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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /widget/windows/nsNativeDragSource.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'widget/windows/nsNativeDragSource.cpp')
-rw-r--r-- | widget/windows/nsNativeDragSource.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/widget/windows/nsNativeDragSource.cpp b/widget/windows/nsNativeDragSource.cpp new file mode 100644 index 0000000000..ca5459e9df --- /dev/null +++ b/widget/windows/nsNativeDragSource.cpp @@ -0,0 +1,98 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsNativeDragSource.h" +#include <stdio.h> +#include "nsISupportsImpl.h" +#include "nsString.h" +#include "nsToolkit.h" +#include "nsWidgetsCID.h" +#include "nsIDragService.h" +#include "nsServiceManagerUtils.h" +#include "mozilla/dom/DataTransfer.h" + +/* + * class nsNativeDragSource + */ +nsNativeDragSource::nsNativeDragSource( + mozilla::dom::DataTransfer* aDataTransfer) + : m_cRef(0), m_hCursor(nullptr), mUserCancelled(false) { + mDataTransfer = aDataTransfer; +} + +nsNativeDragSource::~nsNativeDragSource() {} + +STDMETHODIMP +nsNativeDragSource::QueryInterface(REFIID riid, void** ppv) { + *ppv = nullptr; + + if (IID_IUnknown == riid || IID_IDropSource == riid) *ppv = this; + + if (nullptr != *ppv) { + ((LPUNKNOWN)*ppv)->AddRef(); + return S_OK; + } + + return E_NOINTERFACE; +} + +STDMETHODIMP_(ULONG) +nsNativeDragSource::AddRef(void) { + ++m_cRef; + NS_LOG_ADDREF(this, m_cRef, "nsNativeDragSource", sizeof(*this)); + return m_cRef; +} + +STDMETHODIMP_(ULONG) +nsNativeDragSource::Release(void) { + --m_cRef; + NS_LOG_RELEASE(this, m_cRef, "nsNativeDragSource"); + if (0 != m_cRef) return m_cRef; + + delete this; + return 0; +} + +STDMETHODIMP +nsNativeDragSource::QueryContinueDrag(BOOL fEsc, DWORD grfKeyState) { + nsCOMPtr<nsIDragService> dragService = + do_GetService("@mozilla.org/widget/dragservice;1"); + if (dragService) { + DWORD pos = ::GetMessagePos(); + dragService->DragMoved(GET_X_LPARAM(pos), GET_Y_LPARAM(pos)); + } + + if (fEsc) { + mUserCancelled = true; + return DRAGDROP_S_CANCEL; + } + + if (!(grfKeyState & MK_LBUTTON) || (grfKeyState & MK_RBUTTON)) + return DRAGDROP_S_DROP; + + return S_OK; +} + +STDMETHODIMP +nsNativeDragSource::GiveFeedback(DWORD dwEffect) { + // For drags involving tabs, we do some custom work with cursors. + if (mDataTransfer) { + nsAutoString cursor; + mDataTransfer->GetMozCursor(cursor); + if (cursor.EqualsLiteral("default")) { + m_hCursor = ::LoadCursor(0, IDC_ARROW); + } else { + m_hCursor = nullptr; + } + } + + if (m_hCursor) { + ::SetCursor(m_hCursor); + return S_OK; + } + + // Let the system choose which cursor to apply. + return DRAGDROP_S_USEDEFAULTCURSORS; +} |