summaryrefslogtreecommitdiff
path: root/xfa/fwl/cfwl_combolist.cpp
blob: 004fbb46b9289b16b196844421de44630479120e (plain)
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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include "xfa/fwl/cfwl_combolist.h"

#include <memory>
#include <utility>

#include "third_party/base/ptr_util.h"
#include "xfa/fwl/cfwl_combobox.h"
#include "xfa/fwl/cfwl_comboedit.h"
#include "xfa/fwl/cfwl_listbox.h"
#include "xfa/fwl/cfwl_messagekey.h"
#include "xfa/fwl/cfwl_messagekillfocus.h"
#include "xfa/fwl/cfwl_messagemouse.h"

CFWL_ComboList::CFWL_ComboList(
    const CFWL_App* app,
    std::unique_ptr<CFWL_WidgetProperties> properties,
    CFWL_Widget* pOuter)
    : CFWL_ListBox(app, std::move(properties), pOuter), m_bNotifyOwner(true) {
  ASSERT(pOuter);
}

int32_t CFWL_ComboList::MatchItem(const WideString& wsMatch) {
  if (wsMatch.IsEmpty())
    return -1;

  int32_t iCount = CountItems(this);
  for (int32_t i = 0; i < iCount; i++) {
    CFWL_ListItem* hItem = GetItem(this, i);
    WideString wsText = hItem ? hItem->GetText() : L"";
    auto pos = wsText.Find(wsMatch.c_str());
    if (pos.has_value() && pos.value() == 0)
      return i;
  }
  return -1;
}

void CFWL_ComboList::ChangeSelected(int32_t iSel) {
  CFWL_ListItem* hItem = GetItem(this, iSel);
  CFWL_ListItem* hOld = GetSelItem(0);
  int32_t iOld = GetItemIndex(this, hOld);
  if (iOld == iSel)
    return;

  CFX_RectF rtInvalidate;
  if (iOld > -1) {
    if (CFWL_ListItem* hOldItem = GetItem(this, iOld))
      rtInvalidate = hOldItem->GetRect();
    SetSelItem(hOld, false);
  }
  if (hItem) {
    if (CFWL_ListItem* hOldItem = GetItem(this, iSel))
      rtInvalidate.Union(hOldItem->GetRect());
    CFWL_ListItem* hSel = GetItem(this, iSel);
    SetSelItem(hSel, true);
  }
  if (!rtInvalidate.IsEmpty())
    RepaintRect(rtInvalidate);
}

CFX_PointF CFWL_ComboList::ClientToOuter(const CFX_PointF& point) {
  CFX_PointF ret = point + CFX_PointF(m_pProperties->m_rtWidget.left,
                                      m_pProperties->m_rtWidget.top);
  CFWL_Widget* pOwner = GetOwner();
  return pOwner ? pOwner->TransformTo(m_pOuter, ret) : ret;
}

void CFWL_ComboList::OnProcessMessage(CFWL_Message* pMessage) {
  if (!pMessage)
    return;

  CFWL_Message::Type type = pMessage->GetType();
  bool backDefault = true;
  if (type == CFWL_Message::Type::SetFocus ||
      type == CFWL_Message::Type::KillFocus) {
    OnDropListFocusChanged(pMessage, type == CFWL_Message::Type::SetFocus);
  } else if (type == CFWL_Message::Type::Mouse) {
    CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
    CFWL_ScrollBar* vertSB = GetVertScrollBar();
    if (IsShowScrollBar(true) && vertSB) {
      CFX_RectF rect = vertSB->GetWidgetRect();
      if (rect.Contains(pMsg->m_pos)) {
        pMsg->m_pos -= rect.TopLeft();
        vertSB->GetDelegate()->OnProcessMessage(pMsg);
        return;
      }
    }
    switch (pMsg->m_dwCmd) {
      case FWL_MouseCommand::Move: {
        backDefault = false;
        OnDropListMouseMove(pMsg);
        break;
      }
      case FWL_MouseCommand::LeftButtonDown: {
        backDefault = false;
        OnDropListLButtonDown(pMsg);
        break;
      }
      case FWL_MouseCommand::LeftButtonUp: {
        backDefault = false;
        OnDropListLButtonUp(pMsg);
        break;
      }
      default:
        break;
    }
  } else if (type == CFWL_Message::Type::Key) {
    backDefault = !OnDropListKey(static_cast<CFWL_MessageKey*>(pMessage));
  }
  if (backDefault)
    CFWL_ListBox::OnProcessMessage(pMessage);
}

void CFWL_ComboList::OnDropListFocusChanged(CFWL_Message* pMsg, bool bSet) {
  if (bSet)
    return;

