Follow up patch to bug 183582.
This was requested in order to get sr= for the previous checkin. I'm checking this in as a separate step, to make the real logic change easier recognizable. This checkin does not change any logic. It only moves methods around in the file. sr=sfraser git-svn-id: svn://10.0.0.236/trunk@143820 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
kaie%netscape.com
@@ -120,6 +120,51 @@ NS_INTERFACE_MAP_BEGIN(nsContentAreaDragDrop)
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NS_INTERFACE_MAP_END
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class nsTransferableFactory
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{
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public:
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static nsresult CreateFromEvent(nsIDOMEvent* inMouseEvent, nsIFlavorDataProvider *inFlavorDataProvider,
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nsITransferable** outTrans);
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protected:
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nsTransferableFactory(nsIDOMEvent* inMouseEvent, nsIFlavorDataProvider *inFlavorDataProvider);
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nsresult Produce(nsITransferable** outTrans);
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private:
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nsresult ConvertStringsToTransferable(nsITransferable** outTrans);
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static nsresult GetDraggableSelectionData(nsISelection* inSelection, nsIDOMNode* inRealTargetNode,
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nsIDOMNode **outImageOrLinkNode, PRBool* outDragSelectedText);
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static void FindParentLinkNode(nsIDOMNode* inNode, nsIDOMNode** outParent);
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static void GetAnchorURL(nsIDOMNode* inNode, nsAString& outURL);
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static void GetNodeString(nsIDOMNode* inNode, nsAString & outNodeString);
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static nsresult GetImageFromDOMNode(nsIDOMNode* inNode, nsIImage** outImage);
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static void CreateLinkText(const nsAString& inURL, const nsAString & inText,
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nsAString& outLinkText);
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static void FindFirstAnchor(nsIDOMNode* inNode, nsIDOMNode** outAnchor);
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enum serializationMode {serializeAsText, serializeAsHTML};
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// if inNode is null, use the selection from the window
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static nsresult SerializeNodeOrSelection(serializationMode inMode, PRUint32 inFlags,
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nsIDOMWindow* inWindow, nsIDOMNode* inNode, nsAString& outResultString,
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nsAString& outHTMLContext, nsAString& outHTMLInfo);
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PRBool mInstanceAlreadyUsed;
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nsCOMPtr<nsIDOMEvent> mMouseEvent;
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nsCOMPtr<nsIFlavorDataProvider> mFlavorDataProvider;
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nsString mUrlString;
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nsString mImageSourceString;
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nsString mTitleString;
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nsString mHtmlString; // will be filled automatically if you fill urlstring
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nsString mContextString;
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nsString mInfoString;
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PRBool mIsAnchor;
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nsCOMPtr<nsIImage> mImage;
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};
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//
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// nsContentAreaDragDrop ctor
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//
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@@ -435,49 +480,316 @@ nsContentAreaDragDrop::DragDrop(nsIDOMEvent* inMouseEvent)
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return NS_OK;
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}
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class nsTransferableFactory
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//
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// NormalizeSelection
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//
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void
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nsContentAreaDragDrop::NormalizeSelection(nsIDOMNode* inBaseNode, nsISelection* inSelection)
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{
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public:
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static nsresult CreateFromEvent(nsIDOMEvent* inMouseEvent, nsIFlavorDataProvider *inFlavorDataProvider,
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nsITransferable** outTrans);
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nsCOMPtr<nsIDOMNode> parent;
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inBaseNode->GetParentNode(getter_AddRefs(parent));
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if ( !parent || !inSelection )
