Initial support for full menu
This commit is contained in:
Nathan Byrd
parent
ef65651c9d
commit
3c71f88cb8
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@ -0,0 +1,392 @@
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/* jslint node: true */
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'use strict';
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// ENiGMA½
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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 formatString = require('./string_format');
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const pipeToAnsi = require('./color_codes.js').pipeToAnsi;
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// deps
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const util = require('util');
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const _ = require('lodash');
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exports.FullMenuView = FullMenuView;
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function FullMenuView(options) {
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options.cursor = options.cursor || 'hide';
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options.justify = options.justify || 'left';
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MenuView.call(this, options);
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this.initDefaultWidth();
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const self = this;
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// we want page up/page down by default
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if (!_.isObject(options.specialKeyMap)) {
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Object.assign(this.specialKeyMap, {
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'page up': ['page up'],
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'page down': ['page down'],
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});
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}
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this.autoAdjustHeightIfEnabled = function() {
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if (this.autoAdjustHeight) {
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this.dimens.height = (this.items.length * (this.itemSpacing + 1)) - (this.itemSpacing);
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this.dimens.height = Math.min(this.dimens.height, this.client.term.termHeight - this.position.row);
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}
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// Calculate number of items visible after adjusting height
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this.itemsPerRow = Math.floor(this.dimens.height / (this.itemSpacing + 1));
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// handle case where one can fit at the end
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if (this.dimens.height > (this.itemsPerRow * (this.itemSpacing + 1))) {
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this.itemsPerRow++;
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}
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// Final check to make sure we don't try to display more than we have
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if (this.itemsPerRow > this.items.length) {
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this.itemsPerRow = this.items.length;
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}
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};
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this.autoAdjustHeightIfEnabled();
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this.getSpacer = function() {
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return new Array(self.itemHorizSpacing + 1).join(this.fillChar);
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}
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this.cachePositions = function() {
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if (this.positionCacheExpired) {
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this.autoAdjustHeightIfEnabled();
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var col = self.position.col;
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var row = self.position.row;
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var spacer = self.getSpacer();
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var itemInRow = 0;
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for (var i = 0; i < self.items.length; ++i) {
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itemInRow++;
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self.items[i].row = row;
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self.items[i].col = col;
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row += this.itemSpacing + 1;
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// handle going to next column
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if (itemInRow == this.itemsPerRow) {
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itemInRow = 0;
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row = self.position.row;
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var maxLength = 0;
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for (var j = 0; j < this.itemsPerRow; j++) {
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// TODO: handle complex items
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var itemLength = this.items[i - j].text.length;
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if (itemLength > maxLength) {
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maxLength = itemLength;
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}
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}
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// set length on each item in the column
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for (var j = 0; j < this.itemsPerRow; j++) {
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self.items[i - j].fixedLength = maxLength;
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}
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// increment the column
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col += maxLength + spacer.length + 1;
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}
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// also have to calculate the max length on the last column
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else if (i == self.items.length - 1) {
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var maxLength = 0;
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for (var j = 0; j < this.itemsPerRow; j++) {
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if (self.items[i - j].col != self.items[i].col) {
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break;
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}
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var itemLength = this.items[i - j].text.length;
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if (itemLength > maxLength) {
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maxLength = itemLength;
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}
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}
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// set length on each item in the column
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for (var j = 0; j < this.itemsPerRow; j++) {
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if (self.items[i - j].col != self.items[i].col) {
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break;
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}
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self.items[i - j].fixedLength = maxLength;
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}
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}
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}
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}
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this.positionCacheExpired = false;
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};
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this.drawItem = function(index) {
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const item = self.items[index];
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if (!item) {
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return;
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}
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const cached = this.getRenderCacheItem(index, item.focused);
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if (cached) {
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return self.client.term.write(`${ansi.goto(item.row, item.col)}${cached}`);
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}
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let text;
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let sgr;
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if (item.focused && self.hasFocusItems()) {
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const focusItem = self.focusItems[index];
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text = focusItem ? focusItem.text : item.text;
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sgr = '';
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} else if (this.complexItems) {
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text = pipeToAnsi(formatString(item.focused && this.focusItemFormat ? this.focusItemFormat : this.itemFormat, item));
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sgr = this.focusItemFormat ? '' : (index === self.focusedItemIndex ? self.getFocusSGR() : self.getSGR());
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} else {
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text = strUtil.stylizeString(item.text, item.focused ? self.focusTextStyle : self.textStyle);
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sgr = (index === self.focusedItemIndex ? self.getFocusSGR() : self.getSGR());
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}
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text = `${sgr}${strUtil.pad(text, this.dimens.width, this.fillChar, this.justify)}`;
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self.client.term.write(`${ansi.goto(item.row, item.col)}${text}`);
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this.setRenderCacheItem(index, text, item.focused);
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};
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}
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util.inherits(FullMenuView, MenuView);
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FullMenuView.prototype.redraw = function() {
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FullMenuView.super_.prototype.redraw.call(this);
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this.cachePositions();
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// :TODO: rename positionCacheExpired to something that makese sense; combine methods for such
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if (this.positionCacheExpired) {
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this.autoAdjustHeightIfEnabled();
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this.positionCacheExpired = false;
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}
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// erase old items
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// :TODO: optimize this: only needed if a item is removed or new max width < old.
