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<!DOCTYPE html>
<html>
<!--
Copyright 2008 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<!--
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.ui.ScrollFloater</title>
<script src="../base.js"></script>
<script>
goog.require('goog.dom');
goog.require('goog.style');
goog.require('goog.testing.jsunit');
goog.require('goog.ui.ScrollFloater');
goog.require('goog.ui.ScrollFloater.EventType');
</script>
</head>
<body>
<script>
function testScrollFloater() {
var scrollFloater = new goog.ui.ScrollFloater();
var floater = goog.dom.getElement('floater');
scrollFloater.decorate(floater);
assertTrue('Default state is enabled', scrollFloater.isScrollingEnabled());
assertFalse('On unscrolled page should not be floating',
scrollFloater.isFloating());
scrollFloater.setScrollingEnabled(false);
assertFalse('We can disable the floater',
scrollFloater.isScrollingEnabled());
scrollFloater.dispose();
}
function testScrollFloaterEvents() {
var scrollFloater = new goog.ui.ScrollFloater();
var floater = goog.dom.getElement('floater');
scrollFloater.decorate(floater);
var floatWasCalled = false;
var callRecorder = function() { floatWasCalled = true; };
goog.events.listen(
scrollFloater, goog.ui.ScrollFloater.EventType.FLOAT, callRecorder);
scrollFloater.startFloating_();
assertTrue('FLOAT event was called', floatWasCalled);
assertTrue('Should be floating', scrollFloater.isFloating());
var dockWasCalled = false;
callRecorder = function() { dockWasCalled = true; };
goog.events.listen(
scrollFloater, goog.ui.ScrollFloater.EventType.DOCK, callRecorder);
scrollFloater.stopFloating_();
assertTrue('DOCK event was called', dockWasCalled);
assertFalse('Should not be floating', scrollFloater.isFloating());
scrollFloater.dispose();
}
function testScrollFloaterEventCancellation() {
var scrollFloater = new goog.ui.ScrollFloater();
var floater = goog.dom.getElement('floater');
scrollFloater.decorate(floater);
// Event handler that returns false to cancel the event.
var eventCanceller = function() { return false; };
// Have eventCanceller handle the FLOAT event and verify cancellation.
goog.events.listen(
scrollFloater, goog.ui.ScrollFloater.EventType.FLOAT, eventCanceller);
scrollFloater.startFloating_();
assertFalse('Should not be floating', scrollFloater.isFloating());
// Detach eventCanceller and enable floating.
goog.events.unlisten(
scrollFloater, goog.ui.ScrollFloater.EventType.FLOAT, eventCanceller);
scrollFloater.startFloating_();
// Have eventCanceller handle the DOCK event and verify cancellation.
goog.events.listen(
scrollFloater, goog.ui.ScrollFloater.EventType.DOCK, eventCanceller);
scrollFloater.stopFloating_();
assertTrue('Should still be floating', scrollFloater.isFloating());
scrollFloater.dispose();
}
function testScrollFloaterUpdateStyleOnFloatEvent() {
var scrollFloater = new goog.ui.ScrollFloater();
var floater = goog.dom.getElement('floater');
scrollFloater.decorate(floater);
// Event handler that sets the font size of the scrollfloater to 20px.
var updateStyle = function(e) {
goog.style.setStyle(e.target.getElement(), 'font-size', '20px');
};
// Set the current font size to 10px.
goog.style.setStyle(scrollFloater.getElement(), 'font-size', '10px');
goog.events.listen(
scrollFloater, goog.ui.ScrollFloater.EventType.FLOAT, updateStyle);
scrollFloater.startFloating_();
// Ensure event handler got called and updated the font size.
assertEquals('Font size should be 20px',
'20px', goog.style.getStyle(scrollFloater.getElement(), 'font-size'));
scrollFloater.dispose();
}
</script>
<div id="floater">
Content to be scroll-floated.
</div>
</body>
</html>
|
