1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "xfa/fwl/cfwl_comboboxproxy.h"
8
9 #include <memory>
10 #include <utility>
11
12 #include "xfa/fwl/cfwl_app.h"
13 #include "xfa/fwl/cfwl_combobox.h"
14 #include "xfa/fwl/cfwl_messagekillfocus.h"
15 #include "xfa/fwl/cfwl_messagemouse.h"
16 #include "xfa/fwl/cfwl_notedriver.h"
17
CFWL_ComboBoxProxy(CFWL_ComboBox * pComboBox,const CFWL_App * app,std::unique_ptr<CFWL_WidgetProperties> properties,CFWL_Widget * pOuter)18 CFWL_ComboBoxProxy::CFWL_ComboBoxProxy(
19 CFWL_ComboBox* pComboBox,
20 const CFWL_App* app,
21 std::unique_ptr<CFWL_WidgetProperties> properties,
22 CFWL_Widget* pOuter)
23 : CFWL_FormProxy(app, std::move(properties), pOuter),
24 m_bLButtonDown(false),
25 m_bLButtonUpSelf(false),
26 m_pComboBox(pComboBox) {}
27
~CFWL_ComboBoxProxy()28 CFWL_ComboBoxProxy::~CFWL_ComboBoxProxy() {}
29
OnProcessMessage(CFWL_Message * pMessage)30 void CFWL_ComboBoxProxy::OnProcessMessage(CFWL_Message* pMessage) {
31 if (!pMessage)
32 return;
33
34 switch (pMessage->GetType()) {
35 case CFWL_Message::Type::Mouse: {
36 CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
37 switch (pMsg->m_dwCmd) {
38 case FWL_MouseCommand::LeftButtonDown:
39 OnLButtonDown(pMsg);
40 break;
41 case FWL_MouseCommand::LeftButtonUp:
42 OnLButtonUp(pMsg);
43 break;
44 default:
45 break;
46 }
47 break;
48 }
49 case CFWL_Message::Type::KillFocus:
50 OnFocusChanged(pMessage, false);
51 break;
52 case CFWL_Message::Type::SetFocus:
53 OnFocusChanged(pMessage, true);
54 break;
55 default:
56 break;
57 }
58 CFWL_Widget::OnProcessMessage(pMessage);
59 }
60
OnDrawWidget(CFX_Graphics * pGraphics,const CFX_Matrix * pMatrix)61 void CFWL_ComboBoxProxy::OnDrawWidget(CFX_Graphics* pGraphics,
62 const CFX_Matrix* pMatrix) {
63 m_pComboBox->DrawStretchHandler(pGraphics, pMatrix);
64 }
65
OnLButtonDown(CFWL_Message * pMessage)66 void CFWL_ComboBoxProxy::OnLButtonDown(CFWL_Message* pMessage) {
67 const CFWL_App* pApp = GetOwnerApp();
68 if (!pApp)
69 return;
70
71 CFWL_NoteDriver* pDriver =
72 static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
73 CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
74 if (CFX_RectF(0, 0, GetWidgetRect().Size()).Contains(pMsg->m_pos)) {
75 m_bLButtonDown = true;
76 pDriver->SetGrab(this, true);
77 } else {
78 m_bLButtonDown = false;
79 pDriver->SetGrab(this, false);
80 m_pComboBox->ShowDropList(false);
81 }
82 }
83
OnLButtonUp(CFWL_Message * pMessage)84 void CFWL_ComboBoxProxy::OnLButtonUp(CFWL_Message* pMessage) {
85 m_bLButtonDown = false;
86 const CFWL_App* pApp = GetOwnerApp();
87 if (!pApp)
88 return;
89
90 CFWL_NoteDriver* pDriver =
91 static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
92 pDriver->SetGrab(this, false);
93 if (!m_bLButtonUpSelf) {
94 m_bLButtonUpSelf = true;
95 return;
96 }
97
98 CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
99 if (!CFX_RectF(0, 0, GetWidgetRect().Size()).Contains(pMsg->m_pos) &&
100 m_pComboBox->IsDropListVisible()) {
101 m_pComboBox->ShowDropList(false);
102 }
103 }
104
OnFocusChanged(CFWL_Message * pMessage,bool bSet)105 void CFWL_ComboBoxProxy::OnFocusChanged(CFWL_Message* pMessage, bool bSet) {
106 if (bSet)
107 return;
108
109 CFWL_MessageKillFocus* pMsg = static_cast<CFWL_MessageKillFocus*>(pMessage);
110 if (!pMsg->m_pSetFocus)
111 m_pComboBox->ShowDropList(false);
112 }
113