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if (this.oldDimens) {
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const blank = new Array(Math.max(this.oldDimens.width, this.dimens.width)).join(' ');
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let seq = ansi.goto(this.position.row, this.position.col) + this.getSGR() + blank;
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let row = this.position.row + 1;
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const endRow = (row + this.oldDimens.height) - 2;
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while (row <= endRow) {
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seq += ansi.goto(row, this.position.col) + blank;
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row += 1;
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}
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this.client.term.write(seq);
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delete this.oldDimens;
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}
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if (this.items.length) {
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for (let i = 0; i < this.items.length; ++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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FullMenuView.prototype.setHeight = function(height) {
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FullMenuView.super_.prototype.setHeight.call(this, height);
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this.positionCacheExpired = true;
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this.autoAdjustHeight = false;
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};
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FullMenuView.prototype.setPosition = function(pos) {
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FullMenuView.super_.prototype.setPosition.call(this, pos);
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this.positionCacheExpired = true;
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};
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FullMenuView.prototype.setFocus = function(focused) {
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FullMenuView.super_.prototype.setFocus.call(this, focused);
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this.redraw();
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};
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FullMenuView.prototype.setFocusItemIndex = function(index) {
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FullMenuView.super_.prototype.setFocusItemIndex.call(this, index); // sets this.focusedItemIndex
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this.redraw();
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};
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FullMenuView.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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this.focusPrevious();
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} else if (this.isKeyMapped('down', key.name)) {
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this.focusNext();
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} else if (this.isKeyMapped('left', key.name)) {
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this.focusPreviousColumn();
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} else if (this.isKeyMapped('right', key.name)) {
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this.focusNextColumn();
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} else if (this.isKeyMapped('page up', key.name)) {
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this.focusPreviousPageItem();
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} else if (this.isKeyMapped('page down', key.name)) {
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this.focusNextPageItem();
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} else if (this.isKeyMapped('home', key.name)) {
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this.focusFirst();
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} else if (this.isKeyMapped('end', key.name)) {
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this.focusLast();
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}
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}
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FullMenuView.super_.prototype.onKeyPress.call(this, ch, key);
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};
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FullMenuView.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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FullMenuView.prototype.setItems = function(items) {
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// if we have items already, save off their drawing area so we don't leave fragments at redraw
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if (this.items && this.items.length) {
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this.oldDimens = Object.assign({}, this.dimens);
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}
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FullMenuView.super_.prototype.setItems.call(this, items);
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this.positionCacheExpired = true;
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};
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FullMenuView.prototype.removeItem = function(index) {
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if (this.items && this.items.length) {
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this.oldDimens = Object.assign({}, this.dimens);
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}
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FullMenuView.super_.prototype.removeItem.call(this, index);
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};
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// :TODO: Apply draw optimizaitons when only two items need drawn vs entire view!
