Make CandidateView aware of theme

This change is needed to introduce new theme easily.

Bug: 4436327
Change-Id: Idc368b66d892d9c888ba7a26bfa3527c21678292

java/res/layout/candidates_strip.xml

@@ -42,20 +42,18 @@
         <include
             android:id="@+id/candidate_right"
             layout="@layout/candidate" />
-        <!-- TODO: These images' drawable must be determined depending on theme. -->
+        <!-- Image drawables are set in CandidateView constructor -->
         <ImageButton
             android:id="@+id/expand_candidates_pane"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:src="@drawable/btn_expand_candidates_pane"
             android:visibility="gone"
-            style="?attr/suggestionBackgroundStyle" />
+            style="?attr/suggestionsStripBackgroundStyle" />
         <ImageButton
             android:id="@+id/close_candidates_pane"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:src="@drawable/btn_close_candidates_pane"
             android:visibility="gone"
-            style="?attr/suggestionBackgroundStyle" />
+            style="?attr/suggestionsStripBackgroundStyle" />
     </LinearLayout>
 </merge>

java/res/layout/input_view.xml

@@ -44,8 +44,7 @@
             android:layout_weight="1.0"
             android:layout_width="0dp"
             android:layout_height="@dimen/candidate_strip_height"
-            android:gravity="center_vertical"
+            android:gravity="center_vertical" />
-            style="?attr/suggestionsStripBackgroundStyle" />
         <View
             android:layout_width="@dimen/candidate_strip_padding"
             android:layout_height="@dimen/candidate_strip_height"

java/res/values-sw600dp/config.xml

@@ -26,7 +26,6 @@
     <bool name="config_enable_show_recorrection_option">false</bool>
     <bool name="config_enable_quick_fixes_option">false</bool>
     <bool name="config_enable_bigram_suggestions_option">false</bool>
-    <bool name="config_candidate_highlight_font_color_enabled">false</bool>
     <bool name="config_swipe_down_dismiss_keyboard_enabled">false</bool>
     <bool name="config_sliding_key_input_enabled">false</bool>
     <bool name="config_digit_popup_characters_enabled">false</bool>

java/res/values-sw768dp/config.xml

@@ -26,7 +26,6 @@
     <bool name="config_enable_show_recorrection_option">false</bool>
     <bool name="config_enable_quick_fixes_option">false</bool>
     <bool name="config_enable_bigram_suggestions_option">false</bool>
-    <bool name="config_candidate_highlight_font_color_enabled">false</bool>
     <bool name="config_swipe_down_dismiss_keyboard_enabled">false</bool>
     <bool name="config_sliding_key_input_enabled">false</bool>
     <bool name="config_digit_popup_characters_enabled">false</bool>

java/res/values/attrs.xml

@@ -28,6 +28,7 @@
         <attr name="suggestionsStripBackgroundStyle" format="reference" />
         <attr name="suggestionBackgroundStyle" format="reference" />
         <attr name="suggestionPreviewBackgroundStyle" format="reference" />
+        <attr name="candidateViewStyle" format="reference" />
     </declare-styleable>
 
     <declare-styleable name="KeyboardView">
@@ -88,6 +89,20 @@
 
     </declare-styleable>
 
+    <declare-styleable name="CandidateView">
+        <attr name="autoCorrectHighlight" format="integer">
+            <flag name="autoCorrectBold" value="0x01" />
+            <flag name="autoCorrectUnderline" value="0x02" />
+            <flag name="autoCorrectInvert" value="0x04" />
+            <flag name="autoCorrectSpacebarLed" value="0x08" />
+        </attr>
+        <attr name="colorTypedWord" format="color" />
+        <attr name="colorAutoCorrect" format="color" />
+        <attr name="colorSuggested" format="color" />
+        <attr name="iconExpandPane" format="reference" />
+        <attr name="iconClosePane" format="reference" />
+    </declare-styleable>
+
     <declare-styleable name="Keyboard">
         <!-- Default keyboard height -->
         <attr name="keyboardHeight" format="dimension" />

