migrate custom widgets in comply with plugin framework

Bug: 139888225
Change-Id: I8a3d0fe2689ad5ba24b19309728bbad0b6287f71
Merged-In: I8a3d0fe2689ad5ba24b19309728bbad0b6287f71
(cherry picked from commit c7a6c2979cc063dd493316d0d19cbc0501a23a64)

1 files changed, 72 insertions, 0 deletions

diff --git a/src_plugins/com/android/systemui/plugins/CustomWidgetPlugin.java b/src_plugins/com/android/systemui/plugins/CustomWidgetPlugin.java
new file mode 100644
index 000000000..47aa94b40
--- /dev/null
+++ b/src_plugins/com/android/systemui/plugins/CustomWidgetPlugin.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.plugins;
+
+import android.appwidget.AppWidgetHostView;
+import android.content.Context;
+
+import com.android.systemui.plugins.annotations.ProvidesInterface;
+
+/**
+ * Implement this plugin interface to add a custom widget.
+ */
+@ProvidesInterface(action = CustomWidgetPlugin.ACTION, version = CustomWidgetPlugin.VERSION)
+public interface CustomWidgetPlugin extends Plugin {
+
+    String ACTION = "com.android.systemui.action.PLUGIN_CUSTOM_WIDGET";
+    int VERSION = 1;
+
+    /**
+     * The label to display to the user in the AppWidget picker.
+     */
+    String getLabel(Context context);
+
+    /**
+     * The default width of the widget when added to a host, in dp. The widget will get
+     * at least this width, and will often be given more, depending on the host.
+     */
+    int getSpanX(Context context);
+
+    /**
+     * The default height of the widget when added to a host, in dp. The widget will get
+     * at least this height, and will often be given more, depending on the host.
+     */
+    int getSpanY(Context context);
+
+    /**
+     * Minimum width (in dp) which the widget can be resized to. This field has no effect if it
+     * is greater than minWidth or if horizontal resizing isn't enabled.
+     */
+    int getMinSpanX(Context context);
+
+    /**
+     * Minimum height (in dp) which the widget can be resized to. This field has no effect if it
+     * is greater than minHeight or if vertical resizing isn't enabled.
+     */
+    int getMinSpanY(Context context);
+
+    /**
+     * The rules by which a widget can be resized.
+     */
+    int getResizeMode(Context context);
+
+    /**
+     * Notify the plugin that container of the widget has been rendered, where the custom widget
+     * can be attached to.
+     */
+    void onViewCreated(Context context, AppWidgetHostView parent);
+}