1 files changed, 0 insertions, 221 deletions
diff --git a/java/src/com/android/inputmethod/latin/inputlogic/InputLogicHandler.java b/java/src/com/android/inputmethod/latin/inputlogic/InputLogicHandler.java
deleted file mode 100644
index ddc4ad99c..000000000
--- a/java/src/com/android/inputmethod/latin/inputlogic/InputLogicHandler.java
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.inputmethod.latin.inputlogic;
-
-import android.os.Handler;
-import android.os.HandlerThread;
-import android.os.Message;
-
-import com.android.inputmethod.compat.LooperCompatUtils;
-import com.android.inputmethod.latin.LatinIME;
-import com.android.inputmethod.latin.SuggestedWords;
-import com.android.inputmethod.latin.Suggest.OnGetSuggestedWordsCallback;
-import com.android.inputmethod.latin.common.InputPointers;
-
-/**
- * A helper to manage deferred tasks for the input logic.
- */
-class InputLogicHandler implements Handler.Callback {
-    final Handler mNonUIThreadHandler;
-    // TODO: remove this reference.
-    final LatinIME mLatinIME;
-    final InputLogic mInputLogic;
-    private final Object mLock = new Object();
-    private boolean mInBatchInput; // synchronized using {@link #mLock}.
-
-    private static final int MSG_GET_SUGGESTED_WORDS = 1;
-
-    // A handler that never does anything. This is used for cases where events come before anything
-    // is initialized, though probably only the monkey can actually do this.
-    public static final InputLogicHandler NULL_HANDLER = new InputLogicHandler() {
-        @Override
-        public void reset() {}
-        @Override
-        public boolean handleMessage(final Message msg) { return true; }
-        @Override
-        public void onStartBatchInput() {}
-        @Override
-        public void onUpdateBatchInput(final InputPointers batchPointers,
-                final int sequenceNumber) {}
-        @Override
-        public void onCancelBatchInput() {}
-        @Override
-        public void updateTailBatchInput(final InputPointers batchPointers,
-                final int sequenceNumber) {}
-        @Override
-        public void getSuggestedWords(final int sessionId, final int sequenceNumber,
-                final OnGetSuggestedWordsCallback callback) {}
-    };
-
-    InputLogicHandler() {
-        mNonUIThreadHandler = null;
-        mLatinIME = null;
-        mInputLogic = null;
-    }
-
-    public InputLogicHandler(final LatinIME latinIME, final InputLogic inputLogic) {
-        final HandlerThread handlerThread = new HandlerThread(
-                InputLogicHandler.class.getSimpleName());
-        handlerThread.start();
-        mNonUIThreadHandler = new Handler(handlerThread.getLooper(), this);
-        mLatinIME = latinIME;
-        mInputLogic = inputLogic;
-    }
-
-    public void reset() {
-        mNonUIThreadHandler.removeCallbacksAndMessages(null);
-    }
-
-    // In unit tests, we create several instances of LatinIME, which results in several instances
-    // of InputLogicHandler. To avoid these handlers lingering, we call this.
-    public void destroy() {
-        LooperCompatUtils.quitSafely(mNonUIThreadHandler.getLooper());
-    }
-
-    /**
-     * Handle a message.
-     * @see android.os.Handler.Callback#handleMessage(android.os.Message)
-     */
-    // Called on the Non-UI handler thread by the Handler code.
-    @Override
-    public boolean handleMessage(final Message msg) {
-        switch (msg.what) {
-            case MSG_GET_SUGGESTED_WORDS:
-                mLatinIME.getSuggestedWords(msg.arg1 /* inputStyle */,
-                        msg.arg2 /* sequenceNumber */, (OnGetSuggestedWordsCallback) msg.obj);
-                break;
-        }
-        return true;
-    }
-
-    // Called on the UI thread by InputLogic.
-    public void onStartBatchInput() {
-        synchronized (mLock) {
-            mInBatchInput = true;
-        }
-    }
-
-    public boolean isInBatchInput() {
-        return mInBatchInput;
-    }
-
-    /**
-     * Fetch suggestions corresponding to an update of a batch input.
-     * @param batchPointers the updated pointers, including the part that was passed last time.
-     * @param sequenceNumber the sequence number associated with this batch input.
-     * @param isTailBatchInput true if this is the end of a batch input, false if it's an update.
-     */
-    // This method can be called from any thread and will see to it that the correct threads
-    // are used for parts that require it. This method will send a message to the Non-UI handler
-    // thread to pull suggestions, and get the inlined callback to get called on the Non-UI
-    // handler thread. If this is the end of a batch input, the callback will then proceed to
-    // send a message to the UI handler in LatinIME so that showing suggestions can be done on
-    // the UI thread.
