Change CBD layout and texts

chrome/android/java/src/org/chromium/chrome/browser/preferences/ClearBrowsingDataTabCheckBoxPreference.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/ClearBrowsingDataTabCheckBoxPreference.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/ClearBrowsingDataTabCheckBoxPreference.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/ClearBrowsingDataTabCheckBoxPreference.java
new file mode 100644
index 0000000000000000000000000000000000000000..aa3398a87a994e6f4806b85f023072b07bb376f6
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/ClearBrowsingDataTabCheckBoxPreference.java
@@ -0,0 +1,127 @@
+// 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;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.style.ClickableSpan;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import org.chromium.base.ApiCompatibilityUtils;
+import org.chromium.ui.text.NoUnderlineClickableSpan;
+import org.chromium.ui.text.SpanApplier;
+
+/**
+ * A preference representing one browsing data type in ClearBrowsingDataPreferencesTab.
+ * This class allows clickable links inside the checkbox summary.
+ */
+public class ClearBrowsingDataTabCheckBoxPreference extends ClearBrowsingDataCheckBoxPreference {
+    private Runnable mLinkClickDelegate;
+    private boolean mHasClickableSpans;
+
+    /**
+     * Constructor for inflating from XML.
+     */
+    public ClearBrowsingDataTabCheckBoxPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    /**
+     * @param linkClickDelegate A Runnable that is executed when a link inside the summary is
+     *                          clicked.
+     */
+    public void setLinkClickDelegate(Runnable linkClickDelegate) {
+        mLinkClickDelegate = linkClickDelegate;
+    }
+
+    @Override
+    public View onCreateView(ViewGroup parent) {
+        View view = super.onCreateView(parent);
+
+        final TextView textView = (TextView) view.findViewById(android.R.id.summary);
+
+        // Create custom onTouch listener to be able to respond to click events inside the summary.
+        textView.setOnTouchListener(new View.OnTouchListener() {
+            @Override
+            @SuppressLint("ClickableViewAccessibility")
+            public boolean onTouch(View v, MotionEvent event) {
+                if (!mHasClickableSpans) {
+                    return false;
+                }
+                // Find out which character was touched.
+                int offset = textView.getOffsetForPosition(event.getX(), event.getY());
+                // Check if this character contains a span.
+                Spanned text = (Spanned) textView.getText();
+                ClickableSpan[] types = text.getSpans(offset, offset, ClickableSpan.class);
+
+                if (types.length > 0) {
+                    if (event.getAction() == MotionEvent.ACTION_UP) {
+                        for (ClickableSpan type : types) {
+                            type.onClick(textView);
+                        }
+                    }
+                    return true;
+                } else {
+                    return false;
+                }
+            }
+        });
+
+        return view;
+    }
+
+    @Override
+    protected void setupLayout(LinearLayout view) {
+        float density = view.getResources().getDisplayMetrics().density;
+        // Use a custom layout to improve the design with large summary texts.
+        view.setGravity(Gravity.TOP);
+        ListView.LayoutParams lp = (ListView.LayoutParams) view.getLayoutParams();
+        ApiCompatibilityUtils.setPaddingRelative(view, ApiCompatibilityUtils.getPaddingStart(view),
+                (int) (6 * density), ApiCompatibilityUtils.getPaddingEnd(view),
+                (int) (6 * density));
+        view.setLayoutParams(lp);
+
+        RelativeLayout textLayout =
+                (RelativeLayout) view.findViewById(android.R.id.title).getParent();
+        ApiCompatibilityUtils.setPaddingRelative(textLayout,
+                ApiCompatibilityUtils.getPaddingStart(textLayout), 0,
+                ApiCompatibilityUtils.getPaddingEnd(textLayout), 0);
+
+        LinearLayout widgetFrame = (LinearLayout) view.findViewById(android.R.id.widget_frame);
+        widgetFrame.setGravity(Gravity.TOP);
+    }
+
+    @Override
+    public void setSummary(CharSequence summary) {
+        // If there is no link in the summary, invoke the default behavior.
+        String summaryString = summary.toString();
+        if (!summaryString.contains("<link>") || !summaryString.contains("</link>")) {
+            super.setSummary(summary);
+            return;
+        }
+
+        // Linkify <link></link> span.
+        final SpannableString summaryWithLink = SpanApplier.applySpans(summaryString,
+                new SpanApplier.SpanInfo("<link>", "</link>", new NoUnderlineClickableSpan() {
+                    @Override
+                    public void onClick(View widget) {
+                        if (mLinkClickDelegate != null) mLinkClickDelegate.run();
+                    }
+                }));
+
+        mHasClickableSpans = true;
+        super.setSummary(summaryWithLink);
+    }
+}