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In theory events can be executed now.

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This commit is contained in:
hyatt%netscape.com 2000-01-26 11:05:44 +00:00
parent 1f92d13290
commit e72db55f0c
4 changed files with 178 additions and 22 deletions
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97
content/xbl/src/nsXBLEventHandler.cpp
View File

@ -4,6 +4,12 @@
#include "nsIAtom.h"
#include "nsIDOMKeyEvent.h"
#include "nsINameSpaceManager.h"
#include "nsIScriptContext.h"
#include "nsIScriptObjectOwner.h"
#include "nsIScriptGlobalObject.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIJSEventListener.h"
PRUint32 nsXBLEventHandler::gRefCnt = 0;
nsIAtom* nsXBLEventHandler::kKeyCodeAtom = nsnull;
@ -25,6 +31,7 @@ nsXBLEventHandler::nsXBLEventHandler(nsIContent* aBoundElement, nsIContent* aHan
kControlAtom = NS_NewAtom("control");
kAltAtom = NS_NewAtom("alt");
kMetaAtom = NS_NewAtom("meta");
kValueAtom = NS_NewAtom("value");
}
}
@ -40,6 +47,7 @@ nsXBLEventHandler::~nsXBLEventHandler()
NS_RELEASE(kControlAtom);
NS_RELEASE(kAltAtom);
NS_RELEASE(kMetaAtom);
NS_RELEASE(kValueAtom);
}
}
@ -55,7 +63,7 @@ nsresult nsXBLEventHandler::KeyUp(nsIDOMEvent* aKeyEvent)
{
nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aKeyEvent);
if (KeyEventMatched(keyEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("keyup"), aKeyEvent);
return NS_OK;
}
@ -63,7 +71,7 @@ nsresult nsXBLEventHandler::KeyDown(nsIDOMEvent* aKeyEvent)
{
nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aKeyEvent);
if (KeyEventMatched(keyEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("keydown"), aKeyEvent);
return NS_OK;
}
@ -71,7 +79,7 @@ nsresult nsXBLEventHandler::KeyPress(nsIDOMEvent* aKeyEvent)
{
nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aKeyEvent);
if (KeyEventMatched(keyEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("keypress"), aKeyEvent);
return NS_OK;
}
@ -79,7 +87,7 @@ nsresult nsXBLEventHandler::MouseDown(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("mousedown"), aMouseEvent);
return NS_OK;
}
@ -87,7 +95,7 @@ nsresult nsXBLEventHandler::MouseUp(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("mouseup"), aMouseEvent);
return NS_OK;
}
@ -95,7 +103,7 @@ nsresult nsXBLEventHandler::MouseClick(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("click"), aMouseEvent);
return NS_OK;
}
@ -103,7 +111,7 @@ nsresult nsXBLEventHandler::MouseDblClick(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("dblclick"), aMouseEvent);
return NS_OK;
}
@ -111,7 +119,7 @@ nsresult nsXBLEventHandler::MouseOver(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("mouseover"), aMouseEvent);
return NS_OK;
}
@ -119,7 +127,7 @@ nsresult nsXBLEventHandler::MouseOut(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("mouseout"), aMouseEvent);
return NS_OK;
}
@ -219,8 +227,77 @@ nsXBLEventHandler::MouseEventMatched(nsIDOMUIEvent* aMouseEvent)
}
NS_IMETHODIMP
nsXBLEventHandler::ExecuteHandler()
nsXBLEventHandler::ExecuteHandler(const nsString& aEventName, nsIDOMEvent* aEvent)
{
// Look for a compiled handler on the element.
nsCOMPtr<nsIAtom> eventName = getter_AddRefs(NS_NewAtom(aEventName));
nsCOMPtr<nsIScriptEventHandlerOwner> handlerOwner = do_QueryInterface(mHandlerElement);
if (!handlerOwner)
return NS_ERROR_FAILURE;
void* handler = nsnull;
handlerOwner->GetCompiledEventHandler(eventName, &handler);
if (!handler) {
// We've never compiled the event handler before. Let's get it
// compiled.
nsAutoString handlerText;
mHandlerElement->GetAttribute(kNameSpaceID_None, kValueAtom, handlerText);
if (handlerText.IsEmpty())
return NS_OK; // For whatever reason, they didn't give us anything to do.
nsCOMPtr<nsIDocument> document;
mHandlerElement->GetDocument(*getter_AddRefs(document));
// Ensure that a global object has been made for the XBL document.
nsCOMPtr<nsIScriptGlobalObject> globalObject;
document->GetScriptGlobalObject(getter_AddRefs(globalObject));
if (!globalObject) {
NS_NewScriptGlobalObject(getter_AddRefs(globalObject));
document->SetScriptGlobalObject(globalObject);
}
// Ensure that we have a script context for the XBL document.
nsCOMPtr<nsIScriptContext> context;
globalObject->GetContext(getter_AddRefs(context));
if (!context) {
NS_CreateScriptContext(globalObject, getter_AddRefs(context));
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(document);
globalObject->SetNewDocument(domDoc); // Ensures document is set.
}
nsCOMPtr<nsIScriptObjectOwner> owner = do_QueryInterface(mHandlerElement);
void* scriptObject;
owner->GetScriptObject(context, &scriptObject);
handlerOwner->CompileEventHandler(context, scriptObject, eventName, handlerText, &handler);
}
// Now that the handler has been compiled, let's bind it to the
// element in question.
nsCOMPtr<nsIDocument> boundDocument;
mBoundElement->GetDocument(*getter_AddRefs(boundDocument));
nsCOMPtr<nsIScriptGlobalObject> boundGlobal;
boundDocument->GetScriptGlobalObject(getter_AddRefs(boundGlobal));
nsCOMPtr<nsIScriptContext> boundContext;
boundGlobal->GetContext(getter_AddRefs(boundContext));
nsCOMPtr<nsIScriptObjectOwner> owner = do_QueryInterface(mBoundElement);
void* scriptObject;
owner->GetScriptObject(boundContext, &scriptObject);
// Temporarily bind it to the bound element
boundContext->BindCompiledEventHandler(scriptObject, eventName, handler);
// Execute it.
nsCOMPtr<nsIDOMEventListener> eventListener;
NS_NewJSEventListener(getter_AddRefs(eventListener), boundContext, owner);
eventListener->HandleEvent(aEvent);
// Now unbind it.
boundContext->BindCompiledEventHandler(scriptObject, eventName, nsnull);
return NS_OK;
}

