ActionBarActivityDelegateBase.java revision 6e6abe6eb358db4c3932752249c8ac61dd3dab21 
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
17package android.support.v7.app;
18
19import android.content.Context;
20import android.content.res.Configuration;
21import android.content.res.TypedArray;
22import android.support.v4.view.WindowCompat;
23import android.support.v7.appcompat.R;
24import android.support.v7.internal.view.menu.ListMenuPresenter;
25import android.support.v7.internal.view.menu.MenuBuilder;
26import android.support.v7.internal.view.menu.MenuPresenter;
27import android.support.v7.internal.view.menu.MenuView;
28import android.support.v7.internal.view.menu.MenuWrapperFactory;
29import android.support.v7.internal.widget.ActionBarContainer;
30import android.support.v7.internal.widget.ActionBarContextView;
31import android.support.v7.internal.widget.ActionBarView;
32import android.support.v7.internal.widget.ProgressBarICS;
33import android.support.v7.view.ActionMode;
34import android.util.Log;
35import android.view.LayoutInflater;
36import android.view.Menu;
37import android.view.MenuItem;
38import android.view.View;
39import android.view.ViewGroup;
40import android.view.Window;
41import android.widget.FrameLayout;
42
43class ActionBarActivityDelegateBase extends ActionBarActivityDelegate implements
44        MenuPresenter.Callback, MenuBuilder.Callback {
45    private static final String TAG = "ActionBarActivityDelegateBase";
46
47    private ActionBarView mActionBarView;
48    private ListMenuPresenter mListMenuPresenter;
49    private MenuBuilder mMenu;
50
51    private ActionMode mActionMode;
52
53    // true if we have installed a window sub-decor layout.
54    private boolean mSubDecorInstalled;
55
56    // Used to keep track of Progress Bar Window features
57    private boolean mFeatureProgress, mFeatureIndeterminateProgress;
58
59    private boolean mInvalidateMenuPosted;
60    private final Runnable mInvalidateMenuRunnable = new Runnable() {
61        @Override
62        public void run() {
63            final MenuBuilder menu = createMenu();
64            if (mActivity.superOnCreatePanelMenu(Window.FEATURE_OPTIONS_PANEL, menu) &&
65                    mActivity.superOnPreparePanel(Window.FEATURE_OPTIONS_PANEL, null, menu)) {
66                setMenu(menu);
67            } else {
68                setMenu(null);
69            }
70
71            mInvalidateMenuPosted = false;
72        }
73    };
74
75    ActionBarActivityDelegateBase(ActionBarActivity activity) {
76        super(activity);
77    }
78
79    @Override
80    public ActionBar createSupportActionBar() {
81        ensureSubDecor();
82        return new ActionBarImplBase(mActivity, mActivity);
83    }
84
85    @Override
86    public void onConfigurationChanged(Configuration newConfig) {
87        // If this is called before sub-decor is installed, ActionBar will not
88        // be properly initialized.
89        if (mHasActionBar && mSubDecorInstalled) {
90            // Note: The action bar will need to access
91            // view changes from superclass.
