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110
node_modules/prompts/dist/elements/multiselect.js
generated
vendored
110
node_modules/prompts/dist/elements/multiselect.js
generated
vendored
@@ -10,7 +10,9 @@ const Prompt = require('./prompt');
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const _require2 = require('../util'),
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clear = _require2.clear,
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figures = _require2.figures,
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style = _require2.style;
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style = _require2.style,
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wrap = _require2.wrap,
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entriesToDisplay = _require2.entriesToDisplay;
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/**
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* MultiselectPrompt Base Element
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* @param {Object} opts Options
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@@ -20,6 +22,7 @@ const _require2 = require('../util'),
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* @param {String} [opts.warn] Hint shown for disabled choices
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* @param {Number} [opts.max] Max choices
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* @param {Number} [opts.cursor=0] Cursor start position
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* @param {Number} [opts.optionsPerPage=10] Max options to display at once
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* @param {Stream} [opts.stdin] The Readable stream to listen to
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* @param {Stream} [opts.stdout] The Writable stream to write readline data to
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*/
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@@ -36,6 +39,8 @@ class MultiselectPrompt extends Prompt {
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this.minSelected = opts.min;
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this.showMinError = false;
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this.maxChoices = opts.max;
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this.instructions = opts.instructions;
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this.optionsPerPage = opts.optionsPerPage || 10;
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this.value = opts.choices.map((ch, idx) => {
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if (typeof ch === 'string') ch = {
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title: ch,
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@@ -43,7 +48,8 @@ class MultiselectPrompt extends Prompt {
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};
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return {
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title: ch && (ch.title || ch.value || ch),
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value: ch && (ch.value || idx),
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description: ch && ch.description,
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value: ch && (ch.value === undefined ? idx : ch.value),
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selected: ch && ch.selected,
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disabled: ch && ch.disabled
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};
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@@ -150,57 +156,88 @@ class MultiselectPrompt extends Prompt {
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}
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}
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toggleAll() {
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if (this.maxChoices !== undefined || this.value[this.cursor].disabled) {
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return this.bell();
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}
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const newSelected = !this.value[this.cursor].selected;
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this.value.filter(v => !v.disabled).forEach(v => v.selected = newSelected);
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this.render();
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}
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_(c, key) {
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if (c === ' ') {
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this.handleSpaceToggle();
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} else if (c === 'a') {
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this.toggleAll();
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} else {
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return this.bell();
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}
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}
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renderInstructions() {
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return `
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Instructions:
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${figures.arrowUp}/${figures.arrowDown}: Highlight option
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${figures.arrowLeft}/${figures.arrowRight}/[space]: Toggle selection
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enter/return: Complete answer
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`;
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if (this.instructions === undefined || this.instructions) {
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if (typeof this.instructions === 'string') {
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return this.instructions;
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}
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return '\nInstructions:\n' + ` ${figures.arrowUp}/${figures.arrowDown}: Highlight option\n` + ` ${figures.arrowLeft}/${figures.arrowRight}/[space]: Toggle selection\n` + (this.maxChoices === undefined ? ` a: Toggle all\n` : '') + ` enter/return: Complete answer`;
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}
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return '';
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}
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renderOption(cursor, v, i) {
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let title;
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if (v.disabled) title = cursor === i ? color.gray().underline(v.title) : color.strikethrough().gray(v.title);else title = cursor === i ? color.cyan().underline(v.title) : v.title;
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return (v.selected ? color.green(figures.radioOn) : figures.radioOff) + ' ' + title;
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renderOption(cursor, v, i, arrowIndicator) {
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const prefix = (v.selected ? color.green(figures.radioOn) : figures.radioOff) + ' ' + arrowIndicator + ' ';
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let title, desc;
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if (v.disabled) {
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title = cursor === i ? color.gray().underline(v.title) : color.strikethrough().gray(v.title);
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} else {
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title = cursor === i ? color.cyan().underline(v.title) : v.title;
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if (cursor === i && v.description) {
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desc = ` - ${v.description}`;
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if (prefix.length + title.length + desc.length >= this.out.columns || v.description.split(/\r?\n/).length > 1) {
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desc = '\n' + wrap(v.description, {
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margin: prefix.length,
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width: this.out.columns
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});
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}
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}
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}
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return prefix + title + color.gray(desc || '');
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} // shared with autocompleteMultiselect
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paginateOptions(options) {
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const c = this.cursor;
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let styledOptions = options.map((v, i) => this.renderOption(c, v, i));
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const numOfOptionsToRender = 10; // if needed, can add an option to change this.
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let scopedOptions = styledOptions;
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let hint = '';
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if (styledOptions.length === 0) {
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if (options.length === 0) {
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return color.red('No matches for this query.');
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} else if (styledOptions.length > numOfOptionsToRender) {
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let startIndex = c - numOfOptionsToRender / 2;
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let endIndex = c + numOfOptionsToRender / 2;
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if (startIndex < 0) {
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startIndex = 0;
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endIndex = numOfOptionsToRender;
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} else if (endIndex > options.length) {
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endIndex = options.length;
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startIndex = endIndex - numOfOptionsToRender;
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}
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scopedOptions = styledOptions.slice(startIndex, endIndex);
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hint = color.dim('(Move up and down to reveal more choices)');
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}
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return '\n' + scopedOptions.join('\n') + '\n' + hint;
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let _entriesToDisplay = entriesToDisplay(this.cursor, options.length, this.optionsPerPage),
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startIndex = _entriesToDisplay.startIndex,
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endIndex = _entriesToDisplay.endIndex;
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let prefix,
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styledOptions = [];
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for (let i = startIndex; i < endIndex; i++) {
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if (i === startIndex && startIndex > 0) {
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prefix = figures.arrowUp;
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} else if (i === endIndex - 1 && endIndex < options.length) {
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prefix = figures.arrowDown;
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} else {
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prefix = ' ';
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}
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styledOptions.push(this.renderOption(this.cursor, options[i], i, prefix));
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}
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return '\n' + styledOptions.join('\n');
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} // shared with autocomleteMultiselect
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@@ -214,8 +251,7 @@ Instructions:
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renderDoneOrInstructions() {
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if (this.done) {
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const selected = this.value.filter(e => e.selected).map(v => v.title).join(', ');
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return selected;
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return this.value.filter(e => e.selected).map(v => v.title).join(', ');
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}
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const output = [color.gray(this.hint), this.renderInstructions()];
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