88 lines
2.1 KiB
JavaScript
88 lines
2.1 KiB
JavaScript
/* jslint node: true */
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'use strict';
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var View = require('./view.js').View;
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var ansi = require('./ansi_term.js');
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var miscUtil = require('./misc_util.js');
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var util = require('util');
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var assert = require('assert');
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exports.MenuView = MenuView;
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function MenuView(client, options) {
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options.acceptsFocus = miscUtil.valueWithDefault(options.acceptsFocus, true);
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options.acceptsInput = miscUtil.valueWithDefault(options.acceptsInput, true);
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View.call(this, client, options);
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var self = this;
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if(this.options.items) {
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this.setItems(this.options.items);
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} else {
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this.items = [];
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}
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this.focusedItemIndex = this.options.focusedItemIndex || 0;
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this.focusedItemIndex = this.items.length >= this.focusedItemIndex ? this.focusedItemIndex : 0;
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this.itemSpacing = this.options.itemSpacing || 1;
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this.itemSpacing = parseInt(this.itemSpacing, 10);
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this.focusPrefix = this.options.focusPrefix || '';
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this.focusSuffix = this.options.focusSuffix || '';
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this.fillChar = miscUtil.valueWithDefault(this.options.fillChar, ' ').substr(0, 1);
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this.justify = this.options.justify || 'none';
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this.moveSelection = function(fromIndex, toIndex) {
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assert(!self.positionCacheExpired);
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assert(fromIndex >= 0 && fromIndex <= self.items.length);
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assert(toIndex >= 0 && toIndex <= self.items.length);
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self.items[fromIndex].focused = false;
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self.drawItem(fromIndex);
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self.items[toIndex].focused = true;
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self.focusedItemIndex = toIndex;
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self.drawItem(toIndex);
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};
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/*
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this.cachePositions = function() {
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// :TODO: implement me!
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};
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this.drawItem = function(index) {
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// :TODO: implement me!
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};*/
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}
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util.inherits(MenuView, View);
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MenuView.prototype.redraw = function() {
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MenuView.super_.prototype.redraw.call(this);
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this.cachePositions();
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var count = this.items.length;
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for(var i = 0; i < count; ++i) {
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this.items[i].focused = this.focusedItemIndex === i;
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this.drawItem(i);
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}
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};
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MenuView.prototype.setItems = function(items) {
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var self = this;
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if(items) {
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this.items = []; // :TODO: better way?
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items.forEach(function onItem(itemText) {
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self.items.push({
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text : itemText,
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selected : false,
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});
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});
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}
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};
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