conTEXT script

Sun Aug 20 20:55:39 UTC 2006

wouldn't it be easier if we provided a nice way of injecting some html into 
context browser pages?

On Sun August 20 2006 20:41, michael cohrs wrote:
> hi there,
>
> seb wrote:
> > this is a very interesting script. could you please write a little on
> > how it works to update the context browser, because afaik we don't
> > provide a way to modify the contextbrowser!
> > Can you also email this to amarok at kde.org ?
>
> Sure, well, the only way (I know of) to modify the context browser is
> calling "dcop amarok html-widget1 evalJS". And the rest is pure Javsacript
> DOM tree manipulation pain (or call it fun :). Just clone one of the boxes
> (tables) and insert it.
> The idea is originally taken from the Smart DJ script. I extended it a
> little (well it has grown to more than 600 lines of JS code) with some
> DHTML control features and by embedding an iframe and thus allowing to
> display external html fairly easily.
>
> While we're at it, I think I need some help:
> The script is causing an Amarok crash when Amarok is exiting (see the
> backtrace below), sometimes (more often since conTEXT version 2). I'm not
> currently using the latest Amarok svn version, but I'm afraid it should be
> easy to reproduce with any version. I don't know what exactly is causing
> it but it does NOT happen if:
> - I remove a periodical evalJS call that is needed to remember the changes
> the user made to the conTEXT box AND
> - I don't insert the iframe mentioned above (but still insert a table)
> Could somebody with a little more Amarok and C++ experience take a look at
> this? I would be really happy if this could be fixed. Thanks a lot.
>
> best regards
> camico
>
> --
>
>
> 1.4-SVN [NOTstripped][validity: 0.58][frames: 151][xine]
>
> Amarok has crashed! We are terribly sorry about this :(
>
> But, all is not lost! You could potentially help us fix the crash.
> Information describing the crash is below, so just click send, or if you
> have time, write a brief description of how the crash happened first.
>
> Many thanks.
>
>
> The information below is to help the developers identify the problem,
> please do not modify it.
>
>
>
> ======== DEBUG INFORMATION  =======
> Version:    1.4-SVN
> Engine:     xine-engine
> Build date: Jul 23 2006
> CC version: 4.0.3 20051201 (prerelease) (Debian 4.0.2-5)
> KDElibs:    3.5.3
> Qt:         3.3.6
> TagLib:     1.4.0
>
> ==== file `which amarokapp` =======
> /usr/bin/amarokapp: ELF 32-bit LSB executable, Intel 80386, version 1
> (SYSV), for GNU/Linux 2.4.1, dynamically linked (uses shared libs), not
> stripped
>
>
> ==== (gdb) bt =====================
> Using host libthread_db library "/lib/tls/libthread_db.so.1".
> `system-supplied DSO at 0xffffe000' has disappeared; keeping its symbols.
> [Thread debugging using libthread_db enabled]
> [New Thread -1246357280 (LWP 20430)]
> [New Thread -1259807824 (LWP 20965)]
> [New Thread -1305269328 (LWP 20503)]
> [New Thread -1296880720 (LWP 20502)]
> [New Thread -1286603856 (LWP 20501)]
> [New Thread -1277121616 (LWP 20500)]
> [New Thread -1251062864 (LWP 20484)]
> 0xb5fe1221 in __waitpid_nocancel () from /lib/tls/libpthread.so.0
> #0  0xb5fe1221 in __waitpid_nocancel () from /lib/tls/libpthread.so.0
> #1  0x0804d9bd in amaroK::Crash::crashHandler () at
> /home/mc/src/amarok/amarok-svn/amarok/src/amarokcore/crashhandler.cpp:223
> #2  <signal handler called>
> #3  0xb7c5525e in QObject::parent (this=0x0) at qobject.h:154
> #4  0xb7c55476 in QWidget::parentWidget (this=0x0, sameWindow=false) at
> qwidget.h:878
> #5  0xb66b163f in QWidget::topLevelWidget () from /usr/lib/libqt-mt.so.3
> #6  0xb75828b3 in KParts::StatusBarExtension::statusBar () from
> /usr/lib/libkparts.so.2
> #7  0xb7583e8f in KParts::StatusBarExtension::removeStatusBarItem () from
