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Side by Side Diff: chrome/third_party/jstemplate/jstemplate_example.js

Issue 11971042: Move chrome\third_party\jstemplate to third_party\jstemplate since it's used from ui\. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: sync Created 7 years, 11 months ago
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1 // Copyright 2006 Google Inc.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
12 // implied. See the License for the specific language governing
13 // permissions and limitations under the License.
14 /**
15 * @pageoverview Some logic for the jstemplates test pages.
16 *
17 * @author Steffen Meschkat (mesch@google.com)
18 */
19
20
21 function elem(id) {
22 return document.getElementById(id);
23 }
24
25 /**
26 * Are we actively profiling JstProcessor?
27 * @type boolean
28 */
29 var profiling = false;
30
31 logHtml = function(html) {
32 elem('log').innerHTML += html + '<br/>';
33 };
34
35
36 /**
37 * Initializer for interactive test: copies the value from the actual
38 * template HTML into a text area to make the HTML source visible.
39 */
40 function jsinit() {
41 elem('template').value = elem('tc').innerHTML;
42 }
43
44
45 /**
46 * Interactive test.
47 *
48 * @param {boolean} reprocess If true, reprocesses the output of the
49 * previous invocation.
50 */
51 function jstest(reprocess) {
52 var jstext = elem('js').value;
53 var input = jsEval(jstext);
54 var t;
55 if (reprocess) {
56 t = elem('out');
57 } else {
58 elem('tc').innerHTML = elem('template').value;
59 t = jstGetTemplate('t');
60 elem('out').innerHTML = '';
61 elem('out').appendChild(t);
62 }
63 if (profiling) Profiler.reset();
64 jstProcess(new JsEvalContext(input), t);
65 if (profiling) Profiler.dump();
66 elem('html').value = elem('out').innerHTML;
67 }
68
69
70 /**
71 * Performance test: jst initial processing.
72 *
73 * @param {Object} data Test data to apply the template to.
74 */
75 function perf1(data) {
76 elem('out').innerHTML = '';
77 var t = jstGetTemplate('t1');
78 elem('out').appendChild(t);
79 if (profiling) Profiler.reset();
80 jstProcess(new JsEvalContext(data), t);
81 if (profiling) Profiler.dump();
82 }
83
84
85 /**
86 * Performance test: jst reprocessing or previous processing output.
87 *
88 * @param {Object} data Test data to apply the template to.
89 */
90 function perf1a(data) {
91 if (profiling) Profiler.reset();
92 jstProcess(new JsEvalContext(data), elemOrDie('out'));
93 if (profiling) Profiler.dump();
94 }
95
96
97 /**
98 * Performance test: jst initial processing, with display:none during
99 * processing.
100 *
101 * @param {Object} data Test data to apply the template to.
102 */
103 function perf1b(data) {
104 var o = elem('out');
105 o.innerHTML = '';
106 var t = jstGetTemplate('t1');
107 o.appendChild(t);
108 displayNone(o);
109 if (profiling) Profiler.reset();
110 jstProcess(new JsEvalContext(data), t);
111 if (profiling) Profiler.dump();
112 displayDefault(o);
113 }
114
115
116 /**
117 * Performance test: create output procedurally as string and assign
118 * to innerHTML.
119 *
120 * @param {Object} data Test data to apply the template to.
121 */
122 function perf2(data) {
123 var t = [];
124 t.push("<table><tr><th>item</th><th>label</th><th>address</th></tr>");
125 for (var i = 0; i < data.entries.length; ++i) {
126 var e = data.entries[i];
127 t.push("<tr><td>" + i + "</td><td>" + e.label + "</td><td>" +
128 e.address + "</td></tr>");
129 }
130 t.push("</table>");
131 elem("out").innerHTML = t.join('');
132 }
133
134
135 /**
136 * A test runner for a test. Does the timing. @constructor
137 *
138 * @param {number} times number of iterations the test is executed.
139 * @param {Function} test The test to execute.
140 * @param {Function} result Function will be called with the execution
141 * time as argument.
142 */
143 function TestRun(times, test, result) {
144 this.count_ = 0;
145 this.times_ = times;
146 this.test_ = test;
147 this.result_ = result;
148 this.start_ = (new Date).valueOf();
149 this.run_();
150 }
151
152
153 /**
154 * Executes the test run.
155 */
156 TestRun.prototype.run_ = function() {
157 if (this.count_ < this.times_) {
158 this.test_(this.count_);
159 this.count_ += 1;
160 objectSetTimeout(this, this.run_, 0);
161 } else {
162 this.stop_ = (new Date).valueOf();
163 this.result_(this.stop_ - this.start_);
164 }
165 };
166
167
168 /**
169 * Creates a testrun function for test count invocations of function
170 * f, whose runtime will be output to the element with is given in
171 * result.
172 *
173 * @param {Object} data The test data object.
174 * @param {Function} f
175 * @param {number} count
176 * @param {string} result
177 */
178 function createTestRun(count, test) {
179 var data = {
180 entries: []
181 };
182 for (var i = 0; i < count; ++i) {
183 data.entries.push({ label: "label" + i, address: "address" + i });
184 }
185 // This function is passed to the TimeoutSequence, and receives the
186 // TimeoutSequence as argument on invocation.
187 return function(s) {
188 new TestRun(1, function(i) {
189 window[test](data);
190 }, function(time) {
191 elem(test + '-' + count).innerHTML = time + 'ms';
192 s.run();
193 });
194 };
195 }
196
197 /**
198 * Runs all tests the given number of times. Invoked from the HTML page.
199 *
200 * @param {number} count
201 */
202 function jsperf(count) {
203 elemOrDie('log').innerHTML = '';
204 profiling = !!elemOrDie('profile').checked;
205 if (profiling && !JstProcessor.profiling_) {
206 JstProcessor.profiling_ = true;
207 Profiler.monitorAll(proto(JstProcessor), false);
208 }
209
210 var s = new TimeoutSequence(null, null, true);
211
212 s.add(createTestRun(count, "perf1"));
213 s.add(createTestRun(count, "perf1b"));
214 s.add(createTestRun(count, "perf1a"));
215 s.add(createTestRun(count, "perf2"));
216
217 s.run();
218 }
219
220 function run(test, count) {
221 var data = {
222 entries: []
223 };
224 for (var i = 0; i < count; ++i) {
225 data.entries.push({ label: "label" + i, address: "address" + i });
226 }
227 new TestRun(1, function() {
228 window[test](data);
229 }, function(time) {
230 elem(test + '-' + count).innerHTML = time + 'ms';
231 });
232 }
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