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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
|
// 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.
#include "base/basictypes.h"
#include "base/bind.h"
#include "mojo/examples/keyboard/keyboard.mojom.h"
#include "mojo/examples/window_manager/debug_panel.h"
#include "mojo/examples/window_manager/window_manager.mojom.h"
#include "mojo/public/cpp/application/application_connection.h"
#include "mojo/public/cpp/application/application_delegate.h"
#include "mojo/public/cpp/application/application_impl.h"
#include "mojo/public/cpp/application/interface_factory_impl.h"
#include "mojo/services/public/cpp/geometry/geometry_type_converters.h"
#include "mojo/services/public/cpp/input_events/input_events_type_converters.h"
#include "mojo/services/public/cpp/view_manager/node.h"
#include "mojo/services/public/cpp/view_manager/node_observer.h"
#include "mojo/services/public/cpp/view_manager/view.h"
#include "mojo/services/public/cpp/view_manager/view_manager.h"
#include "mojo/services/public/cpp/view_manager/view_manager_client_factory.h"
#include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
#include "mojo/services/public/cpp/view_manager/window_manager_delegate.h"
#include "mojo/services/public/interfaces/input_events/input_events.mojom.h"
#include "mojo/services/public/interfaces/launcher/launcher.mojom.h"
#include "mojo/services/public/interfaces/navigation/navigation.mojom.h"
#include "mojo/views/views_init.h"
#include "ui/events/event.h"
#include "ui/events/event_constants.h"
#include "ui/gfx/geometry/size_conversions.h"
#if defined CreateWindow
#undef CreateWindow
#endif
namespace mojo {
namespace examples {
class WindowManager;
namespace {
const int kBorderInset = 25;
const int kControlPanelWidth = 200;
const int kTextfieldHeight = 25;
} // namespace
class WindowManagerConnection : public InterfaceImpl<IWindowManager> {
public:
explicit WindowManagerConnection(WindowManager* window_manager)
: window_manager_(window_manager) {}
virtual ~WindowManagerConnection() {}
private:
// Overridden from IWindowManager:
virtual void CloseWindow(Id node_id) OVERRIDE;
virtual void ShowKeyboard(Id view_id, RectPtr bounds) OVERRIDE;
virtual void HideKeyboard(Id view_id) OVERRIDE;
WindowManager* window_manager_;
DISALLOW_COPY_AND_ASSIGN(WindowManagerConnection);
};
class NavigatorHostImpl : public InterfaceImpl<NavigatorHost> {
public:
explicit NavigatorHostImpl(WindowManager* window_manager)
: window_manager_(window_manager) {}
virtual ~NavigatorHostImpl() {
}
private:
virtual void DidNavigateLocally(uint32 source_node_id,
const mojo::String& url) OVERRIDE;
virtual void RequestNavigate(
uint32 source_node_id,
Target target,
NavigationDetailsPtr nav_details) OVERRIDE;
WindowManager* window_manager_;
DISALLOW_COPY_AND_ASSIGN(NavigatorHostImpl);
};
class KeyboardManager : public KeyboardClient,
public NodeObserver {
public:
KeyboardManager() : view_manager_(NULL), node_(NULL) {
}
virtual ~KeyboardManager() {
if (node_)
node_->parent()->RemoveObserver(this);
}
Node* node() { return node_; }
void Init(ApplicationImpl* application,
ViewManager* view_manager,
Node* parent,
const gfx::Rect& bounds) {
view_manager_ = view_manager;
node_ = Node::Create(view_manager);
node_->SetBounds(bounds);
parent->AddChild(node_);
node_->Embed("mojo:mojo_keyboard");
application->ConnectToService("mojo:mojo_keyboard", &keyboard_service_);
keyboard_service_.set_client(this);
parent->AddObserver(this);
}
void Show(Id view_id, const gfx::Rect& bounds) {
keyboard_service_->SetTarget(view_id);
node_->SetVisible(true);
}
void Hide(Id view_id) {
keyboard_service_->SetTarget(0);
node_->SetVisible(false);
}
private:
// KeyboardClient:
virtual void OnKeyboardEvent(Id view_id,
int32_t code,
int32_t flags) OVERRIDE {
View* view = view_manager_->GetViewById(view_id);
if (!view)
return;
#if defined(OS_WIN)
const bool is_char = code != ui::VKEY_BACK && code != ui::VKEY_RETURN;
#else
const bool is_char = false;
#endif
if (is_char) {
view_manager_->DispatchEvent(
view,
Event::From(ui::KeyEvent(ui::ET_KEY_PRESSED,
static_cast<ui::KeyboardCode>(code),
flags)));
} else {
view_manager_->DispatchEvent(
view,
Event::From(ui::KeyEvent(static_cast<base::char16>(code),
static_cast<ui::KeyboardCode>(code),
flags)));
}
view_manager_->DispatchEvent(
view,
Event::From(ui::KeyEvent(ui::ET_KEY_RELEASED,
static_cast<ui::KeyboardCode>(code),
flags)));
}
// Overridden from NodeObserver:
virtual void OnNodeBoundsChanged(Node* parent,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) OVERRIDE {
gfx::Rect keyboard_bounds(node_->bounds());
keyboard_bounds.set_y(new_bounds.bottom() - keyboard_bounds.height());
keyboard_bounds.set_width(keyboard_bounds.width() +
new_bounds.width() - old_bounds.width());
node_->SetBounds(keyboard_bounds);
}
virtual void OnNodeDestroyed(Node* parent) OVERRIDE {
DCHECK_EQ(parent, node_->parent());
parent->RemoveObserver(this);
node_ = NULL;
}
KeyboardServicePtr keyboard_service_;
ViewManager* view_manager_;
// Node the keyboard is attached to.
