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 #include "resource.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  40
  41 typedef struct {
  42     nsIDOMEventListener nsIDOMEventListener_iface;
  43     nsDocumentEventListener *This;
  44 } nsEventListener;
  45
  46 struct nsDocumentEventListener {
  47     nsEventListener blur_listener;
  48     nsEventListener focus_listener;
  49     nsEventListener keypress_listener;
  50     nsEventListener load_listener;
  51     nsEventListener htmlevent_listener;
  52
  53     LONG ref;
  54
  55     HTMLDocumentNode *doc;
  56 };
  57
  58 static LONG release_listener(nsDocumentEventListener *This)
  59 {
  60     LONG ref = InterlockedDecrement(&This->ref);
  61
  62     TRACE("(%p) ref=%d\n", This, ref);
  63
  64     if(!ref)
  65         heap_free(This);
  66
  67     return ref;
  68 }
  69
  70 static inline nsEventListener *impl_from_nsIDOMEventListener(nsIDOMEventListener *iface)
  71 {
  72     return CONTAINING_RECORD(iface, nsEventListener, nsIDOMEventListener_iface);
  73 }
  74
  75 static nsresult NSAPI nsDOMEventListener_QueryInterface(nsIDOMEventListener *iface,
  76         nsIIDRef riid, void **result)
  77 {
  78     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
  79
  80     *result = NULL;
  81
  82     if(IsEqualGUID(&IID_nsISupports, riid)) {
  83         TRACE("(%p)->(IID_nsISupports, %p)\n", This, result);
  84         *result = &This->nsIDOMEventListener_iface;
  85     }else if(IsEqualGUID(&IID_nsIDOMEventListener, riid)) {
  86         TRACE("(%p)->(IID_nsIDOMEventListener %p)\n", This, result);
  87         *result = &This->nsIDOMEventListener_iface;
  88     }
  89
  90     if(*result) {
  91         nsIWebBrowserChrome_AddRef(&This->nsIDOMEventListener_iface);
  92         return NS_OK;
  93     }
  94
  95     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), result);
  96     return NS_NOINTERFACE;
  97 }
  98
  99 static nsrefcnt NSAPI nsDOMEventListener_AddRef(nsIDOMEventListener *iface)
 100 {
 101     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 102     LONG ref = InterlockedIncrement(&This->This->ref);
 103
 104     TRACE("(%p) ref=%d\n", This->This, ref);
 105
 106     return ref;
 107 }
 108
 109 static nsrefcnt NSAPI nsDOMEventListener_Release(nsIDOMEventListener *iface)
 110 {
 111     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 112
 113     return release_listener(This->This);
 114 }
 115
 116 static BOOL is_doc_child_focus(NSContainer *nscontainer)
 117 {
 118     HWND hwnd;
 119
 120     for(hwnd = GetFocus(); hwnd && hwnd != nscontainer->hwnd; hwnd = GetParent(hwnd));
 121
 122     return hwnd != NULL;
 123 }
 124
 125 static nsresult NSAPI handle_blur(nsIDOMEventListener *iface, nsIDOMEvent *event)
 126 {
 127     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 128     HTMLDocumentNode *doc = This->This->doc;
 129     HTMLDocumentObj *doc_obj;
 130
 131     TRACE("(%p)\n", doc);
 132
 133     if(!doc || !doc->basedoc.doc_obj)
 134         return NS_ERROR_FAILURE;
 135     doc_obj = doc->basedoc.doc_obj;
 136
 137     if(doc_obj->focus && !is_doc_child_focus(doc_obj->nscontainer)) {
 138         doc_obj->focus = FALSE;
 139         notif_focus(doc_obj);
 140     }
 141
 142     return NS_OK;
 143 }
 144
 145 static nsresult NSAPI handle_focus(nsIDOMEventListener *iface, nsIDOMEvent *event)
 146 {
 147     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 148     HTMLDocumentNode *doc = This->This->doc;
 149     HTMLDocumentObj *doc_obj;
 150
 151     TRACE("(%p)\n", doc);
 152
 153     if(!doc)
 154         return NS_ERROR_FAILURE;
 155     doc_obj = doc->basedoc.doc_obj;
 156
 157     if(!doc_obj->focus) {
 158         doc_obj->focus = TRUE;
 159         notif_focus(doc_obj);
 160     }
 161
 162     return NS_OK;
 163 }
 164
 165 static nsresult NSAPI handle_keypress(nsIDOMEventListener *iface,
 166         nsIDOMEvent *event)
 167 {
 168     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 169     HTMLDocumentNode *doc = This->This->doc;
 170     HTMLDocumentObj *doc_obj;
 171
 172     if(!doc)
 173         return NS_ERROR_FAILURE;
 174     doc_obj = doc->basedoc.doc_obj;
 175
 176     TRACE("(%p)->(%p)\n", doc, event);
 177
 178     update_doc(&doc_obj->basedoc, UPDATE_UI);
 179     if(doc_obj->usermode == EDITMODE)
