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LibWeb: Port HTMLCanvasElement interface from DeprecatedString to String

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Shannon Booth 2023-09-03 15:58:55 +12:00 • committed by Tim Flynn
parent 7206f1777a
commit 76af9d434c
4 changed files with 13 additions and 13 deletions
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14
Userland/Libraries/LibWeb/HTML/HTMLCanvasElement.cpp
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@ -153,7 +153,7 @@ JS::ThrowCompletionOr<HTMLCanvasElement::HasOrCreatedContext> HTMLCanvasElement:
} }
// https://html.spec.whatwg.org/multipage/canvas.html#dom-canvas-getcontext // https://html.spec.whatwg.org/multipage/canvas.html#dom-canvas-getcontext
JS::ThrowCompletionOr<HTMLCanvasElement::RenderingContext> HTMLCanvasElement::get_context(DeprecatedString const& type, JS::Value options) JS::ThrowCompletionOr<HTMLCanvasElement::RenderingContext> HTMLCanvasElement::get_context(String const& type, JS::Value options)
{ {
// 1. If options is not an object, then set options to null. // 1. If options is not an object, then set options to null.
if (!options.is_object()) if (!options.is_object())
@ -246,14 +246,14 @@ static ErrorOr<SerializeBitmapResult> serialize_bitmap(Gfx::Bitmap const& bitmap
} }
// https://html.spec.whatwg.org/multipage/canvas.html#dom-canvas-todataurl // https://html.spec.whatwg.org/multipage/canvas.html#dom-canvas-todataurl
DeprecatedString HTMLCanvasElement::to_data_url(DeprecatedString const& type, Optional<double> quality) const String HTMLCanvasElement::to_data_url(StringView type, Optional<double> quality) const
{ {
// FIXME: 1. If this canvas element's bitmap's origin-clean flag is set to false, then throw a "SecurityError" DOMException. // FIXME: 1. If this canvas element's bitmap's origin-clean flag is set to false, then throw a "SecurityError" DOMException.
// 2. If this canvas element's bitmap has no pixels (i.e. either its horizontal dimension or its vertical dimension is zero) // 2. If this canvas element's bitmap has no pixels (i.e. either its horizontal dimension or its vertical dimension is zero)
// then return the string "data:,". (This is the shortest data: URL; it represents the empty string in a text/plain resource.) // then return the string "data:,". (This is the shortest data: URL; it represents the empty string in a text/plain resource.)
if (!m_bitmap) if (!m_bitmap)
return "data:,"; return "data:,"_string;
// 3. Let file be a serialization of this canvas element's bitmap as a file, passing type and quality if given. // 3. Let file be a serialization of this canvas element's bitmap as a file, passing type and quality if given.
auto file = serialize_bitmap(*m_bitmap, type, move(quality)); auto file = serialize_bitmap(*m_bitmap, type, move(quality));
@ -261,19 +261,19 @@ DeprecatedString HTMLCanvasElement::to_data_url(DeprecatedString const& type, Op
// 4. If file is null then return "data:,". // 4. If file is null then return "data:,".
if (file.is_error()) { if (file.is_error()) {
dbgln("HTMLCanvasElement: Failed to encode canvas bitmap to {}: {}", type, file.error()); dbgln("HTMLCanvasElement: Failed to encode canvas bitmap to {}: {}", type, file.error());
return "data:,"; return "data:,"_string;
} }
// 5. Return a data: URL representing file. [RFC2397] // 5. Return a data: URL representing file. [RFC2397]
auto base64_encoded_or_error = encode_base64(file.value().buffer); auto base64_encoded_or_error = encode_base64(file.value().buffer);
if (base64_encoded_or_error.is_error()) { if (base64_encoded_or_error.is_error()) {
return "data:,"; return "data:,"_string;
} }
return AK::URL::create_with_data(file.value().mime_type, base64_encoded_or_error.release_value(), true).to_deprecated_string(); return MUST(AK::URL::create_with_data(file.value().mime_type, base64_encoded_or_error.release_value(), true).to_string());
} }
// https://html.spec.whatwg.org/multipage/canvas.html#dom-canvas-toblob // https://html.spec.whatwg.org/multipage/canvas.html#dom-canvas-toblob
WebIDL::ExceptionOr<void> HTMLCanvasElement::to_blob(JS::NonnullGCPtr<WebIDL::CallbackType> callback, DeprecatedString const& type, Optional<double> quality) WebIDL::ExceptionOr<void> HTMLCanvasElement::to_blob(JS::NonnullGCPtr<WebIDL::CallbackType> callback, StringView type, Optional<double> quality)
{ {
// FIXME: 1. If this canvas element's bitmap's origin-clean flag is set to false, then throw a "SecurityError" DOMException. // FIXME: 1. If this canvas element's bitmap's origin-clean flag is set to false, then throw a "SecurityError" DOMException.