java/res/values/colors.xml

@@ -18,9 +18,6 @@
 */
 -->
 <resources>
-    <color name="candidate_typed_word">#FFFFFFFF</color>
-    <color name="candidate_auto_correct">#FFFCAE00</color>
-    <color name="candidate_suggested">#FFFCAE00</color>
     <color name="latinkeyboard_bar_language_shadow_white">#80000000</color>
     <color name="latinkeyboard_bar_language_shadow_black">#80FFFFFF</color>
     <color name="latinkeyboard_bar_language_text">#FFC0C0C0</color>

java/res/values/config.xml

@@ -27,7 +27,6 @@
     <bool name="config_enable_quick_fixes_option">true</bool>
     <bool name="config_enable_bigram_suggestions_option">true</bool>
     <bool name="config_enable_usability_study_mode_option">false</bool>
-    <bool name="config_candidate_highlight_font_color_enabled">true</bool>
     <bool name="config_swipe_down_dismiss_keyboard_enabled">true</bool>
     <bool name="config_sliding_key_input_enabled">true</bool>
     <bool name="config_digit_popup_characters_enabled">true</bool>

java/res/values/styles.xml

@@ -60,6 +60,15 @@
     <style name="SuggestionPreviewBackgroundStyle">
         <item name="android:background">@drawable/candidate_feedback_background</item>
     </style>
+    <style name="CandidateViewStyle" parent="SuggestionsStripBackgroundStyle">
+        <!-- TODO: autoCorrectSpacebarLed should be in style for LatinKeyboard. -->
+        <item name="autoCorrectHighlight">autoCorrectBold|autoCorrectSpacebarLed</item>
+        <item name="colorTypedWord">#FFFFFFFF</item>
+        <item name="colorAutoCorrect">#FFFCAE00</item>
+        <item name="colorSuggested">#FFFCAE00</item>
+        <item name="iconExpandPane">@drawable/btn_expand_candidates_pane</item>
+        <item name="iconClosePane">@drawable/btn_close_candidates_pane</item>"
+    </style>
     <!-- Theme "Basic high contrast" -->
     <style name="KeyboardView.HighContrast" parent="KeyboardView">
         <item name="android:background">@android:color/black</item>
@@ -126,6 +135,14 @@
     <style name="SuggestionPreviewBackgroundStyle.Honeycomb">
         <item name="android:background">@drawable/keyboard_popup_panel_background_holo</item>
     </style>
+    <style name="CandidateViewStyle.Honeycomb" parent="SuggestionsStripBackgroundStyle.Honeycomb">
+        <item name="autoCorrectHighlight">autoCorrectUnderline|autoCorrectInvert</item>
+        <item name="colorTypedWord">#FFFFFFFF</item>
+        <item name="colorAutoCorrect">#FFFFFFFF</item>
+        <item name="colorSuggested">#FFFFFFFF</item>
+        <item name="iconExpandPane">@drawable/btn_expand_candidates_pane</item>
+        <item name="iconClosePane">@drawable/btn_close_candidates_pane</item>"
+    </style>
     <style name="PopupMiniKeyboardAnimation">
         <item name="android:windowEnterAnimation">@anim/mini_keyboard_fadein</item>
         <item name="android:windowExitAnimation">@anim/mini_keyboard_fadeout</item>

