Add a Share Icon to Tabular Context Menu

chrome/android/java/src/org/chromium/chrome/browser/contextmenu/TabularContextMenuUi.java

 // Copyright 2017 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.contextmenu;
 
+import android.app.Activity;
 import android.app.Dialog;
-import android.content.Context;
 import android.content.DialogInterface;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Shader;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.support.design.widget.TabLayout;
 import android.support.v4.view.ViewPager;
 import android.support.v7.app.AlertDialog;
@@ skipping 17 matching lines @@
 import java.util.List;
 
 /**
  * A custom dialog that separates each group into separate tabs. It uses a dialog instead.
  */
 public class TabularContextMenuUi implements ContextMenuUi, AdapterView.OnItemClickListener {
     private Dialog mDialog;
     private Callback<Integer> mCallback;
     private int mMenuItemHeight;
     private ImageView mHeaderImageView;
+    private Runnable mOnShareItemClicked;
+
+    public TabularContextMenuUi(Runnable onShareItemClicked) {
+        mOnShareItemClicked = onShareItemClicked;
+    }
 
     @Override
-    public void displayMenu(Context context, ContextMenuParams params,
+    public void displayMenu(Activity activity, ContextMenuParams params,
             List<Pair<Integer, List<ContextMenuItem>>> items, Callback<Integer> onItemClicked,
             final Runnable onMenuShown, final Runnable onMenuClosed) {
         mCallback = onItemClicked;
-        mDialog = createDialog(context, params, items);
+        mDialog = createDialog(activity, params, items);
         mDialog.getWindow().setBackgroundDrawable(ApiCompatibilityUtils.getDrawable(
-                context.getResources(), R.drawable.bg_find_toolbar_popup));
+                activity.getResources(), R.drawable.bg_find_toolbar_popup));
 
         mDialog.setOnShowListener(new DialogInterface.OnShowListener() {
             @Override
             public void onShow(DialogInterface dialogInterface) {
                 onMenuShown.run();
             }
         });
 
         mDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
             @Override
             public void onDismiss(DialogInterface dialogInterface) {
                 onMenuClosed.run();
             }
         });
 
         mDialog.show();
     }
 
     /**
      * Returns the fully complete dialog based off the params and the itemGroups.
-     * @param context Used to inflate the dialog.
+     * @param activity Used to inflate the dialog.
      * @param params Used to get the header title.
      * @param itemGroups If there is more than one group it will create a paged view.
      * @return Returns a final dialog that does not have a background can be displayed using
      *         {@link AlertDialog#show()}.
      */
-    private Dialog createDialog(Context context, ContextMenuParams params,
+    private Dialog createDialog(Activity activity, ContextMenuParams params,
             List<Pair<Integer, List<ContextMenuItem>>> itemGroups) {
-        Dialog dialog = new Dialog(context);
-        dialog.setContentView(createPagerView(context, params, itemGroups));
+        Dialog dialog = new Dialog(activity);
+        dialog.setContentView(createPagerView(activity, params, itemGroups));
         return dialog;
     }
 
     /**
      * Creates the view of a context menu. Based off the Context Type, it'll adjust the list of
      * items and display only the ones that'll be on that specific group.
-     * @param context Used to get the resources of an item.
+     * @param activity Used to get the resources of an item.
      * @param params used to create the header text.
      * @param items A set of Items to display in a context menu. Filtered based off the type.
      * @param isImage Whether or not the view should have an image layout or not.
      * @param maxCount The maximum amount of {@link ContextMenuItem}s that could exist in this view
      *                 or any other views calculated in the context menu. Used to estimate the size
      *                 of the list.
      * @return Returns a filled LinearLayout with all the context menu items.
      */
     @VisibleForTesting
-    ViewGroup createContextMenuPageUi(Context context, ContextMenuParams params,
+    ViewGroup createContextMenuPageUi(Activity activity, ContextMenuParams params,
             List<ContextMenuItem> items, boolean isImage, int maxCount) {
-        ViewGroup baseLayout = (ViewGroup) LayoutInflater.from(context).inflate(
+        ViewGroup baseLayout = (ViewGroup) LayoutInflater.from(activity).inflate(
                 R.layout.tabular_context_menu_page, null);
         ListView listView = (ListView) baseLayout.findViewById(R.id.selectable_items);
 
         if (isImage) {
-            displayImageHeader(baseLayout, params, context.getResources());
+            displayImageHeader(baseLayout, params, activity.getResources());
         } else {
             displayHeaderIfVisibleItems(params, baseLayout);
         }
 
