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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/core/cfwl_combolist.h" | |
8 | |
9 #include <memory> | |
10 #include <utility> | |
11 | |
12 #include "third_party/base/ptr_util.h" | |
13 #include "xfa/fwl/core/cfwl_combobox.h" | |
14 #include "xfa/fwl/core/cfwl_comboedit.h" | |
15 #include "xfa/fwl/core/cfwl_listbox.h" | |
16 #include "xfa/fwl/core/cfwl_msgkey.h" | |
17 #include "xfa/fwl/core/cfwl_msgkillfocus.h" | |
18 #include "xfa/fwl/core/cfwl_msgmouse.h" | |
19 | |
20 CFWL_ComboList::CFWL_ComboList( | |
21 const CFWL_App* app, | |
22 std::unique_ptr<CFWL_WidgetProperties> properties, | |
23 CFWL_Widget* pOuter) | |
24 : CFWL_ListBox(app, std::move(properties), pOuter), m_bNotifyOwner(true) { | |
25 ASSERT(pOuter); | |
26 } | |
27 | |
28 int32_t CFWL_ComboList::MatchItem(const CFX_WideString& wsMatch) { | |
29 if (wsMatch.IsEmpty()) | |
30 return -1; | |
31 | |
32 int32_t iCount = CountItems(this); | |
33 for (int32_t i = 0; i < iCount; i++) { | |
34 CFWL_ListItem* hItem = GetItem(this, i); | |
35 CFX_WideString wsText = GetItemText(this, hItem); | |
36 FX_STRSIZE pos = wsText.Find(wsMatch.c_str()); | |
37 if (!pos) | |
38 return i; | |
39 } | |
40 return -1; | |
41 } | |
42 | |
43 void CFWL_ComboList::ChangeSelected(int32_t iSel) { | |
44 CFWL_ListItem* hItem = GetItem(this, iSel); | |
45 CFX_RectF rtInvalidate; | |
46 rtInvalidate.Reset(); | |
47 CFWL_ListItem* hOld = GetSelItem(0); | |
48 int32_t iOld = GetItemIndex(this, hOld); | |
49 if (iOld == iSel) | |
50 return; | |
51 if (iOld > -1) { | |
52 CFWL_ListItem* hItem = GetItem(this, iOld); | |
53 GetItemRect(this, hItem, rtInvalidate); | |
54 SetSelItem(hOld, false); | |
55 } | |
56 if (hItem) { | |
57 CFX_RectF rect; | |
58 CFWL_ListItem* hItem = GetItem(this, iSel); | |
59 GetItemRect(this, hItem, rect); | |
60 rtInvalidate.Union(rect); | |
61 CFWL_ListItem* hSel = GetItem(this, iSel); | |
62 SetSelItem(hSel, true); | |
63 } | |
64 if (!rtInvalidate.IsEmpty()) | |
65 Repaint(&rtInvalidate); | |
66 } | |
67 | |
68 void CFWL_ComboList::ClientToOuter(FX_FLOAT& fx, FX_FLOAT& fy) { | |
69 fx += m_pProperties->m_rtWidget.left, fy += m_pProperties->m_rtWidget.top; | |
70 CFWL_Widget* pOwner = GetOwner(); | |
71 if (!pOwner) | |
72 return; | |
73 pOwner->TransformTo(m_pOuter, fx, fy); | |
74 } | |
75 | |
76 void CFWL_ComboList::OnProcessMessage(CFWL_Message* pMessage) { | |
77 if (!pMessage) | |
78 return; | |
79 | |
80 CFWL_Message::Type type = pMessage->GetType(); | |
81 bool backDefault = true; | |
82 if (type == CFWL_Message::Type::SetFocus || | |
83 type == CFWL_Message::Type::KillFocus) { | |
84 OnDropListFocusChanged(pMessage, type == CFWL_Message::Type::SetFocus); | |
85 } else if (type == CFWL_Message::Type::Mouse) { | |
86 CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage); | |
87 CFWL_ScrollBar* vertSB = GetVertScrollBar(); | |
88 if (IsShowScrollBar(true) && vertSB) { | |
89 CFX_RectF rect = vertSB->GetWidgetRect(); | |
90 if (rect.Contains(pMsg->m_fx, pMsg->m_fy)) { | |
91 pMsg->m_fx -= rect.left; | |
92 pMsg->m_fy -= rect.top; | |
93 vertSB->GetDelegate()->OnProcessMessage(pMsg); | |
94 return; | |
95 } | |
96 } | |
97 switch (pMsg->m_dwCmd) { | |
98 case FWL_MouseCommand::Move: { | |
99 backDefault = false; | |
100 OnDropListMouseMove(pMsg); | |
101 break; | |
102 } | |
103 case FWL_MouseCommand::LeftButtonDown: { | |
104 backDefault = false; | |
105 OnDropListLButtonDown(pMsg); | |
106 break; | |
107 } | |
108 case FWL_MouseCommand::LeftButtonUp: { | |
109 backDefault = false; | |
110 OnDropListLButtonUp(pMsg); | |
111 break; | |
112 } | |
113 default: | |
114 break; | |
115 } | |
116 } else if (type == CFWL_Message::Type::Key) { | |
117 backDefault = !OnDropListKey(static_cast<CFWL_MsgKey*>(pMessage)); | |
118 } | |
119 if (backDefault) | |
120 CFWL_ListBox::OnProcessMessage(pMessage); | |
121 } | |
122 | |
123 void CFWL_ComboList::OnDropListFocusChanged(CFWL_Message* pMsg, bool bSet) { | |
