mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-01-11 14:28:42 +00:00
Added mouse DOM listener to listen for context menu events and notify the embedding client. b=48270 a=valeski
This commit is contained in:
locka%iol.ie
parent
8dc8cb2777
commit
9ea803e364
@ -1,4 +1,4 @@
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/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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@ -30,8 +30,18 @@
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#include "nsHTMLReflowState.h"
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// Interfaces needed to be included
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#include "nsIContextMenuListener.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMDocumentType.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMEvent.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIDOMMouseEvent.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIDOMNamedNodeMap.h"
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#include "nsIDOMHTMLElement.h"
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#include "nsIPresShell.h"
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// CIDs
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@ -40,7 +50,8 @@
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//*** nsDocShellTreeOwner: Object Management
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//*****************************************************************************
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nsDocShellTreeOwner::nsDocShellTreeOwner() : mWebBrowser(nsnull),
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nsDocShellTreeOwner::nsDocShellTreeOwner() :
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mWebBrowser(nsnull),
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mTreeOwner(nsnull),
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mPrimaryContentShell(nsnull),
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mWebBrowserChrome(nsnull),
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@ -63,11 +74,14 @@ NS_IMPL_ADDREF(nsDocShellTreeOwner)
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NS_IMPL_RELEASE(nsDocShellTreeOwner)
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NS_INTERFACE_MAP_BEGIN(nsDocShellTreeOwner)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDocShellTreeOwner)
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NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeOwner)
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NS_INTERFACE_MAP_ENTRY(nsIBaseWindow)
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NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
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NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDocShellTreeOwner)
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NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeOwner)
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NS_INTERFACE_MAP_ENTRY(nsIBaseWindow)
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NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
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NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
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NS_INTERFACE_MAP_ENTRY(nsIDOMEventListener)
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NS_INTERFACE_MAP_ENTRY(nsIDOMMouseListener)
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NS_INTERFACE_MAP_ENTRY(nsICDocShellTreeOwner)
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NS_INTERFACE_MAP_END
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//*****************************************************************************
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@ -138,9 +152,9 @@ NS_IMETHODIMP nsDocShellTreeOwner::GetPrimaryContentShell(nsIDocShellTreeItem**
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{
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NS_ENSURE_ARG_POINTER(aShell);
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if (mTreeOwner)
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if(mTreeOwner)
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return mTreeOwner->GetPrimaryContentShell(aShell);
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*aShell = (mPrimaryContentShell ? mPrimaryContentShell : mWebBrowser->mDocShellAsItem.get());
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NS_IF_ADDREF(*aShell);
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@ -426,15 +440,20 @@ nsDocShellTreeOwner::OnProgressChange(nsIWebProgress* aProgress,
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PRInt32 aCurTotalProgress,
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PRInt32 aMaxTotalProgress)
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{
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if(!mOwnerProgressListener)
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return NS_OK;
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// In the absence of DOM document creation event, this method is the
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// most convenient place to install the mouse listener on the
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// DOM document.
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AddMouseListener();
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if(!mOwnerProgressListener)
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return NS_OK;
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return mOwnerProgressListener->OnProgressChange(aProgress,
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aRequest,
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aCurSelfProgress,
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aMaxSelfProgress,
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aCurTotalProgress,
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aMaxTotalProgress);
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return mOwnerProgressListener->OnProgressChange(aProgress,
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aRequest,
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aCurSelfProgress,
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aMaxSelfProgress,
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aCurTotalProgress,
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aMaxTotalProgress);
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}
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NS_IMETHODIMP
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@ -484,7 +503,7 @@ nsDocShellTreeOwner::OnStatusChange(nsIWebProgress* aWebProgress,
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void nsDocShellTreeOwner::WebBrowser(nsWebBrowser* aWebBrowser)
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{
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mWebBrowser = aWebBrowser;
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mWebBrowser = aWebBrowser;
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}
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nsWebBrowser* nsDocShellTreeOwner::WebBrowser()
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@ -536,3 +555,198 @@ NS_IMETHODIMP nsDocShellTreeOwner::SetWebBrowserChrome(nsIWebBrowserChrome* aWeb
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}
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return NS_OK;
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}
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///////////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP nsDocShellTreeOwner::AddMouseListener()
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{