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return;
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protected:
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nsTransferableFactory(nsIDOMEvent* inMouseEvent, nsIFlavorDataProvider *inFlavorDataProvider);
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nsresult Produce(nsITransferable** outTrans);
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nsCOMPtr<nsIDOMNodeList> childNodes;
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parent->GetChildNodes(getter_AddRefs(childNodes));
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if ( !childNodes )
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return;
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PRUint32 listLen = 0;
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childNodes->GetLength(&listLen);
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PRUint32 index = 0;
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for ( ; index < listLen; ++index ) {
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nsCOMPtr<nsIDOMNode> indexedNode;
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childNodes->Item(index, getter_AddRefs(indexedNode));
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if ( indexedNode == inBaseNode )
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break;
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}
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if ( index >= listLen )
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return;
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// now make the selection contain all of |inBaseNode|'s siblings up to and including
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// |inBaseNode|
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inSelection->Collapse(parent, index);
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inSelection->Extend(parent, index+1);
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}
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private:
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nsresult ConvertStringsToTransferable(nsITransferable** outTrans);
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static nsresult GetDraggableSelectionData(nsISelection* inSelection, nsIDOMNode* inRealTargetNode,
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nsIDOMNode **outImageOrLinkNode, PRBool* outDragSelectedText);
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static void FindParentLinkNode(nsIDOMNode* inNode, nsIDOMNode** outParent);
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static void GetAnchorURL(nsIDOMNode* inNode, nsAString& outURL);
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static void GetNodeString(nsIDOMNode* inNode, nsAString & outNodeString);
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static nsresult GetImageFromDOMNode(nsIDOMNode* inNode, nsIImage** outImage);
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static void CreateLinkText(const nsAString& inURL, const nsAString & inText,
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nsAString& outLinkText);
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static void FindFirstAnchor(nsIDOMNode* inNode, nsIDOMNode** outAnchor);
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enum serializationMode {serializeAsText, serializeAsHTML};
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// if inNode is null, use the selection from the window
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static nsresult SerializeNodeOrSelection(serializationMode inMode, PRUint32 inFlags,
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nsIDOMWindow* inWindow, nsIDOMNode* inNode, nsAString& outResultString,
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nsAString& outHTMLContext, nsAString& outHTMLInfo);
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//
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// GetEventDocument
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//
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// Get the DOM document associated with a given DOM event
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//
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void
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nsContentAreaDragDrop::GetEventDocument(nsIDOMEvent* inEvent, nsIDOMDocument** outDocument)
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{
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if ( !outDocument )
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return;
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*outDocument = nsnull;
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nsCOMPtr<nsIDOMUIEvent> uiEvent(do_QueryInterface(inEvent));
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if ( uiEvent ) {
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nsCOMPtr<nsIDOMAbstractView> view;
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uiEvent->GetView(getter_AddRefs(view));
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nsCOMPtr<nsIDOMWindow> window(do_QueryInterface(view));
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if ( window )
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window->GetDocument(outDocument);
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}
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}
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PRBool mInstanceAlreadyUsed;
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nsresult
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nsContentAreaDragDrop::CreateTransferable(nsIDOMEvent* inMouseEvent, nsITransferable** outTrans)
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{
