[android] Password generation UI for android.

chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationAdapter.java

Index: chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationAdapter.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationAdapter.java b/chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationAdapter.java
new file mode 100644
index 0000000000000000000000000000000000000000..636477b60a0c6cd0a43ac86a01cd8cc8b52f55bb
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+++ b/chrome/android/java/src/org/chromium/chrome/browser/autofill/PasswordGenerationAdapter.java
@@ -0,0 +1,140 @@
+// Copyright 2014 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.autofill;
+
+import android.content.Context;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.TextPaint;
+import android.text.method.LinkMovementMethod;
+import android.text.style.ClickableSpan;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.RelativeLayout.LayoutParams;
+import android.widget.TextView;
+
+import org.chromium.chrome.R;
+
+import java.util.List;
+
+/**
+ * The adapter that populates the list popup for password generation with data.
+ */
+public class PasswordGenerationAdapter
+        extends ArrayAdapter<PasswordGenerationPopup.PasswordGenerationView> {
+    private Context mContext;
+    private PasswordGenerationPopup.Delegate mDelegate;
+    private SpannableString mExplanationSpan;
+
+    /**
+     * Builds the adapter to display views using data from delegate.
+     * @param context Android context.
+     * @param views The types of views to display in the list popup.
+     * @param delegate The data to be populated in the list popup.
+     */
+    public PasswordGenerationAdapter(Context context,
+            List<PasswordGenerationPopup.PasswordGenerationView> views,
+            PasswordGenerationPopup.Delegate delegate) {
+        super(context, R.layout.password_generation_popup, views);
+
+        mContext = context;
+        mDelegate = delegate;
+
+        mExplanationSpan = new SpannableString(mDelegate.getExplanationText());
+        mExplanationSpan.setSpan(
+                new ClickableSpan() {
+                    @Override
+                    public void onClick(View view) {
+                        mDelegate.onSavedPasswordsLinkClicked();
+                    }
+                    @Override
+                    public void updateDrawState(TextPaint textPaint) {
+                        textPaint.setUnderlineText(false);
+                        textPaint.setColor(mContext.getResources().getColor(
+                                    R.color.password_generation_link_text_color));
+                    }
+                },
+                mDelegate.getExplanationTextLinkRangeStart(),
+                mDelegate.getExplanationTextLinkRangeEnd(),
+                Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+    }
+
+    /**
+     * Used by list popup window to draw an element.
+     * @param position The position of the element in the popup list.
+     * @param convertView If not null, the element view where the data goes.
+     * @param parent The list popup.
+     * @return The view of the popup list element at the given position.
+     */
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        View layout = convertView;
+        if (convertView == null) {
+            LayoutInflater inflater =
+                    (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            layout = inflater.inflate(R.layout.password_generation_popup, null);
+        }
+
+        View suggestion = layout.findViewById(R.id.password_generation_suggestion);
+        TextView title = (TextView) layout.findViewById(R.id.password_generation_title);
+        TextView password = (TextView) layout.findViewById(R.id.password_generation_password);
+        View divider = layout.findViewById(R.id.password_generation_divider);
+        TextView explanation = (TextView) layout.findViewById(R.id.password_generation_explanation);
+
+        title.setText(mDelegate.getSuggestionTitle());
+        password.setText(mDelegate.getPassword());
+        explanation.setText(mExplanationSpan);
+        explanation.setMovementMethod(LinkMovementMethod.getInstance());
+
+        suggestion.setMinimumWidth(mDelegate.getMinimumWidth());
+        suggestion.setVisibility(View.VISIBLE);
+        divider.setVisibility(View.VISIBLE);
+        explanation.setVisibility(View.VISIBLE);
+        suggestion.measure(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
+        explanation.setLayoutParams(
+            new LayoutParams(suggestion.getMeasuredWidth(), LayoutParams.WRAP_CONTENT));
+
+        PasswordGenerationPopup.PasswordGenerationView view = getItem(position);
+        switch (view) {
+            case SUGGESTION:
+                suggestion.setVisibility(View.VISIBLE);
+                divider.setVisibility(View.VISIBLE);
+                explanation.setVisibility(View.GONE);
+                break;
+
+            case EXPLANATION:
+                suggestion.setVisibility(View.GONE);
+                divider.setVisibility(View.GONE);
+                explanation.setVisibility(View.VISIBLE);
+                break;
+        }
+
+        return layout;
+    }
+
+    /**
+     * Used by list popup window to check if all of the elements are enabled. All password
+     * generation popups have an explanation element, which is not selectable. Therefore, this
+     * method always returns false: some of the items are disabled.
+     * @return boolean Always false.
+     */
+    @Override
+    public boolean areAllItemsEnabled() {
+        return false;
+    }
+
+    /**
+     * Used by list popup window to check if the element at this position is enabled. Only the
+     * suggestion element is enabled.
+     * @return boolean True if the view at position is a suggestion.
+     */
+    @Override
+    public boolean isEnabled(int position) {
+        PasswordGenerationPopup.PasswordGenerationView view = getItem(position);
+        return view == PasswordGenerationPopup.PasswordGenerationView.SUGGESTION;
+    }
+}