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Side by Side Diff: sdk/lib/html/html_common/conversions.dart

Issue 2974433002: Remaining private libs (Closed)
Patch Set: It's html_common Created 3 years, 5 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 // Conversions for IDBKey. 5 // Conversions for IDBKey.
6 // 6 //
7 // Per http://www.w3.org/TR/IndexedDB/#key-construct 7 // Per http://www.w3.org/TR/IndexedDB/#key-construct
8 // 8 //
9 // "A value is said to be a valid key if it is one of the following types: Array 9 // "A value is said to be a valid key if it is one of the following types: Array
10 // JavaScript objects [ECMA-262], DOMString [WEBIDL], Date [ECMA-262] or float 10 // JavaScript objects [ECMA-262], DOMString [WEBIDL], Date [ECMA-262] or float
11 // [WEBIDL]. However Arrays are only valid keys if every item in the array is 11 // [WEBIDL]. However Arrays are only valid keys if every item in the array is
12 // defined and is a valid key (i.e. sparse arrays can not be valid keys) and if 12 // defined and is a valid key (i.e. sparse arrays can not be valid keys) and if
13 // the Array doesn't directly or indirectly contain itself. Any non-numeric 13 // the Array doesn't directly or indirectly contain itself. Any non-numeric
14 // properties are ignored, and thus does not affect whether the Array is a valid 14 // properties are ignored, and thus does not affect whether the Array is a valid
15 // key. Additionally, if the value is of type float, it is only a valid key if 15 // key. Additionally, if the value is of type float, it is only a valid key if
16 // it is not NaN, and if the value is of type Date it is only a valid key if its 16 // it is not NaN, and if the value is of type Date it is only a valid key if its
17 // [[PrimitiveValue]] internal property, as defined by [ECMA-262], is not NaN." 17 // [[PrimitiveValue]] internal property, as defined by [ECMA-262], is not NaN."
18 18
19 // What is required is to ensure that an Lists in the key are actually 19 // What is required is to ensure that an Lists in the key are actually
20 // JavaScript arrays, and any Dates are JavaScript Dates. 20 // JavaScript arrays, and any Dates are JavaScript Dates.
21 21
22 // Conversions for Window. These check if the window is the local 22 // Conversions for Window. These check if the window is the local
23 // window, and if it's not, wraps or unwraps it with a secure wrapper. 23 // window, and if it's not, wraps or unwraps it with a secure wrapper.
24 // We need to test for EventTarget here as well as it's a base type. 24 // We need to test for EventTarget here as well as it's a base type.
25 // We omit an unwrapper for Window as no methods take a non-local 25 // We omit an unwrapper for Window as no methods take a non-local
26 // window as a parameter. 26 // window as a parameter.
27 27
28 part of html_common; 28 part of "dart:html_common";
29 29
30 /// Converts a Dart value into a JavaScript SerializedScriptValue. 30 /// Converts a Dart value into a JavaScript SerializedScriptValue.
31 convertDartToNative_SerializedScriptValue(value) { 31 convertDartToNative_SerializedScriptValue(value) {
32 return convertDartToNative_PrepareForStructuredClone(value); 32 return convertDartToNative_PrepareForStructuredClone(value);
33 } 33 }
34 34
35 /// Since the source object may be viewed via a JavaScript event listener the 35 /// Since the source object may be viewed via a JavaScript event listener the
36 /// original may not be modified. 36 /// original may not be modified.
37 convertNativeToDart_SerializedScriptValue(object) { 37 convertNativeToDart_SerializedScriptValue(object) {
38 return convertNativeToDart_AcceptStructuredClone(object, mustCopy: true); 38 return convertNativeToDart_AcceptStructuredClone(object, mustCopy: true);
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349 349
350 // We can get rid of this conversion if _TypedImageData implements the fields 350 // We can get rid of this conversion if _TypedImageData implements the fields
351 // with native names. 351 // with native names.
352 convertDartToNative_ImageData(ImageData imageData) { 352 convertDartToNative_ImageData(ImageData imageData) {
353 if (imageData is _TypedImageData) { 353 if (imageData is _TypedImageData) {
354 return JS('', '{data: #, height: #, width: #}', imageData.data, 354 return JS('', '{data: #, height: #, width: #}', imageData.data,
355 imageData.height, imageData.width); 355 imageData.height, imageData.width);
356 } 356 }
357 return imageData; 357 return imageData;
358 } 358 }
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