001: /*
002: *
003: *
004: * Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
005: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006: *
007: * This program is free software; you can redistribute it and/or
008: * modify it under the terms of the GNU General Public License version
009: * 2 only, as published by the Free Software Foundation.
010: *
011: * This program is distributed in the hope that it will be useful, but
012: * WITHOUT ANY WARRANTY; without even the implied warranty of
013: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014: * General Public License version 2 for more details (a copy is
015: * included at /legal/license.txt).
016: *
017: * You should have received a copy of the GNU General Public License
018: * version 2 along with this work; if not, write to the Free Software
019: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020: * 02110-1301 USA
021: *
022: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023: * Clara, CA 95054 or visit www.sun.com if you need additional
024: * information or have any questions.
025: */
026:
027: package com.sun.midp.automation;
028:
029: import com.sun.midp.main.*;
030: import com.sun.midp.events.*;
031:
032: /**
033: * Class controlling foreground
034: */
035: final class AutoForegroundStateController implements
036: AutoDisplayControllerListener {
037:
038: /** MIDlet proxy list reference. */
039: private MIDletProxyList midletProxyList;
040:
041: /** List of AutoMIDletInfo for MIDlet's we are interested in */
042: private AutoMIDletInfoList midletsInfo;
043:
044: /** Display controller */
045: private AutoDisplayController displayController;
046:
047: /** Events producer */
048: private MIDletControllerEventProducer midletControllerEventProducer;
049:
050: /** The one and only AutoMIDletStateController instance */
051: private static AutoForegroundStateController stateController = null;
052:
053: /**
054: * Private constructor to prevent direct creation of instances.
055: */
056: private AutoForegroundStateController() {
057: midletProxyList = MIDletProxyList.getMIDletProxyList();
058:
059: displayController = new AutoDisplayController(midletProxyList);
060: displayController.setListener(this );
061: midletProxyList.setDisplayController(displayController);
062:
063: midletControllerEventProducer = AutomationInitializer
064: .getMIDletControllerEventProducer();
065:
066: midletsInfo = AutoMIDletInfoList.getMIDletInfoList();
067: }
068:
069: /**
070: * Gets AutoMIDletStateController instance.
071: *
072: * @return AutoMIDletStateController instance
073: */
074: synchronized static AutoForegroundStateController getForegroundStateController() {
075:
076: if (stateController == null) {
077: stateController = new AutoForegroundStateController();
078: }
079:
080: return stateController;
081: }
082:
083: /**
084: * Initiates switching MIDlet to specified state.
085: *
086: * @param midlet AutoMIDletImpl instance representing MIDlet to switch
087: * @param state state to switch to
088: */
089: void switchTo(AutoMIDletImpl midlet, AutoMIDletForegroundState state) {
090: MIDletProxy midletProxy = midletsInfo.findMIDletProxy(midlet);
091: if (midletProxy != null) {
092: if (state == AutoMIDletForegroundState.FOREGROUND) {
093: int suiteID = midletProxy.getSuiteId();
094: String className = midletProxy.getClassName();
095:
096: midletControllerEventProducer
097: .sendSetForegroundByNameRequestEvent(suiteID,
098: className);
099: }
100: }
101: }
102:
103: /**
104: * AutoDisplayControllerListener interface implementation.
105: */
106:
107: /**
108: * Called when foreground MIDlet is about to be changed.
109: *
110: * @param oldForeground MIDlet currently in foreground
111: * @param newForeground MIDlet getting foreground
112: */
113: public void foregroundMIDletChanged(MIDletProxy oldForeground,
114: MIDletProxy newForeground) {
115:
116: if (oldForeground != null) {
117: AutoMIDletImpl midlet = midletsInfo
118: .findMIDlet(oldForeground);
119: if (midlet != null) {
120: midlet
121: .stateChanged(AutoMIDletForegroundState.BACKGROUND);
122: }
123: }
124:
125: if (newForeground != null) {
126: AutoMIDletImpl midlet = midletsInfo
127: .findMIDlet(newForeground);
128: if (midlet != null) {
129: midlet
130: .stateChanged(AutoMIDletForegroundState.FOREGROUND);
131: }
132: }
133: }
134:
135: /**
136: * AutoForegroundRequestEventConsumer interface implementation.
137: */
138:
139: /**
140: * Processes AUTO_FOREGROUND_REQUEST event
141: *
142: * @param midletSuiteID MIDlet's suite ID
143: * @param midletClassName MIDlet's class name
144: */
145: public void handleForegroundRequestEvent(int midletSuiteID,
146: String midletClassName) {
147:
148: MIDletProxy midletProxy = midletProxyList.findMIDletProxy(
149: midletSuiteID, midletClassName);
150:
151: if (midletProxy != null) {
152: midletProxyList.setForegroundMIDlet(midletProxy);
153: }
154: }
155: }
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