Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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.view; |
| 18 | |
| 19 | |
Tor Norbye | 7b9c912 | 2013-05-30 16:48:33 -0700 | [diff] [blame] | 20 | import android.annotation.StringRes; |
Clara Bayarri | cba5fc2 | 2015-02-25 14:44:34 +0000 | [diff] [blame] | 21 | import android.graphics.Rect; |
Tor Norbye | 7b9c912 | 2013-05-30 16:48:33 -0700 | [diff] [blame] | 22 | |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 23 | /** |
Scott Main | 5e09593 | 2011-12-16 13:06:22 -0800 | [diff] [blame] | 24 | * Represents a contextual mode of the user interface. Action modes can be used to provide |
| 25 | * alternative interaction modes and replace parts of the normal UI until finished. |
| 26 | * Examples of good action modes include text selection and contextual actions. |
| 27 | * <div class="special reference"> |
| 28 | * <h3>Developer Guides</h3> |
| 29 | * <p>For information about how to provide contextual actions with {@code ActionMode}, |
Scott Main | ef0314b | 2012-02-17 14:37:58 -0800 | [diff] [blame] | 30 | * read the <a href="{@docRoot}guide/topics/ui/menus.html#context-menu">Menus</a> |
Scott Main | 5e09593 | 2011-12-16 13:06:22 -0800 | [diff] [blame] | 31 | * developer guide.</p> |
| 32 | * </div> |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 33 | */ |
| 34 | public abstract class ActionMode { |
Clara Bayarri | d6aeff1 | 2015-01-26 16:38:07 +0000 | [diff] [blame] | 35 | |
| 36 | /** |
| 37 | * The action mode is treated as a Primary mode. This is the default. |
| 38 | * Use with {@link #setType}. |
| 39 | */ |
| 40 | public static final int TYPE_PRIMARY = 0; |
| 41 | /** |
| 42 | * The action mode is treated as a Floating Toolbar. |
| 43 | * Use with {@link #setType}. |
| 44 | */ |
| 45 | public static final int TYPE_FLOATING = 1; |
| 46 | |
Abodunrinwa Toki | fd3a3a1 | 2015-05-05 20:04:34 +0100 | [diff] [blame] | 47 | /** |
Abodunrinwa Toki | 9e21128 | 2015-06-05 02:46:57 +0100 | [diff] [blame] | 48 | * Default value to hide the action mode for |
| 49 | * {@link ViewConfiguration#getDefaultActionModeHideDuration()}. |
Abodunrinwa Toki | fd3a3a1 | 2015-05-05 20:04:34 +0100 | [diff] [blame] | 50 | */ |
Abodunrinwa Toki | 9e21128 | 2015-06-05 02:46:57 +0100 | [diff] [blame] | 51 | public static final int DEFAULT_HIDE_DURATION = -1; |
Abodunrinwa Toki | fd3a3a1 | 2015-05-05 20:04:34 +0100 | [diff] [blame] | 52 | |
Adam Powell | f178737 | 2011-07-14 22:37:06 -0700 | [diff] [blame] | 53 | private Object mTag; |
Adam Powell | 785c447 | 2012-05-02 21:25:39 -0700 | [diff] [blame] | 54 | private boolean mTitleOptionalHint; |
Clara Bayarri | d6aeff1 | 2015-01-26 16:38:07 +0000 | [diff] [blame] | 55 | private int mType = TYPE_PRIMARY; |
Adam Powell | f178737 | 2011-07-14 22:37:06 -0700 | [diff] [blame] | 56 | |
| 57 | /** |
| 58 | * Set a tag object associated with this ActionMode. |
| 59 | * |
| 60 | * <p>Like the tag available to views, this allows applications to associate arbitrary |
| 61 | * data with an ActionMode for later reference. |
| 62 | * |
| 63 | * @param tag Tag to associate with this ActionMode |
| 64 | * |
| 65 | * @see #getTag() |
| 66 | */ |
| 67 | public void setTag(Object tag) { |
| 68 | mTag = tag; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Retrieve the tag object associated with this ActionMode. |
| 73 | * |
| 74 | * <p>Like the tag available to views, this allows applications to associate arbitrary |
| 75 | * data with an ActionMode for later reference. |
| 76 | * |
| 77 | * @return Tag associated with this ActionMode |
