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Issue 6703003: Move a bunch of html5 renderer code to content. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 9 years, 9 months ago
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1 // Copyright (c) 2010 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.
4
5 #include "chrome/renderer/device_orientation_dispatcher.h"
6
7 #include "chrome/common/render_messages.h"
8 #include "chrome/common/render_messages_params.h"
9 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDeviceOrientation. h"
10 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDeviceOrientationC ontroller.h"
11
12 DeviceOrientationDispatcher::DeviceOrientationDispatcher(
13 RenderView* render_view)
14 : RenderViewObserver(render_view),
15 controller_(NULL),
16 started_(false) {
17 }
18
19 DeviceOrientationDispatcher::~DeviceOrientationDispatcher() {
20 if (started_)
21 stopUpdating();
22 }
23
24 bool DeviceOrientationDispatcher::OnMessageReceived(const IPC::Message& msg) {
25 bool handled = true;
26 IPC_BEGIN_MESSAGE_MAP(DeviceOrientationDispatcher, msg)
27 IPC_MESSAGE_HANDLER(ViewMsg_DeviceOrientationUpdated,
28 OnDeviceOrientationUpdated)
29 IPC_MESSAGE_UNHANDLED(handled = false)
30 IPC_END_MESSAGE_MAP()
31 return handled;
32 }
33
34 void DeviceOrientationDispatcher::setController(
35 WebKit::WebDeviceOrientationController* controller) {
36 controller_.reset(controller);
37 }
38
39 void DeviceOrientationDispatcher::startUpdating() {
40 Send(new ViewHostMsg_DeviceOrientation_StartUpdating(routing_id()));
41 started_ = true;
42 }
43
44 void DeviceOrientationDispatcher::stopUpdating() {
45 Send(new ViewHostMsg_DeviceOrientation_StopUpdating(routing_id()));
46 started_ = false;
47 }
48
49 WebKit::WebDeviceOrientation DeviceOrientationDispatcher::lastOrientation()
50 const {
51 if (!last_orientation_.get())
52 return WebKit::WebDeviceOrientation::nullOrientation();
53
54 return *last_orientation_;
55 }
56
57 namespace {
58 bool OrientationsEqual(const ViewMsg_DeviceOrientationUpdated_Params& a,
59 WebKit::WebDeviceOrientation* b) {
60 if (a.can_provide_alpha != b->canProvideAlpha())
61 return false;
62 if (a.can_provide_alpha && a.alpha != b->alpha())
63 return false;
64 if (a.can_provide_beta != b->canProvideBeta())
65 return false;
66 if (a.can_provide_beta && a.beta != b->beta())
67 return false;
68 if (a.can_provide_gamma != b->canProvideGamma())
69 return false;
70 if (a.can_provide_gamma && a.gamma != b->gamma())
71 return false;
72
73 return true;
74 }
75 } // namespace
76
77 void DeviceOrientationDispatcher::OnDeviceOrientationUpdated(
78 const ViewMsg_DeviceOrientationUpdated_Params& p) {
79
80 if (last_orientation_.get() && OrientationsEqual(p, last_orientation_.get()))
81 return;
82
83 last_orientation_.reset(new WebKit::WebDeviceOrientation(p.can_provide_alpha,
84 p.alpha,
85 p.can_provide_beta,
86 p.beta,
87 p.can_provide_gamma,
88 p.gamma));
89
90 controller_->didChangeDeviceOrientation(*last_orientation_);
91 }
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