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used a hidden drop window to get drag filename

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This commit is contained in:
jerry
2014-04-22 10:33:16 +00:00
parent 7b8cdb6b38
commit b85a9b628e
7 changed files with 433 additions and 59 deletions
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126
src/lib/platform/MSWindowsScreen.cpp
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@@ -18,6 +18,7 @@
#include "platform/MSWindowsScreen.h"
#include "platform/MSWindowsDropTarget.h"
#include "client/Client.h"
#include "platform/MSWindowsClipboard.h"
#include "platform/MSWindowsDesks.h"
@@ -118,7 +119,9 @@ CMSWindowsScreen::CMSWindowsScreen(
m_keyState(NULL),
m_hasMouse(GetSystemMetrics(SM_MOUSEPRESENT) != 0),
m_showingMouse(false),
m_events(events)
m_events(events),
m_dropWindow(NULL),
m_dropWindowSize(20)
{
assert(s_windowInstance != NULL);
assert(s_screen == NULL);
@@ -157,6 +160,11 @@ CMSWindowsScreen::CMSWindowsScreen(
else {
LOG((CLOG_ERR "failed to get desktop path, no drop target available, error=%d", GetLastError()));
}
OleInitialize(0);
m_dropWindow = createDropWindow(m_class, "DropWindow");
m_dropTarget = new CMSWindowsDropTarget();
RegisterDragDrop(m_dropWindow, m_dropTarget);
}
catch (...) {
delete m_keyState;
@@ -190,6 +198,11 @@ CMSWindowsScreen::~CMSWindowsScreen()
destroyWindow(m_window);
destroyClass(m_class);
RevokeDragDrop(m_dropWindow);
m_dropTarget->Release();
OleUninitialize();
destroyWindow(m_dropWindow);
s_screen = NULL;
}
@@ -345,32 +358,33 @@ CMSWindowsScreen::leave()
m_isOnScreen = false;
forceShowCursor();
if (isDraggingStarted()) {
CString& draggingFilename = getDraggingFilename();
size_t size = draggingFilename.size();
if (isDraggingStarted() && !m_isPrimary) {
m_sendDragThread = new CThread(
new TMethodJob<CMSWindowsScreen>(
this,
&CMSWindowsScreen::sendDragThread));
}
if (!m_isPrimary) {
// TODO: fake these keys properly
fakeKeyDown(kKeyEscape, 8192, 1);
fakeKeyUp(1);
return true;
}
fakeMouseButton(kButtonLeft, false);
void
CMSWindowsScreen::sendDragThread(void*)
{
CString& draggingFilename = getDraggingFilename();
size_t size = draggingFilename.size();
if (draggingFilename.empty() == false) {
CClientApp& app = CClientApp::instance();
CClient* client = app.getClientPtr();
UInt32 fileCount = 1;
LOG((CLOG_DEBUG "send dragging info to server: %s", draggingFilename.c_str()));
client->draggingInfoSending(fileCount, draggingFilename, size);
LOG((CLOG_DEBUG "send dragging file to server"));
client->sendFileToServer(draggingFilename.c_str());
}
}
m_draggingStarted = false;
if (draggingFilename.empty() == false) {
CClientApp& app = CClientApp::instance();
CClient* client = app.getClientPtr();
UInt32 fileCount = 1;
LOG((CLOG_DEBUG "send dragging info to server: %s", draggingFilename.c_str()));
client->draggingInfoSending(fileCount, draggingFilename, size);
LOG((CLOG_DEBUG "send dragging file to server"));
client->sendFileToServer(draggingFilename.c_str());
}
return true;
m_draggingStarted = false;
}
bool
@@ -858,6 +872,29 @@ CMSWindowsScreen::createWindow(ATOM windowClass, const char* name) const
return window;
}
HWND
CMSWindowsScreen::createDropWindow(ATOM windowClass, const char* name) const
{
HWND window = CreateWindowEx(
WS_EX_TOPMOST |
WS_EX_TRANSPARENT |
WS_EX_ACCEPTFILES,
reinterpret_cast<LPCTSTR>(m_class),
name,
WS_POPUP,
0, 0, m_dropWindowSize, m_dropWindowSize,
NULL, NULL,
s_windowInstance,
NULL);
if (window == NULL) {
LOG((CLOG_ERR "failed to create drop window: %d", GetLastError()));
throw XScreenOpenFailure();
}
return window;
}
void
CMSWindowsScreen::destroyWindow(HWND hwnd) const
{
@@ -1801,9 +1838,48 @@ CString&
CMSWindowsScreen::getDraggingFilename()
{
if (m_draggingStarted) {
char filename[MAX_PATH];
m_shellEx.getDraggingFilename(filename);
m_draggingFilename = filename;
m_dropTarget->clearDraggingFilename();
m_draggingFilename.clear();
int halfSize = m_dropWindowSize / 2;
SInt32 xPos = m_isPrimary ? m_xCursor : m_xCenter;
SInt32 yPos = m_isPrimary ? m_yCursor : m_yCenter;
xPos = (xPos - halfSize) < 0 ? 0 : xPos - halfSize;
yPos = (yPos - halfSize) < 0 ? 0 : yPos - halfSize;
SetWindowPos(
m_dropWindow,
HWND_TOPMOST,
xPos,
yPos,
m_dropWindowSize,
m_dropWindowSize,
SWP_SHOWWINDOW);
// TODO: fake these keys properly
fakeKeyDown(kKeyEscape, 8192, 1);
fakeKeyUp(1);
fakeMouseButton(kButtonLeft, false);
CString filename;
DOUBLE timeout = ARCH->time() + .5f;
while (ARCH->time() < timeout) {
ARCH->sleep(.05f);
filename = m_dropTarget->getDraggingFilename();
if (!filename.empty()) {
break;
}
}
ShowWindow(m_dropWindow, SW_HIDE);
if (!filename.empty()) {
m_draggingFilename = filename;
}
if (m_draggingFilename.empty()) {
LOG((CLOG_DEBUG "failed to get drag file name from OLE"));
}
}
return m_draggingFilename;