From b09191e2fba2a495e032ddff87e562fdd8ea6eb3 Mon Sep 17 00:00:00 2001
From: Beloo <Awful.Vi@yandex.ru>
Date: Fri, 23 Dec 2016 15:29:30 +0200
Subject: [PATCH] * reverted clip-to-padding

---
 .idea/runConfigurations/functional_tests.xml  |  2 +-
 .../ChipsLayoutManager.java                   |  6 +-
 .../layouter/LTRRowsCreator.java              | 10 ++--
 .../layouter/LayouterFactory.java             |  1 -
 .../ChipsLayoutManagerTest.java               | 56 +++++++++++++++++++
 .../chipslayoutmanager/util/Action.java       | 32 +++++++++++
 .../util/RecyclerViewActionFactory.java       | 51 ++++++++++-------
 sample/src/main/res/layout/fragment_items.xml |  2 +-
 8 files changed, 129 insertions(+), 31 deletions(-)
 create mode 100644 sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/util/Action.java

diff --git a/.idea/runConfigurations/functional_tests.xml b/.idea/runConfigurations/functional_tests.xml
index 4a3fa12..bc1430c 100644
--- a/.idea/runConfigurations/functional_tests.xml
+++ b/.idea/runConfigurations/functional_tests.xml
@@ -1,5 +1,5 @@
 <component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="Functional tests" type="AndroidTestRunConfigurationType" factoryName="Android Instrumented Tests">
+  <configuration default="false" name="functional tests" type="AndroidTestRunConfigurationType" factoryName="Android Instrumented Tests">
     <module name="sample" />
     <option name="TESTING_TYPE" value="1" />
     <option name="INSTRUMENTATION_RUNNER_CLASS" value="android.support.test.runner.AndroidJUnitRunner" />
diff --git a/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/ChipsLayoutManager.java b/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/ChipsLayoutManager.java
index 27e54e6..d02605a 100644
--- a/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/ChipsLayoutManager.java
+++ b/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/ChipsLayoutManager.java
@@ -793,11 +793,11 @@ private void fill(RecyclerView.Recycler recycler, ILayouter backwardLayouter, IL
         /* there is no sense to perform backward layouting when anchor is null.
            null anchor means that layout will be performed from absolutely top corner with start at anchor position
         */
-        if (anchorView.getAnchorViewRect() != null) {
+//        if (anchorView.getAnchorViewRect() != null) {
             //up layouter should be invoked earlier than down layouter, because views with lower positions positioned above anchorView
             //start from anchor position
-            fillWithLayouter(recycler, backwardLayouter, startingPos - 1);
-        }
+        fillWithLayouter(recycler, backwardLayouter, startingPos - 1);
+//        }
 
         logger.onStartLayouter(startingPos);
 
diff --git a/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/layouter/LTRRowsCreator.java b/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/layouter/LTRRowsCreator.java
index aab8b9d..cfbc630 100644
--- a/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/layouter/LTRRowsCreator.java
+++ b/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/layouter/LTRRowsCreator.java
@@ -1,7 +1,6 @@
 package com.beloo.widget.chipslayoutmanager.layouter;
 
 import android.graphics.Rect;
-import android.support.annotation.NonNull;
 import android.support.v7.widget.RecyclerView;
 
 import com.beloo.widget.chipslayoutmanager.ChipsLayoutManager;
@@ -21,14 +20,13 @@ class LTRRowsCreator implements ILayouterCreator {
     }
 
     @Override
-    public Rect createOffsetRectForBackwardLayouter(@NonNull Rect anchorRect) {
-        //for backward layouting anchor can't be null, because it doesn't have sense
+    public Rect createOffsetRectForBackwardLayouter(Rect anchorRect) {
         return new Rect(
                 0,
-                anchorRect.top,
+                anchorRect == null ? layoutManager.getPaddingTop() : anchorRect.top,
                 //we shouldn't include anchor view here, so anchorLeft is a rightOffset
-                anchorRect.left,
-                anchorRect.bottom);
+                anchorRect == null ? layoutManager.getPaddingRight() : anchorRect.left,
+                anchorRect == null ? layoutManager.getPaddingBottom() : anchorRect.bottom);
     }
 
     @Override
diff --git a/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/layouter/LayouterFactory.java b/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/layouter/LayouterFactory.java
index 5a334fd..9dd23ad 100644
--- a/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/layouter/LayouterFactory.java
+++ b/ChipsLayoutManager/src/main/java/com/beloo/widget/chipslayoutmanager/layouter/LayouterFactory.java
@@ -81,7 +81,6 @@ private AbstractLayouter.Builder fillBasicBuilder(AbstractLayouter.Builder build
 
