Source Code Cross Referenced for ImageTest.java in  » Ajax » GWT » com » google » gwt » user » client » ui » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Ajax » GWT » com.google.gwt.user.client.ui 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2007 Google Inc.
003:         *
004:         * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005:         * use this file except in compliance with the License. You may obtain a copy of
006:         * the License at
007:         *
008:         * http://www.apache.org/licenses/LICENSE-2.0
009:         *
010:         * Unless required by applicable law or agreed to in writing, software
011:         * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012:         * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013:         * License for the specific language governing permissions and limitations under
014:         * the License.
015:         */
016:        package com.google.gwt.user.client.ui;
017:
018:        import com.google.gwt.junit.client.GWTTestCase;
019:        import com.google.gwt.user.client.Timer;
020:
021:        import java.util.ArrayList;
022:
023:        /**
024:         * Tests for the Image widget. Images in both clipped mode and unclipped mode
025:         * are tested, along with the transitions between the two modes.
026:         */
027:        public class ImageTest extends GWTTestCase {
028:
029:            /**
030:             * Helper method that allows us to 'peek' at the private <code>state</code>
031:             * field in the Image object, and call the <code>state.getStateName()</code>
032:             * method.
033:             *
034:             * @param image The image instance
035:             * @return "unclipped" if image is in the unclipped state, or
036:             *         "clipped" if the image is in the clipped state
037:             */
038:            public static native String getCurrentImageStateName(Image image) /*-{
039:               var imgState = image.@com.google.gwt.user.client.ui.Image::state;
040:               return imgState.@com.google.gwt.user.client.ui.Image.State::getStateName() ();
041:             }-*/;
042:
043:            public String getModuleName() {
044:                return "com.google.gwt.user.UserTest";
045:            }
046:
047:            /**
048:             * Tests the transition from the unclipped state to the clipped state
049:             */
050:            /* This test is commented out because of issue #863
051:            public void testChangeImageToClipped() {
052:              final ArrayList onloadEventFireCounter = new ArrayList();
053:              final Image image = new Image("counting-forwards.png");
054:              assertEquals("unclipped", getCurrentImageStateName(image));
055:
056:              image.addLoadListener(new LoadListener() {
057:                public void onError(Widget sender) {
058:                  fail("The image " + ((Image) sender).getUrl() + " failed to load.");
059:                }
060:
061:                public void onLoad(Widget sender) {
062:                  onloadEventFireCounter.add(new Object());
063:
064:                  if (getCurrentImageStateName(image).equals("unclipped")) {
065:                    image.setVisibleRect(12, 13, 8, 8);
066:                  }
067:                }
068:              });
069:
070:              RootPanel.get().add(image);
071:              delayTestFinish(2000);
072:
073:              Timer t = new Timer() {
074:                public void run() {
075:                  assertEquals(12, image.getOriginLeft());
076:                  assertEquals(13, image.getOriginTop());
077:                  assertEquals(8, image.getWidth());
078:                  assertEquals(8, image.getHeight());
079:                  assertEquals("clipped", getCurrentImageStateName(image));
080:                  assertEquals(2, onloadEventFireCounter.size());
081:                  finishTest();
082:                }
083:              };
084:
085:              t.schedule(1000);
086:            }
087:             */
088:
089:            /**
090:             * Tests the transition from the clipped state to the unclipped state.
