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Bugscape 8854 - allow access to background images for embedding context menu listeners. Adding new interfaces, nsIContextMenuListener2 and nsIContextMenuInfo, to allow access to more information about the menu context. Also fixes bug 163928. r=pinkerton/sr=alecf

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git-svn-id: svn://10.0.0.236/trunk@129668 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
ccarlen%netscape.com
2002-09-16 00:13:37 +00:00
parent 521b74c195
commit 7414a213bc
17 changed files with 286 additions and 117 deletions
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72
mozilla/embedding/browser/webBrowser/nsDocShellTreeOwner.cpp
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@@ -42,6 +42,7 @@
// Interfaces needed to be included
#include "nsIContextMenuListener.h"
#include "nsIContextMenuListener2.h"
#include "nsITooltipListener.h"
#include "nsIPrivateDOMEvent.h"
#include "nsIDOMNode.h"
@@ -53,6 +54,7 @@
#include "nsIDOMMouseEvent.h"
#include "nsIDOMEventReceiver.h"
#include "nsIDOMNamedNodeMap.h"
#include "nsIDOMHTMLInputElement.h"
#include "nsIWebNavigation.h"
#include "nsIDOMHTMLElement.h"
#include "nsIPresShell.h"
@@ -68,6 +70,8 @@
#include "nsIWebBrowserChromeFocus.h"
#include "nsIDragDropOverride.h"
#include "nsIContent.h"
#include "imgIContainer.h"
#include "nsContextMenuInfo.h"
//
// GetEventReceiver
@@ -806,8 +810,9 @@ nsDocShellTreeOwner :: AddChromeListeners ( )
// install context menus
if ( !mChromeContextMenuListener ) {
nsCOMPtr<nsIContextMenuListener2> contextListener2 ( do_QueryInterface(mWebBrowserChrome) );
nsCOMPtr<nsIContextMenuListener> contextListener ( do_QueryInterface(mWebBrowserChrome) );
if ( contextListener ) {
if ( contextListener2 || contextListener ) {
mChromeContextMenuListener = new ChromeContextMenuListener ( mWebBrowser, mWebBrowserChrome );
if ( mChromeContextMenuListener ) {
NS_ADDREF(mChromeContextMenuListener);
@@ -817,7 +822,7 @@ nsDocShellTreeOwner :: AddChromeListeners ( )
rv = NS_ERROR_OUT_OF_MEMORY;
}
}
// install the external dragDrop handler
if ( !mChromeDragHandler ) {
mChromeDragHandler = do_CreateInstance("@mozilla.org:/content/content-area-dragdrop;1", &rv);
@@ -1449,13 +1454,12 @@ ChromeContextMenuListener :: AddChromeListeners ( )
// Register the appropriate events for context menus, but only if
// the embedding chrome cares.
nsresult rv = NS_OK;
nsCOMPtr<nsIContextMenuListener2> contextListener2 ( do_QueryInterface(mWebBrowserChrome) );
nsCOMPtr<nsIContextMenuListener> contextListener ( do_QueryInterface(mWebBrowserChrome) );
if ( contextListener && !mContextMenuListenerInstalled ) {
if ( (contextListener || contextListener2) && !mContextMenuListenerInstalled )
rv = AddContextMenuListener();
if ( NS_FAILED(rv) )
return rv;
}
return rv;
} // AddChromeListeners
@@ -1505,11 +1509,23 @@ ChromeContextMenuListener :: ContextMenu ( nsIDOMEvent* aMouseEvent )
// Stop the context menu event going to other windows (bug 78396)
aMouseEvent->PreventDefault();
// If the listener is a nsIContextMenuListener2, create the info object
nsCOMPtr<nsIContextMenuListener2> menuListener2(do_QueryInterface(mWebBrowserChrome));
nsContextMenuInfo *menuInfoImpl = nsnull;
nsCOMPtr<nsIContextMenuInfo> menuInfo;
if (menuListener2) {
menuInfoImpl = new nsContextMenuInfo;
if (!menuInfoImpl)
return NS_ERROR_OUT_OF_MEMORY;
menuInfo = menuInfoImpl;
}
// Find the first node to be an element starting with this node and
// working up through its parents.
