/* * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package net.micode.notes.ui; import android.content.Context; import android.graphics.Rect; import android.text.Layout; import android.text.Selection; import android.text.Spanned; import android.text.TextUtils; import android.text.style.URLSpan; import android.util.AttributeSet; import android.util.Log; import android.view.ContextMenu; import android.view.KeyEvent; import android.view.MenuItem; import android.view.MenuItem.OnMenuItemClickListener; import android.view.MotionEvent; import android.widget.EditText; import net.micode.notes.R; import java.util.HashMap; import java.util.Map; /** * @Package: net.micode.notes.ui * @ClassName: NoteEditText * @Description: * @Author: YangYizhe * @CreateDate: 12/21/2023 12:38 AM * @Version: 1.0 */ public class NoteEditText extends EditText { private static final String TAG = "NoteEditText"; private int mIndex; private int mSelectionStartBeforeDelete; private static final String SCHEME_TEL = "tel:" ; private static final String SCHEME_HTTP = "http:" ; private static final String SCHEME_EMAIL = "mailto:" ; private static final Map sSchemaActionResMap = new HashMap(); static { sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web); sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email); } /** * Call by the {@link NoteEditActivity} to delete or add edit text * 该接口用于实现对TextView组件中的文字信息进行修改 */ public interface OnTextViewChangeListener { /** * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens * and the text is null * 当delete键按下时删除当前编辑的文字块 */ void onEditTextDelete(int index, String text); /** * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER} * happen * 当enter键按下时添加一个文字编辑块 */ void onEditTextEnter(int index, String text); /** * Hide or show item option when text change * 当文字发生变化时隐藏或者显示设置 */ void onTextChange(int index, boolean hasText); } //声明文本视图变化监听器 private OnTextViewChangeListener mOnTextViewChangeListener; /** * 构造方法，实例化NoteEditText */ public NoteEditText(Context context) { super(context, null); mIndex = 0; } /** * 设置索引号 */ public void setIndex(int index) { mIndex = index; } /** * 设置文本视图变化监听器 */ public void setOnTextViewChangeListener(OnTextViewChangeListener listener) { mOnTextViewChangeListener = listener; } /** * 构造方法，是由参数集（文本编辑风格）实例化NoteEditText */ public NoteEditText(Context context, AttributeSet attrs) { super(context, attrs, android.R.attr.editTextStyle); } /** * 构造方法，是由参数集（文本编辑风格、定义风格）实例化NoteEditText */ public NoteEditText(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); // TODO Auto-generated constructor stub } @Override /** * @method onTouchEvent * @description 处理触摸事件，根据触摸点的位置设置光标的位置 * @date: 12/24/2023 6:07 PM * @author: YangYizhe * @param [event] * @return boolean */ public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: int x = (int) event.getX(); int y = (int) event.getY(); x -= getTotalPaddingLeft(); y -= getTotalPaddingTop(); x += getScrollX(); y += getScrollY(); Layout layout = getLayout(); int line = layout.getLineForVertical(y); int off = layout.getOffsetForHorizontal(line, x); Selection.setSelection(getText(), off); break; } return super.onTouchEvent(event); } /** * @method onKeyDown * @description 监听键盘按键按下 * @date: 12/21/2023 12:40 AM * @author: YangYizhe * @param keyCode 键盘按键的编码 * @param event 按键事件 * @return boolean */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_ENTER: if (mOnTextViewChangeListener != null) { return false; } break; case KeyEvent.KEYCODE_DEL: mSelectionStartBeforeDelete = getSelectionStart(); break; default: break; } return super.onKeyDown(keyCode, event); } /** * @method onKeyUp * @description 监听按键抬起 * @date: 12/21/2023 12:39 AM * @author: YangYizhe * @param keyCode * @param event */ @Override public boolean onKeyUp(int keyCode, KeyEvent event) { switch(keyCode) { case KeyEvent.KEYCODE_DEL: if (mOnTextViewChangeListener != null) { if (0 == mSelectionStartBeforeDelete && mIndex != 0) { mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString()); return true; } } else { Log.d(TAG, "OnTextViewChangeListener was not seted"); } break; case KeyEvent.KEYCODE_ENTER: if (mOnTextViewChangeListener != null) { int selectionStart = getSelectionStart(); String text = getText().subSequence(selectionStart, length()).toString(); setText(getText().subSequence(0, selectionStart)); mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text); } else { Log.d(TAG, "OnTextViewChangeListener was not seted"); } break; default: break; } return super.onKeyUp(keyCode, event); } /** * @method onFocusChanged * @description 处理当前视图下的焦点改变事件 * @date: 12/21/2023 12:39 AM * @author: YangYizhe * @param focused 代表获得或失去焦点 * @param direction * @param previouslyFocusedRect 上一个访问的焦点区域 */ @Override protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { if (mOnTextViewChangeListener != null) { if (!focused && TextUtils.isEmpty(getText())) { mOnTextViewChangeListener.onTextChange(mIndex, false); } else { mOnTextViewChangeListener.onTextChange(mIndex, true); } } super.onFocusChanged(focused, direction, previouslyFocusedRect); } @Override /** * @method onCreateContextMenu * @description 创建上下文菜单 * @date: 12/24/2023 6:08 PM * @author: YangYizhe * @param [menu] * @return void */ protected void onCreateContextMenu(ContextMenu menu) { if (getText() instanceof Spanned) { int selStart = getSelectionStart(); int selEnd = getSelectionEnd(); int min = Math.min(selStart, selEnd); int max = Math.max(selStart, selEnd); final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class); if (urls.length == 1) { int defaultResId = 0; for(String schema: sSchemaActionResMap.keySet()) { if(urls[0].getURL().indexOf(schema) >= 0) { defaultResId = sSchemaActionResMap.get(schema); break; } } if (defaultResId == 0) { defaultResId = R.string.note_link_other; } menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener( new OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { // goto a new intent urls[0].onClick(NoteEditText.this); return true; } }); } } super.onCreateContextMenu(menu); } }