dlls/mshtml/nsevents.c

   1 /*
   2  * Copyright 2007-2008 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "ole2.h"
  29 #include "mshtmcid.h"
  30 #include "shlguid.h"
  31
  32 #include "wine/debug.h"
  33 #include "wine/unicode.h"
  34
  35 #include "mshtml_private.h"
  36 #include "htmlevent.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  39
  40 typedef struct {
  41     const nsIDOMEventListenerVtbl      *lpDOMEventListenerVtbl;
  42     nsDocumentEventListener *This;
  43 } nsEventListener;
  44
  45 struct nsDocumentEventListener {
  46     nsEventListener blur_listener;
  47     nsEventListener focus_listener;
  48     nsEventListener keypress_listener;
  49     nsEventListener load_listener;
  50     nsEventListener htmlevent_listener;
  51
  52     LONG ref;
  53
  54     HTMLDocumentNode *doc;
  55 };
  56
  57 static LONG release_listener(nsDocumentEventListener *This)
  58 {
  59     LONG ref = InterlockedDecrement(&This->ref);
  60
  61     TRACE("(%p) ref=%d\n", This, ref);
  62
  63     if(!ref)
  64         heap_free(This);
  65
  66     return ref;
  67 }
  68
  69 #define NSEVENTLIST_THIS(iface) DEFINE_THIS(nsEventListener, DOMEventListener, iface)
  70
  71 static nsresult NSAPI nsDOMEventListener_QueryInterface(nsIDOMEventListener *iface,
  72                                                         nsIIDRef riid, nsQIResult result)
  73 {
  74     nsEventListener *This = NSEVENTLIST_THIS(iface);
  75
  76     *result = NULL;
  77
  78     if(IsEqualGUID(&IID_nsISupports, riid)) {
  79         TRACE("(%p)->(IID_nsISupports, %p)\n", This, result);
  80         *result = NSEVENTLIST(This);
  81     }else if(IsEqualGUID(&IID_nsIDOMEventListener, riid)) {
  82         TRACE("(%p)->(IID_nsIDOMEventListener %p)\n", This, result);
  83         *result = NSEVENTLIST(This);
  84     }
  85
  86     if(*result) {
  87         nsIWebBrowserChrome_AddRef(NSEVENTLIST(This));
  88         return NS_OK;
  89     }
  90
  91     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
  92     return NS_NOINTERFACE;
  93 }
  94
  95 static nsrefcnt NSAPI nsDOMEventListener_AddRef(nsIDOMEventListener *iface)
  96 {
  97     nsDocumentEventListener *This = NSEVENTLIST_THIS(iface)->This;
  98     LONG ref = InterlockedIncrement(&This->ref);
  99
 100     TRACE("(%p) ref=%d\n", This, ref);
 101
 102     return ref;
 103 }
 104
 105 static nsrefcnt NSAPI nsDOMEventListener_Release(nsIDOMEventListener *iface)
 106 {
 107     nsDocumentEventListener *This = NSEVENTLIST_THIS(iface)->This;
 108
 109     return release_listener(This);
 110 }
 111
 112 static BOOL is_doc_child_focus(HTMLDocumentObj *doc)
 113 {
 114     HWND hwnd;
 115
 116     for(hwnd = GetFocus(); hwnd && hwnd != doc->hwnd; hwnd = GetParent(hwnd));
 117
 118     return hwnd != NULL;
 119 }
 120
 121 static nsresult NSAPI handle_blur(nsIDOMEventListener *iface, nsIDOMEvent *event)
 122 {
 123     HTMLDocumentNode *doc = NSEVENTLIST_THIS(iface)->This->doc;
 124     HTMLDocumentObj *doc_obj;
 125
 126     TRACE("(%p)\n", doc);
 127
 128     if(!doc || !doc->basedoc.doc_obj)
 129         return NS_ERROR_FAILURE;
