[subresource_filter] Revamp Site Details page

chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SubresourceFilterListPreference.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SubresourceFilterListPreference.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SubresourceFilterListPreference.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SubresourceFilterListPreference.java
new file mode 100644
index 0000000000000000000000000000000000000000..766c26a21f711eea57eae0b635375dd18efb890c
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SubresourceFilterListPreference.java
@@ -0,0 +1,87 @@
+// 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.preferences.website;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.util.AttributeSet;
+
+import org.chromium.chrome.browser.preferences.ChromeBaseListPreference;
+import org.chromium.ui.R;
+
+/**
+ * Subresource filter specific list preference, which maintains slightly different behavior from the
+ * standard Chrome one.
+ * - The Block and Allow strings are custom.
+ * - The Block and Allow strings can change when displayed in the radio dialog.
+ * - The Block and Allow strings can change depending on whether the site is on the Safe Browsing
+ *   blacklist (aka activated).
+ */
+public class SubresourceFilterListPreference extends ChromeBaseListPreference {
+    // The Allow/Block strings to show for the setting if the subresource filter is activated.
+    private String mActiveAllowString;
+    private String mActiveBlockString;
+
+    // The Allow/Block strings to show for the setting if the subresource filter is not activated
+    // but we are still displaying the setting. These strings should also always be used in the
+    // radio dialog.
+    private String mPassiveAllowString;
+    private String mPassiveBlockString;
+
+    private boolean mShouldUseActiveStrings;
+
+    /**
+     * Constructor for inflating from XML.
+     */
+    public SubresourceFilterListPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        // Use the active string by default.
+        mShouldUseActiveStrings = true;
+
+        TypedArray a = context.obtainStyledAttributes(
+                attrs, R.styleable.SubresourceFilterListPreference, 0, 0);
+        assert a.hasValue(R.styleable.SubresourceFilterListPreference_activeAllowText);
+        assert a.hasValue(R.styleable.SubresourceFilterListPreference_passiveAllowText);
+        assert a.hasValue(R.styleable.SubresourceFilterListPreference_activeBlockText);
+        assert a.hasValue(R.styleable.SubresourceFilterListPreference_passiveBlockText);
+        mActiveAllowString =
+                a.getString(R.styleable.SubresourceFilterListPreference_activeAllowText);
+        mPassiveAllowString =
+                a.getString(R.styleable.SubresourceFilterListPreference_passiveAllowText);
+        mActiveBlockString =
+                a.getString(R.styleable.SubresourceFilterListPreference_activeBlockText);
+        mPassiveBlockString =
+                a.getString(R.styleable.SubresourceFilterListPreference_passiveBlockText);
+        a.recycle();
+    }
+
+    public void setShouldUseActiveStrings(boolean shouldUseActiveStrings) {
+        mShouldUseActiveStrings = shouldUseActiveStrings;
+        resetEntries(mShouldUseActiveStrings);
+    }
+
+    @Override
+    protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
+        // The dialog always uses passive strings.
+        resetEntries(false /* active */);
+        super.onPrepareDialogBuilder(builder);
+    }
+
+    @Override
+    protected void onDialogClosed(boolean positiveResult) {
+        // Reset the string to what was originally there.
+        resetEntries(mShouldUseActiveStrings);
+        super.onDialogClosed(positiveResult);
+    }
+
+    private void resetEntries(boolean active) {
+        CharSequence[] entries = getEntries();
+        String allowString = active ? mActiveAllowString : mPassiveAllowString;
+        String blockString = active ? mActiveBlockString : mPassiveBlockString;
+        setEntries(new String[] {allowString, blockString});
+    }
+}