> /usr/lib/libkparts.so.2
> #8  0xb77eb537 in KHTMLPart::removeJSErrorExtension () from
> /usr/lib/libkhtml.so.4
> #9  0xb7822f0e in KHTMLPart::~KHTMLPart () from /usr/lib/libkhtml.so.4
> #10 0xb7d0ac7b in ~HTMLView (this=0x81e6148) at
> /home/mc/src/amarok/amarok-svn/amarok/src/htmlview.cpp:47
> #11 0xb75843df in KParts::Part::slotWidgetDestroyed () from
> /usr/lib/libkparts.so.2
> #12 0xb7584442 in KParts::Part::qt_invoke () from /usr/lib/libkparts.so.2
> #13 0xb758d2f4 in KParts::ReadOnlyPart::qt_invoke () from
> /usr/lib/libkparts.so.2
> #14 0xb7830d03 in KHTMLPart::qt_invoke () from /usr/lib/libkhtml.so.4
> #15 0xb7d0da4b in HTMLView::qt_invoke (this=0x81e6148, _id=2,
> _o=0xbff8c2fc) at htmlview.moc:77
> #16 0xb667e678 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
> #17 0xb667efdc in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
> #18 0xb6a0ecbc in QObject::destroyed () from /usr/lib/libqt-mt.so.3
> #19 0xb667d147 in QObject::~QObject () from /usr/lib/libqt-mt.so.3
> #20 0xb66b76df in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> #21 0xb7c6c0d7 in ~QFrame (this=0x8221368) at qframe.h:48
> #22 0xb67b7d66 in QScrollView::~QScrollView () from /usr/lib/libqt-mt.so.3
> #23 0xb77fc06b in KHTMLView::~KHTMLView () from /usr/lib/libkhtml.so.4
> #24 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> #25 0xb7c6c0d7 in ~QFrame (this=0x81e4058) at qframe.h:48
> #26 0xb7c6c135 in ~QHBox (this=0x81e4058) at qhbox.h:49
> #27 0xb6a36655 in QVBox::~QVBox () from /usr/lib/libqt-mt.so.3
> #28 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> #29 0xb7c6c0d7 in ~QFrame (this=0x81ffb30) at qframe.h:48
> #30 0xb67e77d4 in QWidgetStack::~QWidgetStack () from
> /usr/lib/libqt-mt.so.3
> #31 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> #32 0xb67cd9ec in QTabWidget::~QTabWidget () from /usr/lib/libqt-mt.so.3
> #33 0xb70d9b36 in KTabWidget::~KTabWidget () from /usr/lib/libkdeui.so.4
> #34 0xb7cc1da1 in ~ContextBrowser (this=0x81ff938) at
> /home/mc/src/amarok/amarok-svn/amarok/src/contextbrowser.cpp:323
> #35 0xb66b6ffd in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> #36 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> #37 0xb7c53eed in ~BrowserBar (this=0x8182898) at
> /home/mc/src/amarok/amarok-svn/amarok/src/browserbar.cpp:100
> #38 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> #39 0xb7ddff8f in ~PlaylistWindow (this=0x814b540) at
> /home/mc/src/amarok/amarok-svn/amarok/src/playlistwindow.cpp:218
> #40 0xb7c48646 in ~App (this=0xbff8c7ac) at
> /home/mc/src/amarok/amarok-svn/amarok/src/app.cpp:223
> #41 0x0804cc44 in main (argc=1, argv=0xbff8c914) at
> /home/mc/src/amarok/amarok-svn/amarok/src/main.cpp:107
> #0  0xb5fe1221 in __waitpid_nocancel () from /lib/tls/libpthread.so.0
> No symbol table info available.
> #1  0x0804d9bd in amaroK::Crash::crashHandler () at
> /home/mc/src/amarok/amarok-svn/amarok/src/amarokcore/crashhandler.cpp:223
> 	pid = 22064
> #2  <signal handler called>
> No symbol table info available.
> #3  0xb7c5525e in QObject::parent (this=0x0) at qobject.h:154
> No locals.
> #4  0xb7c55476 in QWidget::parentWidget (this=0x0, sameWindow=false) at
> qwidget.h:878
> No locals.
> #5  0xb66b163f in QWidget::topLevelWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #6  0xb75828b3 in KParts::StatusBarExtension::statusBar () from
> /usr/lib/libkparts.so.2
> No symbol table info available.
> #7  0xb7583e8f in KParts::StatusBarExtension::removeStatusBarItem () from
> /usr/lib/libkparts.so.2
> No symbol table info available.
> #8  0xb77eb537 in KHTMLPart::removeJSErrorExtension () from
> /usr/lib/libkhtml.so.4
> No symbol table info available.
> #9  0xb7822f0e in KHTMLPart::~KHTMLPart () from /usr/lib/libkhtml.so.4
> No symbol table info available.
