From 6ea74c268a12325296a1d2e7fc31b02030ddb8bc Mon Sep 17 00:00:00 2001
From: "(quasar) nebula" <qznebula@protonmail.com>
Date: Fri, 12 May 2023 17:42:09 -0300
Subject: use ESM module syntax & minor cleanups

The biggest change here is moving various element classes under
more scope-specific directories, which helps to avoid circular
dependencies and is just cleaner to navigate and expand in the
future.

Otherwise this is a largely uncritical port to ESM module syntax!
There are probably a number of changes and other cleanups that
remain much needed.

Whenever I make changes to tui-lib it's hard to believe it's
already been <INSERT COUNTING NUMBER HERE> years since the
previous time. First commits are from January 2017, and the
code originates a month earlier in KAaRMNoD!
---
 util/Flushable.js | 126 ------------------------------------------------------
 1 file changed, 126 deletions(-)
 delete mode 100644 util/Flushable.js

(limited to 'util/Flushable.js')

diff --git a/util/Flushable.js b/util/Flushable.js
deleted file mode 100644
index 058d186..0000000
--- a/util/Flushable.js
+++ /dev/null
@@ -1,126 +0,0 @@
-const ansi = require('./ansi')
-const unic = require('./unichars')
-
-module.exports = class Flushable {
-  // A writable that can be used to collect chunks of data before writing
-  // them.
-
-  constructor(writable, shouldCompress = false) {
-    this.target = writable
-
-    // Use the magical ANSI self-made compression method that probably
-    // doesn't *quite* work but should drastically decrease write size?
-    this.shouldCompress = shouldCompress
-
-    // Whether or not to show compression statistics (original written size
-    // and ANSI-interpreted compressed size) in the output of flush.
-    this.shouldShowCompressionStatistics = false
-
-    // Use resizeScreen if you plan on using the ANSI compressor!
-    this.screenLines = 24
-    this.screenCols = 80
-    this.lastFrame = undefined
-
-    this.ended = false
-    this.paused = false
-    this.requestedFlush = false
-
-    this.chunks = []
-  }
-
-  resizeScreen({lines, cols}) {
-    this.screenLines = lines
-    this.screenCols = cols
-    this.clearLastFrame()
-  }
-
-  clearLastFrame() {
-    this.lastFrame = undefined
-  }
-
-  write(what) {
-    this.chunks.push(what)
-  }
-
-  flush() {
-    // If we're paused, we don't want to write, but we will keep a note that a
-    // flush was requested for when we unpause.
-    if (this.paused) {
-      this.requestedFlush = true
-      return
-    }
-
-    // Don't write if we've ended.
-    if (this.ended) {
-      return
-    }
-
-    // End if the target is destroyed.
-    // Yes, this relies on the target having a destroyed property
-    // Don't worry, it'll still work if there is no destroyed property though
-    // (I think)
-    if (this.target.destroyed) {
-      this.end()
-      return
-    }
-
-    let toWrite = this.chunks.join('')
-
-    if (this.shouldCompress) {
-      toWrite = this.compress(toWrite)
-    }
-
-    try {
-      this.target.write(toWrite)
-    } catch(err) {
-      console.error('Flushable write error (ending):', err.message)
-      this.end()
-    }
-
-    this.chunks = []
-  }
-
-  pause() {
-    this.paused = true
-  }
-
-  resume() {
-    this.paused = false
-
-    if (this.requestedFlush) {
-      this.flush()
-    }
-  }
-
-  end() {
-    this.ended = true
-  }
-
-  compress(toWrite) {
-    // TODO: customize screen size
-    const output = ansi.interpret(
-      toWrite, this.screenLines, this.screenCols, this.lastFrame
-    )
-
-    let { screen } = output
-
-    this.lastFrame = output
-
-    if (this.shouldShowCompressionStatistics) {
-      let msg = this.lastInterpretMessage
-      if (screen.length > 0 || !this.lastInterpretMessage) {
-        const pcSaved = Math.round(1000 - (1000 / toWrite.length * screen.length)) / 10
-        const kbSaved = Math.round((toWrite.length - screen.length) / 100) / 10
-        msg = this.lastInterpretMessage = (
-          '(ANSI-interpret: ' +
-          `${toWrite.length} -> ${screen.length} ${pcSaved}% / ${kbSaved} KB saved)`
-        )
-      }
-      screen += '\x1b[H\x1b[0m'
-      screen += msg + unic.BOX_H_DOUBLE.repeat(this.screenCols - msg.length)
-      this.lastFrame.oldLastChar.attributes = []
-    }
-
-    return screen
-  }
-}
-- 
cgit 1.3.0-6-gf8a5