Metadata-Version: 1.1
Name: plone.formwidget.masterselect
Version: 1.0
Summary: A z3c.form widget that controls the vocabulary or display of other fields on an edit page
Home-page: http://svn.plone.org/svn/plone/plone.formwidget.masterselect
Author: Jason Mehring
Author-email: nrgaway@yahoo.com
License: GPL
Description: MasterSelectWidget
        ==================
        
        This is a z3cform widget based on the orginal n Archetypes widget which
        controls the vocabulary or display of other fields on an edit page. It
        needs to be given information about which fields to control and how to control them.
        
        Feel free to help edit this document to help expain things better!
        
        Parameters
        ==========
        
        All the magic happens in the slave_fields parameter which should be a
        sequence of mappings. Each mapping is a description of a field controlled
        by this master field:
        
        name
        ----
        
        The name of the field to control on when the selection changes. The
        controlled field/widget may be of any type unless the 'vocabulary' or
        'value' action is used. When the action is 'vocabulary', the field must
        use either a MultiSelectionWidget, a SelectionWidget, or a
        MasterSelectWidget any of which must have the 'format' parameter set
        to 'select' (this is the default only for MasterSelectWidget). For
        'value', the widget must be simple enough to change the current value
        using element.value or elem.selectedIndex (StringWidget, SelectionWidget,
        AutoCompleteWidget, maybe others).
        
        masterID
        --------
        
        This is optional and will automatically be calculated if omited.  It can
        be used to speicify the exact master field is that is rendered in the html
        document.  Normally you will only need to set this for checkbox masters
        since their id has a -0 added like this: #form-widgets-checkboxfield-0.
        Note that this is a jQuery ID selector.
        
        slaveID
        -------
        
        This is optional and will automatically be calculated if omited.  It can
        be used to speicify the exact slave field name to control in the html form.
        Note that this is a jQuery ID selector, so something use something
        like this: #form-widgets-field
        
        action
        ------
        
        The type of action to perform on the slave field.  This can be:
        
                'vocabulary' --
                  which alters the vocabulary of the slave field using an
                  XMLHttpRequest call; 'hide' or 'show' which sets the slave field's
                  visibility style attribute;
                'enable' or 'disable' --
                  toggle which marks the target widget as enabled or disabled; or
                'show' or 'hide' --
                  toggle which marks the target widget as show or hide; or
                'value' --
                  which alters the value of another simple widget (StringWidget) on
                  selection change using an XMLHttpRequest call.
                'attr' --
                  which alters the value of a DOM element, specified by slaveID
                'jquery' --
                  * NOT YET IMPLEMENTED *
                  a complete jquery startment that will be sent back to the DOM to be
                  executed.
              To use the 'vocabulary' action, the
                  slave field must meet the widget requirements stated above. To use
                  the 'enable'/'disable' actions, the field must use a HTML widget
                  that can be enabled/disabled.
        
        vocab_method
        ------------
        
        The name of a method to call to retrieve the dynamic vocabulary for
        the slave field, or the value for the slave field when 'value' is used.
        For 'vocabulary', this must return a DisplayList. For 'value, it must
        return a string or msg_id.  The method must accept a parameter which
        will be used to pass the new value selected in the master widget. The
        name of this parameter defaults to 'master_value', but any name may be
        used as long as it is specified using the control_param element. Used
        only with 'action':'vocabulary' or 'action':'value'.
        
        control_param
        -------------
        
        As described above, this is the name of the paramter used when
        calling the vocab_method. Used only with 'action':'vocabulary',
        'action':'value', 'action':'attr' and 'action':'jquery'.
        
        hide_values
        -----------
        
        A sequence of values which when selected in the master widget cause
        the slave field/widget to be hidden, shown or disabled. The method
        used is determined by the 'action' element. Used only with
        'action':'hide', 'action':'enable', 'action':'disable' or
        'action':'show'. The value '()' (dont use quotes) will trigger on
        anything.
        
        siblings
        --------
        
        Boolean value to indictate the siblings of the slave field should be
        selected as well as the slave field itself.  This field can only be used
        with 'action':'hide' or 'action':'show' and is useful for hidng the label
        as well the slave field.
        
        empty_length
        ------------
        
        The position in the slave slave field to start deleting entries from the
        selection box when the selection box gets refreshed with new data.  The
        selection box options are deleted before the Ajax call so it can not be
        used until the call is complete.  This can be useful to prevent a small
        select box from appearing is the first option is '-------------'. This
        field is optional and can only be used with 'action':'vocabulary'.
        This value is also crecked before initating an ajax request.  The ajax
        request will not be executed if the master select length is equal to or less
        than this number to help prevent slave widgets executing out of order.
        Default value is 0.
        
        prevent_ajax_values
        -------------------
        
        A sequence of values which when selected in the master widget prevent the
        widget from iniating an ajax request. Use ('') as the value to prevent an
        ajax call if the select option value is ''.  The default is ().
        
        initial_trigger
        ---------------
        
        Boolean indicated if the master widget should initally be triggered on
        load.  Default is true for everythin except vocabulary in which case it is
        false to prevent an itital ajax call which usually will not be needed.
        
        A single MasterSelectWidget may control any number of slave fields, new
        fields are controlled by adding new mappings to the slave_fields list/tuple.
        A field which is the target of a MasterSelectWidget action may itself use
        a MasterSelectWidget to control other fields.
        
        The MasterSelectDemo type includes a number of master and slave widgets in
        different configurations. It is disabled by default, but you may import it
        through portal_setup tool and test it by checking the "implicitly addable"
        checkbox for it in the MasterSelectDemo entry in the portal_types tool.
        
        Enjoy!
        
        Contributors
        ============
        
        Author
        ------
        
        - Jason Mehring: nrgaway@gmail.com
        
        Orginal Author of Archetypes Widget
        -----------------------------------
        
        - Alec Mitchell: apm13@columbia.edu
        
        Contributors
        ------------
        
        - Dorneles Tremea: deo@plonesolutions.com
        - Cédric Messiant, Ecreall: cedricmessiant@ecreall.com
        - Vincent Fretin, Ecreall: vincentfretin@ecreall.com
        Changelog
        =========
        
        1.0 (2013-06-10)
        ----------------
        
        - Replaced jq by jQuery in generated scripts.
          [vincentfretin]
        
        - Removed plone.directives.form dependency
          Removed plone.app.jquerytools dependency
          Fixed demo profile
          Made some cleanup
          [cedricmessiant]
        
        - Initial checkin, ready for testing.
          [JMehring]
        
        
Platform: UNKNOWN
Classifier: Framework :: Plone
Classifier: Programming Language :: Python
Classifier: Topic :: Software Development :: Libraries :: Python Modules
