Remove unused hints code.

This layout is handled by the provider of the hints now.

Bug: 132886768
Test: manual
Change-Id: Ifc0db2395a7503b1b03dcb796961ef6647c0413b
(cherry picked from commit f3231f417db08185ec204b247d331dba6a9b0383)
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
index 1d36d1a..b5d8424 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -32,7 +32,6 @@
 import com.android.launcher3.LauncherStateManager.AnimationConfig;
 import com.android.launcher3.anim.AnimatorSetBuilder;
 import com.android.launcher3.anim.PropertySetter;
-import com.android.quickstep.hints.ProactiveHintsContainer;
 import com.android.quickstep.views.ClearAllButton;
 import com.android.quickstep.views.LauncherRecentsView;
 import com.android.quickstep.views.RecentsView;
@@ -55,14 +54,6 @@
         if (state.overviewUi) {
             mRecentsView.updateEmptyMessage();
             mRecentsView.resetTaskVisuals();
-            mRecentsView.setHintVisibility(1f);
-        } else {
-            mRecentsView.setHintVisibility(0f);
-            ProactiveHintsContainer
-                    proactiveHintsContainer = mRecentsView.getProactiveHintsContainer();
-            if (proactiveHintsContainer != null) {
-                proactiveHintsContainer.removeAllViews();
-            }
         }
         setAlphas(PropertySetter.NO_ANIM_PROPERTY_SETTER, state.getVisibleElements(mLauncher));
         mRecentsView.setFullscreenProgress(state.getOverviewFullscreenProgress());
@@ -75,14 +66,6 @@
 
         if (!toState.overviewUi) {
             builder.addOnFinishRunnable(mRecentsView::resetTaskVisuals);
-            mRecentsView.setHintVisibility(0f);
-            builder.addOnFinishRunnable(() -> {
-                ProactiveHintsContainer
-                        proactiveHintsContainer = mRecentsView.getProactiveHintsContainer();
-                if (proactiveHintsContainer != null) {
-                    proactiveHintsContainer.removeAllViews();
-                }
-            });
         }
 
         if (toState.overviewUi) {
@@ -94,7 +77,6 @@
             updateAnim.setDuration(config.duration);
             builder.play(updateAnim);
             mRecentsView.updateEmptyMessage();
-            builder.addOnFinishRunnable(() -> mRecentsView.setHintVisibility(1f));
         }
 
