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mshtml: Added support for canceling default event behavior.

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This commit is contained in:
Jacek Caban 2011-02-28 13:14:17 +01:00 committed by Alexandre Julliard
parent 650feb0380
commit 5055caa8fa
1 changed files with 81 additions and 44 deletions
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125
dlls/mshtml/htmlevent.c
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@ -140,6 +140,7 @@ typedef struct {
#define EVENT_BUBBLE 0x0002
#define EVENT_FORWARDBODY 0x0004
#define EVENT_NODEHANDLER 0x0008
#define EVENT_CANCELABLE 0x0010
static const event_info_t event_info[] = {
{beforeunloadW, onbeforeunloadW, EVENTT_NONE, DISPID_EVMETH_ONBEFOREUNLOAD,
@ -149,15 +150,15 @@ static const event_info_t event_info[] = {
{changeW, onchangeW, EVENTT_HTML, DISPID_EVMETH_ONCHANGE,
EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
{clickW, onclickW, EVENTT_MOUSE, DISPID_EVMETH_ONCLICK,
EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
EVENT_DEFAULTLISTENER|EVENT_BUBBLE|EVENT_CANCELABLE},
{contextmenuW, oncontextmenuW, EVENTT_MOUSE, DISPID_EVMETH_ONCONTEXTMENU,
EVENT_BUBBLE},
EVENT_BUBBLE|EVENT_CANCELABLE},
{dblclickW, ondblclickW, EVENTT_MOUSE, DISPID_EVMETH_ONDBLCLICK,
EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
EVENT_DEFAULTLISTENER|EVENT_BUBBLE|EVENT_CANCELABLE},
{dragW, ondragW, EVENTT_MOUSE, DISPID_EVMETH_ONDRAG,
0},
EVENT_CANCELABLE},
{dragstartW, ondragstartW, EVENTT_MOUSE, DISPID_EVMETH_ONDRAGSTART,
0},
EVENT_CANCELABLE},
{focusW, onfocusW, EVENTT_HTML, DISPID_EVMETH_ONFOCUS,
EVENT_DEFAULTLISTENER},
{keydownW, onkeydownW, EVENTT_KEY, DISPID_EVMETH_ONKEYDOWN,
@ -177,15 +178,15 @@ static const event_info_t event_info[] = {
{mouseupW, onmouseupW, EVENTT_MOUSE, DISPID_EVMETH_ONMOUSEUP,
EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
{pasteW, onpasteW, EVENTT_NONE, DISPID_EVMETH_ONPASTE,
0},
EVENT_CANCELABLE},
{readystatechangeW, onreadystatechangeW, EVENTT_NONE, DISPID_EVMETH_ONREADYSTATECHANGE,
0},
{resizeW, onresizeW, EVENTT_NONE, DISPID_EVMETH_ONRESIZE,
EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
{selectstartW, onselectstartW, EVENTT_MOUSE, DISPID_EVMETH_ONSELECTSTART,
0},
EVENT_CANCELABLE},
{submitW, onsubmitW, EVENTT_HTML, DISPID_EVMETH_ONSUBMIT,
EVENT_DEFAULTLISTENER|EVENT_BUBBLE}
EVENT_DEFAULTLISTENER|EVENT_BUBBLE|EVENT_CANCELABLE}
};
static const eventid_t node_handled_list[] = { EVENTID_LOAD };
@ -237,6 +238,7 @@ typedef struct {
HTMLDOMNode *target;
const event_info_t *type;
nsIDOMEvent *nsevent;
BOOL prevent_default;
} HTMLEventObj;
static inline HTMLEventObj *impl_from_IHTMLEventObj(IHTMLEventObj *iface)
@ -747,11 +749,11 @@ static dispex_static_data_t HTMLEventObj_dispex = {
HTMLEventObj_iface_tids
};
static IHTMLEventObj *create_event(HTMLDOMNode *target, eventid_t eid, nsIDOMEvent *nsevent)
static HTMLEventObj *create_event(HTMLDOMNode *target, eventid_t eid, nsIDOMEvent *nsevent)
