[WIP][DO NOT LAND] Componentize spellcheck

chrome/android/java/src/org/chromium/chrome/browser/spellchecker/SpellCheckerSessionBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/spellchecker/SpellCheckerSessionBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/spellchecker/SpellCheckerSessionBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/spellchecker/SpellCheckerSessionBridge.java
deleted file mode 100644
index dcab14122e9947f1846ad2112c25285c715e4ed0..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/spellchecker/SpellCheckerSessionBridge.java
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright 2015 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.spellchecker;
-
-import android.content.Context;
-import android.view.textservice.SentenceSuggestionsInfo;
-import android.view.textservice.SpellCheckerSession;
-import android.view.textservice.SpellCheckerSession.SpellCheckerSessionListener;
-import android.view.textservice.SuggestionsInfo;
-import android.view.textservice.TextInfo;
-import android.view.textservice.TextServicesManager;
-
-import org.chromium.base.ContextUtils;
-import org.chromium.base.annotations.CalledByNative;
-
-import java.util.ArrayList;
-
-/**
- * JNI interface for native SpellCheckerSessionBridge to use Android's spellchecker.
- */
-public class SpellCheckerSessionBridge implements SpellCheckerSessionListener {
-    private final long mNativeSpellCheckerSessionBridge;
-    private final SpellCheckerSession mSpellCheckerSession;
-
-    /**
-     * Constructs a SpellCheckerSessionBridge object as well as its SpellCheckerSession object.
-     * @param nativeSpellCheckerSessionBridge Pointer to the native SpellCheckerSessionBridge.
-     */
-    private SpellCheckerSessionBridge(long nativeSpellCheckerSessionBridge) {
-        mNativeSpellCheckerSessionBridge = nativeSpellCheckerSessionBridge;
-
-        Context context = ContextUtils.getApplicationContext();
-        final TextServicesManager textServicesManager =
-                (TextServicesManager) context.getSystemService(
-                        Context.TEXT_SERVICES_MANAGER_SERVICE);
-
-        // This combination of parameters will cause the spellchecker to be based off of
-        // the language specified at "Settings > Language & input > Spell checker > Language".
-        // If that setting is set to "Use system language" and the system language is not on the
-        // list of supported spellcheck languages, this call will return null.  This call will also
-        // return null if the user has turned spellchecking off at "Settings > Language & input >
-        // Spell checker".
-        mSpellCheckerSession = textServicesManager.newSpellCheckerSession(null, null, this, true);
-    }
-
-    /**
-     * Returns a new SpellCheckerSessionBridge object if the internal SpellCheckerSession object
-     * was able to be created.
-     * @param nativeSpellCheckerSessionBridge Pointer to the native SpellCheckerSessionBridge.
-     */
-    @CalledByNative
-    private static SpellCheckerSessionBridge create(long nativeSpellCheckerSessionBridge) {
-        SpellCheckerSessionBridge bridge =
-                new SpellCheckerSessionBridge(nativeSpellCheckerSessionBridge);
-        if (bridge.mSpellCheckerSession == null) {
-            return null;
-        }
-        return bridge;
-    }
-
-    /**
-     * Queries the input text against the SpellCheckerSession.
-     * @param text Text to be queried.
-     */
-    @CalledByNative
-    private void requestTextCheck(String text) {
-        // SpellCheckerSession thinks that any word ending with a period is a typo.
-        // We trim the period off before sending the text for spellchecking in order to avoid
-        // unnecessary red underlines when the user ends a sentence with a period.
-        // Filed as an Android bug here: https://code.google.com/p/android/issues/detail?id=183294
-        if (text.endsWith(".")) {
-            text = text.substring(0, text.length() - 1);
-        }
-        mSpellCheckerSession.getSentenceSuggestions(new TextInfo[] {new TextInfo(text)}, 0);
-    }
-
-    /**
-     * Checks for typos and sends results back to native through a JNI call.
-     * @param results Results returned by the Android spellchecker.
-     */
-    @Override
-    public void onGetSentenceSuggestions(SentenceSuggestionsInfo[] results) {
-        ArrayList<Integer> offsets = new ArrayList<Integer>();
-        ArrayList<Integer> lengths = new ArrayList<Integer>();
-
-        for (SentenceSuggestionsInfo result : results) {
-            for (int i = 0; i < result.getSuggestionsCount(); i++) {
-                // If a word looks like a typo, record its offset and length.
-                if ((result.getSuggestionsInfoAt(i).getSuggestionsAttributes()
-                        & SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO)
-                        == SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO) {
-                    offsets.add(result.getOffsetAt(i));
-                    lengths.add(result.getLengthAt(i));
-                }
-            }
-        }
-
-        nativeProcessSpellCheckResults(mNativeSpellCheckerSessionBridge,
-                convertListToArray(offsets), convertListToArray(lengths));
-    }
-
-    /**
-     * Helper method to convert an ArrayList of Integer objects into an array of primitive ints
-     * for easier JNI handling of these objects on the native side.
-     * @param list List to be converted to an array.
-     */
-    private int[] convertListToArray(ArrayList<Integer> list) {
-        int[] array = new int[list.size()];
-        for (int index = 0; index < array.length; index++) {
-            array[index] = list.get(index).intValue();
-        }
-        return array;
-    }
-
-    @Override
-    public void onGetSuggestions(SuggestionsInfo[] results) {}
-
-    private native void nativeProcessSpellCheckResults(
-            long nativeSpellCheckerSessionBridge, int[] offsets, int[] lengths);
-}