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// Clear out the old listener
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RemoveMouseListener();
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NS_ENSURE_TRUE(mWebBrowser, NS_ERROR_FAILURE);
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// Get the DOM document
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nsCOMPtr<nsIDOMDocument> domDocument;
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mWebBrowser->GetDocument(getter_AddRefs(domDocument));
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if (domDocument == nsnull)
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{
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return NS_ERROR_FAILURE;
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}
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// Subscribe to mouse events
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nsCOMPtr<nsIDOMEventReceiver> eventReceiver;
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domDocument->QueryInterface(NS_GET_IID(nsIDOMEventReceiver), getter_AddRefs(eventReceiver));
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if (eventReceiver)
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{
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nsIDOMMouseListener *pListener = NS_STATIC_CAST(nsIDOMMouseListener *, this);
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eventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseListener));
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}
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mLastDOMDocument = domDocument;
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return NS_OK;
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}
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NS_IMETHODIMP nsDocShellTreeOwner::RemoveMouseListener()
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{
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// Unsubscribe from mouse events
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if (mLastDOMDocument)
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{
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nsCOMPtr<nsIDOMEventReceiver> eventReceiver;
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mLastDOMDocument->QueryInterface(NS_GET_IID(nsIDOMEventReceiver), getter_AddRefs(eventReceiver));
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if (eventReceiver)
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{
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nsIDOMMouseListener *pListener = NS_STATIC_CAST(nsIDOMMouseListener *, this);
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eventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseListener));
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}
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mLastDOMDocument = nsnull;
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}
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return NS_OK;
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}
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nsresult nsDocShellTreeOwner::HandleEvent(nsIDOMEvent* aEvent)
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{
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return NS_OK;
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}
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nsresult nsDocShellTreeOwner::MouseDown(nsIDOMEvent* aMouseEvent)
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{
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// Don't bother going any further if no one is interested in context menu events
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nsCOMPtr<nsIContextMenuListener> menuListener(do_QueryInterface(mTreeOwner));
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if (!menuListener)
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{
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return NS_OK;
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}
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nsCOMPtr<nsIDOMMouseEvent> mouseEvent (do_QueryInterface(aMouseEvent));
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if (!mouseEvent)
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{
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return NS_OK;
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}
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// Test for right mouse button click
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PRUint16 buttonNumber;
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nsresult res = mouseEvent->GetButton(&buttonNumber);
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if (NS_FAILED(res))
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{
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return res;
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}
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if (buttonNumber != 3) // 3 is the magic number
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{
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return NS_OK;
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}
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nsCOMPtr<nsIDOMEventTarget> targetNode;
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res = aMouseEvent->GetTarget(getter_AddRefs(targetNode));
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if (NS_FAILED(res))
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{
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return res;
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}
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if (!targetNode)
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{
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return NS_ERROR_NULL_POINTER;
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}
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nsCOMPtr<nsIDOMNode> node = do_QueryInterface(targetNode);
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if (!node)
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{
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return NS_OK;
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}
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// Find the first node to be an element starting with this node and
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// working up through its parents.
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PRUint32 flags = nsIContextMenuListener::CONTEXT_NONE;
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nsCOMPtr<nsIDOMHTMLElement> element;
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do {
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PRUint16 type;
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node->GetNodeType(&type);
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// XXX test for selected text
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element = do_QueryInterface(node);
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if (element)
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{
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nsAutoString tag;
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element->GetTagName(tag);
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// Test what kind of element we're dealing with here
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if (tag.EqualsWithConversion("input", PR_TRUE))
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{
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// INPUT element - button, combo, checkbox, text etc.