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return nsTransferableFactory::CreateFromEvent(inMouseEvent,
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NS_STATIC_CAST(nsIFlavorDataProvider*, this),
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outTrans);
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}
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nsCOMPtr<nsIDOMEvent> mMouseEvent;
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nsCOMPtr<nsIFlavorDataProvider> mFlavorDataProvider;
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nsresult
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nsContentAreaDragDrop::GetHookEnumeratorFromEvent(nsIDOMEvent* inEvent,
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nsISimpleEnumerator **outEnumerator)
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{
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*outEnumerator = nsnull;
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nsString mUrlString;
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nsString mImageSourceString;
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nsString mTitleString;
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nsString mHtmlString; // will be filled automatically if you fill urlstring
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nsString mContextString;
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nsString mInfoString;
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nsCOMPtr<nsIDOMDocument> domdoc;
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GetEventDocument(inEvent, getter_AddRefs(domdoc));
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nsCOMPtr<nsIDocument> doc = do_QueryInterface(domdoc);
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NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
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nsCOMPtr<nsISupports> isupp;
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doc->GetContainer(getter_AddRefs(isupp));
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nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(isupp);
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NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
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nsCOMPtr<nsIClipboardDragDropHookList> hookList = do_GetInterface(docShell);
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NS_ENSURE_TRUE(hookList, NS_ERROR_FAILURE);
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nsCOMPtr<nsISimpleEnumerator> enumerator;
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hookList->GetHookEnumerator(getter_AddRefs(enumerator));
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NS_ENSURE_TRUE(enumerator, NS_ERROR_FAILURE);
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*outEnumerator = enumerator;
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NS_ADDREF(*outEnumerator);
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return NS_OK;
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}
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//
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// DragGesture
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//
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// Determine if the user has started to drag something and kick off
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// an OS-level drag if it's applicable
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//
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NS_IMETHODIMP
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nsContentAreaDragDrop::DragGesture(nsIDOMEvent* inMouseEvent)
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{
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// first check that someone hasn't already handled this event
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PRBool preventDefault = PR_TRUE;
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nsCOMPtr<nsIDOMNSUIEvent> nsuiEvent(do_QueryInterface(inMouseEvent));
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if ( nsuiEvent )
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nsuiEvent->GetPreventDefault(&preventDefault);
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if ( preventDefault )
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return NS_OK;
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// if the client has provided an override callback, check if we
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// should continue
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nsCOMPtr<nsISimpleEnumerator> enumerator;
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GetHookEnumeratorFromEvent(inMouseEvent, getter_AddRefs(enumerator));
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if (enumerator) {
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PRBool allow = PR_TRUE;
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PRBool hasMoreHooks = PR_FALSE;
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while (NS_SUCCEEDED(enumerator->HasMoreElements(&hasMoreHooks))
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&& hasMoreHooks) {
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nsCOMPtr<nsISupports> isupp;
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if (NS_FAILED(enumerator->GetNext(getter_AddRefs(isupp))))
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break;
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nsCOMPtr<nsIClipboardDragDropHooks> override = do_QueryInterface(isupp);
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if (override) {
