diff options
Diffstat (limited to 'xfa/fwl/cfwl_combolist.cpp')
| -rw-r--r-- | xfa/fwl/cfwl_combolist.cpp | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/xfa/fwl/cfwl_combolist.cpp b/xfa/fwl/cfwl_combolist.cpp new file mode 100644 index 0000000000..4ec3abe072 --- /dev/null +++ b/xfa/fwl/cfwl_combolist.cpp @@ -0,0 +1,245 @@ +// 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 CFX_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); + CFX_WideString wsText = GetItemText(this, hItem); + FX_STRSIZE pos = wsText.Find(wsMatch.c_str()); + if (!pos) + return i; + } + return -1; +} + +void CFWL_ComboList::ChangeSelected(int32_t iSel) { + CFWL_ListItem* hItem = GetItem(this, iSel); + CFX_RectF rtInvalidate; + rtInvalidate.Reset(); + CFWL_ListItem* hOld = GetSelItem(0); + int32_t iOld = GetItemIndex(this, hOld); + if (iOld == iSel) + return; + if (iOld > -1) { + CFWL_ListItem* hItem = GetItem(this, iOld); + GetItemRect(this, hItem, rtInvalidate); + SetSelItem(hOld, false); + } + if (hItem) { + CFX_RectF rect; + CFWL_ListItem* hItem = GetItem(this, iSel); + GetItemRect(this, hItem, rect); + rtInvalidate.Union(rect); + CFWL_ListItem* hSel = GetItem(this, iSel); + SetSelItem(hSel, true); + } + if (!rtInvalidate.IsEmpty()) + Repaint(&rtInvalidate); +} + +void CFWL_ComboList::ClientToOuter(FX_FLOAT& fx, FX_FLOAT& fy) { + fx += m_pProperties->m_rtWidget.left, fy += m_pProperties->m_rtWidget.top; + CFWL_Widget* pOwner = GetOwner(); + if (!pOwner) + return; + pOwner->TransformTo(m_pOuter, fx, fy); +} + +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_fx, pMsg->m_fy)) { + pMsg->m_fx -= rect.left; + pMsg->m_fy -= rect.top; + 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_fx, pMsg->m_fy)) { + if (m_bNotifyOwner) + m_bNotifyOwner = false; + + CFWL_ScrollBar* vertSB = GetVertScrollBar(); + if (IsShowScrollBar(true) && vertSB) { + CFX_RectF rect = vertSB->GetWidgetRect(); + if (rect.Contains(pMsg->m_fx, pMsg->m_fy)) + return; + } + + CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); + if (!hItem) + return; + + ChangeSelected(GetItemIndex(this, hItem)); + } else if (m_bNotifyOwner) { + ClientToOuter(pMsg->m_fx, pMsg->m_fy); + 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_fx, pMsg->m_fy)) + 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) { + ClientToOuter(pMsg->m_fx, pMsg->m_fy); + pOuter->GetDelegate()->OnProcessMessage(pMsg); + return; + } + + CFWL_ScrollBar* vertSB = GetVertScrollBar(); + if (IsShowScrollBar(true) && vertSB) { + CFX_RectF rect = vertSB->GetWidgetRect(); + if (rect.Contains(pMsg->m_fx, pMsg->m_fy)) + return; + } + pOuter->ShowDropList(false); + + CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy); + 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->m_pDstTarget = 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; + rtInvalidate.Set(0, 0, m_pProperties->m_rtWidget.width, + m_pProperties->m_rtWidget.height); + Repaint(&rtInvalidate); + break; + } + default: + break; + } +} |