[SuwLib] Position card correctly when keyboard is up

When the keyboard is shown in the tablet layout, position the card
correctly by using linear layout with 2 invisible weighted views.

Bug: 29420837
Change-Id: I85008800f16a4a8c6b7b2f8f78d702ac5674434a

library/full-support/res/layout/suw_glif_recycler_template_card.xml

@@ -15,21 +15,35 @@
     limitations under the License.
 -->
 
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/suw_pattern_bg"
     style="@style/SuwGlifCardBackground"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:fitsSystemWindows="true">
+    android:fitsSystemWindows="true"
+    android:gravity="center_horizontal"
+    android:orientation="vertical">
 
-    <FrameLayout
+    <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:visibility="invisible" />
+
+    <com.android.setupwizardlib.view.IntrinsicSizeFrameLayout
         style="@style/SuwGlifCardContainer"
         android:layout_width="@dimen/suw_glif_card_width"
-        android:layout_height="@dimen/suw_glif_card_height"
-        android:layout_centerInParent="true">
+        android:layout_height="wrap_content"
+        android:height="@dimen/suw_glif_card_height">
 
         <include layout="@layout/suw_glif_recycler_template_content" />
 
-    </FrameLayout>
+    </com.android.setupwizardlib.view.IntrinsicSizeFrameLayout>
 
-</RelativeLayout>
+    <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:visibility="invisible" />
+
+</LinearLayout>

library/main/res/layout/suw_glif_blank_template_card.xml

@@ -15,18 +15,32 @@
     limitations under the License.
 -->
 
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/suw_pattern_bg"
     style="@style/SuwGlifCardBackground"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:fitsSystemWindows="true">
+    android:fitsSystemWindows="true"
+    android:gravity="center_horizontal"
+    android:orientation="vertical">
 
-    <FrameLayout
+    <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:visibility="invisible" />
+
+    <com.android.setupwizardlib.view.IntrinsicSizeFrameLayout
         android:id="@+id/suw_layout_content"
         style="@style/SuwGlifCardContainer"
         android:layout_width="@dimen/suw_glif_card_width"
-        android:layout_height="@dimen/suw_glif_card_height"
-        android:layout_centerInParent="true" />
+        android:layout_height="wrap_content"
+        android:height="@dimen/suw_glif_card_height" />
 
-</RelativeLayout>
+    <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:visibility="invisible" />
+
+</LinearLayout>

library/main/res/layout/suw_glif_list_template_card.xml

@@ -15,21 +15,35 @@
     limitations under the License.
 -->
 
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/suw_pattern_bg"
     style="@style/SuwGlifCardBackground"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:fitsSystemWindows="true">
+    android:fitsSystemWindows="true"
+    android:gravity="center_horizontal"
+    android:orientation="vertical">
 
-    <FrameLayout
+    <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:visibility="invisible" />
+
+    <com.android.setupwizardlib.view.IntrinsicSizeFrameLayout
         style="@style/SuwGlifCardContainer"
         android:layout_width="@dimen/suw_glif_card_width"
-        android:layout_height="@dimen/suw_glif_card_height"
-        android:layout_centerInParent="true">
+        android:layout_height="wrap_content"
+        android:height="@dimen/suw_glif_card_height">
 
         <include layout="@layout/suw_glif_list_template_content" />
 
-    </FrameLayout>
+    </com.android.setupwizardlib.view.IntrinsicSizeFrameLayout>
 
-</RelativeLayout>
+    <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:visibility="invisible" />
+
+</LinearLayout>

library/main/res/layout/suw_glif_template_card.xml

@@ -15,22 +15,35 @@
     limitations under the License.
 -->
 
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/suw_pattern_bg"
     style="@style/SuwGlifCardBackground"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:fitsSystemWindows="true">
+    android:fitsSystemWindows="true"
+    android:gravity="center_horizontal"
+    android:orientation="vertical">
 
-    <FrameLayout
+    <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:visibility="invisible" />
+
+    <com.android.setupwizardlib.view.IntrinsicSizeFrameLayout
         style="@style/SuwGlifCardContainer"
         android:layout_width="@dimen/suw_glif_card_width"
-        android:layout_height="@dimen/suw_glif_card_height"
-        android:layout_centerInParent="true">
+        android:layout_height="wrap_content"
+        android:height="@dimen/suw_glif_card_height">
 
