mirror of
https://github.com/nextcloud/desktop.git
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269 lines
No EOL
7.3 KiB
C++
269 lines
No EOL
7.3 KiB
C++
/**
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* Copyright (c) 2015 Daniel Molkentin <danimo@owncloud.com>. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or modify it under
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* the terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 2.1 of the License, or (at your option)
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* any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*/
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#include "stdafx.h"
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#include "OCContextMenu.h"
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#include "OCClientInterface.h"
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#include <shobjidl.h>
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#include <shlwapi.h>
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#include <shellapi.h>
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#include <StringUtil.h>
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extern HINSTANCE g_hInst;
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extern long g_cDllRef;
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#define IDM_SHARE 0
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OCContextMenu::OCContextMenu(void)
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: m_cRef(1)
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, m_pszMenuText(L"&Share")
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, m_pszVerb("ocshare")
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, m_pwszVerb(L"ocshare")
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, m_pszVerbCanonicalName("OCShareViaOC")
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, m_pwszVerbCanonicalName(L"OCShareViaOC")
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, m_pszVerbHelpText("Share via ownCloud")
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, m_pwszVerbHelpText(L"Share via ownCloud")
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{
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InterlockedIncrement(&g_cDllRef);
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}
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OCContextMenu::~OCContextMenu(void)
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{
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InterlockedDecrement(&g_cDllRef);
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}
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void OCContextMenu::OnVerbDisplayFileName(HWND hWnd)
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{
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OCClientInterface::ShareObject(std::wstring(m_szSelectedFile));
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}
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#pragma region IUnknown
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// Query to the interface the component supported.
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IFACEMETHODIMP OCContextMenu::QueryInterface(REFIID riid, void **ppv)
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{
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static const QITAB qit[] =
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{
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QITABENT(OCContextMenu, IContextMenu),
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QITABENT(OCContextMenu, IShellExtInit),
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{ 0 },
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};
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return QISearch(this, qit, riid, ppv);
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}
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// Increase the reference count for an interface on an object.
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IFACEMETHODIMP_(ULONG) OCContextMenu::AddRef()
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{
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return InterlockedIncrement(&m_cRef);
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}
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// Decrease the reference count for an interface on an object.
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IFACEMETHODIMP_(ULONG) OCContextMenu::Release()
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{
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ULONG cRef = InterlockedDecrement(&m_cRef);
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if (0 == cRef) {
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delete this;
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}
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return cRef;
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}
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#pragma endregion
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#pragma region IShellExtInit
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// Initialize the context menu handler.
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IFACEMETHODIMP OCContextMenu::Initialize(
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LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hKeyProgID)
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{
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if (!pDataObj) {
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return E_INVALIDARG;
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}
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HRESULT hr = E_FAIL;
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FORMATETC fe = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
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STGMEDIUM stm;
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if (SUCCEEDED(pDataObj->GetData(&fe, &stm))) {
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// Get an HDROP handle.
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HDROP hDrop = static_cast<HDROP>(GlobalLock(stm.hGlobal));
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if (hDrop) {
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// Ignore multi-selections
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UINT nFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
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if (nFiles == 1) {
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// Get the path of the file.
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if (0 != DragQueryFile(hDrop, 0, m_szSelectedFile, ARRAYSIZE(m_szSelectedFile)))
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{
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hr = S_OK;
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}
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}
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GlobalUnlock(stm.hGlobal);
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}
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ReleaseStgMedium(&stm);
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}
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// If any value other than S_OK is returned from the method, the context
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// menu item is not displayed.
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return hr;
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}
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#pragma endregion
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#pragma region IContextMenu
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void InsertSeperator(HMENU hMenu, UINT indexMenu)
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{
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// Add a separator.
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MENUITEMINFO sep = { sizeof(sep) };
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sep.fMask = MIIM_TYPE;
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sep.fType = MFT_SEPARATOR;
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InsertMenuItem(hMenu, indexMenu, TRUE, &sep);
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}
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IFACEMETHODIMP OCContextMenu::QueryContextMenu(HMENU hMenu, UINT indexMenu, UINT idCmdFirst, UINT idCmdLast, UINT uFlags)
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{
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// If uFlags include CMF_DEFAULTONLY then we should not do anything.
