1 package com.android.launcher3;
2 
3 import android.annotation.TargetApi;
4 import android.appwidget.AppWidgetHostView;
5 import android.appwidget.AppWidgetProviderInfo;
6 import android.content.ComponentName;
7 import android.content.Context;
8 import android.content.pm.PackageManager;
9 import android.graphics.Point;
10 import android.graphics.Rect;
11 import android.graphics.drawable.Drawable;
12 import android.os.Build;
13 import android.os.Parcel;
14 
15 /**
16  * This class is a thin wrapper around the framework AppWidgetProviderInfo class. This class affords
17  * a common object for describing both framework provided AppWidgets as well as custom widgets
18  * (who's implementation is owned by the launcher). This object represents a widget type / class,
19  * as opposed to a widget instance, and so should not be confused with {@link LauncherAppWidgetInfo}
20  */
21 public class LauncherAppWidgetProviderInfo extends AppWidgetProviderInfo {
22 
23     public boolean isCustomWidget = false;
24 
25     public int spanX;
26     public int spanY;
27     public int minSpanX;
28     public int minSpanY;
29 
fromProviderInfo(Context context, AppWidgetProviderInfo info)30     public static LauncherAppWidgetProviderInfo fromProviderInfo(Context context,
31             AppWidgetProviderInfo info) {
32 
33         // In lieu of a public super copy constructor, we first write the AppWidgetProviderInfo
34         // into a parcel, and then construct a new LauncherAppWidgetProvider info from the
35         // associated super parcel constructor. This allows us to copy non-public members without
36         // using reflection.
37         Parcel p = Parcel.obtain();
38         info.writeToParcel(p, 0);
39         p.setDataPosition(0);
40         LauncherAppWidgetProviderInfo lawpi = new LauncherAppWidgetProviderInfo(p);
41         p.recycle();
42         return lawpi;
43     }
44 
LauncherAppWidgetProviderInfo(Parcel in)45     public LauncherAppWidgetProviderInfo(Parcel in) {
46         super(in);
47         initSpans();
48     }
49 
LauncherAppWidgetProviderInfo(Context context, CustomAppWidget widget)50     public LauncherAppWidgetProviderInfo(Context context, CustomAppWidget widget) {
51         isCustomWidget = true;
52 
53         provider = new ComponentName(context, widget.getClass().getName());
54         icon = widget.getIcon();
55         label = widget.getLabel();
56         previewImage = widget.getPreviewImage();
57         initialLayout = widget.getWidgetLayout();
58         resizeMode = widget.getResizeMode();
59         initSpans();
60     }
61 
initSpans()62     public void initSpans() {
63         LauncherAppState app = LauncherAppState.getInstance();
64         InvariantDeviceProfile idp = app.getInvariantDeviceProfile();
65 
66         // We only care out the cell size, which is independent of the the layout direction.
67         Rect paddingLand = idp.landscapeProfile.getWorkspacePadding(false /* isLayoutRtl */);
68         Rect paddingPort = idp.portraitProfile.getWorkspacePadding(false /* isLayoutRtl */);
69 
70         // Always assume we're working with the smallest span to make sure we
71         // reserve enough space in both orientations.
72         float smallestCellWidth = DeviceProfile.calculateCellWidth(Math.min(
73                 idp.landscapeProfile.widthPx - paddingLand.left - paddingLand.right,
74                 idp.portraitProfile.widthPx - paddingPort.left - paddingPort.right),
75                 idp.numColumns);
76         float smallestCellHeight = DeviceProfile.calculateCellWidth(Math.min(
77                 idp.landscapeProfile.heightPx - paddingLand.top - paddingLand.bottom,
78                 idp.portraitProfile.heightPx - paddingPort.top - paddingPort.bottom),
79                 idp.numRows);
80 
81         // We want to account for the extra amount of padding that we are adding to the widget
82         // to ensure that it gets the full amount of space that it has requested.
83         Rect widgetPadding = AppWidgetHostView.getDefaultPaddingForWidget(
84                 app.getContext(), provider, null);
85         spanX = Math.max(1, (int) Math.ceil(
86                         (minWidth + widgetPadding.left + widgetPadding.right) / smallestCellWidth));
87         spanY = Math.max(1, (int) Math.ceil(
88                 (minHeight + widgetPadding.top + widgetPadding.bottom) / smallestCellHeight));
89 
90         minSpanX = Math.max(1, (int) Math.ceil(
91                 (minResizeWidth + widgetPadding.left + widgetPadding.right) / smallestCellWidth));
92         minSpanY = Math.max(1, (int) Math.ceil(
93                 (minResizeHeight + widgetPadding.top + widgetPadding.bottom) / smallestCellHeight));
94     }
95 
96     @TargetApi(Build.VERSION_CODES.LOLLIPOP)
getLabel(PackageManager packageManager)97     public String getLabel(PackageManager packageManager) {
98         if (isCustomWidget) {
99             return Utilities.trim(label);
100         }
101         return super.loadLabel(packageManager);
102     }
103 
104     @TargetApi(Build.VERSION_CODES.LOLLIPOP)
getIcon(Context context, IconCache cache)105     public Drawable getIcon(Context context, IconCache cache) {
106         if (isCustomWidget) {
107             return cache.getFullResIcon(provider.getPackageName(), icon);
108         }
109         return super.loadIcon(context,
110                 LauncherAppState.getInstance().getInvariantDeviceProfile().fillResIconDpi);
111     }
112 
toString(PackageManager pm)113     public String toString(PackageManager pm) {
114         if (isCustomWidget) {
115             return "WidgetProviderInfo(" + provider + ")";
116         }
117         return String.format("WidgetProviderInfo provider:%s package:%s short:%s label:%s",
118                 provider.toString(), provider.getPackageName(), provider.getShortClassName(), getLabel(pm));
119     }
120 
getMinSpans(InvariantDeviceProfile idp, Context context)121     public Point getMinSpans(InvariantDeviceProfile idp, Context context) {
122         return new Point(
123                 (resizeMode & RESIZE_HORIZONTAL) != 0 ? minSpanX : -1,
124                         (resizeMode & RESIZE_VERTICAL) != 0 ? minSpanY : -1);
125     }
126  }
127