Preparing to create a new InputConnection for text input on android
This commit is contained in:
Yousef Khadadeh
parent
8f21dd0a88
commit
1585e0aa67
10 changed files with 585 additions and 17 deletions
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@ -3,11 +3,17 @@ package com.erroratline0.infinipaint;
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import android.content.Context;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Handler;
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import android.util.Log;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.Window;
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import android.view.WindowManager;
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import android.view.inputmethod.InputMethodManager;
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import android.widget.RelativeLayout;
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import org.libsdl.app.SDLActivity;
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import org.libsdl.app.SDLDummyEdit;
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import org.libsdl.app.SDLSurface;
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/**
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@ -15,6 +21,7 @@ import org.libsdl.app.SDLSurface;
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*/
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public class InfiniPaint extends SDLActivity {
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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Window window = this.getWindow();
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@ -31,4 +38,34 @@ public class InfiniPaint extends SDLActivity {
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protected SDLSurface createSDLSurface(Context context) {
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return new InfiniPaintSurface(context);
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}
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static class StartInfiniPaintTextInputTask implements Runnable {
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public StartInfiniPaintTextInputTask() {}
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@Override
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public void run() {
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RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(1, 1);
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if (mTextEdit == null) {
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mTextEdit = new InfiniPaintTextBoxView(getContext());
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mLayout.addView(mTextEdit, params);
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}
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else
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mTextEdit.setLayoutParams(params);
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mTextEdit.setVisibility(View.VISIBLE);
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mTextEdit.requestFocus();
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InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
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imm.showSoftInput(mTextEdit, 0);
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if (imm.isAcceptingText())
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onNativeScreenKeyboardShown();
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}
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}
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static public void startTextInput() {
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mSingleton.commandHandler.post(new StartInfiniPaintTextInputTask());
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}
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static InfiniPaintTextBoxView mTextEdit;
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}
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@ -0,0 +1,330 @@
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package com.erroratline0.infinipaint;
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import static android.text.TextUtils.CAP_MODE_SENTENCES;
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import android.content.*;
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import android.graphics.RectF;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.CancellationSignal;
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import android.os.Handler;
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import android.text.Editable;
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import android.view.*;
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import android.view.inputmethod.BaseInputConnection;
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import android.view.inputmethod.CompletionInfo;
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import android.view.inputmethod.CorrectionInfo;
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import android.view.inputmethod.ExtractedText;
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import android.view.inputmethod.ExtractedTextRequest;
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import android.view.inputmethod.HandwritingGesture;
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import android.view.inputmethod.InputConnection;
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import android.view.inputmethod.InputContentInfo;
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import android.view.inputmethod.PreviewableHandwritingGesture;
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import android.view.inputmethod.SurroundingText;
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import android.view.inputmethod.TextAttribute;
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import android.view.inputmethod.TextBoundsInfoResult;
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import android.view.inputmethod.TextSnapshot;
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import java.util.concurrent.Executor;
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import java.util.function.Consumer;
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import java.util.function.IntConsumer;
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import android.content.*;
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import android.os.Build;
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import android.text.Editable;
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import android.view.*;
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import android.view.inputmethod.BaseInputConnection;
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import android.widget.EditText;
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import org.libsdl.app.SDL;
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import org.libsdl.app.SDLActivity;
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class InfiniPaintTextBoxInputConnection extends BaseInputConnection
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{
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protected EditText mEditText;
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protected String mCommittedText = "";
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InfiniPaintTextBoxInputConnection(View targetView, boolean fullEditor) {
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super(targetView, fullEditor);
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mEditText = new EditText(SDL.getContext());
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}
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@Override
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public Editable getEditable() {
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return mEditText.getEditableText();
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}
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@Override
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public boolean sendKeyEvent(KeyEvent event) {
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/*
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* This used to handle the keycodes from soft keyboard (and IME-translated input from hardkeyboard)
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* However, as of Ice Cream Sandwich and later, almost all soft keyboard doesn't generate key presses
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* and so we need to generate them ourselves in commitText. To avoid duplicates on the handful of keys
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* that still do, we empty this out.
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*/
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/*
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* Return DOES still generate a key event, however. So rather than using it as the 'click a button' key
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* as we do with physical keyboards, let's just use it to hide the keyboard.
