| // Copyright 2016 The PDFium Authors |
| // 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 "third_party/base/check.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" |
| #include "xfa/fwl/fwl_widgetdef.h" |
| |
| CFWL_ComboList::CFWL_ComboList(CFWL_App* app, |
| const Properties& properties, |
| CFWL_Widget* pOuter) |
| : CFWL_ListBox(app, properties, pOuter) { |
| DCHECK(pOuter); |
| } |
| |
| CFWL_ComboList::~CFWL_ComboList() = default; |
| |
| int32_t CFWL_ComboList::MatchItem(WideStringView wsMatch) { |
| if (wsMatch.IsEmpty()) |
| return -1; |
| |
| int32_t iCount = CountItems(this); |
| for (int32_t i = 0; i < iCount; i++) { |
| CFWL_ListBox::Item* hItem = GetItem(this, i); |
| WideString wsText = hItem ? hItem->GetText() : WideString(); |
| auto pos = wsText.Find(wsMatch); |
| if (pos.has_value() && pos.value() == 0) |
| return i; |
| } |
| return -1; |
| } |
| |
| void CFWL_ComboList::ChangeSelected(int32_t iSel) { |
| CFWL_ListBox::Item* hItem = GetItem(this, iSel); |
| CFWL_ListBox::Item* hOld = GetSelItem(0); |
| int32_t iOld = GetItemIndex(this, hOld); |
| if (iOld == iSel) |
| return; |
| |
| CFX_RectF rtInvalidate; |
| if (iOld > -1) { |
| if (CFWL_ListBox::Item* hOldItem = GetItem(this, iOld)) |
| rtInvalidate = hOldItem->GetRect(); |
| SetSelItem(hOld, false); |
| } |
| if (hItem) { |
| if (CFWL_ListBox::Item* hOldItem = GetItem(this, iSel)) |
| rtInvalidate.Union(hOldItem->GetRect()); |
| CFWL_ListBox::Item* hSel = GetItem(this, iSel); |
| SetSelItem(hSel, true); |
| } |
| if (!rtInvalidate.IsEmpty()) |
| RepaintRect(rtInvalidate); |
| } |
| |
| CFX_PointF CFWL_ComboList::ClientToOuter(const CFX_PointF& point) { |
| return point + CFX_PointF(m_WidgetRect.left, m_WidgetRect.top); |
| } |
| |
| void CFWL_ComboList::OnProcessMessage(CFWL_Message* pMessage) { |
| CFWL_Message::Type type = pMessage->GetType(); |
| bool backDefault = true; |
| if (type == CFWL_Message::Type::kSetFocus || |
| type == CFWL_Message::Type::kKillFocus) { |
| OnDropListFocusChanged(pMessage, type == CFWL_Message::Type::kSetFocus); |
| } else if (type == CFWL_Message::Type::kMouse) { |
| CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage); |
| CFWL_ScrollBar* vertSB = GetVertScrollBar(); |
| if (IsShowVertScrollBar() && 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 CFWL_MessageMouse::MouseCommand::kMove: |
| backDefault = false; |
| OnDropListMouseMove(pMsg); |
| break; |
| case CFWL_MessageMouse::MouseCommand::kLeftButtonDown: |
| backDefault = false; |
| OnDropListLButtonDown(pMsg); |
| break; |
| case CFWL_MessageMouse::MouseCommand::kLeftButtonUp: |
| backDefault = false; |
| OnDropListLButtonUp(pMsg); |
| break; |
| default: |
| break; |
| } |
| } else if (type == CFWL_Message::Type::kKey) { |
| 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*>(GetOuter()); |
| if (pKill->IsFocusedOnWidget(pOuter) || |