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if (CMF_DEFAULTONLY & uFlags)
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{
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return MAKE_HRESULT(SEVERITY_SUCCESS, 0, USHORT(0));
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}
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OCClientInterface::ContextMenuInfo info = OCClientInterface::FetchInfo();
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bool skip = true;
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for (const std::wstring path : info.watchedDirectories) {
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if (StringUtil::begins_with(std::wstring(m_szSelectedFile), path)) {
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skip = false;
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break;
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}
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}
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if (skip) {
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return MAKE_HRESULT(SEVERITY_SUCCESS, 0, USHORT(0));
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}
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InsertSeperator(hMenu, indexMenu);
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indexMenu++;
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assert(!info.shareMenuTitle.empty());
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MENUITEMINFO mii = { sizeof(mii) };
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mii.fMask = MIIM_STRING | MIIM_FTYPE | MIIM_ID | MIIM_STATE;
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mii.wID = idCmdFirst + IDM_SHARE;
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mii.fType = MFT_STRING;
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mii.dwTypeData = &info.shareMenuTitle[0];
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mii.fState = MFS_ENABLED;
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if (!InsertMenuItem(hMenu, indexMenu, TRUE, &mii))
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{
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return HRESULT_FROM_WIN32(GetLastError());
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}
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indexMenu++;
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InsertSeperator(hMenu, indexMenu);
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// Return an HRESULT value with the severity set to SEVERITY_SUCCESS.
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// Set the code value to the offset of the largest command identifier
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// that was assigned, plus one (1).
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return MAKE_HRESULT(SEVERITY_SUCCESS, 0, USHORT(IDM_SHARE + 1));
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}
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IFACEMETHODIMP OCContextMenu::InvokeCommand(LPCMINVOKECOMMANDINFO pici)
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{
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// For the Unicode case, if the high-order word is not zero, the
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// command's verb string is in lpcmi->lpVerbW.
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if (HIWORD(((CMINVOKECOMMANDINFOEX*)pici)->lpVerbW))
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{
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// Is the verb supported by this context menu extension?
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if (StrCmpIW(((CMINVOKECOMMANDINFOEX*)pici)->lpVerbW, m_pwszVerb) == 0)
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{
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OnVerbDisplayFileName(pici->hwnd);
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}
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else
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{
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// If the verb is not recognized by the context menu handler, it
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// must return E_FAIL to allow it to be passed on to the other
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// context menu handlers that might implement that verb.
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return E_FAIL;
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}
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}
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// If the command cannot be identified through the verb string, then
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// check the identifier offset.
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else
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{
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// Is the command identifier offset supported by this context menu
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// extension?
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if (LOWORD(pici->lpVerb) == IDM_SHARE)
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{
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OnVerbDisplayFileName(pici->hwnd);
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}
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else
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{
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// If the verb is not recognized by the context menu handler, it
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// must return E_FAIL to allow it to be passed on to the other
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// context menu handlers that might implement that verb.
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return E_FAIL;
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}
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}
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return S_OK;
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}
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IFACEMETHODIMP OCContextMenu::GetCommandString(UINT_PTR idCommand,
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UINT uFlags, UINT *pwReserved, LPSTR pszName, UINT cchMax)
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{
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HRESULT hr = E_INVALIDARG;
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if (idCommand == IDM_SHARE)
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{
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switch (uFlags)
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{
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case GCS_HELPTEXTW:
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// Only useful for pre-Vista versions of Windows that have a
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// Status bar.
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hr = StringCchCopy(reinterpret_cast<PWSTR>(pszName), cchMax,
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m_pwszVerbHelpText);
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break;
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case GCS_VERBW:
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// GCS_VERBW is an optional feature that enables a caller to
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// discover the canonical name for the verb passed in through
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// idCommand.
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hr = StringCchCopy(reinterpret_cast<PWSTR>(pszName), cchMax,
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m_pwszVerbCanonicalName);
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break;
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default:
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hr = S_OK;
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}
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}
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// If the command (idCommand) is not supported by this context menu
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// extension handler, return E_INVALIDARG.
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return hr;
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}
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#pragma endregion |