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chrome_frame_npapi.cc
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// Copyright (c) 2009 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 "chrome_frame/chrome_frame_npapi.h"
#include "base/basictypes.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "base/string_util.h"
#include "base/win_util.h"
#include "chrome/test/automation/tab_proxy.h"
#include "chrome_frame/ff_privilege_check.h"
#include "chrome_frame/utils.h"
MessageLoop* ChromeFrameNPAPI::message_loop_ = NULL;
int ChromeFrameNPAPI::instance_count_ = 0;
static const char* kNpEventNames[] = {
"focus",
"blur",
};
NPClass ChromeFrameNPAPI::plugin_class_ = {
NP_CLASS_STRUCT_VERSION,
ChromeFrameNPAPI::AllocateObject,
ChromeFrameNPAPI::DeallocateObject,
ChromeFrameNPAPI::Invalidate,
ChromeFrameNPAPI::HasMethod,
ChromeFrameNPAPI::Invoke,
NULL, // invokeDefault
ChromeFrameNPAPI::HasProperty,
ChromeFrameNPAPI::GetProperty,
ChromeFrameNPAPI::SetProperty,
NULL, // remove property
NULL, // enumeration
NULL, // construct
};
NPIdentifier
ChromeFrameNPAPI::plugin_property_identifiers_[PLUGIN_PROPERTY_COUNT]
= {0};
const NPUTF8* ChromeFrameNPAPI::plugin_property_identifier_names_[] = {
"version",
"src",
"onload",
"onloaderror",
"onmessage",
"readystate",
"onprivatemessage",
"usechromenetwork",
};
const NPUTF8* ChromeFrameNPAPI::plugin_method_identifier_names_[] = {
"postMessage",
"postPrivateMessage",
};
ChromeFrameNPAPI::PluginMethod ChromeFrameNPAPI::plugin_methods_[] = {
&ChromeFrameNPAPI::postMessage,
&ChromeFrameNPAPI::postPrivateMessage,
};
NPIdentifier
ChromeFrameNPAPI::plugin_method_identifiers_[arraysize(plugin_methods_)]
= {0};
void ChromeFrameNPAPI::CompileAsserts() {
NOTREACHED(); // This function should never be invoked.
COMPILE_ASSERT(arraysize(plugin_method_identifier_names_) ==
arraysize(plugin_methods_),
you_must_add_both_plugin_method_and_name);
COMPILE_ASSERT(arraysize(plugin_property_identifier_names_) ==
arraysize(plugin_property_identifiers_),
you_must_add_both_plugin_property_and_name);
}
static const int kMaxBytesForPluginConsumption = 0x7FFFFFFF;
static const char kPluginSrcAttribute[] = "src";
static const char kPluginForceFullPageAttribute[] = "force_full_page";
static const char kPluginOnloadAttribute[] = "onload";
static const char kPluginOnErrorAttribute[] = "onloaderror";
static const char kPluginOnMessageAttribute[] = "onmessage";
static const char kPluginOnPrivateMessageAttribute[] = "onprivatemessage";
// These properties can only be set in arguments at control instantiation.
// When the privileged_mode property is provided and set to true, the control
// will probe for whether its hosting document has the system principal, in
// which case privileged mode will be enabled.
static const char kPluginPrivilegedModeAttribute[] = "privileged_mode";
// If privileged mode is enabled, the string value of this argument will
// be appended to the chrome.exe command line.
static const char kPluginChromeExtraArguments[] = "chrome_extra_arguments";
// If privileged mode is enabled, the string value of this argument will
// be used as the profile name for our chrome.exe instance.
static const char kPluginChromeProfileName[] = "chrome_profile_name";
// If chrome network stack is to be used
static const char kPluginUseChromeNetwork[] = "usechromenetwork";
NPError NPP_New(NPMIMEType plugin_type, NPP instance, uint16 mode, int16 argc,
char* argn[], char* argv[], NPSavedData* saved) {
if (instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
ChromeFrameNPAPI::ChromeFrameNPObject* chrome_frame_npapi_obj =
reinterpret_cast<ChromeFrameNPAPI::ChromeFrameNPObject*>(
npapi::CreateObject(instance, ChromeFrameNPAPI::PluginClass()));
DCHECK(chrome_frame_npapi_obj != NULL);
ChromeFrameNPAPI* plugin_instance =
chrome_frame_npapi_obj->chrome_frame_plugin_instance;
DCHECK(plugin_instance != NULL);
// Note that we MUST set instance->pdata BEFORE calling Initialize. This is
// because Initialize can call back into the NPAPI host which will need the
// pdata field to be set.
