Changeset 451 for trunk/src

Timestamp:

Jan 20, 2010, 12:56:59 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

gui: DnD: Support changing the DnD operation (Copy, Move, Link) on the fly, e.g. after the DnD session was started.

File:

• trunk/src/gui/kernel/qdnd_pm.cpp (modified) (27 diffs)

trunk/src/gui/kernel/qdnd_pm.cpp

@@ -292 +292 @@
 }
 
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 void QDragManager::init_sys()
 {
@@ -448 +497 @@
                     QDragEnterEvent dee(pnt,
                                         toQDragDropActions(dragData->supportedOps),
-                                        data, QApplication::mouseButtons(),
-                                        QApplication::keyboardModifiers());
+                                        data, mouseButtons(), keyboardModifiers());
                     dee.setDropAction(dragData->lastAction);
                     sendDropEvent(dragOverWidget, &dee);
@@ -469 +517 @@
                     QDragMoveEvent dme(pnt,
                                        toQDragDropActions(dragData->supportedOps),
-                                       data, QApplication::mouseButtons(),
-                                       QApplication::keyboardModifiers());
+                                       data, mouseButtons(), keyboardModifiers());
                     // accept by default, since enter event was accepted.
                     dme.setDropAction(dragData->lastAction);
@@ -549 +596 @@
             dragData->setDropped(true);
 
-            QDropEvent de(pnt, dragData->lastAction, data, QApplication::mouseButtons(),
-                          QApplication::keyboardModifiers());
+            QDropEvent de(pnt, dragData->lastAction, data, mouseButtons(),
+                          keyboardModifiers());
             if (dragData->lastDropReply == DOR_DROP)
                 de.setDropAction(dragData->lastAction);
@@ -651 +698 @@
     // QPMObjectWindow interface
     MRESULT message(ULONG msg, MPARAM mp1, MPARAM mp2);
-    
+
 private:
     QList<DragWorker*> workers;
@@ -667 +714 @@
     bool gotExcl = false; // got isExclusive() worker?
     bool skipExcl = false; // skip isExclusive() or itemCount() > 1 workers?
-    ULONG coopLevel = 0; // itemCount() level for !isExclusive() workers 
+    ULONG coopLevel = 0; // itemCount() level for !isExclusive() workers
 
     bool gotExclForMime = false;
@@ -734 +781 @@
             // target's side (where the first encountered drop worker
             // for the given RMF would be used for actual data transfer
-            // anyway). See also QClipboard::setData(). 
+            // anyway). See also QClipboard::setData().
             break;
         }
@@ -755 +802 @@
 
     // remove either all exclusive workers or all their fall-back workers
-    // (depending on skipExcl) and remove duplicates 
+    // (depending on skipExcl) and remove duplicates
     for (QList<DragWorker*>::iterator it = workers.begin();
          it < workers.end();) {
@@ -767 +814 @@
     }
 
-#if defined(QDND_DEBUG)            
+#if defined(QDND_DEBUG)
     foreach (DragWorker *wrk, workers) {
         DEBUG(() << "QPMCoopDragWorker: Will use worker" << wrk
                  << "( isExclusive" << wrk->isExclusive()
-                 << "itemCount" << wrk->itemCount() << ")"); 
+                 << "itemCount" << wrk->itemCount() << ")");
     }
 #endif
@@ -785 +832 @@
     if (!firstWorker)
         return 0;
-    
+
     if (firstWorker->isExclusive() && firstWorker->itemCount() == 0) {
         // this is a super exclusive worker that will do everything on its own
         return firstWorker->hwnd();
     }
-    
+
     return QPMObjectWindow::hwnd();
 }
@@ -806 +853 @@
 {
     bool moveDisallowed = false;
-    
+
     foreach(DragWorker *wrk, workers) {
         // disallow the Move operation if at least one worker asked so
@@ -837 +884 @@
         return firstWorker->createDragInfo(targetName, supportedOps);
     }
-    
+
     // note that all workers at this place require the same amount of items
     // (guaranteed by collectWorkers())
-    
+
     DEBUG(() << "QPMCoopDragWorker: itemCnt" << itemCnt);
 