091:             */
092:            public void testChangeClippedImageToUnclipped() {
093:                final ArrayList onloadEventFireCounter = new ArrayList();
094:                final Image image = new Image("counting-forwards.png", 12, 13,
095:                        8, 8);
096:                assertEquals("clipped", getCurrentImageStateName(image));
097:
098:                image.addLoadListener(new LoadListener() {
099:                    public void onError(Widget sender) {
100:                        fail("The image " + ((Image) sender).getUrl()
101:                                + " failed to load.");
102:                    }
103:
104:                    public void onLoad(Widget sender) {
105:                        onloadEventFireCounter.add(new Object());
106:                    }
107:                });
108:
109:                RootPanel.get().add(image);
110:                delayTestFinish(2000);
111:
112:                image.setUrl("counting-forwards.png");
113:
114:                Timer t = new Timer() {
115:                    public void run() {
116:                        assertEquals(0, image.getOriginLeft());
117:                        assertEquals(0, image.getOriginTop());
118:                        assertEquals(32, image.getWidth());
119:                        assertEquals(32, image.getHeight());
120:                        assertEquals("unclipped",
121:                                getCurrentImageStateName(image));
122:                        assertEquals(2, onloadEventFireCounter.size());
123:                        finishTest();
124:                    }
125:                };
126:
127:                t.schedule(1000);
128:            }
129:
130:            /**
131:             *  Tests the creation of an image in unclipped mode
132:             */
133:            /* This test is commented out because of issue #864 and issue #863
134:            public void testCreateImage() {
135:              final ArrayList onloadEventFireCounter = new ArrayList();
136:              final Image image = new Image("counting-forwards.png");
137:
138:              image.addLoadListener(new LoadListener() {
139:                public void onError(Widget sender) {
140:                  fail("The image " + ((Image) sender).getUrl() + " failed to load.");
141:                }
142:
143:                public void onLoad(Widget sender) {
144:                  onloadEventFireCounter.add(new Object());
145:                  assertEquals(32, image.getWidth());
146:                  assertEquals(32, image.getHeight());
147:                }
148:              });
149:
150:              RootPanel.get().add(image);
151:              delayTestFinish(2000);
152:
153:              assertEquals(0, image.getOriginLeft());
154:              assertEquals(0, image.getOriginTop());
155:              assertEquals("unclipped", getCurrentImageStateName(image));
156:
157:              Timer t = new Timer() {
158:                public void run() {
159:                  assertEquals(1, onloadEventFireCounter.size());
160:                  finishTest();
161:                }
162:              };
163:
164:              t.schedule(1000);
165:            }
166:             */
167:
168:            /**
169:             * Tests the creation of an image in clipped mode.
170:             */
171:            public void testCreateClippedImage() {
172:                final ArrayList onloadEventFireCounter = new ArrayList();
173:                final Image image = new Image("counting-forwards.png", 16, 16,
174:                        16, 16);
175:
176:                image.addLoadListener(new LoadListener() {
177:                    public void onError(Widget sender) {
178:                        fail("The image " + ((Image) sender).getUrl()
179:                                + " failed to load.");
180:                    }
181:
182:                    public void onLoad(Widget sender) {
183:                        onloadEventFireCounter.add(new Object());
184:                        assertEquals(16, image.getWidth());
185:                        assertEquals(16, image.getHeight());
186:                    }
187:                });
188:
189:                RootPanel.get().add(image);
190:                delayTestFinish(2000);
191:
192:                assertEquals(16, image.getOriginLeft());
193:                assertEquals(16, image.getOriginTop());
194:                assertEquals("clipped", getCurrentImageStateName(image));
195:
196:                Timer t = new Timer() {
197:                    public void run() {
198:                        assertEquals(1, onloadEventFireCounter.size());
199:                        finishTest();
200:                    }
201:                };
202:
203:                t.schedule(1000);
204:            }
205:
206:            /**
207:             * Tests the firing of onload events when 
208:             * {@link com.google.gwt.user.client.ui.Image#setUrl(String)}
209:             * is called on an unclipped image.
210:             */
211:            /* This test has been commented out because of issue #863
212:            public void testSetUrlAndLoadEventsOnUnclippedImage() {
213:
214:              final ArrayList onloadEventFireCounter = new ArrayList();
215:              final Image image = new Image("counting-backwards.png");
216:
217:              image.addLoadListener(new LoadListener() {
218:                public void onError(Widget sender) {
219:                  fail("The image " + ((Image) sender).getUrl() + " failed to load.");
220:                }
221:
222:                public void onLoad(Widget sender) {
223:
224:                  onloadEventFireCounter.add(new Object());
225:
226:                  if (onloadEventFireCounter.size() < 4) {
227:                    image.setUrl("counting-forwards.png");
228:                  }
229:                }
230:              });
231:
232:              RootPanel.get().add(image);
233:              delayTestFinish(2000);
234:
235:              Timer t = new Timer() {
236:                public void run() {
237:                  assertEquals(4, onloadEventFireCounter.size());
238:                  finishTest();
239:                }
240:              };
241:
242:              t.schedule(1000);
243:            }
244:             */
245:
246:            /**
247:             * Tests the behavior of
248:             * {@link com.google.gwt.user.client.ui.Image#setUrlAndVisibleRect(String,int,int,int,int)}
249:             * on a clipped image.