  CFWL_MessageKillFocus* pKill = static_cast<CFWL_MessageKillFocus*>(pMsg);
  CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter);
  if (pKill->m_pSetFocus == m_pOuter ||
      pKill->m_pSetFocus == pOuter->GetComboEdit()) {
    pOuter->ShowDropList(false);
  }
}

void CFWL_ComboList::OnDropListMouseMove(CFWL_MessageMouse* pMsg) {
  if (GetRTClient().Contains(pMsg->m_pos)) {
    if (m_bNotifyOwner)
      m_bNotifyOwner = false;

    CFWL_ScrollBar* vertSB = GetVertScrollBar();
    if (IsShowScrollBar(true) && vertSB) {
      CFX_RectF rect = vertSB->GetWidgetRect();
      if (rect.Contains(pMsg->m_pos))
        return;
    }

    CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_pos);
    if (!hItem)
      return;

    ChangeSelected(GetItemIndex(this, hItem));
  } else if (m_bNotifyOwner) {
    pMsg->m_pos = ClientToOuter(pMsg->m_pos);

    CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter);
    pOuter->GetDelegate()->OnProcessMessage(pMsg);
  }
}

void CFWL_ComboList::OnDropListLButtonDown(CFWL_MessageMouse* pMsg) {
  if (GetRTClient().Contains(pMsg->m_pos))
    return;

  CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter);
  pOuter->ShowDropList(false);
}

void CFWL_ComboList::OnDropListLButtonUp(CFWL_MessageMouse* pMsg) {
  CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter);
  if (m_bNotifyOwner) {
    pMsg->m_pos = ClientToOuter(pMsg->m_pos);
    pOuter->GetDelegate()->OnProcessMessage(pMsg);
    return;
  }

  CFWL_ScrollBar* vertSB = GetVertScrollBar();
  if (IsShowScrollBar(true) && vertSB) {
    CFX_RectF rect = vertSB->GetWidgetRect();
    if (rect.Contains(pMsg->m_pos))
      return;
  }
  pOuter->ShowDropList(false);

  CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_pos);
  if (hItem)
    pOuter->ProcessSelChanged(true);
}

bool CFWL_ComboList::OnDropListKey(CFWL_MessageKey* pKey) {
  CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter);
  bool bPropagate = false;
  if (pKey->m_dwCmd == FWL_KeyCommand::KeyDown) {
    uint32_t dwKeyCode = pKey->m_dwKeyCode;
    switch (dwKeyCode) {
      case FWL_VKEY_Return:
      case FWL_VKEY_Escape: {
        pOuter->ShowDropList(false);
        return true;
      }
      case FWL_VKEY_Up:
      case FWL_VKEY_Down: {
        OnDropListKeyDown(pKey);
        pOuter->ProcessSelChanged(false);
        return true;
      }
      default: {
        bPropagate = true;
        break;
      }
    }
  } else if (pKey->m_dwCmd == FWL_KeyCommand::Char) {
    bPropagate = true;
  }
  if (bPropagate) {
    pKey->SetDstTarget(m_pOuter);
    pOuter->GetDelegate()->OnProcessMessage(pKey);
    return true;
  }
  return false;
}

void CFWL_ComboList::OnDropListKeyDown(CFWL_MessageKey* pKey) {
  uint32_t dwKeyCode = pKey->m_dwKeyCode;
  switch (dwKeyCode) {
    case FWL_VKEY_Up:
    case FWL_VKEY_Down:
    case FWL_VKEY_Home:
    case FWL_VKEY_End: {
      CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(m_pOuter);
      CFWL_ListItem* hItem = GetItem(this, pOuter->GetCurrentSelection());
      hItem = GetListItem(hItem, dwKeyCode);
      if (!hItem)
        break;

      SetSelection(hItem, hItem, true);
      ScrollToVisible(hItem);
      CFX_RectF rtInvalidate(0, 0, m_pProperties->m_rtWidget.width,
                             m_pProperties->m_rtWidget.height);
      RepaintRect(rtInvalidate);
      break;
    }
    default:
      break;
  }
}