@@ -847 +894 @@
     if (!info)
         return 0;
-    
+
     // collect all mechanism/format pairs
     QByteArray allFormats;
@@ -866 +913 @@
 
     static ULONG itemID = 0;
-    
+
     const char *type = 0;
     const char *ext = 0;
@@ -885 +932 @@
         else
             name = QString(QLatin1String("%1 %2")).arg(targetName).arg(i + 1);
-        
+
         if (ext) {
             name += QLatin1Char('.');
@@ -896 +943 @@
         // Note 1: DRAGITEM::hstrType is actually ignored by WPS,
         // only the target extension matters.
-        
+
         // Note 2: We're not required to fill in the hwndItem field because we
         // use the DC_PREPARE flag (to indicate it will be filled later, after
         // DM_RENDERPREPARE); however, Mozilla refuses to render if hwndItem
         // is initially 0. Set it to our HWND instead (we'll issue a warning if
-        // DM_RENDER or DM_ENDCONVERSATION is erroneously sent to us) 
+        // DM_RENDER or DM_ENDCONVERSATION is erroneously sent to us)
 
         item->hwndItem = hwnd();
@@ -915 +962 @@
         item->fsSupportedOps = supportedOps;
     }
-   
+
     if (!ok) {
         DrgFreeDraginfo(info);
         info = 0;
     }
-    
+
     return info;
 }
@@ -930 +977 @@
             DEBUG(() << "Drop target sent DM_RENDERPREPARE after the DnD "
                         "session is over!");
-            // free the given DRAGTRANSFER structure to avoud memory leak 
+            // free the given DRAGTRANSFER structure to avoud memory leak
             DRAGTRANSFER *xfer = (DRAGTRANSFER *)mp1;
             if (xfer)
@@ -936 +983 @@
             return (MRESULT)FALSE;
         }
-    
+
         DRAGTRANSFER *xfer = (DRAGTRANSFER *)mp1;
         Q_ASSERT(xfer && xfer->pditem);
         if (!xfer || !xfer->pditem)
             return (MRESULT)FALSE;
-        
+
         // find the item's index (ordinal number)
         ULONG itemCnt = DrgQueryDragitemCount(info);
@@ -948 +995 @@
             if (DrgQueryDragitemPtr(info, index) == xfer->pditem)
                 break;
-        
+
         Q_ASSERT(index < itemCnt);
         if (index >= itemCnt)
@@ -956 +1003 @@
                  << QPMMime::queryHSTR(xfer->hstrSelectedRMF) << "for item"
                  << index << "( id" << xfer->pditem->ulItemID << ")");
-        
+
         QByteArray drm, drf;
         if (!QPMMime::parseRMF(xfer->hstrSelectedRMF, drm, drf)) {
@@ -976 +1023 @@
         return (MRESULT)(xfer->pditem->hwndItem ? TRUE : FALSE);
     }
-    
+
     if (msg == DM_RENDER || msg == DM_ENDCONVERSATION) {
         DEBUG(() << "Drop target sent DM_RENDER or DM_ENDCONVERSATION to the "
                     "drag source window instead of the drag item window!");
         if (msg == DM_RENDER) {
-            // free the given DRAGTRANSFER structure to avoud memory leak 
+            // free the given DRAGTRANSFER structure to avoud memory leak
             DRAGTRANSFER *xfer = (DRAGTRANSFER *)mp1;
             if (xfer)
@@ -987 +1034 @@
         }
     }
-    
+
     return (MRESULT)FALSE;
 }
@@ -1014 +1061 @@
         ULONG msg = WinQuerySysValue(HWND_DESKTOP, SV_BEGINDRAG) & 0xFFFF;
         switch(msg) {
-            case WM_BUTTON1MOTIONSTART: vkTerminate = VK_BUTTON1; break; 
-            case WM_BUTTON2MOTIONSTART: vkTerminate = VK_BUTTON2; break; 
-            case WM_BUTTON3MOTIONSTART: vkTerminate = VK_BUTTON3; break; 
+            case WM_BUTTON1MOTIONSTART: vkTerminate = VK_BUTTON1; break;
+            case WM_BUTTON2MOTIONSTART: vkTerminate = VK_BUTTON2; break;
+            case WM_BUTTON3MOTIONSTART: vkTerminate = VK_BUTTON3; break;
         }
 
@@ -1042 +1089 @@
 
     static QPMCoopDragWorker dragWorker;
-    
+
     bool ok = dragWorker.collectWorkers(o);
     Q_ASSERT(ok);
@@ -1098 +1145 @@
     bool moveDisallowed = dragWorker.cleanup(beingCancelled || target == 0);
     dragWorker.src = 0;
-    
+
     moveDisallowed |= beingCancelled || target == 0 ||
                       info->usOperation != DO_MOVE;
@@ -1139 +1186 @@
     if (!object || beingCancelled)
         return;
-    
+
     beingCancelled = true;