127 lines
3.0 KiB
JavaScript
127 lines
3.0 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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var _ = require('lodash');
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exports.MenuView = MenuView;
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function MenuView(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, options);
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var self = this;
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if(options.items) {
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this.setItems(options.items);
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} else {
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this.items = [];
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}
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this.caseInsensitiveHotKeys = miscUtil.valueWithDefault(options.caseInsensitiveHotKeys, true);
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this.setHotKeys(options.hotKeys);
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this.focusedItemIndex = options.focusedItemIndex || 0;
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this.focusedItemIndex = this.items.length >= this.focusedItemIndex ? this.focusedItemIndex : 0;
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this.itemSpacing = _.isNumber(options.itemSpacing) ? options.itemSpacing : 0;
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// :TODO: probably just replace this with owner draw / pipe codes / etc. more control, less specialization
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this.focusPrefix = options.focusPrefix || '';
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this.focusSuffix = options.focusSuffix || '';
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this.fillChar = miscUtil.valueWithDefault(options.fillChar, ' ').substr(0, 1);
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this.justify = options.justify || 'none';
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/*
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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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/*
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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.redrawAllItems = 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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/*
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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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});
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});
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}
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};
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MenuView.prototype.setItemSpacing = function(itemSpacing) {
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assert(_.isNumber(itemSpacing));
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this.itemSpacing = itemSpacing;
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this.positionCacheExpired = true;
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};
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MenuView.prototype.setHotKeys = function(hotKeys) {
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if(_.isObject(hotKeys)) {
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if(this.caseInsensitiveHotKeys) {
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this.hotKeys = {};
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for(var key in hotKeys) {
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this.hotKeys[key.toLowerCase()] = hotKeys[key];
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}
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} else {
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this.hotKeys = hotKeys;
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}
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}
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};
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