{
HTMLEventObj *ret;
ret = heap_alloc(sizeof(*ret));
ret = heap_alloc_zero(sizeof(*ret));
if(!ret)
return NULL;
@ -788,50 +790,38 @@ static IHTMLEventObj *create_event(HTMLDOMNode *target, eventid_t eid, nsIDOMEve
init_dispex(&ret->dispex, (IUnknown*)&ret->IHTMLEventObj_iface, &HTMLEventObj_dispex);
return &ret->IHTMLEventObj_iface;
return ret;
}
static HRESULT call_disp_func(IDispatch *disp, DISPPARAMS *dp)
static HRESULT call_disp_func(IDispatch *disp, DISPPARAMS *dp, VARIANT *retv)
{
EXCEPINFO ei;
IDispatchEx *dispex;
VARIANT res;
EXCEPINFO ei;
HRESULT hres;
VariantInit(&res);
memset(&ei, 0, sizeof(ei));
hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
if(SUCCEEDED(hres)) {
hres = IDispatchEx_InvokeEx(dispex, 0, GetUserDefaultLCID(), DISPATCH_METHOD, dp, &res, &ei, NULL);
hres = IDispatchEx_InvokeEx(dispex, 0, GetUserDefaultLCID(), DISPATCH_METHOD, dp, retv, &ei, NULL);
IDispatchEx_Release(dispex);
}else {
TRACE("Could not get IDispatchEx interface: %08x\n", hres);
hres = IDispatch_Invoke(disp, 0, &IID_NULL, GetUserDefaultLCID(), DISPATCH_METHOD,
dp, &res, &ei, NULL);
dp, retv, &ei, NULL);
}
VariantClear(&res);
return hres;
}
static HRESULT call_cp_func(IDispatch *disp, DISPID dispid)
static HRESULT call_cp_func(IDispatch *disp, DISPID dispid, VARIANT *retv)
{
DISPPARAMS dp = {NULL,NULL,0,0};
ULONG argerr;
EXCEPINFO ei;
VARIANT vres;
HRESULT hres;
V_VT(&vres) = VT_EMPTY;
memset(&ei, 0, sizeof(ei));
hres = IDispatch_Invoke(disp, dispid, &IID_NULL, 0, DISPATCH_METHOD, &dp, &vres, &ei, &argerr);
if(SUCCEEDED(hres) && V_VT(&vres) != VT_EMPTY) {
FIXME("handle result %s\n", debugstr_variant(&vres));
VariantClear(&vres);
}
return hres;
return IDispatch_Invoke(disp, dispid, &IID_NULL, 0, DISPATCH_METHOD, &dp, retv, &ei, &argerr);
}
static BOOL is_cp_event(cp_static_data_t *data, DISPID dispid)
@ -864,10 +854,12 @@ static BOOL is_cp_event(cp_static_data_t *data, DISPID dispid)
return FALSE;
}
static void call_event_handlers(HTMLDocumentNode *doc, IHTMLEventObj *event_obj, event_target_t *event_target,
static void call_event_handlers(HTMLDocumentNode *doc, HTMLEventObj *event_obj, event_target_t *event_target,
ConnectionPointContainer *cp_container, eventid_t eid, IDispatch *this_obj)
{
const BOOL cancelable = event_info[eid].flags & EVENT_CANCELABLE;
handler_vector_t *handler_vector = NULL;
VARIANT v;
int i;
HRESULT hres;
@ -881,13 +873,25 @@ static void call_event_handlers(HTMLDocumentNode *doc, IHTMLEventObj *event_obj,
V_VT(&arg) = VT_DISPATCH;
V_DISPATCH(&arg) = this_obj;
V_VT(&v) = VT_EMPTY;
TRACE("%s >>>\n", debugstr_w(event_info[eid].name));
hres = call_disp_func(handler_vector->handler_prop, &dp);
if(hres == S_OK)
TRACE("%s <<<\n", debugstr_w(event_info[eid].name));
else
hres = call_disp_func(handler_vector->handler_prop, &dp, &v);
if(hres == S_OK) {
TRACE("%s <<< %s\n", debugstr_w(event_info[eid].name), debugstr_variant(&v));
if(cancelable) {
if(V_VT(&v) == VT_BOOL) {
if(!V_BOOL(&v))
event_obj->prevent_default = TRUE;
