[Webkit-unassigned] [Bug 113288] New: calls of endPrinting early in UIProcess crashes webprocess
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Mar 26 02:54:28 PDT 2013
https://bugs.webkit.org/show_bug.cgi?id=113288
Summary: calls of endPrinting early in UIProcess crashes
webprocess
Product: WebKit
Version: 528+ (Nightly build)
Platform: Unspecified
OS/Version: Unspecified
Status: UNCONFIRMED
Severity: Normal
Priority: P2
Component: Printing
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: prahal at yahoo.com
UI process :
Source/WebKit2/UIProcess/WebPageProxy.cpp
WebPageProxy::printFrame calls WebPageProxy::endPrinting
as print is async and has not complete before end of WebPageProxy::printFrame where WebPageProxy::endPrinting happens thus cannot print
(it will be called in webkitPrintOperation finish do we really need to call it while initiating the print operation ?)
also there seems to be no way to stop connected handlers via gtk printers enumeration from spawning after the webkit print operation is freed.
Local fix: I ended up commented endPrinting call in WebPageProxy::printFrame.
This fix early endPrint, thus no more destroy of the print operation gtk unix before gtk enumeration printers complete
(this fixes the segfault asgtkprint list_added_cb attached to printer_list no more call WebKit::WebPrintOperationGtkUnix::enumeratePrintersFunction
after the printer operation is destroyed. ) and print operation can reach the send job to printer step thus print happens.
WebProcess segfault of webkit enumerate handler after free of webkit print operation by UIProcess WebPageProxy printFrame sync call
to endPrinting (message to the WebProcess):
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff451bec7 in gtk_print_settings_get (settings=0x0, key=0x7ffff47a82c1 "printer")
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/gtk+/gtk/gtkprintsettings.c:174
174 return g_hash_table_lookup (settings->hash, key);
(gdb) bt
#0 0x00007ffff451bec7 in gtk_print_settings_get (settings=0x0, key=0x7ffff47a82c1 "printer")
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/gtk+/gtk/gtkprintsettings.c:174
#1 0x00007ffff451c35a in gtk_print_settings_get_printer (settings=0x0)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/gtk+/gtk/gtkprintsettings.c:528
#2 0x00007ffff5c30529 in WebKit::WebPrintOperationGtkUnix::enumeratePrintersFunction (printer=0x6674f0 [GtkPrinterCups], printOperation=
0x7fff812a8420)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/WebProcess/WebPage/gtk/WebPrintOperationGtk.cpp:61
#3 0x00007ffff46a2157 in list_added_cb (backend=0x118d650 [GtkPrintBackendCups], printer=0x6674f0 [GtkPrinterCups], printer_list=0x12b8e70)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/gtk+/gtk/gtkprinter.c:1129
#4 0x00007ffff295797d in g_cclosure_marshal_VOID__OBJECTv (closure=0x1484ba0, return_value=0x0, instance=0x118d650, args=0x7fffffffb848,
marshal_data=0x0, n_params=1, param_types=0x12b4bb0) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/gobject/gmarshal.c:1312
#5 0x00007ffff2952fa7 in _g_closure_invoke_va (closure=0x1484ba0, return_value=0x0, instance=0x118d650, args=0x7fffffffb848, n_params=1,
param_types=0x12b4bb0) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/gobject/gclosure.c:840
#6 0x00007ffff296eee2 in g_signal_emit_valist (instance=0x118d650, signal_id=303, detail=0, var_args=0x7fffffffb848)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/gobject/gsignal.c:3234
#7 0x00007ffff297023d in g_signal_emit_by_name (instance=0x118d650, detailed_signal=0x7fff80a757e3 "printer-added")
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/gobject/gsignal.c:3424
#8 0x00007fff80a6b1f2 in cups_request_printer_list_cb (cups_backend=0x118d650 [GtkPrintBackendCups], result=0x147a4a0, user_data=0x1483e40)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/gtk+/modules/printbackends/cups/gtkprintbackendcups.c:3099
#9 0x00007fff80a67c90 in cups_dispatch_watch_dispatch (source=0x14846d0, callback=0x7fff80a6aded <cups_request_printer_list_cb>, user_data=
0x1483e40) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/gtk+/modules/printbackends/cups/gtkprintbackendcups.c:1361
#10 0x00007ffff2645ad4 in g_main_dispatch (context=0x6459d0) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3054
#11 0x00007ffff264682b in g_main_context_dispatch (context=0x6459d0) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3630
