libcef:

- Add support for embedded netscape-style plugins.
- Add new webkit_glue VisitedLinkHash() and IsLinkVisited() functions required by underlying chromium changes.
cefclient:
- Add sample netscape-style plugin implementation and related Plugin item on the Tests menu.
- Increase the speed of the update timer so that buttons refresh closer to real-time.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@5 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/plugins/browser_plugin_stream_win.cc

@@ -0,0 +1,99 @@
+// Copyright (c) 2008 The Chromium Embedded Framework Authors.
+// Portions copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "precompiled_libcef.h"
+#include "browser_plugin_stream.h"
+#include "browser_plugin_instance.h"
+
+#include "base/logging.h"
+
+namespace NPAPI {
+
+BrowserPluginStream::BrowserPluginStream(
+    BrowserPluginInstance *instance,
+    const char *url,
+    bool need_notify,
+    void *notify_data)
+    : instance_(instance),
+      notify_needed_(need_notify),
+      notify_data_(notify_data),
+      close_on_write_data_(false),
+      opened_(false),
+      requested_plugin_mode_(NP_NORMAL),
+      temp_file_handle_(INVALID_HANDLE_VALUE),
+      seekable_stream_(false),
+      data_offset_(0) {
+  memset(&stream_, 0, sizeof(stream_));
+  stream_.url = _strdup(url);
+  temp_file_name_[0] = '\0';
+}
+
+void BrowserPluginStream::UpdateUrl(const char* url) {
+  DCHECK(!opened_);
+  free(const_cast<char*>(stream_.url));
+  stream_.url = _strdup(url);
+}
+
+void BrowserPluginStream::WriteAsFile() {
+  if (requested_plugin_mode_ == NP_ASFILE ||
+      requested_plugin_mode_ == NP_ASFILEONLY)
+    instance_->NPP_StreamAsFile(&stream_, temp_file_name_);
+}
+
+size_t BrowserPluginStream::WriteBytes(const char *buf, size_t length) {
+  DWORD bytes;
+
+  if (!WriteFile(temp_file_handle_, buf, length, &bytes, 0))
+    return 0U;
+
+  return static_cast<size_t>(bytes);
+}
+
+bool BrowserPluginStream::OpenTempFile() {
+  DCHECK(temp_file_handle_ == INVALID_HANDLE_VALUE);
+
+  // The reason for using all the Ascii versions of these filesystem
+  // calls is that the filename which we pass back to the plugin
+  // via NPAPI is an ascii filename.  Otherwise, we'd use wide-chars.
+  //
+  // TODO:
+  // This is a bug in NPAPI itself, and it needs to be fixed.
+  // The case which will fail is if a user has a multibyte name,
+  // but has the system locale set to english.  GetTempPathA will
+  // return junk in this case, causing us to be unable to open the
+  // file.
+
+  char temp_directory[MAX_PATH];
+  if (GetTempPathA(MAX_PATH, temp_directory) == 0)
+    return false;
+  if (GetTempFileNameA(temp_directory, "npstream", 0, temp_file_name_) == 0)
+    return false;
+  temp_file_handle_ = CreateFileA(temp_file_name_,
+                                  FILE_ALL_ACCESS,
+                                  FILE_SHARE_READ,
+                                  0,
+                                  CREATE_ALWAYS,
+                                  FILE_ATTRIBUTE_NORMAL,
+                                  0);
+  if (temp_file_handle_ == INVALID_HANDLE_VALUE) {
+    temp_file_name_[0] = '\0';
+    return false;
+  }
+  return true;
+}
+
+void BrowserPluginStream::CloseTempFile() {
+  if (temp_file_handle_ != INVALID_HANDLE_VALUE) {
+    CloseHandle(temp_file_handle_);
+    temp_file_handle_ = INVALID_HANDLE_VALUE;
+  }
+}
+
+bool BrowserPluginStream::TempFileIsValid() {
+  return temp_file_handle_ != INVALID_HANDLE_VALUE;
+}
+
+}  // namespace NPAPI
+