> #10 0xb7d0ac7b in ~HTMLView (this=0x81e6148) at
> /home/mc/src/amarok/amarok-svn/amarok/src/htmlview.cpp:47
> No locals.
> #11 0xb75843df in KParts::Part::slotWidgetDestroyed () from
> /usr/lib/libkparts.so.2
> No symbol table info available.
> #12 0xb7584442 in KParts::Part::qt_invoke () from /usr/lib/libkparts.so.2
> No symbol table info available.
> #13 0xb758d2f4 in KParts::ReadOnlyPart::qt_invoke () from
> /usr/lib/libkparts.so.2
> No symbol table info available.
> #14 0xb7830d03 in KHTMLPart::qt_invoke () from /usr/lib/libkhtml.so.4
> No symbol table info available.
> #15 0xb7d0da4b in HTMLView::qt_invoke (this=0x81e6148, _id=2,
> _o=0xbff8c2fc) at htmlview.moc:77
> No locals.
> #16 0xb667e678 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #17 0xb667efdc in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #18 0xb6a0ecbc in QObject::destroyed () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #19 0xb667d147 in QObject::~QObject () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #20 0xb66b76df in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #21 0xb7c6c0d7 in ~QFrame (this=0x8221368) at qframe.h:48
> No locals.
> #22 0xb67b7d66 in QScrollView::~QScrollView () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #23 0xb77fc06b in KHTMLView::~KHTMLView () from /usr/lib/libkhtml.so.4
> No symbol table info available.
> #24 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #25 0xb7c6c0d7 in ~QFrame (this=0x81e4058) at qframe.h:48
> No locals.
> #26 0xb7c6c135 in ~QHBox (this=0x81e4058) at qhbox.h:49
> No locals.
> #27 0xb6a36655 in QVBox::~QVBox () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #28 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #29 0xb7c6c0d7 in ~QFrame (this=0x81ffb30) at qframe.h:48
> No locals.
> #30 0xb67e77d4 in QWidgetStack::~QWidgetStack () from
> /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #31 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #32 0xb67cd9ec in QTabWidget::~QTabWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #33 0xb70d9b36 in KTabWidget::~KTabWidget () from /usr/lib/libkdeui.so.4
> No symbol table info available.
> #34 0xb7cc1da1 in ~ContextBrowser (this=0x81ff938) at
> /home/mc/src/amarok/amarok-svn/amarok/src/contextbrowser.cpp:323
> No locals.
> #35 0xb66b6ffd in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #36 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #37 0xb7c53eed in ~BrowserBar (this=0x8182898) at
> /home/mc/src/amarok/amarok-svn/amarok/src/browserbar.cpp:100
> No locals.
> #38 0xb66b761d in QWidget::~QWidget () from /usr/lib/libqt-mt.so.3
> No symbol table info available.
> #39 0xb7ddff8f in ~PlaylistWindow (this=0x814b540) at
> /home/mc/src/amarok/amarok-svn/amarok/src/playlistwindow.cpp:218
> No locals.
> #40 0xb7c48646 in ~App (this=0xbff8c7ac) at
> /home/mc/src/amarok/amarok-svn/amarok/src/app.cpp:223
> 	uniquelyNamedStackAllocatedStandardBlock = {m_start = {tv_sec =
> 1156078019, tv_usec = 212508},
