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