124 if (bSet) | |
125 return; | |
126 | |
127 CFWL_MsgKillFocus* pKill = static_cast<CFWL_MsgKillFocus*>(pMsg); | |
128 CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter); | |
129 if (pKill->m_pSetFocus == m_pOuter || | |
130 pKill->m_pSetFocus == pOuter->GetComboEdit()) { | |
131 pOuter->ShowDropList(false); | |
132 } | |
133 } | |
134 | |
135 void CFWL_ComboList::OnDropListMouseMove(CFWL_MsgMouse* pMsg) { | |
136 if (GetRTClient().Contains(pMsg->m_fx, pMsg->m_fy)) { | |
137 if (m_bNotifyOwner) | |
138 m_bNotifyOwner = false; | |
139 | |
140 CFWL_ScrollBar* vertSB = GetVertScrollBar(); | |
141 if (IsShowScrollBar(true) && vertSB) { | |
142 CFX_RectF rect = vertSB->GetWidgetRect(); | |
143 if (rect.Contains(pMsg->m_fx, pMsg->m_fy)) | |
144 return; | |
145 } | |
146 | |
147 CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); | |
148 if (!hItem) | |
149 return; | |
150 | |
151 ChangeSelected(GetItemIndex(this, hItem)); | |
152 } else if (m_bNotifyOwner) { | |
153 ClientToOuter(pMsg->m_fx, pMsg->m_fy); | |
154 CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter); | |
155 pOuter->GetDelegate()->OnProcessMessage(pMsg); | |
156 } | |
157 } | |
158 | |
159 void CFWL_ComboList::OnDropListLButtonDown(CFWL_MsgMouse* pMsg) { | |
160 if (GetRTClient().Contains(pMsg->m_fx, pMsg->m_fy)) | |
161 return; | |
162 | |
163 CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter); | |
164 pOuter->ShowDropList(false); | |
165 } | |
166 | |
167 void CFWL_ComboList::OnDropListLButtonUp(CFWL_MsgMouse* pMsg) { | |
168 CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter); | |
169 if (m_bNotifyOwner) { | |
170 ClientToOuter(pMsg->m_fx, pMsg->m_fy); | |
171 pOuter->GetDelegate()->OnProcessMessage(pMsg); | |
172 return; | |
173 } | |
174 | |
175 CFWL_ScrollBar* vertSB = GetVertScrollBar(); | |
176 if (IsShowScrollBar(true) && vertSB) { | |
177 CFX_RectF rect = vertSB->GetWidgetRect(); | |
178 if (rect.Contains(pMsg->m_fx, pMsg->m_fy)) | |
179 return; | |
180 } | |
181 pOuter->ShowDropList(false); | |
182 | |
183 CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); | |
184 if (hItem) | |
185 pOuter->ProcessSelChanged(true); | |
186 } | |
187 | |
188 bool CFWL_ComboList::OnDropListKey(CFWL_MsgKey* pKey) { | |
189 CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter); | |
190 bool bPropagate = false; | |
191 if (pKey->m_dwCmd == FWL_KeyCommand::KeyDown) { | |
192 uint32_t dwKeyCode = pKey->m_dwKeyCode; | |
193 switch (dwKeyCode) { | |
194 case FWL_VKEY_Return: | |
195 case FWL_VKEY_Escape: { | |
196 pOuter->ShowDropList(false); | |
197 return true; | |
198 } | |
199 case FWL_VKEY_Up: | |
200 case FWL_VKEY_Down: { | |
201 OnDropListKeyDown(pKey); | |
202 pOuter->ProcessSelChanged(false); | |
203 return true; | |
204 } | |
205 default: { | |
206 bPropagate = true; | |
207 break; | |
208 } | |
209 } | |
210 } else if (pKey->m_dwCmd == FWL_KeyCommand::Char) { | |
211 bPropagate = true; | |
212 } | |
213 if (bPropagate) { | |
214 pKey->m_pDstTarget = m_pOuter; | |
215 pOuter->GetDelegate()->OnProcessMessage(pKey); | |
216 return true; | |
217 } | |
218 return false; | |
219 } | |
220 | |
221 void CFWL_ComboList::OnDropListKeyDown(CFWL_MsgKey* pKey) { | |
222 uint32_t dwKeyCode = pKey->m_dwKeyCode; | |
223 switch (dwKeyCode) { | |
224 case FWL_VKEY_Up: | |
225 case FWL_VKEY_Down: | |
226 case FWL_VKEY_Home: | |
227 case FWL_VKEY_End: { | |
228 CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter); | |
229 CFWL_ListItem* hItem = GetItem(this, pOuter->GetCurrentSelection()); | |
230 hItem = GetListItem(hItem, dwKeyCode); | |
231 if (!hItem) | |
232 break; | |
233 | |
234 SetSelection(hItem, hItem, true); | |
235 ScrollToVisible(hItem); | |
236 CFX_RectF rtInvalidate; | |
237 rtInvalidate.Set(0, 0, m_pProperties->m_rtWidget.width, | |
238 m_pProperties->m_rtWidget.height); | |
239 Repaint(&rtInvalidate); | |
240 break; | |
241 } | |
242 default: | |
243 break; | |
244 } | |
245 } | |
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