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Replace focused text from Android source

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This commit is contained in:
Misaka
2026-05-15 22:09:31 +08:00
parent d4b7a23e38
commit a6602206c5
6 changed files with 133 additions and 1 deletions
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2
WirelessTextSyncer.Windows/Services/IKeyboardInjectionService.cs
View File

@@ -4,6 +4,8 @@ public interface IKeyboardInjectionService
{
void InsertText(string text);
void ReplaceFocusedText(string text);
void Backspace();
void Enter();

46
WirelessTextSyncer.Windows/Services/KeyboardInjectionService.cs
View File

@@ -7,7 +7,9 @@ public sealed class KeyboardInjectionService : IKeyboardInjectionService
private const uint InputKeyboard = 1;
private const uint KeyEventFKeyUp = 0x0002;
private const uint KeyEventFUnicode = 0x0004;
private const ushort VirtualKeyA = 0x41;
private const ushort VirtualKeyBack = 0x08;
private const ushort VirtualKeyControl = 0x11;
private const ushort VirtualKeyReturn = 0x0D;
public void InsertText(string text)
@@ -24,6 +26,15 @@ public sealed class KeyboardInjectionService : IKeyboardInjectionService
}
}
public void ReplaceFocusedText(string text)
{
AppLogger.Info($"Replacing focused text length: {text.Length}");
SendModifiedKey(VirtualKeyControl, VirtualKeyA);
Backspace();
InsertText(text);
AppLogger.Info("Finished replacing focused text.");
}
public void Backspace()
{
AppLogger.Info("Injecting backspace.");
@@ -52,6 +63,16 @@ public sealed class KeyboardInjectionService : IKeyboardInjectionService
]);
}
private static void SendModifiedKey(ushort modifierKey, ushort key)
{
Send([
CreateVirtualKeyInput(modifierKey, 0),
CreateVirtualKeyInput(key, 0),
CreateVirtualKeyInput(key, KeyEventFKeyUp),
CreateVirtualKeyInput(modifierKey, KeyEventFKeyUp)
]);
}
private static void Send(INPUT[] inputs)
{
var sent = SendInput((uint)inputs.Length, inputs, Marshal.SizeOf<INPUT>());
@@ -108,8 +129,25 @@ public sealed class KeyboardInjectionService : IKeyboardInjectionService
[StructLayout(LayoutKind.Explicit)]
private struct InputUnion
{
[FieldOffset(0)]
public MOUSEINPUT mi;
[FieldOffset(0)]
public KEYBDINPUT ki;
[FieldOffset(0)]
public HARDWAREINPUT hi;
}
[StructLayout(LayoutKind.Sequential)]
private struct MOUSEINPUT
{
public int dx;
public int dy;
public uint mouseData;
public uint dwFlags;
public uint time;
public UIntPtr dwExtraInfo;
}
[StructLayout(LayoutKind.Sequential)]
@@ -121,4 +159,12 @@ public sealed class KeyboardInjectionService : IKeyboardInjectionService
public uint time;
public UIntPtr dwExtraInfo;
}
[StructLayout(LayoutKind.Sequential)]
private struct HARDWAREINPUT
{
public uint uMsg;
public ushort wParamL;
public ushort wParamH;
}
}

28
WirelessTextSyncer.Windows/Services/SyncMessageHandler.cs
View File

@@ -5,6 +5,7 @@ namespace WirelessTextSyncer.Windows.Services;
public sealed class SyncMessageHandler
{
private readonly IKeyboardInjectionService keyboard;
private string remoteText = string.Empty;
public SyncMessageHandler(IKeyboardInjectionService keyboard)
{
@@ -16,13 +17,24 @@ public sealed class SyncMessageHandler
switch (message.Action)
{
case SyncAction.InsertText:
keyboard.InsertText(message.Text ?? string.Empty);
var insertedText = message.Text ?? string.Empty;
keyboard.InsertText(insertedText);
remoteText += insertedText;
break;
case SyncAction.ReplaceAll:
ReplaceAll(message.Text ?? string.Empty);
break;
case SyncAction.Backspace:
keyboard.Backspace();
if (remoteText.Length > 0)
{
remoteText = remoteText[..^1];
}
break;
case SyncAction.Enter:
keyboard.Enter();
remoteText += Environment.NewLine;
break;
case SyncAction.Ping:
break;
@@ -30,4 +42,18 @@ public sealed class SyncMessageHandler
throw new InvalidOperationException($"Unsupported sync action: {message.Action}");
}
}
private void ReplaceAll(string newText)
{
if (newText == remoteText)
{
return;
}
AppLogger.Info(
$"Hard replacing focused text. Old mirrored length: {remoteText.Length}, new length: {newText.Length}");
keyboard.ReplaceFocusedText(newText);
remoteText = newText;
}
}