Add important notice strip

This change is a groundwork to show important notice.

Bug: 10587358
Change-Id: I80aa70d30e2a529b37798f0df2183b41df3ac38a

java/res/layout/suggestions_strip.xml

@@ -45,4 +45,17 @@
             android:textAlignment="viewStart"
             style="?attr/suggestionWordStyle" />
     </LinearLayout>
+    <LinearLayout
+        android:id="@+id/important_notice_strip"
+        android:orientation="horizontal"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+        <TextView
+            android:id="@+id/important_notice_title"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1.0"
+            android:textSize="14sp"
+            style="?attr/suggestionWordStyle" />
+    </LinearLayout>
 </merge>

java/res/values/strings-config-important-notice.xml

@@ -20,5 +20,8 @@
 
 <resources>
     <integer name="config_important_notice_version">0</integer>
-    <!-- TODO: Add important notice title and description string resources. -->
+    <!-- The title of the important notice displayed on the suggestion strip. -->
+    <string name="important_notice_title"></string>
+    <!-- The contents of the important notice. -->
+    <string name="important_notice_contents"></string>
 </resources>

java/src/com/android/inputmethod/latin/LatinIME.java

@@ -1157,6 +1157,13 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         mInputLogic.mSuggest.mDictionaryFacilitator.addWordToUserDictionary(wordToEdit);
     }
 
+    // Callback for the {@link SuggestionStripView}, to call when the important notice strip is
+    // pressed.
+    @Override
+    public void showImportantNoticeContents() {
+        // TODO: Show dialog to display important notice contents.
+    }
+
     public void displaySettingsDialog() {
         if (isShowingOptionDialog()) return;
         showSubtypeSelectorAndSettings();

java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java

@@ -28,7 +28,6 @@ import android.graphics.Rect;
 import android.graphics.Typeface;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
-import android.support.v4.view.GravityCompat;
 import android.support.v4.view.ViewCompat;
 import android.text.Spannable;
 import android.text.SpannableString;
@@ -45,6 +44,7 @@ import android.view.ViewGroup;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import com.android.inputmethod.compat.TextViewCompatUtils;
 import com.android.inputmethod.latin.LatinImeLogger;
 import com.android.inputmethod.latin.R;
 import com.android.inputmethod.latin.SuggestedWords;
@@ -492,7 +492,24 @@ final class SuggestionStripLayoutHelper {
                 hintView, 1.0f - mCenterSuggestionWeight, ViewGroup.LayoutParams.MATCH_PARENT);
     }
 
-    private static void setLayoutWeight(final View v, final float weight, final int height) {
+    public void layoutImportantNotice(final View importantNoticeStrip, final int stripWidth) {
+        final Resources res = importantNoticeStrip.getResources();
+        final Drawable infoIcon = res.getDrawable(R.drawable.sym_keyboard_info_holo_dark);
+        final Drawable moreIcon = res.getDrawable(R.drawable.sym_keyboard_more_holo_dark);
+        final int width = stripWidth - infoIcon.getIntrinsicWidth() - moreIcon.getIntrinsicWidth();
+        final TextView titleView = (TextView)importantNoticeStrip.findViewById(
+                R.id.important_notice_title);
+        titleView.setTextColor(mColorAutoCorrect);
+        TextViewCompatUtils.setCompoundDrawablesRelativeWithIntrinsicBounds(
+                titleView, infoIcon, null, moreIcon, null);
+        final CharSequence importantNoticeTitle = res.getText(R.string.important_notice_title);
+        titleView.setTextScaleX(1.0f); // Reset textScaleX.
+        final float titleScaleX = getTextScaleX(importantNoticeTitle, width, titleView.getPaint());
+        titleView.setText(importantNoticeTitle);
+        titleView.setTextScaleX(titleScaleX);
+    }
+
+    static void setLayoutWeight(final View v, final float weight, final int height) {
         final ViewGroup.LayoutParams lp = v.getLayoutParams();
         if (lp instanceof LinearLayout.LayoutParams) {
             final LinearLayout.LayoutParams llp = (LinearLayout.LayoutParams)lp;

java/src/com/android/inputmethod/latin/suggestions/SuggestionStripView.java

@@ -54,6 +54,7 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
         OnLongClickListener {
     public interface Listener {
         public void addWordToUserDictionary(String word);
+        public void showImportantNoticeContents();
         public void pickSuggestionManually(int index, SuggestedWordInfo word);
     }
 
