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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/test/scoped_feature_list.h"
#include "build/build_config.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "third_party/blink/public/common/features_generated.h"
#include "ui/base/clipboard/clipboard_buffer.h"
#include "ui/base/clipboard/file_info.h"
#include "ui/base/clipboard/scoped_clipboard_writer.h"
#include "ui/base/clipboard/test/test_clipboard.h"
namespace content {
// End-to-end tests for File System Access via clipboard, or more specifically,
// DataTransferItem::getAsFileSystemHandle().
class FileSystemAccessClipboardBrowserTest : public ContentBrowserTest {
public:
FileSystemAccessClipboardBrowserTest() {
scoped_features_.InitAndEnableFeature(
blink::features::kFileSystemAccessLocal);
}
void SetUp() override {
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
ASSERT_TRUE(embedded_test_server()->Start());
ui::TestClipboard::CreateForCurrentThread();
ContentBrowserTest::SetUp();
}
void TearDown() override {
ContentBrowserTest::TearDown();
ASSERT_TRUE(temp_dir_.Delete());
}
base::FilePath CreateTestFileInDirectory(const base::FilePath& directory_path,
const std::string& contents) {
base::ScopedAllowBlockingForTesting allow_blocking;
base::FilePath result;
EXPECT_TRUE(base::CreateTemporaryFileInDir(directory_path, &result));
EXPECT_TRUE(base::WriteFile(result, contents));
return result;
}
base::FilePath CreateTestDir() {
base::ScopedAllowBlockingForTesting allow_blocking;
base::FilePath result;
EXPECT_TRUE(base::CreateTemporaryDirInDir(
temp_dir_.GetPath(), FILE_PATH_LITERAL("test"), &result));
return result;
}
protected:
base::ScopedTempDir temp_dir_;
base::test::ScopedFeatureList scoped_features_;
};
IN_PROC_BROWSER_TEST_F(FileSystemAccessClipboardBrowserTest, File) {
ASSERT_TRUE(
NavigateToURL(shell(), embedded_test_server()->GetURL("/title1.html")));
// Create a promise that will resolve on paste with the text from the file on
// the clipboard. The text is retrieved using the FileSystemAccess
// getAsFileSystemHandle() function. The promise will reject if zero/multiple
// items are on the clipboard or if the item is not a file.
ASSERT_TRUE(
ExecJs(shell(),
"var p = new Promise((resolve, reject) => {"
" window.document.onpaste = async (event) => {"
" if (event.clipboardData.files.length !== 1) {"
" reject('There were ' + event.clipboardData.files.length +"
" ' clipboard files. Expected 1.');"
" }"
" if (event.clipboardData.items.length !== 1) {"
" reject('There were ' + event.clipboardData.items.length +"
" ' clipboard items. Expected 1.');"
" }"
" if (event.clipboardData.items[0].kind != 'file') {"
" reject('The clipboard item was of kind: ' +"
" event.clipboardData.items[0].kind + '. Expected ' +"
" 'file.');"
" }"
" const fileItem = event.clipboardData.items[0];"
" const fileHandle = await fileItem.getAsFileSystemHandle();"
" if (fileHandle.kind !== 'file') {"
" reject('The clipboard item was a directory, expected ' +"
" ' it to be a file.');"
" }"
" const file = await fileHandle.getFile();"
" const text = await file.text();"
" resolve(text);"
" };"
"});"));
// Create a test file with contents `test_contents` to put on clipboard.
std::string test_contents = "Deleted code is debugged code.";
base::FilePath test_file_path =
CreateTestFileInDirectory(temp_dir_.GetPath(), test_contents);
{
ui::ScopedClipboardWriter writer(ui::ClipboardBuffer::kCopyPaste);
writer.WriteFilenames(ui::FileInfosToURIList(
{ui::FileInfo(test_file_path, base::FilePath())}));
}
// Send paste event and wait for JS promise to resolve with `test_contents`.
shell()->web_contents()->Paste();
EXPECT_EQ(test_contents, EvalJs(shell(), "p"));
}
IN_PROC_BROWSER_TEST_F(FileSystemAccessClipboardBrowserTest, Directory) {
ASSERT_TRUE(
NavigateToURL(shell(), embedded_test_server()->GetURL("/title1.html")));
// Create a promise that will resolve on paste with the name of the child
// directory of the clipboard directory. The promise rejects if there are
// zero/multiple items on the clipboard or if the item is not a directory with
// a single child.
ASSERT_TRUE(
ExecJs(shell(),
"var p = new Promise((resolve, reject) => {"
" window.document.onpaste = async (event) => {"
" if (event.clipboardData.items.length !== 1) {"
" reject('There were ' + event.clipboardData.items.length +"
" ' clipboard items. Expected 1.');"
" }"
" if (event.clipboardData.items[0].kind != 'file') {"
" reject('The drag item was of kind: ' +"
" event.clipboardData.items[0].kind + '. Expected ' +"
" ' file.');"
" }"
" const fileItem = event.clipboardData.items[0];"
" directoryHandle = await fileItem.getAsFileSystemHandle();"
" if (directoryHandle.kind !== 'directory') {"
" reject('The dragged item was a file, expected it to be ' +"
" 'a directory.');"
" }"
" let directoryContents = [];"
" for await (let fileName of directoryHandle.keys()) {"
" directoryContents.push(fileName);"
" };"
" if (directoryContents.length !== 1) {"
" reject('There were ', directoryContents.length,"
" ' files in the clipboard directory. Expected 1.');"
" }"
" resolve(directoryContents.pop());"
" };"
"});"));
// Create a directory with a file inside and place on the clipboard.
const base::FilePath test_dir_path = CreateTestDir();
std::string contents = "Irrelevant contents.";
const base::FilePath file_inside_dir =
CreateTestFileInDirectory(test_dir_path, contents);
{
ui::ScopedClipboardWriter writer(ui::ClipboardBuffer::kCopyPaste);
writer.WriteFilenames(ui::FileInfosToURIList(
{ui::FileInfo(test_dir_path, base::FilePath())}));
}
// Send paste event and wait for promise to resolve and expect the directory
// to have child with name matching the base name of `file_inside_dir`.
shell()->web_contents()->Paste();
EXPECT_EQ(file_inside_dir.BaseName().AsUTF8Unsafe(), EvalJs(shell(), "p"));
}
} // namespace content
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