mshtml: Implement synchronous XMLHttpRequest.

dlls/mshtml/htmlwindow.c

@@ -3294,6 +3294,8 @@ static HRESULT WINAPI window_private_postMessage(IWineHTMLWindowPrivate *iface,
             return E_OUTOFMEMORY;
         }
 
+        /* Because message events can be sent to different windows, they get blocked by any context */
+        task->header.thread_blocked = TRUE;
         task->event = event;
         return push_event_task(&task->header, window, post_message_proc, post_message_destr, window->task_magic);
     }

dlls/mshtml/mshtml_private.h

@@ -607,6 +607,7 @@ struct HTMLInnerWindow {
     VARIANT performance;
     HTMLPerformanceTiming *performance_timing;
 
+    unsigned blocking_depth;
     unsigned parser_callback_cnt;
     struct list script_queue;
 
@@ -1288,6 +1289,7 @@ typedef void (*event_task_proc_t)(event_task_t*);
 
 struct event_task_t {
     LONG target_magic;
+    BOOL thread_blocked;
     event_task_proc_t proc;
     event_task_proc_t destr;
     struct list entry;
@@ -1304,11 +1306,14 @@ typedef struct {
     struct list task_list;
     struct list event_task_list;
     struct list timer_list;
+    struct list *pending_xhr_events_tail;
     struct wine_rb_tree session_storage_map;
+    void *blocking_xhr;
 } thread_data_t;
 
 thread_data_t *get_thread_data(BOOL) DECLSPEC_HIDDEN;
 HWND get_thread_hwnd(void) DECLSPEC_HIDDEN;
+void unblock_tasks_and_timers(thread_data_t*) DECLSPEC_HIDDEN;
 int session_storage_map_cmp(const void*,const struct wine_rb_entry*) DECLSPEC_HIDDEN;
 void destroy_session_storage(thread_data_t*) DECLSPEC_HIDDEN;
 

dlls/mshtml/task.c

@@ -96,6 +96,13 @@ HRESULT push_event_task(event_task_t *task, HTMLInnerWindow *window, event_task_
     return S_OK;
 }
 
+static void unlink_event_task(event_task_t *task, thread_data_t *thread_data)
+{
+    if(thread_data->pending_xhr_events_tail == &task->entry)
+        thread_data->pending_xhr_events_tail = task->entry.prev;
+    list_remove(&task->entry);
+}
+
 static void release_task_timer(HWND thread_hwnd, task_timer_t *timer)
 {
     list_remove(&timer->entry);
@@ -140,7 +147,7 @@ void remove_target_tasks(LONG target)
     LIST_FOR_EACH_SAFE(liter, ltmp, &thread_data->event_task_list) {
         event_task_t *task = LIST_ENTRY(liter, event_task_t, entry);
         if(task->target_magic == target) {
-            list_remove(&task->entry);
+            unlink_event_task(task, thread_data);
             release_event_task(task);
         }
     }
@@ -303,7 +310,7 @@ static LRESULT process_timer(void)
     thread_data = get_thread_data(FALSE);
     assert(thread_data != NULL);
 
-    if(list_empty(&thread_data->timer_list)) {
+    if(list_empty(&thread_data->timer_list) || thread_data->blocking_xhr) {
         KillTimer(thread_data->thread_hwnd, TIMER_ID);
         return 0;
     }
@@ -338,7 +345,7 @@ static LRESULT process_timer(void)
         call_timer_disp(disp, timer_type);
 
         IDispatch_Release(disp);
-    }while(!list_empty(&thread_data->timer_list));
+    }while(!list_empty(&thread_data->timer_list) && !thread_data->blocking_xhr);
 
     KillTimer(thread_data->thread_hwnd, TIMER_ID);
     return 0;
@@ -366,15 +373,18 @@ static LRESULT WINAPI hidden_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lPa
                 continue;
             }
 