3
content/xbl/src/nsXBLEventHandler.h
View File

@ -62,7 +62,7 @@ protected:
inline PRBool IsMatchingKeyCode(const PRUint32 aChar, const nsString& aKeyName);
inline PRBool IsMatchingCharCode(const PRUint32 aChar, const nsString& aKeyName);
NS_IMETHOD ExecuteHandler();
NS_IMETHOD ExecuteHandler(const nsString& aEventName, nsIDOMEvent* aEvent);
static PRUint32 gRefCnt;
static nsIAtom* kKeyAtom;
@ -73,6 +73,7 @@ protected:
static nsIAtom* kControlAtom;
static nsIAtom* kAltAtom;
static nsIAtom* kMetaAtom;
static nsIAtom* kValueAtom;
protected:
nsIContent* mBoundElement; // Both of these refs are weak.

97
layout/xbl/src/nsXBLEventHandler.cpp
View File

@ -4,6 +4,12 @@
#include "nsIAtom.h"
#include "nsIDOMKeyEvent.h"
#include "nsINameSpaceManager.h"
#include "nsIScriptContext.h"
#include "nsIScriptObjectOwner.h"
#include "nsIScriptGlobalObject.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIJSEventListener.h"
PRUint32 nsXBLEventHandler::gRefCnt = 0;
nsIAtom* nsXBLEventHandler::kKeyCodeAtom = nsnull;
@ -25,6 +31,7 @@ nsXBLEventHandler::nsXBLEventHandler(nsIContent* aBoundElement, nsIContent* aHan
kControlAtom = NS_NewAtom("control");
kAltAtom = NS_NewAtom("alt");
kMetaAtom = NS_NewAtom("meta");
kValueAtom = NS_NewAtom("value");
}
}
@ -40,6 +47,7 @@ nsXBLEventHandler::~nsXBLEventHandler()
NS_RELEASE(kControlAtom);
NS_RELEASE(kAltAtom);
NS_RELEASE(kMetaAtom);
NS_RELEASE(kValueAtom);
}
}
@ -55,7 +63,7 @@ nsresult nsXBLEventHandler::KeyUp(nsIDOMEvent* aKeyEvent)
{
nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aKeyEvent);
if (KeyEventMatched(keyEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("keyup"), aKeyEvent);
return NS_OK;
}
@ -63,7 +71,7 @@ nsresult nsXBLEventHandler::KeyDown(nsIDOMEvent* aKeyEvent)
{
nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aKeyEvent);
if (KeyEventMatched(keyEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("keydown"), aKeyEvent);
return NS_OK;
}
@ -71,7 +79,7 @@ nsresult nsXBLEventHandler::KeyPress(nsIDOMEvent* aKeyEvent)
{
nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aKeyEvent);
if (KeyEventMatched(keyEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("keypress"), aKeyEvent);
return NS_OK;
}
@ -79,7 +87,7 @@ nsresult nsXBLEventHandler::MouseDown(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("mousedown"), aMouseEvent);
return NS_OK;
}
@ -87,7 +95,7 @@ nsresult nsXBLEventHandler::MouseUp(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("mouseup"), aMouseEvent);
return NS_OK;
}
@ -95,7 +103,7 @@ nsresult nsXBLEventHandler::MouseClick(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("click"), aMouseEvent);
return NS_OK;
}
@ -103,7 +111,7 @@ nsresult nsXBLEventHandler::MouseDblClick(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("dblclick"), aMouseEvent);
return NS_OK;
}
@ -111,7 +119,7 @@ nsresult nsXBLEventHandler::MouseOver(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("mouseover"), aMouseEvent);
return NS_OK;
}
@ -119,7 +127,7 @@ nsresult nsXBLEventHandler::MouseOut(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMUIEvent> mouseEvent = do_QueryInterface(aMouseEvent);
if (MouseEventMatched(mouseEvent))
ExecuteHandler();
ExecuteHandler(nsAutoString("mouseout"), aMouseEvent);
return NS_OK;
}
@ -219,8 +227,77 @@ nsXBLEventHandler::MouseEventMatched(nsIDOMUIEvent* aMouseEvent)
