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<!DOCTYPE html>
<html>
<!--
Copyright 2009 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.events.FileDropHandler</title>
<script src="../base.js"></script>
<script>
goog.require('goog.events.FileDropHandler');
goog.require('goog.events.FileDropHandler.EventType');
goog.require('goog.events');
goog.require('goog.events.BrowserEvent');
goog.require('goog.events.EventTarget');
goog.require('goog.events.EventType');
goog.require('goog.testing.jsunit');
</script>
</head>
<body>
<script>
var textarea;
var doc;
var handler;
var dnd;
var files;
function setUp() {
textarea = new goog.events.EventTarget();
doc = new goog.events.EventTarget();
textarea.ownerDocument = doc;
handler = new goog.events.FileDropHandler(textarea);
dnd = false;
files = null;
goog.events.listen(handler, goog.events.FileDropHandler.EventType.DROP,
function(e) {
dnd = true;
files =
e.getBrowserEvent().dataTransfer.files;
});
}
function tearDown() {
textarea.dispose();
doc.dispose();
handler.dispose();
}
function testOneFile() {
var preventDefault = false;
var expectedfiles = [{ fileName: 'file1.jpg' }];
var dt = { types: ['Files'], files : expectedfiles };
// Assert that default actions are prevented on dragenter.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGENTER,
dataTransfer : dt
}));
assertTrue(preventDefault);
preventDefault = false;
// Assert that default actions are prevented on dragover.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGOVER,
dataTransfer : dt
}));
assertTrue(preventDefault);
preventDefault = false;
// Assert that the drop effect is set to 'copy'.
assertEquals('copy', dt.dropEffect);
// Assert that default actions are prevented on drop.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DROP,
dataTransfer : dt
}));
assertTrue(preventDefault);
// Assert that DROP has been fired.
assertTrue(dnd);
assertEquals(1, files.length);
assertEquals(expectedfiles[0].fileName, files[0].fileName);
}
function testMultipleFiles() {
var preventDefault = false;
var expectedfiles = [{ fileName: 'file1.jpg' }, { fileName: 'file2.jpg' }];
var dt = { types: ['Files', 'text'], files : expectedfiles };
// Assert that default actions are prevented on dragenter.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGENTER,
dataTransfer : dt
}));
assertTrue(preventDefault);
preventDefault = false;
// Assert that default actions are prevented on dragover.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGOVER,
dataTransfer : dt
}));
assertTrue(preventDefault);
preventDefault = false;
// Assert that the drop effect is set to 'copy'.
assertEquals('copy', dt.dropEffect);
// Assert that default actions are prevented on drop.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DROP,
dataTransfer : dt
}));
assertTrue(preventDefault);
// Assert that DROP has been fired.
assertTrue(dnd);
assertEquals(2, files.length);
assertEquals(expectedfiles[0].fileName, files[0].fileName);
assertEquals(expectedfiles[1].fileName, files[1].fileName);
}
function testNoFiles() {
var preventDefault = false;
var dt = { types: ['text'] };
// Assert that default actions are not prevented on dragenter.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGENTER,
dataTransfer : dt
}));
assertFalse(preventDefault);
preventDefault = false;
// Assert that default actions are not prevented on dragover.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGOVER,
dataTransfer : dt
}));
assertFalse(preventDefault);
preventDefault = false;
// Assert that default actions are not prevented on drop.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DROP,
dataTransfer : dt
}));
assertFalse(preventDefault);
// Assert that DROP has not been fired.
assertFalse(dnd);
assertNull(files);
}
function testDragEnter() {
var preventDefault = false;
// Assert that default actions are prevented on dragenter.
// In Chrome the dragenter event has an empty file list and the types is
// set to 'Files'.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGENTER,
dataTransfer : { types: ['Files'], files : [] }
}));
assertTrue(preventDefault);
preventDefault = false;
// Assert that default actions are prevented on dragenter.
// In Safari 4 the dragenter event has an empty file list and the types is
// set to 'public.file-url'.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGENTER,
dataTransfer : { types: ['public.file-url'], files : [] }
}));
assertTrue(preventDefault);
preventDefault = false;
// Assert that default actions are not prevented on dragenter
// when the drag contains no files.
textarea.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGENTER,
dataTransfer : { types: ['text'], files : [] }
}));
assertFalse(preventDefault);
}
function testPreventDropOutside() {
var preventDefault = false;
var dt = { types: ['Files'], files : [{ fileName: 'file1.jpg' }] };
// Assert that default actions are not prevented on dragenter on the
// document outside the text area.
doc.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGENTER,
dataTransfer : dt
}));
assertFalse(preventDefault);
preventDefault = false;
// Assert that default actions are not prevented on dragover on the
// document outside the text area.
doc.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGOVER,
dataTransfer : dt
}));
assertFalse(preventDefault);
preventDefault = false;
handler.dispose();
// Create a new FileDropHandler that prevents drops outside the text area.
handler = new goog.events.FileDropHandler(textarea, true);
// Assert that default actions are now prevented on dragenter on the
// document outside the text area.
doc.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGENTER,
dataTransfer : dt
}));
assertTrue(preventDefault);
preventDefault = false;
// Assert that default actions are now prevented on dragover on the
// document outside the text area.
doc.dispatchEvent(new goog.events.BrowserEvent({
preventDefault : function() { preventDefault = true; },
type : goog.events.EventType.DRAGOVER,
dataTransfer : dt
}));
assertTrue(preventDefault);
preventDefault = false;
// Assert also that the drop effect is set to 'none'.
assertEquals('none', dt.dropEffect);
}
</script>
</body>
</html>
|
