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
|
// Copyright (c) 2006-2008 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 "views/controls/combobox/combobox.h"
#include "app/combobox_model.h"
#include "base/keyboard_codes.h"
#include "base/logging.h"
#include "views/controls/combobox/native_combobox_wrapper.h"
#include "views/controls/native/native_view_host.h"
namespace views {
// static
const char Combobox::kViewClassName[] = "views/Combobox";
////////////////////////////////////////////////////////////////////////////////
// Combobox, public:
Combobox::Combobox(ComboboxModel* model)
: native_wrapper_(NULL),
model_(model),
listener_(NULL),
selected_item_(0) {
SetFocusable(true);
}
Combobox::~Combobox() {
}
void Combobox::ModelChanged() {
selected_item_ = std::min(0, model_->GetItemCount());
if (native_wrapper_)
native_wrapper_->UpdateFromModel();
}
void Combobox::SetSelectedItem(int index) {
selected_item_ = index;
if (native_wrapper_)
native_wrapper_->UpdateSelectedItem();
}
void Combobox::SelectionChanged() {
int prev_selected_item = selected_item_;
selected_item_ = native_wrapper_->GetSelectedItem();
if (listener_)
listener_->ItemChanged(this, prev_selected_item, selected_item_);
}
////////////////////////////////////////////////////////////////////////////////
// Combobox, View overrides:
gfx::Size Combobox::GetPreferredSize() {
if (native_wrapper_)
return native_wrapper_->GetPreferredSize();
return gfx::Size();
}
void Combobox::Layout() {
if (native_wrapper_) {
native_wrapper_->GetView()->SetBounds(0, 0, width(), height());
native_wrapper_->GetView()->Layout();
}
}
void Combobox::SetEnabled(bool flag) {
View::SetEnabled(flag);
if (native_wrapper_)
native_wrapper_->UpdateEnabled();
}
// VKEY_ESCAPE should be handled by this view when the drop down list is active.
// In other words, the list should be closed instead of the dialog.
bool Combobox::SkipDefaultKeyEventProcessing(const KeyEvent& e) {
if (e.GetKeyCode() != base::VKEY_ESCAPE ||
e.IsShiftDown() || e.IsControlDown() || e.IsAltDown()) {
return false;
}
return native_wrapper_ && native_wrapper_->IsDropdownOpen();
}
void Combobox::PaintFocusBorder(gfx::Canvas* canvas) {
if (NativeViewHost::kRenderNativeControlFocus)
View::PaintFocusBorder(canvas);
}
bool Combobox::GetAccessibleName(std::wstring* name) {
DCHECK(name);
if (!accessible_name_.empty()) {
*name = accessible_name_;
return true;
}
return false;
}
bool Combobox::GetAccessibleRole(AccessibilityTypes::Role* role) {
DCHECK(role);
*role = AccessibilityTypes::ROLE_COMBOBOX;
return true;
}
void Combobox::SetAccessibleName(const std::wstring& name) {
accessible_name_.assign(name);
}
void Combobox::Focus() {
// Forward the focus to the wrapper.
if (native_wrapper_)
native_wrapper_->SetFocus();
else
View::Focus(); // Will focus the RootView window (so we still get
// keyboard messages).
}
void Combobox::ViewHierarchyChanged(bool is_add, View* parent,
View* child) {
if (is_add && !native_wrapper_ && GetWidget()) {
native_wrapper_ = NativeComboboxWrapper::CreateWrapper(this);
AddChildView(native_wrapper_->GetView());
}
}
std::string Combobox::GetClassName() const {
return kViewClassName;
}
} // namespace views
|
