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375 lines
13 KiB
375 lines
13 KiB
/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.ui;
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import android.app.AlertDialog;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.graphics.Rect;
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import android.text.Editable;
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import android.text.Layout;
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import android.text.Selection;
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import android.text.Spannable;
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import android.text.Spanned;
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import android.text.TextUtils;
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import android.text.TextWatcher;
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import android.text.style.ForegroundColorSpan;
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import android.text.style.URLSpan;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.ContextMenu;
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import android.view.KeyEvent;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.MenuItem.OnMenuItemClickListener;
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import android.view.MotionEvent;
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import android.widget.EditText;
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import net.micode.notes.R;
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import java.util.HashMap;
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import java.util.Map;
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public class NoteEditText extends EditText {
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private static final String TAG = "NoteEditText";
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private int mIndex;
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private int mSelectionStartBeforeDelete;
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public static final int MENU_ITEM_COLOR = Menu.FIRST + 1; // 使用 Menu.FIRST 避免冲突
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private static final String SCHEME_TEL = "tel:" ;
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private static final String SCHEME_HTTP = "http:" ;
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private static final String SCHEME_EMAIL = "mailto:" ;
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private NoteEditActivity noteEditActivity;
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private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
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static {
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sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
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sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web);
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sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email);
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}
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/**
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* Call by the {@link NoteEditActivity} to delete or add edit text
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*/
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public interface OnTextViewChangeListener {
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/**
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* Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
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* and the text is null
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*/
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void onEditTextDelete(int index, String text);
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/**
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* Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
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* happen
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*/
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void onEditTextEnter(int index, String text);
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/**
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* Hide or show item option when text change
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*/
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void onTextChange(int index, boolean hasText);
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}
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private OnTextViewChangeListener mOnTextViewChangeListener;
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public NoteEditText(Context context) {
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super(context, null);
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mIndex = 0;
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if (context instanceof NoteEditActivity) {
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noteEditActivity = (NoteEditActivity) context;
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}
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/*原来它张这个样子
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*/
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//徐家畅的修改
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/*super(context, null, android.R.attr.editTextStyle);
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init();*/
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}/*
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//新增的函数
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private void init() {
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addTextChangedListener(new TextWatcher() {
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) {}
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@Override
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public void afterTextChanged(Editable s) {
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checkSelectionAndShowMenu();
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}
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});
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setOnTouchListener((v, event) -> {
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if (event.getAction() == MotionEvent.ACTION_UP) {
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post(this::checkSelectionAndShowMenu);
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}
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return false; // 让 EditText 处理其他触摸事件
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});
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}
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//徐家畅添加
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//徐家畅继续添加
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private void checkSelectionAndShowMenu() {
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int selStart = getSelectionStart();
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int selEnd = getSelectionEnd();
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if (selStart != selEnd && Math.abs(selEnd - selStart) > 0) {
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showCustomColorPickerDialog(); // 自定义颜色选择器
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}
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}
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private void showCustomColorPickerDialog() {
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final int[] colors = {
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android.graphics.Color.RED,
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android.graphics.Color.BLUE,
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android.graphics.Color.GREEN,
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android.graphics.Color.YELLOW,
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android.graphics.Color.BLACK
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};
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final CharSequence[] colorNames = {"Red", "Blue", "Green", "Yellow", "Black"};
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AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
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builder.setTitle("Select A Color");
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builder.setItems(colorNames, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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int selectedColor = colors[which];
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int start = getSelectionStart();
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int end = getSelectionEnd();
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Spannable spannable = (Spannable) getText();
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// 移除旧的颜色样式
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android.text.style.ForegroundColorSpan[] oldSpans = spannable.getSpans(start, end, android.text.style.ForegroundColorSpan.class);
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for (ForegroundColorSpan span : oldSpans) {
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spannable.removeSpan(span);
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}
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// 设置新颜色
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spannable.setSpan(new android.text.style.ForegroundColorSpan(selectedColor), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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});
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builder.show();
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}
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//徐家畅添加*/
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public void setIndex(int index) {
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mIndex = index;
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}
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public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
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mOnTextViewChangeListener = listener;
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}
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public NoteEditText(Context context, AttributeSet attrs) {
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super(context, attrs, android.R.attr.editTextStyle);
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}
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public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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// TODO Auto-generated constructor stub
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}
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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int x = (int) event.getX();
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int y = (int) event.getY();
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x -= getTotalPaddingLeft();
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y -= getTotalPaddingTop();
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x += getScrollX();
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y += getScrollY();
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Layout layout = getLayout();
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int line = layout.getLineForVertical(y);
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int off = layout.getOffsetForHorizontal(line, x);
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Selection.setSelection(getText(), off);
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break;