chrome_frame_npapi_obj->chrome_frame_plugin_instance =
plugin_instance;
instance->pdata = chrome_frame_npapi_obj;
bool init = plugin_instance->Initialize(plugin_type, instance,
mode, argc, argn, argv);
DCHECK(init);
return NPERR_NO_ERROR;
}
NPError NPP_Destroy(NPP instance, NPSavedData** save) {
// Takes ownership and releases the object at the end of scope.
ScopedNpObject<ChromeFrameNPAPI::ChromeFrameNPObject> chrome_frame_npapi_obj(
reinterpret_cast<ChromeFrameNPAPI::ChromeFrameNPObject*>(
instance->pdata));
if (chrome_frame_npapi_obj.get()) {
ChromeFrameNPAPI* plugin_instance =
ChromeFrameNPAPI::ChromeFrameInstanceFromPluginInstance(instance);
plugin_instance->Uninitialize();
instance->pdata = NULL;
}
return NPERR_NO_ERROR;
}
NPError NPP_SetWindow(NPP instance, NPWindow* window_info) {
if (window_info == NULL) {
NOTREACHED();
return NPERR_GENERIC_ERROR;
}
ChromeFrameNPAPI* plugin_instance =
ChromeFrameNPAPI::ChromeFrameInstanceFromPluginInstance(instance);
if (plugin_instance == NULL) {
return NPERR_INVALID_INSTANCE_ERROR;
}
plugin_instance->SetWindow(window_info);
return NPERR_NO_ERROR;
}
NPError NPP_NewStream(NPP instance, NPMIMEType type, NPStream* stream,
NPBool seekable, uint16* stream_type) {
NPAPIUrlRequest* url_request = ChromeFrameNPAPI::ValidateRequest(
instance, stream->notifyData);
if (url_request) {
if (!url_request->OnStreamCreated(type, stream))
return NPERR_GENERIC_ERROR;
}
// We need to return the requested stream mode if we are returning a success
// code. If we don't do this it causes Opera to blow up.
*stream_type = NP_NORMAL;
return NPERR_NO_ERROR;
}
NPError NPP_DestroyStream(NPP instance, NPStream* stream, NPReason reason) {
NPAPIUrlRequest* url_request = ChromeFrameNPAPI::ValidateRequest(
instance, stream->notifyData);
if (url_request) {
url_request->OnStreamDestroyed(reason);
}
return NPERR_NO_ERROR;
}
NPError NPP_GetValue(NPP instance, NPPVariable variable, void* value) {
if (variable == NPPVpluginScriptableNPObject) {
void** plugin = reinterpret_cast<void**>(value);
ChromeFrameNPAPI::ChromeFrameNPObject* chrome_frame_npapi_obj =
reinterpret_cast<ChromeFrameNPAPI::ChromeFrameNPObject*>(
instance->pdata);
// Return value is expected to be retained
npapi::RetainObject(reinterpret_cast<NPObject*>(chrome_frame_npapi_obj));
*plugin = chrome_frame_npapi_obj;
return NPERR_NO_ERROR;
}
return NPERR_GENERIC_ERROR;
}
NPError NPP_SetValue(NPP instance, NPNVariable variable, void* value) {
return NPERR_GENERIC_ERROR;
}
int32 NPP_WriteReady(NPP instance, NPStream* stream) {
NPAPIUrlRequest* url_request = ChromeFrameNPAPI::ValidateRequest(
instance, stream->notifyData);
if (url_request) {
return url_request->OnWriteReady();
}
return kMaxBytesForPluginConsumption;
}
int32 NPP_Write(NPP instance, NPStream* stream, int32 offset, int32 len,
void* buffer) {
NPAPIUrlRequest* url_request = ChromeFrameNPAPI::ValidateRequest(
instance, stream->notifyData);
if (url_request) {
return url_request->OnWrite(buffer, len);
}
return len;
}
void NPP_URLNotify(NPP instance, const char* url, NPReason reason,
void* notifyData) {
ChromeFrameNPAPI* plugin_instance =
ChromeFrameNPAPI::ChromeFrameInstanceFromPluginInstance(instance);
if (plugin_instance) {
plugin_instance->UrlNotify(url, reason, notifyData);
}
}
void NPP_Print(NPP instance, NPPrint* print_info) {
ChromeFrameNPAPI* plugin_instance =
ChromeFrameNPAPI::ChromeFrameInstanceFromPluginInstance(instance);
if (plugin_instance == NULL) {
NOTREACHED();
return;
}
plugin_instance->Print(print_info);
}
// ChromeFrameNPAPI member defines.
