Andreas Hocevar
119 lines
2.9 KiB
HTML
119 lines
2.9 KiB
HTML
<!DOCTYPE html>
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<html>
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<!--
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Copyright 2010 The Closure Library Authors. All Rights Reserved.
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Use of this source code is governed by the Apache License, Version 2.0.
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See the COPYING file for details.
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-->
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<head>
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<title>goog.events.KeyHandler</title>
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<link rel="stylesheet" href="css/demo.css">
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<style>
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.input-group {
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border: 1px solid black;
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clear: both;
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float: left;
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margin-bottom: 1em;
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padding: 1em;
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}
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#console {
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position: fixed;
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right: 0;
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top: 0;
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left: 400px;
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bottom: 0;
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overflow: auto;
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}
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#no-tab {
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background: pink;
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}
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</style>
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<script src="../base.js"></script>
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<script>
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goog.require('goog.debug.DivConsole');
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goog.require('goog.events');
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goog.require('goog.events.KeyCodes');
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goog.require('goog.events.KeyHandler');
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goog.require('goog.log');
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</script>
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</head>
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<body>
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<h1>goog.events.KeyHandler</h1>
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<p><button onclick="divConsole.clear()">Clear Console</button></p>
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<div class="input-group">
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<label>Plain input <input></label><br>
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<label>Number input <input class="number-input"></label><br>
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<label>Text area <textarea></textarea></label><br>
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<div tabIndex="0">Focusable div</div>
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</div>
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<div id="no-tab" class="input-group">
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No Tab inside this<br><br>
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<label>Plain input <input></label><br>
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<label>Number input <input class="number-input"></label><br>
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<label>Text area <textarea></textarea></label><br>
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<div tabIndex="0">Focusable div</div>
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</div>
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<div id="console"></div>
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<script>
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var divConsole = new goog.debug.DivConsole(document.getElementById('console'));
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divConsole.setCapturing(true);
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var logger = new goog.log.getLogger('demo');
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var docKh = new goog.events.KeyHandler(document);
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goog.events.listen(docKh, 'key', function(e) {
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goog.log.info(logger, 'keyCode: ' + e.keyCode +
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', charCode: ' + e.charCode +
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', repeat: ' + e.repeat +
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', target: ' + e.target +
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', native event: ' + e.getBrowserEvent().type);
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});
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var noTabKh = new goog.events.KeyHandler(document.getElementById('no-tab'));
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goog.events.listen(noTabKh, goog.events.KeyHandler.EventType.KEY, function(e) {
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if (e.keyCode == goog.events.KeyCodes.TAB) {
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e.preventDefault();
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}
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});
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function numberInputKeyHandler(e) {
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goog.log.info(logger, 'isTextModifyingKeyEvent: ' +
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goog.events.KeyCodes.isTextModifyingKeyEvent(e));
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if (e.target.className != 'number-input' ||
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e.ctrlKey ||
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!e.shiftKey && e.keyCode >= goog.events.KeyCodes.ZERO &&
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e.keyCode <= goog.events.KeyCodes.NINE ||
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!goog.events.KeyCodes.isTextModifyingKeyEvent(e)) {
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return;
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}
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switch (e.keyCode) {
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// Allow these
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case goog.events.KeyCodes.DELETE:
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case goog.events.KeyCodes.BACKSPACE:
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case goog.events.KeyCodes.TAB:
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return;
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}
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// prevent default for the rest
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e.preventDefault();
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}
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goog.events.listen(docKh, goog.events.KeyHandler.EventType.KEY,
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numberInputKeyHandler);
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</script>
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</body>
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</html>
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