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359 lines
12 KiB
Java
359 lines
12 KiB
Java
// Copyright © SixtyFPS GmbH <info@slint.dev>
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// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.1 OR LicenseRef-Slint-commercial
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputConnection;
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import android.content.Context;
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import android.content.res.Configuration;
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import android.graphics.BlendMode;
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import android.graphics.BlendModeColorFilter;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.text.Editable;
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import android.text.Selection;
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import android.text.SpannableStringBuilder;
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import android.view.inputmethod.InputMethodManager;
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import android.app.Activity;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import android.widget.PopupWindow;
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import android.view.inputmethod.BaseInputConnection;
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class InputHandle extends ImageView {
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private PopupWindow mPopupWindow;
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private float mPressedX;
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private float mPressedY;
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private SlintInputView mRootView;
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private int cursorX;
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private int cursorY;
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private int attr;
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public InputHandle(SlintInputView rootView, int attr) {
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super(rootView.getContext());
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this.attr = attr;
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mRootView = rootView;
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Context ctx = rootView.getContext();
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mPopupWindow = new PopupWindow(ctx, null, android.R.attr.textSelectHandleWindowStyle);
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mPopupWindow.setSplitTouchEnabled(true);
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mPopupWindow.setClippingEnabled(false);
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int[] attrs = { attr };
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Drawable drawable = ctx.getTheme().obtainStyledAttributes(attrs).getDrawable(0);
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mPopupWindow.setWidth(drawable.getIntrinsicWidth());
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mPopupWindow.setHeight(drawable.getIntrinsicHeight());
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this.setImageDrawable(drawable);
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mPopupWindow.setContentView(this);
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}
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@Override
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public boolean onTouchEvent(MotionEvent ev) {
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switch (ev.getActionMasked()) {
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case MotionEvent.ACTION_DOWN: {
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mPressedX = ev.getRawX() - cursorX;
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mPressedY = ev.getRawY() - cursorY;
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break;
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}
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case MotionEvent.ACTION_MOVE: {
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int id = attr == android.R.attr.textSelectHandleLeft ? 1
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: attr == android.R.attr.textSelectHandleRight ? 2 : 0;
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SlintAndroidJavaHelper.moveCursorHandle(id, Math.round(ev.getRawX() - mPressedX),
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Math.round(ev.getRawY() - mPressedY));
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break;
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}
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case MotionEvent.ACTION_UP:
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case MotionEvent.ACTION_CANCEL:
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break;
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}
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return true;
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}
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public void setPosition(int x, int y) {
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cursorX = x;
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cursorY = y;
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y += mPopupWindow.getHeight();
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if (attr == android.R.attr.textSelectHandleLeft) {
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x -= 3 * mPopupWindow.getWidth() / 4;
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} else if (attr == android.R.attr.textSelectHandleRight) {
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x -= mPopupWindow.getWidth() / 4;
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} else {
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x -= mPopupWindow.getWidth() / 2;
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}
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mPopupWindow.showAtLocation(mRootView, 0, x, y);
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mPopupWindow.update(x, y, -1, -1);
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}
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public void hide() {
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mPopupWindow.dismiss();
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}
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public void setHandleColor(int color) {
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Drawable drawable = getDrawable();
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if (drawable != null) {
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drawable.setColorFilter(new BlendModeColorFilter(color, BlendMode.SRC_IN));
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setImageDrawable(drawable);
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}
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}
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}
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class SlintInputView extends View {
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private String mText = "";
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private int mCursorPosition = 0;
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private int mAnchorPosition = 0;
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private int mPreeditStart = 0;
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private int mPreeditEnd = 0;
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private int mInputType = EditorInfo.TYPE_CLASS_TEXT;
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private int mInBatch = 0;
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private boolean mPending = false;
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private SlintEditable mEditable;
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public class SlintEditable extends SpannableStringBuilder {
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public SlintEditable() {
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super(mText);
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}
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@Override
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public SpannableStringBuilder replace(int start, int end, CharSequence tb, int tbstart, int tbend) {
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super.replace(start, end, tb, tbstart, tbend);
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setCursorPos(0, 0, 0, 0, 0);
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if (mInBatch == 0) {
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update();
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} else {
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mPending = true;
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}
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return this;
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}
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public void update() {
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mPending = false;
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mText = toString();
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mCursorPosition = Selection.getSelectionStart(this);
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mAnchorPosition = Selection.getSelectionEnd(this);
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mPreeditStart = BaseInputConnection.getComposingSpanStart(this);
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mPreeditEnd = BaseInputConnection.getComposingSpanEnd(this);
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SlintAndroidJavaHelper.updateText(mText, mCursorPosition, mAnchorPosition, mPreeditStart, mPreeditEnd);
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}
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}
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public SlintInputView(Context context) {
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super(context);
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setFocusable(true);
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setFocusableInTouchMode(true);
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mEditable = new SlintEditable();
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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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outAttrs.inputType = mInputType;
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outAttrs.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI;
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outAttrs.initialSelStart = mCursorPosition;
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outAttrs.initialSelEnd = mAnchorPosition;
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return new BaseInputConnection(this, true) {
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@Override
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public Editable getEditable() {
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return mEditable;
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}
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@Override
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public boolean beginBatchEdit() {
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mInBatch += 1;
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return super.beginBatchEdit();
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}
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@Override
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public boolean endBatchEdit() {
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mInBatch -= 1;
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if (mInBatch == 0 && mPending) {
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mEditable.update();
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}
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return super.endBatchEdit();
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}
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};
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}
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public void setText(String text, int cursorPosition, int anchorPosition, int preeditStart, int preeditEnd,
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int inputType) {
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boolean restart = mInputType != inputType || !mText.equals(text) || mCursorPosition != cursorPosition
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|| mAnchorPosition != anchorPosition;
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mText = text;
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mCursorPosition = cursorPosition;
