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// Copyright (c) 2010 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/cpp/instance.h"
#include "ppapi/c/dev/ppp_printing_dev.h"
#include "ppapi/c/ppb_instance.h"
#include "ppapi/cpp/common.h"
#include "ppapi/cpp/dev/graphics_3d_dev.h"
#include "ppapi/cpp/graphics_2d.h"
#include "ppapi/cpp/image_data.h"
#include "ppapi/cpp/logging.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/module_impl.h"
#include "ppapi/cpp/point.h"
#include "ppapi/cpp/resource.h"
#include "ppapi/cpp/var.h"
namespace {
DeviceFuncs<PPB_Instance> ppb_instance_f(PPB_INSTANCE_INTERFACE);
} // namespace
namespace pp {
Instance::Instance(PP_Instance instance) : pp_instance_(instance) {
}
Instance::~Instance() {
// Ensure that all per-instance objects have been removed. Generally, these
// objects should have their lifetime scoped to the instance, such as being
// instance members or even implemented by your instance sub-class directly.
//
// If they're not unregistered at this point, they will usually have a
// dangling reference to the instance, which can cause a crash later.
PP_DCHECK(interface_name_to_objects_.empty());
}
bool Instance::Init(uint32_t /*argc*/, const char* /*argn*/[],
const char* /*argv*/[]) {
return true;
}
void Instance::DidChangeView(const pp::Rect& /*position*/,
const pp::Rect& /*clip*/) {
}
void Instance::DidChangeFocus(bool /*has_focus*/) {
}
bool Instance::HandleDocumentLoad(const URLLoader& /*url_loader*/) {
return false;
}
bool Instance::HandleInputEvent(const PP_InputEvent& /*event*/) {
return false;
}
Var Instance::GetInstanceObject() {
return Var();
}
Var Instance::GetSelectedText(bool /* html */) {
return Var();
}
Var Instance::GetWindowObject() {
if (!ppb_instance_f)
return Var();
return Var(Var::PassRef(), ppb_instance_f->GetWindowObject(pp_instance()));
}
Var Instance::GetOwnerElementObject() {
if (!ppb_instance_f)
return Var();
return Var(Var::PassRef(),
ppb_instance_f->GetOwnerElementObject(pp_instance()));
}
bool Instance::BindGraphics(const Graphics2D& graphics) {
if (!ppb_instance_f)
return false;
return PPBoolToBool(ppb_instance_f->BindGraphics(pp_instance(),
graphics.pp_resource()));
}
bool Instance::BindGraphics(const Graphics3D_Dev& graphics) {
if (!ppb_instance_f)
return false;
return PPBoolToBool(ppb_instance_f->BindGraphics(pp_instance(),
graphics.pp_resource()));
}
bool Instance::IsFullFrame() {
if (!ppb_instance_f)
return false;
return PPBoolToBool(ppb_instance_f->IsFullFrame(pp_instance()));
}
Var Instance::ExecuteScript(const Var& script, Var* exception) {
if (!ppb_instance_f)
return Var();
return Var(Var::PassRef(),
ppb_instance_f->ExecuteScript(pp_instance(), script.pp_var(),
Var::OutException(exception).get()));
}
void Instance::AddPerInstanceObject(const std::string& interface_name,
void* object) {
// Ensure we're not trying to register more than one object per interface
// type. Otherwise, we'll get confused in GetPerInstanceObject.
PP_DCHECK(interface_name_to_objects_.find(interface_name) ==
interface_name_to_objects_.end());
interface_name_to_objects_[interface_name] = object;
}
void Instance::RemovePerInstanceObject(const std::string& interface_name,
void* object) {
InterfaceNameToObjectMap::iterator found = interface_name_to_objects_.find(
interface_name);
if (found == interface_name_to_objects_.end()) {
// Attempting to unregister an object that doesn't exist or was already
// unregistered.
PP_DCHECK(false);
return;
}
// Validate that we're removing the object we thing we are.
PP_DCHECK(found->second == object);
(void)object; // Prevent warning in release mode.
interface_name_to_objects_.erase(found);
}
// static
void* Instance::GetPerInstanceObject(PP_Instance instance,
const std::string& interface_name) {
Instance* that = Module::Get()->InstanceForPPInstance(instance);
if (!that)
return NULL;
InterfaceNameToObjectMap::iterator found =
that->interface_name_to_objects_.find(interface_name);
if (found == that->interface_name_to_objects_.end())
return NULL;
return found->second;
}
} // namespace pp
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