 180         handle_edit_event(&doc_obj->basedoc, event);
 181
 182     return NS_OK;
 183 }
 184
 185 static void handle_docobj_load(HTMLDocumentObj *doc)
 186 {
 187     IOleCommandTarget *olecmd = NULL;
 188     HRESULT hres;
 189
 190     if(doc->nscontainer->editor_controller) {
 191         nsIController_Release(doc->nscontainer->editor_controller);
 192         doc->nscontainer->editor_controller = NULL;
 193     }
 194
 195     if(doc->usermode == EDITMODE)
 196         handle_edit_load(&doc->basedoc);
 197
 198     if(doc->client) {
 199         hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
 200         if(FAILED(hres))
 201             olecmd = NULL;
 202     }
 203
 204     if(doc->download_state) {
 205         if(olecmd) {
 206             VARIANT progress;
 207
 208             V_VT(&progress) = VT_I4;
 209             V_I4(&progress) = 0;
 210             IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_SETPROGRESSPOS,
 211                     OLECMDEXECOPT_DONTPROMPTUSER, &progress, NULL);
 212         }
 213
 214         set_download_state(doc, 0);
 215     }
 216
 217     if(olecmd) {
 218         IOleCommandTarget_Exec(olecmd, &CGID_ShellDocView, 103, 0, NULL, NULL);
 219         IOleCommandTarget_Exec(olecmd, &CGID_MSHTML, IDM_PARSECOMPLETE, 0, NULL, NULL);
 220         IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_HTTPEQUIV_DONE, 0, NULL, NULL);
 221
 222         IOleCommandTarget_Release(olecmd);
 223     }
 224 }
 225
 226 static nsresult NSAPI handle_load(nsIDOMEventListener *iface, nsIDOMEvent *event)
 227 {
 228     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 229     HTMLDocumentNode *doc = This->This->doc;
 230     nsIDOMHTMLElement *nsbody = NULL;
 231     HTMLDocumentObj *doc_obj = NULL;
 232
 233     TRACE("(%p)\n", doc);
 234
 235     if(!doc || !doc->basedoc.window)
 236         return NS_ERROR_FAILURE;
 237     if(doc->basedoc.doc_obj && doc->basedoc.doc_obj->basedoc.doc_node == doc)
 238         doc_obj = doc->basedoc.doc_obj;
 239
 240     connect_scripts(doc->basedoc.window);
 241
 242     if(doc_obj)
 243         handle_docobj_load(doc_obj);
 244
 245     set_ready_state(doc->basedoc.window, READYSTATE_COMPLETE);
 246
 247     if(doc_obj) {
 248         if(doc_obj->view_sink)
 249             IAdviseSink_OnViewChange(doc_obj->view_sink, DVASPECT_CONTENT, -1);
 250
 251         set_statustext(doc_obj, IDS_STATUS_DONE, NULL);
 252
 253         update_title(doc_obj);
 254     }
 255
 256     if(doc_obj && doc_obj->usermode!=EDITMODE && doc_obj->doc_object_service)
 257         IDocObjectService_FireDocumentComplete(doc_obj->doc_object_service,
 258                 &doc->basedoc.window->IHTMLWindow2_iface, 0);
 259
 260     if(!doc->nsdoc) {
 261         ERR("NULL nsdoc\n");
 262         return NS_ERROR_FAILURE;
 263     }
 264
 265     nsIDOMHTMLDocument_GetBody(doc->nsdoc, &nsbody);
 266     if(nsbody) {
 267         fire_event(doc, EVENTID_LOAD, TRUE, (nsIDOMNode*)nsbody, event);
 268         nsIDOMHTMLElement_Release(nsbody);
 269     }
 270
 271     return NS_OK;
 272 }
 273
 274 static nsresult NSAPI handle_htmlevent(nsIDOMEventListener *iface, nsIDOMEvent *event)
 275 {
 276     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 277     HTMLDocumentNode *doc = This->This->doc;
 278     const PRUnichar *type;
 279     nsIDOMEventTarget *event_target;
 280     nsIDOMNode *nsnode;
 281     nsAString type_str;
 282     eventid_t eid;
 283     nsresult nsres;
 284
 285     TRACE("\n");
 286
 287     nsAString_Init(&type_str, NULL);
 288     nsIDOMEvent_GetType(event, &type_str);
 289     nsAString_GetData(&type_str, &type);
 290     eid = str_to_eid(type);
 291     nsAString_Finish(&type_str);
 292
 293     nsres = nsIDOMEvent_GetTarget(event, &event_target);
 294     if(NS_FAILED(nsres) || !event_target) {
 295         ERR("GetEventTarget failed: %08x\n", nsres);
 296         return NS_OK;
 297     }
 298
 299     nsres = nsIDOMEventTarget_QueryInterface(event_target, &IID_nsIDOMNode, (void**)&nsnode);
 300     nsIDOMEventTarget_Release(event_target);
 301     if(NS_FAILED(nsres)) {
 302         ERR("Could not get nsIDOMNode: %08x\n", nsres);
 303         return NS_OK;
 304     }
 305
 306     fire_event(doc, eid, TRUE, nsnode, event);
 307
 308     nsIDOMNode_Release(nsnode);