#12 0x00007ffff2646a1d in g_main_context_iterate (context=0x6459d0, block=1, dispatch=1, self=0x697470)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3701
#13 0x00007ffff2646e46 in g_main_loop_run (loop=0x6ea830) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3895
#14 0x00007ffff5bd89e4 in WebKit::WebProcessMainGtk (argc=2, argv=0x7fffffffbc98)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/WebProcess/gtk/WebProcessMainGtk.cpp:83
#15 0x00007ffff1624a55 in __libc_start_main (main=0x4008d0 <main(int, char**)>, argc=2, ubp_av=0x7fffffffbc98, init=<optimized out>,
fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffbc88) at libc-start.c:260
#16 0x0000000000400901 in _start ()
The free of the webkit print operation before the enumerate handler trigger:
#0 WebKit::WebPrintOperationGtkUnix::~WebPrintOperationGtkUnix (this=0x7f1ac34ef0b0, __in_chrg=<optimized out>)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/WebProcess/WebPage/gtk/WebPrintOperationGtk.cpp:51
#1 0x00007f1b5668c586 in deref (this=<optimized out>)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WTF/wtf/RefCounted.h:202
#2 derefIfNotNull<WebKit::WebPrintOperationGtk> (ptr=<optimized out>)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WTF/wtf/PassRefPtr.h:53
#3 operator= (optr=0x0, this=0x7f1b3eed5d18) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WTF/wtf/RefPtr.h:126
#4 WebKit::WebPage::endPrinting (this=0x7f1b3eed5800)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/WebProcess/WebPage/WebPage.cpp:3274
#5 0x00007f1b566b1fa2 in callMemberFunction<WebKit::WebPage, void (WebKit::WebPage::*)()> (function=<optimized out>, object=0x7f1b3eed5800)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/HandleMessage.h:15
#6 handleMessage<Messages::WebPage::EndPrinting, WebKit::WebPage, void (WebKit::WebPage::*)()> (decoder=..., function=<optimized out>, object=
0x7f1b3eed5800) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/HandleMessage.h:334
#7 WebKit::WebPage::didReceiveWebPageMessage (this=0x7f1b3eed5800, decoder=...) at DerivedSources/WebKit2/WebPageMessageReceiver.cpp:563
#8 0x00007f1b565050fb in CoreIPC::MessageReceiverMap::dispatchMessage (this=0x1ed9e08, connection=0x7f1b3eeb7d80, decoder=...)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/MessageReceiverMap.cpp:86
#9 0x00007f1b56696f56 in WebKit::WebProcess::didReceiveMessage (this=0x1ed9db0, connection=0x7f1b3eeb7d80, decoder=...)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/WebProcess/WebProcess.cpp:597
#10 0x00007f1b564ffbc0 in CoreIPC::Connection::dispatchMessage (this=0x7f1b3eeb7d80, incomingMessage=...)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/Connection.cpp:780
#11 0x00007f1b565014d6 in CoreIPC::Connection::SyncMessageState::dispatchMessages (this=0x7f1b3eeabdd0, allowedConnection=0x7f1b3eeb7d80)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/Connection.cpp:187
#12 0x00007f1b573ec5fc in operator() (this=<synthetic pointer>)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WTF/wtf/Functional.h:704
#13 WebCore::RunLoop::performWork (this=0x7f1b3eeafc98)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebCore/platform/RunLoop.cpp:106
#14 0x00007f1b57853fe9 in WebCore::RunLoop::queueWork (runLoop=<optimized out>)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebCore/platform/gtk/RunLoopGtk.cpp:104
#15 0x00007f1b5309722f in g_idle_dispatch (source=0x7f1af4001c50, callback=0x7f1b57853fe0 <WebCore::RunLoop::queueWork(WebCore::RunLoop*)>,
user_data=0x7f1b3eeafc98) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:5205
#16 0x00007f1b53094ad4 in g_main_dispatch (context=0x1e569d0) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3054
#17 0x00007f1b5309582b in g_main_context_dispatch (context=0x1e569d0) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3630
#18 0x00007f1b53095a1d in g_main_context_iterate (context=0x1e569d0, block=1, dispatch=1, self=0x1ea8270)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3701
---Type <return> to continue, or q <return> to quit---
#19 0x00007f1b53095e46 in g_main_loop_run (loop=0x1e85400) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3895
#20 0x00007f1b566279e4 in WebKit::WebProcessMainGtk (argc=2, argv=0x7fff289a72f8)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/WebProcess/gtk/WebProcessMainGtk.cpp:83
#21 0x00007f1b52073a55 in __libc_start_main (main=0x4008d0 <main(int, char**)>, argc=2, ubp_av=0x7fff289a72f8, init=<optimized out>,
fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff289a72e8) at libc-start.c:260
#22 0x0000000000400901 in _start ()
=> happens before the enumeration complete
=> printer_list->daata == this is destroyed before use
p *this
$11 = {<WebKit::WebPrintOperationGtk> = {<WTF::RefCounted<WebKit::WebPrintOperationGtk>> = {<WTF::RefCountedBase> = {m_refCount =
1}, <No data fields>}, _vptr.WebPrintOperationGtk = 0x7f1b57f5a650 <vtable for WebKit::WebPrintOperationGtkUnix+16>, m_webPage = 0x7f1b3eed5800,
m_printSettings = {m_ptr = 0x7f1acc015540 [GtkPrintSettings]}, m_pageSetup = {m_ptr = 0x2b9da30 [GtkPageSetup]}, m_printContext = 0x2a7ac60,
m_callbackID = 11, m_cairoContext = {m_ptr = 0x0}, m_xDPI = 1, m_yDPI = 1, m_printPagesIdleId = 0, m_numberOfPagesToPrint = 0, m_pagesToPrint =
0, m_pagePosition = 0, m_pageRanges = 0x0, m_pageRangesCount = 0, m_needsRotation = false, m_numberUp = 1, m_numberUpLayout = 0, m_pageSet = 0,
m_reverse = false, m_copies = 1, m_collateCopies = false, m_scale = 1}, m_printJob =
/home/prahal/Projects/Devel/Gnome/jhbuild/gdb/debian/gdb/gdb/findvar.c:176: internal-error: extract_typed_address: type is not a pointer or reference
A problem internal to GDB has been detected,
epiphany UIProcess calling endPrint on the WebProcess
(gdb) b WebKit::WebPageProxy::printFrame
Breakpoint 1 at 0x7f0c55125f94: file /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebPageProxy.cpp, line 2709.
(gdb) b WebKit::WebPageProxy::endPrinting
Breakpoint 2 at 0x7f0c5512a37a: file /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebPageProxy.cpp, line 3999.
(gdb) c
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x00007f0c502281ad in poll () at ../sysdeps/unix/syscall-template.S:81
81 in ../sysdeps/unix/syscall-template.S
(gdb) info b
Num Type Disp Enb Address What
1 breakpoint keep y 0x00007f0c55125f94 in WebKit::WebPageProxy::printFrame(unsigned long)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebPageProxy.cpp:2709
2 breakpoint keep y 0x00007f0c5512a37a in WebKit::WebPageProxy::endPrinting()
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebPageProxy.cpp:3999
Breakpoint 1, WebKit::WebPageProxy::printFrame (this=0x7f0c40715800, frameID=8)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebPageProxy.cpp:2709
2709 m_isPerformingDOMPrintOperation = true;
(gdb) l
2704 }
2705
2706 void WebPageProxy::printFrame(uint64_t frameID)
2707 {
2708 ASSERT(!m_isPerformingDOMPrintOperation);
2709 m_isPerformingDOMPrintOperation = true;
2710
2711 WebFrameProxy* frame = m_process->webFrame(frameID);
2712 MESSAGE_CHECK(frame);
2713
(gdb) n
2711 WebFrameProxy* frame = m_process->webFrame(frameID);
(gdb)
2712 MESSAGE_CHECK(frame);
(gdb)
2714 m_uiClient.printFrame(this, frame);
(gdb) s
WebKit::WebUIClient::printFrame (this=0x7f0c40715988, page=0x7f0c40715800, frame=0x7f0c406b8a80)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebUIClient.cpp:386
386 if (!m_client.printFrame)
(gdb) n
385 {
(gdb)
386 if (!m_client.printFrame)
(gdb)
389 m_client.printFrame(toAPI(page), toAPI(frame), m_client.clientInfo);
(gdb) l
384 void WebUIClient::printFrame(WebPageProxy* page, WebFrameProxy* frame)
385 {
386 if (!m_client.printFrame)
387 return;
388
389 m_client.printFrame(toAPI(page), toAPI(frame), m_client.clientInfo);
390 }
391
392 bool WebUIClient::canRunModal() const
393 {
(gdb) s
printFrame (page=0x7f0c40715800, frame=0x7f0c406b8a80)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/API/gtk/WebKitUIClient.cpp:140
140 {
(gdb) bt
#0 printFrame (page=0x7f0c40715800, frame=0x7f0c406b8a80)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/API/gtk/WebKitUIClient.cpp:140
#1 0x00007f0c55126013 in WebKit::WebPageProxy::printFrame (this=0x7f0c40715800, frameID=8)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebPageProxy.cpp:2714
#2 0x00007f0c551f61b0 in callMemberFunction<WebKit::WebPageProxy, void (WebKit::WebPageProxy::*)(unsigned long), unsigned long> (
function=<optimized out>, object=0x7f0c40715800, args=...)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/HandleMessage.h:95
#3 handleMessage<Messages::WebPageProxy::PrintFrame, WebKit::WebPageProxy, void (WebKit::WebPageProxy::*)(unsigned long)> (replyEncoder=...,
function=<optimized out>, object=0x7f0c40715800, decoder=...)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/HandleMessage.h:345
#4 WebKit::WebPageProxy::didReceiveSyncMessage (this=0x7f0c40715800, connection=<optimized out>, decoder=..., replyEncoder=...)
