1 // Copyright 2015 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 COMPONENTS_HTML_VIEWER_SETUP_H_
6 #define COMPONENTS_HTML_VIEWER_SETUP_H_
8 #include "base/basictypes.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "base/threading/thread.h"
11 #include "components/html_viewer/discardable_memory_allocator.h"
12 #include "components/resource_provider/public/cpp/resource_loader.h"
13 #include "ui/gfx/geometry/size.h"
16 class ApplicationImpl
;
21 class RendererScheduler
;
24 namespace html_viewer
{
26 class BlinkPlatformImpl
;
28 class WebMediaPlayerFactory
;
30 // Setup encapsulates the necessary state needed by HTMLViewer. Some objects
31 // are created immediately in the constructor, otherwise not until
32 // InitIfNecessary() is invoked.
33 // Setup can be initialized in two distinct ways:
34 // . headless: this is determined by the command line, but can be forced by way
36 // . with a ui: this is done via InitIfNecessary().
39 explicit Setup(mojo::ApplicationImpl
* app
);
42 // Use to explicitly create headless regardless of command line switches.
43 // This must be invoked before InitIfNecessary().
46 // Inits with the specified screen size and device pixel ratio.
47 // NOTE: we wait to complete setup until the device pixel ratio is available
48 // as ResourceBundle uses the device pixel ratio during initialization.
49 void InitIfNecessary(const gfx::Size
& screen_size_in_pixels
,
50 float device_pixel_ratio
);
52 mojo::ApplicationImpl
* app() const { return app_
; }
53 bool is_headless() const { return is_headless_
; }
54 bool did_init() const { return did_init_
; }
56 const gfx::Size
& screen_size_in_pixels() const {
57 return screen_size_in_pixels_
;
60 float device_pixel_ratio() const { return device_pixel_ratio_
; }
62 scoped_refptr
<base::MessageLoopProxy
> compositor_thread() {
63 return compositor_thread_
.message_loop_proxy();
66 WebMediaPlayerFactory
* web_media_player_factory() {
67 return web_media_player_factory_
.get();
71 mojo::ApplicationImpl
* app_
;
73 resource_provider::ResourceLoader resource_loader_
;
77 // True once we've completed init.
80 float device_pixel_ratio_
;
82 gfx::Size screen_size_in_pixels_
;
84 scoped_ptr
<UISetup
> ui_setup_
;
86 // Skia requires that we have one of these. Unlike the one used in chrome,
87 // this doesn't use purgable shared memory. Instead, it tries to free the
88 // oldest unlocked chunks on allocation.
90 // TODO(erg): In the long run, delete this allocator and get the real shared
91 // memory based purging allocator working here.
92 DiscardableMemoryAllocator discardable_memory_allocator_
;
94 scoped_ptr
<scheduler::RendererScheduler
> renderer_scheduler_
;
95 scoped_ptr
<BlinkPlatformImpl
> blink_platform_
;
96 base::Thread compositor_thread_
;
97 scoped_ptr
<WebMediaPlayerFactory
> web_media_player_factory_
;
99 DISALLOW_COPY_AND_ASSIGN(Setup
);
102 } // namespace html_viewer
104 #endif // COMPONENTS_HTML_VIEWER_SETUP_H_