 309
 310     return NS_OK;
 311 }
 312
 313 #define EVENTLISTENER_VTBL(handler) \
 314     { \
 315         nsDOMEventListener_QueryInterface, \
 316         nsDOMEventListener_AddRef, \
 317         nsDOMEventListener_Release, \
 318         handler, \
 319     }
 320
 321 static const nsIDOMEventListenerVtbl blur_vtbl =      EVENTLISTENER_VTBL(handle_blur);
 322 static const nsIDOMEventListenerVtbl focus_vtbl =     EVENTLISTENER_VTBL(handle_focus);
 323 static const nsIDOMEventListenerVtbl keypress_vtbl =  EVENTLISTENER_VTBL(handle_keypress);
 324 static const nsIDOMEventListenerVtbl load_vtbl =      EVENTLISTENER_VTBL(handle_load);
 325 static const nsIDOMEventListenerVtbl htmlevent_vtbl = EVENTLISTENER_VTBL(handle_htmlevent);
 326
 327 static void init_event(nsIDOMEventTarget *target, const PRUnichar *type,
 328         nsIDOMEventListener *listener, BOOL capture)
 329 {
 330     nsAString type_str;
 331     nsresult nsres;
 332
 333     nsAString_InitDepend(&type_str, type);
 334     nsres = nsIDOMEventTarget_AddEventListener(target, &type_str, listener, capture);
 335     nsAString_Finish(&type_str);
 336     if(NS_FAILED(nsres))
 337         ERR("AddEventTarget failed: %08x\n", nsres);
 338
 339 }
 340
 341 static void init_listener(nsEventListener *This, nsDocumentEventListener *listener,
 342         const nsIDOMEventListenerVtbl *vtbl)
 343 {
 344     This->nsIDOMEventListener_iface.lpVtbl = vtbl;
 345     This->This = listener;
 346 }
 347
 348 void add_nsevent_listener(HTMLDocumentNode *doc, nsIDOMNode *nsnode, LPCWSTR type)
 349 {
 350     nsIDOMEventTarget *target;
 351     nsresult nsres;
 352
 353     if(nsnode)
 354         nsres = nsIDOMNode_QueryInterface(nsnode, &IID_nsIDOMEventTarget, (void**)&target);
 355     else
 356         nsres = nsIDOMWindow_QueryInterface(doc->basedoc.window->nswindow, &IID_nsIDOMEventTarget, (void**)&target);
 357     if(NS_FAILED(nsres)) {
 358         ERR("Could not get nsIDOMEventTarget interface: %08x\n", nsres);
 359         return;
 360     }
 361
 362     init_event(target, type, &doc->nsevent_listener->htmlevent_listener.nsIDOMEventListener_iface,
 363             TRUE);
 364     nsIDOMEventTarget_Release(target);
 365 }
 366
 367 void release_nsevents(HTMLDocumentNode *doc)
 368 {
 369     if(doc->nsevent_listener) {
 370         doc->nsevent_listener->doc = NULL;
 371         release_listener(doc->nsevent_listener);
 372         doc->nsevent_listener = NULL;
 373     }
 374 }
 375
 376 void init_nsevents(HTMLDocumentNode *doc)
 377 {
 378     nsDocumentEventListener *listener;
 379     nsIDOMEventTarget *target;
 380     nsresult nsres;
 381
 382     static const PRUnichar wsz_blur[]      = {'b','l','u','r',0};
 383     static const PRUnichar wsz_focus[]     = {'f','o','c','u','s',0};
 384     static const PRUnichar wsz_keypress[]  = {'k','e','y','p','r','e','s','s',0};
 385     static const PRUnichar wsz_load[]      = {'l','o','a','d',0};
 386
 387     listener = heap_alloc(sizeof(nsDocumentEventListener));
 388     if(!listener)
 389         return;
 390
 391     listener->ref = 1;
 392     listener->doc = doc;
 393
 394     init_listener(&listener->blur_listener,        listener, &blur_vtbl);
 395     init_listener(&listener->focus_listener,       listener, &focus_vtbl);
 396     init_listener(&listener->keypress_listener,    listener, &keypress_vtbl);
 397     init_listener(&listener->load_listener,        listener, &load_vtbl);
 398     init_listener(&listener->htmlevent_listener,   listener, &htmlevent_vtbl);
 399
 400     doc->nsevent_listener = listener;
 401
 402     nsres = nsIDOMWindow_QueryInterface(doc->basedoc.window->nswindow, &IID_nsIDOMEventTarget, (void**)&target);
 403     if(NS_FAILED(nsres)) {
 404         ERR("Could not get nsIDOMEventTarget interface: %08x\n", nsres);
 405         return;
 406     }
 407
 408     init_event(target, wsz_blur,     &listener->blur_listener.nsIDOMEventListener_iface,     TRUE);
 409     init_event(target, wsz_focus,    &listener->focus_listener.nsIDOMEventListener_iface,    TRUE);
 410     init_event(target, wsz_keypress, &listener->keypress_listener.nsIDOMEventListener_iface, FALSE);
 411     init_event(target, wsz_load,     &listener->load_listener.nsIDOMEventListener_iface,     TRUE);
 412
 413     nsIDOMEventTarget_Release(target);
 414 }