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     HRESULT hres;
 188
 189     if(doc->nscontainer->editor_controller) {
 190         nsIController_Release(doc->nscontainer->editor_controller);
 191         doc->nscontainer->editor_controller = NULL;
 192     }
 193
 194     if(doc->usermode == EDITMODE)
 195         handle_edit_load(&doc->basedoc);
 196
 197     if(doc->client) {
 198         IOleCommandTarget *olecmd = NULL;
 199
 200         hres = IOleClientSite_QueryInterface(doc->client, &IID_IOleCommandTarget, (void**)&olecmd);
 201         if(SUCCEEDED(hres)) {
 202             if(doc->download_state) {
 203                 VARIANT state, progress;
 204
 205                 V_VT(&progress) = VT_I4;
 206                 V_I4(&progress) = 0;
 207                 IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_SETPROGRESSPOS,
 208                         OLECMDEXECOPT_DONTPROMPTUSER, &progress, NULL);
 209
 210                 V_VT(&state) = VT_I4;
 211                 V_I4(&state) = 0;
 212                 IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_SETDOWNLOADSTATE,
 213                         OLECMDEXECOPT_DONTPROMPTUSER, &state, NULL);
 214             }
 215
 216             IOleCommandTarget_Exec(olecmd, &CGID_ShellDocView, 103, 0, NULL, NULL);
 217             IOleCommandTarget_Exec(olecmd, &CGID_MSHTML, IDM_PARSECOMPLETE, 0, NULL, NULL);
 218             IOleCommandTarget_Exec(olecmd, NULL, OLECMDID_HTTPEQUIV_DONE, 0, NULL, NULL);
 219
 220             IOleCommandTarget_Release(olecmd);
 221         }
 222     }
 223
 224     doc->download_state = 0;
 225 }
 226
 227 static nsresult NSAPI handle_load(nsIDOMEventListener *iface, nsIDOMEvent *event)
 228 {
 229     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 230     HTMLDocumentNode *doc = This->This->doc;
 231     nsIDOMHTMLElement *nsbody = NULL;
 232     HTMLDocumentObj *doc_obj = NULL;
 233
 234     TRACE("(%p)\n", doc);
 235
 236     if(!doc || !doc->basedoc.window)
 237         return NS_ERROR_FAILURE;
 238     if(doc->basedoc.doc_obj && doc->basedoc.doc_obj->basedoc.doc_node == doc)
 239         doc_obj = doc->basedoc.doc_obj;
 240
 241     connect_scripts(doc->basedoc.window);
 242
 243     if(doc_obj)
 244         handle_docobj_load(doc_obj);
 245
 246     set_ready_state(doc->basedoc.window, READYSTATE_COMPLETE);
 247
 248     if(doc_obj) {
 249         if(doc_obj->view_sink)
 250             IAdviseSink_OnViewChange(doc_obj->view_sink, DVASPECT_CONTENT, -1);
 251
 252         set_statustext(doc_obj, IDS_STATUS_DONE, NULL);
 253
 254         update_title(doc_obj);
 255     }
 256
 257     if(!doc->nsdoc) {
 258         ERR("NULL nsdoc\n");
 259         return NS_ERROR_FAILURE;
 260     }
 261
 262     nsIDOMHTMLDocument_GetBody(doc->nsdoc, &nsbody);
 263     if(nsbody) {
 264         fire_event(doc, EVENTID_LOAD, TRUE, (nsIDOMNode*)nsbody, event);
 265         nsIDOMHTMLElement_Release(nsbody);
 266     }
 267
 268     return NS_OK;
 269 }
 270
 271 static nsresult NSAPI handle_htmlevent(nsIDOMEventListener *iface, nsIDOMEvent *event)
 272 {
 273     nsEventListener *This = impl_from_nsIDOMEventListener(iface);
 274     HTMLDocumentNode *doc = This->This->doc;
 275     const PRUnichar *type;
 276     nsIDOMEventTarget *event_target;
 277     nsIDOMNode *nsnode;
 278     nsAString type_str;
 279     eventid_t eid;
 280     nsresult nsres;
 281
 282     TRACE("\n");
 283
 284     nsAString_Init(&type_str, NULL);
 285     nsIDOMEvent_GetType(event, &type_str);
 286     nsAString_GetData(&type_str, &type);
 287     eid = str_to_eid(type);
 288     nsAString_Finish(&type_str);
 289
 290     nsres = nsIDOMEvent_GetTarget(event, &event_target);
 291     if(NS_FAILED(nsres) || !event_target) {
 292         ERR("GetEventTarget failed: %08x\n", nsres);
 293         return NS_OK;
 294     }
 295
 296     nsres = nsIDOMEventTarget_QueryInterface(event_target, &IID_nsIDOMNode, (void**)&nsnode);
 297     nsIDOMEventTarget_Release(event_target);
 298     if(NS_FAILED(nsres)) {
 299         ERR("Could not get nsIDOMNode: %08x\n", nsres);
 300         return NS_OK;
 301     }
 302
 303     fire_event(doc, eid, TRUE, nsnode, event);
 304
 305     nsIDOMNode_Release(nsnode);
 306
 307     return NS_OK;
 308 }
 309