-            head = list_head(&thread_data->event_task_list);
-            if(head) {
+            head = &thread_data->event_task_list;
+            while((head = list_next(&thread_data->event_task_list, head))) {
                 event_task_t *task = LIST_ENTRY(head, event_task_t, entry);
-                list_remove(&task->entry);
+
+                if((!task->thread_blocked || !thread_data->blocking_xhr) && !task->window->blocking_depth) {
+                    unlink_event_task(task, thread_data);
                     task->proc(task);
                     release_event_task(task);
-                continue;
+                    break;
                 }
-
+            }
+            if(!head)
                 break;
         }
         return 0;
@@ -451,6 +461,7 @@ thread_data_t *get_thread_data(BOOL create)
         list_init(&thread_data->task_list);
         list_init(&thread_data->event_task_list);
         list_init(&thread_data->timer_list);
+        thread_data->pending_xhr_events_tail = &thread_data->event_task_list;
         wine_rb_init(&thread_data->session_storage_map, session_storage_map_cmp);
     }
 
@@ -467,3 +478,16 @@ ULONGLONG get_time_stamp(void)
     GetSystemTimeAsFileTime(&time);
     return (((ULONGLONG)time.dwHighDateTime << 32) + time.dwLowDateTime) / 10000 - time_epoch;
 }
+
+void unblock_tasks_and_timers(thread_data_t *thread_data)
+{
+    if(!list_empty(&thread_data->event_task_list))
+        PostMessageW(thread_data->thread_hwnd, WM_PROCESSTASK, 0, 0);
+
+    if(!thread_data->blocking_xhr && !list_empty(&thread_data->timer_list)) {
+        task_timer_t *timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
+        DWORD tc = GetTickCount();
+
+        SetTimer(thread_data->thread_hwnd, TIMER_ID, timer->time > tc ? timer->time - tc : 0, NULL);
+    }
+}

dlls/mshtml/tests/rsrc.rc

@@ -88,6 +88,9 @@ doc_with_prop_ie9.html HTML "doc_with_prop_ie9.html"
 /* @makedep: iframe.html */
 iframe.html HTML "iframe.html"
 
+/* @makedep: xhr_iframe.html */
+xhr_iframe.html HTML "xhr_iframe.html"
+
 /* For res: protocol test: */
 
 /* @makedep: jstest.html */

dlls/mshtml/tests/script.c

@@ -3675,6 +3675,7 @@ typedef struct {
     IInternetProtocolSink *sink;
     BINDINFO bind_info;
 
+    HANDLE delay_event;
     BSTR content_type;
     IStream *stream;
     char *data;
@@ -3685,11 +3686,16 @@ typedef struct {
     IUri *uri;
 } ProtocolHandler;
 
+static ProtocolHandler *delay_with_signal_handler;
+
 static DWORD WINAPI delay_proc(void *arg)
 {
     PROTOCOLDATA protocol_data = {PI_FORCE_ASYNC};
     ProtocolHandler *protocol_handler = arg;
 
+    if(protocol_handler->delay_event)
+        WaitForSingleObject(protocol_handler->delay_event, INFINITE);
+    else
         Sleep(protocol_handler->delay);
     protocol_handler->delay = -1;
     IInternetProtocolSink_Switch(protocol_handler->sink, &protocol_data);
@@ -3735,7 +3741,7 @@ static void report_data(ProtocolHandler *This)
 
         IHttpNegotiate_Release(http_negotiate);
 
-        if(This->delay) {
+        if(This->delay || This->delay_event) {
             IInternetProtocolEx_AddRef(&This->IInternetProtocolEx_iface);
             QueueUserWorkItem(delay_proc, This, 0);
             return;
@@ -3880,6 +3886,8 @@ static ULONG WINAPI Protocol_Release(IInternetProtocolEx *iface)
     LONG ref = InterlockedDecrement(&This->ref);
 
     if(!ref) {
+        if(This->delay_event)
+            CloseHandle(This->delay_event);
         if(This->sink)
             IInternetProtocolSink_Release(This->sink);
         if(This->stream)
@@ -4061,8 +4069,20 @@ static HRESULT WINAPI ProtocolEx_StartEx(IInternetProtocolEx *iface, IUri *uri,
 
