1 files changed, 78 insertions, 0 deletions
diff --git a/sandbox/testAppNevena/Front/node_modules/inquirer/lib/utils/paginator.js b/sandbox/testAppNevena/Front/node_modules/inquirer/lib/utils/paginator.js
new file mode 100644
index 00000000..767bf672
--- /dev/null
+++ b/sandbox/testAppNevena/Front/node_modules/inquirer/lib/utils/paginator.js
@@ -0,0 +1,78 @@
+'use strict';
+
+const _ = {
+  sum: require('lodash/sum'),
+  flatten: require('lodash/flatten'),
+};
+const chalk = require('chalk');
+
+/**
+ * The paginator returns a subset of the choices if the list is too long.
+ */
+
+class Paginator {
+  constructor(screen, options = {}) {
+    const { isInfinite = true } = options;
+    this.lastIndex = 0;
+    this.screen = screen;
+    this.isInfinite = isInfinite;
+  }
+
+  paginate(output, active, pageSize) {
+    pageSize = pageSize || 7;
+    let lines = output.split('\n');
+
+    if (this.screen) {
+      lines = this.screen.breakLines(lines);
+      active = _.sum(lines.map((lineParts) => lineParts.length).splice(0, active));
+      lines = _.flatten(lines);
+    }
+
+    // Make sure there's enough lines to paginate
+    if (lines.length <= pageSize) {
+      return output;
+    }
+    const visibleLines = this.isInfinite
+      ? this.getInfiniteLines(lines, active, pageSize)
+      : this.getFiniteLines(lines, active, pageSize);
+    this.lastIndex = active;
+    return (
+      visibleLines.join('\n') +
+      '\n' +
+      chalk.dim('(Move up and down to reveal more choices)')
+    );
+  }
+
+  getInfiniteLines(lines, active, pageSize) {
+    if (this.pointer === undefined) {
+      this.pointer = 0;
+    }
+    const middleOfList = Math.floor(pageSize / 2);
+    // Move the pointer only when the user go down and limit it to the middle of the list
+    if (
+      this.pointer < middleOfList &&
+      this.lastIndex < active &&
+      active - this.lastIndex < pageSize
+    ) {
+      this.pointer = Math.min(middleOfList, this.pointer + active - this.lastIndex);
+    }
+
+    // Duplicate the lines so it give an infinite list look
+    const infinite = _.flatten([lines, lines, lines]);
+    const topIndex = Math.max(0, active + lines.length - this.pointer);
+
+    return infinite.splice(topIndex, pageSize);
+  }
+
+  getFiniteLines(lines, active, pageSize) {
+    let topIndex = active - pageSize / 2;
+    if (topIndex < 0) {
+      topIndex = 0;
+    } else if (topIndex + pageSize > lines.length) {
+      topIndex = lines.length - pageSize;
+    }
+    return lines.splice(topIndex, pageSize);
+  }
+}
+
+module.exports = Paginator;