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https://github.com/reactos/reactos.git
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300 lines
12 KiB
C++
300 lines
12 KiB
C++
/*
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* AutoComplete interfaces implementation.
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*
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* Copyright 2004 Maxime Bellengé <maxime.bellenge@laposte.net>
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* Copyright 2009 Andrew Hill
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* Copyright 2021 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#pragma once
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#include <atltypes.h>
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#include <ui/rosctrls.h>
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class CACListView;
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class CACScrollBar;
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class CACSizeBox;
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class CAutoComplete;
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//////////////////////////////////////////////////////////////////////////////
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// CACListView --- auto-completion list control
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class CACListView : public CWindowImpl<CACListView, CListView>
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{
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public:
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CAutoComplete* m_pDropDown;
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INT m_cyItem;
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static LPCWSTR GetWndClassName() { return WC_LISTVIEW; }
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CACListView();
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HWND Create(HWND hwndParent);
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VOID SetFont(HFONT hFont);
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INT GetVisibleCount();
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CStringW GetItemText(INT iItem);
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INT ItemFromPoint(INT x, INT y);
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INT GetCurSel();
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VOID SetCurSel(INT iItem);
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VOID SelectHere(INT x, INT y);
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protected:
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// message map
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BEGIN_MSG_MAP(CACListView)
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MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
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MESSAGE_HANDLER(WM_LBUTTONUP, OnButtonUp)
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MESSAGE_HANDLER(WM_MBUTTONDOWN, OnMRButtonDown)
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MESSAGE_HANDLER(WM_MBUTTONUP, OnButtonUp)
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MESSAGE_HANDLER(WM_MOUSEWHEEL, OnMouseWheel)
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MESSAGE_HANDLER(WM_NCHITTEST, OnNCHitTest)
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MESSAGE_HANDLER(WM_RBUTTONDOWN, OnMRButtonDown)
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MESSAGE_HANDLER(WM_RBUTTONUP, OnButtonUp)
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END_MSG_MAP()
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// message handlers
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LRESULT OnButtonUp(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnMRButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnMouseWheel(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnNCHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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};
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//////////////////////////////////////////////////////////////////////////////
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// CACScrollBar --- auto-completion scrollbar control
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class CACScrollBar : public CWindowImpl<CACScrollBar>
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{
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public:
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CAutoComplete* m_pDropDown;
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static LPCWSTR GetWndClassName() { return WC_SCROLLBARW; }
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CACScrollBar() : m_pDropDown(NULL) { }
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HWND Create(HWND hwndParent);
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protected:
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// message map
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BEGIN_MSG_MAP(CACScrollBar)
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END_MSG_MAP()
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};
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//////////////////////////////////////////////////////////////////////////////
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// CACSizeBox --- auto-completion size-box control
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class CACSizeBox : public CWindowImpl<CACSizeBox>
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{
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public:
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CAutoComplete* m_pDropDown;
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static LPCWSTR GetWndClassName() { return WC_SCROLLBARW; }
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CACSizeBox() : m_pDropDown(NULL), m_bDowner(TRUE), m_bLongList(FALSE) { }
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HWND Create(HWND hwndParent);
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VOID SetStatus(BOOL bDowner, BOOL bLongList);
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protected:
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// protected variables
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BOOL m_bDowner;
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BOOL m_bLongList;
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// message map
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BEGIN_MSG_MAP(CACSizeBox)
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MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBkGnd)
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MESSAGE_HANDLER(WM_NCHITTEST, OnNCHitTest)
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MESSAGE_HANDLER(WM_PAINT, OnPaint)
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END_MSG_MAP()
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// message handlers
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LRESULT OnEraseBkGnd(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnNCHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnPaint(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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};
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//////////////////////////////////////////////////////////////////////////////