>    m_label = 0xb7f042d0 "virtual App::~App()"}
> 	engine = (EngineBase * const) 0x84c26e8
> #41 0x0804cc44 in main (argc=1, argv=0xbff8c914) at
> /home/mc/src/amarok/amarok-svn/amarok/src/main.cpp:107
> 	app = {<> = {<No data fields>}, <EngineObserver> = {_vptr.EngineObserver
> = 0xb7f53368, m_subject = 0x0}, static metaObj = 0x813e6b0,
>    static mainThreadId = 0, m_pGlobalAccel = 0x814c170, m_pPlayerWindow =
> 0x0, m_pPlaylistWindow = 0x814b540, m_pTray = 0x80eb0d8,
>    m_pDeviceManager = 0xb7f6c840}
> ==== (gdb) thread apply all bt ====
> Thread 7 (Thread -1251062864 (LWP 20484)):
> #0  0xb5fddde2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from
> /lib/tls/libpthread.so.0
> #1  0xb45fa6ff in xine_open () from /usr/lib/libxine.so.1
> Thread 6 (Thread -1277121616 (LWP 20500)):
> #0  0xb5c31819 in poll () from /lib/tls/libc.so.6
> #1  0xb40803ec in ?? () from
> /usr/lib/xine/plugins/1.1.1/xineplug_ao_out_alsa.so
> #2  0xb3e0a3b0 in ?? ()
> #3  0x00000001 in ?? ()
> #4  0x0000014d in ?? ()
> #5  0x00000000 in ?? ()
> #6  0x080e8e48 in ?? ()
> #7  0xb3e0a3b0 in ?? ()
> #8  0x00000000 in ?? ()
> #9  0x00000000 in ?? ()
> #10 0x00000011 in ?? ()
> #11 0x00000029 in ?? ()
> #12 0x00000000 in ?? ()
> #13 0x00000000 in ?? ()
> #14 0x00000000 in ?? ()
> #15 0x00000000 in ?? ()
> #16 0x00000000 in ?? ()
> #17 0x00000000 in ?? ()
> #18 0x00000000 in ?? ()
> #19 0x00000000 in ?? ()
> #20 0x00000000 in ?? ()
> #21 0x00000000 in ?? ()
> #22 0x00000000 in ?? ()
> #23 0x00000000 in ?? ()
> #24 0x00000000 in ?? ()
> #25 0x00000000 in ?? ()
> #26 0x00000000 in ?? ()
> #27 0x00000000 in ?? ()
> #28 0x00000000 in ?? ()
> #29 0x00000000 in ?? ()
> #30 0x00000000 in ?? ()
> #31 0x00000000 in ?? ()
> #32 0x00000000 in ?? ()
> #33 0x00000000 in ?? ()
> #34 0x00000000 in ?? ()
> #35 0x00000000 in ?? ()
> #36 0x00000000 in ?? ()
> #37 0x00000000 in ?? ()
> #38 0x00000000 in ?? ()
> #39 0x00000000 in ?? ()
> #40 0x00000000 in ?? ()
> #41 0x00000000 in ?? ()
> #42 0x00000000 in ?? ()
> #43 0x00000000 in ?? ()
> #44 0x00000000 in ?? ()
> #45 0x0000001a in ?? ()
> #46 0x0000001a in ?? ()
> #47 0x00000001 in ?? ()
> #48 0x00000001 in ?? ()
> #49 0xb5fe4ff4 in ?? () from /lib/tls/libpthread.so.0
> #50 0x00000000 in ?? ()
> #51 0x007d0f00 in ?? ()
> #52 0xb3e0a4c8 in ?? ()
> #53 0xb5fdbced in start_thread () from /lib/tls/libpthread.so.0
> #54 0xb3f099bc in ?? ()
> #55 0xb3f08120 in ?? ()
> #56 0xb3f08120 in ?? ()
> #57 0xb3f0a69c in ?? ()
> #58 0xb3f101d4 in ?? ()
> #59 0xb3f0c278 in ?? ()
> #60 0x00000016 in ?? ()
> #61 0x00000020 in ?? ()
> #62 0x00000001 in ?? ()
> #63 0x00000000 in ?? ()
> #64 0x00000000 in ?? ()
> #65 0xb44b5a50 in snd_mixer_free () from /usr/lib/libasound.so.2
> #0  0xb5fe1221 in __waitpid_nocancel () from /lib/tls/libpthread.so.0
>
>
> ==== kdBacktrace() ================
> [
> 0: /usr/lib/libkdecore.so.4(_Z11kdBacktracei+0x45) [0xb6d34525]
> 1: /usr/lib/libkdecore.so.4(_Z11kdBacktracev+0x2b) [0xb6d348ab]
> 2: amarokapp(_ZN6amaroK5Crash12crashHandlerEi+0xad2) [0x804d806]