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*/
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if (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
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if (SDLActivity.onNativeSoftReturnKey()) {
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return true;
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}
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}
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return super.sendKeyEvent(event);
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}
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@Override
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public boolean commitText(CharSequence text, int newCursorPosition) {
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if (!super.commitText(text, newCursorPosition)) {
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return false;
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}
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updateText();
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return true;
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}
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@Override
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public boolean setComposingText(CharSequence text, int newCursorPosition) {
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if (!super.setComposingText(text, newCursorPosition)) {
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return false;
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}
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updateText();
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return true;
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}
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@Override
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public boolean deleteSurroundingText(int beforeLength, int afterLength) {
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// Workaround to capture backspace key. Ref: http://stackoverflow.com/questions>/14560344/android-backspace-in-webview-baseinputconnection
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// and https://bugzilla.libsdl.org/show_bug.cgi?id=2265
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if (beforeLength > 0 && afterLength == 0) {
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// backspace(s)
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while (beforeLength-- > 0) {
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}
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return true;
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}
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if (!super.deleteSurroundingText(beforeLength, afterLength)) {
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return false;
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}
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updateText();
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return true;
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}
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protected void updateText() {
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final Editable content = getEditable();
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if (content == null) {
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return;
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}
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String text = content.toString();
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int compareLength = Math.min(text.length(), mCommittedText.length());
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int matchLength, offset;
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/* Backspace over characters that are no longer in the string */
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for (matchLength = 0; matchLength < compareLength; ) {
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int codePoint = mCommittedText.codePointAt(matchLength);
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if (codePoint != text.codePointAt(matchLength)) {
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break;
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}
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matchLength += Character.charCount(codePoint);
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}
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/* FIXME: This doesn't handle graphemes, like '🌬️' */
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for (offset = matchLength; offset < mCommittedText.length(); ) {
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int codePoint = mCommittedText.codePointAt(offset);
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offset += Character.charCount(codePoint);
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}
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if (matchLength < text.length()) {
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String pendingText = text.subSequence(matchLength, text.length()).toString();
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if (!SDLActivity.dispatchingKeyEvent()) {
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for (offset = 0; offset < pendingText.length(); ) {
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int codePoint = pendingText.codePointAt(offset);
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if (codePoint == '\n') {
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if (SDLActivity.onNativeSoftReturnKey()) {
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return;
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}
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}
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/* Higher code points don't generate simulated scancodes */
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if (codePoint > 0 && codePoint < 128) {
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}
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offset += Character.charCount(codePoint);
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}
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}
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}
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mCommittedText = text;
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}
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}
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//class InfiniPaintTextBoxInputConnection extends BaseInputConnection {
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// InfiniPaintTextBoxInputConnection(View targetView, boolean fullEditor) {
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// super(targetView, fullEditor);
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// }
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//
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// public native void nativeBeginBatchEdit();
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// public native void nativeClearMetaKeyStates(int states);
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// public native void nativeSetComposingText(CharSequence text, int newCursorPosition);
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// public native void nativeSetComposingRegion(int start, int end);
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// public native void nativeSetSelection(int start, int end);
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// public native void nativeCommitCorrection(int offset, CharSequence oldText, CharSequence newText);
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// public native void nativeCommitText(CharSequence text, int newCursorPosition);
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// public native void nativeDeleteSurroundingText(int beforeLength, int afterLength);
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// public native void nativeDeleteSurroundingTextInCodePoints(int beforeLength, int afterLength);
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// public native void nativeEndBatchEdit();
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// public native void nativeFinishComposingText();
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// public native CharSequence nativeGetSelectedText();
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// public native CharSequence nativeGetTextAfterCursor(int n);
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// public native CharSequence nativeGetTextBeforeCursor(int n);
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// public native void nativePerformContextMenuAction(int action);
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// public native void nativePerformEditorAction(int action);
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//
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// @Override
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// public boolean beginBatchEdit() {
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// nativeBeginBatchEdit();
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// return true;
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// }
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//
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// @Override
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// public boolean clearMetaKeyStates(int states) {
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// nativeClearMetaKeyStates(states);
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// return true;
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// }
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//
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// @Override
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// public boolean performSpellCheck() {
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// return true;
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// }
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//
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// @Override
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// public TextSnapshot takeSnapshot() {
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// return null;
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// }
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//
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// @Override
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// public CharSequence getTextBeforeCursor(int n, int flags) {
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// return nativeGetTextBeforeCursor(n);
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// }
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//
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// @Override
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// public CharSequence getTextAfterCursor(int n, int flags) {
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// return nativeGetTextAfterCursor(n);
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// }
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//
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// @Override
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// public CharSequence getSelectedText(int i) {