Node* node_;
DISALLOW_COPY_AND_ASSIGN(KeyboardManager);
};
class RootLayoutManager : public NodeObserver {
public:
RootLayoutManager(ViewManager* view_manager,
Node* root,
Id content_node_id,
Id launcher_ui_node_id,
Id control_panel_node_id)
: root_(root),
view_manager_(view_manager),
content_node_id_(content_node_id),
launcher_ui_node_id_(launcher_ui_node_id),
control_panel_node_id_(control_panel_node_id) {}
virtual ~RootLayoutManager() {
if (root_)
root_->RemoveObserver(this);
}
private:
// Overridden from NodeObserver:
virtual void OnNodeBoundsChanged(Node* node,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) OVERRIDE {
DCHECK_EQ(node, root_);
Node* content_node = view_manager_->GetNodeById(content_node_id_);
content_node->SetBounds(new_bounds);
// Force the view's bitmap to be recreated
content_node->active_view()->SetColor(SK_ColorBLUE);
int delta_width = new_bounds.width() - old_bounds.width();
int delta_height = new_bounds.height() - old_bounds.height();
Node* launcher_ui_node =
view_manager_->GetNodeById(launcher_ui_node_id_);
gfx::Rect launcher_ui_bounds(launcher_ui_node->bounds());
launcher_ui_bounds.set_width(launcher_ui_bounds.width() + delta_width);
launcher_ui_node->SetBounds(launcher_ui_bounds);
Node* control_panel_node =
view_manager_->GetNodeById(control_panel_node_id_);
gfx::Rect control_panel_bounds(control_panel_node->bounds());
control_panel_bounds.set_x(control_panel_bounds.x() + delta_width);
control_panel_node->SetBounds(control_panel_bounds);
const Node::Children& content_nodes = content_node->children();
Node::Children::const_iterator iter = content_nodes.begin();
for(; iter != content_nodes.end(); ++iter) {
Node* node = *iter;
if (node->id() == control_panel_node->id() ||
node->id() == launcher_ui_node->id())
continue;
gfx::Rect node_bounds(node->bounds());
node_bounds.set_width(node_bounds.width() + delta_width);
node_bounds.set_height(node_bounds.height() + delta_height);
node->SetBounds(node_bounds);
}
}
virtual void OnNodeDestroyed(Node* node) OVERRIDE {
DCHECK_EQ(node, root_);
root_->RemoveObserver(this);
root_ = NULL;
}
Node* root_;
ViewManager* view_manager_;
const Id content_node_id_;
const Id launcher_ui_node_id_;
const Id control_panel_node_id_;
DISALLOW_COPY_AND_ASSIGN(RootLayoutManager);
};
class WindowManager
: public ApplicationDelegate,
public DebugPanel::Delegate,
public ViewManagerDelegate,
public WindowManagerDelegate {
public:
WindowManager()
: window_manager_factory_(this),
navigator_host_factory_(this),
launcher_ui_(NULL),
view_manager_(NULL),
view_manager_client_factory_(this),
app_(NULL) {}
virtual ~WindowManager() {}
void CloseWindow(Id node_id) {
Node* node = view_manager_->GetNodeById(node_id);
DCHECK(node);
std::vector<Node*>::iterator iter =
std::find(windows_.begin(), windows_.end(), node);
DCHECK(iter != windows_.end());
windows_.erase(iter);
node->Destroy();
}
void ShowKeyboard(Id view_id, const gfx::Rect& bounds) {
// TODO: this needs to validate |view_id|. That is, it shouldn't assume
// |view_id| is valid and it also needs to make sure the client that sent
// this really owns |view_id|.
