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// Copyright (c) 2011 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 "ppapi/proxy/ppp_instance_proxy.h"
#include <algorithm>
#include "ppapi/c/pp_var.h"
#include "ppapi/c/ppb_core.h"
#include "ppapi/c/ppp_instance.h"
#include "ppapi/c/private/ppb_flash_fullscreen.h"
#include "ppapi/proxy/host_dispatcher.h"
#include "ppapi/proxy/plugin_dispatcher.h"
#include "ppapi/proxy/plugin_resource_tracker.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/ppb_url_loader_proxy.h"
#include "ppapi/shared_impl/ppapi_globals.h"
namespace ppapi {
namespace proxy {
namespace {
PP_Bool DidCreate(PP_Instance instance,
uint32_t argc,
const char* argn[],
const char* argv[]) {
std::vector<std::string> argn_vect;
std::vector<std::string> argv_vect;
for (uint32_t i = 0; i < argc; i++) {
argn_vect.push_back(std::string(argn[i]));
argv_vect.push_back(std::string(argv[i]));
}
PP_Bool result = PP_FALSE;
HostDispatcher::GetForInstance(instance)->Send(
new PpapiMsg_PPPInstance_DidCreate(INTERFACE_ID_PPP_INSTANCE, instance,
argn_vect, argv_vect, &result));
return result;
}
void DidDestroy(PP_Instance instance) {
HostDispatcher::GetForInstance(instance)->Send(
new PpapiMsg_PPPInstance_DidDestroy(INTERFACE_ID_PPP_INSTANCE, instance));
}
void DidChangeView(PP_Instance instance,
const PP_Rect* position,
const PP_Rect* clip) {
HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance);
const PPB_FlashFullscreen* fullscreen_interface =
static_cast<const PPB_FlashFullscreen*>(
dispatcher->local_get_interface()(PPB_FLASHFULLSCREEN_INTERFACE));
DCHECK(fullscreen_interface);
const PPB_FlashFullscreen* flash_fullscreen_interface =
static_cast<const PPB_FlashFullscreen*>(
dispatcher->local_get_interface()(PPB_FLASHFULLSCREEN_INTERFACE));
DCHECK(flash_fullscreen_interface);
PP_Bool fullscreen = fullscreen_interface->IsFullscreen(instance);
PP_Bool flash_fullscreen =
flash_fullscreen_interface->IsFullscreen(instance);
dispatcher->Send(
new PpapiMsg_PPPInstance_DidChangeView(INTERFACE_ID_PPP_INSTANCE,
instance, *position, *clip,
fullscreen,
flash_fullscreen));
}
void DidChangeFocus(PP_Instance instance, PP_Bool has_focus) {
HostDispatcher::GetForInstance(instance)->Send(
new PpapiMsg_PPPInstance_DidChangeFocus(INTERFACE_ID_PPP_INSTANCE,
instance, has_focus));
}
PP_Bool HandleDocumentLoad(PP_Instance instance,
PP_Resource url_loader) {
PP_Bool result = PP_FALSE;
HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance);
// Set up the URLLoader for proxying.
PPB_URLLoader_Proxy* url_loader_proxy = static_cast<PPB_URLLoader_Proxy*>(
dispatcher->GetInterfaceProxy(INTERFACE_ID_PPB_URL_LOADER));
url_loader_proxy->PrepareURLLoaderForSendingToPlugin(url_loader);
// PluginResourceTracker in the plugin process assumes that resources that it
// tracks have been addrefed on behalf of the plugin at the renderer side. So
// we explicitly do it for |url_loader| here.
//
// Please also see comments in PPP_Instance_Proxy::OnMsgHandleDocumentLoad()
// about releasing of this extra reference.
