package de.pixart.messenger.ui.widget; import android.content.Context; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.support.annotation.Nullable; import android.support.text.emoji.widget.EmojiAppCompatEditText; import android.support.v13.view.inputmethod.EditorInfoCompat; import android.support.v13.view.inputmethod.InputConnectionCompat; import android.support.v13.view.inputmethod.InputContentInfoCompat; import android.text.Editable; import android.text.InputFilter; import android.text.Spanned; import android.util.AttributeSet; import android.view.KeyEvent; import android.view.inputmethod.EditorInfo; import android.view.inputmethod.InputConnection; import de.pixart.messenger.Config; public class EditMessage extends EmojiAppCompatEditText { private static final InputFilter SPAN_FILTER = (source, start, end, dest, dstart, dend) -> source instanceof Spanned ? source.toString() : source; protected Handler mTypingHandler = new Handler(); protected KeyboardListener keyboardListener; private OnCommitContentListener mCommitContentListener = null; private String[] mimeTypes = null; private boolean isUserTyping = false; protected Runnable mTypingTimeout = new Runnable() { @Override public void run() { if (isUserTyping && keyboardListener != null) { keyboardListener.onTypingStopped(); isUserTyping = false; } } }; private boolean lastInputWasTab = false; public EditMessage(Context context, AttributeSet attrs) { super(context, attrs); } public EditMessage(Context context) { super(context); } @Override public boolean onKeyDown(int keyCode, KeyEvent e) { if (keyCode == KeyEvent.KEYCODE_ENTER && !e.isShiftPressed()) { lastInputWasTab = false; if (keyboardListener != null && keyboardListener.onEnterPressed()) { return true; } } else if (keyCode == KeyEvent.KEYCODE_TAB && !e.isAltPressed() && !e.isCtrlPressed()) { if (keyboardListener != null && keyboardListener.onTabPressed(this.lastInputWasTab)) { lastInputWasTab = true; return true; } } else { lastInputWasTab = false; } return super.onKeyDown(keyCode, e); } @Override public void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { super.onTextChanged(text, start, lengthBefore, lengthAfter); lastInputWasTab = false; if (this.mTypingHandler != null && this.keyboardListener != null) { this.mTypingHandler.removeCallbacks(mTypingTimeout); this.mTypingHandler.postDelayed(mTypingTimeout, Config.TYPING_TIMEOUT * 1000); final int length = text.length(); if (!isUserTyping && length > 0) { this.isUserTyping = true; this.keyboardListener.onTypingStarted(); } else if (length == 0) { this.isUserTyping = false; this.keyboardListener.onTextDeleted(); } this.keyboardListener.onTextChanged(); } } public void setKeyboardListener(KeyboardListener listener) { this.keyboardListener = listener; if (listener != null) { this.isUserTyping = false; } } @Override public boolean onTextContextMenuItem(int id) { if (id == android.R.id.paste) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { return super.onTextContextMenuItem(android.R.id.pasteAsPlainText); } else { Editable editable = getEditableText(); InputFilter[] filters = editable.getFilters(); InputFilter[] tempFilters = new InputFilter[filters != null ? filters.length + 1 : 1]; if (filters != null) { System.arraycopy(filters, 0, tempFilters, 1, filters.length); } tempFilters[0] = SPAN_FILTER; editable.setFilters(tempFilters); try { return super.onTextContextMenuItem(id); } finally { editable.setFilters(filters); } } } else { return super.onTextContextMenuItem(id); } } public void setRichContentListener(String[] mimeTypes, OnCommitContentListener listener) { this.mimeTypes = mimeTypes; this.mCommitContentListener = listener; } @Override @Nullable public InputConnection onCreateInputConnection(EditorInfo editorInfo) { final InputConnection ic = super.onCreateInputConnection(editorInfo); if (mimeTypes != null && mCommitContentListener != null) { EditorInfoCompat.setContentMimeTypes(editorInfo, mimeTypes); return InputConnectionCompat.createWrapper(ic, editorInfo, new InputConnectionCompat.OnCommitContentListener() { @Override public boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts) { return EditMessage.this.mCommitContentListener.onCommitContent(inputContentInfo, flags, opts, mimeTypes); } }); } else { return ic; } } public interface OnCommitContentListener { boolean onCommitContent(InputContentInfoCompat inputContentInfo, int flags, Bundle opts, String[] mimeTypes); } public interface KeyboardListener { boolean onEnterPressed(); void onTypingStarted(); void onTypingStopped(); void onTextDeleted(); void onTextChanged(); boolean onTabPressed(boolean repeated); } }