Refactor ContentViewClient (4/6)

chrome/android/java/src/org/chromium/chrome/browser/tab/TabViewAndroidDelegate.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.tab;
+
+import android.content.ActivityNotFoundException;
+import android.content.Intent;
+import android.view.ViewGroup;
+
+import org.chromium.base.Log;
+import org.chromium.base.metrics.RecordUserAction;
+import org.chromium.ui.base.ViewAndroidDelegate;
+
+/**
+ * Implementation of the abstract class {@link ViewAndroidDelegate} for Chrome.
+ */
+class TabViewAndroidDelegate extends ViewAndroidDelegate {
+    /** Used for logging. */
+    private static final String TAG = "TabVAD";
+
+    private final Tab mTab;
+    private final ViewGroup mContainerView;
+
+    TabViewAndroidDelegate(Tab tab, ViewGroup containerView) {
+        mTab = tab;
+        mContainerView = containerView;
+    }
+
+    @Override
+    public void onBackgroundColorChanged(int color) {
+        mTab.onBackgroundColorChanged(color);
+    }
+
+    @Override
+    public void onTopControlsChanged(float topControlsOffsetY, float topContentOffsetY) {
+        mTab.onOffsetsChanged(topControlsOffsetY, Float.NaN, topContentOffsetY);
+    }
+
+    @Override
+    public void onBottomControlsChanged(float bottomControlsOffsetY, float bottomContentOffsetY) {
+        mTab.onOffsetsChanged(Float.NaN, bottomControlsOffsetY, Float.NaN);
+    }
+
+    @Override
+    public void onStartContentIntent(String intentUrl, boolean isMainFrame) {
+        Intent intent;
+        // Perform generic parsing of the URI to turn it into an Intent.
+        try {
+            intent = Intent.parseUri(intentUrl, Intent.URI_INTENT_SCHEME);
+
+            String scheme = intent.getScheme();
+            if (!isAcceptableContentIntentScheme(scheme)) {
+                Log.w(TAG, "Invalid scheme for URI %s", intentUrl);
+                return;
+            }
+
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        } catch (Exception ex) {
+            Log.w(TAG, "Bad URI %s", intentUrl, ex);
+            return;
+        }
+
+        try {
+            RecordUserAction.record("Android.ContentDetectorActivated");
+            mTab.getActivity().startActivity(intent);
+        } catch (ActivityNotFoundException ex) {
+            Log.w(TAG, "No application can handle %s", intentUrl);
+        }
+    }
+
+    @Override
+    public ViewGroup getContainerView() {
+        return mContainerView;
+    }
+}