92            ActionBarImplBase actionBar = (ActionBarImplBase) getSupportActionBar();
93            actionBar.onConfigurationChanged(newConfig);
94        }
95    }
96
97    @Override
98    public void onStop() {
99        ActionBarImplBase ab = (ActionBarImplBase) getSupportActionBar();
100        if (ab != null) {
101            ab.setShowHideAnimationEnabled(false);
102        }
103    }
104
105    @Override
106    public void onPostResume() {
107        ActionBarImplBase ab = (ActionBarImplBase) getSupportActionBar();
108        if (ab != null) {
109            ab.setShowHideAnimationEnabled(true);
110        }
111    }
112
113    @Override
114    public void setContentView(View v) {
115        ensureSubDecor();
116        if (mHasActionBar) {
117            final ViewGroup contentParent =
118                    (ViewGroup) mActivity.findViewById(R.id.action_bar_activity_content);
119            contentParent.removeAllViews();
120            contentParent.addView(v);
121        } else {
122            mActivity.superSetContentView(v);
123        }
124    }
125
126    @Override
127    public void setContentView(int resId) {
128        ensureSubDecor();
129        if (mHasActionBar) {
130            final ViewGroup contentParent =
131                    (ViewGroup) mActivity.findViewById(R.id.action_bar_activity_content);
132            contentParent.removeAllViews();
133            final LayoutInflater inflater = mActivity.getLayoutInflater();
134            inflater.inflate(resId, contentParent);
135        } else {
136            mActivity.superSetContentView(resId);
137        }
138    }
139
140    @Override
141    public void setContentView(View v, ViewGroup.LayoutParams lp) {
142        ensureSubDecor();
143        if (mHasActionBar) {
144            final ViewGroup contentParent =
145                    (ViewGroup) mActivity.findViewById(R.id.action_bar_activity_content);
146            contentParent.removeAllViews();
147            contentParent.addView(v, lp);
148        } else {
149            mActivity.superSetContentView(v, lp);
150        }
151    }
152
153    @Override
154    public void addContentView(View v, ViewGroup.LayoutParams lp) {
155        ensureSubDecor();
156        if (mHasActionBar) {
157            final ViewGroup contentParent =
158                    (ViewGroup) mActivity.findViewById(R.id.action_bar_activity_content);
159            contentParent.addView(v, lp);
160        } else {
161            mActivity.superSetContentView(v, lp);
162        }
163    }
164
165    private void ensureSubDecor() {
166        if (mHasActionBar && !mSubDecorInstalled) {
167            if (mOverlayActionBar) {
168                mActivity.superSetContentView(R.layout.abc_action_bar_decor_overlay);
169            } else {
170                mActivity.superSetContentView(R.layout.abc_action_bar_decor);
171            }
172            mActionBarView = (ActionBarView) mActivity.findViewById(R.id.action_bar);
173            mActionBarView.setWindowCallback(mActivity);
174
175            /**
176             * Progress Bars
177             */
178            if (mFeatureProgress) {
179                mActionBarView.initProgress();
180            }
181            if (mFeatureIndeterminateProgress) {
182                mActionBarView.initIndeterminateProgress();
183            }
184
185            /**
186             * Split Action Bar
187             */
188            boolean splitWhenNarrow = UIOPTION_SPLIT_ACTION_BAR_WHEN_NARROW
189                    .equals(getUiOptionsFromMetadata());
190            boolean splitActionBar;
191
192            if (splitWhenNarrow) {
193                splitActionBar = mActivity.getResources()
194                        .getBoolean(R.bool.split_action_bar_is_narrow);
195            } else {
196                TypedArray a = mActivity.obtainStyledAttributes(R.styleable.ActionBarWindow);
197                splitActionBar = a
198                        .getBoolean(R.styleable.ActionBarWindow_windowSplitActionBar, false);
199                a.recycle();
200            }
201
202            final ActionBarContainer splitView = (ActionBarContainer) mActivity.findViewById(
203                    R.id.split_action_bar);
204            if (splitView != null) {
205                mActionBarView.setSplitView(splitView);
206                mActionBarView.setSplitActionBar(splitActionBar);
207                mActionBarView.setSplitWhenNarrow(splitWhenNarrow);
208
209                final ActionBarContextView cab = (ActionBarContextView) mActivity.findViewById(
210                        R.id.action_context_bar);
211                cab.setSplitView(splitView);
212                cab.setSplitActionBar(splitActionBar);
213                cab.setSplitWhenNarrow(splitWhenNarrow);
