1 files changed, 164 insertions, 0 deletions
diff --git a/showcaseview/java/com/github/amlcurran/showcaseview/targets/ActionBarViewWrapper.java b/showcaseview/java/com/github/amlcurran/showcaseview/targets/ActionBarViewWrapper.java
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+++ b/showcaseview/java/com/github/amlcurran/showcaseview/targets/ActionBarViewWrapper.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2014 Alex Curran
+ *
+ * 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.github.amlcurran.showcaseview.targets;
+
+import android.util.Log;
+import android.view.View;
+import android.view.ViewParent;
+
+import java.lang.reflect.Field;
+
+/**
+ * Class which wraps round the many implementations of ActionBarView and allows finding of Action
+ * items
+ */
+class ActionBarViewWrapper {
+
+    private ViewParent mActionBarView;
+    private Class mActionBarViewClass;
+    private Class mAbsActionBarViewClass;
+
+    public ActionBarViewWrapper(ViewParent actionBarView) {
+        if (!actionBarView.getClass().getName().contains("ActionBarView")) {
+            String previousP = actionBarView.getClass().getName();
+            actionBarView = actionBarView.getParent();
+            String throwP = actionBarView.getClass().getName();
+            if (!actionBarView.getClass().getName().contains("ActionBarView")) {
+                throw new IllegalStateException("Cannot find ActionBarView for " +
+                        "Activity, instead found " + previousP + " and " + throwP);
+            }
+        }
+        mActionBarView = actionBarView;
+        mActionBarViewClass = actionBarView.getClass();
+        mAbsActionBarViewClass = actionBarView.getClass().getSuperclass();
+    }
+
+    /**
+     * Return the view which represents the spinner on the ActionBar, or null if there isn't one
+     */
+    public View getSpinnerView() {
+        try {
+            Field spinnerField = mActionBarViewClass.getDeclaredField("mSpinner");
+            spinnerField.setAccessible(true);
+            return (View) spinnerField.get(mActionBarView);
+        } catch (NoSuchFieldException e) {
+            Log.e("TAG", "Failed to find actionbar spinner", e);
+        } catch (IllegalAccessException e) {
+            Log.e("TAG", "Failed to access actionbar spinner", e);
+        }
+        return null;
+    }
+
+    /**
+     * Return the view which represents the title on the ActionBar, or null if there isn't one
+     */
+    public View getTitleView() {
+        try {
+            Field mTitleViewField = mActionBarViewClass.getDeclaredField("mTitleView");
+            mTitleViewField.setAccessible(true);
+            return (View) mTitleViewField.get(mActionBarView);
+        } catch (NoSuchFieldException e) {
+            Log.e("TAG", "Failed to find actionbar title", e);
+        } catch (IllegalAccessException e) {
+            Log.e("TAG", "Failed to access actionbar title", e);
+        }
+        return null;
+    }
+
+    /**
+     * Return the view which represents the overflow action item on the ActionBar, or null if there isn't one
+     */
+    public View getOverflowView() {
+        try {
+            Field actionMenuPresenterField = mAbsActionBarViewClass.getDeclaredField("mActionMenuPresenter");
+            actionMenuPresenterField.setAccessible(true);
+            Object actionMenuPresenter = actionMenuPresenterField.get(mActionBarView);
+            Field overflowButtonField = actionMenuPresenter.getClass().getDeclaredField("mOverflowButton");
+            overflowButtonField.setAccessible(true);
+            return (View) overflowButtonField.get(actionMenuPresenter);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        } catch (NoSuchFieldException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+    
+    /**
+     * Return the view which represents the MediaRouterButton action item on the ActionBar, or null
+     * if there isn't one
+     */
+    public View getMediaRouterButtonView() {
+        try {
+            Field actionMenuPresenterField =
+                    mAbsActionBarViewClass.getDeclaredField("mActionMenuPresenter");
+            actionMenuPresenterField.setAccessible(true);
+            Object actionMenuPresenter = actionMenuPresenterField.get(mActionBarView);
+            Field mediaRouteButtonField = actionMenuPresenter.getClass()
+                    .getDeclaredField("mScrapActionButtonView");
+            mediaRouteButtonField.setAccessible(true);
+            return (View) mediaRouteButtonField.get(actionMenuPresenter);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        } catch (NoSuchFieldException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public View getActionItem(int actionItemId) {
+        try {
+            Field actionMenuPresenterField = mAbsActionBarViewClass.getDeclaredField("mActionMenuPresenter");
+            actionMenuPresenterField.setAccessible(true);
+            Object actionMenuPresenter = actionMenuPresenterField.get(mActionBarView);
+
+            Field menuViewField = actionMenuPresenter.getClass().getSuperclass().getDeclaredField("mMenuView");
+            menuViewField.setAccessible(true);
+            Object menuView = menuViewField.get(actionMenuPresenter);
+
+            Field mChField;
+            if (menuView.getClass().toString().contains("com.actionbarsherlock")) {
+                // There are thousands of superclasses to traverse up
+                // Have to get superclasses because mChildren is private
+                mChField = menuView.getClass().getSuperclass().getSuperclass()
+                        .getSuperclass().getSuperclass().getDeclaredField("mChildren");
+            } else if (menuView.getClass().toString().contains("android.support.v7")) {
+                mChField = menuView.getClass().getSuperclass().getSuperclass()
+                        .getSuperclass().getDeclaredField("mChildren");
+            } else {
+                mChField = menuView.getClass().getSuperclass().getSuperclass()
+                        .getDeclaredField("mChildren");
+            }
+            mChField.setAccessible(true);
+            Object[] mChs = (Object[]) mChField.get(menuView);
+            for (Object mCh : mChs) {
+                if (mCh != null) {
+                    View v = (View) mCh;
+                    if (v.getId() == actionItemId) {
+                        return v;
+                    }
+                }
+            }
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        } catch (NoSuchFieldException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+}