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// return nativeGetSelectedText();
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// }
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//
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// @Override
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// public int getCursorCapsMode(int i) {
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// return CAP_MODE_SENTENCES;
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// }
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//
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// @Override
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// public ExtractedText getExtractedText(ExtractedTextRequest extractedTextRequest, int i) {
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// return null;
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// }
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//
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// @Override
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// public boolean deleteSurroundingText(int i, int i1) {
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// nativeDeleteSurroundingText(i, i1);
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// return true;
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// }
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//
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// @Override
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// public boolean deleteSurroundingTextInCodePoints(int beforeLength, int afterLength) {
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// nativeDeleteSurroundingTextInCodePoints(beforeLength, afterLength);
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// return true;
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// }
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//
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// @Override
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// public boolean setComposingRegion(int i, int i1) {
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// nativeSetComposingRegion(i, i1);
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// return true;
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// }
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//
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// @Override
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// public boolean finishComposingText() {
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// nativeFinishComposingText();
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// return true;
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// }
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//
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// @Override
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// public boolean commitCompletion(CompletionInfo completionInfo) {
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// return true;
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// }
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//
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// @Override
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// public boolean commitCorrection(CorrectionInfo correctionInfo) {
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// nativeCommitCorrection(correctionInfo.getOffset(), correctionInfo.getOldText(), correctionInfo.getNewText());
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// return true;
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// }
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//
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// @Override
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// public boolean setSelection(int i, int i1) {
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// nativeSetSelection(i, i1);
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// return true;
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// }
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//
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// @Override
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// public boolean performEditorAction(int i) {
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// nativePerformEditorAction(i);
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// return true;
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// }
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//
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// @Override
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// public boolean performContextMenuAction(int i) {
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// nativePerformContextMenuAction(i);
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// return true;
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// }
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//
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// @Override
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// public boolean endBatchEdit() {
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// nativeEndBatchEdit();
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// return true;
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// }
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//
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// @Override
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// public boolean sendKeyEvent(KeyEvent keyEvent) {
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// return true;
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// }
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//
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// @Override
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// public boolean reportFullscreenMode(boolean b) {
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// return true;
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// }
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//
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// @Override
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// public boolean performPrivateCommand(String s, Bundle bundle) {
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// return false;
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// }
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//
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// @Override
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// public boolean requestCursorUpdates(int i) {
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// return true;
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// }
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//
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// @Override
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// public Handler getHandler() {
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// return null;
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// }
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//
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// @Override
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// public boolean commitContent(InputContentInfo inputContentInfo, int i, Bundle bundle) {
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// return true;
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// }
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//
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// @Override
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// public boolean commitText(CharSequence text, int newCursorPosition) {
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// nativeCommitText(text, newCursorPosition);
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// return true;
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// }
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//
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// @Override
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// public boolean setComposingText(CharSequence text, int newCursorPosition) {
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// nativeSetComposingText(text, newCursorPosition);
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// return true;
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// }
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//}
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@ -0,0 +1,36 @@
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package com.erroratline0.infinipaint;
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import android.content.*;
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import android.text.InputType;
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import android.view.*;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputConnection;
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public class InfiniPaintTextBoxView extends View
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{
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InputConnection ic;
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InfiniPaintTextBoxView(Context context) {
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super(context);
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setFocusableInTouchMode(true);
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setFocusable(true);
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}
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@Override
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public boolean onCheckIsTextEditor() {
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return true;
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}
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@Override
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public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
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ic = new InfiniPaintTextBoxInputConnection(this, true);
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outAttrs.inputType = InputType.TYPE_CLASS_TEXT;
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outAttrs.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI |
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EditorInfo.IME_FLAG_NO_FULLSCREEN /* API 11 */ |
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EditorInfo.IME_ACTION_DONE;
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return ic;
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}
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}
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@ -980,7 +980,7 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
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}
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// Handler for the messages
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Handler commandHandler = new SDLCommandHandler();
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public Handler commandHandler = new SDLCommandHandler();
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// Send a message from the SDLMain thread
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protected boolean sendCommand(int command, Object data) {
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