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FullMenuView.prototype.focusNext = function() {
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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.redraw();
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FullMenuView.super_.prototype.focusNext.call(this);
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};
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FullMenuView.prototype.focusPrevious = function() {
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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.redraw();
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FullMenuView.super_.prototype.focusPrevious.call(this);
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};
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FullMenuView.prototype.focusPreviousColumn = function() {
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this.focusedItemIndex = this.focusedItemIndex - this.itemsPerRow;
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if (this.focusedItemIndex < 0) {
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// add the negative index to the end of the list
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this.focusedItemIndex = this.items.length + this.focusedItemIndex;
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}
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this.redraw();
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// TODO: This isn't specific to Previous, may want to replace in the future
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FullMenuView.super_.prototype.focusPrevious.call(this);
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};
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FullMenuView.prototype.focusNextColumn = function() {
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this.focusedItemIndex = this.focusedItemIndex + this.itemsPerRow;
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if (this.focusedItemIndex > this.items.length - 1) {
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// add the overflow to the beginning of the list
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this.focusedItemIndex = this.focusedItemIndex - this.items.length;
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}
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this.redraw();
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// TODO: This isn't specific to Next, may want to replace in the future
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FullMenuView.super_.prototype.focusNext.call(this);
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};
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FullMenuView.prototype.focusPreviousPageItem = function() {
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//
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// Jump to current - up to page size or top
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// If already at the top, jump to bottom
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//
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if (0 === this.focusedItemIndex) {
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return this.focusPrevious(); // will jump to bottom
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}
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const index = Math.max(this.focusedItemIndex - this.dimens.height, 0);
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this.setFocusItemIndex(index);
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return FullMenuView.super_.prototype.focusPreviousPageItem.call(this);
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};
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FullMenuView.prototype.focusNextPageItem = function() {
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//
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// Jump to current + up to page size or bottom
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// If already at the bottom, jump to top
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//
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if (this.items.length - 1 === this.focusedItemIndex) {
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return this.focusNext(); // will jump to top
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}
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const index = Math.min(this.focusedItemIndex + this.maxVisibleItems, this.items.length - 1);
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this.setFocusItemIndex(index);
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return FullMenuView.super_.prototype.focusNextPageItem.call(this);
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};
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FullMenuView.prototype.focusFirst = function() {
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this.setFocusItemIndex(0);
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return FullMenuView.super_.prototype.focusFirst.call(this);
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};
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FullMenuView.prototype.focusLast = function() {
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const index = this.items.length - 1;
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this.setFocusItemIndex(index);
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return FullMenuView.super_.prototype.focusLast.call(this);
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};
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FullMenuView.prototype.setFocusItems = function(items) {
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FullMenuView.super_.prototype.setFocusItems.call(this, items);
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this.positionCacheExpired = true;
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};
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FullMenuView.prototype.setItemSpacing = function(itemSpacing) {
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FullMenuView.super_.prototype.setItemSpacing.call(this, itemSpacing);
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this.positionCacheExpired = true;
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};
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FullMenuView.prototype.setItemHorizSpacing = function(itemHorizSpacing) {
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FullMenuView.super_.prototype.setItemHorizSpacing.call(this, itemHorizSpacing);
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this.positionCacheExpired = true;
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};
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@ -8,6 +8,7 @@ const EditTextView = require('./edit_text_view.js').EditTextView;
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const ButtonView = require('./button_view.js').ButtonView;
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const VerticalMenuView = require('./vertical_menu_view.js').VerticalMenuView;
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const HorizontalMenuView = require('./horizontal_menu_view.js').HorizontalMenuView;
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const FullMenuView = require('./full_menu_view.js').FullMenuView;
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const SpinnerMenuView = require('./spinner_menu_view.js').SpinnerMenuView;
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const ToggleMenuView = require('./toggle_menu_view.js').ToggleMenuView;
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const MaskEditTextView = require('./mask_edit_text_view.js').MaskEditTextView;
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@ -27,7 +28,7 @@ function MCIViewFactory(client) {
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}
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MCIViewFactory.UserViewCodes = [
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'TL', 'ET', 'ME', 'MT', 'PL', 'BT', 'VM', 'HM', 'SM', 'TM', 'KE',
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'TL', 'ET', 'ME', 'MT', 'PL', 'BT', 'VM', 'HM', 'FM', 'SM', 'TM', 'KE',
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//
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// XY is a special MCI code that allows finding positions
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@ -164,6 +165,18 @@ MCIViewFactory.prototype.createFromMCI = function(mci) {
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view = new HorizontalMenuView(options);
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break;
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// Full Menu
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case 'FM' :
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setOption(0, 'itemSpacing');
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setOption(1, 'itemHorizSpacing');
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setOption(2, 'justify');
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setOption(3, 'textStyle');
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setFocusOption(0, 'focusTextStyle');
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view = new FullMenuView(options);
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break;
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case 'SM' :
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setOption(0, 'textStyle');
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setOption(1, 'justify');
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@ -38,7 +38,8 @@ function MenuView(options) {
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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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this.itemSpacing = _.isNumber(options.itemSpacing) ? options.itemSpacing : 0;
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this.itemHorizSpacing = _.isNumber(options.itemHorizSpacing) ? options.itemHorizSpacing : 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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@ -253,9 +254,18 @@ MenuView.prototype.setItemSpacing = function(itemSpacing) {
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this.positionCacheExpired = true;
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};
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MenuView.prototype.setItemHorizSpacing = function(itemHorizSpacing) {
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itemSpacing = parseInt(itemHorizSpacing);
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assert(_.isNumber(itemHorizSpacing));
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this.itemHorizSpacing = itemHorizSpacing;
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this.positionCacheExpired = true;
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};
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MenuView.prototype.setPropertyValue = function(propName, value) {
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switch(propName) {
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case 'itemSpacing' : this.setItemSpacing(value); break;
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case 'itemHorizSpacing' : this.setItemHorizSpacing(value); break;
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case 'items' : this.setItems(value); break;
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case 'focusItems' : this.setFocusItems(value); break;
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case 'hotKeys' : this.setHotKeys(value); break;
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