214            }
215
216            mSubDecorInstalled = true;
217
218            supportInvalidateOptionsMenu();
219        }
220    }
221
222    @Override
223    public boolean supportRequestWindowFeature(int featureId) {
224        switch (featureId) {
225            case WindowCompat.FEATURE_ACTION_BAR:
226                mHasActionBar = true;
227                return true;
228            case WindowCompat.FEATURE_ACTION_BAR_OVERLAY:
229                mOverlayActionBar = true;
230                return true;
231            case Window.FEATURE_PROGRESS:
232                mFeatureProgress = true;
233                return true;
234            case Window.FEATURE_INDETERMINATE_PROGRESS:
235                mFeatureIndeterminateProgress = true;
236                return true;
237            default:
238                return mActivity.requestWindowFeature(featureId);
239        }
240    }
241
242    @Override
243    public void setTitle(CharSequence title) {
244        ActionBar ab = getSupportActionBar();
245        if (ab != null) {
246            ab.setTitle(title);
247        }
248    }
249
250    @Override
251    public View onCreatePanelView(int featureId) {
252        View createdPanelView = null;
253
254        if (featureId == Window.FEATURE_OPTIONS_PANEL) {
255            boolean show = true;
256            MenuBuilder menu = mMenu;
257
258            if (mActionMode == null) {
259                // We only want to dispatch Activity/Fragment menu calls if there isn't
260                // currently an action mode
261
262                if (menu == null) {
263                    // We don't have a menu created, so create one
264                    menu = createMenu();
265                    setMenu(menu);
266
267                    // Make sure we're not dispatching item changes to presenters
268                    menu.stopDispatchingItemsChanged();
269                    // Dispatch onCreateSupportOptionsMenu
270                    show = mActivity.superOnCreatePanelMenu(Window.FEATURE_OPTIONS_PANEL, menu);
271                }
272
273                if (show) {
274                    // Make sure we're not dispatching item changes to presenters
275                    menu.stopDispatchingItemsChanged();
276                    // Dispatch onPrepareSupportOptionsMenu
277                    show = mActivity.superOnPreparePanel(Window.FEATURE_OPTIONS_PANEL, null, menu);
278                }
279            }
280
281            if (show) {
282                createdPanelView = (View) getListMenuView(mActivity, this);
283
284                // Allow menu to start dispatching changes to presenters
285                menu.startDispatchingItemsChanged();
286            } else {
287                // If the menu isn't being shown, we no longer need it
288                setMenu(null);
289            }
290        }
291
292        return createdPanelView;
293    }
294
295    @Override
296    public boolean onCreatePanelMenu(int featureId, Menu menu) {
297        if (featureId != Window.FEATURE_OPTIONS_PANEL) {
298            return mActivity.superOnCreatePanelMenu(featureId, menu);
299        }
300        return false;
301    }
302
303    @Override
304    public boolean onPreparePanel(int featureId, View view, Menu menu) {
305        if (featureId != Window.FEATURE_OPTIONS_PANEL) {
306            return mActivity.superOnPreparePanel(featureId, view, menu);
307        }
308        return false;
309    }
310
311    @Override
312    public boolean onMenuItemSelected(int featureId, MenuItem item) {
313        if (featureId == Window.FEATURE_OPTIONS_PANEL) {
314            item = MenuWrapperFactory.createMenuItemWrapper(item);
315        }
316        return mActivity.superOnMenuItemSelected(featureId, item);
317    }
318
319    @Override
320    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
321        return mActivity.onMenuItemSelected(Window.FEATURE_OPTIONS_PANEL, item);
322    }
323
324    @Override
325    public void onMenuModeChange(MenuBuilder menu) {
326        reopenMenu(menu, true);
327    }
328
329    @Override
330    public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
331        mActivity.closeOptionsMenu();
332    }
333
334    @Override
335    public boolean onOpenSubMenu(MenuBuilder subMenu) {
336        return false;
337    }
338
339    @Override
340    public ActionMode startSupportActionMode(ActionMode.Callback callback) {
341        if (callback == null) {
342            throw new IllegalArgumentException("ActionMode callback can not be null.");
343        }
344
345        if (mActionMode != null) {
346            mActionMode.finish();
347        }
348
349        final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapper(callback);
350
