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Keycode 67 handling
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@downthecrop
downthecrop committed Dec 17, 2023
1 parent 728963b commit 8f16409
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Showing 2 changed files with 54 additions and 99 deletions.
5 changes: 4 additions & 1 deletion ...javlauncher/src/main/java/net/kdt/pojavlaunch/customcontrols/keyboard/TouchCharInput.java
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
*/
public class TouchCharInput extends androidx.appcompat.widget.AppCompatEditText {
public static final String TEXT_FILLER = " ";
public static boolean softKeyboardIsActive = false;
public TouchCharInput(@NonNull Context context) {
this(context, null);
}
Expand All @@ -49,7 +50,7 @@ protected void onTextChanged(CharSequence text, int start, int lengthBefore, int
Log.i("TouchCharInput","New Event (before/after)!: "+ lengthBefore + " : " + lengthAfter);
boolean isBackSpace = (lengthBefore > lengthAfter);
if(isBackSpace) {
KeyEncoder.sendEncodedChar(KeyEncoder.backspaceUnicode,KeyEncoder.backspaceUnicode);
KeyEncoder.sendUnicodeBackspace();
return;
}
char c = text.charAt(text.length()-1);
Expand Down Expand Up @@ -115,6 +116,7 @@ public void clear(){

/** Regain ability to exist, take focus and have some text being input */
public void enable(){
softKeyboardIsActive = true;
setEnabled(true);
setFocusable(true);
setVisibility(VISIBLE);
Expand All @@ -123,6 +125,7 @@ public void enable(){

/** Lose ability to exist, take focus and have some text being input */
public void disable(){
softKeyboardIsActive = false;
clear();
setVisibility(GONE);
clearFocus();
Expand Down
148 changes: 50 additions & 98 deletions app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/utils/KeyEncoder.java
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Original file line number Diff line number Diff line change
@@ -1,110 +1,62 @@
package net.kdt.pojavlaunch.utils;

import net.kdt.pojavlaunch.AWTInputBridge;
import net.kdt.pojavlaunch.customcontrols.keyboard.TouchCharInput;

/*
About Key Events. Because the Android Spec doesn't require
soft keyboards to dispatch key events not all keyboard implementations
across Android will trigger these actions.
import java.util.HashMap;
import java.util.Map;

Currently we use the following function to translate keycodes for
special character, capital letters, and digits.
public class KeyEncoder {

keycode 123 (F12) is used as a single digit capslock button which
when sent to the miniclient before a char will act accordingly.
*/
private static final Map<Character, Character> specialCharMap = createSpecialCharMap();
private static final char MODIFIER = 123; // F12 key as a modifier for caps lock
private static final char BACKSPACE_ANDROID = 67;
private static final char BACKSPACE_UNICODE = 8;

public class KeyEncoder {
// Initialize the mapping of special characters to their respective keys
private static Map<Character, Character> createSpecialCharMap() {
Map<Character, Character> map = new HashMap<>();
map.put('!', '1');
map.put('@', '2');
map.put('#', '3');
map.put('$', '4');
map.put('%', '5');
map.put('^', '6');
map.put('&', '7');
map.put('*', '8');
map.put('(', '9');
map.put(')', '0');
map.put('_', '-');
map.put('+', '=');
map.put('{', '[');
map.put('}', ']');
map.put(':', ';');
map.put('"', '\'');
map.put('<', ',');
map.put('>', '.');
map.put('?', '/');
map.put('|', '\\');
return map;
}

static String specialChars = "/*!@#$%^&*()\"{}_[+:;=-_]'|\\?/<>,.";
static char modifier = 123;
static char backspaceAndroid = 67;
public static char backspaceUnicode = 8;
public static void sendUnicodeBackspace(){
AWTInputBridge.sendKey(BACKSPACE_UNICODE, BACKSPACE_UNICODE);
}

public static void sendEncodedChar(int keyCode, char iC){
System.out.println(keyCode);
if(keyCode == backspaceAndroid){
AWTInputBridge.sendKey(backspaceUnicode,backspaceUnicode);
} else if(specialChars.contains(""+iC)){
// Send special character to client
char c = iC;
switch(c){
case '!':
c = '1';
break;
case '@':
c = '2';
break;
case '#':
c = '3';
break;
case '$':
c = '4';
break;
case '%':
c = '5';
break;
case '^':
c = '6';
break;
case '&':
c = '7';
break;
case '*':
c = '8';
break;
case '(':
c = '9';
break;
case ')':
c = '0';
break;
case '_':
c = '-';
break;
case '+':
c = '=';
break;
case '{':
c = '[';
break;
case '}':
c = ']';
break;
case ':':
c = ';';
break;
case '"':
c = '\'';
break;
case '<':
c = ',';
break;
case '>':
c = '.';
break;
case '?':
c = '/';
break;
case '|':
c = '\\';
break;
}
if(c != iC){
AWTInputBridge.sendKey(modifier,modifier);
}
AWTInputBridge.sendKey(c,c);
} else if(Character.isDigit(iC)){
AWTInputBridge.sendKey(iC,iC);
} else if (iC == Character.toUpperCase(iC)){
// We send F12 as a modifier to avoid needing to worry about shift.
// Client takes this modifier and does a toUpperCase().
AWTInputBridge.sendKey(modifier,modifier);
AWTInputBridge.sendKey(Character.toUpperCase(iC),Character.toUpperCase(iC));
} else if(iC == Character.toLowerCase(iC)){
AWTInputBridge.sendKey(Character.toUpperCase(iC),Character.toUpperCase(iC));
public static void sendEncodedChar(int keyCode, char c) {
if (keyCode == BACKSPACE_ANDROID && !TouchCharInput.softKeyboardIsActive) {
sendUnicodeBackspace();
} else if (specialCharMap.containsKey(c)) {
AWTInputBridge.sendKey(specialCharMap.get(c), specialCharMap.get(c));
} else if (Character.isDigit(c)) {
AWTInputBridge.sendKey(c, c);
} else if (Character.isLowerCase(c)){
AWTInputBridge.sendKey(Character.toUpperCase(c),Character.toUpperCase(c));
} else if (Character.isUpperCase(c)) {
AWTInputBridge.sendKey(MODIFIER, MODIFIER);
AWTInputBridge.sendKey(c, c);
} else {
AWTInputBridge.sendKey(iC,keyCode);
AWTInputBridge.sendKey(c, keyCode);
}
}
}
}

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