// TODO(tommi): remove ignore_setfocus_ since that's not how focus is
// handled anymore.
ChromeFrameNPAPI::ChromeFrameNPAPI()
: instance_(NULL),
mode_(NP_EMBED),
force_full_page_plugin_(false),
ready_state_(READYSTATE_LOADING),
enabled_popups_(false) {
}
ChromeFrameNPAPI::~ChromeFrameNPAPI() {
if (IsWindow()) {
if (!UnsubclassWindow()) {
// TODO(tommi): Figure out why this can sometimes happen in the
// WidgetModeFF_Resize unittest.
DLOG(ERROR) << "Couldn't unsubclass safely!";
UnsubclassWindow(TRUE);
}
}
m_hWnd = NULL;
instance_count_--;
if (instance_count_ <= 0) {
delete message_loop_;
message_loop_ = NULL;
}
Uninitialize();
}
std::string GetLocation(NPP instance, NPObject* window) {
if (!window) {
// Can fail if the browser is closing (seen in Opera).
return "";
}
std::string result;
ScopedNpVariant href;
ScopedNpVariant location;
bool ok = npapi::GetProperty(instance, window,
npapi::GetStringIdentifier("location"), &location);
DCHECK(ok);
DCHECK(location.type == NPVariantType_Object);
if (ok) {
ok = npapi::GetProperty(instance,
location.value.objectValue,
npapi::GetStringIdentifier("href"),
&href);
DCHECK(ok);
DCHECK(href.type == NPVariantType_String);
if (ok) {
result.assign(href.value.stringValue.UTF8Characters,
href.value.stringValue.UTF8Length);
}
}
return result;
}
std::string ChromeFrameNPAPI::GetLocation() {
// Note that GetWindowObject() will cache the window object here.
return ::GetLocation(instance_, GetWindowObject());
}
bool ChromeFrameNPAPI::Initialize(NPMIMEType mime_type, NPP instance,
uint16 mode, int16 argc, char* argn[],
char* argv[]) {
if (!Base::Initialize())
return false;
instance_ = instance;
mime_type_ = mime_type;
mode_ = mode;
document_url_ = GetLocation();
if (instance_count_ == 0) {
DCHECK(message_loop_ == NULL);
message_loop_ = new MessageLoop();
}
instance_count_++;
// Create our prefs service wrapper here.
DCHECK(!pref_service_.get());
pref_service_ = CreatePrefService();
if (!pref_service_.get()) {
NOTREACHED() << "new NpProxyService";
return false;
}
// Temporary variables for privileged only parameters
const char* onprivatemessage_arg = NULL;
const char* chrome_extra_arguments_arg = NULL;
const char* chrome_profile_name_arg = NULL;
bool chrome_network_arg_set = false;
bool chrome_network_arg = false;
bool wants_privileged = false;
for (int i = 0; i < argc; ++i) {
if (LowerCaseEqualsASCII(argn[i], kPluginSrcAttribute)) {
src_ = ResolveURL(GetDocumentUrl(), argv[i]);
} else if (LowerCaseEqualsASCII(argn[i], kPluginForceFullPageAttribute)) {
force_full_page_plugin_ = atoi(argv[i]) ? true : false;
} else if (LowerCaseEqualsASCII(argn[i], kPluginOnErrorAttribute)) {
onerror_handler_ = JavascriptToNPObject(argv[i]);
} else if (LowerCaseEqualsASCII(argn[i], kPluginOnMessageAttribute)) {
onmessage_handler_ = JavascriptToNPObject(argv[i]);
} else if (LowerCaseEqualsASCII(argn[i],
kPluginPrivilegedModeAttribute)) {
// Test for the FireFox privileged mode if the user requests it
// in initialization parameters.