6
Userland/Libraries/LibWeb/HTML/HTMLCanvasElement.h
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@ -25,7 +25,7 @@ public:
Gfx::Bitmap* bitmap() { return m_bitmap; } Gfx::Bitmap* bitmap() { return m_bitmap; }
bool create_bitmap(size_t minimum_width = 0, size_t minimum_height = 0); bool create_bitmap(size_t minimum_width = 0, size_t minimum_height = 0);
JS::ThrowCompletionOr<RenderingContext> get_context(DeprecatedString const& type, JS::Value options); JS::ThrowCompletionOr<RenderingContext> get_context(String const& type, JS::Value options);
unsigned width() const; unsigned width() const;
unsigned height() const; unsigned height() const;
@ -33,8 +33,8 @@ public:
WebIDL::ExceptionOr<void> set_width(unsigned); WebIDL::ExceptionOr<void> set_width(unsigned);
WebIDL::ExceptionOr<void> set_height(unsigned); WebIDL::ExceptionOr<void> set_height(unsigned);
DeprecatedString to_data_url(DeprecatedString const& type, Optional<double> quality) const; String to_data_url(StringView type, Optional<double> quality) const;
WebIDL::ExceptionOr<void> to_blob(JS::NonnullGCPtr<WebIDL::CallbackType> callback, DeprecatedString const& type, Optional<double> quality); WebIDL::ExceptionOr<void> to_blob(JS::NonnullGCPtr<WebIDL::CallbackType> callback, StringView type, Optional<double> quality);
void present(); void present();

2
Userland/Libraries/LibWeb/HTML/HTMLCanvasElement.idl
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@ -5,7 +5,7 @@
typedef (CanvasRenderingContext2D or WebGLRenderingContext) RenderingContext; typedef (CanvasRenderingContext2D or WebGLRenderingContext) RenderingContext;
// https://html.spec.whatwg.org/multipage/semantics.html#htmlcanvaselement // https://html.spec.whatwg.org/multipage/semantics.html#htmlcanvaselement
[Exposed=Window, UseDeprecatedAKString] [Exposed=Window]
interface HTMLCanvasElement : HTMLElement { interface HTMLCanvasElement : HTMLElement {
[HTMLConstructor] constructor(); [HTMLConstructor] constructor();

4
Userland/Libraries/LibWeb/WebDriver/Screenshot.cpp
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@ -36,11 +36,11 @@ static Response encode_canvas_element(HTML::HTMLCanvasElement const& canvas)
auto data_url = canvas.to_data_url("image/png"sv, {}); auto data_url = canvas.to_data_url("image/png"sv, {});
// 5. Let index be the index of "," in data url. // 5. Let index be the index of "," in data url.
auto index = data_url.find(','); auto index = data_url.find_byte_offset(',');
VERIFY(index.has_value()); VERIFY(index.has_value());
// 6. Let encoded string be a substring of data url using (index + 1) as the start argument. // 6. Let encoded string be a substring of data url using (index + 1) as the start argument.
auto encoded_string = data_url.substring(*index + 1); auto encoded_string = MUST(data_url.substring_from_byte_offset(*index + 1));
// 7. Return success with data encoded string. // 7. Return success with data encoded string.
return JsonValue { move(encoded_string) }; return JsonValue { move(encoded_string) };