84 lines
3 KiB
Java
84 lines
3 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.event;
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import com.android.inputmethod.latin.settings.SettingsValues;
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/**
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* An object encapsulating a single transaction for input.
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*/
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public class InputTransaction {
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// UPDATE_LATER is stronger than UPDATE_NOW. The reason for this is, if we have to update later,
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// it's because something will change that we can't evaluate now, which means that even if we
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// re-evaluate now we'll have to do it again later. The only case where that wouldn't apply
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// would be if we needed to update now to find out the new state right away, but then we
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// can't do it with this deferred mechanism anyway.
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public static final int SHIFT_NO_UPDATE = 0;
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public static final int SHIFT_UPDATE_NOW = 1;
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public static final int SHIFT_UPDATE_LATER = 2;
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// Initial conditions
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public final SettingsValues mSettingsValues;
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public final Event mEvent;
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public final long mTimestamp;
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public final int mSpaceState;
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public final int mShiftState;
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// Outputs
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private int mRequiredShiftUpdate = SHIFT_NO_UPDATE;
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private boolean mRequiresUpdateSuggestions = false;
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public InputTransaction(final SettingsValues settingsValues, final Event event,
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final long timestamp, final int spaceState, final int shiftState) {
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mSettingsValues = settingsValues;
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mEvent = event;
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mTimestamp = timestamp;
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mSpaceState = spaceState;
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mShiftState = shiftState;
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}
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/**
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* Indicate that this transaction requires some type of shift update.
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* @param updateType What type of shift update this requires.
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*/
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public void requireShiftUpdate(final int updateType) {
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mRequiredShiftUpdate = Math.max(mRequiredShiftUpdate, updateType);
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}
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/**
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* Gets what type of shift update this transaction requires.
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* @return The shift update type.
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*/
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public int getRequiredShiftUpdate() {
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return mRequiredShiftUpdate;
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}
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/**
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* Indicate that this transaction requires updating the suggestions.
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*/
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public void setRequiresUpdateSuggestions() {
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mRequiresUpdateSuggestions = true;
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}
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/**
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* Find out whether this transaction requires updating the suggestions.
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* @return Whether this transaction requires updating the suggestions.
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*/
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public boolean requiresUpdateSuggestions() {
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return mRequiresUpdateSuggestions;
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}
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}
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