110 lines
3.5 KiB
Plaintext
110 lines
3.5 KiB
Plaintext
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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/browser_webkit_glue.h"
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#import "libcef/web_drag_utils_mac.h"
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#include "base/basictypes.h"
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#include "base/logging.h"
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#include "base/sys_string_conversions.h"
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#include "googleurl/src/gurl.h"
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#include "net/base/mime_util.h"
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#include "net/base/net_util.h"
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#import "third_party/mozilla/NSPasteboard+Utils.h"
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#include "webkit/plugins/npapi/plugin_list.h"
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namespace drag_util {
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BOOL PopulateURLAndTitleFromPasteBoard(GURL* url,
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string16* title,
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NSPasteboard* pboard,
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BOOL convert_filenames) {
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CHECK(url);
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// Bail out early if there's no URL data.
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if (![pboard containsURLData])
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return NO;
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// -getURLs:andTitles:convertingFilenames: will already validate URIs so we
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// don't need to again. The arrays returned are both of NSStrings.
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NSArray* url_array = nil;
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NSArray* title_array = nil;
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[pboard getURLs:&url_array andTitles:&title_array
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convertingFilenames:convert_filenames];
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DCHECK_EQ([url_array count], [title_array count]);
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// It's possible that no URLs were actually provided!
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if (![url_array count])
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return NO;
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NSString* url_string = [url_array objectAtIndex:0];
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if ([url_string length]) {
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// Check again just to make sure to not assign NULL into a std::string,
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// which throws an exception.
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const char* utf8_url = [url_string UTF8String];
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if (utf8_url) {
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*url = GURL(utf8_url);
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// Extra paranoia check.
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if (title && [title_array count])
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*title = base::SysNSStringToUTF16([title_array objectAtIndex:0]);
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}
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}
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return YES;
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}
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GURL GetFileURLFromDropData(id<NSDraggingInfo> info) {
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if ([[info draggingPasteboard] containsURLData]) {
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GURL url;
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PopulateURLAndTitleFromPasteBoard(&url,
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NULL,
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[info draggingPasteboard],
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YES);
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if (url.SchemeIs("file"))
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return url;
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}
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return GURL();
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}
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static BOOL IsSupportedFileURL(const GURL& url) {
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FilePath full_path;
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net::FileURLToFilePath(url, &full_path);
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std::string mime_type;
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net::GetMimeTypeFromFile(full_path, &mime_type);
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// This logic mirrors |BufferedResourceHandler::ShouldDownload()|.
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// TODO(asvitkine): Refactor this out to a common location instead of
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// duplicating code.
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if (net::IsSupportedMimeType(mime_type))
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return YES;
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// Check whether there is a plugin that supports the mime type. (e.g. PDF)
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bool allow_wildcard = false;
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std::vector<webkit::WebPluginInfo> plugins;
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webkit::npapi::PluginList::Singleton()->GetPluginInfoArray(
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GURL(), mime_type, allow_wildcard, NULL, &plugins, NULL);
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// If any associated plugins exist and are enabled don't allow the download.
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if (!plugins.empty()) {
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std::vector<webkit::WebPluginInfo>::const_iterator it = plugins.begin();
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for (; it != plugins.end(); ++it) {
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if (webkit_glue::IsPluginEnabled(*it))
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return YES;
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}
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}
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return NO;
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}
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BOOL IsUnsupportedDropData(id<NSDraggingInfo> info) {
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GURL url = GetFileURLFromDropData(info);
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if (!url.is_empty()) {
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// If dragging a file, only allow dropping supported file types (that the
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// web view can display).
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return !IsSupportedFileURL(url);
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}
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return NO;
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}
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} // namespace drag_util
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