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
|
// 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 "content/browser/renderer_host/cursor_manager.h"
#include "build/build_config.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "content/common/cursors/webcursor.h"
#include "content/public/common/cursor_info.h"
#include "content/public/test/mock_render_process_host.h"
#include "content/public/test/test_browser_context.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "content/test/mock_render_widget_host_delegate.h"
#include "content/test/mock_widget_impl.h"
#include "content/test/test_render_view_host.h"
#include "testing/gtest/include/gtest/gtest.h"
// CursorManager is only instantiated on Aura and Mac.
#if defined(USE_AURA) || defined(OS_MACOSX)
namespace content {
namespace {
class MockRenderWidgetHostViewForCursors : public TestRenderWidgetHostView {
public:
MockRenderWidgetHostViewForCursors(RenderWidgetHost* host, bool top_view)
: TestRenderWidgetHostView(host) {
if (top_view)
cursor_manager_.reset(new CursorManager(this));
}
void DisplayCursor(const WebCursor& cursor) override {
current_cursor_ = cursor;
}
CursorManager* GetCursorManager() override { return cursor_manager_.get(); }
WebCursor cursor() { return current_cursor_; }
private:
WebCursor current_cursor_;
std::unique_ptr<CursorManager> cursor_manager_;
};
class MockRenderWidgetHost : public RenderWidgetHostImpl {
public:
static MockRenderWidgetHost* Create(RenderWidgetHostDelegate* delegate,
RenderProcessHost* process,
int32_t routing_id) {
mojom::WidgetPtr widget;
std::unique_ptr<MockWidgetImpl> widget_impl =
std::make_unique<MockWidgetImpl>(mojo::MakeRequest(&widget));
return new MockRenderWidgetHost(delegate, process, routing_id,
std::move(widget_impl), std::move(widget));
}
private:
MockRenderWidgetHost(RenderWidgetHostDelegate* delegate,
RenderProcessHost* process,
int routing_id,
std::unique_ptr<MockWidgetImpl> widget_impl,
mojom::WidgetPtr widget)
: RenderWidgetHostImpl(delegate,
process,
routing_id,
std::move(widget),
false),
widget_impl_(std::move(widget_impl)) {}
std::unique_ptr<MockWidgetImpl> widget_impl_;
DISALLOW_COPY_AND_ASSIGN(MockRenderWidgetHost);
};
class CursorManagerTest : public testing::Test {
public:
CursorManagerTest() {}
void SetUp() override {
browser_context_.reset(new TestBrowserContext);
process_host_.reset(new MockRenderProcessHost(browser_context_.get()));
widget_host_.reset(MakeNewWidgetHost());
top_view_ =
new MockRenderWidgetHostViewForCursors(widget_host_.get(), true);
}
RenderWidgetHostImpl* MakeNewWidgetHost() {
int32_t routing_id = process_host_->GetNextRoutingID();
return MockRenderWidgetHost::Create(&delegate_, process_host_.get(),
routing_id);
}
void TearDown() override {
if (top_view_)
delete top_view_;
widget_host_.reset();
process_host_.reset();
}
protected:
TestBrowserThreadBundle thread_bundle_;
std::unique_ptr<BrowserContext> browser_context_;
std::unique_ptr<MockRenderProcessHost> process_host_;
std::unique_ptr<RenderWidgetHostImpl> widget_host_;
// Tests should set this to nullptr if they've already triggered its
// destruction.
MockRenderWidgetHostViewForCursors* top_view_;
MockRenderWidgetHostDelegate delegate_;
private:
DISALLOW_COPY_AND_ASSIGN(CursorManagerTest);
};
} // namespace
// Verify basic CursorManager functionality when no OOPIFs are present.
TEST_F(CursorManagerTest, CursorOnSingleView) {
// Simulate mouse over the top-level frame without an UpdateCursor message.
top_view_->GetCursorManager()->UpdateViewUnderCursor(top_view_);
// The view should be using the default cursor.
EXPECT_TRUE(top_view_->cursor().IsEqual(WebCursor()));
CursorInfo cursor_info(blink::WebCursorInfo::kTypeHand);
WebCursor cursor_hand;
cursor_hand.InitFromCursorInfo(cursor_info);
// Update the view with a non-default cursor.
top_view_->GetCursorManager()->UpdateCursor(top_view_, cursor_hand);
// Verify the RenderWidgetHostView now uses the correct cursor.
