function Prompt() {
Base.apply(this, arguments);
if (!this.opt.source) {
this.throwParamError('source');
}
this.currentChoices = [];
this.firstRender = true;
this.selected = 0;
// Make sure no default is set (so it won't be printed)
this.opt.default = null;
this.paginator = new Paginator();
}n/a
super_ = function (question, rl, answers) {
// Setup instance defaults property
_.assign(this, {
answers: answers,
status: 'pending'
});
// Set defaults prompt options
this.opt = _.defaults(_.clone(question), {
validate: function () {
return true;
},
filter: function (val) {
return val;
},
when: function () {
return true;
}
});
// Check to make sure prompt requirements are there
if (!this.opt.message) {
this.throwParamError('message');
}
if (!this.opt.name) {
this.throwParamError('name');
}
// Normalize choices
if (Array.isArray(this.opt.choices)) {
this.opt.choices = new Choices(this.opt.choices, answers);
}
this.rl = rl;
this.screen = new ScreenManager(this.rl);
}n/a
super_ = function (question, rl, answers) {
// Setup instance defaults property
_.assign(this, {
answers: answers,
status: 'pending'
});
// Set defaults prompt options
this.opt = _.defaults(_.clone(question), {
validate: function () {
return true;
},
filter: function (val) {
return val;
},
when: function () {
return true;
}
});
// Check to make sure prompt requirements are there
if (!this.opt.message) {
this.throwParamError('message');
}
if (!this.opt.name) {
this.throwParamError('name');
}
// Normalize choices
if (Array.isArray(this.opt.choices)) {
this.opt.choices = new Choices(this.opt.choices, answers);
}
this.rl = rl;
this.screen = new ScreenManager(this.rl);
}n/a
_run = function (cb) {
cb();
}n/a
close = function () {
this.screen.releaseCursor();
}n/a
getQuestion = function () {
var message = chalk.green('?') + ' ' + chalk.bold(this.opt.message) + ' ';
// Append the default if available, and if question isn't answered
if (this.opt.default != null && this.status !== 'answered') {
message += chalk.dim('(' + this.opt.default + ') ');
}
return message;
}...
/**
* Render the prompt to screen
* @return {Prompt} self
*/
Prompt.prototype.render = function(error) {
// Render question
var content = this.getQuestion();
var bottomContent = '';
if (this.firstRender) {
var suggestText = this.opt.suggestOnly ? ', tab to autocomplete' : '';
content += chalk.dim('(Use arrow keys or type to search' + suggestText + ')');
}
// Render choices or answer depending on the state
...handleSubmitEvents = function (submit) {
var self = this;
var validate = runAsync(this.opt.validate);
var filter = runAsync(this.opt.filter);
var validation = submit.flatMap(function (value) {
return filter(value).then(function (filteredValue) {
return validate(filteredValue, self.answers).then(function (isValid) {
return {isValid: isValid, value: filteredValue};
}, function (err) {
return {isValid: err};
});
}, function (err) {
return {isValid: err};
});
}).share();
var success = validation
.filter(function (state) {
return state.isValid === true;
})
.take(1);
var error = validation
.filter(function (state) {
return state.isValid !== true;
})
.takeUntil(success);
return {
success: success,
error: error
};
}n/a
run = function () {
return new Promise(function (resolve) {
this._run(function (value) {
resolve(value);
});
}.bind(this));
}n/a
throwParamError = function (name) {
throw new Error('You must provide a `' + name + '` parameter');
}...
* Constructor
*/
function Prompt() {
Base.apply(this, arguments);
if (!this.opt.source) {
this.throwParamError('source');
}
this.currentChoices = [];
this.firstRender = true;
this.selected = 0;
...