AddItemActivity.java revision 22ca9ec137ec8eb70026f90591ae01af7669a3b7 
1/*
2 * Copyright (C) 2017 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 com.android.launcher3.dragndrop;
18
19import static com.android.launcher3.logging.LoggerUtils.newCommandAction;
20import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
21import static com.android.launcher3.logging.LoggerUtils.newItemTarget;
22import static com.android.launcher3.logging.LoggerUtils.newLauncherEvent;
23
24import android.annotation.TargetApi;
25import android.app.ActivityOptions;
26import android.appwidget.AppWidgetHost;
27import android.appwidget.AppWidgetManager;
28import android.content.ClipData;
29import android.content.ClipDescription;
30import android.content.Intent;
31import android.content.pm.LauncherApps.PinItemRequest;
32import android.content.res.Configuration;
33import android.graphics.Canvas;
34import android.graphics.Point;
35import android.graphics.PointF;
36import android.graphics.Rect;
37import android.os.Build;
38import android.os.Bundle;
39import android.view.MotionEvent;
40import android.view.View;
41import android.view.View.DragShadowBuilder;
42import android.view.View.OnLongClickListener;
43import android.view.View.OnTouchListener;
44
45import com.android.launcher3.BaseActivity;
46import com.android.launcher3.InstallShortcutReceiver;
47import com.android.launcher3.InvariantDeviceProfile;
48import com.android.launcher3.Launcher;
49import com.android.launcher3.LauncherAppState;
50import com.android.launcher3.LauncherAppWidgetProviderInfo;
51import com.android.launcher3.R;
52import com.android.launcher3.Utilities;
53import com.android.launcher3.compat.AppWidgetManagerCompat;
54import com.android.launcher3.compat.LauncherAppsCompatVO;
55import com.android.launcher3.model.WidgetItem;
56import com.android.launcher3.shortcuts.ShortcutInfoCompat;
57import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
58import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
59import com.android.launcher3.widget.PendingAddShortcutInfo;
60import com.android.launcher3.widget.PendingAddWidgetInfo;
61import com.android.launcher3.widget.WidgetHostViewLoader;
62import com.android.launcher3.widget.WidgetImageView;
63
64@TargetApi(Build.VERSION_CODES.O)
65public class AddItemActivity extends BaseActivity implements OnLongClickListener, OnTouchListener {
66
67    private static final int SHADOW_SIZE = 10;
68
69    private static final int REQUEST_BIND_APPWIDGET = 1;
70    private static final String STATE_EXTRA_WIDGET_ID = "state.widget.id";
71
72    private final PointF mLastTouchPos = new PointF();
73
74    private PinItemRequest mRequest;
75    private LauncherAppState mApp;
76    private InvariantDeviceProfile mIdp;
77
78    private LivePreviewWidgetCell mWidgetCell;
79
80    // Widget request specific options.
81    private AppWidgetHost mAppWidgetHost;
82    private AppWidgetManagerCompat mAppWidgetManager;
83    private PendingAddWidgetInfo mPendingWidgetInfo;
84    private int mPendingBindWidgetId;
85    private Bundle mWidgetOptions;
86
87    @Override
88    protected void onCreate(Bundle savedInstanceState) {
89        super.onCreate(savedInstanceState);
90
91        mRequest = LauncherAppsCompatVO.getPinItemRequest(getIntent());
92        if (mRequest == null) {
93            finish();
94            return;
95        }
96
97        mApp = LauncherAppState.getInstance(this);
98        mIdp = mApp.getInvariantDeviceProfile();
99
100        // Use the application context to get the device profile, as in multiwindow-mode, the
101        // confirmation activity might be rotated.
102        mDeviceProfile = mIdp.getDeviceProfile(getApplicationContext());
103
104        setContentView(R.layout.add_item_confirmation_activity);
105        mWidgetCell = findViewById(R.id.widget_cell);
106
107        if (mRequest.getRequestType() == PinItemRequest.REQUEST_TYPE_SHORTCUT) {
108            setupShortcut();
109        } else {
110            if (!setupWidget()) {
111                // TODO: show error toast?