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nsresult hookResult = override->AllowStartDrag(inMouseEvent, &allow);
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NS_ASSERTION(NS_SUCCEEDED(hookResult), "hook failure in AllowStartDrag");
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if (!allow)
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return NS_OK;
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}
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}
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}
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nsCOMPtr<nsITransferable> trans;
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nsresult rv = CreateTransferable(inMouseEvent, getter_AddRefs(trans));
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if (NS_FAILED(rv))
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return rv;
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if ( trans ) {
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// if the client has provided an override callback, let them manipulate
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// the flavors or drag data
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nsCOMPtr<nsISimpleEnumerator> enumerator;
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GetHookEnumeratorFromEvent(inMouseEvent, getter_AddRefs(enumerator));
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if (enumerator)
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{
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PRBool hasMoreHooks = PR_FALSE;
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PRBool doContinueDrag = PR_TRUE;
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while (NS_SUCCEEDED(enumerator->HasMoreElements(&hasMoreHooks))
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&& hasMoreHooks)
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{
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nsCOMPtr<nsISupports> isupp;
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if (NS_FAILED(enumerator->GetNext(getter_AddRefs(isupp))))
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break;
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nsCOMPtr<nsIClipboardDragDropHooks> override = do_QueryInterface(isupp);
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if (override)
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{
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nsresult hookResult = override->OnCopyOrDrag(inMouseEvent, trans, &doContinueDrag);
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NS_ASSERTION(NS_SUCCEEDED(hookResult), "hook failure in OnCopyOrDrag");
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if (!doContinueDrag)
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return NS_OK;
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}
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}
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}
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nsCOMPtr<nsISupportsArray> transArray(do_CreateInstance("@mozilla.org/supports-array;1"));
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if ( !transArray )
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return NS_ERROR_FAILURE;
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transArray->InsertElementAt(trans, 0);
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// kick off the drag
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nsCOMPtr<nsIDOMEventTarget> target;
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inMouseEvent->GetTarget(getter_AddRefs(target));
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nsCOMPtr<nsIDOMNode> targetNode(do_QueryInterface(target));
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nsCOMPtr<nsIDragService> dragService(do_GetService("@mozilla.org/widget/dragservice;1"));
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if ( !dragService )
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return NS_ERROR_FAILURE;
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dragService->InvokeDragSession(targetNode, transArray, nsnull, nsIDragService::DRAGDROP_ACTION_COPY +
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nsIDragService::DRAGDROP_ACTION_MOVE + nsIDragService::DRAGDROP_ACTION_LINK);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsContentAreaDragDrop::HandleEvent(nsIDOMEvent *event)
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{
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return NS_OK;
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}
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#if 0
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#pragma mark -
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#endif
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// SaveURIToFile
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// used on platforms where it's possible to drag items (e.g. images)
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// into the file system
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nsresult
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nsContentAreaDragDrop::SaveURIToFileInDirectory(nsAString& inSourceURIString, nsILocalFile* inDestDirectory, nsILocalFile** outFile)
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{
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*outFile = nsnull;
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nsresult rv;
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// clone it because it belongs to the drag data, so we shouldn't mess with it
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nsCOMPtr<nsIFile> clonedFile;
