1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CONTENT_RENDERER_RENDER_PROCESS_H_
6 #define CONTENT_RENDERER_RENDER_PROCESS_H_
8 #include "content/child/child_process.h"
9 #include "skia/ext/platform_canvas.h"
19 // A abstract interface representing the renderer end of the browser<->renderer
20 // connection. The opposite end is the RenderProcessHost. This is a singleton
21 // object for each renderer.
23 // RenderProcessImpl implements this interface for the regular browser.
24 // MockRenderProcess implements this interface for certain tests, especially
25 // ones derived from RenderViewTest.
26 class RenderProcess : public ChildProcess {
29 virtual ~RenderProcess() {}
31 // Get a canvas suitable for drawing and transporting to the browser
32 // memory: (output) the transport DIB memory
33 // rect: the rectangle which will be painted, use for sizing the canvas
34 // returns: NULL on error
36 // When no longer needed, you should pass the TransportDIB to
37 // ReleaseTransportDIB so that it can be recycled.
38 virtual SkCanvas* GetDrawingCanvas(TransportDIB** memory,
39 const gfx::Rect& rect) = 0;
41 // Frees shared memory allocated by AllocSharedMemory. You should only use
42 // this function to free the SharedMemory object.
43 virtual void ReleaseTransportDIB(TransportDIB* memory) = 0;
45 // Returns true if plugisn should be loaded in-process.
46 virtual bool UseInProcessPlugins() const = 0;
48 // Keep track of the cumulative set of enabled bindings for this process,
50 virtual void AddBindings(int bindings) = 0;
52 // The cumulative set of enabled bindings for this process.
53 virtual int GetEnabledBindings() const = 0;
55 // Create a new transport DIB of, at least, the given size. Return NULL on
57 virtual TransportDIB* CreateTransportDIB(size_t size) = 0;
58 virtual void FreeTransportDIB(TransportDIB*) = 0;
60 // Returns a pointer to the RenderProcess singleton instance. Assuming that
61 // we're actually a renderer or a renderer test, this static cast will
63 static RenderProcess* current() {
64 return static_cast<RenderProcess*>(ChildProcess::current());
68 DISALLOW_COPY_AND_ASSIGN(RenderProcess);
71 } // namespace content
73 #endif // CONTENT_RENDERER_RENDER_PROCESS_H_