19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View.OnLongClickListener; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase/** 27df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * This widget provides a simple utility for turning a continued long-press event 28df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * into a series of clicks at some set frequency. There is no actual 'zoom' functionality 29df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * handled by this widget directly. Instead, clients of this API should set up an 30df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * {@link View#setOnClickListener(OnClickListener) onClickListener} to handle 31df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * zoom functionality. That click listener is called on a frequency 32df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * determined by {@link #setZoomSpeed(long)} whenever the user long-presses 33df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * on the ZoomButton. 34df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * 35df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * @deprecated Use other means to handle this functionality. This widget is merely a 36df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * simple wrapper around a long-press handler. 37df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase */ 38df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase@Deprecated 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class ZoomButton extends ImageButton implements OnLongClickListener { 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Runnable mRunnable = new Runnable() { 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 430500b3cfda5192efc09d6d4344b0c6c785c0a815Dianne Hackborn if (hasOnClickListeners() && mIsInLongpress && isEnabled()) { 440500b3cfda5192efc09d6d4344b0c6c785c0a815Dianne Hackborn callOnClick(); 45d0374c6b25c3ad8e638827bd8190553f80d9bf22John Reck postDelayed(this, mZoomSpeed); 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private long mZoomSpeed = 1000; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsInLongpress; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ZoomButton(Context context) { 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, null); 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ZoomButton(Context context, AttributeSet attrs) { 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, 0); 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public ZoomButton(Context context, AttributeSet attrs, int defStyleAttr) { 62617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 63617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 64617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 65617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public ZoomButton(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 66617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setOnLongClickListener(this); 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent event) { 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((event.getAction() == MotionEvent.ACTION_CANCEL) 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (event.getAction() == MotionEvent.ACTION_UP)) { 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsInLongpress = false; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onTouchEvent(event); 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 78df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase 79df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase /** 80df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * Sets the delay between calls to the widget's {@link View#setOnClickListener(OnClickListener) 81df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * onClickListener}. 82df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * 83df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase * @param speed The delay between calls to the click listener, in milliseconds 84df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase */ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setZoomSpeed(long speed) { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mZoomSpeed = speed; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 89df103321813a4a518e44ae46f85a74f060cfc3d5Chet Haase @Override 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onLongClick(View v) { 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsInLongpress = true; 92d0374c6b25c3ad8e638827bd8190553f80d9bf22John Reck post(mRunnable); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsInLongpress = false; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setEnabled(boolean enabled) { 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!enabled) { 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* If we're being disabled reset the state back to unpressed 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as disabled views don't get events and therefore we won't 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * get the up event to reset the state. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.setEnabled(enabled); 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean dispatchUnhandledMove(View focused, int direction) { 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearFocus(); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.dispatchUnhandledMove(focused, direction); 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1208a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 1218a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 122a7bb6fbeab933326d58aa806d8194b7b13239d34Dianne Hackborn public CharSequence getAccessibilityClassName() { 123a7bb6fbeab933326d58aa806d8194b7b13239d34Dianne Hackborn return ZoomButton.class.getName(); 1248a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 126