     @Nullable
     public final ILayouter getBackwardLayouter(Rect anchorRect) {
-        if (anchorRect == null) return null;
         return fillBasicBuilder(createBackwardBuilder())
                 .offsetRect(createOffsetRectForBackwardLayouter(anchorRect))
                 .breaker(breakerFactory.createBackwardRowBreaker())
diff --git a/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/ChipsLayoutManagerTest.java b/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/ChipsLayoutManagerTest.java
index d646a47..3afdaa8 100644
--- a/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/ChipsLayoutManagerTest.java
+++ b/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/ChipsLayoutManagerTest.java
@@ -3,17 +3,20 @@
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
 import android.support.test.InstrumentationRegistry;
+import android.support.test.espresso.UiController;
 import android.support.test.espresso.ViewAction;
 import android.support.test.espresso.ViewInteraction;
 import android.support.test.espresso.contrib.RecyclerViewActions;
 import android.support.test.rule.ActivityTestRule;
 import android.support.test.runner.AndroidJUnit4;
 import android.support.v7.widget.RecyclerView;
+import android.view.View;
 
 import com.beloo.chipslayoutmanager.sample.ui.LayoutManagerFactory;
 import com.beloo.chipslayoutmanager.sample.ui.ChipsFacade;
 import com.beloo.chipslayoutmanager.sample.ui.TestActivity;
 import com.beloo.chipslayoutmanager.sample.ui.adapter.ChipsAdapter;
+import com.beloo.widget.chipslayoutmanager.util.Action;
 import com.beloo.widget.chipslayoutmanager.util.InstrumentalUtil;
 
 import org.junit.Before;
@@ -33,6 +36,7 @@
 import static android.support.test.espresso.matcher.ViewMatchers.withId;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -73,6 +77,7 @@ public void setUp() throws Throwable {
         TestActivity.setLmFactory(layoutManagerFactory);
 
         activityTestRule.getActivity().initialize();
+
     }
 
     @Test
@@ -258,6 +263,57 @@ public void setAdapterTwice_ChipsLayoutManagerHaveSetToRecyclerView_NoException(
         assertNotEquals(RecyclerView.NO_POSITION, pos);
     }
 
+    @Test
+    public void clipToPadding_IsTrue_paddingStaySame() throws Exception {
+        //arrange
+        ViewInteraction recyclerView = onView(withId(R.id.rvTest)).check(matches(isDisplayed()));
+
+        ViewAction viewAction = new Action<RecyclerView>() {
+            @Override
+            public void performAction(UiController uiController, RecyclerView view) {
+                view.setClipToPadding(true);
+                view.setPadding(50, 50, 50, 50);
+                view.requestLayout();
+            }
+        };
+
+        //act
+        recyclerView.perform(viewAction);
+        recyclerView.perform(RecyclerViewActions.scrollToPosition(12));
+        InstrumentalUtil.waitForIdle();
+
+        //assert
+        View view = layoutManager.getChildAt(0);
+        int padding = layoutManager.getDecoratedTop(view);
+        assertEquals(50, padding);
+    }
+
+
+    @Test
+    public void clipToPadding_IsFalse_paddingOfScrolledViewIsLowerThanInitial() throws Exception {
+        //arrange
+        ViewInteraction recyclerView = onView(withId(R.id.rvTest)).check(matches(isDisplayed()));
+
+        ViewAction viewAction = new Action<RecyclerView>() {
+            @Override
+            public void performAction(UiController uiController, RecyclerView view) {
+                view.setClipToPadding(false);
+                view.setPadding(50, 50, 50, 50);
+                view.requestLayout();
+            }
+        };
+
+        //act
+        recyclerView.perform(viewAction);
+        recyclerView.perform(RecyclerViewActions.scrollToPosition(12));
+        InstrumentalUtil.waitForIdle();
+
+        //assert
+        View view = layoutManager.getChildAt(0);
+        int padding = layoutManager.getDecoratedTop(view);
+        assertTrue(padding < 0);
+    }
+
     @Ignore
     @Test
     public void deleteItem_ItemHasMaximumHeight_SamePadding() throws Exception {
diff --git a/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/util/Action.java b/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/util/Action.java
new file mode 100644
index 0000000..acf0ce9
--- /dev/null
+++ b/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/util/Action.java
@@ -0,0 +1,32 @@
+package com.beloo.widget.chipslayoutmanager.util;
+
+import android.support.test.espresso.UiController;
+import android.support.test.espresso.ViewAction;
+import android.view.View;
+
+import org.hamcrest.Matcher;
+
+import static android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static org.hamcrest.Matchers.allOf;
+
+public abstract class Action<T extends View> implements ViewAction {
+    @Override
+    public Matcher<View> getConstraints() {
+        return allOf(isAssignableFrom(View.class), isDisplayed());
+    }
+
+    @Override
+    public String getDescription() {
+        return "action " + this.getClass().getSimpleName();
+    }
+
+    @Override
+    public final void perform(UiController uiController, View view) {
+        performAction(uiController, (T) view);
+    }
+
+    public void performAction(UiController uiController, T view) {
+
+    }
+}
diff --git a/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/util/RecyclerViewActionFactory.java b/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/util/RecyclerViewActionFactory.java
index 8c2756c..89be700 100644
--- a/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/util/RecyclerViewActionFactory.java
+++ b/sample/src/androidTest/java/com/beloo/widget/chipslayoutmanager/util/RecyclerViewActionFactory.java
@@ -18,6 +18,10 @@
 import static org.hamcrest.Matchers.allOf;
 