at DerivedSources/WebKit2/WebPageProxyMessageReceiver.cpp:737
#5 0x00007f0c550533b7 in CoreIPC::MessageReceiverMap::dispatchSyncMessage (this=0x7f0c4070db80, connection=0x7f0c40710d80, decoder=...,
replyEncoder=...) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/MessageReceiverMap.cpp:103
#6 0x00007f0c55163efb in WebKit::WebProcessProxy::didReceiveSyncMessage (this=0x7f0c4070db40, connection=0x7f0c40710d80, decoder=..., replyEncoder=
...) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebProcessProxy.cpp:372
#7 0x00007f0c5504db0c in CoreIPC::Connection::dispatchSyncMessage (this=0x7f0c40710d80, decoder=...)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/Connection.cpp:728
#8 0x00007f0c5504dc25 in CoreIPC::Connection::dispatchMessage (this=0x7f0c40710d80, incomingMessage=...)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/Connection.cpp:778
#9 0x00007f0c5504f4d6 in CoreIPC::Connection::SyncMessageState::dispatchMessages (this=0x7f0c406bddd0, allowedConnection=0x7f0c40710d80)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/Platform/CoreIPC/Connection.cpp:187
#10 0x00007f0c55f3a4c3 in operator() (this=<synthetic pointer>)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WTF/wtf/Functional.h:704
#11 WebCore::RunLoop::performWork (this=0x7f0c406b7c30)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebCore/platform/RunLoop.cpp:91
#12 0x00007f0c563a1fe9 in WebCore::RunLoop::queueWork (runLoop=<optimized out>)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebCore/platform/gtk/RunLoopGtk.cpp:104
#13 0x00007f0c50d9922f in g_idle_dispatch (source=0x7f0bdc007260, callback=0x7f0c563a1fe0 <WebCore::RunLoop::queueWork(WebCore::RunLoop*)>,
user_data=0x7f0c406b7c30) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:5205
#14 0x00007f0c50d96ad4 in g_main_dispatch (context=0x1930490) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3054
#15 0x00007f0c50d9782b in g_main_context_dispatch (context=0x1930490) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3630
#16 0x00007f0c50d97a1d in g_main_context_iterate (context=0x1930490, block=1, dispatch=1, self=0x19812d0)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3701
---Type <return> to continue, or q <return> to quit---
#17 0x00007f0c50d97ae1 in g_main_context_iteration (context=0x1930490, may_block=1)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/glib/gmain.c:3762
#18 0x00007f0c515cc052 in g_application_run (application=0x1aed050 [EphyShell], argc=1, argv=0x7fffd2077dc8)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/glib/gio/gapplication.c:1623
#19 0x00000000004339a6 in main (argc=1, argv=0x7fffd2077dc8) at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/epiphany/src/ephy-main.c:472
(gdb) l
135 {
136 webkitWebViewMouseTargetChanged(WEBKIT_WEB_VIEW(clientInfo), toImpl(hitTestResult), wkEventModifiersToGdkModifiers(modifiers));
137 }
138
139 static void printFrame(WKPageRef page, WKFrameRef frame, const void*)
140 {
141 webkitWebViewPrintFrame(WEBKIT_WEB_VIEW(toImpl(page)->viewWidget()), toImpl(frame));
142 }
143
144 static void runOpenPanel(WKPageRef page, WKFrameRef frame, WKOpenPanelParametersRef parameters, WKOpenPanelResultListenerRef listener, const void *clientInfo)
(gdb) s
141 webkitWebViewPrintFrame(WEBKIT_WEB_VIEW(toImpl(page)->viewWidget()), toImpl(frame));
(gdb)
webkit_web_view_get_type ()
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/API/gtk/WebKitWebView.cpp:194
194 WEBKIT_DEFINE_TYPE(WebKitWebView, webkit_web_view, WEBKIT_TYPE_WEB_VIEW_BASE)