         PropertySetter propertySetter = config.getPropertySetter(builder);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/HintUtil.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/HintUtil.java
deleted file mode 100644
index f2d40ec..0000000
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/HintUtil.java
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * 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.quickstep.hints;
-
-import android.app.PendingIntent;
-import android.graphics.drawable.Icon;
-import android.os.Bundle;
-
-public final class HintUtil {
-
-    public static final String ID_KEY = "id";
-    public static final String ICON_KEY = "icon";
-    public static final String TEXT_KEY = "text";
-    public static final String TAP_ACTION_KEY = "tap_action";
-
-    private HintUtil() {}
-
-    public static Bundle makeHint(String id, Icon icon, CharSequence text) {
-        Bundle hint = new Bundle();
-        hint.putString(ID_KEY, id);
-        hint.putParcelable(ICON_KEY, icon);
-        hint.putCharSequence(TEXT_KEY, text);
-        return hint;
-    }
-
-    public static Bundle makeHint(Icon icon, CharSequence text, PendingIntent tapAction) {
-        Bundle hint = new Bundle();
-        hint.putParcelable(ICON_KEY, icon);
-        hint.putCharSequence(TEXT_KEY, text);
-        hint.putParcelable(TAP_ACTION_KEY, tapAction);
-        return hint;
-    }
-
-    public static String getId(Bundle hint) {
-        String id = hint.getString(ID_KEY);
-        if (id == null) {
-            throw new IllegalArgumentException("Hint does not contain an ID");
-        }
-        return id;
-    }
-
-    public static Icon getIcon(Bundle hint) {
-        Icon icon = hint.getParcelable(ICON_KEY);
-        if (icon == null) {
-            throw new IllegalArgumentException("Hint does not contain an icon");
-        }
-        return icon;
-    }
-
-    public static CharSequence getText(Bundle hint) {
-        CharSequence text = hint.getCharSequence(TEXT_KEY);
-        if (text == null) {
-            throw new IllegalArgumentException("Hint does not contain text");
-        }
-        return text;
-    }
-
-    public static PendingIntent getTapAction(Bundle hint) {
-        PendingIntent tapAction = hint.getParcelable(TAP_ACTION_KEY);
-        if (tapAction == null) {
-            throw new IllegalArgumentException("Hint does not contain a tap action");
-        }
-        return tapAction;
-    }
-}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/HintView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/HintView.java
deleted file mode 100644
index 5399cc4..0000000
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/HintView.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * 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.quickstep.hints;
-
-import static com.android.quickstep.hints.HintUtil.getIcon;
-import static com.android.quickstep.hints.HintUtil.getText;
-
-import android.content.Context;
-import android.graphics.drawable.Icon;
-import android.os.Bundle;
-import android.util.AttributeSet;
-import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-
-import androidx.annotation.Nullable;
-
-import com.android.launcher3.R;
-
-public class HintView extends LinearLayout {
-    private ImageView mIconView;
-    private TextView mLabelView;
-
-    public HintView(Context context) {
-        super(context);
-    }
-
-    public HintView(Context context, @Nullable AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    public HintView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
-        super(context, attrs, defStyleAttr);
-    }
-
-    public HintView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
-        super(context, attrs, defStyleAttr, defStyleRes);
-    }
-
-    public void setHint(Bundle hint) {
-        mLabelView.setText(getText(hint));
-
-        Icon icon = getIcon(hint);
-        if (icon == null) {
-            mIconView.setVisibility(GONE);
-        } else {
-            mIconView.setImageIcon(icon);
-            mIconView.setVisibility(VISIBLE);
-        }
-    }
-
-    @Override
-    protected void onFinishInflate() {
-        super.onFinishInflate();
-        mIconView = findViewById(R.id.icon);
-        mLabelView = findViewById(R.id.label);
-    }
-}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/ProactiveHintsContainer.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/ProactiveHintsContainer.java
deleted file mode 100644
index 74a4851..0000000
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/ProactiveHintsContainer.java
+++ /dev/null
@@ -1,55 +0,0 @@
-package com.android.quickstep.hints;
-
-import android.content.Context;
-import android.util.AttributeSet;
-import android.util.FloatProperty;
-import android.view.View;
-import android.widget.FrameLayout;
-
-public class ProactiveHintsContainer extends FrameLayout {
-
-  public static final FloatProperty<ProactiveHintsContainer> HINT_VISIBILITY =
-      new FloatProperty<ProactiveHintsContainer>("hint_visibility") {
-        @Override
-        public void setValue(ProactiveHintsContainer proactiveHintsContainer, float v) {
-          proactiveHintsContainer.setHintVisibility(v);
-        }
-
-        @Override
-        public Float get(ProactiveHintsContainer proactiveHintsContainer) {
-          return proactiveHintsContainer.mHintVisibility;
-        }
-      };
-
-  private float mHintVisibility;
-
-  public ProactiveHintsContainer(Context context) {
-    super(context);
-  }
-
-  public ProactiveHintsContainer(Context context, AttributeSet attrs) {
-    super(context, attrs);
-  }
-
-  public ProactiveHintsContainer(Context context, AttributeSet attrs, int defStyleAttr) {
-    super(context, attrs, defStyleAttr);
-  }
-
-  public ProactiveHintsContainer(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
-    super(context, attrs, defStyleAttr, defStyleRes);
-  }
-
-  public void setView(View v) {
-    removeAllViews();
-    addView(v);
-  }
-
-  public void setHintVisibility(float v) {
-    if (v == 1) {
-      setVisibility(VISIBLE);
-    } else {
-      setVisibility(GONE);
-    }
-    mHintVisibility = v;
-  }
-}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/UiHintListenerConstants.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/UiHintListenerConstants.java
deleted file mode 100644
index 420033d..0000000
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/UiHintListenerConstants.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * 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.quickstep.hints;
-
-public final class UiHintListenerConstants {
-
-    private UiHintListenerConstants() {}
-
-    // Operations
-    public static final int ON_HINTS_RETURNED_CODE = 5;
-
-    // Keys
-    public static final String SESSION_ID_KEY = "session_id";
-    public static final String HINTS_KEY = "hints";
-}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/UiInterfaceConstants.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/UiInterfaceConstants.java
deleted file mode 100644
index 0140613..0000000
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/hints/UiInterfaceConstants.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * 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.quickstep.hints;
-
-public final class UiInterfaceConstants {
-
-    private UiInterfaceConstants() {}
-
-    // Operations
-    public static final int ON_HINT_TAP_CODE = 4;
-
-    public static final int REQUEST_HINTS_CODE = 7;
-
-    // Keys
-    public static final String SESSION_ID_KEY = "session_id";
-    public static final String HINT_ID_KEY = "hint_id";
-    public static final String WIDTH_PX_KEY = "width_px";
-    public static final String HEIGHT_PX_KEY = "height_px";
-    public static final String HINT_SPACE_WIDTH_PX_KEY = "hint_space_width_px";
-    public static final String HINT_SPACE_HEIGHT_PX_KEY = "hint_space_height_px";
-}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
index 4162845..8ad5f27 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -35,8 +35,6 @@
 import android.util.AttributeSet;
 import android.view.View;
 
