118 lines
3.3 KiB
JavaScript
118 lines
3.3 KiB
JavaScript
/* jslint node: true */
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'use strict';
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const MenuView = require('./menu_view.js').MenuView;
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const ansi = require('./ansi_term.js');
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const strUtil = require('./string_util.js');
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const util = require('util');
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const assert = require('assert');
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const _ = require('lodash');
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exports.SpinnerMenuView = SpinnerMenuView;
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function SpinnerMenuView(options) {
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options.justify = options.justify || 'left';
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options.cursor = options.cursor || 'hide';
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MenuView.call(this, options);
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this.initDefaultWidth();
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var self = this;
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/*
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this.cachePositions = function() {
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self.positionCacheExpired = false;
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};
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*/
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this.updateSelection = function() {
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//assert(!self.positionCacheExpired);
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assert(this.focusedItemIndex >= 0 && this.focusedItemIndex <= self.items.length);
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this.drawItem(this.focusedItemIndex);
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this.emit('index update', this.focusedItemIndex);
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};
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this.drawItem = function() {
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var item = self.items[this.focusedItemIndex];
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if(!item) {
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return;
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}
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this.client.term.write(ansi.goto(this.position.row, this.position.col));
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this.client.term.write(self.hasFocus ? self.getFocusSGR() : self.getSGR());
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var text = strUtil.stylizeString(item.text, item.focused ? self.focusTextStyle : self.textStyle);
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self.client.term.write(
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strUtil.pad(text, this.dimens.width + 1, this.fillChar, this.justify));
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};
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}
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util.inherits(SpinnerMenuView, MenuView);
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SpinnerMenuView.prototype.redraw = function() {
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SpinnerMenuView.super_.prototype.redraw.call(this);
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//this.cachePositions();
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this.drawItem(this.focusedItemIndex);
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};
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SpinnerMenuView.prototype.setFocus = function(focused) {
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SpinnerMenuView.super_.prototype.setFocus.call(this, focused);
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this.redraw();
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};
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SpinnerMenuView.prototype.setFocusItemIndex = function(index) {
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SpinnerMenuView.super_.prototype.setFocusItemIndex.call(this, index); // sets this.focusedItemIndex
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this.updateSelection(); // will redraw
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};
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SpinnerMenuView.prototype.onKeyPress = function(ch, key) {
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if(key) {
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if(this.isKeyMapped('up', key.name)) {
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if(0 === this.focusedItemIndex) {
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this.focusedItemIndex = this.items.length - 1;
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} else {
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this.focusedItemIndex--;
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}
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this.updateSelection();
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return;
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} else if(this.isKeyMapped('down', key.name)) {
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if(this.items.length - 1 === this.focusedItemIndex) {
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this.focusedItemIndex = 0;
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} else {
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this.focusedItemIndex++;
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}
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this.updateSelection();
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return;
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}
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}
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SpinnerMenuView.super_.prototype.onKeyPress.call(this, ch, key);
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};
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SpinnerMenuView.prototype.getData = function() {
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const item = this.getItem(this.focusedItemIndex);
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return _.isString(item.data) ? item.data : this.focusedItemIndex;
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};
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SpinnerMenuView.prototype.setItems = function(items) {
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SpinnerMenuView.super_.prototype.setItems.call(this, items);
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var longest = 0;
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for(var i = 0; i < this.items.length; ++i) {
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if(longest < this.items[i].text.length) {
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longest = this.items[i].text.length;
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}
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}
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this.dimens.width = longest;
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}; |