wants_privileged = atoi(argv[i]) ? true : false;
} else if (LowerCaseEqualsASCII(argn[i],
kPluginOnPrivateMessageAttribute)) {
onprivatemessage_arg = argv[i];
} else if (LowerCaseEqualsASCII(argn[i], kPluginChromeExtraArguments)) {
chrome_extra_arguments_arg = argv[i];
} else if (LowerCaseEqualsASCII(argn[i], kPluginChromeProfileName)) {
chrome_profile_name_arg = argv[i];
} else if (LowerCaseEqualsASCII(argn[i], kPluginUseChromeNetwork)) {
chrome_network_arg_set = true;
chrome_network_arg = atoi(argv[i]) ? true : false;
}
}
// Is the privileged mode requested?
if (wants_privileged) {
is_privileged_ = IsFireFoxPrivilegedInvocation(instance);
if (!is_privileged_) {
DLOG(WARNING) << "Privileged mode requested in non-privileged context";
}
}
std::wstring extra_arguments;
std::wstring profile_name(GetHostProcessName(false));
if (is_privileged_) {
// Process any privileged mode-only arguments we were handed.
if (onprivatemessage_arg)
onprivatemessage_handler_ = JavascriptToNPObject(onprivatemessage_arg);
if (chrome_extra_arguments_arg)
extra_arguments = UTF8ToWide(chrome_extra_arguments_arg);
if (chrome_profile_name_arg)
profile_name = UTF8ToWide(chrome_profile_name_arg);
if (chrome_network_arg_set)
automation_client_->set_use_chrome_network(chrome_network_arg);
}
// TODO(joshia): Initialize navigation here and send proxy config as
// part of LaunchSettings
/*
if (!src_.empty())
automation_client_->InitiateNavigation(src_);
std::string proxy_settings;
bool has_prefs = pref_service_->Initialize(instance_,
automation_client_.get());
if (has_prefs && pref_service_->GetProxyValueJSONString(&proxy_settings)) {
automation_client_->SetProxySettings(proxy_settings);
}
*/
// We can't call SubscribeToFocusEvents here since
// when Initialize gets called, Opera is in a state where
// it can't handle calls back and the thread will hang.
// Instead, we call SubscribeToFocusEvents when we initialize
// our plugin window.
// TODO(stoyan): Ask host for specific interface whether to honor
// host's in-private mode.
return InitializeAutomation(profile_name, extra_arguments,
GetBrowserIncognitoMode());
}
void ChromeFrameNPAPI::Uninitialize() {
// Don't call SetReadyState as it will end up calling FireEvent.
// We are in the context of NPP_DESTROY.
ready_state_ = READYSTATE_UNINITIALIZED;
UnsubscribeFromFocusEvents();
if (pref_service_) {
pref_service_->UnInitialize();
pref_service_ = NULL;
}
window_object_.Free();
onerror_handler_.Free();
onmessage_handler_.Free();
onprivatemessage_handler_.Free();
Base::Uninitialize();
}
void ChromeFrameNPAPI::OnFinalMessage(HWND window) {
// The automation server should be gone by now.
Uninitialize();
}
void ChromeFrameNPAPI::SubscribeToFocusEvents() {
DCHECK(focus_listener_.get() == NULL);
focus_listener_ = new DomEventListener(this);
if (!focus_listener_->Subscribe(instance_, kNpEventNames,
arraysize(kNpEventNames))) {
focus_listener_ = NULL;
focus_listener_ = new NPObjectEventListener(this);
if (!focus_listener_->Subscribe(instance_, kNpEventNames,
arraysize(kNpEventNames))) {
DLOG(ERROR) << "Failed to subscribe to focus events";
focus_listener_ = NULL;
}
}
}
void ChromeFrameNPAPI::UnsubscribeFromFocusEvents() {
if (!focus_listener_.get())
return;
bool ret = focus_listener_->Unsubscribe(instance_, kNpEventNames,
arraysize(kNpEventNames));
DLOG_IF(WARNING, !ret) << "focus_listener_->Unsubscribe failed";
focus_listener_ = NULL;
}
bool ChromeFrameNPAPI::SetWindow(NPWindow* window_info) {
if (!window_info || !automation_client_.get()) {
NOTREACHED();
return false;
}
HWND window = reinterpret_cast<HWND>(window_info->window);
if (!::IsWindow(window)) {
// No window created yet. Ignore this call.
return false;
}
if (IsWindow()) {
// We've already subclassed, make sure that SetWindow doesn't get called
// with an HWND other than the one we subclassed during our lifetime.
