1 /* 2 * Copyright (C) 2013 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 com.android.documentsui; 18 19 import android.app.Fragment; 20 import android.app.FragmentManager; 21 import android.app.FragmentTransaction; 22 import android.content.Context; 23 import android.os.Bundle; 24 import android.text.Editable; 25 import android.text.TextUtils; 26 import android.text.TextWatcher; 27 import android.view.KeyEvent; 28 import android.view.LayoutInflater; 29 import android.view.View; 30 import android.view.ViewGroup; 31 import android.widget.Button; 32 import android.widget.EditText; 33 import android.widget.ImageView; 34 import android.widget.ProgressBar; 35 36 import com.android.documentsui.model.DocumentInfo; 37 38 /** 39 * Display document title editor and save button. 40 */ 41 public class SaveFragment extends Fragment { 42 public static final String TAG = "SaveFragment"; 43 44 private DocumentInfo mReplaceTarget; 45 private EditText mDisplayName; 46 private Button mSave; 47 private ProgressBar mProgress; 48 private boolean mIgnoreNextEdit; 49 50 private static final String EXTRA_MIME_TYPE = "mime_type"; 51 private static final String EXTRA_DISPLAY_NAME = "display_name"; 52 53 public static void show(FragmentManager fm, String mimeType, String displayName) { 54 final Bundle args = new Bundle(); 55 args.putString(EXTRA_MIME_TYPE, mimeType); 56 args.putString(EXTRA_DISPLAY_NAME, displayName); 57 58 final SaveFragment fragment = new SaveFragment(); 59 fragment.setArguments(args); 60 61 final FragmentTransaction ft = fm.beginTransaction(); 62 ft.replace(R.id.container_save, fragment, TAG); 63 ft.commitAllowingStateLoss(); 64 } 65 66 public static SaveFragment get(FragmentManager fm) { 67 return (SaveFragment) fm.findFragmentByTag(TAG); 68 } 69 70 @Override 71 public View onCreateView( 72 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 73 final Context context = inflater.getContext(); 74 75 final View view = inflater.inflate(R.layout.fragment_save, container, false); 76 77 final ImageView icon = (ImageView) view.findViewById(android.R.id.icon); 78 icon.setImageDrawable( 79 IconUtils.loadMimeIcon(context, getArguments().getString(EXTRA_MIME_TYPE))); 80 81 mDisplayName = (EditText) view.findViewById(android.R.id.title); 82 mDisplayName.addTextChangedListener(mDisplayNameWatcher); 83 mDisplayName.setText(getArguments().getString(EXTRA_DISPLAY_NAME)); 84 mDisplayName.setOnKeyListener( 85 new View.OnKeyListener() { 86 @Override 87 public boolean onKey(View v, int keyCode, KeyEvent event) { 88 // Only handle key-down events. This is simpler, consistent with most other 89 // UIs, and enables the handling of repeated key events from holding down a 90 // key. 91 if (event.getAction() != KeyEvent.ACTION_DOWN) { 92 return false; 93 } 94 95 // Returning false in this method will bubble the event up to 96 // {@link BaseActivity#onKeyDown}. In order to prevent backspace popping 97 // documents once the textView is empty, we are going to trap it here. 98 if (keyCode == KeyEvent.KEYCODE_DEL 99 && TextUtils.isEmpty(mDisplayName.getText())) { 100 return true; 101 } 102 103 if (keyCode == KeyEvent.KEYCODE_ENTER && mSave.isEnabled()) { 104 performSave(); 105 return true; 106 } 107 return false; 108 } 109 }); 110 111 mSave = (Button) view.findViewById(android.R.id.button1); 112 mSave.setOnClickListener(mSaveListener); 113 mSave.setEnabled(false); 114 115 mProgress = (ProgressBar) view.findViewById(android.R.id.progress); 116 117 return view; 118 } 119 120 private TextWatcher mDisplayNameWatcher = new TextWatcher() { 121 @Override 122 public void onTextChanged(CharSequence s, int start, int before, int count) { 123 if (mIgnoreNextEdit) { 124 mIgnoreNextEdit = false; 125 } else { 126 mReplaceTarget = null; 127 } 128 } 129 130 @Override 131 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 132 // ignored 133 } 134 135 @Override 136 public void afterTextChanged(Editable s) { 137 // ignored 138 } 139 }; 140 141 private View.OnClickListener mSaveListener = new View.OnClickListener() { 142 @Override 143 public void onClick(View v) { 144 performSave(); 145 } 146 147 }; 148 149 private void performSave() { 150 final DocumentsActivity activity = DocumentsActivity.get(SaveFragment.this); 151 if (mReplaceTarget != null) { 152 activity.onSaveRequested(mReplaceTarget); 153 } else { 154 final String mimeType = getArguments().getString(EXTRA_MIME_TYPE); 155 final String displayName = mDisplayName.getText().toString(); 156 activity.onSaveRequested(mimeType, displayName); 157 } 158 } 159 160 /** 161 * Set given document as target for in-place writing if user hits save 162 * without changing the filename. Can be set to {@code null} if user 163 * navigates outside the target directory. 164 */ 165 public void setReplaceTarget(DocumentInfo replaceTarget) { 166 mReplaceTarget = replaceTarget; 167 168 if (mReplaceTarget != null) { 169 getArguments().putString(EXTRA_DISPLAY_NAME, replaceTarget.displayName); 170 mIgnoreNextEdit = true; 171 mDisplayName.setText(replaceTarget.displayName); 172 } 173 } 174 175 public void prepareForDirectory(DocumentInfo cwd) { 176 setSaveEnabled(cwd != null && cwd.isCreateSupported()); 177 } 178 179 private void setSaveEnabled(boolean enabled) { 180 mSave.setEnabled(enabled); 181 } 182 183 public void setPending(boolean pending) { 184 mSave.setVisibility(pending ? View.INVISIBLE : View.VISIBLE); 185 mProgress.setVisibility(pending ? View.VISIBLE : View.GONE); 186 } 187 } 188