| 78 | * |
| 79 | * @see #setTag(Object) |
| 80 | */ |
| 81 | public Object getTag() { |
| 82 | return mTag; |
| 83 | } |
| 84 | |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 85 | /** |
| 86 | * Set the title of the action mode. This method will have no visible effect if |
| 87 | * a custom view has been set. |
| 88 | * |
| 89 | * @param title Title string to set |
| 90 | * |
Adam Powell | c9ae2a2 | 2010-07-28 14:44:21 -0700 | [diff] [blame] | 91 | * @see #setTitle(int) |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 92 | * @see #setCustomView(View) |
| 93 | */ |
| 94 | public abstract void setTitle(CharSequence title); |
| 95 | |
| 96 | /** |
Adam Powell | c9ae2a2 | 2010-07-28 14:44:21 -0700 | [diff] [blame] | 97 | * Set the title of the action mode. This method will have no visible effect if |
| 98 | * a custom view has been set. |
| 99 | * |
| 100 | * @param resId Resource ID of a string to set as the title |
| 101 | * |
| 102 | * @see #setTitle(CharSequence) |
| 103 | * @see #setCustomView(View) |
| 104 | */ |
Tor Norbye | 7b9c912 | 2013-05-30 16:48:33 -0700 | [diff] [blame] | 105 | public abstract void setTitle(@StringRes int resId); |
Adam Powell | c9ae2a2 | 2010-07-28 14:44:21 -0700 | [diff] [blame] | 106 | |
| 107 | /** |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 108 | * Set the subtitle of the action mode. This method will have no visible effect if |
| 109 | * a custom view has been set. |
| 110 | * |
| 111 | * @param subtitle Subtitle string to set |
| 112 | * |
Adam Powell | c9ae2a2 | 2010-07-28 14:44:21 -0700 | [diff] [blame] | 113 | * @see #setSubtitle(int) |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 114 | * @see #setCustomView(View) |
| 115 | */ |
| 116 | public abstract void setSubtitle(CharSequence subtitle); |
| 117 | |
| 118 | /** |
Adam Powell | c9ae2a2 | 2010-07-28 14:44:21 -0700 | [diff] [blame] | 119 | * Set the subtitle of the action mode. This method will have no visible effect if |
| 120 | * a custom view has been set. |
| 121 | * |
| 122 | * @param resId Resource ID of a string to set as the subtitle |
| 123 | * |
| 124 | * @see #setSubtitle(CharSequence) |
| 125 | * @see #setCustomView(View) |
| 126 | */ |
Tor Norbye | 7b9c912 | 2013-05-30 16:48:33 -0700 | [diff] [blame] | 127 | public abstract void setSubtitle(@StringRes int resId); |
Adam Powell | c9ae2a2 | 2010-07-28 14:44:21 -0700 | [diff] [blame] | 128 | |
| 129 | /** |
Adam Powell | b98a81f | 2012-02-24 11:09:07 -0800 | [diff] [blame] | 130 | * Set whether or not the title/subtitle display for this action mode |
| 131 | * is optional. |
| 132 | * |
| 133 | * <p>In many cases the supplied title for an action mode is merely |
| 134 | * meant to add context and is not strictly required for the action |
| 135 | * mode to be useful. If the title is optional, the system may choose |
| 136 | * to hide the title entirely rather than truncate it due to a lack |
| 137 | * of available space.</p> |
| 138 | * |
| 139 | * <p>Note that this is merely a hint; the underlying implementation |
| 140 | * may choose to ignore this setting under some circumstances.</p> |
| 141 | * |
| 142 | * @param titleOptional true if the title only presents optional information. |
| 143 | */ |
| 144 | public void setTitleOptionalHint(boolean titleOptional) { |
Adam Powell | 785c447 | 2012-05-02 21:25:39 -0700 | [diff] [blame] | 145 | mTitleOptionalHint = titleOptional; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * @return true if this action mode has been given a hint to consider the |
| 150 | * title/subtitle display to be optional. |