DCHECK(window == m_hWnd);
return true;
}
automation_client_->SetParentWindow(window);
SubscribeToFocusEvents();
if (force_full_page_plugin_) {
// By default full page mode is only enabled when the plugin is loaded off
// a separate file, i.e. it is the primary content in the window. Even if
// we specify the width/height attributes for the plugin as 100% each, FF
// instantiates the plugin passing in a width/height of 100px each. To
// workaround this we resize the plugin window passed in by FF to the size
// of its parent.
HWND plugin_parent_window = ::GetParent(window);
RECT plugin_parent_rect = {0};
::GetClientRect(plugin_parent_window, &plugin_parent_rect);
::SetWindowPos(window, NULL, plugin_parent_rect.left,
plugin_parent_rect.top,
plugin_parent_rect.right - plugin_parent_rect.left,
plugin_parent_rect.bottom - plugin_parent_rect.top, 0);
}
// Subclass the browser's plugin window here.
if (SubclassWindow(window)) {
DWORD new_style_flags = WS_CLIPCHILDREN;
ModifyStyle(0, new_style_flags, 0);
if (ready_state_ < READYSTATE_INTERACTIVE) {
SetReadyState(READYSTATE_INTERACTIVE);
}
}
return true;
}
void ChromeFrameNPAPI::Print(NPPrint* print_info) {
if (!print_info) {
NOTREACHED();
return;
}
// We dont support full tab mode yet.
if (print_info->mode != NP_EMBED) {
NOTREACHED();
return;
}
NPWindow window = print_info->print.embedPrint.window;
RECT print_bounds = {0};
print_bounds.left = window.x;
print_bounds.top = window.y;
print_bounds.right = window.x + window.width;
print_bounds.bottom = window.x + window.height;
automation_client_->Print(
reinterpret_cast<HDC>(print_info->print.embedPrint.platformPrint),
print_bounds);
}
void ChromeFrameNPAPI::UrlNotify(const char* url, NPReason reason,
void* notify_data) {
if (enabled_popups_) {
// We have opened the URL so tell the browser to restore popup settings
enabled_popups_ = false;
npapi::PopPopupsEnabledState(instance_);
}
// It is now safe to release the additional reference on the request
NPAPIUrlRequest* request = RequestFromNotifyData(notify_data);
if (request) {
request->Stop();
request->Release();
}
}
void ChromeFrameNPAPI::OnAcceleratorPressed(int tab_handle,
const MSG& accel_message) {
DLOG(INFO) << __FUNCTION__ << " msg:"
<< StringPrintf("0x%04X", accel_message.message) << " key:"
<< accel_message.wParam;
// The host browser does call TranslateMessage on messages like WM_KEYDOWN
// WM_KEYUP, etc, which will result in messages like WM_CHAR, WM_SYSCHAR, etc
// being posted to the message queue. We don't post these messages here to
// avoid these messages from getting handled twice.
if (accel_message.message != WM_CHAR &&
accel_message.message != WM_DEADCHAR &&
accel_message.message != WM_SYSCHAR &&
accel_message.message != WM_SYSDEADCHAR) {
// A very primitive way to handle keystrokes.
// TODO(tommi): When we've implemented a way for chrome to
// know when keystrokes are handled (deterministically) on that side,
// then this function should get called and not otherwise.
