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// Copyright 2014 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.
#ifndef EXTENSIONS_RENDERER_GUEST_VIEW_GUEST_VIEW_INTERNAL_CUSTOM_BINDINGS_H_
#define EXTENSIONS_RENDERER_GUEST_VIEW_GUEST_VIEW_INTERNAL_CUSTOM_BINDINGS_H_
#include <map>
#include "extensions/renderer/object_backed_native_handler.h"
namespace extensions {
class Dispatcher;
// Implements custom bindings for the guestViewInternal API.
class GuestViewInternalCustomBindings : public ObjectBackedNativeHandler {
public:
explicit GuestViewInternalCustomBindings(ScriptContext* context);
~GuestViewInternalCustomBindings() override;
private:
// ResetMapEntry is called as a callback to SetWeak(). It resets the
// weak view reference held in |view_map_|.
static void ResetMapEntry(const v8::WeakCallbackInfo<int>& data);
// AttachGuest attaches a GuestView to a provided container element. Once
// attached, the GuestView will participate in layout of the container page
// and become visible on screen.
// AttachGuest takes four parameters:
// |element_instance_id| uniquely identifies a container within the content
// module is able to host GuestViews.
// |guest_instance_id| uniquely identifies an unattached GuestView.
// |attach_params| is typically used to convey the current state of the
// container element at the time of attachment. These parameters are passed
// down to the GuestView. The GuestView may use these parameters to update the
// state of the guest hosted in another process.
// |callback| is an optional callback that is called once attachment is
// complete. The callback takes in a parameter for the WindowProxy of the
// guest identified by |guest_instance_id|.
void AttachGuest(const v8::FunctionCallbackInfo<v8::Value>& args);
// DetachGuest detaches the container container specified from the associated
// GuestViewBase. DetachGuest takes two parameters:
// |element_instance_id| uniquely identifies a container within the content
// module is able to host GuestViews.
// |callback| is an optional callback that is called once the container has
// been detached.
void DetachGuest(const v8::FunctionCallbackInfo<v8::Value>& args);
// AttachIframeGuest is --site-per-process variant of AttachGuest().
//
// AttachIframeGuest takes a |contentWindow| parameter in addition to the
// parameters to AttachGuest. That parameter is used to identify the
// RenderFrame of the <iframe> container element.
void AttachIframeGuest(const v8::FunctionCallbackInfo<v8::Value>& args);
// GetContentWindow takes in a RenderView routing ID and returns the
// Window JavaScript object for that RenderView.
void GetContentWindow(const v8::FunctionCallbackInfo<v8::Value>& args);
// Destroys the GuestViewContainer given an element instance ID in |args|.
void DestroyContainer(const v8::FunctionCallbackInfo<v8::Value>& args);
// GetViewFromID takes a view ID, and returns the GuestView element associated
// with that ID, if one exists. Otherwise, null is returned.
void GetViewFromID(const v8::FunctionCallbackInfo<v8::Value>& args);
// RegisterDestructionCallback registers a JavaScript callback function to be
// called when the guestview's container is destroyed.
// RegisterDestructionCallback takes in a single paramater, |callback|.
void RegisterDestructionCallback(
const v8::FunctionCallbackInfo<v8::Value>& args);
// RegisterElementResizeCallback registers a JavaScript callback function to
// be called when the element is resized. RegisterElementResizeCallback takes
// a single parameter, |callback|.
void RegisterElementResizeCallback(
const v8::FunctionCallbackInfo<v8::Value>& args);
// RegisterView takes in a view ID and a GuestView element, and stores the
// pair as an entry in |view_map_|. The view can then be retrieved using
// GetViewFromID.
void RegisterView(const v8::FunctionCallbackInfo<v8::Value>& args);
// Runs a JavaScript function with user gesture.
//
// This is used to request webview element to enter fullscreen (from the
// embedder).
// Note that the guest requesting fullscreen means it has already been
// triggered by a user gesture and we get to this point if embedder allows
// the fullscreen request to proceed.
void RunWithGesture(
const v8::FunctionCallbackInfo<v8::Value>& args);
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_GUEST_VIEW_GUEST_VIEW_INTERNAL_CUSTOM_BINDINGS_H_
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