}else if(V_VT(&v) != VT_EMPTY) {
FIXME("unhandled result %s\n", debugstr_variant(&v));
}
}
VariantClear(&v);
}else {
WARN("%s <<< %08x\n", debugstr_w(event_info[eid].name), hres);
}
}
if(handler_vector && handler_vector->handler_cnt) {
@ -900,12 +904,25 @@ static void call_event_handlers(HTMLDocumentNode *doc, IHTMLEventObj *event_obj,
i = handler_vector->handler_cnt;
while(i--) {
if(handler_vector->handlers[i]) {
V_VT(&v) = VT_EMPTY;
TRACE("%s [%d] >>>\n", debugstr_w(event_info[eid].name), i);
hres = call_disp_func(handler_vector->handlers[i], &dp);
if(hres == S_OK)
hres = call_disp_func(handler_vector->handlers[i], &dp, &v);
if(hres == S_OK) {
TRACE("%s [%d] <<<\n", debugstr_w(event_info[eid].name), i);
else
if(cancelable) {
if(V_VT(&v) == VT_BOOL) {
if(!V_BOOL(&v))
event_obj->prevent_default = TRUE;
}else if(V_VT(&v) != VT_EMPTY) {
FIXME("unhandled result %s\n", debugstr_variant(&v));
}
}
VariantClear(&v);
}else {
WARN("%s [%d] <<< %08x\n", debugstr_w(event_info[eid].name), i, hres);
}
}
}
}
@ -922,12 +939,25 @@ static void call_event_handlers(HTMLDocumentNode *doc, IHTMLEventObj *event_obj,
if(!cp->sinks[i].disp)
continue;
V_VT(&v) = VT_EMPTY;
TRACE("cp %s [%d] >>>\n", debugstr_w(event_info[eid].name), i);
hres = call_cp_func(cp->sinks[i].disp, event_info[eid].dispid);
if(hres == S_OK)
hres = call_cp_func(cp->sinks[i].disp, event_info[eid].dispid, &v);
if(hres == S_OK) {
TRACE("cp %s [%d] <<<\n", debugstr_w(event_info[eid].name), i);
else
if(cancelable) {
if(V_VT(&v) == VT_BOOL) {
if(!V_BOOL(&v))
event_obj->prevent_default = TRUE;
}else if(V_VT(&v) != VT_EMPTY) {
FIXME("unhandled result %s\n", debugstr_variant(&v));
}
}
VariantClear(&v);
}else {
WARN("cp %s [%d] <<< %08x\n", debugstr_w(event_info[eid].name), i, hres);
}
}
}
}
@ -936,7 +966,8 @@ static void call_event_handlers(HTMLDocumentNode *doc, IHTMLEventObj *event_obj,
void fire_event(HTMLDocumentNode *doc, eventid_t eid, BOOL set_event, nsIDOMNode *target, nsIDOMEvent *nsevent)
{
IHTMLEventObj *prev_event, *event_obj = NULL;
HTMLEventObj *event_obj = NULL;
IHTMLEventObj *prev_event;
nsIDOMNode *parent, *nsnode;
HTMLDOMNode *node;
PRUint16 node_type;
@ -952,7 +983,7 @@ void fire_event(HTMLDocumentNode *doc, eventid_t eid, BOOL set_event, nsIDOMNode
event_obj = create_event(node, eid, nsevent);
}
doc->basedoc.window->event = event_obj;
doc->basedoc.window->event = &event_obj->IHTMLEventObj_iface;
nsIDOMNode_GetNodeType(target, &node_type);
nsnode = target;
@ -1009,9 +1040,15 @@ void fire_event(HTMLDocumentNode *doc, eventid_t eid, BOOL set_event, nsIDOMNode
if(nsnode)
nsIDOMNode_Release(nsnode);
if(event_obj)
IHTMLEventObj_Release(event_obj);
doc->basedoc.window->event = prev_event;
if(event_obj) {
if(event_obj->prevent_default && nsevent) {
TRACE("calling PreventDefault\n");
nsIDOMEvent_PreventDefault(nsevent);
}
IHTMLEventObj_Release(&event_obj->IHTMLEventObj_iface);
}
}
HRESULT dispatch_event(HTMLDOMNode *node, const WCHAR *event_name, VARIANT *event_obj, VARIANT_BOOL *cancelled)