neo-blessed/lib/widgets/message.js

128 lines
2.9 KiB
JavaScript

/**
* message.js - message element for blessed
* Copyright (c) 2013-2015, Christopher Jeffrey and contributors (MIT License).
* https://github.com/chjj/blessed
*/
/**
* Modules
*/
var helpers = require('../helpers');
var Node = require('./node');
var Box = require('./box');
/**
* Message / Error
*/
function Message(options) {
var self = this;
if (!(this instanceof Node)) {
return new Message(options);
}
options = options || {};
options.tags = true;
Box.call(this, options);
}
Message.prototype.__proto__ = Box.prototype;
Message.prototype.type = 'message';
Message.prototype.log =
Message.prototype.display = function(text, time, callback) {
var self = this;
if (typeof time === 'function') {
callback = time;
time = null;
}
if (time == null) time = 3;
// Keep above:
// var parent = this.parent;
// this.detach();
// parent.append(this);
if (this.scrollable) {
this.screen.saveFocus();
this.focus();
this.scrollTo(0);
}
this.show();
this.setContent(text);
this.screen.render();
if (time === Infinity || time === -1 || time === 0) {
var end = function() {
if (end.done) return;
end.done = true;
if (self.scrollable) {
try {
self.screen.restoreFocus();
} catch (e) {
;
}
}
self.hide();
self.screen.render();
if (callback) callback();
};
setTimeout(function() {
self.onScreenEvent('keypress', function fn(ch, key) {
if (key.name === 'mouse') return;
if (self.scrollable) {
if ((key.name === 'up' || (self.options.vi && key.name === 'k'))
|| (key.name === 'down' || (self.options.vi && key.name === 'j'))
|| (self.options.vi && key.name === 'u' && key.ctrl)
|| (self.options.vi && key.name === 'd' && key.ctrl)
|| (self.options.vi && key.name === 'b' && key.ctrl)
|| (self.options.vi && key.name === 'f' && key.ctrl)
|| (self.options.vi && key.name === 'g' && !key.shift)
|| (self.options.vi && key.name === 'g' && key.shift)) {
return;
}
}
if (self.options.ignoreKeys && ~self.options.ignoreKeys.indexOf(key.name)) {
return;
}
self.removeScreenEvent('keypress', fn);
end();
});
// XXX May be affected by new element.options.mouse option.
if (!self.options.mouse) return;
self.onScreenEvent('mouse', function fn(data) {
if (data.action === 'mousemove') return;
self.removeScreenEvent('mouse', fn);
end();
});
}, 10);
return;
}
setTimeout(function() {
self.hide();
self.screen.render();
if (callback) callback();
}, time * 1000);
};
Message.prototype.error = function(text, time, callback) {
return this.display('{red-fg}Error: ' + text + '{/red-fg}', time, callback);
};
/**
* Expose
*/
module.exports = Message;