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rv = inDestDirectory->Clone(getter_AddRefs(clonedFile));
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsILocalFile> destFile = do_QueryInterface(clonedFile);
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if (!destFile) return NS_ERROR_NO_INTERFACE;
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nsCOMPtr<nsIURI> sourceURI;
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rv = NS_NewURI(getter_AddRefs(sourceURI), inSourceURIString);
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if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
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nsCOMPtr<nsIURL> sourceURL = do_QueryInterface(sourceURI);
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if (!sourceURL) return NS_ERROR_NO_INTERFACE;
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nsCAutoString fileName; // escaped, UTF-8
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sourceURL->GetFileName(fileName);
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if (fileName.IsEmpty())
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return NS_ERROR_FAILURE; // this is an error; the URL must point to a file
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NS_UnescapeURL(fileName);
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NS_ConvertUTF8toUCS2 wideFileName(fileName);
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// make the name safe for the filesystem
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wideFileName.ReplaceChar(PRUnichar('/'), PRUnichar('_'));
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wideFileName.ReplaceChar(PRUnichar('\\'), PRUnichar('_'));
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wideFileName.ReplaceChar(PRUnichar(':'), PRUnichar('_'));
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rv = destFile->Append(wideFileName);
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if (NS_FAILED(rv)) return rv;
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rv = destFile->CreateUnique(nsIFile::NORMAL_FILE_TYPE, 0600);
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if (NS_FAILED(rv)) return rv;
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// we rely on the fact that the WPB is refcounted by the channel etc,
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// so we don't keep a ref to it. It will die when finished.
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nsCOMPtr<nsIWebBrowserPersist> persist = do_CreateInstance("@mozilla.org/embedding/browser/nsWebBrowserPersist;1", &rv);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsISupports> fileAsSupports = do_QueryInterface(destFile);
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rv = persist->SaveURI(sourceURI, nsnull, nsnull, nsnull, nsnull, fileAsSupports);
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if (NS_FAILED(rv)) return rv;
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*outFile = destFile;
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NS_ADDREF(*outFile);
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return NS_OK;
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}
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// This is our nsIFlavorDataProvider callback. There are several assumptions here that
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// make this work:
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//
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// 1. Someone put a kFilePromiseURLMime flavor into the transferable with the source
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// URI of the file to save (as a string). We did that above.
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//
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// 2. Someone put a kFilePromiseDirectoryMime flavor into the transferable with
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// an nsILocalFile for the directory we are to save in. That has to be done
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// by platform-specific code (in widget), which gets the destination directory
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// from OS-specific drag information.
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//
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NS_IMETHODIMP
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nsContentAreaDragDrop::GetFlavorData(nsITransferable *aTransferable,
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const char *aFlavor, nsISupports **aData, PRUint32 *aDataLen)
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{
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NS_ENSURE_ARG_POINTER(aData && aDataLen);
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*aData = nsnull;
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*aDataLen = 0;
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nsresult rv = NS_ERROR_NOT_IMPLEMENTED;
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if (strcmp(aFlavor, kFilePromiseMime) == 0)
|
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{
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// get the URI from the kFilePromiseURLMime flavor
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NS_ENSURE_ARG(aTransferable);
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nsCOMPtr<nsISupports> urlPrimitive;
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PRUint32 dataSize = 0;
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aTransferable->GetTransferData(kFilePromiseURLMime, getter_AddRefs(urlPrimitive), &dataSize);
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nsCOMPtr<nsISupportsString> srcUrlPrimitive = do_QueryInterface(urlPrimitive);
