1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.text.method; 18 19 import com.android.internal.R; 20 21 import android.app.Dialog; 22 import android.content.Context; 23 import android.os.Bundle; 24 import android.text.*; 25 import android.view.LayoutInflater; 26 import android.view.View.OnClickListener; 27 import android.view.View; 28 import android.view.ViewGroup; 29 import android.view.Window; 30 import android.view.WindowManager; 31 import android.widget.AdapterView.OnItemClickListener; 32 import android.widget.AdapterView; 33 import android.widget.BaseAdapter; 34 import android.widget.Button; 35 import android.widget.GridView; 36 37 /** 38 * Dialog for choosing accented characters related to a base character. 39 */ 40 public class CharacterPickerDialog extends Dialog 41 implements OnItemClickListener, OnClickListener { 42 private View mView; 43 private Editable mText; 44 private String mOptions; 45 private boolean mInsert; 46 private LayoutInflater mInflater; 47 private Button mCancelButton; 48 49 /** 50 * Creates a new CharacterPickerDialog that presents the specified 51 * <code>options</code> for insertion or replacement (depending on 52 * the sense of <code>insert</code>) into <code>text</code>. 53 */ CharacterPickerDialog(Context context, View view, Editable text, String options, boolean insert)54 public CharacterPickerDialog(Context context, View view, 55 Editable text, String options, 56 boolean insert) { 57 super(context, com.android.internal.R.style.Theme_Panel); 58 59 mView = view; 60 mText = text; 61 mOptions = options; 62 mInsert = insert; 63 mInflater = LayoutInflater.from(context); 64 } 65 66 @Override onCreate(Bundle savedInstanceState)67 protected void onCreate(Bundle savedInstanceState) { 68 super.onCreate(savedInstanceState); 69 70 WindowManager.LayoutParams params = getWindow().getAttributes(); 71 params.token = mView.getApplicationWindowToken(); 72 params.type = params.TYPE_APPLICATION_ATTACHED_DIALOG; 73 params.flags = params.flags | Window.FEATURE_NO_TITLE; 74 75 setContentView(R.layout.character_picker); 76 77 GridView grid = (GridView) findViewById(R.id.characterPicker); 78 grid.setAdapter(new OptionsAdapter(getContext())); 79 grid.setOnItemClickListener(this); 80 81 mCancelButton = (Button) findViewById(R.id.cancel); 82 mCancelButton.setOnClickListener(this); 83 } 84 85 /** 86 * Handles clicks on the character buttons. 87 */ onItemClick(AdapterView parent, View view, int position, long id)88 public void onItemClick(AdapterView parent, View view, int position, long id) { 89 String result = String.valueOf(mOptions.charAt(position)); 90 replaceCharacterAndClose(result); 91 } 92 replaceCharacterAndClose(CharSequence replace)93 private void replaceCharacterAndClose(CharSequence replace) { 94 int selEnd = Selection.getSelectionEnd(mText); 95 if (mInsert || selEnd == 0) { 96 mText.insert(selEnd, replace); 97 } else { 98 mText.replace(selEnd - 1, selEnd, replace); 99 } 100 101 dismiss(); 102 } 103 104 /** 105 * Handles clicks on the Cancel button. 106 */ onClick(View v)107 public void onClick(View v) { 108 if (v == mCancelButton) { 109 dismiss(); 110 } else if (v instanceof Button) { 111 CharSequence result = ((Button) v).getText(); 112 replaceCharacterAndClose(result); 113 } 114 } 115 116 private class OptionsAdapter extends BaseAdapter { 117 OptionsAdapter(Context context)118 public OptionsAdapter(Context context) { 119 super(); 120 } 121 getView(int position, View convertView, ViewGroup parent)122 public View getView(int position, View convertView, ViewGroup parent) { 123 Button b = (Button) 124 mInflater.inflate(R.layout.character_picker_button, null); 125 b.setText(String.valueOf(mOptions.charAt(position))); 126 b.setOnClickListener(CharacterPickerDialog.this); 127 return b; 128 } 129 getCount()130 public final int getCount() { 131 return mOptions.length(); 132 } 133 getItem(int position)134 public final Object getItem(int position) { 135 return String.valueOf(mOptions.charAt(position)); 136 } 137 getItemId(int position)138 public final long getItemId(int position) { 139 return position; 140 } 141 } 142 } 143