| 151 | * |
| 152 | * @see #setTitleOptionalHint(boolean) |
| 153 | * @see #isTitleOptional() |
| 154 | */ |
| 155 | public boolean getTitleOptionalHint() { |
| 156 | return mTitleOptionalHint; |
Adam Powell | b98a81f | 2012-02-24 11:09:07 -0800 | [diff] [blame] | 157 | } |
| 158 | |
| 159 | /** |
| 160 | * @return true if this action mode considers the title and subtitle fields |
| 161 | * as optional. Optional titles may not be displayed to the user. |
| 162 | */ |
| 163 | public boolean isTitleOptional() { |
| 164 | return false; |
| 165 | } |
| 166 | |
| 167 | /** |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 168 | * Set a custom view for this action mode. The custom view will take the place of |
| 169 | * the title and subtitle. Useful for things like search boxes. |
| 170 | * |
| 171 | * @param view Custom view to use in place of the title/subtitle. |
| 172 | * |
| 173 | * @see #setTitle(CharSequence) |
| 174 | * @see #setSubtitle(CharSequence) |
| 175 | */ |
| 176 | public abstract void setCustomView(View view); |
| 177 | |
| 178 | /** |
Clara Bayarri | d6aeff1 | 2015-01-26 16:38:07 +0000 | [diff] [blame] | 179 | * Set a type for this action mode. This will affect how the system renders the action mode if |
| 180 | * it has to. |
| 181 | * |
| 182 | * @param type One of {@link #TYPE_PRIMARY} or {@link #TYPE_FLOATING}. |
| 183 | */ |
| 184 | public void setType(int type) { |
| 185 | mType = type; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Returns the type for this action mode. |
| 190 | * |
| 191 | * @return One of {@link #TYPE_PRIMARY} or {@link #TYPE_FLOATING}. |
| 192 | */ |
| 193 | public int getType() { |
| 194 | return mType; |
| 195 | } |
| 196 | |
| 197 | /** |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 198 | * Invalidate the action mode and refresh menu content. The mode's |
| 199 | * {@link ActionMode.Callback} will have its |
| 200 | * {@link Callback#onPrepareActionMode(ActionMode, Menu)} method called. |
| 201 | * If it returns true the menu will be scanned for updated content and any relevant changes |
| 202 | * will be reflected to the user. |
| 203 | */ |
| 204 | public abstract void invalidate(); |
| 205 | |
| 206 | /** |
Clara Bayarri | cba5fc2 | 2015-02-25 14:44:34 +0000 | [diff] [blame] | 207 | * Invalidate the content rect associated to this ActionMode. This only makes sense for |
| 208 | * action modes that support dynamic positioning on the screen, and provides a more efficient |
| 209 | * way to reposition it without invalidating the whole action mode. |
| 210 | * |
| 211 | * @see Callback2#onGetContentRect(ActionMode, View, Rect) . |
| 212 | */ |
| 213 | public void invalidateContentRect() {} |
| 214 | |
| 215 | /** |
Abodunrinwa Toki | 9e21128 | 2015-06-05 02:46:57 +0100 | [diff] [blame] | 216 | * Hide the action mode view from obstructing the content below for a short duration. |
Abodunrinwa Toki | fd3a3a1 | 2015-05-05 20:04:34 +0100 | [diff] [blame] | 217 | * This only makes sense for action modes that support dynamic positioning on the screen. |
Abodunrinwa Toki | 9e21128 | 2015-06-05 02:46:57 +0100 | [diff] [blame] | 218 | * If this method is called again before the hide duration expires, the later hide call will |
Abodunrinwa Toki | fd3a3a1 | 2015-05-05 20:04:34 +0100 | [diff] [blame] | 219 | * cancel the former and then take effect. |
Abodunrinwa Toki | 9e21128 | 2015-06-05 02:46:57 +0100 | [diff] [blame] | 220 | * NOTE that there is an internal limit to how long the mode can be hidden for. It's typically |
