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
|
// 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 "base/logging.h"
#include "views/controls/combobox/native_combobox_wrapper.h"
namespace views {
// static
const char Combobox::kViewClassName[] = "views/Combobox";
////////////////////////////////////////////////////////////////////////////////
// Combobox, public:
Combobox::Combobox(Model* 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(this));
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();
}
// VK_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::OverrideAccelerator(const Accelerator& accelerator) {
#if defined(OS_WIN)
if (accelerator != Accelerator(VK_ESCAPE, false, false, false))
return false;
#else
NOTIMPLEMENTED();
// TODO(port): figure out VK_keys
#endif
return native_wrapper_ && native_wrapper_->IsDropdownOpen();
}
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);
native_wrapper_->UpdateFromModel();
native_wrapper_->UpdateEnabled();
AddChildView(native_wrapper_->GetView());
}
}
std::string Combobox::GetClassName() const {
return kViewClassName;
}
} // namespace views
|