> 3: [0xffffe420]
> 4: /usr/lib/libamarok.so.0(_ZNK7QWidget12parentWidgetEb+0x60) [0xb7c55476]
> 5: /usr/lib/libqt-mt.so.3(_ZNK7QWidget14topLevelWidgetEv+0x2b) [0xb66b163f]
> 6:
> /usr/lib/libkparts.so.2(_ZNK6KParts18StatusBarExtension9statusBarEv+0x43)
> [0xb75828b3]
> 7:
> /usr/lib/libkparts.so.2(_ZN6KParts18StatusBarExtension19removeStatusBarItem
>EP7QWidget+0x1f) [0xb7583e8f]
> 8: /usr/lib/libkhtml.so.4(_ZN9KHTMLPart22removeJSErrorExtensionEv+0x47)
> [0xb77eb537]
> 9: /usr/lib/libkhtml.so.4(_ZN9KHTMLPartD2Ev+0x2be) [0xb7822f0e]
> 10: /usr/lib/libamarok.so.0(_ZN8HTMLViewD0Ev+0x10b) [0xb7d0ac7b]
> 11: /usr/lib/libkparts.so.2(_ZN6KParts4Part19slotWidgetDestroyedEv+0x6f)
> [0xb75843df]
> 12: /usr/lib/libkparts.so.2(_ZN6KParts4Part9qt_invokeEiP8QUObject+0x32)
> [0xb7584442]
> 13:
> /usr/lib/libkparts.so.2(_ZN6KParts12ReadOnlyPart9qt_invokeEiP8QUObject+0x44
>) [0xb758d2f4]
> 14: /usr/lib/libkhtml.so.4(_ZN9KHTMLPart9qt_invokeEiP8QUObject+0x53)
> [0xb7830d03]
> 15: /usr/lib/libamarok.so.0(_ZN8HTMLView9qt_invokeEiP8QUObject+0x25)
> [0xb7d0da4b]
> 16:
> /usr/lib/libqt-mt.so.3(_ZN7QObject15activate_signalEP15QConnectionListP8QUO
>bject+0x25c) [0xb667e678]
> 17: /usr/lib/libqt-mt.so.3(_ZN7QObject15activate_signalEi+0x15e)
> [0xb667efdc]
> 18: /usr/lib/libqt-mt.so.3(_ZN7QObject9destroyedEv+0x2e) [0xb6a0ecbc]
> 19: /usr/lib/libqt-mt.so.3(_ZN7QObjectD2Ev+0x6b) [0xb667d147]
> 20: /usr/lib/libqt-mt.so.3(_ZN7QWidgetD2Ev+0x2f5) [0xb66b76df]
> 21: /usr/lib/libamarok.so.0(_ZN6QFrameD2Ev+0x3f) [0xb7c6c0d7]
> 22: /usr/lib/libqt-mt.so.3(_ZN11QScrollViewD2Ev+0x182) [0xb67b7d66]
> 23: /usr/lib/libkhtml.so.4(_ZN9KHTMLViewD0Ev+0x20b) [0xb77fc06b]
> 24: /usr/lib/libqt-mt.so.3(_ZN7QWidgetD2Ev+0x233) [0xb66b761d]
> 25: /usr/lib/libamarok.so.0(_ZN6QFrameD2Ev+0x3f) [0xb7c6c0d7]
> 26: /usr/lib/libamarok.so.0(_ZN5QHBoxD2Ev+0x3f) [0xb7c6c135]
> 27: /usr/lib/libqt-mt.so.3(_ZN5QVBoxD0Ev+0x3d) [0xb6a36655]
> 28: /usr/lib/libqt-mt.so.3(_ZN7QWidgetD2Ev+0x233) [0xb66b761d]
> 29: /usr/lib/libamarok.so.0(_ZN6QFrameD2Ev+0x3f) [0xb7c6c0d7]
> 30: /usr/lib/libqt-mt.so.3(_ZN12QWidgetStackD0Ev+0xa4) [0xb67e77d4]
> 31: /usr/lib/libqt-mt.so.3(_ZN7QWidgetD2Ev+0x233) [0xb66b761d]
> 32: /usr/lib/libqt-mt.so.3(_ZN10QTabWidgetD2Ev+0x62) [0xb67cd9ec]
> 33: /usr/lib/libkdeui.so.4(_ZN10KTabWidgetD2Ev+0x56) [0xb70d9b36]
> 34: /usr/lib/libamarok.so.0(_ZN14ContextBrowserD0Ev+0x1e5) [0xb7cc1da1]
> 35: /usr/lib/libqt-mt.so.3(_ZN7QWidgetD0Ev+0x233) [0xb66b6ffd]
> 36: /usr/lib/libqt-mt.so.3(_ZN7QWidgetD2Ev+0x233) [0xb66b761d]
> 37: /usr/lib/libamarok.so.0(_ZN10BrowserBarD0Ev+0x13b) [0xb7c53eed]
> 38: /usr/lib/libqt-mt.so.3(_ZN7QWidgetD2Ev+0x233) [0xb66b761d]
> 39: /usr/lib/libamarok.so.0(_ZN14PlaylistWindowD0Ev+0x145) [0xb7ddff8f]
> 40: /usr/lib/libamarok.so.0(_ZN3AppD1Ev+0x246) [0xb7c48646]
> 41: amarokapp [0x804cc44]
> 42: /lib/tls/libc.so.6(__libc_start_main+0xd0) [0xb5b7eeb0]
> 43: amarokapp [0x804c4f1]
> ]
>
>
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