112                finish();
113            }
114        }
115
116        mWidgetCell.setOnTouchListener(this);
117        mWidgetCell.setOnLongClickListener(this);
118
119        // savedInstanceState is null when the activity is created the first time (i.e., avoids
120        // duplicate logging during rotation)
121        if (savedInstanceState == null) {
122            logCommand(Action.Command.ENTRY);
123        }
124    }
125
126    @Override
127    public boolean onTouch(View view, MotionEvent motionEvent) {
128        mLastTouchPos.set(motionEvent.getX(), motionEvent.getY());
129        return false;
130    }
131
132    @Override
133    public boolean onLongClick(View view) {
134        // Find the position of the preview relative to the touch location.
135        WidgetImageView img = mWidgetCell.getWidgetView();
136
137        // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and
138        // we abort the drag.
139        if (img.getBitmap() == null) {
140            return false;
141        }
142
143        Rect bounds = img.getBitmapBounds();
144        bounds.offset(img.getLeft() - (int) mLastTouchPos.x, img.getTop() - (int) mLastTouchPos.y);
145
146        // Start home and pass the draw request params
147        PinItemDragListener listener = new PinItemDragListener(mRequest, bounds,
148                img.getBitmap().getWidth(), img.getWidth());
149        Intent homeIntent = new Intent(Intent.ACTION_MAIN)
150                .addCategory(Intent.CATEGORY_HOME)
151                .setPackage(getPackageName())
152                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
153                .putExtra(PinItemDragListener.EXTRA_PIN_ITEM_DRAG_LISTENER, listener);
154
155        if (!getResources().getBoolean(R.bool.allow_rotation) &&
156                !Utilities.isAllowRotationPrefEnabled(this) &&
157                (getResources().getConfiguration().orientation ==
158                        Configuration.ORIENTATION_LANDSCAPE && !isInMultiWindowMode())) {
159            // If we are starting the drag in landscape even though home is locked in portrait,
160            // restart the home activity to temporarily allow rotation.
161            homeIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
162        }
163
164        startActivity(homeIntent,
165                ActivityOptions.makeCustomAnimation(this, 0, android.R.anim.fade_out).toBundle());
166
167        // Start a system drag and drop. We use a transparent bitmap as preview for system drag
168        // as the preview is handled internally by launcher.
169        ClipDescription description = new ClipDescription("", new String[]{listener.getMimeType()});
170        ClipData data = new ClipData(description, new ClipData.Item(""));
171        view.startDragAndDrop(data, new DragShadowBuilder(view) {
172
173            @Override
174            public void onDrawShadow(Canvas canvas) { }
175
176            @Override
177            public void onProvideShadowMetrics(Point outShadowSize, Point outShadowTouchPoint) {
178                outShadowSize.set(SHADOW_SIZE, SHADOW_SIZE);
179                outShadowTouchPoint.set(SHADOW_SIZE / 2, SHADOW_SIZE / 2);
180            }
181        }, null, View.DRAG_FLAG_GLOBAL);
182        return false;
183    }
184
185    private void setupShortcut() {
186        PinShortcutRequestActivityInfo shortcutInfo =
187                new PinShortcutRequestActivityInfo(mRequest, this);
188        WidgetItem item = new WidgetItem(shortcutInfo);
189        mWidgetCell.getWidgetView().setTag(new PendingAddShortcutInfo(shortcutInfo));
190        mWidgetCell.applyFromCellItem(item, mApp.getWidgetCache());
191        mWidgetCell.ensurePreview();
192    }
193
194    private boolean setupWidget() {
195        LauncherAppWidgetProviderInfo widgetInfo = LauncherAppWidgetProviderInfo
196                .fromProviderInfo(this, mRequest.getAppWidgetProviderInfo(this));
197        if (widgetInfo.minSpanX > mIdp.numColumns || widgetInfo.minSpanY > mIdp.numRows) {
198            // Cannot add widget
199            return false;
200        }
201        mWidgetCell.setPreview(PinItemDragListener.getPreview(mRequest));
202
203        mAppWidgetManager = AppWidgetManagerCompat.getInstance(this);
204        mAppWidgetHost = new AppWidgetHost(this, Launcher.APPWIDGET_HOST_ID);
205
206        mPendingWidgetInfo = new PendingAddWidgetInfo(widgetInfo);
207        mPendingWidgetInfo.spanX = Math.min(mIdp.numColumns, widgetInfo.spanX);
208        mPendingWidgetInfo.spanY = Math.min(mIdp.numRows, widgetInfo.spanY);
209        mWidgetOptions = WidgetHostViewLoader.getDefaultOptionsForWidget(this, mPendingWidgetInfo);
210
211        WidgetItem item = new WidgetItem(widgetInfo, getPackageManager(), mIdp);
212        mWidgetCell.getWidgetView().setTag(mPendingWidgetInfo);
213        mWidgetCell.applyFromCellItem(item, mApp.getWidgetCache());
214        mWidgetCell.ensurePreview();
215        return true;
216    }
217
218    /**
219     * Called when the cancel button is clicked.