}
NS_IMETHODIMP
nsXBLEventHandler::ExecuteHandler()
nsXBLEventHandler::ExecuteHandler(const nsString& aEventName, nsIDOMEvent* aEvent)
{
// Look for a compiled handler on the element.
nsCOMPtr<nsIAtom> eventName = getter_AddRefs(NS_NewAtom(aEventName));
nsCOMPtr<nsIScriptEventHandlerOwner> handlerOwner = do_QueryInterface(mHandlerElement);
if (!handlerOwner)
return NS_ERROR_FAILURE;
void* handler = nsnull;
handlerOwner->GetCompiledEventHandler(eventName, &handler);
if (!handler) {
// We've never compiled the event handler before. Let's get it
// compiled.
nsAutoString handlerText;
mHandlerElement->GetAttribute(kNameSpaceID_None, kValueAtom, handlerText);
if (handlerText.IsEmpty())
return NS_OK; // For whatever reason, they didn't give us anything to do.
nsCOMPtr<nsIDocument> document;
mHandlerElement->GetDocument(*getter_AddRefs(document));
// Ensure that a global object has been made for the XBL document.
nsCOMPtr<nsIScriptGlobalObject> globalObject;
document->GetScriptGlobalObject(getter_AddRefs(globalObject));
if (!globalObject) {
NS_NewScriptGlobalObject(getter_AddRefs(globalObject));
document->SetScriptGlobalObject(globalObject);
}
// Ensure that we have a script context for the XBL document.
nsCOMPtr<nsIScriptContext> context;
globalObject->GetContext(getter_AddRefs(context));
if (!context) {
NS_CreateScriptContext(globalObject, getter_AddRefs(context));
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(document);
globalObject->SetNewDocument(domDoc); // Ensures document is set.
}
nsCOMPtr<nsIScriptObjectOwner> owner = do_QueryInterface(mHandlerElement);
void* scriptObject;
owner->GetScriptObject(context, &scriptObject);
handlerOwner->CompileEventHandler(context, scriptObject, eventName, handlerText, &handler);
}
// Now that the handler has been compiled, let's bind it to the
// element in question.
nsCOMPtr<nsIDocument> boundDocument;
mBoundElement->GetDocument(*getter_AddRefs(boundDocument));
nsCOMPtr<nsIScriptGlobalObject> boundGlobal;
boundDocument->GetScriptGlobalObject(getter_AddRefs(boundGlobal));
nsCOMPtr<nsIScriptContext> boundContext;
boundGlobal->GetContext(getter_AddRefs(boundContext));
nsCOMPtr<nsIScriptObjectOwner> owner = do_QueryInterface(mBoundElement);
void* scriptObject;
owner->GetScriptObject(boundContext, &scriptObject);
// Temporarily bind it to the bound element
boundContext->BindCompiledEventHandler(scriptObject, eventName, handler);
// Execute it.
nsCOMPtr<nsIDOMEventListener> eventListener;
NS_NewJSEventListener(getter_AddRefs(eventListener), boundContext, owner);
eventListener->HandleEvent(aEvent);
// Now unbind it.
boundContext->BindCompiledEventHandler(scriptObject, eventName, nsnull);
return NS_OK;
}

3
layout/xbl/src/nsXBLEventHandler.h
View File

@ -62,7 +62,7 @@ protected:
inline PRBool IsMatchingKeyCode(const PRUint32 aChar, const nsString& aKeyName);
inline PRBool IsMatchingCharCode(const PRUint32 aChar, const nsString& aKeyName);
NS_IMETHOD ExecuteHandler();
NS_IMETHOD ExecuteHandler(const nsString& aEventName, nsIDOMEvent* aEvent);
static PRUint32 gRefCnt;
static nsIAtom* kKeyAtom;
@ -73,6 +73,7 @@ protected:
static nsIAtom* kControlAtom;
static nsIAtom* kAltAtom;
static nsIAtom* kMetaAtom;
static nsIAtom* kValueAtom;
protected:
nsIContent* mBoundElement; // Both of these refs are weak.