Abodunrinwa Toki | fd3a3a1 | 2015-05-05 20:04:34 +0100 | [diff] [blame] | 221 | * about a few seconds. |
| 222 | * |
Abodunrinwa Toki | 9e21128 | 2015-06-05 02:46:57 +0100 | [diff] [blame] | 223 | * @param duration The number of milliseconds to hide for. |
| 224 | * @see #DEFAULT_HIDE_DURATION |
Abodunrinwa Toki | fd3a3a1 | 2015-05-05 20:04:34 +0100 | [diff] [blame] | 225 | */ |
Abodunrinwa Toki | 9e21128 | 2015-06-05 02:46:57 +0100 | [diff] [blame] | 226 | public void hide(long duration) {} |
Abodunrinwa Toki | fd3a3a1 | 2015-05-05 20:04:34 +0100 | [diff] [blame] | 227 | |
| 228 | /** |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 229 | * Finish and close this action mode. The action mode's {@link ActionMode.Callback} will |
| 230 | * have its {@link Callback#onDestroyActionMode(ActionMode)} method called. |
| 231 | */ |
| 232 | public abstract void finish(); |
| 233 | |
| 234 | /** |
| 235 | * Returns the menu of actions that this action mode presents. |
| 236 | * @return The action mode's menu. |
| 237 | */ |
| 238 | public abstract Menu getMenu(); |
| 239 | |
| 240 | /** |
| 241 | * Returns the current title of this action mode. |
| 242 | * @return Title text |
| 243 | */ |
| 244 | public abstract CharSequence getTitle(); |
| 245 | |
| 246 | /** |
| 247 | * Returns the current subtitle of this action mode. |
| 248 | * @return Subtitle text |
| 249 | */ |
| 250 | public abstract CharSequence getSubtitle(); |
| 251 | |
| 252 | /** |
| 253 | * Returns the current custom view for this action mode. |
| 254 | * @return The current custom view |
| 255 | */ |
| 256 | public abstract View getCustomView(); |
| 257 | |
| 258 | /** |
Adam Powell | 9168f0b | 2010-08-02 15:46:24 -0700 | [diff] [blame] | 259 | * Returns a {@link MenuInflater} with the ActionMode's context. |
| 260 | */ |
| 261 | public abstract MenuInflater getMenuInflater(); |
| 262 | |
| 263 | /** |
Abodunrinwa Toki | 972ab4f | 2015-06-17 18:04:23 +0100 | [diff] [blame] | 264 | * Called when the window containing the view that started this action mode gains or loses |
| 265 | * focus. |
| 266 | * |
| 267 | * @param hasWindowFocus True if the window containing the view that started this action mode |
| 268 | * now has focus, false otherwise. |
| 269 | * |
| 270 | */ |
| 271 | public void onWindowFocusChanged(boolean hasWindowFocus) {} |
| 272 | |
| 273 | /** |
Adam Powell | f8419a0 | 2011-10-03 12:08:54 -0700 | [diff] [blame] | 274 | * Returns whether the UI presenting this action mode can take focus or not. |
| 275 | * This is used by internal components within the framework that would otherwise |
| 276 | * present an action mode UI that requires focus, such as an EditText as a custom view. |
| 277 | * |
| 278 | * @return true if the UI used to show this action mode can take focus |
| 279 | * @hide Internal use only |
| 280 | */ |
| 281 | public boolean isUiFocusable() { |
| 282 | return true; |
| 283 | } |
| 284 | |
| 285 | /** |
Adam Powell | 6e34636 | 2010-07-23 10:18:23 -0700 | [diff] [blame] | 286 | * Callback interface for action modes. Supplied to |
| 287 | * {@link View#startActionMode(Callback)}, a Callback |
| 288 | * configures and handles events raised by a user's interaction with an action mode. |
| 289 | * |
| 290 | * <p>An action mode's lifecycle is as follows: |
| 291 | * <ul> |
| 292 | * <li>{@link Callback#onCreateActionMode(ActionMode, Menu)} once on initial |
| 293 | * creation</li> |
| 294 | * <li>{@link Callback#onPrepareActionMode(ActionMode, Menu)} after creation |
| 295 | * and any time the {@link ActionMode} is invalidated</li> |