 130     doc_obj = doc->basedoc.doc_obj;
 131
 132     if(!doc_obj->nscontainer->reset_focus && doc_obj->focus && !is_doc_child_focus(doc_obj)) {
 133         doc_obj->focus = FALSE;
 134         notif_focus(doc_obj);
 135     }
 136
 137     return NS_OK;
 138 }
 139
 140 static nsresult NSAPI handle_focus(nsIDOMEventListener *iface, nsIDOMEvent *event)
 141 {
 142     HTMLDocumentNode *doc = NSEVENTLIST_THIS(iface)->This->doc;
 143     HTMLDocumentObj *doc_obj;
 144
 145     TRACE("(%p)\n", doc);
 146
 147     if(!doc)
 148         return NS_ERROR_FAILURE;
 149     doc_obj = doc->basedoc.doc_obj;
 150
 151     if(!doc_obj->nscontainer->reset_focus && !doc_obj->focus) {
 152         doc_obj->focus = TRUE;
 153         notif_focus(doc_obj);
 154     }
 155
 156     return NS_OK;
 157 }
 158
 159 static nsresult NSAPI handle_keypress(nsIDOMEventListener *iface,
 160         nsIDOMEvent *event)
 161 {
 162     HTMLDocumentNode *doc = NSEVENTLIST_THIS(iface)->This->doc;
 163     HTMLDocumentObj *doc_obj;
 164
 165     if(!doc)
 166         return NS_ERROR_FAILURE;
 167     doc_obj = doc->basedoc.doc_obj;
 168
 169     TRACE("(%p)->(%p)\n", doc, event);
 170
 171     update_doc(&doc_obj->basedoc, UPDATE_UI);
 172     if(doc_obj->usermode == EDITMODE)
 173         handle_edit_event(&doc_obj->basedoc, event);
 174
 175     return NS_OK;
 176 }
 177
 178 static void handle_docobj_load(HTMLDocumentObj *doc)
 179 {
 180     IOleCommandTarget *olecmd = NULL;
 181     HRESULT hres;
 182
 183     if(!doc->client)
 184         return;
 185
 186     hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
 187     if(SUCCEEDED(hres)) {
 188         if(doc->download_state) {
 189             VARIANT state, progress;
 190
 191             V_VT(&progress) = VT_I4;
 192             V_I4(&progress) = 0;
 193             IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_SETPROGRESSPOS,
 194                     OLECMDEXECOPT_DONTPROMPTUSER, &progress, NULL);
 195
 196             V_VT(&state) = VT_I4;
 197             V_I4(&state) = 0;
 198             IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_SETDOWNLOADSTATE,
 199                     OLECMDEXECOPT_DONTPROMPTUSER, &state, NULL);
 200         }
 201
 202         IOleCommandTarget_Exec(olecmd, &CGID_ShellDocView, 103, 0, NULL, NULL);
 203         IOleCommandTarget_Exec(olecmd, &CGID_MSHTML, IDM_PARSECOMPLETE, 0, NULL, NULL);
 204         IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_HTTPEQUIV_DONE, 0, NULL, NULL);
 205
 206         IOleCommandTarget_Release(olecmd);
 207     }
 208     doc->download_state = 0;
 209 }
 210
 211 static nsresult NSAPI handle_load(nsIDOMEventListener *iface, nsIDOMEvent *event)
 212 {
 213     HTMLDocumentNode *doc = NSEVENTLIST_THIS(iface)->This->doc;
 214     HTMLDocumentObj *doc_obj;
 215     nsIDOMHTMLElement *nsbody = NULL;
 216
 217     TRACE("(%p)\n", doc);
 218
 219     if(!doc)
 220         return NS_ERROR_FAILURE;
 221     doc_obj = doc->basedoc.doc_obj;
 222
 223     connect_scripts(doc->basedoc.window);
 224
 225     if(doc_obj->nscontainer->editor_controller) {
 226         nsIController_Release(doc_obj->nscontainer->editor_controller);