-import androidx.annotation.Nullable;
-
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
@@ -45,11 +43,8 @@
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.appprediction.PredictionUiStateManager;
 import com.android.launcher3.appprediction.PredictionUiStateManager.Client;
-import com.android.launcher3.util.PendingAnimation;
-import com.android.launcher3.views.BaseDragLayer;
 import com.android.launcher3.views.ScrimView;
 import com.android.quickstep.SysUINavigationMode;
-import com.android.quickstep.hints.ProactiveHintsContainer;
 import com.android.quickstep.util.ClipAnimationHelper;
 import com.android.quickstep.util.ClipAnimationHelper.TransformParams;
 import com.android.quickstep.util.LayoutUtils;
@@ -61,8 +56,6 @@
 public class LauncherRecentsView extends RecentsView<Launcher> implements StateListener {
 
     private final TransformParams mTransformParams = new TransformParams();
-    private final int mChipOverhang;
-    @Nullable private ProactiveHintsContainer mProactiveHintsContainer;
 
     public LauncherRecentsView(Context context) {
         this(context, null);
@@ -75,20 +68,10 @@
     public LauncherRecentsView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         setContentAlpha(0);
-        mChipOverhang = (int) context.getResources().getDimension(R.dimen.chip_hint_overhang);
         mActivity.getStateManager().addStateListener(this);
     }
 
     @Override
-    protected void onAttachedToWindow() {
-        super.onAttachedToWindow();
-        View hintContainer = mActivity.findViewById(R.id.hints);
-        mProactiveHintsContainer =
-                hintContainer instanceof ProactiveHintsContainer
-                        ? (ProactiveHintsContainer) hintContainer : null;
-    }
-
-    @Override
     public void startHome() {
         mActivity.getStateManager().goToState(NORMAL);
     }
@@ -104,11 +87,6 @@
         }
     }
 
-    @Nullable
-    public ProactiveHintsContainer getProactiveHintsContainer() {
-        return mProactiveHintsContainer;
-    }
-
     @Override
     public void draw(Canvas canvas) {
         maybeDrawEmptyMessage(canvas);
@@ -162,23 +140,6 @@
     @Override
     protected void getTaskSize(DeviceProfile dp, Rect outRect) {
         LayoutUtils.calculateLauncherTaskSize(getContext(), dp, outRect);
-        if (mProactiveHintsContainer != null) {
-            BaseDragLayer.LayoutParams params = (BaseDragLayer.LayoutParams) mProactiveHintsContainer.getLayoutParams();
-            params.bottomMargin = getHeight() - outRect.bottom - mChipOverhang;
-            params.width = outRect.width();
-        }
-    }
-
-    @Override
-    public PendingAnimation createTaskLauncherAnimation(TaskView tv, long duration) {
-        PendingAnimation anim = super.createTaskLauncherAnimation(tv, duration);
-
-        if (mProactiveHintsContainer != null) {
-            anim.anim.play(ObjectAnimator.ofFloat(
-                    mProactiveHintsContainer, ProactiveHintsContainer.HINT_VISIBILITY, 0));
-        }
-
-        return anim;
     }
 