java/res/values/themes.xml

@@ -24,6 +24,7 @@
         <item name="suggestionsStripBackgroundStyle">@style/SuggestionsStripBackgroundStyle</item>
         <item name="suggestionBackgroundStyle">@style/SuggestionBackgroundStyle</item>
         <item name="suggestionPreviewBackgroundStyle">@style/SuggestionPreviewBackgroundStyle</item>
+        <item name="candidateViewStyle">@style/CandidateViewStyle</item>
     </style>
     <style name="KeyboardTheme.HighContrast" parent="android:Theme">
         <item name="keyboardStyle">@style/Keyboard</item>
@@ -33,6 +34,7 @@
         <item name="popupMiniKeyboardPanelStyle">@style/PopupMiniKeyboardPanelStyle</item>
         <item name="suggestionsStripBackgroundStyle">@style/SuggestionsStripBackgroundStyle</item>
         <item name="suggestionBackgroundStyle">@style/SuggestionBackgroundStyle</item>
+        <item name="candidateViewStyle">@style/CandidateViewStyle</item>
     </style>
     <style name="KeyboardTheme.Stone" parent="android:Theme.Light">
         <item name="keyboardStyle">@style/Keyboard</item>
@@ -42,6 +44,7 @@
         <item name="popupMiniKeyboardPanelStyle">@style/PopupMiniKeyboardPanelStyle</item>
         <item name="suggestionsStripBackgroundStyle">@style/SuggestionsStripBackgroundStyle</item>
         <item name="suggestionBackgroundStyle">@style/SuggestionBackgroundStyle</item>
+        <item name="candidateViewStyle">@style/CandidateViewStyle</item>
     </style>
     <style name="KeyboardTheme.Stone.Bold" parent="android:Theme.Light">
         <item name="keyboardStyle">@style/Keyboard</item>
@@ -51,6 +54,7 @@
         <item name="popupMiniKeyboardPanelStyle">@style/PopupMiniKeyboardPanelStyle</item>
         <item name="suggestionsStripBackgroundStyle">@style/SuggestionsStripBackgroundStyle</item>
         <item name="suggestionBackgroundStyle">@style/SuggestionBackgroundStyle</item>
+        <item name="candidateViewStyle">@style/CandidateViewStyle</item>
     </style>
     <style name="KeyboardTheme.Gingerbread" parent="android:Theme.Black">
         <item name="keyboardStyle">@style/Keyboard</item>
@@ -60,6 +64,7 @@
         <item name="popupMiniKeyboardPanelStyle">@style/PopupMiniKeyboardPanelStyle</item>
         <item name="suggestionsStripBackgroundStyle">@style/SuggestionsStripBackgroundStyle</item>
         <item name="suggestionBackgroundStyle">@style/SuggestionBackgroundStyle</item>
+        <item name="candidateViewStyle">@style/CandidateViewStyle</item>
     </style>
     <style name="KeyboardTheme.Honeycomb" parent="android:Theme.Holo">
         <item name="keyboardStyle">@style/Keyboard.Honeycomb</item>
@@ -69,5 +74,6 @@
         <item name="popupMiniKeyboardPanelStyle">@style/PopupMiniKeyboardPanelStyle.Honeycomb</item>
         <item name="suggestionsStripBackgroundStyle">@style/SuggestionsStripBackgroundStyle.Honeycomb</item>
         <item name="suggestionBackgroundStyle">@style/SuggestionBackgroundStyle.Honeycomb</item>
+        <item name="candidateViewStyle">@style/CandidateViewStyle.Honeycomb</item>
     </style>
 </resources>

java/src/com/android/inputmethod/keyboard/KeyboardView.java

@@ -334,6 +334,7 @@ public class KeyboardView extends View implements PointerTracker.UIProxy {
         mKeyLetterStyle = Typeface.defaultFromStyle(
                 a.getInt(R.styleable.KeyboardView_keyLetterStyle, Typeface.NORMAL));
         mColorScheme = a.getInt(R.styleable.KeyboardView_colorScheme, COLOR_SCHEME_WHITE);
+        a.recycle();
 
         final Resources res = getResources();
 

