Changeset 14743 for misc/runpugs/data

Timestamp:

11/14/06 11:47:04 (2 years ago)

Author:

andara

Message:

[runpugs]
-runpugs devel ("runpugs2") now stops backspace at prompt (JS)

Files:

• misc/runpugs/data/runpugs2.html (modified) (5 diffs)

misc/runpugs/data/runpugs2.html

@@ -7 +7 @@
 <link rel="stylesheet" type="text/css" href="/runpugs.css">
 <script language="JavaScript">
+var nchars=0;
+function getnchars() {
+return document.terminal.cmd.value.length
+}
 
+function getcursorpos() {
+        var obj=document.terminal.cmd;
+        if(document.selection) {
+        obj.focus();                    
+                var rng=document.selection.createRange();                       
+        rng.moveStart('character',-nchars);
+                return rng.text.length;
+        } else if(obj.selectionStart>=0) { // FireFox
+        var start = obj.selectionStart;
+        var end   = obj.selectionEnd;
+                if (start<=end) {
+                        return start;
+                } else {
+                        return end;
+           }
+        }
+}
+
+function catchbackspace(myfield,e)
+{
+var keycode;
+if (window.event) {keycode = window.event.keyCode;
+}
+else if (e) {
+keycode = e.which;
+}
+else return true;
+
+if (keycode == 13)
+{
+document.terminal.submit(); 
+return false;
+}
+if (keycode==38) {
+return false;
+}
+if ((keycode==8)||(keycode==37)||(keycode==46)) {
+    if ((getnchars()>nchars) && (getcursorpos() > nchars)) {
+        return true;
+    } else {
+        return false;
+    }
+} else {
+    return true;
+}
+}
+
+//  onkeypress="return catchbackspace(this,event)" onkeydown="return catchbackspace(this,event)"
 function submitenter(myfield,e)
 {
@@ -19 +71 @@
 return false;
 }
-else
+else {
+if (keycode == 8) {
+if (getnchars()>nchars) {
 return true;
+} else {
+return false;
+}
+} else {
+return true;
+}
+}
 }
 
@@ -34 +95 @@
 document.terminal.hist.selectedIndex=0;
 document.terminal.cmd.focus();
+document.terminal.cmd.scrollTop =document.terminal.cmd.scrollHeight; 
 _SKIPT_ */
 }
@@ -82 +144 @@
 _HIST_
 </select>
+<!--onKeyPress="return submitenter(this,event)"-->
 <br>
 <!-- _SKIPT_
-<textarea id="cmd" name="cmd" rows="20" cols="80" wrap="virtual"
-onKeyPress="return submitenter(this,event)">
+<textarea id="cmd" name="cmd" rows="20" cols="80" wrap="virtual" onkeypress="return catchbackspace(this,event)" onkeydown="return catchbackspace(this,event)">
 _ALL_
 </textarea>
@@ -113 +175 @@
 //document.terminal.output.style.height="2ex";
 //}
+nchars=document.terminal.cmd.value.length;
 </script>
 <p>This live web terminal runs the <a href="http://www.pugscode.org">pugs</a> interpreter for <a