 227         doc_obj->nscontainer->editor_controller = NULL;
 228     }
 229
 230     if(doc_obj->usermode == EDITMODE)
 231         handle_edit_load(&doc_obj->basedoc);
 232
 233     if(doc == doc_obj->basedoc.doc_node)
 234         handle_docobj_load(doc_obj);
 235
 236     set_ready_state(doc->basedoc.window, READYSTATE_COMPLETE);
 237
 238     if(doc == doc_obj->basedoc.doc_node) {
 239         if(doc_obj->frame) {
 240             static const WCHAR wszDone[] = {'D','o','n','e',0};
 241             IOleInPlaceFrame_SetStatusText(doc_obj->frame, wszDone);
 242         }
 243
 244         update_title(doc_obj);
 245     }
 246
 247     if(!doc->nsdoc) {
 248         ERR("NULL nsdoc\n");
 249         return NS_ERROR_FAILURE;
 250     }
 251
 252     nsIDOMHTMLDocument_GetBody(doc->nsdoc, &nsbody);
 253     if(nsbody) {
 254         fire_event(doc, EVENTID_LOAD, (nsIDOMNode*)nsbody, event);
 255         nsIDOMHTMLElement_Release(nsbody);
 256     }
 257
 258     return NS_OK;
 259 }
 260
 261 static nsresult NSAPI handle_htmlevent(nsIDOMEventListener *iface, nsIDOMEvent *event)
 262 {
 263     HTMLDocumentNode *doc = NSEVENTLIST_THIS(iface)->This->doc;
 264     const PRUnichar *type;
 265     nsIDOMEventTarget *event_target;
 266     nsIDOMNode *nsnode;
 267     nsAString type_str;
 268     eventid_t eid;
 269     nsresult nsres;
 270
 271     nsAString_Init(&type_str, NULL);
 272     nsIDOMEvent_GetType(event, &type_str);
 273     nsAString_GetData(&type_str, &type);
 274     eid = str_to_eid(type);
 275     nsAString_Finish(&type_str);
 276
 277     nsres = nsIDOMEvent_GetTarget(event, &event_target);
 278     if(NS_FAILED(nsres) || !event_target) {
 279         ERR("GetEventTarget failed: %08x\n", nsres);
 280         return NS_OK;
 281     }
 282
 283     nsres = nsIDOMEventTarget_QueryInterface(event_target, &IID_nsIDOMNode, (void**)&nsnode);
 284     nsIDOMEventTarget_Release(event_target);
 285     if(NS_FAILED(nsres)) {
 286         ERR("Could not get nsIDOMNode: %08x\n", nsres);
 287         return NS_OK;
 288     }
 289
 290     fire_event(doc, eid, nsnode, event);
 291
 292     nsIDOMNode_Release(nsnode);
 293
 294     return NS_OK;
 295 }
 296
 297 #undef NSEVENTLIST_THIS
 298
 299 #define EVENTLISTENER_VTBL(handler) \
 300     { \
 301         nsDOMEventListener_QueryInterface, \
 302         nsDOMEventListener_AddRef, \
 303         nsDOMEventListener_Release, \
 304         handler, \
 305     }
 306
 307 static const nsIDOMEventListenerVtbl blur_vtbl =      EVENTLISTENER_VTBL(handle_blur);
 308 static const nsIDOMEventListenerVtbl focus_vtbl =     EVENTLISTENER_VTBL(handle_focus);
 309 static const nsIDOMEventListenerVtbl keypress_vtbl =  EVENTLISTENER_VTBL(handle_keypress);
 310 static const nsIDOMEventListenerVtbl load_vtbl =      EVENTLISTENER_VTBL(handle_load);
 311 static const nsIDOMEventListenerVtbl htmlevent_vtbl = EVENTLISTENER_VTBL(handle_htmlevent);
 312
 313 static void init_event(nsIDOMEventTarget *target, const PRUnichar *type,
 314         nsIDOMEventListener *listener, BOOL capture)
 315 {
 316     nsAString type_str;
 317     nsresult nsres;