@@ -62,6 +63,7 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
 
     private final ViewGroup mSuggestionsStrip;
     private final ViewGroup mAddToDictionaryStrip;
+    private final View mImportantNoticeStrip;
     MainKeyboardView mMainKeyboardView;
 
     private final View mMoreSuggestionsContainer;
@@ -81,10 +83,13 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
     private static class StripVisibilityGroup {
         private final View mSuggestionsStrip;
         private final View mAddToDictionaryStrip;
+        private final View mImportantNoticeStrip;
 
-        public StripVisibilityGroup(final View suggestionsStrip, final View addToDictionaryStrip) {
+        public StripVisibilityGroup(final View suggestionsStrip, final View addToDictionaryStrip,
+                final View importantNoticeStrip) {
             mSuggestionsStrip = suggestionsStrip;
             mAddToDictionaryStrip = addToDictionaryStrip;
+            mImportantNoticeStrip = importantNoticeStrip;
             showSuggestionsStrip();
         }
 
@@ -93,16 +98,25 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
                     : ViewCompat.LAYOUT_DIRECTION_LTR;
             ViewCompat.setLayoutDirection(mSuggestionsStrip, layoutDirection);
             ViewCompat.setLayoutDirection(mAddToDictionaryStrip, layoutDirection);
+            ViewCompat.setLayoutDirection(mImportantNoticeStrip, layoutDirection);
         }
 
         public void showSuggestionsStrip() {
             mSuggestionsStrip.setVisibility(VISIBLE);
             mAddToDictionaryStrip.setVisibility(INVISIBLE);
+            mImportantNoticeStrip.setVisibility(INVISIBLE);
         }
 
         public void showAddToDictionaryStrip() {
             mSuggestionsStrip.setVisibility(INVISIBLE);
             mAddToDictionaryStrip.setVisibility(VISIBLE);
+            mImportantNoticeStrip.setVisibility(INVISIBLE);
+        }
+
+        public void showImportantNoticeStrip() {
+            mSuggestionsStrip.setVisibility(INVISIBLE);
+            mAddToDictionaryStrip.setVisibility(INVISIBLE);
+            mImportantNoticeStrip.setVisibility(VISIBLE);
         }
 
         public boolean isShowingAddToDictionaryStrip() {
@@ -128,7 +142,9 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
 
         mSuggestionsStrip = (ViewGroup)findViewById(R.id.suggestions_strip);
         mAddToDictionaryStrip = (ViewGroup)findViewById(R.id.add_to_dictionary_strip);
-        mStripVisibilityGroup = new StripVisibilityGroup(mSuggestionsStrip, mAddToDictionaryStrip);
+        mImportantNoticeStrip = findViewById(R.id.important_notice_strip);
+        mStripVisibilityGroup = new StripVisibilityGroup(mSuggestionsStrip, mAddToDictionaryStrip,
+                mImportantNoticeStrip);
 
         for (int pos = 0; pos < SuggestedWords.MAX_SUGGESTIONS; pos++) {
             final TextView word = new TextView(context, null, R.attr.suggestionWordStyle);
@@ -176,6 +192,7 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
         if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
             ResearchLogger.suggestionStripView_setSuggestions(mSuggestedWords);
         }
+        mStripVisibilityGroup.showSuggestionsStrip();
     }
 
     public int setMoreSuggestionsHeight(final int remainingHeight) {
@@ -203,6 +220,12 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
         return false;
     }
 
+    public void showImportantNoticeTitle() {
+        mLayoutHelper.layoutImportantNotice(mImportantNoticeStrip, getWidth());
+        mStripVisibilityGroup.showImportantNoticeStrip();
+        mImportantNoticeStrip.setOnClickListener(this);
+    }
+
     public void clear() {
         mSuggestionsStrip.removeAllViews();
         removeAllDebugInfoViews();
@@ -360,6 +383,10 @@ public final class SuggestionStripView extends RelativeLayout implements OnClick
 
     @Override
     public void onClick(final View view) {
+        if (view == mImportantNoticeStrip) {
+            mListener.showImportantNoticeContents();
+            return;
+        }
         final Object tag = view.getTag();
         // {@link String} tag is set at {@link #showAddToDictionaryHint(String,CharSequence)}.
         if (tag instanceof String) {