summaryrefslogtreecommitdiffstats
path: root/widget/windows/nsNativeDragSource.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /widget/windows/nsNativeDragSource.cpp
parentInitial commit. (diff)
downloadfirefox-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.cpp98
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;
+}