| pKill->IsFocusedOnWidget(pOuter->GetComboEdit())) { |
| pOuter->HideDropDownList(); |
| } |
| } |
| |
| void CFWL_ComboList::OnDropListMouseMove(CFWL_MessageMouse* pMsg) { |
| if (GetRTClient().Contains(pMsg->m_pos)) { |
| if (m_bNotifyOwner) |
| m_bNotifyOwner = false; |
| |
| CFWL_ScrollBar* vertSB = GetVertScrollBar(); |
| if (IsShowVertScrollBar() && vertSB) { |
| CFX_RectF rect = vertSB->GetWidgetRect(); |
| if (rect.Contains(pMsg->m_pos)) |
| return; |
| } |
| |
| CFWL_ListBox::Item* 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*>(GetOuter()); |
| 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*>(GetOuter()); |
| pOuter->HideDropDownList(); |
| } |
| |
| void CFWL_ComboList::OnDropListLButtonUp(CFWL_MessageMouse* pMsg) { |
| CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(GetOuter()); |
| if (m_bNotifyOwner) { |
| pMsg->m_pos = ClientToOuter(pMsg->m_pos); |
| pOuter->GetDelegate()->OnProcessMessage(pMsg); |
| return; |
| } |
| |
| CFWL_ScrollBar* vertSB = GetVertScrollBar(); |
| if (IsShowVertScrollBar() && vertSB) { |
| CFX_RectF rect = vertSB->GetWidgetRect(); |
| if (rect.Contains(pMsg->m_pos)) |
| return; |
| } |
| pOuter->HideDropDownList(); |
| |
| CFWL_ListBox::Item* hItem = GetItemAtPoint(pMsg->m_pos); |
| if (hItem) |
| pOuter->ProcessSelChanged(true); |
| } |
| |
| bool CFWL_ComboList::OnDropListKey(CFWL_MessageKey* pKey) { |
| CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(GetOuter()); |
| bool bPropagate = false; |
| if (pKey->m_dwCmd == CFWL_MessageKey::KeyCommand::kKeyDown) { |
| uint32_t dwKeyCode = pKey->m_dwKeyCodeOrChar; |
| switch (dwKeyCode) { |
| case XFA_FWL_VKEY_Return: |
| case XFA_FWL_VKEY_Escape: { |
| pOuter->HideDropDownList(); |
| return true; |
| } |
| case XFA_FWL_VKEY_Up: |
| case XFA_FWL_VKEY_Down: { |
| OnDropListKeyDown(pKey); |
| pOuter->ProcessSelChanged(false); |
| return true; |
| } |
| default: { |
| bPropagate = true; |
| break; |
| } |
| } |
| } else if (pKey->m_dwCmd == CFWL_MessageKey::KeyCommand::kChar) { |
| bPropagate = true; |
| } |
| if (bPropagate) { |
| pKey->SetDstTarget(GetOuter()); |
| pOuter->GetDelegate()->OnProcessMessage(pKey); |
| return true; |
| } |
| return false; |
| } |
| |
| void CFWL_ComboList::OnDropListKeyDown(CFWL_MessageKey* pKey) { |
| auto dwKeyCode = static_cast<XFA_FWL_VKEYCODE>(pKey->m_dwKeyCodeOrChar); |
| switch (dwKeyCode) { |
| case XFA_FWL_VKEY_Up: |
| case XFA_FWL_VKEY_Down: |
| case XFA_FWL_VKEY_Home: |
| case XFA_FWL_VKEY_End: { |
| CFWL_ComboBox* pOuter = static_cast<CFWL_ComboBox*>(GetOuter()); |
| CFWL_ListBox::Item* hItem = GetItem(this, pOuter->GetCurrentSelection()); |
| hItem = GetListItem(hItem, dwKeyCode); |
| if (!hItem) |
| break; |
| |
| SetSelection(hItem, hItem, true); |
| ScrollToVisible(hItem); |
| RepaintRect(CFX_RectF(0, 0, m_WidgetRect.width, m_WidgetRect.height)); |
| break; |
| } |
| default: |
| break; |
| } |
| } |