(gdb) n
printFrame (page=0x7f0c40715800, frame=0x7f0c406b8a80)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/API/gtk/WebKitUIClient.cpp:142
142 }
(gdb) s
141 webkitWebViewPrintFrame(WEBKIT_WEB_VIEW(toImpl(page)->viewWidget()), toImpl(frame));
(gdb) s
webkitWebViewPrintFrame (webView=0x292a640 [EphyWebView], frame=0x7f0c406b8a80)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/API/gtk/WebKitWebView.cpp:1579
1579 {
(gdb) l
1574 priv->mouseTargetHitTestResult = adoptGRef(webkitHitTestResultCreate(hitTestResult));
1575 g_signal_emit(webView, signals[MOUSE_TARGET_CHANGED], 0, priv->mouseTargetHitTestResult.get(), modifiers);
1576 }
1577
1578 void webkitWebViewPrintFrame(WebKitWebView* webView, WebFrameProxy* frame)
1579 {
1580 GRefPtr<WebKitPrintOperation> printOperation = adoptGRef(webkit_print_operation_new(webView));
1581 gboolean returnValue;
1582 g_signal_emit(webView, signals[PRINT], 0, printOperation.get(), &returnValue);
1583 if (returnValue)
(gdb) n
1580 GRefPtr<WebKitPrintOperation> printOperation = adoptGRef(webkit_print_operation_new(webView));
(gdb)
1582 g_signal_emit(webView, signals[PRINT], 0, printOperation.get(), &returnValue);
(gdb) l
1577
1578 void webkitWebViewPrintFrame(WebKitWebView* webView, WebFrameProxy* frame)
1579 {
1580 GRefPtr<WebKitPrintOperation> printOperation = adoptGRef(webkit_print_operation_new(webView));
1581 gboolean returnValue;
1582 g_signal_emit(webView, signals[PRINT], 0, printOperation.get(), &returnValue);
1583 if (returnValue)
1584 return;
1585
1586 WebKitPrintOperationResponse response = webkitPrintOperationRunDialogForFrame(printOperation.get(), 0, frame);
(gdb) l
1587 if (response == WEBKIT_PRINT_OPERATION_RESPONSE_CANCEL)
1588 return;
1589 g_signal_connect(printOperation.leakRef(), "finished", G_CALLBACK(g_object_unref), 0);
1590 }
1591
1592 static void mainResourceResponseChangedCallback(WebKitWebResource*, GParamSpec*, WebKitWebView* webView)
1593 {
1594 webkitWebViewDisconnectMainResourceResponseChangedSignalHandler(webView);
1595 webkitWebViewEmitDelayedLoadEvents(webView);
1596 }
(gdb) n
1580 GRefPtr<WebKitPrintOperation> printOperation = adoptGRef(webkit_print_operation_new(webView));
(gdb)
1582 g_signal_emit(webView, signals[PRINT], 0, printOperation.get(), &returnValue);
(gdb)
1583 if (returnValue)
(gdb)
1586 WebKitPrintOperationResponse response = webkitPrintOperationRunDialogForFrame(printOperation.get(), 0, frame);
(gdb)
[New Thread 0x7f0b98ff9700 (LWP 31868)]
1587 if (response == WEBKIT_PRINT_OPERATION_RESPONSE_CANCEL)
(gdb) n
1589 g_signal_connect(printOperation.leakRef(), "finished", G_CALLBACK(g_object_unref), 0);
(gdb)
1590 }
(gdb)
[Thread 0x7f0b98ff9700 (LWP 31868) exited]
WebKit::WebPageProxy::printFrame (this=0x7f0c40715800, frameID=8)
at /home/prahal/Projects/Devel/Gnome/jhbuild/gnome/webkitgtk-1.11.92/Source/WebKit2/UIProcess/WebPageProxy.cpp:2716
2716 endPrinting(); // Send a message synchronously while m_isPerformingDOMPrintOperation is still true.
(gdb) l
2711 WebFrameProxy* frame = m_process->webFrame(frameID);
2712 MESSAGE_CHECK(frame);
2713
2714 m_uiClient.printFrame(this, frame);
2715
2716 endPrinting(); // Send a message synchronously while m_isPerformingDOMPrintOperation is still true.
2717 m_isPerformingDOMPrintOperation = false;
2718 }
2719
2720 void WebPageProxy::printMainFrame()
(gdb) q
--
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
More information about the webkit-unassigned
mailing list