const PPB_Core* core = reinterpret_cast<const PPB_Core*>(
dispatcher->local_get_interface()(PPB_CORE_INTERFACE));
if (!core) {
NOTREACHED();
return PP_FALSE;
}
core->AddRefResource(url_loader);
HostResource serialized_loader;
serialized_loader.SetHostResource(instance, url_loader);
dispatcher->Send(new PpapiMsg_PPPInstance_HandleDocumentLoad(
INTERFACE_ID_PPP_INSTANCE, instance, serialized_loader, &result));
return result;
}
static const PPP_Instance_1_0 instance_interface_1_0 = {
&DidCreate,
&DidDestroy,
&DidChangeView,
&DidChangeFocus,
&HandleDocumentLoad
};
InterfaceProxy* CreateInstanceProxy(Dispatcher* dispatcher) {
return new PPP_Instance_Proxy(dispatcher);
}
} // namespace
PPP_Instance_Proxy::PPP_Instance_Proxy(Dispatcher* dispatcher)
: InterfaceProxy(dispatcher) {
if (dispatcher->IsPlugin()) {
combined_interface_.reset(
new PPP_Instance_Combined(*static_cast<const PPP_Instance_1_0*>(
dispatcher->local_get_interface()(PPP_INSTANCE_INTERFACE_1_0))));
}
}
PPP_Instance_Proxy::~PPP_Instance_Proxy() {
}
// static
const InterfaceProxy::Info* PPP_Instance_Proxy::GetInfo1_0() {
static const Info info = {
&instance_interface_1_0,
PPP_INSTANCE_INTERFACE_1_0,
INTERFACE_ID_PPP_INSTANCE,
false,
&CreateInstanceProxy
};
return &info;
}
bool PPP_Instance_Proxy::OnMessageReceived(const IPC::Message& msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PPP_Instance_Proxy, msg)
IPC_MESSAGE_HANDLER(PpapiMsg_PPPInstance_DidCreate,
OnMsgDidCreate)
IPC_MESSAGE_HANDLER(PpapiMsg_PPPInstance_DidDestroy,
OnMsgDidDestroy)
IPC_MESSAGE_HANDLER(PpapiMsg_PPPInstance_DidChangeView,
OnMsgDidChangeView)
IPC_MESSAGE_HANDLER(PpapiMsg_PPPInstance_DidChangeFocus,
OnMsgDidChangeFocus)
IPC_MESSAGE_HANDLER(PpapiMsg_PPPInstance_HandleDocumentLoad,
OnMsgHandleDocumentLoad)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PPP_Instance_Proxy::OnMsgDidCreate(
PP_Instance instance,
const std::vector<std::string>& argn,
const std::vector<std::string>& argv,
PP_Bool* result) {
*result = PP_FALSE;
if (argn.size() != argv.size())
return;
// Set up the routing associating this new instance with the dispatcher we
// just got the message from. This must be done before calling into the
// plugin so it can in turn call PPAPI functions.
PluginDispatcher* plugin_dispatcher =
static_cast<PluginDispatcher*>(dispatcher());
plugin_dispatcher->DidCreateInstance(instance);
PpapiGlobals::Get()->GetResourceTracker()->DidCreateInstance(instance);
// Make sure the arrays always have at least one element so we can take the
// address below.
std::vector<const char*> argn_array(
std::max(static_cast<size_t>(1), argn.size()));
std::vector<const char*> argv_array(
std::max(static_cast<size_t>(1), argn.size()));
for (size_t i = 0; i < argn.size(); i++) {
argn_array[i] = argn[i].c_str();
argv_array[i] = argv[i].c_str();
}
DCHECK(combined_interface_.get());
*result = combined_interface_->DidCreate(instance,
static_cast<uint32_t>(argn.size()),
&argn_array[0], &argv_array[0]);
}
void PPP_Instance_Proxy::OnMsgDidDestroy(PP_Instance instance) {
combined_interface_->DidDestroy(instance);
PpapiGlobals::Get()->GetResourceTracker()->DidDeleteInstance(instance);
static_cast<PluginDispatcher*>(dispatcher())->DidDestroyInstance(instance);
}
void PPP_Instance_Proxy::OnMsgDidChangeView(PP_Instance instance,
const PP_Rect& position,
const PP_Rect& clip,
PP_Bool fullscreen,
PP_Bool flash_fullscreen) {
PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance);
if (!dispatcher)
return;
InstanceData* data = dispatcher->GetInstanceData(instance);
if (!data)
return;
data->position = position;
data->fullscreen = fullscreen;
data->flash_fullscreen = flash_fullscreen;
combined_interface_->DidChangeView(instance, &position, &clip);
}
void PPP_Instance_Proxy::OnMsgDidChangeFocus(PP_Instance instance,
PP_Bool has_focus) {
combined_interface_->DidChangeFocus(instance, has_focus);
}
void PPP_Instance_Proxy::OnMsgHandleDocumentLoad(PP_Instance instance,
const HostResource& url_loader,
PP_Bool* result) {
PP_Resource plugin_loader =
PPB_URLLoader_Proxy::TrackPluginResource(url_loader);
*result = combined_interface_->HandleDocumentLoad(instance, plugin_loader);
// This balances the one reference that TrackPluginResource() initialized it
// with. The plugin will normally take an additional reference which will keep
// the resource alive in the plugin (and the one reference in the renderer
// representing all plugin references).
// Once all references at the plugin side are released, the renderer side will
// be notified and release the reference added in HandleDocumentLoad() above.
PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(plugin_loader);
}
} // namespace proxy
} // namespace ppapi
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