// TODO: honor |bounds|.
if (!keyboard_manager_) {
keyboard_manager_.reset(new KeyboardManager);
Node* parent = view_manager_->GetRoots().back();
int ideal_height = 200;
// TODO(sky): 10 is a bit of a hack here. There is a bug that causes
// white strips to appear when 0 is used. Figure this out!
const gfx::Rect keyboard_bounds(
10, parent->bounds().height() - ideal_height,
parent->bounds().width() - 20, ideal_height);
keyboard_manager_->Init(app_, view_manager_, parent, keyboard_bounds);
}
keyboard_manager_->Show(view_id, bounds);
}
void HideKeyboard(Id view_id) {
// See comment in ShowKeyboard() about validating args.
if (keyboard_manager_)
keyboard_manager_->Hide(view_id);
}
void DidNavigateLocally(uint32 source_node_id, const mojo::String& url) {
LOG(ERROR) << "DidNavigateLocally: source_node_id: " << source_node_id
<< " url: " << url.To<std::string>();
}
// Overridden from DebugPanel::Delegate:
virtual void CloseTopWindow() OVERRIDE {
if (!windows_.empty())
CloseWindow(windows_.back()->id());
}
virtual void RequestNavigate(
uint32 source_node_id,
Target target,
NavigationDetailsPtr nav_details) OVERRIDE {
launcher_->Launch(nav_details->url,
base::Bind(&WindowManager::OnLaunch,
base::Unretained(this),
source_node_id,
target));
}
private:
// Overridden from ApplicationDelegate:
virtual void Initialize(ApplicationImpl* app) MOJO_OVERRIDE {
app_ = app;
app->ConnectToService("mojo:mojo_launcher", &launcher_);
views_init_.reset(new ViewsInit);
}
virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
MOJO_OVERRIDE {
connection->AddService(&window_manager_factory_);
connection->AddService(&navigator_host_factory_);
connection->AddService(&view_manager_client_factory_);
return true;
}
// Overridden from ViewManagerDelegate:
virtual void OnEmbed(ViewManager* view_manager, Node* root) OVERRIDE {
DCHECK(!view_manager_);
view_manager_ = view_manager;
view_manager_->SetWindowManagerDelegate(this);
Node* node = Node::Create(view_manager_);
root->AddChild(node);
node->SetBounds(gfx::Rect(root->bounds().size()));
content_node_id_ = node->id();
View* view = View::Create(view_manager_);
node->SetActiveView(view);
view->SetColor(SK_ColorBLUE);
Id launcher_ui_id = CreateLauncherUI();
Id control_panel_id = CreateControlPanel(node);
root_layout_manager_.reset(
new RootLayoutManager(view_manager, root,
content_node_id_,
launcher_ui_id,
control_panel_id));
root->AddObserver(root_layout_manager_.get());
}
virtual void OnViewManagerDisconnected(ViewManager* view_manager) OVERRIDE {
DCHECK_EQ(view_manager_, view_manager);
view_manager_ = NULL;
base::MessageLoop::current()->Quit();
}
// Overridden from WindowManagerDelegate:
virtual void Embed(const String& url) OVERRIDE {
CreateWindow(url,
NavigationDetailsPtr().Pass(),
ResponseDetailsPtr().Pass());
}
virtual void DispatchEvent(View* target, EventPtr event) OVERRIDE {
// TODO(beng): More sophisticated focus handling than this is required!
if (event->action == EVENT_TYPE_MOUSE_PRESSED &&
!IsDescendantOfKeyboard(target)) {
target->node()->SetFocus();
}
view_manager_->DispatchEvent(target, event.Pass());
}
void OnLaunch(
uint32 source_node_id,
Target requested_target,
const mojo::String& handler_url,
const mojo::String& view_url,
ResponseDetailsPtr response) {
NavigationDetailsPtr nav_details(NavigationDetails::New());
nav_details->url = view_url;
Target target = debug_panel_->navigation_target();
if (target == TARGET_DEFAULT) {
if (requested_target != TARGET_DEFAULT) {
target = requested_target;
} else {
// TODO(aa): Should be TARGET_NEW_NODE if source origin and dest origin
// are different?
target = TARGET_SOURCE_NODE;
}
}
Node* dest_node = NULL;
if (target == TARGET_SOURCE_NODE) {
Node* source_node = view_manager_->GetNodeById(source_node_id);
bool app_initiated = std::find(windows_.begin(), windows_.end(),
source_node) != windows_.end();
if (app_initiated)
dest_node = source_node;
else if (!windows_.empty())
dest_node = windows_.back();
}
if (dest_node)
Embed(dest_node, handler_url, nav_details.Pass(), response.Pass());
else
CreateWindow(handler_url, nav_details.Pass(), response.Pass());
}
// TODO(beng): proper layout manager!!