-    private void updateBatchInput(final InputPointers batchPointers,
-            final int sequenceNumber, final boolean isTailBatchInput) {
-        synchronized (mLock) {
-            if (!mInBatchInput) {
-                // Batch input has ended or canceled while the message was being delivered.
-                return;
-            }
-            mInputLogic.mWordComposer.setBatchInputPointers(batchPointers);
-            final OnGetSuggestedWordsCallback callback = new OnGetSuggestedWordsCallback() {
-                @Override
-                public void onGetSuggestedWords(final SuggestedWords suggestedWords) {
-                    showGestureSuggestionsWithPreviewVisuals(suggestedWords, isTailBatchInput);
-                }
-            };
-            getSuggestedWords(isTailBatchInput ? SuggestedWords.INPUT_STYLE_TAIL_BATCH
-                    : SuggestedWords.INPUT_STYLE_UPDATE_BATCH, sequenceNumber, callback);
-        }
-    }
-
-    void showGestureSuggestionsWithPreviewVisuals(final SuggestedWords suggestedWordsForBatchInput,
-            final boolean isTailBatchInput) {
-        final SuggestedWords suggestedWordsToShowSuggestions;
-        // We're now inside the callback. This always runs on the Non-UI thread,
-        // no matter what thread updateBatchInput was originally called on.
-        if (suggestedWordsForBatchInput.isEmpty()) {
-            // Use old suggestions if we don't have any new ones.
-            // Previous suggestions are found in InputLogic#mSuggestedWords.
-            // Since these are the most recent ones and we just recomputed
-            // new ones to update them, then the previous ones are there.
-            suggestedWordsToShowSuggestions = mInputLogic.mSuggestedWords;
-        } else {
-            suggestedWordsToShowSuggestions = suggestedWordsForBatchInput;
-        }
-        mLatinIME.mHandler.showGesturePreviewAndSuggestionStrip(suggestedWordsToShowSuggestions,
-                isTailBatchInput /* dismissGestureFloatingPreviewText */);
-        if (isTailBatchInput) {
-            mInBatchInput = false;
-            // The following call schedules onEndBatchInputInternal
-            // to be called on the UI thread.
-            mLatinIME.mHandler.showTailBatchInputResult(suggestedWordsToShowSuggestions);
-        }
-    }
-
-    /**
-     * Update a batch input.
-     *
-     * This fetches suggestions and updates the suggestion strip and the floating text preview.
-     *
-     * @param batchPointers the updated batch pointers.
-     * @param sequenceNumber the sequence number associated with this batch input.
-     */
-    // Called on the UI thread by InputLogic.
-    public void onUpdateBatchInput(final InputPointers batchPointers,
-            final int sequenceNumber) {
-        updateBatchInput(batchPointers, sequenceNumber, false /* isTailBatchInput */);
-    }
-
-    /**
-     * Cancel a batch input.
-     *
-     * Note that as opposed to updateTailBatchInput, we do the UI side of this immediately on the
-     * same thread, rather than get this to call a method in LatinIME. This is because
-     * canceling a batch input does not necessitate the long operation of pulling suggestions.
-     */
-    // Called on the UI thread by InputLogic.
-    public void onCancelBatchInput() {
-        synchronized (mLock) {
-            mInBatchInput = false;
-        }
-    }
-
-    /**
-     * Trigger an update for a tail batch input.
-     *
-     * A tail batch input is the last update for a gesture, the one that is triggered after the
-     * user lifts their finger. This method schedules fetching suggestions on the non-UI thread,
-     * then when the suggestions are computed it comes back on the UI thread to update the
-     * suggestion strip, commit the first suggestion, and dismiss the floating text preview.
-     *
-     * @param batchPointers the updated batch pointers.
-     * @param sequenceNumber the sequence number associated with this batch input.
-     */
-    // Called on the UI thread by InputLogic.
-    public void updateTailBatchInput(final InputPointers batchPointers,
-            final int sequenceNumber) {
-        updateBatchInput(batchPointers, sequenceNumber, true /* isTailBatchInput */);
-    }
-
-    public void getSuggestedWords(final int inputStyle, final int sequenceNumber,
-            final OnGetSuggestedWordsCallback callback) {
-        mNonUIThreadHandler.obtainMessage(
-                MSG_GET_SUGGESTED_WORDS, inputStyle, sequenceNumber, callback).sendToTarget();
-    }
-}