::PostMessage(::GetParent(m_hWnd), accel_message.message,
accel_message.wParam, accel_message.lParam);
}
if (automation_client_.get()) {
TabProxy* tab = automation_client_->tab();
if (tab) {
tab->ProcessUnhandledAccelerator(accel_message);
}
}
}
void ChromeFrameNPAPI::OnTabbedOut(int tab_handle, bool reverse) {
DLOG(INFO) << __FUNCTION__;
ignore_setfocus_ = true;
HWND parent = ::GetParent(m_hWnd);
::SetFocus(parent);
INPUT input = {0};
input.type = INPUT_KEYBOARD;
input.ki.wVk = VK_TAB;
SendInput(1, &input, sizeof(input));
input.ki.dwFlags = KEYEVENTF_KEYUP;
SendInput(1, &input, sizeof(input));
ignore_setfocus_ = false;
}
void ChromeFrameNPAPI::OnOpenURL(int tab_handle,
const GURL& url, int open_disposition) {
std::string target;
switch (open_disposition) {
case NEW_FOREGROUND_TAB:
target = "_blank";
break;
case NEW_BACKGROUND_TAB:
target = "_blank";
break;
case NEW_WINDOW:
target = "_new";
break;
default:
break;
}
// Tell the browser to temporarily allow popups
enabled_popups_ = true;
npapi::PushPopupsEnabledState(instance_, TRUE);
npapi::GetURLNotify(instance_, url.spec().c_str(), target.c_str(), NULL);
}
void ChromeFrameNPAPI::OnRequestStart(int tab_handle, int request_id,
const IPC::AutomationURLRequest& request) {
scoped_refptr<NPAPIUrlRequest> new_request(new NPAPIUrlRequest(instance_));
DCHECK(new_request);
if (new_request->Initialize(automation_client_.get(), tab_handle,
request_id, request.url, request.method,
request.referrer, request.extra_request_headers,
request.upload_data.get(), true)) {
if (new_request->Start()) {
// Keep additional reference on request for NPSTREAM
// This will be released in NPP_UrlNotify
new_request->AddRef();
}
}
}
void ChromeFrameNPAPI::OnRequestRead(int tab_handle, int request_id,
int bytes_to_read) {
automation_client_->ReadRequest(request_id, bytes_to_read);
}
void ChromeFrameNPAPI::OnRequestEnd(int tab_handle, int request_id,
const URLRequestStatus& status) {
automation_client_->RemoveRequest(request_id, status.status(), true);
}
void ChromeFrameNPAPI::OnSetCookieAsync(int tab_handle, const GURL& url,
const std::string& cookie) {
// Use the newer NPAPI way if available
if (npapi::VersionMinor() >= NPVERS_HAS_URL_AND_AUTH_INFO) {
npapi::SetValueForURL(instance_, NPNURLVCookie, url.spec().c_str(),
cookie.c_str(), cookie.length());
} else if (url == GURL(document_url_)) {
std::string script = "javascript:document.cookie=";
script.append(cookie);
script.append(1, ';');
ExecuteScript(script, NULL);
} else {
// Third party cookie, use nsICookieService to set the cookie.
NOTREACHED();
}
}
bool ChromeFrameNPAPI::HasMethod(NPObject* obj, NPIdentifier name) {
for (int i = 0; i < arraysize(plugin_methods_); ++i) {
if (name == plugin_method_identifiers_[i])
return true;
}
return false;
}
bool ChromeFrameNPAPI::Invoke(NPObject* header, NPIdentifier name,
const NPVariant* args, uint32_t arg_count,
NPVariant* result) {
ChromeFrameNPAPI* plugin_instance = ChromeFrameInstanceFromNPObject(header);
if (!plugin_instance && (plugin_instance->automation_client_.get()))
return false;
bool success = false;
for (int i = 0; i < arraysize(plugin_methods_); ++i) {
if (name == plugin_method_identifiers_[i]) {
PluginMethod method = plugin_methods_[i];
success = (plugin_instance->*method)(header, args, arg_count, result);
break;
}
}
return success;
}
void ChromeFrameNPAPI::InitializeIdentifiers() {
npapi::GetStringIdentifiers(plugin_method_identifier_names_,
arraysize(plugin_methods_),
plugin_method_identifiers_);
npapi::GetStringIdentifiers(plugin_property_identifier_names_,
PLUGIN_PROPERTY_COUNT,
plugin_property_identifiers_);
}
NPObject* ChromeFrameNPAPI::AllocateObject(NPP instance, NPClass* class_name) {
static bool identifiers_initialized = false;