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_hand));
}
// Verify cursor interactions between a parent frame and an out-of-process
// child frame.
TEST_F(CursorManagerTest, CursorOverChildView) {
std::unique_ptr<RenderWidgetHostImpl> widget_host(MakeNewWidgetHost());
std::unique_ptr<MockRenderWidgetHostViewForCursors> child_view(
new MockRenderWidgetHostViewForCursors(widget_host.get(), false));
CursorInfo cursor_info(blink::WebCursorInfo::kTypeHand);
WebCursor cursor_hand;
cursor_hand.InitFromCursorInfo(cursor_info);
// Set the child frame's cursor to a hand. This should not propagate to the
// top-level view without the mouse moving over the child frame.
top_view_->GetCursorManager()->UpdateCursor(child_view.get(), cursor_hand);
EXPECT_FALSE(top_view_->cursor().IsEqual(cursor_hand));
// Now moving the mouse over the child frame should update the overall cursor.
top_view_->GetCursorManager()->UpdateViewUnderCursor(child_view.get());
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_hand));
// Destruction of the child view should restore the parent frame's cursor.
top_view_->GetCursorManager()->ViewBeingDestroyed(child_view.get());
EXPECT_FALSE(top_view_->cursor().IsEqual(cursor_hand));
}
// Verify interactions between two independent OOPIFs, including interleaving
// cursor updates and mouse movements. This simulates potential race
// conditions between cursor updates.
TEST_F(CursorManagerTest, CursorOverMultipleChildViews) {
std::unique_ptr<RenderWidgetHostImpl> widget_host1(MakeNewWidgetHost());
std::unique_ptr<MockRenderWidgetHostViewForCursors> child_view1(
new MockRenderWidgetHostViewForCursors(widget_host1.get(), false));
std::unique_ptr<RenderWidgetHostImpl> widget_host2(MakeNewWidgetHost());
std::unique_ptr<MockRenderWidgetHostViewForCursors> child_view2(
new MockRenderWidgetHostViewForCursors(widget_host2.get(), false));
CursorInfo cursor_info_hand(blink::WebCursorInfo::kTypeHand);
WebCursor cursor_hand;
cursor_hand.InitFromCursorInfo(cursor_info_hand);
CursorInfo cursor_info_cross(blink::WebCursorInfo::kTypeCross);
WebCursor cursor_cross;
cursor_cross.InitFromCursorInfo(cursor_info_cross);
CursorInfo cursor_info_pointer(blink::WebCursorInfo::kTypePointer);
WebCursor cursor_pointer;
cursor_pointer.InitFromCursorInfo(cursor_info_pointer);
// Initialize each View to a different cursor.
top_view_->GetCursorManager()->UpdateCursor(top_view_, cursor_hand);
top_view_->GetCursorManager()->UpdateCursor(child_view1.get(), cursor_cross);
top_view_->GetCursorManager()->UpdateCursor(child_view2.get(),
cursor_pointer);
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_hand));
// Simulate moving the mouse between child views and receiving cursor updates.
top_view_->GetCursorManager()->UpdateViewUnderCursor(child_view1.get());
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_cross));
top_view_->GetCursorManager()->UpdateViewUnderCursor(child_view2.get());
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_pointer));
// Simulate cursor updates to both child views and the parent view. An
// update to child_view1 or the parent view should not change the current
// cursor because the mouse is over child_view2.
top_view_->GetCursorManager()->UpdateCursor(child_view1.get(), cursor_hand);
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_pointer));
top_view_->GetCursorManager()->UpdateCursor(child_view2.get(), cursor_cross);
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_cross));
top_view_->GetCursorManager()->UpdateCursor(top_view_, cursor_hand);
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_cross));
// Similarly, destroying child_view1 should have no effect on the cursor,
// but destroying child_view2 should change it.
top_view_->GetCursorManager()->ViewBeingDestroyed(child_view1.get());
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_cross));
top_view_->GetCursorManager()->ViewBeingDestroyed(child_view2.get());
EXPECT_TRUE(top_view_->cursor().IsEqual(cursor_hand));
}
} // namespace content
#endif // defined(USE_AURA) || defined(OS_MACOSX)
|
