Phloem

In vascular plants, phloem is the living tissue that carries organic nutrients, particularly sucrose, a sugar, to all parts of the plant where needed

Phloem uses connects consjs streams to userinterfaces created with phloem herbalism framework.

User interface functions

scope scope is used to save instance specific data in an element.

p.scope(fn);

It is possible to create foliage elements that can be used many times. In order to keep state separate from each usage store it with scope.

var globalVariable = 0;

p.scope(function(){
    var variableForThisInstance = (globalVariable = globalVariable + 1);
    return f.p("The value for this instance is ", valueforThisInsance);
});

bind is used to bind data from a stream to a position in a UI.

p.bind(stream, fn, initial);

The first value passed to fn is initial. After that each value from stream will be past to fn in sequence.

fn should return a foliage compatible element.

p.bind(someStream, function(value){return f.p(value.name);}, {name: 'no name given'});

collectData is used to incrementally collect data. Intended for use in incrementally validating forms.

p.collectData(fn, initial);

fn is passed a context and a value starting with initial. The context is used to connect input fields to the collected dataset. For each change a new value will be presented and the form will be rerendered to present the new state.

Fn should present a valid foliage element after each iteration.

function validateName(name) {
   return name && (name.length > 4);
};

p.collectData(
  function(context, value) {
    return f.form(
        f.input(
           {name: 'name',
            value: value.name,
            placeholder: 'name',
            classes: validateName(value.name) ? ['valid'] : ['invalid']
            },
           context.attach('name')
        ),
        f.input(
           {type: 'submit',
            onSubmit: function(event){
               event.preventDefault();
               event.stopPropagation();
               resultStream.push(value);
            }},
            validateName(name) ? {} : {disabled:'disabled'}
        )
    )
  },
  {name:'default name'}
)