From ffe8a76c86f1f9752afd4af78d63944a0c1dbb16 Mon Sep 17 00:00:00 2001
From: Will Scullin <scullin@scullinsteel.com>
Date: Thu, 3 Sep 2020 22:39:16 -0700
Subject: [PATCH] Basic copy and paste.

---
 apple2js.html   | 26 --------------------------
 js/canvas.js    | 44 ++++++++++++++++++++++++++++++++++++++++++++
 js/ui/apple2.js | 13 +++++++++++++
 3 files changed, 57 insertions(+), 26 deletions(-)

diff --git a/apple2js.html b/apple2js.html
index c0721dc..b806eee 100644
--- a/apple2js.html
+++ b/apple2js.html
@@ -103,32 +103,6 @@
     <div class="inset">
       <div style="margin: 0 10px">
         <div id="keyboard"></div>
-        <div id="textarea" style="display: none">
-          <button onclick="Apple2.io.keyDown(0x1b)">
-            ESC
-          </button>
-          <button onclick="Apple2.reset()" style="float: right; margin-left: 10px">
-            Reset
-          </button>
-          <button onclick="Apple2.io.keyDown(0x15)" style="float: right">
-            &rarr;
-          </button>
-          <button onclick="Apple2.io.keyDown(0x08)" style="float: right">
-            &larr;
-          </button>
-            <label for="text_input">Text Input</label>
-            <textarea rows="10" style="width: 99%" id="text_input"></textarea>
-          <br />
-          <button onclick="Apple2.io.setKeyBuffer(document.querySelector('#text_input').value)">
-            Send
-          </button>
-          <input type="checkbox" id="buffering" />
-          <label for="buffering">Buffer</label>
-          <button style="float: right"
-                  onclick="document.querySelector('#keyboard').style.display = 'block'; document.querySelector('#textarea').style.display = 'none'">
-            Keyboard
-          </button>
-        </div>
       </div>
     </div>
   </div>
diff --git a/js/canvas.js b/js/canvas.js
index 911620c..b2dc7aa 100644
--- a/js/canvas.js
+++ b/js/canvas.js
@@ -456,6 +456,47 @@ export function LoresPage(page, charset, e, context)
             _buffer[1] = base64_decode(state.buffer[1]);
 
             this.refresh();
+        },
+
+        getText() {
+            function rowToBase(row) {
+                var ab = (row >> 3) & 3;
+                var cd = (row >> 1) & 0x3;
+                var e = row & 1;
+                return (cd << 8) | (e << 7) | (ab <<  5) | (ab << 3);
+            }
+
+            function mapCharCode(charCode) {
+                charCode &= 0x7F;
+                if (charCode < 0x20) {
+                    charCode += 0x40;
+                }
+                if (!e && (charCode >= 0x60)) {
+                    charCode -= 0x40;
+                }
+                return charCode;
+            }
+
+            var buffer = '', line, charCode;
+            var row, col, base;
+            for (row = 0; row < 24; row++) {
+                base = rowToBase(row);
+                line = '';
+                if (e && _80colMode) {
+                    for (col = 0; col < 80; col++) {
+                        charCode = mapCharCode(_buffer[1 - col % 2][base + Math.floor(col / 2)]);
+                        line += String.fromCharCode(charCode);
+                    }
+                } else {
+                    for (col = 0; col < 40; col++) {
+                        charCode = mapCharCode(_buffer[0][base + col]);
+                        line += String.fromCharCode(charCode);
+                    }
+                }
+                line = line.trimRight();
+                buffer +=  line + '\n';
+            }
+            return buffer;
         }
     };
 }
@@ -1107,6 +1148,9 @@ export function VideoModes(gr, hgr, gr2, hgr2, e) {
             _grs[1].mono(on);
             _hgrs[0].mono(on);
             _hgrs[1].mono(on);
+        },
+        getText() {
+            return _grs[pageMode - 1].getText();
         }
     };
 }
diff --git a/js/ui/apple2.js b/js/ui/apple2.js
index 33113a3..ca107b4 100644
--- a/js/ui/apple2.js
+++ b/js/ui/apple2.js
@@ -587,6 +587,7 @@ function processHash(hash) {
     }
 }
 
+
 /*
  * Keyboard/Gamepad routines
  */
@@ -797,6 +798,18 @@ export function initUI(apple2, disk2, cffa, e) {
     }
     window.addEventListener('mousedown', audio.autoStart);
 
+    window.addEventListener('paste', (event) => {
+        var paste = (event.clipboardData || window.clipboardData).getData('text');
+        io.setKeyBuffer(paste);
+        event.preventDefault();
+    });
+
+    window.addEventListener('copy', (event) => {
+        event.clipboardData.setData('text/plain', vm.getText());
+        event.preventDefault();
+    });
+
+
     document.querySelectorAll('canvas').forEach(function(canvas) {
         canvas.addEventListener('mousedown', function(evt) {
             if (!gamepad) {