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Added new interface nsITooltipTextProvider and service to chrome listener. b=90195 r=valeski:@netscape.com sr=rpotts@netscape.com

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git-svn-id: svn://10.0.0.236/trunk@99180 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
locka%iol.ie
2001-07-13 09:20:07 +00:00
parent 807ce73f20
commit d32df36e1d
3 changed files with 105 additions and 52 deletions
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127
mozilla/embedding/browser/webBrowser/nsDocShellTreeOwner.cpp
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@@ -32,6 +32,7 @@
#include "nsIGenericFactory.h"
#include "nsStyleCoord.h"
#include "nsHTMLReflowState.h"
#include "nsXPIDLString.h"
// Interfaces needed to be included
#include "nsIContextMenuListener.h"
@@ -828,6 +829,65 @@ nsDocShellTreeOwner :: RemoveChromeListeners ( )
#endif
///////////////////////////////////////////////////////////////////////////////
// DefaultTooltipTextProvider
class DefaultTooltipTextProvider : public nsITooltipTextProvider
{
public:
DefaultTooltipTextProvider();
NS_DECL_ISUPPORTS
NS_DECL_NSITOOLTIPTEXTPROVIDER
};
NS_IMPL_THREADSAFE_ISUPPORTS1(DefaultTooltipTextProvider, nsITooltipTextProvider)
DefaultTooltipTextProvider::DefaultTooltipTextProvider()
{
NS_INIT_REFCNT();
}
/* void getNodeText (in nsIDOMNode aNode, out wstring aText); */
NS_IMETHODIMP DefaultTooltipTextProvider::GetNodeText(nsIDOMNode *aNode, PRUnichar **aText, PRBool *_retval)
{
NS_ENSURE_ARG_POINTER(aNode);
NS_ENSURE_ARG_POINTER(aText);
nsString outText;
PRBool found = PR_FALSE;
nsCOMPtr<nsIDOMNode> current ( aNode );
while ( !found && current ) {
nsCOMPtr<nsIDOMElement> currElement ( do_QueryInterface(current) );
if ( currElement ) {
// first try the normal title attribute...
currElement->GetAttribute(NS_LITERAL_STRING("title"), outText);
if ( outText.Length() )
found = PR_TRUE;
else {
// ...ok, that didn't work, try it in the XLink namespace
currElement->GetAttributeNS(NS_LITERAL_STRING("http://www.w3.org/1999/xlink"), NS_LITERAL_STRING("title"), outText);
if ( outText.Length() )
found = PR_TRUE;
}
}
// not found here, walk up to the parent and keep trying
if ( !found ) {
nsCOMPtr<nsIDOMNode> temp ( current );
temp->GetParentNode(getter_AddRefs(current));
}
} // while not found
*_retval = found;
*aText = (found) ? outText.ToNewUnicode() : nsnull;
return NS_OK;
}
///////////////////////////////////////////////////////////////////////////////
NS_IMPL_ADDREF(ChromeTooltipListener)
NS_IMPL_RELEASE(ChromeTooltipListener)
@@ -843,12 +903,19 @@ NS_INTERFACE_MAP_END
//
// ChromeTooltipListener ctor
//
ChromeTooltipListener :: ChromeTooltipListener ( nsWebBrowser* inBrowser, nsIWebBrowserChrome* inChrome )
: mWebBrowser(inBrowser), mWebBrowserChrome(inChrome),
mTooltipListenerInstalled(PR_FALSE),
mShowingTooltip(PR_FALSE), mMouseClientX(0), mMouseClientY(0)
{
NS_INIT_REFCNT();
mTooltipTextProvider = do_GetService(NS_TOOLTIPTEXTPROVIDER_CONTRACTID);
if (!mTooltipTextProvider) {
nsISupports *pProvider = (nsISupports *) new DefaultTooltipTextProvider;
mTooltipTextProvider = do_QueryInterface(pProvider);
}
} // ctor
@@ -1170,45 +1237,6 @@ ChromeTooltipListener :: HideTooltip ( )
} // HideTooltip
//
// FindTitleText
//
// Determine if there is a TITLE attribute. Checks both the XLINK namespace, and no
// namespace. Returns |PR_TRUE| if there is, and sets the text in |outText|.
//
PRBool
ChromeTooltipListener :: FindTitleText ( nsIDOMNode* inNode, nsAWritableString & outText )
{
PRBool found = PR_FALSE;
nsCOMPtr<nsIDOMNode> current ( inNode );
while ( !found && current ) {
nsCOMPtr<nsIDOMElement> currElement ( do_QueryInterface(current) );
if ( currElement ) {
// first try the normal title attribute...
currElement->GetAttribute(NS_LITERAL_STRING("title"), outText);
if ( outText.Length() )
found = PR_TRUE;
else {
// ...ok, that didn't work, try it in the XLink namespace
currElement->GetAttributeNS(NS_LITERAL_STRING("http://www.w3.org/1999/xlink"), NS_LITERAL_STRING("title"), outText);
if ( outText.Length() )
found = PR_TRUE;
}
}
// not found here, walk up to the parent and keep trying
if ( !found ) {
nsCOMPtr<nsIDOMNode> temp ( current );
temp->GetParentNode(getter_AddRefs(current));
}
} // while not found
return found;
} // FindTitleText
//
// sTooltipCallback
//
@@ -1226,11 +1254,22 @@ ChromeTooltipListener :: sTooltipCallback (nsITimer *aTimer, void *aChromeToolti
{
ChromeTooltipListener* self = NS_STATIC_CAST(ChromeTooltipListener*, aChromeTooltipListener);
if ( self && self->mPossibleTooltipNode ) {
// if there is a TITLE tag, show the tip and fire off a timer to auto-hide it
nsAutoString tooltipText;
if ( self->FindTitleText(self->mPossibleTooltipNode, tooltipText) ) {
self->CreateAutoHideTimer ( );
self->ShowTooltip ( self->mMouseClientX, self->mMouseClientY, tooltipText );
// if there is text associated with the node, show the tip and fire
// off a timer to auto-hide it.
nsXPIDLString tooltipText;
if (self->mTooltipTextProvider) {
PRBool textFound = PR_FALSE;
self->mTooltipTextProvider->GetNodeText(
self->mPossibleTooltipNode, getter_Copies(tooltipText), &textFound);
if (textFound) {
nsString tipText(tooltipText);
self->CreateAutoHideTimer ( );
self->ShowTooltip (self->mMouseClientX, self->mMouseClientY, tipText);
}
}
// release tooltip target if there is one, NO MATTER WHAT