ChromeFrameNPObject* plugin_object = new ChromeFrameNPObject();
DCHECK(plugin_object != NULL);
plugin_object->chrome_frame_plugin_instance = new ChromeFrameNPAPI();
DCHECK(plugin_object->chrome_frame_plugin_instance != NULL);
plugin_object->npp = NULL;
COMPILE_ASSERT(arraysize(plugin_method_identifiers_) ==
arraysize(plugin_method_identifier_names_),
method_count_mismatch);
COMPILE_ASSERT(arraysize(plugin_method_identifiers_) ==
arraysize(plugin_methods_),
method_count_mismatch);
if (!identifiers_initialized) {
InitializeIdentifiers();
identifiers_initialized = true;
}
return reinterpret_cast<NPObject*>(plugin_object);
}
void ChromeFrameNPAPI::DeallocateObject(NPObject* header) {
ChromeFrameNPObject* plugin_object =
reinterpret_cast<ChromeFrameNPObject*>(header);
DCHECK(plugin_object != NULL);
if (plugin_object) {
delete plugin_object->chrome_frame_plugin_instance;
delete plugin_object;
}
}
void ChromeFrameNPAPI::Invalidate(NPObject* header) {
DCHECK(header);
ChromeFrameNPObject* plugin_object =
reinterpret_cast<ChromeFrameNPObject*>(header);
if (plugin_object) {
DCHECK(plugin_object->chrome_frame_plugin_instance);
plugin_object->chrome_frame_plugin_instance->Uninitialize();
}
}
ChromeFrameNPAPI* ChromeFrameNPAPI::ChromeFrameInstanceFromPluginInstance(
NPP instance) {
if ((instance == NULL) || (instance->pdata == NULL)) {
NOTREACHED();
return NULL;
}
return ChromeFrameInstanceFromNPObject(instance->pdata);
}
ChromeFrameNPAPI* ChromeFrameNPAPI::ChromeFrameInstanceFromNPObject(
void* object) {
ChromeFrameNPObject* plugin_object =
reinterpret_cast<ChromeFrameNPObject*>(object);
if (!plugin_object) {
NOTREACHED();
return NULL;
}
DCHECK(plugin_object->chrome_frame_plugin_instance);
return plugin_object->chrome_frame_plugin_instance;
}
bool ChromeFrameNPAPI::HasProperty(NPObject* obj, NPIdentifier name) {
for (int i = 0; i < PLUGIN_PROPERTY_COUNT; ++i) {
if (name == plugin_property_identifiers_[i])
return true;
}
return false;
}
bool ChromeFrameNPAPI::GetProperty(NPIdentifier name,
NPVariant* variant) {
if (name == plugin_property_identifiers_[PLUGIN_PROPERTY_ONERROR]) {
if (onerror_handler_) {
variant->type = NPVariantType_Object;
variant->value.objectValue = onerror_handler_.Copy();
return true;
}
} else if (name == plugin_property_identifiers_[PLUGIN_PROPERTY_ONMESSAGE]) {
if (onmessage_handler_) {
variant->type = NPVariantType_Object;
variant->value.objectValue = onmessage_handler_.Copy();
return true;
}
} else if (name ==
plugin_property_identifiers_[PLUGIN_PROPERTY_ONPRIVATEMESSAGE]) {
if (!is_privileged_) {
DLOG(WARNING) << "Attempt to read onprivatemessage property while not "
"privileged";
} else {
if (onprivatemessage_handler_) {
variant->type = NPVariantType_Object;
variant->value.objectValue =
onprivatemessage_handler_.Copy();
return true;
}
}
} else if (name == plugin_property_identifiers_[PLUGIN_PROPERTY_SRC]) {
AllocateStringVariant(src_, variant);
return true;
} else if (name == plugin_property_identifiers_[PLUGIN_PROPERTY_VERSION]) {
const std::wstring version =
automation_client_->GetVersion();
AllocateStringVariant(WideToUTF8(version), variant);
return true;
} else if (name == plugin_property_identifiers_[PLUGIN_PROPERTY_READYSTATE]) {
INT32_TO_NPVARIANT(ready_state_, *variant);
return true;
} else if (name ==
plugin_property_identifiers_[PLUGIN_PROPERTY_USECHROMENETWORK]) {
BOOLEAN_TO_NPVARIANT(automation_client_->use_chrome_network(), *variant);
return true;
}
return false;
}
bool ChromeFrameNPAPI::GetProperty(NPObject* object, NPIdentifier name,
NPVariant* variant) {
if (!object || !variant) {
NOTREACHED();
return false;
}
ChromeFrameNPAPI* plugin_instance = ChromeFrameInstanceFromNPObject(object);
if (!plugin_instance) {
NOTREACHED();
return false;
}
