be a moniker or, a Jifty::Action or a hashref with the keys 'action' and 'arguments'. An undefined value submits all actions in the form, an empty list reference (the default) submits none.

    In the most complex case, you have something like this:

        submit => [
                      {   action    => $my_action,
                          arguments => {
                              name => 'Default McName',
                              age  => '23'
                          },
                      },
                      $my_other_action,
                      'some-other-action-moniker'
                  ]

    If you specify arguments in the submit block for a button, they will override any values from form fields submitted by the user.

preserve_state
    A boolean; whether state variables are preserved across the link. Defaults to true if there are any AJAX actions on the link, false otherwise.

parameters
    A hash reference of query parameters that go on the link or button. These will end up being submitted exactly like normal query parameters.

as_button
    By default, Jifty will attempt to make the clickable into a link rather than a button, if there are no actions to run on submit. Providing a true value for "as_button" forces generate to produce a Jifty::Web::Form::Clickable::InlineButton instead of a Jifty::Web::Form::Link.

as_link
    Attempt to rework a button into displaying as a link -- note that this only works in javascript browsers. Supplying both "as_button" and "as_link" will work, and not as perverse as it might sound at first -- it allows you to make any simple GET request into a POST request, while still appearing as a link (a GET request).

target
    For things that start off as links, give them an html "target" attribute.

Anything from Jifty::Web::Form::Element
    Note that this includes the "onclick" parameter, which allows you to attach javascript to your Clickable object, but be careful that your Javascript looks like "return someFunction();", or you may get an unexpected error from your browser.

  url [VALUE]
Gets or sets the page that the user will end up on after they click the button. Defaults to the current page.

  label [VALUE]
Gets or sets the text on the clickable object.

  escape_label [VALUE]
Gets or sets if the label is escaped. This is only relevant for objects that are rendered as HTML links. The default is true.

  continuation [VALUE]
Gets or sets the current continuation for the link. Defaults to the current continuation now, if there is one. This may be either a Jifty::Continuation object, or the "id" of such.

  call [VALUE]
Gets or sets the continuation to call when the link is clicked. This will happen after actions have run, if any. Like "continuation", this may be a Jifty::Continuation object or the "id" of such.

  returns [VALUE]
Gets or sets the return value mapping from the continuation. See Jifty::Request::Mapper for details.

  submit [VALUE]
Gets or sets the list of actions to run when the object is clicked. This may be an array reference or a single element; each element may either be a moniker or a Jifty::Action. An undefined value submits all actions in the form, an empty list reference (the default) submits none.

  preserve_state [VALUE]
Gets or sets whether state variables are preserved across the link. Defaults to true if there are any AJAX actions on the link, false otherwise.

  parameter KEY VALUE
Sets the given HTTP parameter named "KEY" to the given "VALUE".

  state_variable KEY VALUE
Sets the state variable named "KEY" to "VALUE".

  region_fragment NAME PATH
Sets the path of the fragment named "NAME" to be "PATH".

  region_argument NAME ARG VALUE
Sets the value of the "ARG" argument on the fragment named "NAME" to "VALUE".

  parameters
Returns the generic list of HTTP form parameters attached to the link as a hash. Use of this is discouraged in favor or "post_parameters" and "get_parameters".

  post_parameters
Returns the hash of parameters as they would be needed on a POST request.

  get_parameters
Returns the hash of parameters as they would be needed on a GET request.

  complete_url
Returns the complete GET URL, as it would appear on a link.

  as_link
Returns the clickable as a Jifty::Web::Form::Link, if possible. Use of this method is discouraged in favor of "generate", which can better determine if a link or a button is more appropriate.

  as_button
Returns the clickable as a Jifty::Web::Form::Field::InlineButton, if possible. Use of this method is discouraged in favor of "generate", which can better determine if a link or a button is more appropriate.

  generate
Returns a Jifty::Web::Form::Field::InlineButton or Jifty::Web::Form::Link, whichever is more appropriate given the parameters.

  register_action ACTION
Registers the action if it isn't registered already, but only on the link. That is, the registration will not be seen by any other buttons in the form.