     hres = IUri_GetQuery(uri, &query);
     if(SUCCEEDED(hres)) {
-        if(!lstrcmpW(query, L"?delay"))
+        if(!wcscmp(query, L"?delay"))
             This->delay = 1000;
+        else if(!wcscmp(query, L"?delay_with_signal")) {
+            if(delay_with_signal_handler) {
+                ProtocolHandler *delayed = delay_with_signal_handler;
+                delay_with_signal_handler = NULL;
+                SetEvent(delayed->delay_event);
+                This->delay = 30;
+            }else {
+                delay_with_signal_handler = This;
+                This->delay_event = CreateEventW(NULL, FALSE, FALSE, NULL);
+                ok(This->delay_event != NULL, "CreateEvent failed: %08lx\n", GetLastError());
+            }
+        }
         else if(!wcsncmp(query, L"?content-type=", sizeof("?content-type=")-1))
             This->content_type = SysAllocString(query + sizeof("?content-type=")-1);
         SysFreeString(query);

dlls/mshtml/tests/xhr.js

@@ -76,6 +76,145 @@ function test_xhr() {
     xhr.send(xml);
 }
 
+function test_sync_xhr() {
+    var async_xhr, async_xhr2, sync_xhr, sync_xhr_in_async, sync_xhr_nested, a = [ 0 ];
+    var async_xhr_clicked = false, doc_dblclicked = false;
+    function onmsg(e) { a.push("msg" + e.data); }
+    document.ondblclick = function() { doc_dblclicked = true; };
+    window.addEventListener("message", onmsg);
+    window.postMessage("1", "*");
+    window.setTimeout(function() { a.push("timeout"); }, 0);
+    window.postMessage("2", "*");
+    a.push(1);
+
+    async_xhr = new XMLHttpRequest();
+    async_xhr.open("POST", "echo.php", true);
+    async_xhr.onreadystatechange = function() {
+        if(async_xhr.readyState < 3)
+            return;
+        a.push("async_xhr(" + async_xhr.readyState + ")");
+        ok(async_xhr2.readyState === 1, "async_xhr2.readyState = " + async_xhr2.readyState);
+        if(async_xhr.readyState == 4) {
+            window.postMessage("_async", "*");
+
+            sync_xhr_in_async = new XMLHttpRequest();
+            sync_xhr_in_async.open("POST", "echo.php", false);
+            sync_xhr_in_async.onreadystatechange = function() { if(sync_xhr_in_async.readyState == 4) a.push("sync_xhr_in_async"); };
+            sync_xhr_in_async.setRequestHeader("X-Test", "True");
+            sync_xhr_in_async.send("sync_in_async");
+        }
+    };
+    async_xhr.addEventListener("click", function() { async_xhr_clicked = true; });
+    async_xhr.setRequestHeader("X-Test", "True");
+    async_xhr.send("1234");
+    a.push(2);
+
+    async_xhr2 = new XMLHttpRequest();
+    async_xhr2.open("POST", "echo.php?delay_with_signal", true);
+    async_xhr2.onreadystatechange = function() {
+        if(async_xhr2.readyState < 3)
+            return;
+        a.push("async_xhr2(" + async_xhr2.readyState + ")");
+        ok(async_xhr.readyState === 4, "async_xhr.readyState = " + async_xhr.readyState);
+    };
+    async_xhr2.setRequestHeader("X-Test", "True");
+    async_xhr2.send("foobar");
+    a.push(3);
+
+    sync_xhr = new XMLHttpRequest();
+    sync_xhr.open("POST", "echo.php?delay_with_signal", false);
+    sync_xhr.onreadystatechange = function() {
+        a.push("sync_xhr(" + sync_xhr.readyState + ")");
+        ok(async_xhr.readyState === 1, "async_xhr.readyState in sync_xhr handler = " + async_xhr.readyState);
+        ok(async_xhr2.readyState === 1, "async_xhr2.readyState in sync_xhr handler = " + async_xhr2.readyState);
+        if(sync_xhr.readyState < 4)
+            return;
+        window.setTimeout(function() { a.push("timeout_sync"); }, 0);
+        window.postMessage("_sync", "*");
+
+        sync_xhr_nested = new XMLHttpRequest();
+        sync_xhr_nested.open("POST", "echo.php", false);
+        sync_xhr_nested.onreadystatechange = function() {
+            a.push("nested(" + sync_xhr_nested.readyState + ")");
+            if(sync_xhr_nested.readyState == 4) {