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// AC_THREAD --- Thread data for CAutoComplete
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typedef struct AC_THREAD
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{
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CAutoComplete *m_pThis;
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BOOL m_bAppendOK;
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CStringW m_strText;
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CSimpleArray<CStringW> m_innerList; // internal list
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CSimpleArray<CStringW> m_outerList; // outer list
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BOOL m_bReset;
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BOOL m_bExpand;
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VOID ReLoadInnerList(const CStringW& strText);
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} AC_THREAD, *PAC_THREAD;
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//////////////////////////////////////////////////////////////////////////////
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// CAutoComplete --- auto-completion drop-down window
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#define WC_DROPDOWNW L"Auto-Suggest Dropdown" // the window class name
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#define AUTOCOMP_START (WM_USER + 1)
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#define AUTOCOMP_FINISH (WM_USER + 2)
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class CAutoComplete
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: public CComCoClass<CAutoComplete, &CLSID_AutoComplete>
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, public CComObjectRootEx<CComMultiThreadModelNoCS>
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, public CWindowImpl<CAutoComplete>
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, public IAutoComplete2
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, public IAutoCompleteDropDown
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, public IEnumString
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{
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public:
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DECLARE_WND_CLASS_EX(WC_DROPDOWNW, CS_DROPSHADOW | CS_SAVEBITS, COLOR_3DFACE)
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static LPCWSTR GetWndClassName() { return WC_DROPDOWNW; }
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BOOL m_bInSetText; // this flag avoids subsequent action in WM_SETTEXT
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BOOL m_bInSelectItem; // this flag avoids subsequent action in LVN_ITEMCHANGED
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// public methods
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CAutoComplete();
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virtual ~CAutoComplete();
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HWND CreateDropDown();
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BOOL CanAutoSuggest() const;
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BOOL CanAutoAppend() const;
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BOOL UseTab() const;
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BOOL IsComboBoxDropped() const;
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BOOL FilterPrefixes() const;
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INT GetItemCount() const;
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CStringW GetItemText(INT iItem) const;
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CStringW GetEditText() const;
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VOID SetEditText(LPCWSTR pszText);
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CStringW GetStemText(const CStringW& strText) const;
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VOID SetEditSel(INT ich0, INT ich1);
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VOID ShowDropDown();
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VOID HideDropDown();
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VOID SelectItem(INT iItem);
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VOID DoAutoAppend(PAC_THREAD pThread);
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VOID DoThreadWork(PAC_THREAD pThread);
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VOID DoBackWord();
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VOID UpdateScrollBar();
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VOID StartCompletion(BOOL bAppendOK);
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VOID AutoCompThreadProc();
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VOID FinishCompletion(PAC_THREAD pThread);
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LRESULT EditWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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LRESULT OnEditChar(WPARAM wParam, LPARAM lParam);
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BOOL OnEditKeyDown(WPARAM wParam, LPARAM lParam);
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VOID OnListSelChange();
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BOOL OnListUpDown(UINT vk);
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// IAutoComplete methods
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STDMETHODIMP Enable(BOOL fEnable) override;
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STDMETHODIMP Init(HWND hwndEdit, IUnknown *punkACL, LPCOLESTR pwszRegKeyPath,
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LPCOLESTR pwszQuickComplete) override;
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// IAutoComplete2 methods
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STDMETHODIMP GetOptions(DWORD *pdwFlag) override;
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STDMETHODIMP SetOptions(DWORD dwFlag) override;
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// IAutoCompleteDropDown methods
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STDMETHODIMP GetDropDownStatus(DWORD *pdwFlags, LPWSTR *ppwszString) override;
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STDMETHODIMP ResetEnumerator() override;
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// IEnumString methods
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STDMETHODIMP Next(ULONG celt, LPOLESTR *rgelt, ULONG *pceltFetched) override;
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STDMETHODIMP Skip(ULONG celt) override;
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STDMETHODIMP Reset() override;
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STDMETHODIMP Clone(IEnumString **ppOut) override;
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protected:
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// The following variables are POD (plain old data):
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BOOL m_bDowner; // downer or upper? (below textbox or above textbox)
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DWORD m_dwOptions; // for IAutoComplete2::SetOptions
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DWORD m_bEnabled; // the auto-composition is enabled?
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HWND m_hwndCombo; // the combobox if any
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HFONT m_hFont; // the font
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BOOL m_bResized; // re-sized by size-box?
