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Add OnProtocolExecution callback to CefRequestHandler (issue #582).

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git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@711 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
This commit is contained in:
Marshall Greenblatt
2012-06-25 21:21:27 +00:00
parent 89c70a8b11
commit d13cc9de1c
18 changed files with 253 additions and 0 deletions
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45
libcef/browser/browser_host_impl_win.cc
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@ -14,6 +14,8 @@
#include "libcef/browser/thread_util.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "base/win/registry.h"
#include "base/win/windows_version.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/web_contents_view.h"
@ -133,6 +135,31 @@ bool RunOpenMultiFileDialog(const std::wstring& filter, HWND owner,
return success;
}
// According to Mozilla in uriloader/exthandler/win/nsOSHelperAppService.cpp:
// "Some versions of windows (Win2k before SP3, Win XP before SP1) crash in
// ShellExecute on long URLs (bug 161357 on bugzilla.mozilla.org). IE 5 and 6
// support URLS of 2083 chars in length, 2K is safe."
const int kMaxAddressLengthChars = 2048;
bool HasExternalHandler(const std::string& scheme) {
base::win::RegKey key;
const std::wstring registry_path =
ASCIIToWide(scheme + "\\shell\\open\\command");
key.Open(HKEY_CLASSES_ROOT, registry_path.c_str(), KEY_READ);
if (key.Valid()) {
DWORD size = 0;
key.ReadValue(NULL, NULL, &size, NULL);
if (size > 2) {
// ShellExecute crashes the process when the command is empty.
// We check for "2" because it always returns the trailing NULL.
return true;
}
}
return false;
}
} // namespace
// static
@ -358,3 +385,21 @@ void CefBrowserHostImpl::PlatformRunFileChooser(
files.push_back(file_name);
}
}
void CefBrowserHostImpl::PlatformHandleExternalProtocol(const GURL& url) {
if (CEF_CURRENTLY_ON_FILET()) {
if (!HasExternalHandler(url.scheme()))
return;
const std::string& address = url.spec();
if (address.length() > kMaxAddressLengthChars)
return;
ShellExecuteA(NULL, "open", address.c_str(), NULL, NULL, SW_SHOWNORMAL);
} else {
// Execute on the FILE thread.
CEF_POST_TASK(CEF_FILET,
base::Bind(&CefBrowserHostImpl::PlatformHandleExternalProtocol, this,
url));
}
}