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a9a7e8a5cf
* Rename buffer_source_type to buffer_source Signed-off-by: Bentaimia Haddadi <haddadi.taym@gmail.com> * Code format Signed-off-by: Bentaimia Haddadi <haddadi.taym@gmail.com> --------- Signed-off-by: Bentaimia Haddadi <haddadi.taym@gmail.com>
101 lines
3.4 KiB
Rust
101 lines
3.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use std::ptr;
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use dom_struct::dom_struct;
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use js::jsapi::JSObject;
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use js::rust::HandleObject;
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use js::typedarray::{ArrayBuffer, ArrayBufferU8};
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use crate::dom::bindings::buffer_source::create_buffer_source;
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use crate::dom::bindings::codegen::Bindings::BlobBinding::BlobMethods;
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use crate::dom::bindings::codegen::Bindings::FileReaderSyncBinding::FileReaderSyncMethods;
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use crate::dom::bindings::error::{Error, Fallible};
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use crate::dom::bindings::reflector::{reflect_dom_object_with_proto, Reflector};
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::bindings::str::DOMString;
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use crate::dom::blob::Blob;
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use crate::dom::filereader::FileReaderSharedFunctionality;
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use crate::dom::globalscope::GlobalScope;
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use crate::script_runtime::JSContext;
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#[dom_struct]
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pub struct FileReaderSync {
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reflector: Reflector,
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}
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impl FileReaderSync {
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pub fn new_inherited() -> FileReaderSync {
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FileReaderSync {
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reflector: Reflector::new(),
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}
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}
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fn new(global: &GlobalScope, proto: Option<HandleObject>) -> DomRoot<FileReaderSync> {
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reflect_dom_object_with_proto(Box::new(FileReaderSync::new_inherited()), global, proto)
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}
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#[allow(non_snake_case)]
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pub fn Constructor(
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global: &GlobalScope,
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proto: Option<HandleObject>,
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) -> Fallible<DomRoot<FileReaderSync>> {
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Ok(FileReaderSync::new(global, proto))
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}
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fn get_blob_bytes(blob: &Blob) -> Result<Vec<u8>, Error> {
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blob.get_bytes().map_err(|_| Error::NotReadable)
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}
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}
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impl FileReaderSyncMethods for FileReaderSync {
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/// <https://w3c.github.io/FileAPI/#readAsBinaryStringSyncSection>
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fn ReadAsBinaryString(&self, blob: &Blob) -> Fallible<DOMString> {
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// step 1
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let blob_contents = FileReaderSync::get_blob_bytes(blob)?;
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// step 2
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Ok(DOMString::from(String::from_utf8_lossy(&blob_contents)))
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}
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/// <https://w3c.github.io/FileAPI/#readAsTextSync>
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fn ReadAsText(&self, blob: &Blob, label: Option<DOMString>) -> Fallible<DOMString> {
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// step 1
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let blob_contents = FileReaderSync::get_blob_bytes(blob)?;
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// step 2
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let blob_label = label.map(String::from);
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let blob_type = String::from(blob.Type());
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let output =
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FileReaderSharedFunctionality::text_decode(&blob_contents, &blob_type, &blob_label);
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Ok(output)
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}
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/// <https://w3c.github.io/FileAPI/#readAsDataURLSync-section>
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fn ReadAsDataURL(&self, blob: &Blob) -> Fallible<DOMString> {
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// step 1
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let blob_contents = FileReaderSync::get_blob_bytes(blob)?;
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// step 2
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let output =
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FileReaderSharedFunctionality::dataurl_format(&blob_contents, blob.Type().to_string());
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Ok(output)
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}
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/// <https://w3c.github.io/FileAPI/#readAsArrayBufferSyncSection>
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fn ReadAsArrayBuffer(&self, cx: JSContext, blob: &Blob) -> Fallible<ArrayBuffer> {
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// step 1
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let blob_contents = FileReaderSync::get_blob_bytes(blob)?;
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// step 2
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rooted!(in(*cx) let mut array_buffer = ptr::null_mut::<JSObject>());
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create_buffer_source::<ArrayBufferU8>(cx, &blob_contents, array_buffer.handle_mut())
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.map_err(|_| Error::JSFailed)
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}
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}
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