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RECT m_rcEdit; // in screen coordinates, to watch the position
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HWND m_hwndEdit; // the textbox
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WNDPROC m_fnOldEditProc; // old textbox procedure
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EDITWORDBREAKPROCW m_fnOldWordBreakProc;
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HANDLE m_hThread;
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PAC_THREAD m_pThread;
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// The following variables are non-POD:
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CStringW m_strText; // internal text (used in selecting item and reverting text)
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CStringW m_strStemText; // dirname + '\\'
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CStringW m_strQuickComplete; // used for [Ctrl]+[Enter]
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CACListView m_hwndList; // this listview is virtual
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CACScrollBar m_hwndScrollBar; // scroll bar contol
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CACSizeBox m_hwndSizeBox; // the size grip
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CComPtr<IEnumString> m_pEnum; // used for enumeration
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CComPtr<IACList> m_pACList; // for IACList::Expand to update the list
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CSimpleArray<CStringW> m_innerList; // inner list
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CSimpleArray<CStringW> m_outerList; // outer list
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// protected methods
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VOID UpdateDropDownState();
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VOID CalcRects(BOOL bDowner, RECT& rcListView, RECT& rcScrollBar, RECT& rcSizeBox) const;
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VOID LoadQuickComplete(LPCWSTR pwszRegKeyPath, LPCWSTR pwszQuickComplete);
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CStringW GetQuickEdit(LPCWSTR pszText) const;
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VOID RepositionDropDown();
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VOID ReLoadInnerList(PAC_THREAD pThread);
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VOID ExtractInnerList(CSimpleArray<CStringW>& outerList,
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const CSimpleArray<CStringW>& innerList,
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const CString& strText);
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// message map
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BEGIN_MSG_MAP(CAutoComplete)
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MESSAGE_HANDLER(AUTOCOMP_START, OnAutoCompStart)
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MESSAGE_HANDLER(AUTOCOMP_FINISH, OnAutoCompFinish)
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MESSAGE_HANDLER(WM_CREATE, OnCreate)
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MESSAGE_HANDLER(WM_NCDESTROY, OnNCDestroy)
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MESSAGE_HANDLER(WM_DRAWITEM, OnDrawItem)
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MESSAGE_HANDLER(WM_EXITSIZEMOVE, OnExitSizeMove)
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MESSAGE_HANDLER(WM_GETMINMAXINFO, OnGetMinMaxInfo)
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MESSAGE_HANDLER(WM_MEASUREITEM, OnMeasureItem)
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MESSAGE_HANDLER(WM_MOUSEACTIVATE, OnMouseActivate)
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MESSAGE_HANDLER(WM_NCACTIVATE, OnNCActivate)
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MESSAGE_HANDLER(WM_NCLBUTTONDOWN, OnNCLButtonDown)
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MESSAGE_HANDLER(WM_NOTIFY, OnNotify)
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MESSAGE_HANDLER(WM_NCHITTEST, OnNCHitTest)
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MESSAGE_HANDLER(WM_SIZE, OnSize)
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MESSAGE_HANDLER(WM_SHOWWINDOW, OnShowWindow)
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MESSAGE_HANDLER(WM_TIMER, OnTimer)
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MESSAGE_HANDLER(WM_VSCROLL, OnVScroll)
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END_MSG_MAP()
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// message handlers
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LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnNCDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnDrawItem(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnExitSizeMove(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnGetMinMaxInfo(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnMeasureItem(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnMouseActivate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnNCActivate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnNCLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnNotify(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnNCHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnShowWindow(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnVScroll(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnAutoCompStart(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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LRESULT OnAutoCompFinish(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
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virtual VOID OnFinalMessage(HWND) override;
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DECLARE_REGISTRY_RESOURCEID(IDR_AUTOCOMPLETE)
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DECLARE_NOT_AGGREGATABLE(CAutoComplete)
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DECLARE_PROTECT_FINAL_CONSTRUCT()
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BEGIN_COM_MAP(CAutoComplete)
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COM_INTERFACE_ENTRY_IID(IID_IAutoComplete, IAutoComplete)
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COM_INTERFACE_ENTRY_IID(IID_IAutoComplete2, IAutoComplete2)
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COM_INTERFACE_ENTRY_IID(IID_IAutoCompleteDropDown, IAutoCompleteDropDown)
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COM_INTERFACE_ENTRY_IID(IID_IEnumString, IEnumString)
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END_COM_MAP()
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};
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