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mAnchorPosition = anchorPosition;
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mPreeditStart = preeditStart;
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mPreeditEnd = preeditEnd;
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mInputType = inputType;
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if (restart) {
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mEditable = new SlintEditable();
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Selection.setSelection(mEditable, cursorPosition, anchorPosition);
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InputMethodManager imm = (InputMethodManager) this.getContext()
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.getSystemService(Context.INPUT_METHOD_SERVICE);
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imm.restartInput(this);
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}
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}
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@Override
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protected void onConfigurationChanged(Configuration newConfig) {
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super.onConfigurationChanged(newConfig);
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int currentNightMode = newConfig.uiMode & Configuration.UI_MODE_NIGHT_MASK;
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switch (currentNightMode) {
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case Configuration.UI_MODE_NIGHT_NO:
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SlintAndroidJavaHelper.setDarkMode(false);
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break;
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case Configuration.UI_MODE_NIGHT_YES:
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SlintAndroidJavaHelper.setDarkMode(true);
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break;
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}
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}
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private InputHandle mCursorHandle;
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private InputHandle mLeftHandle;
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private InputHandle mRightHandle;
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// num_handles: 0=hidden, 1=cursor handle, 2=selection handles
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public void setCursorPos(int left_x, int left_y, int right_x, int right_y, int num_handles) {
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if (num_handles == 1) {
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if (mLeftHandle != null) {
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mLeftHandle.hide();
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}
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if (mRightHandle != null) {
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mRightHandle.hide();
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}
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if (mCursorHandle == null) {
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mCursorHandle = new InputHandle(this, android.R.attr.textSelectHandle);
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}
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mCursorHandle.setPosition(left_x, left_y);
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} else if (num_handles == 2) {
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if (mLeftHandle == null) {
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mLeftHandle = new InputHandle(this, android.R.attr.textSelectHandleLeft);
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}
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if (mRightHandle == null) {
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mRightHandle = new InputHandle(this, android.R.attr.textSelectHandleRight);
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}
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if (mCursorHandle != null) {
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mCursorHandle.hide();
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}
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mLeftHandle.setPosition(right_x, right_y);
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mRightHandle.setPosition(left_x, left_y);
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} else {
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if (mCursorHandle != null) {
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mCursorHandle.hide();
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}
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if (mLeftHandle != null) {
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mLeftHandle.hide();
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}
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if (mRightHandle != null) {
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mRightHandle.hide();
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}
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}
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}
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public void setHandleColor(int color) {
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if (mCursorHandle != null) {
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mCursorHandle.setHandleColor(color);
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}
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if (mLeftHandle != null) {
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mLeftHandle.setHandleColor(color);
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}
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if (mRightHandle != null) {
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mRightHandle.setHandleColor(color);
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}
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}
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}
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public class SlintAndroidJavaHelper {
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Activity mActivity;
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SlintInputView mInputView;
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public SlintAndroidJavaHelper(Activity activity) {
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this.mActivity = activity;
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this.mInputView = new SlintInputView(activity);
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this.mActivity.runOnUiThread(new Runnable() {
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@Override
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public void run() {
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FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(10, 10);
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mActivity.addContentView(mInputView, params);
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mInputView.setVisibility(View.VISIBLE);
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}
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});
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}
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public void show_keyboard() {
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mActivity.runOnUiThread(new Runnable() {
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@Override
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public void run() {
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mInputView.requestFocus();
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InputMethodManager imm = (InputMethodManager) mActivity.getSystemService(Context.INPUT_METHOD_SERVICE);
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imm.showSoftInput(mInputView, 0);
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}
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});
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}
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public void hide_keyboard() {
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mActivity.runOnUiThread(new Runnable() {
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@Override
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public void run() {
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InputMethodManager imm = (InputMethodManager) mActivity.getSystemService(Context.INPUT_METHOD_SERVICE);
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imm.hideSoftInputFromWindow(mInputView.getWindowToken(), 0);
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}
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});
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}
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static public native void updateText(String text, int cursorPosition, int anchorPosition, int preeditStart,
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int preeditOffset);
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static public native void setDarkMode(boolean dark);
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static public native void moveCursorHandle(int id, int pos_x, int pos_y);
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public void set_imm_data(String text, int cursor_position, int anchor_position, int preedit_start, int preedit_end,
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int cur_x, int cur_y, int anchor_x, int anchor_y, int input_type, boolean show_cursor_handles) {
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mActivity.runOnUiThread(new Runnable() {
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@Override
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public void run() {
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int selStart = Math.min(cursor_position, anchor_position);
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int selEnd = Math.max(cursor_position, anchor_position);
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mInputView.setText(text, selStart, selEnd, preedit_start, preedit_end, input_type);
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int num_handles = 0;
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if (show_cursor_handles) {
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num_handles = cursor_position == anchor_position ? 1 : 2;
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}
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if (cursor_position < anchor_position) {
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mInputView.setCursorPos(anchor_x, anchor_y, cur_x, cur_y, num_handles);
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} else {
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mInputView.setCursorPos(cur_x, cur_y, anchor_x, anchor_y, num_handles);
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}
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}
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});
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}
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public void set_handle_color(int color) {
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mActivity.runOnUiThread(new Runnable() {
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@Override
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public void run() {
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mInputView.setHandleColor(color);
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}
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});
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}
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public boolean dark_color_scheme() {
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int nightModeFlags = mActivity.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
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return nightModeFlags == Configuration.UI_MODE_NIGHT_YES;
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}
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// Get the geometry of the view minus the system bars and the keyboard
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public Rect get_view_rect() {
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Rect rect = new Rect();
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mActivity.getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);
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return rect;
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}
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}
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