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Code Issues Releases Wiki Activity

Android has an undo manager ...

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M66B 2022-01-04 22:19:16 +01:00
parent 945231a47c
commit c5fa333903
1 changed files with 60 additions and 2 deletions
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62
app/src/main/java/eu/faircode/email/EditTextCompose.java
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@ -33,9 +33,13 @@ import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.style.QuoteSpan;
import android.util.AttributeSet;
import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.widget.TextView;
import androidx.core.view.inputmethod.EditorInfoCompat;
import androidx.core.view.inputmethod.InputConnectionCompat;
@ -43,6 +47,7 @@ import androidx.core.view.inputmethod.InputContentInfoCompat;
import org.jsoup.nodes.Document;
import java.lang.reflect.Method;
import java.util.concurrent.ExecutorService;
public class EditTextCompose extends FixedEditText {
@ -55,17 +60,70 @@ public class EditTextCompose extends FixedEditText {
public EditTextCompose(Context context) {
super(context);
Helper.setKeyboardIncognitoMode(this, context);
init(context);
}
public EditTextCompose(Context context, AttributeSet attrs) {
super(context, attrs);
Helper.setKeyboardIncognitoMode(this, context);
init(context);
}
public EditTextCompose(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context);
}
void init(Context context) {
Helper.setKeyboardIncognitoMode(this, context);
if (BuildConfig.DEBUG &&
Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
setCustomInsertionActionModeCallback(new ActionMode.Callback() {
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
boolean undo = can("Undo");
boolean redo = can("Redo");
if (undo)
menu.add(Menu.CATEGORY_ALTERNATIVE, R.string.title_undo, 1, R.string.title_undo);
if (redo)
menu.add(Menu.CATEGORY_ALTERNATIVE, R.string.title_redo, 2, R.string.title_redo);
return true;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false;
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
if (item.getGroupId() == Menu.CATEGORY_ALTERNATIVE) {
int id = item.getItemId();
if (id == R.string.title_undo)
return EditTextCompose.super.onTextContextMenuItem(android.R.id.undo);
else if (id == R.string.title_redo)
return EditTextCompose.super.onTextContextMenuItem(android.R.id.redo);
}
return false;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
// Do nothing
}
});
}
}
private boolean can(String can) {
try {
Method mCan = TextView.class.getMethod("can" + can);
mCan.setAccessible(true);
return (boolean) mCan.invoke(this);
} catch (ReflectiveOperationException ex) {
Log.i(ex);
return true;
}
}
@Override