 310 #define EVENTLISTENER_VTBL(handler) \
 311     { \
 312         nsDOMEventListener_QueryInterface, \
 313         nsDOMEventListener_AddRef, \
 314         nsDOMEventListener_Release, \
 315         handler, \
 316     }
 317
 318 static const nsIDOMEventListenerVtbl blur_vtbl =      EVENTLISTENER_VTBL(handle_blur);
 319 static const nsIDOMEventListenerVtbl focus_vtbl =     EVENTLISTENER_VTBL(handle_focus);
 320 static const nsIDOMEventListenerVtbl keypress_vtbl =  EVENTLISTENER_VTBL(handle_keypress);
 321 static const nsIDOMEventListenerVtbl load_vtbl =      EVENTLISTENER_VTBL(handle_load);
 322 static const nsIDOMEventListenerVtbl htmlevent_vtbl = EVENTLISTENER_VTBL(handle_htmlevent);
 323
 324 static void init_event(nsIDOMEventTarget *target, const PRUnichar *type,
 325         nsIDOMEventListener *listener, BOOL capture)
 326 {
 327     nsAString type_str;
 328     nsresult nsres;
 329
 330     nsAString_InitDepend(&type_str, type);
 331     nsres = nsIDOMEventTarget_AddEventListener(target, &type_str, listener, capture);
 332     nsAString_Finish(&type_str);
 333     if(NS_FAILED(nsres))
 334         ERR("AddEventTarget failed: %08x\n", nsres);
 335
 336 }
 337
 338 static void init_listener(nsEventListener *This, nsDocumentEventListener *listener,
 339         const nsIDOMEventListenerVtbl *vtbl)
 340 {
 341     This->nsIDOMEventListener_iface.lpVtbl = vtbl;
 342     This->This = listener;
 343 }
 344
 345 void add_nsevent_listener(HTMLDocumentNode *doc, nsIDOMNode *nsnode, LPCWSTR type)
 346 {
 347     nsIDOMEventTarget *target;
 348     nsresult nsres;
 349
 350     if(nsnode)
 351         nsres = nsIDOMNode_QueryInterface(nsnode, &IID_nsIDOMEventTarget, (void**)&target);
 352     else
 353         nsres = nsIDOMWindow_QueryInterface(doc->basedoc.window->nswindow, &IID_nsIDOMEventTarget, (void**)&target);
 354     if(NS_FAILED(nsres)) {
 355         ERR("Could not get nsIDOMEventTarget interface: %08x\n", nsres);
 356         return;
 357     }
 358
 359     init_event(target, type, &doc->nsevent_listener->htmlevent_listener.nsIDOMEventListener_iface,
 360             TRUE);
 361     nsIDOMEventTarget_Release(target);
 362 }
 363
 364 void release_nsevents(HTMLDocumentNode *doc)
 365 {
 366     if(doc->nsevent_listener) {
 367         doc->nsevent_listener->doc = NULL;
 368         release_listener(doc->nsevent_listener);
 369         doc->nsevent_listener = NULL;
 370     }
 371 }
 372
 373 void init_nsevents(HTMLDocumentNode *doc)
 374 {
 375     nsDocumentEventListener *listener;
 376     nsIDOMEventTarget *target;
 377     nsresult nsres;
 378
 379     static const PRUnichar wsz_blur[]      = {'b','l','u','r',0};
 380     static const PRUnichar wsz_focus[]     = {'f','o','c','u','s',0};
 381     static const PRUnichar wsz_keypress[]  = {'k','e','y','p','r','e','s','s',0};
 382     static const PRUnichar wsz_load[]      = {'l','o','a','d',0};
 383
 384     listener = heap_alloc(sizeof(nsDocumentEventListener));
 385     if(!listener)
 386         return;
 387
 388     listener->ref = 1;
 389     listener->doc = doc;
 390
 391     init_listener(&listener->blur_listener,        listener, &blur_vtbl);
 392     init_listener(&listener->focus_listener,       listener, &focus_vtbl);
 393     init_listener(&listener->keypress_listener,    listener, &keypress_vtbl);
 394     init_listener(&listener->load_listener,        listener, &load_vtbl);
 395     init_listener(&listener->htmlevent_listener,   listener, &htmlevent_vtbl);
 396
 397     doc->nsevent_listener = listener;
 398
 399     nsres = nsIDOMWindow_QueryInterface(doc->basedoc.window->nswindow, &IID_nsIDOMEventTarget, (void**)&target);
 400     if(NS_FAILED(nsres)) {
 401         ERR("Could not get nsIDOMEventTarget interface: %08x\n", nsres);
 402         return;
 403     }
 404
 405     init_event(target, wsz_blur,     &listener->blur_listener.nsIDOMEventListener_iface,     TRUE);
 406     init_event(target, wsz_focus,    &listener->focus_listener.nsIDOMEventListener_iface,    TRUE);
 407     init_event(target, wsz_keypress, &listener->keypress_listener.nsIDOMEventListener_iface, FALSE);
 408     init_event(target, wsz_load,     &listener->load_listener.nsIDOMEventListener_iface,     TRUE);
 409
 410     nsIDOMEventTarget_Release(target);
 411 }