+                window.setTimeout(function() { a.push("timeout_nested"); }, 0);
+                window.postMessage("_nested", "*");
+
+                var e = document.createEvent("Event");
+                e.initEvent("click", true, false);
+                ok(async_xhr_clicked === false, "async_xhr click fired before dispatch");
+                async_xhr.dispatchEvent(e);
+                ok(async_xhr_clicked === true, "async_xhr click not fired immediately");
+                if(document.fireEvent) {
+                    ok(doc_dblclicked === false, "document dblclick fired before dispatch");
+                    document.fireEvent("ondblclick", document.createEventObject());
+                    ok(doc_dblclicked === true, "document dblclick not fired immediately");
+                }
+            }
+        };
+        sync_xhr_nested.setRequestHeader("X-Test", "True");
+        sync_xhr_nested.send("nested");
+    };
+    sync_xhr.setRequestHeader("X-Test", "True");
+    sync_xhr.send("abcd");
+    a.push(4);
+
+    window.setTimeout(function() {
+        var r = a.join(",");
+        todo_wine_if(document.documentMode < 10).
+        ok(r === "0,1,2,3," + (document.documentMode < 10 ? "sync_xhr(1),sync_xhr(2),sync_xhr(3)," : "") +
+                 "sync_xhr(4)," + (document.documentMode < 10 ? "nested(1),nested(2),nested(3)," : "") +
+                 "nested(4),4,async_xhr(3),async_xhr(4),sync_xhr_in_async,async_xhr2(3),async_xhr2(4)," +
+                 "msg1,msg2,msg_sync,msg_nested,msg_async,timeout,timeout_sync,timeout_nested",
+           "unexpected order: " + r);
+        window.removeEventListener("message", onmsg);
+        document.ondblclick = null;
+        a = [ 0 ];
+
+        // Events dispatched to other iframes are not blocked by a send() in another context,
+        // except for async XHR events (which are a special case again), messages, and timeouts.
+        var iframe = document.createElement("iframe"), iframe2 = document.createElement("iframe");
+        iframe.onload = function() {
+            iframe2.onload = function() {
+                function onmsg(e) {
+                    a.push(e.data);
+                    if(e.data === "echo")
+                        iframe2.contentWindow.postMessage("sync_xhr", "*");
+                };
+
+                window.setTimeout(function() {
+                    var r = a.join(",");
+                    ok(r === "0,1,async_xhr,echo,sync_xhr(pre-send),sync_xhr(DONE),sync_xhr,async_xhr(DONE)",
+                       "[iframes 1] unexpected order: " + r);
+                    a = [ 0 ];
+
+                    window.setTimeout(function() {
+                        var r = a.join(",");
+                        ok(r === "0,1,echo,blank(DONE),sync_xhr(pre-send),sync_xhr(DONE),sync_xhr",
+                           "[iframes 2] unexpected order: " + r);
+                        window.removeEventListener("message", onmsg);
+                        next_test();
+                    }, 0);
+
+                    iframe.onload = function() { a.push("blank(DONE)"); };
+                    iframe.src = "blank.html?delay_with_signal";
+                    iframe2.contentWindow.postMessage("echo", "*");
+                    a.push(1);
+                }, 0);
+
+                window.addEventListener("message", onmsg);
+                iframe.contentWindow.postMessage("async_xhr", "*");
+                iframe2.contentWindow.postMessage("echo", "*");
+                a.push(1);
+            };
+            iframe2.src = "xhr_iframe.html";
+            document.body.appendChild(iframe2);
+        };
+        iframe.src = "xhr_iframe.html";
+        document.body.appendChild(iframe);
+    }, 0);
+}
+
 function test_content_types() {
     var xhr = new XMLHttpRequest(), types, i = 0, override = false;
     var v = document.documentMode;
@@ -291,6 +430,7 @@ function test_response() {
 