351        ActionBarImplBase ab = (ActionBarImplBase) getSupportActionBar();
352        if (ab != null) {
353            mActionMode = ab.startActionMode(wrappedCallback);
354        }
355
356        if (mActionMode != null) {
357            mActivity.onSupportActionModeStarted(mActionMode);
358        }
359        return mActionMode;
360    }
361
362    @Override
363    public void supportInvalidateOptionsMenu() {
364        if (!mInvalidateMenuPosted) {
365            mInvalidateMenuPosted = true;
366            mActivity.getWindow().getDecorView().post(mInvalidateMenuRunnable);
367        }
368    }
369
370    private MenuBuilder createMenu() {
371        MenuBuilder menu = new MenuBuilder(getActionBarThemedContext());
372        menu.setCallback(this);
373        return menu;
374    }
375
376    private void reopenMenu(MenuBuilder menu, boolean toggleMenuMode) {
377        if (mActionBarView != null && mActionBarView.isOverflowReserved()) {
378            if (!mActionBarView.isOverflowMenuShowing() || !toggleMenuMode) {
379                if (mActionBarView.getVisibility() == View.VISIBLE) {
380                    mActionBarView.showOverflowMenu();
381                }
382            } else {
383                mActionBarView.hideOverflowMenu();
384            }
385            return;
386        }
387
388        menu.close();
389    }
390
391    private MenuView getListMenuView(Context context, MenuPresenter.Callback cb) {
392        if (mMenu == null) {
393            return null;
394        }
395
396        if (mListMenuPresenter == null) {
397            TypedArray a = context.obtainStyledAttributes(R.styleable.Theme);
398            final int listPresenterTheme = a.getResourceId(
399                    R.styleable.Theme_panelMenuListTheme,
400                    R.style.Theme_AppCompat_CompactMenu);
401            a.recycle();
402
403            mListMenuPresenter = new ListMenuPresenter(
404                    R.layout.abc_list_menu_item_layout, listPresenterTheme);
405            mListMenuPresenter.setCallback(cb);
406            mMenu.addMenuPresenter(mListMenuPresenter);
407        } else {
408            // Make sure we update the ListView
409            mListMenuPresenter.updateMenuView(false);
410        }
411
412        return mListMenuPresenter.getMenuView(new FrameLayout(context));
413    }
414
415    private void setMenu(MenuBuilder menu) {
416        if (menu == mMenu) {
417            return;
418        }
419
420        if (mMenu != null) {
421            mMenu.removeMenuPresenter(mListMenuPresenter);
422        }
423        mMenu = menu;
424
425        if (menu != null && mListMenuPresenter != null) {
426            // Only update list menu if there isn't an action mode menu
427            menu.addMenuPresenter(mListMenuPresenter);
428        }
429        if (mActionBarView != null) {
430            mActionBarView.setMenu(menu, this);
431        }
432    }
433
434    @Override
435    public boolean onBackPressed() {
436        // Back cancels action modes first.
437        if (mActionMode != null) {
438            mActionMode.finish();
439            return true;
440        }
441
442        // Next collapse any expanded action views.
443        if (mActionBarView != null && mActionBarView.hasExpandedActionView()) {
444            mActionBarView.collapseActionView();
445            return true;
446        }
447
448        return false;
449    }
450
451    @Override
452    void setSupportProgressBarVisibility(boolean visible) {
453        updateProgressBars(visible ? Window.PROGRESS_VISIBILITY_ON :
454                Window.PROGRESS_VISIBILITY_OFF);
455    }
456
457    @Override
458    void setSupportProgressBarIndeterminateVisibility(boolean visible) {
459        updateProgressBars(visible ? Window.PROGRESS_VISIBILITY_ON :
460                Window.PROGRESS_VISIBILITY_OFF);
461    }
462
463    @Override
464    void setSupportProgressBarIndeterminate(boolean indeterminate) {
465        updateProgressBars(indeterminate ? Window.PROGRESS_INDETERMINATE_ON
466                : Window.PROGRESS_INDETERMINATE_OFF);
467    }
468
469    @Override
470    void setSupportProgress(int progress) {
471        updateProgressBars(Window.PROGRESS_START + progress);
472    }
473
474    /**
475     * Progress Bar function. Mostly extracted from PhoneWindow.java
476     */
477    private void updateProgressBars(int value) {
478        ProgressBarICS circularProgressBar = getCircularProgressBar();
479        ProgressBarICS horizontalProgressBar = getHorizontalProgressBar();
480
481        if (value == Window.PROGRESS_VISIBILITY_ON) {
482            if (mFeatureProgress) {
483                int level = horizontalProgressBar.getProgress();
484                int visibility = (horizontalProgressBar.isIndeterminate() || level < 10000) ?