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

@@ -18,6 +18,7 @@ package com.android.inputmethod.latin;
 
 import android.content.Context;
 import android.content.res.Resources;
+import android.content.res.TypedArray;
 import android.graphics.Color;
 import android.graphics.Typeface;
 import android.os.Handler;
@@ -38,6 +39,7 @@ import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.View.OnLongClickListener;
 import android.view.ViewGroup;
+import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.PopupWindow;
 import android.widget.TextView;
@@ -64,8 +66,8 @@ public class CandidateView extends LinearLayout implements OnClickListener, OnLo
     private static final boolean DBG = LatinImeLogger.sDBG;
 
     private static final int NUM_CANDIDATES_IN_STRIP = 3;
-    private final View mExpandCandidatesPane;
+    private final ImageView mExpandCandidatesPane;
-    private final View mCloseCandidatesPane;
+    private final ImageView mCloseCandidatesPane;
     private ViewGroup mCandidatesPane;
     private ViewGroup mCandidatesPaneContainer;
     private View mKeyboardView;
@@ -73,9 +75,13 @@ public class CandidateView extends LinearLayout implements OnClickListener, OnLo
     private final ArrayList<View> mDividers = new ArrayList<View>();
     private final int mCandidatePadding;
     private final int mCandidateStripHeight;
-    private final boolean mConfigCandidateHighlightFontColorEnabled;
     private final CharacterStyle mInvertedForegroundColorSpan;
     private final CharacterStyle mInvertedBackgroundColorSpan;
+    private final int mAutoCorrectHighlight;
+    private static final int AUTO_CORRECT_BOLD = 0x01;
+    private static final int AUTO_CORRECT_UNDERLINE = 0x02;
+    private static final int AUTO_CORRECT_INVERT = 0x04;
+    private static final int AUTO_CORRECT_SPACEBAR_LED = 0x08;
     private final int mColorTypedWord;
     private final int mColorAutoCorrect;
     private final int mColorSuggestedCandidate;
@@ -139,7 +145,11 @@ public class CandidateView extends LinearLayout implements OnClickListener, OnLo
      * @param attrs
      */
     public CandidateView(Context context, AttributeSet attrs) {
-        super(context, attrs);
+        this(context, attrs, R.attr.candidateViewStyle);
+    }
+
+    public CandidateView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
 
         Resources res = context.getResources();
         LayoutInflater inflater = LayoutInflater.from(context);
@@ -151,13 +161,6 @@ public class CandidateView extends LinearLayout implements OnClickListener, OnLo
                 ViewGroup.LayoutParams.WRAP_CONTENT);
         mPreviewPopup.setContentView(mPreviewText);
         mPreviewPopup.setBackgroundDrawable(null);
-        mConfigCandidateHighlightFontColorEnabled =
-                res.getBoolean(R.bool.config_candidate_highlight_font_color_enabled);
-        mColorTypedWord = res.getColor(R.color.candidate_typed_word);
-        mColorAutoCorrect = res.getColor(R.color.candidate_auto_correct);
-        mColorSuggestedCandidate = res.getColor(R.color.candidate_suggested);
-        mInvertedForegroundColorSpan = new ForegroundColorSpan(mColorTypedWord ^ 0x00ffffff);
-        mInvertedBackgroundColorSpan = new BackgroundColorSpan(mColorTypedWord);
 
         mCandidatePadding = res.getDimensionPixelOffset(R.dimen.candidate_padding);
         mCandidateStripHeight = res.getDimensionPixelOffset(R.dimen.candidate_strip_height);
@@ -192,20 +195,35 @@ public class CandidateView extends LinearLayout implements OnClickListener, OnLo
             }
         }
 
