Adding support to restore widgets even for jelly beans.

> Show 'widget-not-ready' until the widget app is installed
> Once the app is installed, bind a new widget id (not required on L if
  id-remap was received).
  **Remove the widget if bind failed
> If the widget has no configuration screen, show the widget, otherwise
  show 'setup-widget'.
> Clicking 'setup-widget' shows the config screen, and updates the
  widget on RESULT_OK.

issue: 10779035

Change-Id: I2f8b06d09dd6acbc498cdd93edc59c26e5ce17af

1 files changed, 78 insertions, 0 deletions

diff --git a/src/com/android/launcher3/PendingAppWidgetHostView.java b/src/com/android/launcher3/PendingAppWidgetHostView.java
new file mode 100644
index 000000000..048e9f8c3
--- /dev/null
+++ b/src/com/android/launcher3/PendingAppWidgetHostView.java
@@ -0,0 +1,78 @@
+package com.android.launcher3;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.TextView;
+
+public class PendingAppWidgetHostView extends LauncherAppWidgetHostView implements OnClickListener {
+
+    int mRestoreStatus;
+
+    private TextView mDefaultView;
+    private OnClickListener mClickListener;
+
+    public PendingAppWidgetHostView(Context context, int restoreStatus) {
+        super(context);
+        mRestoreStatus = restoreStatus;
+    }
+
+    @Override
+    public void updateAppWidgetSize(Bundle newOptions, int minWidth, int minHeight, int maxWidth,
+            int maxHeight) {
+        // No-op
+    }
+
+    @Override
+    protected View getDefaultView() {
+        if (mDefaultView == null) {
+            mDefaultView = (TextView) mInflater.inflate(R.layout.appwidget_not_ready, this, false);
+            mDefaultView.setOnClickListener(this);
+            applyState();
+        }
+        return mDefaultView;
+    }
+
+    @Override
+    public void setOnClickListener(OnClickListener l) {
+        mClickListener = l;
+    }
+
+    public void setStatus(int status) {
+        if (mRestoreStatus != status) {
+            mRestoreStatus = status;
+            applyState();
+        }
+    }
+
+    @Override
+    public boolean isReinflateRequired() {
+        // Re inflate is required if the the widget is restored.
+        return mRestoreStatus == LauncherAppWidgetInfo.RESTORE_COMPLETED;
+    }
+
+    private void applyState() {
+        if (mDefaultView != null) {
+            if (isReadyForClickSetup()) {
+                mDefaultView.setText(R.string.gadget_setup_text);
+            } else {
+                mDefaultView.setText(R.string.gadget_pending_text);
+            }
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        // AppWidgetHostView blocks all click events on the root view. Instead handle click events
+        // on the content and pass it along.
+        if (mClickListener != null) {
+            mClickListener.onClick(this);
+        }
+    }
+
+    public boolean isReadyForClickSetup() {
+        return (mRestoreStatus & LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY) == 0
+                && (mRestoreStatus & LauncherAppWidgetInfo.FLAG_UI_NOT_READY) != 0;
+    }
+}