1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.inputmethod.keyboard; 18 19 import android.graphics.Matrix; 20 import android.graphics.RectF; 21 22 /** 23 * This interface defines how UI operations required for {@link TextDecorator} are delegated to 24 * the actual UI implementation class. 25 */ 26 public interface TextDecoratorUiOperator { 27 /** 28 * Called to notify that the UI is ready to be disposed. 29 */ 30 void disposeUi(); 31 32 /** 33 * Called when the UI should become invisible. 34 */ 35 void hideUi(); 36 37 /** 38 * Called to set the new click handler. 39 * @param onClickListener the callback object whose {@link Runnable#run()} should be called when 40 * the indicator is clicked. 41 */ 42 void setOnClickListener(final Runnable onClickListener); 43 44 /** 45 * Called when the layout should be updated. 46 * @param matrix The matrix that transforms the local coordinates into the screen coordinates. 47 * @param composingTextBounds The bounding box of the composing text, in local coordinates. 48 * @param useRtlLayout {@code true} if the indicator should be optimized for RTL layout. 49 */ 50 void layoutUi(final Matrix matrix, final RectF composingTextBounds, final boolean useRtlLayout); 51 } 52