 public class RecyclerViewActionFactory {
+    ///////////////////////////////////////////////////////////////////////////
+    // Actions factory
+    ///////////////////////////////////////////////////////////////////////////
+
     public ViewAction scrollBy(int x, int y) {
         return new ScrollByRecyclerViewAction(x, y);
     }
@@ -26,27 +30,29 @@ public ViewAction smoothScrollToPosition(int position) {
         return new SmoothScrollToPositionRecyclerViewAction(position);
     }
 
-
     public ViewAction setAdapter(RecyclerView.Adapter<? extends RecyclerView.ViewHolder> adapter) {
         return new SetAdapterAction(adapter);
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // Matcher factory
+    ///////////////////////////////////////////////////////////////////////////
+
     public Matcher<View> correctOrder() {
         return orderMatcher();
     }
 
-    private static final class SetAdapterAction implements ViewAction {
+    ///////////////////////////////////////////////////////////////////////////
+    // Actions
+    ///////////////////////////////////////////////////////////////////////////
+
+    private static final class SetAdapterAction extends RecyclerViewAction {
         private final RecyclerView.Adapter<? extends RecyclerView.ViewHolder> adapter;
 
         private SetAdapterAction(RecyclerView.Adapter<? extends RecyclerView.ViewHolder> adapter) {
             this.adapter = adapter;
         }
 
-        @Override
-        public Matcher<View> getConstraints() {
-            return allOf(isAssignableFrom(RecyclerView.class), isDisplayed());
-        }
-
         @Override
         public String getDescription() {
             return"set adapter to recycler view";
@@ -59,18 +65,13 @@ public void perform(UiController uiController, View view) {
         }
     }
 
-    private static final class SmoothScrollToPositionRecyclerViewAction implements ViewAction {
+    private static final class SmoothScrollToPositionRecyclerViewAction extends RecyclerViewAction {
         private final int position;
 
         private SmoothScrollToPositionRecyclerViewAction(int position) {
             this.position = position;
         }
 
-        @Override
-        public Matcher<View> getConstraints() {
-            return allOf(isAssignableFrom(RecyclerView.class), isDisplayed());
-        }
-
         @Override
         public String getDescription() {
             return String.format(Locale.getDefault(), "smooth scroll RecyclerView to position %d", position);
@@ -96,7 +97,7 @@ private synchronized void onScrollStateChanged(RecyclerView recyclerView, int ne
         }
     }
 
-    private static final class ScrollByRecyclerViewAction implements ViewAction {
+    private static final class ScrollByRecyclerViewAction extends RecyclerViewAction {
         private final int x;
         private final int y;
 
@@ -105,11 +106,6 @@ private ScrollByRecyclerViewAction(int x, int y) {
             this.y = y;
         }
 
-        @Override
-        public Matcher<View> getConstraints() {
-            return allOf(isAssignableFrom(RecyclerView.class), isDisplayed());
-        }
-
         @Override
         public String getDescription() {
             return String.format(Locale.getDefault(), "scroll RecyclerView with offsets: x = %d, y = %d ", x, y);
@@ -122,6 +118,23 @@ public void perform(UiController uiController, View view) {
         }
     }
 
+    private abstract static class RecyclerViewAction implements ViewAction {
+
+        @Override
+        public Matcher<View> getConstraints() {
+            return allOf(isAssignableFrom(RecyclerView.class), isDisplayed());
+        }
+
+        @Override
+        public String getDescription() {
+            return "RecyclerView action " + this.getClass().getSimpleName();
+        }
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Matcher
+    ///////////////////////////////////////////////////////////////////////////
+
     private Matcher<View> orderMatcher() {
         return new TypeSafeMatcher<View>() {
             @Override
diff --git a/sample/src/main/res/layout/fragment_items.xml b/sample/src/main/res/layout/fragment_items.xml
index d19f530..62cb044 100644
--- a/sample/src/main/res/layout/fragment_items.xml
+++ b/sample/src/main/res/layout/fragment_items.xml
@@ -12,7 +12,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_above="@+id/bottomContainer"
-        android:padding="12dp"
+        android:padding="50dp"
         android:clipToPadding="false"
         />