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if (!srcUrlPrimitive) return NS_ERROR_FAILURE;
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|
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nsAutoString sourceURLString;
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srcUrlPrimitive->GetData(sourceURLString);
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if (sourceURLString.IsEmpty())
|
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return NS_ERROR_FAILURE;
|
||||
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||||
// get the target directory from the kFilePromiseDirectoryMime flavor
|
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nsCOMPtr<nsISupports> dirPrimitive;
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dataSize = 0;
|
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aTransferable->GetTransferData(kFilePromiseDirectoryMime, getter_AddRefs(dirPrimitive), &dataSize);
|
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nsCOMPtr<nsILocalFile> destDirectory = do_QueryInterface(dirPrimitive);
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if (!destDirectory) return NS_ERROR_FAILURE;
|
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|
||||
// now save the file
|
||||
nsCOMPtr<nsILocalFile> destFile;
|
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rv = SaveURIToFileInDirectory(sourceURLString, destDirectory, getter_AddRefs(destFile));
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||||
|
||||
// send back an nsILocalFile
|
||||
if (NS_SUCCEEDED(rv))
|
||||
{
|
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CallQueryInterface(destFile, aData);
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*aDataLen = sizeof(nsILocalFile*);
|
||||
}
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
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||||
|
||||
PRBool mIsAnchor;
|
||||
nsCOMPtr<nsIImage> mImage;
|
||||
};
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||||
|
||||
nsresult
|
||||
nsTransferableFactory::CreateFromEvent(nsIDOMEvent* inMouseEvent, nsIFlavorDataProvider *inFlavorDataProvider,
|
||||
@@ -743,62 +1055,6 @@ nsTransferableFactory::GetNodeString(nsIDOMNode* inNode, nsAString & outNodeStri
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// NormalizeSelection
|
||||
//
|
||||
void
|
||||
nsContentAreaDragDrop::NormalizeSelection(nsIDOMNode* inBaseNode, nsISelection* inSelection)
|
||||
{
|
||||
nsCOMPtr<nsIDOMNode> parent;
|
||||
inBaseNode->GetParentNode(getter_AddRefs(parent));
|
||||
if ( !parent || !inSelection )
|
||||
return;
|
||||
|
||||
nsCOMPtr<nsIDOMNodeList> childNodes;
|
||||
parent->GetChildNodes(getter_AddRefs(childNodes));
|
||||
if ( !childNodes )
|
||||
return;
|
||||
PRUint32 listLen = 0;
|
||||
childNodes->GetLength(&listLen);
|
||||
PRUint32 index = 0;
|
||||
for ( ; index < listLen; ++index ) {
|
||||
nsCOMPtr<nsIDOMNode> indexedNode;
|
||||
childNodes->Item(index, getter_AddRefs(indexedNode));
|
||||
if ( indexedNode == inBaseNode )
|
||||
break;
|
||||
}
|
||||
if ( index >= listLen )
|
||||
return;
|
||||
|
||||
// now make the selection contain all of |inBaseNode|'s siblings up to and including
|
||||
// |inBaseNode|
|
||||
inSelection->Collapse(parent, index);
|
||||
inSelection->Extend(parent, index+1);
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// GetEventDocument
|
||||
//
|
||||
// Get the DOM document associated with a given DOM event
|
||||
//
|
||||
void
|
||||
nsContentAreaDragDrop::GetEventDocument(nsIDOMEvent* inEvent, nsIDOMDocument** outDocument)
|
||||
{
|
||||
if ( !outDocument )
|
||||
return;
|
||||
*outDocument = nsnull;
|
||||
|
||||
nsCOMPtr<nsIDOMUIEvent> uiEvent(do_QueryInterface(inEvent));
|
||||
if ( uiEvent ) {
|
||||
nsCOMPtr<nsIDOMAbstractView> view;
|
||||
uiEvent->GetView(getter_AddRefs(view));
|
||||
nsCOMPtr<nsIDOMWindow> window(do_QueryInterface(view));
|
||||
if ( window )
|
||||
window->GetDocument(outDocument);
|
||||
}
|
||||
}
|
||||
|
||||
nsresult
|
||||
nsTransferableFactory::Produce(nsITransferable** outTrans)
|
||||
{
|
||||
@@ -1123,138 +1379,6 @@ nsTransferableFactory::ConvertStringsToTransferable(nsITransferable** outTrans)
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
nsresult
|
||||
nsContentAreaDragDrop::CreateTransferable(nsIDOMEvent* inMouseEvent, nsITransferable** outTrans)
|
||||
{
|
||||
return nsTransferableFactory::CreateFromEvent(inMouseEvent,
|
||||
NS_STATIC_CAST(nsIFlavorDataProvider*, this),
|
||||
outTrans);
|
||||
}
|
||||
|
||||
nsresult
|
||||
nsContentAreaDragDrop::GetHookEnumeratorFromEvent(nsIDOMEvent* inEvent,
|
||||
nsISimpleEnumerator **outEnumerator)
|
||||
{
|
||||
*outEnumerator = nsnull;
|
||||
|
||||
nsCOMPtr<nsIDOMDocument> domdoc;
|
||||
GetEventDocument(inEvent, getter_AddRefs(domdoc));
|
||||
nsCOMPtr<nsIDocument> doc = do_QueryInterface(domdoc);
|
||||
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
|
||||
|
||||
nsCOMPtr<nsISupports> isupp;
|
||||
doc->GetContainer(getter_AddRefs(isupp));
|
||||
nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(isupp);
|
||||
NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
|
||||
|
||||
nsCOMPtr<nsIClipboardDragDropHookList> hookList = do_GetInterface(docShell);
|
||||
NS_ENSURE_TRUE(hookList, NS_ERROR_FAILURE);
|
||||
nsCOMPtr<nsISimpleEnumerator> enumerator;
|
||||
hookList->GetHookEnumerator(getter_AddRefs(enumerator));
|
||||
NS_ENSURE_TRUE(enumerator, NS_ERROR_FAILURE);
|
||||
|
||||
*outEnumerator = enumerator;
|
||||
NS_ADDREF(*outEnumerator);
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
//
|
||||
// DragGesture
|
||||
//
|
||||
// Determine if the user has started to drag something and kick off
|
||||