250:             */
251:            public void testSetUrlAndVisibleRectOnClippedImage() {
252:                final ArrayList onloadEventFireCounter = new ArrayList();
253:                final Image image = new Image("counting-backwards.png", 12, 12,
254:                        12, 12);
255:
256:                image.addLoadListener(new LoadListener() {
257:                    public void onError(Widget sender) {
258:                        fail("The image " + ((Image) sender).getUrl()
259:                                + " failed to load.");
260:                    }
261:
262:                    public void onLoad(Widget sender) {
263:                        onloadEventFireCounter.add(new Object());
264:                    }
265:                });
266:
267:                RootPanel.get().add(image);
268:                delayTestFinish(2000);
269:
270:                assertEquals("clipped", getCurrentImageStateName(image));
271:
272:                image.setUrlAndVisibleRect("counting-forwards.png", 0, 16, 16,
273:                        16);
274:
275:                Timer t = new Timer() {
276:                    public void run() {
277:                        assertEquals(0, image.getOriginLeft());
278:                        assertEquals(16, image.getOriginTop());
279:                        assertEquals(16, image.getWidth());
280:                        assertEquals(16, image.getHeight());
281:                        assertEquals("clipped", getCurrentImageStateName(image));
282:                        assertEquals(2, onloadEventFireCounter.size());
283:                        finishTest();
284:                    }
285:                };
286:
287:                t.schedule(1000);
288:            }
289:
290:            /**
291:             * Tests the behavior of
292:             * <code>setUrlAndVisibleRect(String, int, int, int, int)</code> method on
293:             * an unclipped image, which causes a state transition to the clipped state.
294:             */
295:            /* This test has been commented out because of issue #863
296:            public void testSetUrlAndVisibleRectOnUnclippedImage() {
297:              final ArrayList onloadEventFireCounter = new ArrayList();
298:              final Image image =
299:                  new Image("counting-backwards.png");
300:
301:              image.addLoadListener(new LoadListener() {
302:                public void onError(Widget sender) {
303:                  fail("The image " + ((Image) sender).getUrl() + " failed to load.");
304:                }
305:
306:                public void onLoad(Widget sender) {
307:                  onloadEventFireCounter.add(new Object());
308:                  if (getCurrentImageStateName(image).equals("unclipped")) {
309:                    image.setUrlAndVisibleRect("counting-forwards.png",
310:                        0, 16, 16, 16);
311:                  }
312:                }
313:              });
314:
315:              RootPanel.get().add(image);
316:              delayTestFinish(2000);
317:
318:              assertEquals("unclipped", getCurrentImageStateName(image));
319:
320:              Timer t = new Timer() {
321:                public void run() {
322:                  assertEquals(0, image.getOriginLeft());
323:                  assertEquals(16, image.getOriginTop());
324:                  assertEquals(16, image.getWidth());
325:                  assertEquals(16, image.getHeight());
326:                  assertEquals("clipped", getCurrentImageStateName(image));
327:                  assertEquals(2, onloadEventFireCounter.size());
328:                  finishTest();
329:                }
330:              };
331:
332:              t.schedule(1000);
333:            }
334:             */
335:
336:            /**
337:             * Tests the firing of onload events when calling
338:             * {@link com.google.gwt.user.client.ui.Image#setVisibleRect(int,int,int,int)}
339:             * on a clipped image.
340:             */
341:            public void testSetVisibleRectAndLoadEventsOnClippedImage() {
342:                final ArrayList onloadEventFireCounter = new ArrayList();
343:                final Image image = new Image("counting-backwards.png", 16, 16,
344:                        16, 16);
345:
346:                image.addLoadListener(new LoadListener() {
347:                    public void onError(Widget sender) {
348:                        fail("The image " + ((Image) sender).getUrl()
349:                                + " failed to load.");
350:                    }
351:
352:                    public void onLoad(Widget sender) {
353:                        onloadEventFireCounter.add(new Object());
354:                    }
355:                });
356:
357:                RootPanel.get().add(image);
358:                delayTestFinish(2000);
359:
360:                image.setVisibleRect(0, 0, 16, 16);
361:                image.setVisibleRect(0, 0, 16, 16);
362:                image.setVisibleRect(16, 0, 16, 16);
363:                image.setVisibleRect(16, 8, 8, 8);
364:
365:                Timer t = new Timer() {
366:                    public void run() {
367:                        assertEquals(4, onloadEventFireCounter.size());
368:                        finishTest();
369:                    }
370:                };
371:
372:                t.schedule(1000);
373:            }
374:        }
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