220     */
221    public void onCancelClick(View v) {
222        logCommand(Action.Command.CANCEL);
223        finish();
224    }
225
226    /**
227     * Called when place-automatically button is clicked.
228     */
229    public void onPlaceAutomaticallyClick(View v) {
230        if (mRequest.getRequestType() == PinItemRequest.REQUEST_TYPE_SHORTCUT) {
231            InstallShortcutReceiver.queueShortcut(
232                    new ShortcutInfoCompat(mRequest.getShortcutInfo()), this);
233            logCommand(Action.Command.CONFIRM);
234            mRequest.accept();
235            finish();
236            return;
237        }
238
239        mPendingBindWidgetId = mAppWidgetHost.allocateAppWidgetId();
240        boolean success = mAppWidgetManager.bindAppWidgetIdIfAllowed(
241                mPendingBindWidgetId, mRequest.getAppWidgetProviderInfo(this), mWidgetOptions);
242        if (success) {
243            acceptWidget(mPendingBindWidgetId);
244            return;
245        }
246
247        // request bind widget
248        Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_BIND);
249        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mPendingBindWidgetId);
250        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER,
251                mPendingWidgetInfo.componentName);
252        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER_PROFILE,
253                mRequest.getAppWidgetProviderInfo(this).getProfile());
254        startActivityForResult(intent, REQUEST_BIND_APPWIDGET);
255    }
256
257    private void acceptWidget(int widgetId) {
258        InstallShortcutReceiver.queueWidget(mRequest.getAppWidgetProviderInfo(this), widgetId, this);
259        mWidgetOptions.putInt(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId);
260        mRequest.accept(mWidgetOptions);
261        logCommand(Action.Command.CONFIRM);
262        finish();
263    }
264
265    @Override
266    public void onBackPressed() {
267        logCommand(Action.Command.BACK);
268        super.onBackPressed();
269    }
270
271    @Override
272    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
273        if (requestCode == REQUEST_BIND_APPWIDGET) {
274            int widgetId = data != null
275                    ? data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mPendingBindWidgetId)
276                    : mPendingBindWidgetId;
277            if (resultCode == RESULT_OK) {
278                acceptWidget(widgetId);
279            } else {
280                // Simply wait it out.
281                mAppWidgetHost.deleteAppWidgetId(widgetId);
282                mPendingBindWidgetId = -1;
283            }
284            return;
285        }
286        super.onActivityResult(requestCode, resultCode, data);
287    }
288
289    @Override
290    protected void onSaveInstanceState(Bundle outState) {
291        super.onSaveInstanceState(outState);
292        outState.putInt(STATE_EXTRA_WIDGET_ID, mPendingBindWidgetId);
293    }
294
295    @Override
296    protected void onRestoreInstanceState(Bundle savedInstanceState) {
297        super.onRestoreInstanceState(savedInstanceState);
298        mPendingBindWidgetId = savedInstanceState
299                .getInt(STATE_EXTRA_WIDGET_ID, mPendingBindWidgetId);
300    }
301
302    private void logCommand(int command) {
303        getUserEventDispatcher().dispatchUserEvent(newLauncherEvent(
304                newCommandAction(command),
305                newItemTarget(mWidgetCell.getWidgetView()),
306                newContainerTarget(ContainerType.PINITEM)), null);
307    }
308}
309