| 296 | * <li>{@link Callback#onActionItemClicked(ActionMode, MenuItem)} any time a |
| 297 | * contextual action button is clicked</li> |
| 298 | * <li>{@link Callback#onDestroyActionMode(ActionMode)} when the action mode |
| 299 | * is closed</li> |
| 300 | * </ul> |
| 301 | */ |
| 302 | public interface Callback { |
| 303 | /** |
| 304 | * Called when action mode is first created. The menu supplied will be used to |
| 305 | * generate action buttons for the action mode. |
| 306 | * |
| 307 | * @param mode ActionMode being created |
| 308 | * @param menu Menu used to populate action buttons |
| 309 | * @return true if the action mode should be created, false if entering this |
| 310 | * mode should be aborted. |
| 311 | */ |
| 312 | public boolean onCreateActionMode(ActionMode mode, Menu menu); |
| 313 | |
| 314 | /** |
| 315 | * Called to refresh an action mode's action menu whenever it is invalidated. |
| 316 | * |
| 317 | * @param mode ActionMode being prepared |
| 318 | * @param menu Menu used to populate action buttons |
| 319 | * @return true if the menu or action mode was updated, false otherwise. |
| 320 | */ |
| 321 | public boolean onPrepareActionMode(ActionMode mode, Menu menu); |
| 322 | |
| 323 | /** |
| 324 | * Called to report a user click on an action button. |
| 325 | * |
| 326 | * @param mode The current ActionMode |
| 327 | * @param item The item that was clicked |
| 328 | * @return true if this callback handled the event, false if the standard MenuItem |
| 329 | * invocation should continue. |
| 330 | */ |
| 331 | public boolean onActionItemClicked(ActionMode mode, MenuItem item); |
| 332 | |
| 333 | /** |
| 334 | * Called when an action mode is about to be exited and destroyed. |
| 335 | * |
| 336 | * @param mode The current ActionMode being destroyed |
| 337 | */ |
| 338 | public void onDestroyActionMode(ActionMode mode); |
| 339 | } |
Clara Bayarri | cba5fc2 | 2015-02-25 14:44:34 +0000 | [diff] [blame] | 340 | |
| 341 | /** |
| 342 | * Extension of {@link ActionMode.Callback} to provide content rect information. This is |
| 343 | * required for ActionModes with dynamic positioning such as the ones with type |
| 344 | * {@link ActionMode#TYPE_FLOATING} to ensure the positioning doesn't obscure app content. If |
| 345 | * an app fails to provide a subclass of this class, a default implementation will be used. |
| 346 | */ |
| 347 | public static abstract class Callback2 implements ActionMode.Callback { |
| 348 | |
| 349 | /** |
| 350 | * Called when an ActionMode needs to be positioned on screen, potentially occluding view |
| 351 | * content. Note this may be called on a per-frame basis. |
| 352 | * |
| 353 | * @param mode The ActionMode that requires positioning. |
| 354 | * @param view The View that originated the ActionMode, in whose coordinates the Rect should |
| 355 | * be provided. |
Clara Bayarri | e95cc17 | 2015-05-21 17:45:19 +0100 | [diff] [blame] | 356 | * @param outRect The Rect to be populated with the content position. Use this to specify |
| 357 | * where the content in your app lives within the given view. This will be used |
| 358 | * to avoid occluding the given content Rect with the created ActionMode. |
Clara Bayarri | cba5fc2 | 2015-02-25 14:44:34 +0000 | [diff] [blame] | 359 | */ |
| 360 | public void onGetContentRect(ActionMode mode, View view, Rect outRect) { |
| 361 | if (view != null) { |
| 362 | outRect.set(0, 0, view.getWidth(), view.getHeight()); |
| 363 | } else { |
| 364 | outRect.set(0, 0, 0, 0); |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | } |
| 369 | } |