Refactor chrome's action mode logics and namings

chrome/android/java/src/org/chromium/chrome/browser/ContextualMenuBar.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ContextualMenuBar.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ContextualMenuBar.java b/chrome/android/java/src/org/chromium/chrome/browser/ContextualMenuBar.java
deleted file mode 100644
index eab406d7cb5af4ce816efbbe222a5c7e5297c8ff..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/ContextualMenuBar.java
+++ /dev/null
@@ -1,197 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.chrome.browser;
-
-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.ObjectAnimator;
-import android.animation.ValueAnimator;
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.support.v7.app.ActionBar;
-import android.util.Property;
-
-import org.chromium.chrome.R;
-
-/**
- * This class handles the animation for the contextual menu bar and adds a custom
- * ActionMode.Callback to the menu bar.
- */
-public class ContextualMenuBar {
-
-    private static final int SLIDE_DURATION_MS = 200;
-
-    private CustomSelectionActionModeCallback mCustomSelectionActionModeCallback;
-    private ObjectAnimator mCurrentAnimation = null;
-    private boolean mShowingContextualActionBar = false;
-    private float mTabStripHeight;
-    private final Context mContext;
-    private final ActionBarDelegate mActionBarDelegate;
-
-    /** Property for animating the top margin of ActionBarDelegate. */
-    public static final Property<ActionBarDelegate, Integer> TOP_MARGIN_ANIM_PROPERTY =
-            new Property<ActionBarDelegate, Integer>(Integer.class, "controlTopMargin") {
-                @Override
-                public Integer get(ActionBarDelegate delegate) {
-                    return delegate.getControlTopMargin();
-                }
-                @Override
-                public void set(ActionBarDelegate delegate, Integer value) {
-                    delegate.setControlTopMargin(value);
-                }
-            };
-
-    /**
-     * This is an interface for objects that the contextualMenuBar can use for animating the action
-     * bar.
-     */
-    public interface ActionBarDelegate {
-
-        /**
-         * Sets the top margin of the control container.
-         * @param margin The new top margin of the control container.
-         */
-        public void setControlTopMargin(int margin);
-
-        /**
-         * @return The top margin of the control container.
-         */
-        public int getControlTopMargin();
-
-        /**
-         * @return The action bar that will be animated in and out.
-         */
-        public ActionBar getSupportActionBar();
-
-        /**
-         * Change the background visibility for the action bar.
-         * @param visible Whether the background should be visible.
-         */
-        public void setActionBarBackgroundVisibility(boolean visible);
-    }
-
-    /**
-     * Creates the contextual menu bar and ties it to an action bar using the given action bar
-     * delegate.
-     * @param context The context which the contextual action menu bar should be using for accessing
-     *                resources.
-     * @param actionBarDelegate The delegate for communicating with the action bar while animating
-     *                          it.
-     */
-    public ContextualMenuBar(Context context, ActionBarDelegate actionBarDelegate) {
-        mActionBarDelegate = actionBarDelegate;
-        mContext = context;
-        mTabStripHeight = mContext.getResources().getDimension(R.dimen.tab_strip_height);
-    }
-
-    /**
-     * Overrides the preset height of the tab strip.
-     */
-    public void setTabStripHeight(int tabStripHeight) {
-        mTabStripHeight = tabStripHeight;
-    }
-
-    /**
-     * @return The delegate handling action bar positioning for the contextual menu bar.
-     */
-    public ActionBarDelegate getActionBarDelegate() {
-        return mActionBarDelegate;
-    }
-
-    /**
-     * Sets the custom ActionMode.Callback
-     * @param customSelectionActionModeCallback
-     */
-    public void setCustomSelectionActionModeCallback(
-            CustomSelectionActionModeCallback customSelectionActionModeCallback) {
-        if (customSelectionActionModeCallback.equals(mCustomSelectionActionModeCallback)) return;
-        mCustomSelectionActionModeCallback = customSelectionActionModeCallback;
-        mCustomSelectionActionModeCallback.setContextualMenuBar(this);
-    }
-
-    /**
-     * @return The custom ActionMode.Callback.
-     */
-    public CustomSelectionActionModeCallback getCustomSelectionActionModeCallback() {
-        return mCustomSelectionActionModeCallback;
-    }
-
-    /**
-     * @return The current action bar height.
-     */
-    private int queryCurrentActionBarHeight() {
-        ActionBar actionBar = mActionBarDelegate.getSupportActionBar();
-        if (actionBar != null) return actionBar.getHeight();
-
-        TypedArray styledAttributes =
-                mContext.obtainStyledAttributes(new int[] {R.attr.actionBarSize});
-        int height = styledAttributes.getDimensionPixelSize(0, 0);
-        styledAttributes.recycle();
-        return height;
-    }
-
-    /**
-     * Show controls after orientation change if previously visible.
-     */
-    public void showControlsOnOrientationChange() {
-        if (mShowingContextualActionBar && mCurrentAnimation == null) {
-            showControls();
-        }
-    }
-
-    /**
-     * Animation for the textview if the action bar is visible.
-     */
-    public void showControls() {
-        if (mCurrentAnimation != null) mCurrentAnimation.cancel();
-
-        mCurrentAnimation = ObjectAnimator.ofInt(mActionBarDelegate, TOP_MARGIN_ANIM_PROPERTY,
-                (int) (Math.max(0, queryCurrentActionBarHeight() - mTabStripHeight))).setDuration(
-                SLIDE_DURATION_MS);
-
-        mCurrentAnimation.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                mCurrentAnimation = null;
-            }
-        });
-
-        mCurrentAnimation.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
-            @Override
-            public void onAnimationUpdate(ValueAnimator animation) {
-                ActionBar actionBar = mActionBarDelegate.getSupportActionBar();
-                if (actionBar != null) {
-                    animation.setIntValues((int) (Math.max(0,
-                            queryCurrentActionBarHeight() - mTabStripHeight)));
-                }
-            }
-        });
-
-        mActionBarDelegate.setActionBarBackgroundVisibility(true);
-        mCurrentAnimation.start();
-        mShowingContextualActionBar = true;
-    }
-
-    /**
-     * Hide animation for the textview if the action bar is not visible.
-     */
-    public void hideControls() {
-        if (mCurrentAnimation != null) mCurrentAnimation.cancel();
-
-        mCurrentAnimation = ObjectAnimator.ofInt(mActionBarDelegate, TOP_MARGIN_ANIM_PROPERTY,
-                0).setDuration(SLIDE_DURATION_MS);
-
-        mCurrentAnimation.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                mCurrentAnimation = null;
-                mActionBarDelegate.setActionBarBackgroundVisibility(false);
-            }
-        });
-
-        mCurrentAnimation.start();
-        mShowingContextualActionBar = false;
-    }
-}