485                        View.VISIBLE : View.INVISIBLE;
486                horizontalProgressBar.setVisibility(visibility);
487            }
488            if (mFeatureIndeterminateProgress) {
489                circularProgressBar.setVisibility(View.VISIBLE);
490            }
491        } else if (value == Window.PROGRESS_VISIBILITY_OFF) {
492            if (mFeatureProgress) {
493                horizontalProgressBar.setVisibility(View.GONE);
494            }
495            if (mFeatureIndeterminateProgress) {
496                circularProgressBar.setVisibility(View.GONE);
497            }
498        } else if (value == Window.PROGRESS_INDETERMINATE_ON) {
499            horizontalProgressBar.setIndeterminate(true);
500        } else if (value == Window.PROGRESS_INDETERMINATE_OFF) {
501            horizontalProgressBar.setIndeterminate(false);
502        } else if (Window.PROGRESS_START <= value && value <= Window.PROGRESS_END) {
503            // We want to set the progress value before testing for visibility
504            // so that when the progress bar becomes visible again, it has the
505            // correct level.
506            horizontalProgressBar.setProgress(value - Window.PROGRESS_START);
507
508            if (value < Window.PROGRESS_END) {
509                showProgressBars(horizontalProgressBar, circularProgressBar);
510            } else {
511                hideProgressBars(horizontalProgressBar, circularProgressBar);
512            }
513        }
514    }
515
516    private void showProgressBars(ProgressBarICS horizontalProgressBar,
517            ProgressBarICS spinnyProgressBar) {
518        if (mFeatureIndeterminateProgress && spinnyProgressBar.getVisibility() == View.INVISIBLE) {
519            spinnyProgressBar.setVisibility(View.VISIBLE);
520        }
521        // Only show the progress bars if the primary progress is not complete
522        if (mFeatureProgress && horizontalProgressBar.getProgress() < 10000) {
523            horizontalProgressBar.setVisibility(View.VISIBLE);
524        }
525    }
526
527    private void hideProgressBars(ProgressBarICS horizontalProgressBar,
528            ProgressBarICS spinnyProgressBar) {
529        if (mFeatureIndeterminateProgress && spinnyProgressBar.getVisibility() == View.VISIBLE) {
530            spinnyProgressBar.setVisibility(View.INVISIBLE);
531        }
532        if (mFeatureProgress && horizontalProgressBar.getVisibility() == View.VISIBLE) {
533            horizontalProgressBar.setVisibility(View.INVISIBLE);
534        }
535    }
536
537    private ProgressBarICS getCircularProgressBar() {
538        ProgressBarICS pb = (ProgressBarICS) mActionBarView.findViewById(R.id.progress_circular);
539        if (pb != null) {
540            pb.setVisibility(View.INVISIBLE);
541        }
542        return pb;
543    }
544
545    private ProgressBarICS getHorizontalProgressBar() {
546        ProgressBarICS pb = (ProgressBarICS) mActionBarView.findViewById(R.id.progress_horizontal);
547        if (pb != null) {
548            pb.setVisibility(View.INVISIBLE);
549        }
550        return pb;
551    }
552
553    /**
554     * Clears out internal reference when the action mode is destroyed.
555     */
556    private class ActionModeCallbackWrapper implements ActionMode.Callback {
557        private ActionMode.Callback mWrapped;
558
559        public ActionModeCallbackWrapper(ActionMode.Callback wrapped) {
560            mWrapped = wrapped;
561        }
562
563        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
564            return mWrapped.onCreateActionMode(mode, menu);
565        }
566
567        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
568            return mWrapped.onPrepareActionMode(mode, menu);
569        }
570
571        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
572            return mWrapped.onActionItemClicked(mode, item);
573        }
574
575        public void onDestroyActionMode(ActionMode mode) {
576            mWrapped.onDestroyActionMode(mode);
577            mActivity.onSupportActionModeFinished(mode);
578            mActionMode = null;
579        }
580    }
581
582}
583