 318
 319     nsAString_Init(&type_str, type);
 320     nsres = nsIDOMEventTarget_AddEventListener(target, &type_str, listener, capture);
 321     nsAString_Finish(&type_str);
 322     if(NS_FAILED(nsres))
 323         ERR("AddEventTarget failed: %08x\n", nsres);
 324
 325 }
 326
 327 static void init_listener(nsEventListener *This, nsDocumentEventListener *listener,
 328         const nsIDOMEventListenerVtbl *vtbl)
 329 {
 330     This->lpDOMEventListenerVtbl = vtbl;
 331     This->This = listener;
 332 }
 333
 334 void add_nsevent_listener(HTMLDocumentNode *doc, LPCWSTR type)
 335 {
 336     nsIDOMEventTarget *target;
 337     nsresult nsres;
 338
 339     nsres = nsIDOMWindow_QueryInterface(doc->basedoc.window->nswindow, &IID_nsIDOMEventTarget, (void**)&target);
 340     if(NS_FAILED(nsres)) {
 341         ERR("Could not get nsIDOMEventTarget interface: %08x\n", nsres);
 342         return;
 343     }
 344
 345     init_event(target, type, NSEVENTLIST(&doc->nsevent_listener->htmlevent_listener), TRUE);
 346     nsIDOMEventTarget_Release(target);
 347 }
 348
 349 void release_nsevents(HTMLDocumentNode *doc)
 350 {
 351     if(doc->nsevent_listener) {
 352         doc->nsevent_listener->doc = NULL;
 353         release_listener(doc->nsevent_listener);
 354         doc->nsevent_listener = NULL;
 355     }
 356 }
 357
 358 void init_nsevents(HTMLDocumentNode *doc)
 359 {
 360     nsDocumentEventListener *listener;
 361     nsIDOMEventTarget *target;
 362     nsresult nsres;
 363
 364     static const PRUnichar wsz_blur[]      = {'b','l','u','r',0};
 365     static const PRUnichar wsz_focus[]     = {'f','o','c','u','s',0};
 366     static const PRUnichar wsz_keypress[]  = {'k','e','y','p','r','e','s','s',0};
 367     static const PRUnichar wsz_load[]      = {'l','o','a','d',0};
 368
 369     listener = heap_alloc(sizeof(nsDocumentEventListener));
 370     if(!listener)
 371         return;
 372
 373     listener->ref = 1;
 374     listener->doc = doc;
 375
 376     init_listener(&listener->blur_listener,        listener, &blur_vtbl);
 377     init_listener(&listener->focus_listener,       listener, &focus_vtbl);
 378     init_listener(&listener->keypress_listener,    listener, &keypress_vtbl);
 379     init_listener(&listener->load_listener,        listener, &load_vtbl);
 380     init_listener(&listener->htmlevent_listener,   listener, &htmlevent_vtbl);
 381
 382     doc->nsevent_listener = listener;
 383
 384     nsres = nsIDOMWindow_QueryInterface(doc->basedoc.window->nswindow, &IID_nsIDOMEventTarget, (void**)&target);
 385     if(NS_FAILED(nsres)) {
 386         ERR("Could not get nsIDOMEventTarget interface: %08x\n", nsres);
 387         return;
 388     }
 389
 390     init_event(target, wsz_blur,       NSEVENTLIST(&listener->blur_listener),        TRUE);
 391     init_event(target, wsz_focus,      NSEVENTLIST(&listener->focus_listener),       TRUE);
 392     init_event(target, wsz_keypress,   NSEVENTLIST(&listener->keypress_listener),    FALSE);
 393     init_event(target, wsz_load,       NSEVENTLIST(&listener->load_listener),        TRUE);
 394
 395     nsIDOMEventTarget_Release(target);
 396 }