PRUint32 flags = nsIContextMenuListener::CONTEXT_NONE;
PRUint32 flags2 = nsIContextMenuListener2::CONTEXT_NONE;
nsCOMPtr<nsIDOMHTMLElement> element;
do {
// XXX test for selected text
@@ -1523,6 +1539,7 @@ ChromeContextMenuListener :: ContextMenu ( nsIDOMEvent* aMouseEvent )
if (tag.Equals(NS_LITERAL_STRING("img"), nsCaseInsensitiveStringComparator()))
{
flags |= nsIContextMenuListener::CONTEXT_IMAGE;
flags2 |= nsIContextMenuListener2::CONTEXT_IMAGE;
targetDOMnode = node;
// if we see an image, keep searching for a possible anchor
}
@@ -1530,21 +1547,42 @@ ChromeContextMenuListener :: ContextMenu ( nsIDOMEvent* aMouseEvent )
{
// INPUT element - button, combo, checkbox, text etc.
flags |= nsIContextMenuListener::CONTEXT_INPUT;
flags2 |= nsIContextMenuListener2::CONTEXT_INPUT;
targetDOMnode = node;
// See if the input type is an image
if (menuListener2) {
nsCOMPtr<nsIDOMHTMLInputElement> inputElement(do_QueryInterface(node));
if (inputElement) {
nsAutoString inputElemType;
inputElement->GetType(inputElemType);
if (inputElemType.Equals(NS_LITERAL_STRING("image"), nsCaseInsensitiveStringComparator()))
flags2 |= nsIContextMenuListener2::CONTEXT_IMAGE;
}
}
break; // exit do-while
}
else if (tag.Equals(NS_LITERAL_STRING("textarea"), nsCaseInsensitiveStringComparator()))
{
// text area
flags |= nsIContextMenuListener::CONTEXT_TEXT;
flags2 |= nsIContextMenuListener2::CONTEXT_TEXT;
targetDOMnode = node;
break; // exit do-while
}
else if (tag.Equals(NS_LITERAL_STRING("html"), nsCaseInsensitiveStringComparator()))
{
// first check if this is a background image that the user was trying to click on
// and if the listener is ready for that (only nsIContextMenuListener2 and up)
if (menuInfoImpl && menuInfoImpl->HasBackgroundImage(node)) {
flags2 |= nsIContextMenuListener2::CONTEXT_BACKGROUND_IMAGE;
targetDOMnode = node;
}
if (!flags && !flags2) {
// only care about this if no other context was found.
if (!flags) {
flags |= nsIContextMenuListener::CONTEXT_DOCUMENT;
flags2 |= nsIContextMenuListener2::CONTEXT_DOCUMENT;
targetDOMnode = node;
}
break; // exit do-while
@@ -1566,8 +1604,11 @@ ChromeContextMenuListener :: ContextMenu ( nsIDOMEvent* aMouseEvent )
if (hrefNode)
{
flags |= nsIContextMenuListener::CONTEXT_LINK;
flags2 |= nsIContextMenuListener2::CONTEXT_LINK;
if (!targetDOMnode)
targetDOMnode = node;
if (menuInfoImpl)
menuInfoImpl->SetAssociatedLink(node);
break; // exit do-while
}
}
@@ -1601,10 +1642,19 @@ ChromeContextMenuListener :: ContextMenu ( nsIDOMEvent* aMouseEvent )
NS_ENSURE_SUCCESS(res, res);
// Tell the listener all about the event
nsCOMPtr<nsIContextMenuListener> menuListener(do_QueryInterface(mWebBrowserChrome));
if ( menuListener )
menuListener->OnShowContextMenu(flags, aMouseEvent, targetDOMnode);
if ( menuListener2 ) {
menuInfoImpl->SetMouseEvent(aMouseEvent);
menuInfoImpl->SetDOMNode(targetDOMnode);
menuListener2->OnShowContextMenu(flags2, menuInfo);
}
else {
nsCOMPtr<nsIContextMenuListener> menuListener(do_QueryInterface(mWebBrowserChrome));
if ( menuListener )
menuListener->OnShowContextMenu(flags, aMouseEvent, targetDOMnode);
}
return NS_OK;
} // MouseDown