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}
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return super.onTouchEvent(event);
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}
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@Override
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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switch (keyCode) {
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case KeyEvent.KEYCODE_ENTER:
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if (mOnTextViewChangeListener != null) {
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return false;
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}
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break;
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case KeyEvent.KEYCODE_DEL:
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mSelectionStartBeforeDelete = getSelectionStart();
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break;
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default:
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break;
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}
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return super.onKeyDown(keyCode, event);
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}
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@Override
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public boolean onKeyUp(int keyCode, KeyEvent event) {
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switch(keyCode) {
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case KeyEvent.KEYCODE_DEL:
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if (mOnTextViewChangeListener != null) {
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if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
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mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
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return true;
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}
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} else {
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Log.d(TAG, "OnTextViewChangeListener was not seted");
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}
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break;
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case KeyEvent.KEYCODE_ENTER:
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if (mOnTextViewChangeListener != null) {
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int selectionStart = getSelectionStart();
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String text = getText().subSequence(selectionStart, length()).toString();
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setText(getText().subSequence(0, selectionStart));
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mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
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} else {
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Log.d(TAG, "OnTextViewChangeListener was not seted");
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}
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break;
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default:
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break;
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}
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return super.onKeyUp(keyCode, event);
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}
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@Override
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protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
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if (mOnTextViewChangeListener != null) {
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if (!focused && TextUtils.isEmpty(getText())) {
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mOnTextViewChangeListener.onTextChange(mIndex, false);
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} else {
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mOnTextViewChangeListener.onTextChange(mIndex, true);
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}
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}
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super.onFocusChanged(focused, direction, previouslyFocusedRect);
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}
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//重写事件菜单
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@Override
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public boolean onTextContextMenuItem(int id) {
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if (id == MENU_ITEM_COLOR) {
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showColorPickerDialog();
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return true;
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}
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return super.onTextContextMenuItem(id);
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}
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//徐家畅添加
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@Override
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protected void onCreateContextMenu(ContextMenu menu) {
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if (getText() instanceof Spanned) {
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Log.d(TAG, "Creating context menu");
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int selStart = getSelectionStart();
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int selEnd = getSelectionEnd();
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// 添加颜色选项
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if(selStart!=selEnd){
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menu.add(Menu.NONE, MENU_ITEM_COLOR, Menu.NONE, "Color")
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.setOnMenuItemClickListener(item -> {
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showColorPickerDialog();
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return true;
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});}
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//这是徐家畅加的
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int min = Math.min(selStart, selEnd);
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int max = Math.max(selStart, selEnd);
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final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
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if (urls.length == 1) {
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int defaultResId = 0;
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for(String schema: sSchemaActionResMap.keySet()) {
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if(urls[0].getURL().indexOf(schema) >= 0) {
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defaultResId = sSchemaActionResMap.get(schema);
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break;
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}
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}
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if (defaultResId == 0) {
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defaultResId = R.string.note_link_other;
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}
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menu.add(0, 0, 1, defaultResId).setOnMenuItemClickListener(
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new OnMenuItemClickListener() {
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public boolean onMenuItemClick(MenuItem item) {
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// goto a new intent
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urls[0].onClick(NoteEditText.this);
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return true;
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}
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});
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}
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}
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super.onCreateContextMenu(menu);
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}
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private void showColorPickerDialog() {
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final int[] colors = {
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android.graphics.Color.RED,
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android.graphics.Color.BLUE,
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android.graphics.Color.GREEN,
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android.graphics.Color.YELLOW,
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android.graphics.Color.BLACK
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};
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final CharSequence[] colorNames = {"Red", "Blue", "Green", "Yellow", "Black"};
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AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
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builder.setTitle("Select A Color");
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builder.setItems(colorNames, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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int selectedColor = colors[which];
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int start = getSelectionStart();
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int end = getSelectionEnd();
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Spannable spannable = (Spannable) getText();
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// 移除旧的前景色样式
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android.text.style.ForegroundColorSpan[] oldSpans = spannable.getSpans(start, end, android.text.style.ForegroundColorSpan.class);
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for (ForegroundColorSpan span : oldSpans) {
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spannable.removeSpan(span);
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}
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// 设置新颜色
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spannable.setSpan(new android.text.style.ForegroundColorSpan(selectedColor), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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});
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builder.show();
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}
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//根据文字选中情况来判断是否隐藏新按钮
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@Override
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protected void onSelectionChanged(int selStart, int selEnd) {
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super.onSelectionChanged(selStart, selEnd);
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if(noteEditActivity!=null){
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if (selStart != selEnd) {
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// 有文字被选中，显示按钮
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noteEditActivity.showTextColorButton();
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} else {
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// 没有文字被选中，隐藏按钮
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noteEditActivity.hideTextColorButton();
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}
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}
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}
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//这也是徐家畅加的
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}
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