1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
// Copyright 2015 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 "chrome/browser/ui/webui/media_router/media_router_ui.h"
#include <string>
#include "chrome/browser/media/router/issues_observer.h"
#include "chrome/browser/media/router/media_router.h"
#include "chrome/browser/media/router/media_router_mojo_impl.h"
#include "chrome/browser/media/router/media_router_mojo_impl_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/media_router/media_router_localized_strings_provider.h"
#include "chrome/browser/ui/webui/media_router/media_router_resources_provider.h"
#include "chrome/browser/ui/webui/media_router/media_router_webui_message_handler.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "content/public/browser/web_ui_data_source.h"
#include "ui/web_dialogs/web_dialog_delegate.h"
namespace media_router {
// This class calls to refresh the UI when the highest priority issue is
// updated.
class MediaRouterUI::UIIssuesObserver : public IssuesObserver {
public:
explicit UIIssuesObserver(MediaRouterUI* ui) : ui_(ui) { DCHECK(ui); }
~UIIssuesObserver() override {}
// IssuesObserver implementation.
void OnIssueUpdated(const Issue* issue) override { ui_->SetIssue(issue); }
private:
// Reference back to the owning MediaRouterUI instance.
MediaRouterUI* ui_;
DISALLOW_COPY_AND_ASSIGN(UIIssuesObserver);
};
class MediaRouterUI::UIMediaRoutesObserver : public MediaRoutesObserver {
public:
UIMediaRoutesObserver(MediaRouter* router, MediaRouterUI* ui)
: MediaRoutesObserver(router), ui_(ui) {
DCHECK(ui_);
}
void OnRoutesUpdated(const std::vector<MediaRoute>& routes) override {
ui_->OnRoutesUpdated(routes);
}
private:
// Reference back to the owning MediaRouterUI instance.
MediaRouterUI* ui_;
DISALLOW_COPY_AND_ASSIGN(UIMediaRoutesObserver);
};
MediaRouterUI::MediaRouterUI(content::WebUI* web_ui)
: ConstrainedWebDialogUI(web_ui),
handler_(new MediaRouterWebUIMessageHandler()),
ui_initialized_(false),
has_pending_route_request_(false),
router_(nullptr),
weak_factory_(this) {
// Create a WebUIDataSource containing the chrome://media-router page's
// content.
scoped_ptr<content::WebUIDataSource> html_source(
content::WebUIDataSource::Create(chrome::kChromeUIMediaRouterHost));
AddLocalizedStrings(html_source.get());
AddMediaRouterUIResources(html_source.get());
// Ownership of |html_source| is transferred to the BrowserContext.
content::WebUIDataSource::Add(Profile::FromWebUI(web_ui),
html_source.release());
// Ownership of |handler_| is transferred to |web_ui|.
web_ui->AddMessageHandler(handler_);
content::WebContents* wc = web_ui->GetWebContents();
DCHECK(wc);
router_ = MediaRouterMojoImplFactory::GetApiForBrowserContext(
wc->GetBrowserContext());
DCHECK(router_);
// Register for Issue and MediaRoute updates.
issues_observer_.reset(new UIIssuesObserver(this));
routes_observer_.reset(new UIMediaRoutesObserver(router_, this));
}
MediaRouterUI::~MediaRouterUI() {
if (query_result_manager_.get())
query_result_manager_->RemoveObserver(this);
}
void MediaRouterUI::Close() {
ConstrainedWebDialogDelegate* delegate = GetConstrainedDelegate();
if (delegate) {
delegate->GetWebDialogDelegate()->OnDialogClosed(std::string());
delegate->OnDialogCloseFromWebUI();
}
}
void MediaRouterUI::UIInitialized() {
ui_initialized_ = true;
}
bool MediaRouterUI::CreateRoute(const MediaSinkId& sink_id) {
return DoCreateRoute(sink_id, GetPreferredCastMode(cast_modes_));
}
bool MediaRouterUI::CreateRouteWithCastModeOverride(
const MediaSinkId& sink_id,
MediaCastMode cast_mode_override) {
// NOTE: It's actually not an override if
// |cast_mode_override| == |GetPreferredCastMode(cast_modes_)|.
return DoCreateRoute(sink_id, cast_mode_override);
}
void MediaRouterUI::CloseRoute(const MediaRouteId& route_id) {
router_->CloseRoute(route_id);
}
void MediaRouterUI::ClearIssue(const std::string& issue_id) {
router_->ClearIssue(issue_id);
}
std::string MediaRouterUI::GetInitialHeaderText() const {
if (cast_modes_.empty())
return std::string();
// TODO(imcheng): Pass in source_host_ once DEFAULT mode is upstreamed.
return MediaCastModeToTitle(GetPreferredCastMode(cast_modes_), std::string());
}
void MediaRouterUI::OnResultsUpdated(
const std::vector<MediaSinkWithCastModes>& sinks) {
sinks_ = sinks;
if (ui_initialized_)
handler_->UpdateSinks(sinks_);
}
void MediaRouterUI::SetIssue(const Issue* issue) {
if (ui_initialized_)
handler_->UpdateIssue(issue);
}
void MediaRouterUI::OnRoutesUpdated(const std::vector<MediaRoute>& routes) {
routes_ = routes;
if (ui_initialized_)
handler_->UpdateRoutes(routes_);
}
void MediaRouterUI::OnRouteResponseReceived(scoped_ptr<MediaRoute> route,
const std::string& error) {
DVLOG(1) << "OnRouteResponseReceived";
// TODO(imcheng): Display error in UI. (crbug.com/490372)
if (!route)
LOG(ERROR) << "MediaRouteResponse returned error: " << error;
else
handler_->AddRoute(*route);
has_pending_route_request_ = false;
}
bool MediaRouterUI::DoCreateRoute(const MediaSinkId& sink_id,
MediaCastMode cast_mode) {
DCHECK(query_result_manager_.get());
// Note that there is a rarely-encountered bug, where the MediaCastMode to
// MediaSource mapping could have been updated, between when the user
// clicked on the UI to start a create route request,
// and when this function is called.
// However, since the user does not have visibility into the MediaSource, and
// that it occurs very rarely in practice, we leave it as-is for now.
MediaSource source = query_result_manager_->GetSourceForCastMode(cast_mode);
if (source.Empty()) {
LOG(ERROR) << "No corresponding MediaSource for cast mode " << cast_mode;
return false;
}
has_pending_route_request_ = true;
router_->CreateRoute(source.id(), sink_id,
base::Bind(&MediaRouterUI::OnRouteResponseReceived,
weak_factory_.GetWeakPtr()));
return true;
}
} // namespace media_router
|