// an OS-level drag if it's applicable
|
||||
//
|
||||
NS_IMETHODIMP
|
||||
nsContentAreaDragDrop::DragGesture(nsIDOMEvent* inMouseEvent)
|
||||
{
|
||||
// first check that someone hasn't already handled this event
|
||||
PRBool preventDefault = PR_TRUE;
|
||||
nsCOMPtr<nsIDOMNSUIEvent> nsuiEvent(do_QueryInterface(inMouseEvent));
|
||||
if ( nsuiEvent )
|
||||
nsuiEvent->GetPreventDefault(&preventDefault);
|
||||
if ( preventDefault )
|
||||
return NS_OK;
|
||||
|
||||
// if the client has provided an override callback, check if we
|
||||
// should continue
|
||||
nsCOMPtr<nsISimpleEnumerator> enumerator;
|
||||
GetHookEnumeratorFromEvent(inMouseEvent, getter_AddRefs(enumerator));
|
||||
if (enumerator) {
|
||||
PRBool allow = PR_TRUE;
|
||||
PRBool hasMoreHooks = PR_FALSE;
|
||||
while (NS_SUCCEEDED(enumerator->HasMoreElements(&hasMoreHooks))
|
||||
&& hasMoreHooks) {
|
||||
nsCOMPtr<nsISupports> isupp;
|
||||
if (NS_FAILED(enumerator->GetNext(getter_AddRefs(isupp))))
|
||||
break;
|
||||
nsCOMPtr<nsIClipboardDragDropHooks> override = do_QueryInterface(isupp);
|
||||
if (override) {
|
||||
nsresult hookResult = override->AllowStartDrag(inMouseEvent, &allow);
|
||||
NS_ASSERTION(NS_SUCCEEDED(hookResult), "hook failure in AllowStartDrag");
|
||||
if (!allow)
|
||||
return NS_OK;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
nsCOMPtr<nsITransferable> trans;
|
||||
nsresult rv = CreateTransferable(inMouseEvent, getter_AddRefs(trans));
|
||||
if (NS_FAILED(rv))
|
||||
return rv;
|
||||
|
||||
if ( trans ) {
|
||||
// if the client has provided an override callback, let them manipulate
|
||||
// the flavors or drag data
|
||||
nsCOMPtr<nsISimpleEnumerator> enumerator;
|
||||
GetHookEnumeratorFromEvent(inMouseEvent, getter_AddRefs(enumerator));
|
||||
if (enumerator)
|
||||
{
|
||||
PRBool hasMoreHooks = PR_FALSE;
|
||||
PRBool doContinueDrag = PR_TRUE;
|
||||
while (NS_SUCCEEDED(enumerator->HasMoreElements(&hasMoreHooks))
|
||||
&& hasMoreHooks)
|
||||
{
|
||||
nsCOMPtr<nsISupports> isupp;
|
||||
if (NS_FAILED(enumerator->GetNext(getter_AddRefs(isupp))))
|
||||
break;
|
||||
nsCOMPtr<nsIClipboardDragDropHooks> override = do_QueryInterface(isupp);
|
||||
if (override)
|
||||
{
|
||||
nsresult hookResult = override->OnCopyOrDrag(inMouseEvent, trans, &doContinueDrag);
|
||||
NS_ASSERTION(NS_SUCCEEDED(hookResult), "hook failure in OnCopyOrDrag");
|
||||
if (!doContinueDrag)
|
||||
return NS_OK;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
nsCOMPtr<nsISupportsArray> transArray(do_CreateInstance("@mozilla.org/supports-array;1"));
|
||||
if ( !transArray )
|
||||
return NS_ERROR_FAILURE;
|
||||
transArray->InsertElementAt(trans, 0);
|
||||
|
||||
// kick off the drag
|
||||
nsCOMPtr<nsIDOMEventTarget> target;
|
||||
inMouseEvent->GetTarget(getter_AddRefs(target));
|
||||
nsCOMPtr<nsIDOMNode> targetNode(do_QueryInterface(target));
|
||||
nsCOMPtr<nsIDragService> dragService(do_GetService("@mozilla.org/widget/dragservice;1"));
|
||||
if ( !dragService )
|
||||
return NS_ERROR_FAILURE;
|
||||
dragService->InvokeDragSession(targetNode, transArray, nsnull, nsIDragService::DRAGDROP_ACTION_COPY +
|
||||
nsIDragService::DRAGDROP_ACTION_MOVE + nsIDragService::DRAGDROP_ACTION_LINK);
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsContentAreaDragDrop::HandleEvent(nsIDOMEvent *event)
|
||||
{
|
||||
return NS_OK;
|
||||
|
||||
}
|
||||
|
||||
// static
|
||||
// note that this can return NS_OK, but a null out param (by design)
|
||||
nsresult nsTransferableFactory::GetDraggableSelectionData(nsISelection* inSelection,
|
||||
@@ -1455,126 +1579,3 @@ nsTransferableFactory::GetImageFromDOMNode(nsIDOMNode* inNode, nsIImage**outImag
|
||||
return CallGetInterface(ir.get(), outImage);
|
||||
}
|
||||
|
||||
#if 0
|
||||
#pragma mark -
|
||||
#endif
|
||||
|
||||
// SaveURIToFile
|
||||
// used on platforms where it's possible to drag items (e.g. images)
|
||||
// into the file system
|
||||
nsresult
|
||||
nsContentAreaDragDrop::SaveURIToFileInDirectory(nsAString& inSourceURIString, nsILocalFile* inDestDirectory, nsILocalFile** outFile)
|
||||
{
|
||||
*outFile = nsnull;
|
||||
|
||||
nsresult rv;
|
||||
|
||||
// clone it because it belongs to the drag data, so we shouldn't mess with it
|
||||
nsCOMPtr<nsIFile> clonedFile;
|
||||
rv = inDestDirectory->Clone(getter_AddRefs(clonedFile));
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
nsCOMPtr<nsILocalFile> destFile = do_QueryInterface(clonedFile);
|
||||
if (!destFile) return NS_ERROR_NO_INTERFACE;
|
||||
|
||||
nsCOMPtr<nsIURI> sourceURI;
|
||||
rv = NS_NewURI(getter_AddRefs(sourceURI), inSourceURIString);
|
||||
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
|
||||
|
||||
nsCOMPtr<nsIURL> sourceURL = do_QueryInterface(sourceURI);
|
||||
if (!sourceURL) return NS_ERROR_NO_INTERFACE;
|
||||
|
||||
nsCAutoString fileName; // escaped, UTF-8
|
||||
sourceURL->GetFileName(fileName);
|
||||
|
||||
if (fileName.IsEmpty())
|
||||
return NS_ERROR_FAILURE; // this is an error; the URL must point to a file
|
||||
|
||||
NS_UnescapeURL(fileName);
|
||||
NS_ConvertUTF8toUCS2 wideFileName(fileName);
|
||||
|
||||
// make the name safe for the filesystem
|
||||
wideFileName.ReplaceChar(PRUnichar('/'), PRUnichar('_'));
|
||||
wideFileName.ReplaceChar(PRUnichar('\\'), PRUnichar('_'));
|
||||
wideFileName.ReplaceChar(PRUnichar(':'), PRUnichar('_'));
|
||||
|
||||
rv = destFile->Append(wideFileName);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
rv = destFile->CreateUnique(nsIFile::NORMAL_FILE_TYPE, 0600);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
// we rely on the fact that the WPB is refcounted by the channel etc,
|
||||
// so we don't keep a ref to it. It will die when finished.