Id CreateLauncherUI() {
NavigationDetailsPtr nav_details;
ResponseDetailsPtr response;
Node* node = view_manager_->GetNodeById(content_node_id_);
gfx::Rect bounds = node->bounds();
bounds.Inset(kBorderInset, kBorderInset);
bounds.set_height(kTextfieldHeight);
launcher_ui_ = CreateChild(content_node_id_, "mojo:mojo_browser", bounds,
nav_details.Pass(), response.Pass());
return launcher_ui_->id();
}
void CreateWindow(const std::string& handler_url,
NavigationDetailsPtr nav_details,
ResponseDetailsPtr response) {
Node* node = view_manager_->GetNodeById(content_node_id_);
gfx::Rect bounds(kBorderInset,
2 * kBorderInset + kTextfieldHeight,
node->bounds().width() - 3 * kBorderInset -
kControlPanelWidth,
node->bounds().height() -
(3 * kBorderInset + kTextfieldHeight));
if (!windows_.empty()) {
gfx::Point position = windows_.back()->bounds().origin();
position.Offset(35, 35);
bounds.set_origin(position);
}
windows_.push_back(CreateChild(content_node_id_, handler_url, bounds,
nav_details.Pass(), response.Pass()));
}
Node* CreateChild(Id parent_id,
const std::string& url,
const gfx::Rect& bounds,
NavigationDetailsPtr nav_details,
ResponseDetailsPtr response) {
Node* node = view_manager_->GetNodeById(parent_id);
Node* embedded = Node::Create(view_manager_);
node->AddChild(embedded);
embedded->SetBounds(bounds);
Embed(embedded, url, nav_details.Pass(), response.Pass());
embedded->SetFocus();
return embedded;
}
void Embed(Node* node, const std::string& app_url,
NavigationDetailsPtr nav_details,
ResponseDetailsPtr response) {
node->Embed(app_url);
if (nav_details) {
NavigatorPtr navigator;
app_->ConnectToService(app_url, &navigator);
navigator->Navigate(node->id(), nav_details.Pass(), response.Pass());
}
}
bool IsDescendantOfKeyboard(View* target) {
return keyboard_manager_.get() &&
keyboard_manager_->node()->Contains(target->node());
}
Id CreateControlPanel(Node* root) {
Node* node = Node::Create(view_manager_);
View* view = View::Create(view_manager_);
root->AddChild(node);
node->SetActiveView(view);
gfx::Rect bounds(root->bounds().width() - kControlPanelWidth -
kBorderInset,
kBorderInset * 2 + kTextfieldHeight,
kControlPanelWidth,
root->bounds().height() - kBorderInset * 3 -
kTextfieldHeight);
node->SetBounds(bounds);
debug_panel_ = new DebugPanel(this, node);
return node->id();
}
InterfaceFactoryImplWithContext<WindowManagerConnection, WindowManager>
window_manager_factory_;
InterfaceFactoryImplWithContext<NavigatorHostImpl, WindowManager>
navigator_host_factory_;
scoped_ptr<ViewsInit> views_init_;
DebugPanel* debug_panel_;
LauncherPtr launcher_;
Node* launcher_ui_;
std::vector<Node*> windows_;
ViewManager* view_manager_;
ViewManagerClientFactory view_manager_client_factory_;
scoped_ptr<RootLayoutManager> root_layout_manager_;
// Id of the node most content is added to. The keyboard is NOT added here.
Id content_node_id_;
scoped_ptr<KeyboardManager> keyboard_manager_;
ApplicationImpl* app_;
DISALLOW_COPY_AND_ASSIGN(WindowManager);
};
void WindowManagerConnection::CloseWindow(Id node_id) {
window_manager_->CloseWindow(node_id);
}
void WindowManagerConnection::ShowKeyboard(Id view_id, RectPtr bounds) {
window_manager_->ShowKeyboard(view_id, bounds.To<gfx::Rect>());
}
void WindowManagerConnection::HideKeyboard(Id node_id) {
window_manager_->HideKeyboard(node_id);
}
void NavigatorHostImpl::DidNavigateLocally(uint32 source_node_id,
const mojo::String& url) {
window_manager_->DidNavigateLocally(source_node_id, url);
}
void NavigatorHostImpl::RequestNavigate(
uint32 source_node_id,
Target target,
NavigationDetailsPtr nav_details) {
window_manager_->RequestNavigate(source_node_id, target, nav_details.Pass());
}
} // namespace examples
// static
ApplicationDelegate* ApplicationDelegate::Create() {
return new examples::WindowManager;
}
} // namespace mojo
|