         // Set the list adapter and get the height to display it appropriately in a dialog.
         TabularContextMenuListAdapter listAdapter =
-                new TabularContextMenuListAdapter(items, context);
+                new TabularContextMenuListAdapter(items, activity, mOnShareItemClicked);
         ViewGroup.LayoutParams layoutParams = listView.getLayoutParams();
         layoutParams.height = measureApproximateListViewHeight(listView, listAdapter, maxCount);
         listView.setLayoutParams(layoutParams);
         listView.setAdapter(listAdapter);
         listView.setOnItemClickListener(this);
 
         return baseLayout;
     }
 
     private void displayHeaderIfVisibleItems(ContextMenuParams params, ViewGroup baseLayout) {
@@ skipping 73 matching lines @@
             View view = listAdapter.getView(0, null, listView);
             view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
                     View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
             mMenuItemHeight = view.getMeasuredHeight();
         }
         return totalHeight + mMenuItemHeight * maxCount;
     }
 
     /**
      * Creates a ViewPageAdapter based off the given list of views.
-     * @param context Used to inflate the new ViewPager
+     * @param activity Used to inflate the new ViewPager
      * @param params Used to get the header text.
      * @param itemGroups The list of views to put into the ViewPager. The string is the title of the
      *                   tab
      * @return Returns a complete tabular context menu view.
      */
     @VisibleForTesting
-    View createPagerView(Context context, ContextMenuParams params,
+    View createPagerView(Activity activity, ContextMenuParams params,
             List<Pair<Integer, List<ContextMenuItem>>> itemGroups) {
-        View view = LayoutInflater.from(context).inflate(R.layout.tabular_context_menu, null);
+        View view = LayoutInflater.from(activity).inflate(R.layout.tabular_context_menu, null);
 
         List<Pair<String, ViewGroup>> viewGroups = new ArrayList<>();
         int maxCount = 0;
         for (int i = 0; i < itemGroups.size(); i++) {
             Pair<Integer, List<ContextMenuItem>> itemGroup = itemGroups.get(i);
             maxCount = Math.max(maxCount, itemGroup.second.size());
         }
         for (int i = 0; i < itemGroups.size(); i++) {
             Pair<Integer, List<ContextMenuItem>> itemGroup = itemGroups.get(i);
             // TODO(tedchoc): Pass the ContextMenuGroup identifier to determine if it's an image.
             boolean isImageTab = itemGroup.first == R.string.contextmenu_image_title;
-            viewGroups.add(new Pair<>(context.getString(itemGroup.first),
+            viewGroups.add(new Pair<>(activity.getString(itemGroup.first),
                     createContextMenuPageUi(
-                            context, params, itemGroup.second, isImageTab, maxCount)));
+                            activity, params, itemGroup.second, isImageTab, maxCount)));
         }
         TabularContextMenuViewPager pager =
                 (TabularContextMenuViewPager) view.findViewById(R.id.custom_pager);
         pager.setAdapter(new TabularContextMenuPagerAdapter(viewGroups));
 
         TabLayout tabLayout = (TabLayout) view.findViewById(R.id.tab_layout);
         if (itemGroups.size() <= 1) {
             tabLayout.setVisibility(View.GONE);
         }
         tabLayout.setupWithViewPager((ViewPager) view.findViewById(R.id.custom_pager));
@@ skipping 10 matching lines @@
             mHeaderImageView.setImageBitmap(bitmap);
         }
     }
 
     @Override
     public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
         mDialog.dismiss();
         mCallback.onResult((int) id);
     }
 }