Auto merge of #11225 - izgzhen:patch-input-element-file, r=Manishearth

Implement file related functionalities in htmlinputelement and related

- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy --faster` does not report any errors
- [x] These changes is related to #11131
- [x] These changes do not require tests because it is a partial implementation

1. Improve the `filemanager_thread` by adding type string and create `SelectedFile`
2. Fill several gaps in `htmlinputelement` implementation related to file type
3. Improve the `File` interface to accommodate the above changes
4. Integrate changes introduced by PR #11189

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1 files changed, 15 insertions, 1 deletions

diff --git a/components/script/dom/file.rs b/components/script/dom/file.rs
index 9667182671a..4ece71a5ce3 100644
--- a/components/script/dom/file.rs
+++ b/components/script/dom/file.rs
@@ -10,6 +10,8 @@ use dom::bindings::global::GlobalRef;
 use dom::bindings::js::Root;
 use dom::bindings::reflector::reflect_dom_object;
 use dom::blob::{Blob, DataSlice, blob_parts_to_bytes};
+use dom::window::Window;
+use net_traits::filemanager_thread::SelectedFile;
 use std::sync::Arc;
 use time;
 use util::str::DOMString;
@@ -45,6 +47,19 @@ impl File {
                            FileBinding::Wrap)
     }
 
+    // Construct from selected file message from file manager thread
+    pub fn new_from_selected(window: &Window, selected: SelectedFile) -> Root<File> {
+        let name = DOMString::from(selected.filename.to_str().expect("File name encoding error"));
+
+        // FIXME: fix this after PR #11221 is landed
+        let id = selected.id;
+        let slice = DataSlice::empty();
+
+        let global = GlobalRef::Window(window);
+
+        File::new(global, slice, name, Some(selected.modified as i64), "")
+    }
+
     // https://w3c.github.io/FileAPI/#file-constructor
     pub fn Constructor(global: GlobalRef,
                        fileBits: Vec<BlobOrString>,
@@ -64,7 +79,6 @@ impl File {
     pub fn name(&self) -> &DOMString {
         &self.name
     }
-
 }
 
 impl FileMethods for File {