 var tests = [
     test_xhr,
+    test_sync_xhr,
     test_content_types,
     test_abort,
     test_timeout,

dlls/mshtml/tests/xhr_iframe.html

+<html><head><script type="text/javascript">window.onmessage = function(e)
+{
+    if(e.data === "echo")
+        parent.postMessage("echo", "*");
+    else if(e.data === "async_xhr") {
+        var async_xhr = new XMLHttpRequest();
+        async_xhr.open("POST", "echo.php?delay_with_signal", true);
+        async_xhr.onreadystatechange = function() { if(async_xhr.readyState == 4) parent.postMessage("async_xhr(DONE)", "*"); };
+        async_xhr.setRequestHeader("X-Test", "True");
+        async_xhr.send("foo");
+        parent.postMessage("async_xhr", "*");
+    }
+    else if(e.data === "sync_xhr") {
+        var sync_xhr = new XMLHttpRequest();
+        sync_xhr.open("POST", "echo.php?delay_with_signal", false);
+        sync_xhr.onreadystatechange = function() { if(sync_xhr.readyState == 4) parent.postMessage("sync_xhr(DONE)", "*"); };
+        sync_xhr.setRequestHeader("X-Test", "True");
+        parent.postMessage("sync_xhr(pre-send)", "*");
+        sync_xhr.send("bar");
+        parent.postMessage("sync_xhr", "*");
+    }
+}
+</script><body></body></html>

dlls/mshtml/tests/xmlhttprequest.c

@@ -673,18 +673,12 @@ static void test_sync_xhr(IHTMLDocument2 *doc, const WCHAR *xml_url, const WCHAR
 
     SET_EXPECT(xmlhttprequest_onreadystatechange_opened);
     hres = IHTMLXMLHttpRequest_open(xhr, method, url, vbool, vempty, vempty);
-    todo_wine ok(hres == S_OK, "open failed: %08lx\n", hres); /* Gecko 30+ only supports async */
-    todo_wine CHECK_CALLED(xmlhttprequest_onreadystatechange_opened);
+    ok(hres == S_OK, "open failed: %08lx\n", hres);
+    CHECK_CALLED(xmlhttprequest_onreadystatechange_opened);
 
     SysFreeString(method);
     SysFreeString(url);
 
-    if(FAILED(hres)) {
-        IHTMLXMLHttpRequest_Release(xhr);
-        xhr = NULL;
-        return;
-    }
-
     text = (BSTR)0xdeadbeef;
     hres = IHTMLXMLHttpRequest_getAllResponseHeaders(xhr, &text);
     ok(hres == E_FAIL, "got %08lx\n", hres);
@@ -718,11 +712,11 @@ static void test_sync_xhr(IHTMLDocument2 *doc, const WCHAR *xml_url, const WCHAR
     loading_cnt = 0;
     hres = IHTMLXMLHttpRequest_send(xhr, vempty);
     ok(hres == S_OK, "send failed: %08lx\n", hres);
-    CHECK_CALLED(xmlhttprequest_onreadystatechange_opened);
-    CHECK_CALLED(xmlhttprequest_onreadystatechange_headers_received);
-    CHECK_CALLED(xmlhttprequest_onreadystatechange_loading);
+    todo_wine CHECK_CALLED(xmlhttprequest_onreadystatechange_opened);
+    todo_wine CHECK_CALLED(xmlhttprequest_onreadystatechange_headers_received);
+    todo_wine CHECK_CALLED(xmlhttprequest_onreadystatechange_loading);
     CHECK_CALLED(xmlhttprequest_onreadystatechange_done);
-    ok(loading_cnt == 1, "loading_cnt = %d\n", loading_cnt);
+    todo_wine ok(loading_cnt == 1, "loading_cnt = %d\n", loading_cnt);
 
     text = NULL;
     hres = IHTMLXMLHttpRequest_getResponseHeader(xhr, content_type, &text);