return plugin_instance->GetProperty(name, variant);
}
bool ChromeFrameNPAPI::SetProperty(NPIdentifier name,
const NPVariant* variant) {
if (NPVARIANT_IS_OBJECT(*variant)) {
if (name == plugin_property_identifiers_[PLUGIN_PROPERTY_ONERROR]) {
onerror_handler_.Free();
onerror_handler_ = variant->value.objectValue;
return true;
} else if (
name == plugin_property_identifiers_[PLUGIN_PROPERTY_ONMESSAGE]) {
onmessage_handler_.Free();
onmessage_handler_ = variant->value.objectValue;
return true;
} else if (name ==
plugin_property_identifiers_[PLUGIN_PROPERTY_ONPRIVATEMESSAGE]) {
if (!is_privileged_) {
DLOG(WARNING) << "Attempt to set onprivatemessage while not privileged";
} else {
onprivatemessage_handler_.Free();
onprivatemessage_handler_ = variant->value.objectValue;
return true;
}
}
} else if (NPVARIANT_IS_STRING(*variant) || NPVARIANT_IS_NULL(*variant)) {
if (name == plugin_property_identifiers_[PLUGIN_PROPERTY_SRC]) {
return NavigateToURL(variant, 1, NULL);
}
} else if (NPVARIANT_IS_BOOLEAN(*variant)) {
if (name ==
plugin_property_identifiers_[PLUGIN_PROPERTY_USECHROMENETWORK]) {
automation_client_->set_use_chrome_network(
NPVARIANT_TO_BOOLEAN(*variant));
}
}
return false;
}
bool ChromeFrameNPAPI::SetProperty(NPObject* object, NPIdentifier name,
const NPVariant* variant) {
if (!object || !variant) {
DLOG(ERROR) << "Cannot set property: " << npapi::StringFromIdentifier(name);
return false;
}
ChromeFrameNPAPI* plugin_instance = ChromeFrameInstanceFromNPObject(object);
if (!plugin_instance) {
NOTREACHED();
return false;
}
return plugin_instance->SetProperty(name, variant);
}
void ChromeFrameNPAPI::OnFocus() {
DLOG(INFO) << __FUNCTION__;
PostMessage(WM_SETFOCUS, 0, 0);
}
void ChromeFrameNPAPI::OnEvent(const char* event_name) {
DCHECK(event_name);
DLOG(INFO) << event_name;
if (lstrcmpiA(event_name, "focus") == 0) {
OnFocus();
} else if (lstrcmpiA(event_name, "blur") == 0) {
OnBlur();
} else {
NOTREACHED() << event_name;
}
}
LRESULT CALLBACK ChromeFrameNPAPI::DropKillFocusHook(int code, WPARAM wparam,
LPARAM lparam) {
LRESULT ret = 0;
CWPSTRUCT* wp = reinterpret_cast<CWPSTRUCT*>(lparam);
if ((code < 0) || (wp->message != WM_KILLFOCUS))
ret = ::CallNextHookEx(NULL, code, wparam, lparam);
return ret;
}
LRESULT ChromeFrameNPAPI::OnSetFocus(UINT message, WPARAM wparam,
LPARAM lparam, BOOL& handled) { // NO_LINT
// Opera has a WH_CALLWNDPROC hook that handles WM_KILLFOCUS and
// prevents us from setting the focus to the tab.
// To work around that, we set a temporary hook here that does nothing
// (not even call other hooks) when it sees WM_KILLFOCUS.
HHOOK hook = NULL;
hook = ::SetWindowsHookEx(WH_CALLWNDPROC, DropKillFocusHook, NULL,
::GetCurrentThreadId());
// Since we chain message maps, make sure we are not calling base class
// twice for WM_SETFOCUS.
BOOL handled_by_base = TRUE;
LRESULT ret = Base::OnSetFocus(message, wparam, lparam, handled_by_base);
if (hook)
::UnhookWindowsHookEx(hook);
return ret;
}
void ChromeFrameNPAPI::OnBlur() {
DLOG(INFO) << __FUNCTION__;
}
void ChromeFrameNPAPI::OnLoad(int, const GURL& gurl) {
DLOG(INFO) << "Firing onload";
FireEvent("load", gurl.spec());
}
void ChromeFrameNPAPI::OnLoadFailed(int error_code, const std::string& url) {
FireEvent("loaderror", url);
ScopedNpVariant result;
InvokeDefault(onerror_handler_, url, &result);
}
void ChromeFrameNPAPI::OnMessageFromChromeFrame(int tab_handle,
const std::string& message,
const std::string& origin,
const std::string& target) {
bool private_message = false;
if (target.compare("*") != 0) {
if (is_privileged_) {
private_message = true;
} else {
if (!HaveSameOrigin(target, document_url_)) {
DLOG(WARNING) << "Dropping posted message since target doesn't match "
"the current document's origin. target=" << target;
return;
}