     @Override
@@ -197,31 +158,6 @@
     }
 
     @Override
-    public PendingAnimation createTaskDismissAnimation(TaskView taskView, boolean animateTaskView,
-            boolean shouldRemoveTask, long duration) {
-        PendingAnimation anim = super.createTaskDismissAnimation(taskView, animateTaskView,
-                shouldRemoveTask, duration);
-
-        if (mProactiveHintsContainer != null) {
-            anim.anim.play(ObjectAnimator.ofFloat(
-                    mProactiveHintsContainer, ProactiveHintsContainer.HINT_VISIBILITY, 0));
-            anim.addEndListener(onEndListener -> {
-                if (!onEndListener.isSuccess) {
-                    mProactiveHintsContainer.setHintVisibility(1);
-                }
-            });
-        }
-
-        return anim;
-    }
-
-    public void setHintVisibility(float v) {
-        if (mProactiveHintsContainer != null) {
-            mProactiveHintsContainer.setHintVisibility(v);
-        }
-    }
-
-    @Override
     protected void onTaskLaunched(boolean success) {
         if (success) {
             mActivity.getStateManager().goToState(NORMAL, false /* animate */);
diff --git a/res/layout/launcher.xml b/res/layout/launcher.xml
index 9cab9c2..cca899b 100644
--- a/res/layout/launcher.xml
+++ b/res/layout/launcher.xml
@@ -48,11 +48,6 @@
             layout="@layout/overview_panel"
             android:visibility="gone" />
 
-        <include
-            android:id="@+id/hints"
-            layout="@layout/proactive_hints_container"
-            android:visibility="gone"/>
-
         <!-- Keep these behind the workspace so that they are not visible when
          we go into AllApps -->
         <com.android.launcher3.pageindicators.WorkspacePageIndicator
diff --git a/res/layout/proactive_hints_container.xml b/res/layout/proactive_hints_container.xml
deleted file mode 100644
index 2637f03..0000000
--- a/res/layout/proactive_hints_container.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-     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.
--->
-<Space
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="0dp"
-    android:layout_height="0dp" />
\ No newline at end of file
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 0da56da..4bcb8a7 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -232,11 +232,6 @@
     <dimen name="snackbar_min_text_size">12sp</dimen>
     <dimen name="snackbar_max_text_size">14sp</dimen>
 
-<!-- Hints -->
-    <dimen name="chip_hint_height">26dp</dimen>
-    <dimen name="chip_hint_bottom_margin">194dp</dimen>
-    <dimen name="chip_hint_overhang">15dp</dimen>
-
 <!-- Theming related -->
     <dimen name="default_dialog_corner_radius">8dp</dimen>
 
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index c1f898c..883e8c6 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -99,10 +99,6 @@
     public int folderChildTextSizePx;
     public int folderChildDrawablePaddingPx;
 
-    // Hints
-    public int chipHintHeightPx;
-    public int chipHintBottomMarginPx;
-
     // Hotseat
     public int hotseatCellHeightPx;
     // In portrait: size = height, in landscape: size = width
@@ -200,9 +196,6 @@
 
         workspaceCellPaddingXPx = res.getDimensionPixelSize(R.dimen.dynamic_grid_cell_padding_x);
 
-        chipHintHeightPx = res.getDimensionPixelSize(R.dimen.chip_hint_height);
-        chipHintBottomMarginPx = res.getDimensionPixelSize(R.dimen.chip_hint_bottom_margin);
-
         hotseatBarTopPaddingPx =
                 res.getDimensionPixelSize(R.dimen.dynamic_grid_hotseat_top_padding);
         hotseatBarBottomPaddingPx = (isTallDevice ? 0