|
||||
nsCOMPtr<nsIWebBrowserPersist> persist = do_CreateInstance("@mozilla.org/embedding/browser/nsWebBrowserPersist;1", &rv);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
nsCOMPtr<nsISupports> fileAsSupports = do_QueryInterface(destFile);
|
||||
rv = persist->SaveURI(sourceURI, nsnull, nsnull, nsnull, nsnull, fileAsSupports);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
*outFile = destFile;
|
||||
NS_ADDREF(*outFile);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
// This is our nsIFlavorDataProvider callback. There are several assumptions here that
|
||||
// make this work:
|
||||
//
|
||||
// 1. Someone put a kFilePromiseURLMime flavor into the transferable with the source
|
||||
// URI of the file to save (as a string). We did that above.
|
||||
//
|
||||
// 2. Someone put a kFilePromiseDirectoryMime flavor into the transferable with
|
||||
// an nsILocalFile for the directory we are to save in. That has to be done
|
||||
// by platform-specific code (in widget), which gets the destination directory
|
||||
// from OS-specific drag information.
|
||||
//
|
||||
NS_IMETHODIMP
|
||||
nsContentAreaDragDrop::GetFlavorData(nsITransferable *aTransferable,
|
||||
const char *aFlavor, nsISupports **aData, PRUint32 *aDataLen)
|
||||
{
|
||||
NS_ENSURE_ARG_POINTER(aData && aDataLen);
|
||||
*aData = nsnull;
|
||||
*aDataLen = 0;
|
||||
|
||||
nsresult rv = NS_ERROR_NOT_IMPLEMENTED;
|
||||
|
||||
if (strcmp(aFlavor, kFilePromiseMime) == 0)
|
||||
{
|
||||
// get the URI from the kFilePromiseURLMime flavor
|
||||
NS_ENSURE_ARG(aTransferable);
|
||||
nsCOMPtr<nsISupports> urlPrimitive;
|
||||
PRUint32 dataSize = 0;
|
||||
aTransferable->GetTransferData(kFilePromiseURLMime, getter_AddRefs(urlPrimitive), &dataSize);
|
||||
nsCOMPtr<nsISupportsString> srcUrlPrimitive = do_QueryInterface(urlPrimitive);
|
||||
if (!srcUrlPrimitive) return NS_ERROR_FAILURE;
|
||||
|
||||
nsAutoString sourceURLString;
|
||||
srcUrlPrimitive->GetData(sourceURLString);
|
||||
if (sourceURLString.IsEmpty())
|
||||
return NS_ERROR_FAILURE;
|
||||
|
||||
// get the target directory from the kFilePromiseDirectoryMime flavor
|
||||
nsCOMPtr<nsISupports> dirPrimitive;
|
||||
dataSize = 0;
|
||||
aTransferable->GetTransferData(kFilePromiseDirectoryMime, getter_AddRefs(dirPrimitive), &dataSize);
|
||||
nsCOMPtr<nsILocalFile> destDirectory = do_QueryInterface(dirPrimitive);
|
||||
if (!destDirectory) return NS_ERROR_FAILURE;
|
||||
|
||||
// now save the file
|
||||
nsCOMPtr<nsILocalFile> destFile;
|
||||
rv = SaveURIToFileInDirectory(sourceURLString, destDirectory, getter_AddRefs(destFile));
|
||||
|
||||
// send back an nsILocalFile
|
||||
if (NS_SUCCEEDED(rv))
|
||||
{
|
||||
CallQueryInterface(destFile, aData);
|
||||
*aDataLen = sizeof(nsILocalFile*);
|
||||
}
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user