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flags |= nsIContextMenuListener::CONTEXT_INPUT;
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}
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else if (tag.EqualsWithConversion("img", PR_TRUE))
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{
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// IMG element
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flags |= nsIContextMenuListener::CONTEXT_IMAGE;
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}
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else
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{
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// Something else
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flags |= nsIContextMenuListener::CONTEXT_OTHER;
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}
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// Test if the element has an associated link
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nsCOMPtr<nsIDOMNamedNodeMap> attributes;
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node->GetAttributes(getter_AddRefs(attributes));
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if (attributes)
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{
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nsCOMPtr<nsIDOMNode> hrefNode;
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nsAutoString href; href.AssignWithConversion("href");
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attributes->GetNamedItem(href, getter_AddRefs(hrefNode));
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if (hrefNode)
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{
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flags |= nsIContextMenuListener::CONTEXT_LINK;
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break;
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}
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}
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}
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nsCOMPtr<nsIDOMNode> parentNode;
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node->GetParentNode(getter_AddRefs(parentNode));
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// Test if we're at the top of the document
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if (!parentNode)
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{
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node = nsnull;
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flags |= nsIContextMenuListener::CONTEXT_DOCUMENT;
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break;
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}
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node = parentNode;
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} while (node);
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// Tell the listener all about the event
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menuListener->OnShowContextMenu(flags, aMouseEvent, node);
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return NS_OK;
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}
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nsresult nsDocShellTreeOwner::MouseUp(nsIDOMEvent* aMouseEvent)
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{
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return NS_OK;
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}
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nsresult nsDocShellTreeOwner::MouseClick(nsIDOMEvent* aMouseEvent)
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{
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return NS_OK;
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}
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nsresult nsDocShellTreeOwner::MouseDblClick(nsIDOMEvent* aMouseEvent)
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{
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return NS_OK;
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}
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nsresult nsDocShellTreeOwner::MouseOver(nsIDOMEvent* aMouseEvent)
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{
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return NS_OK;
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}
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nsresult nsDocShellTreeOwner::MouseOut(nsIDOMEvent* aMouseEvent)
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{
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return NS_OK;
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}
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@ -33,32 +33,69 @@
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#include "nsIInterfaceRequestor.h"
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#include "nsIWebBrowserChrome.h"
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#include "nsIWebProgressListener.h"
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#include "nsIDOMMouseListener.h"
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#include "nsIDOMDocument.h"
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#include "nsCommandHandler.h"
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class nsWebBrowser;
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// {6D10C180-6888-11d4-952B-0020183BF181}
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#define NS_ICDOCSHELLTREEOWNER_IID \
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{ 0x6d10c180, 0x6888, 0x11d4, { 0x95, 0x2b, 0x0, 0x20, 0x18, 0x3b, 0xf1, 0x81 } }
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/*
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* This is a fake 'hidden' interface that nsDocShellTreeOwner implements.
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* Classes such as nsCommandHandler can QI for this interface to be
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* sure that they're dealing with a valid nsDocShellTreeOwner and not some
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* other object that implements nsIDocShellTreeOwner.
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*/
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class nsICDocShellTreeOwner : public nsISupports
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{
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_ICDOCSHELLTREEOWNER_IID)
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};
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class nsDocShellTreeOwner : public nsIDocShellTreeOwner,
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public nsIBaseWindow,
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public nsIInterfaceRequestor,
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public nsIWebProgressListener
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public nsIWebProgressListener,
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public nsIDOMMouseListener,
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public nsICDocShellTreeOwner
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{
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friend class nsWebBrowser;
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friend class nsCommandHandler;
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_ISUPPORTS
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NS_DECL_NSIBASEWINDOW
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NS_DECL_NSIDOCSHELLTREEOWNER
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NS_DECL_NSIINTERFACEREQUESTOR
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NS_DECL_NSIWEBPROGRESSLISTENER
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NS_DECL_NSIBASEWINDOW
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NS_DECL_NSIDOCSHELLTREEOWNER
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NS_DECL_NSIINTERFACEREQUESTOR
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NS_DECL_NSIWEBPROGRESSLISTENER
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// nsIDOMMouseListener
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virtual nsresult HandleEvent(nsIDOMEvent* aEvent);
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virtual nsresult MouseDown(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseUp(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseClick(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseDblClick(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseOver(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseOut(nsIDOMEvent* aMouseEvent);
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protected:
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nsDocShellTreeOwner();
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virtual ~nsDocShellTreeOwner();
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nsDocShellTreeOwner();
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virtual ~nsDocShellTreeOwner();
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void WebBrowser(nsWebBrowser* aWebBrowser);
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nsWebBrowser* WebBrowser();
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NS_IMETHOD SetTreeOwner(nsIDocShellTreeOwner* aTreeOwner);
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NS_IMETHOD SetWebBrowserChrome(nsIWebBrowserChrome* aWebBrowserChrome);
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void WebBrowser(nsWebBrowser* aWebBrowser);
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nsWebBrowser* WebBrowser();
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NS_IMETHOD SetTreeOwner(nsIDocShellTreeOwner* aTreeOwner);
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NS_IMETHOD SetWebBrowserChrome(nsIWebBrowserChrome* aWebBrowserChrome);
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nsCOMPtr<nsIDOMDocument> mLastDOMDocument;
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NS_IMETHOD AddMouseListener();
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NS_IMETHOD RemoveMouseListener();
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protected:
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