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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/omnibox/clipboard_utils.h"
#include <string>
#include "base/strings/utf_string_conversions.h"
#include "components/omnibox/browser/omnibox_text_util.h"
#include "components/omnibox/browser/omnibox_view.h"
#include "ui/base/clipboard/clipboard.h"
#include "ui/base/data_transfer_policy/data_transfer_endpoint.h"
bool CanGetClipboardText() {
// Note that this is intended for pre-flighting and so therefore, in this
// context, it's unsafe to actually try to access the clipboard (especially on
// macOS with Pasteboard Privacy). Therefore, make reasonable assumptions
// below (marked as such) to avoid inspecting actual clipboard data.
// Try text format.
ui::Clipboard* clipboard = ui::Clipboard::GetForCurrentThread();
ui::DataTransferEndpoint data_dst = ui::DataTransferEndpoint(
ui::EndpointType::kDefault, {.notify_if_restricted = false});
if (clipboard->IsFormatAvailable(ui::ClipboardFormatType::PlainTextType(),
ui::ClipboardBuffer::kCopyPaste,
&data_dst)) {
// Reasonable assumption: If there is text data on the clipboard, it's of
// non-zero length.
return true;
}
// Try bookmark format.
if (clipboard->IsFormatAvailable(ui::ClipboardFormatType::UrlType(),
ui::ClipboardBuffer::kCopyPaste,
&data_dst)) {
// Reasonable assumption: The URL is valid.
return true;
}
return false;
}
std::u16string GetClipboardText(bool notify_if_restricted) {
// Try text format.
ui::Clipboard* clipboard = ui::Clipboard::GetForCurrentThread();
ui::DataTransferEndpoint data_dst =
ui::DataTransferEndpoint(ui::EndpointType::kDefault,
{.notify_if_restricted = notify_if_restricted});
if (clipboard->IsFormatAvailable(ui::ClipboardFormatType::PlainTextType(),
ui::ClipboardBuffer::kCopyPaste,
&data_dst)) {
std::u16string text;
clipboard->ReadText(ui::ClipboardBuffer::kCopyPaste, &data_dst, &text);
text = text.substr(0, kMaxClipboardTextLength);
return omnibox::SanitizeTextForPaste(text);
}
// Try bookmark format.
//
// It is tempting to try bookmark format first, but the URL we get out of a
// bookmark has been cannonicalized via GURL. This means if a user copies
// and pastes from the URL bar to itself, the text will get fixed up and
// cannonicalized, which is not what the user expects. By pasting in this
// order, we are sure to paste what the user copied.
if (clipboard->IsFormatAvailable(ui::ClipboardFormatType::UrlType(),
ui::ClipboardBuffer::kCopyPaste,
&data_dst)) {
std::string url_str;
clipboard->ReadBookmark(&data_dst, nullptr, &url_str);
// pass resulting url string through GURL to normalize
GURL url(url_str);
if (url.is_valid()) {
return omnibox::StripJavascriptSchemas(base::UTF8ToUTF16(url.spec()));
}
}
return std::u16string();
}
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