         <include layout="@layout/suw_glif_template_content" />
 
-    </FrameLayout>
+    </com.android.setupwizardlib.view.IntrinsicSizeFrameLayout>
 
+    <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:visibility="invisible" />
 
-</RelativeLayout>
+</LinearLayout>

library/main/res/values/attrs.xml

@@ -66,6 +66,11 @@
         <attr name="suwStatusBarBackground" format="color|reference" />
     </declare-styleable>
 
+    <declare-styleable name="SuwMaxSizeFrameLayout">
+        <attr name="android:height" />
+        <attr name="android:width" />
+    </declare-styleable>
+
     <declare-styleable name="SuwSetupWizardLayout">
         <attr name="suwBackground" format="color|reference" />
         <attr name="suwBackgroundTile" format="color|reference" />

library/main/src/com/android/setupwizardlib/view/IntrinsicSizeFrameLayout.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2016 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.setupwizardlib.view;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.os.Build.VERSION_CODES;
+import android.util.AttributeSet;
+import android.widget.FrameLayout;
+
+import com.android.setupwizardlib.R;
+
+/**
+ * A FrameLayout subclass that has an "intrinsic size", which is the size it wants to be if that is
+ * within the constraints given by the parent. The intrinsic size can be set with the
+ * {@code android:width} and {@code android:height} attributes in XML.
+ *
+ * Note that for the intrinsic size to be meaningful, {@code android:layout_width} and/or
+ * {@code android:layout_height} will need to be {@code wrap_content}.
+ */
+public class IntrinsicSizeFrameLayout extends FrameLayout {
+
+    private int mIntrinsicHeight = 0;
+    private int mIntrinsicWidth = 0;
+
+    public IntrinsicSizeFrameLayout(Context context) {
+        super(context);
+        init(context, null, 0);
+    }
+
+    public IntrinsicSizeFrameLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init(context, attrs, 0);
+    }
+
+    @TargetApi(VERSION_CODES.HONEYCOMB)
+    public IntrinsicSizeFrameLayout(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init(context, attrs, defStyleAttr);
+    }
+
+    private void init(Context context, AttributeSet attrs, int defStyleAttr) {
+        final TypedArray a = context.obtainStyledAttributes(attrs,
+                R.styleable.SuwMaxSizeFrameLayout, defStyleAttr, 0);
+        mIntrinsicHeight =
+                a.getDimensionPixelSize(R.styleable.SuwMaxSizeFrameLayout_android_height, 0);
+        mIntrinsicWidth =
+                a.getDimensionPixelSize(R.styleable.SuwMaxSizeFrameLayout_android_width, 0);
+        a.recycle();
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(getIntrinsicMeasureSpec(widthMeasureSpec, mIntrinsicWidth),
+                getIntrinsicMeasureSpec(heightMeasureSpec, mIntrinsicHeight));
+    }
+
+    private int getIntrinsicMeasureSpec(int measureSpec, int intrinsicSize) {
+        if (intrinsicSize <= 0) {
+            // Intrinsic size is not set, just return the original spec
+            return measureSpec;
+        }
+        final int mode = MeasureSpec.getMode(measureSpec);
+        final int size = MeasureSpec.getSize(measureSpec);
+        if (mode == MeasureSpec.UNSPECIFIED) {
+            // Parent did not give any constraint, so we'll be the intrinsic size
+            return MeasureSpec.makeMeasureSpec(mIntrinsicHeight, MeasureSpec.EXACTLY);
+        } else if (mode == MeasureSpec.AT_MOST) {
+            // If intrinsic size is within parents constraint, take the intrinsic size.
+            // Otherwise take the parents size because that's closest to the intrinsic size.
+            return MeasureSpec.makeMeasureSpec(Math.min(size, mIntrinsicHeight),
+                    MeasureSpec.EXACTLY);
+        }
+        // Parent specified EXACTLY, or in all other cases, just return the original spec
+        return measureSpec;
+    }
+}