-        mExpandCandidatesPane = findViewById(R.id.expand_candidates_pane);
+        final TypedArray a = context.obtainStyledAttributes(
+                attrs, R.styleable.CandidateView, defStyle, R.style.CandidateViewStyle);
+        mAutoCorrectHighlight = a.getInt(R.styleable.CandidateView_autoCorrectHighlight, 0);
+        mColorTypedWord = a.getColor(R.styleable.CandidateView_colorTypedWord, 0);
+        mColorAutoCorrect = a.getColor(R.styleable.CandidateView_colorAutoCorrect, 0);
+        mColorSuggestedCandidate = a.getColor(R.styleable.CandidateView_colorSuggested, 0);
+        mInvertedForegroundColorSpan = new ForegroundColorSpan(mColorTypedWord ^ 0x00ffffff);
+        mInvertedBackgroundColorSpan = new BackgroundColorSpan(mColorTypedWord);
+
+        mExpandCandidatesPane = (ImageView)findViewById(R.id.expand_candidates_pane);
+        mExpandCandidatesPane.setImageDrawable(
+                a.getDrawable(R.styleable.CandidateView_iconExpandPane));
         mExpandCandidatesPane.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View view) {
                 expandCandidatesPane();
             }
         });
-        mCloseCandidatesPane = findViewById(R.id.close_candidates_pane);
+        mCloseCandidatesPane = (ImageView)findViewById(R.id.close_candidates_pane);
+        mCloseCandidatesPane.setImageDrawable(
+                a.getDrawable(R.styleable.CandidateView_iconClosePane));
         mCloseCandidatesPane.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View view) {
                 closeCandidatesPane();
             }
         });
+
+        a.recycle();
     }
 
     /**
@@ -244,19 +262,20 @@ public class CandidateView extends LinearLayout implements OnClickListener, OnLo
     private CharSequence getStyledCandidateWord(CharSequence word, boolean isAutoCorrect) {
         if (!isAutoCorrect)
             return word;
-        final CharacterStyle style = mConfigCandidateHighlightFontColorEnabled ? BOLD_SPAN
-                : UNDERLINE_SPAN;
         final Spannable spannedWord = new SpannableString(word);
-        spannedWord.setSpan(style, 0, word.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
+        if ((mAutoCorrectHighlight & AUTO_CORRECT_BOLD) != 0)
+            spannedWord.setSpan(BOLD_SPAN, 0, word.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
+        if ((mAutoCorrectHighlight & AUTO_CORRECT_UNDERLINE) != 0)
+            spannedWord.setSpan(UNDERLINE_SPAN, 0, word.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
         return spannedWord;
     }
 
     private int getCandidateTextColor(boolean isAutoCorrect, boolean isSuggestedCandidate,
             SuggestedWordInfo info) {
         final int color;
-        if (isAutoCorrect && mConfigCandidateHighlightFontColorEnabled) {
+        if (isAutoCorrect) {
             color = mColorAutoCorrect;
-        } else if (isSuggestedCandidate && mConfigCandidateHighlightFontColorEnabled) {
+        } else if (isSuggestedCandidate) {
             color = mColorSuggestedCandidate;
         } else {
             color = mColorTypedWord;
@@ -388,9 +407,7 @@ public class CandidateView extends LinearLayout implements OnClickListener, OnLo
     }
 
     public void onAutoCorrectionInverted(CharSequence autoCorrectedWord) {
-        // Displaying auto corrected word as inverted is enabled only when highlighting candidate
+        if ((mAutoCorrectHighlight & AUTO_CORRECT_INVERT) == 0)
-        // with color is disabled.
-        if (mConfigCandidateHighlightFontColorEnabled)
             return;
         final TextView tv = mWords.get(1);
         final Spannable word = new SpannableString(autoCorrectedWord);
@@ -403,8 +420,8 @@ public class CandidateView extends LinearLayout implements OnClickListener, OnLo
         mShowingAutoCorrectionInverted = true;
     }
 
-    public boolean isConfigCandidateHighlightFontColorEnabled() {
+    public boolean needsAutoCorrectionSpacebarLed() {
-        return mConfigCandidateHighlightFontColorEnabled;
+        return (mAutoCorrectHighlight & AUTO_CORRECT_SPACEBAR_LED) != 0;
     }
 
     public boolean isShowingAddToDictionaryHint() {

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

@@ -1464,7 +1464,7 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
 
         if (mCandidateView != null) {
             mCandidateView.setSuggestions(words);
-            if (mCandidateView.isConfigCandidateHighlightFontColorEnabled()) {
+            if (mCandidateView.needsAutoCorrectionSpacebarLed()) {
                 mKeyboardSwitcher.onAutoCorrectionStateChanged(
                         words.hasWordAboveAutoCorrectionScoreThreshold());
             }