Gecko DOM window onclose event ?

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  • Luke Matuszewski
    #1

    Gecko DOM window onclose event ?

    As in topic... has anyone used it ?

    I tried to use it but i guess i failed... here is a code:

    <html>
    <head>
    <title></title>
    <script type="text/javascript">
    function closedWin() {
    confirm("close ?");
    return false; /* which will not allow to close the window */
    }
    if(window.addEv entListener) {
    window.addEvent Listener("close ", closedWin, false);
    }

    window.onclose = closedWin;
    </script>
    </head>
    <body>

    </body>
    </html>

    Please try and lighten me :-)...

    Tags: javascript onclose, window.onclose
    • Danny
      #2
      Re: Gecko DOM window onclose event ?




      is not .onclose, is .onunload :).

      Danny

        Comment

        • Thomas 'PointedEars' Lahn
          #3
          Re: Gecko DOM window onclose event ?

          Danny wrote:
          [color=blue]
          > is not .onclose, is .onunload :).[/color]

          It is well known that the `unload' event also fires when the document is
          unloaded, i.e. when the location changes. Please get informed before you
          try to help here.


          PointedEars

            Comment

            • Luke Matuszewski
              #4
              Re: Gecko DOM window onclose event ?


              Thomas 'PointedEars' Lahn napisal(a):[color=blue]
              > Danny wrote:
              >[color=green]
              > > is not .onclose, is .onunload :).[/color]
              >
              > It is well known that the `unload' event also fires when the document is
              > unloaded, i.e. when the location changes. Please get informed before you
              > try to help here.
              >[/color]

              Yes.
              Question in topic refers to my older post on How to detect that a user
              closes a user agent window - where i suggested the spying popup which
              examines window.opener (window.opener. closed) properties.
              I ask about onclose, because i wanted to attach that event on Gecko
              browsers - and further if such attach will work i could disable spying
              popup - all necessery logout via img.src will be done in onclose event
              and not in spying popup (so questions from users of Gecko browsers in
              style: "Why this popup shows and quickly closes when i click/write/go
              to another ulr ?" will probably never rise... only from IE users).

              Still waitin for answer on topic question...

              PS i tried to open window in JS (popup via window.open) and added to
              returned reference the event onclose... closed the opened window but
              onclose was not fired :(
              [code]
              <html>
              <head>
              <title></title>
              <script type="text/javascript">
              function testingPopup(ev t) {
              spyWin = window.open('pa ge2.html','test ing',
              'width=100,heig ht=100,left=100 ,top=0,status=0 ');
              spyWin.addEvent Listener("close ", closedWin, false);
              spyWin.onclose = closedWin;
              }
              function closedWin() {
              confirm("close ?");
              return false;
              }
              if(window.attac hEvent) {
              window.attachEv ent("onunload", testingPopup);
              } else {
              if(window.addEv entListener) {
              window.addEvent Listener("unloa d", testingPopup, false);
              } else {
              window.onunload = testingPopup;
              }
              }

              </script>
              </head>
              <body>

              </body>
              </html>




              [color=blue]
              >
              > PointedEars[/color]

                Comment

                • Thomas 'PointedEars' Lahn
                  #5
                  Re: Gecko DOM window onclose event ?

                  Luke Matuszewski wrote:
                  [color=blue]
                  > Thomas 'PointedEars' Lahn napisal(a):[color=green]
                  >> Danny wrote:[color=darkred]
                  >> > is not .onclose, is .onunload :).[/color]
                  >>
                  >> It is well known that the `unload' event also fires when the document is
                  >> unloaded, i.e. when the location changes. Please get informed before you
                  >> try to help here.[/color]
                  >
                  > Yes.
                  > Question in topic refers to my older post[/color]

                  Threads should be continued if the subject virtually is the same.
                  [color=blue]
                  > on How to detect that a user closes a user agent window - where i
                  > suggested the spying popup which examines window.opener
                  > (window.opener. closed) properties. I ask about onclose, because i
                  > wanted to attach that event on Gecko browsers[/color]

                  1. `onclose' is not an event, it is an event handler. The respective event
                  would be named `close'. However, there is of course no such event in
                  W3C DOM Level 2 Events (or the Working Group Note on DOM Level 3 Events),
                  so using addEventListene r() is not very likely to work in the first
                  place.

                  2. You cannot add previously unsupported event handlers to the implemented
                  DOM.

                  3. The Gecko DOM appears to support such an event handler:

                  <URL:http://developer.mozil la.org/en/docs/DOM:window#Even t_Handlers>

                  Historically, event handlers can be assigned event listeners with
                  assignment of a Function object reference to the respective property
                  of the target object. However, it is not described that returning a
                  false-value will cancel the respective event.
                  [color=blue]
                  > PS i tried to open window in JS (popup via window.open) and added to
                  > returned reference the event onclose... closed the opened window but
                  > onclose was not fired :([/color]

                  So, ignoring that your examples were not Valid HTML, the event handler
                  appears not to be supported yet or not longer to be supported in the
                  Gecko DOM.

                  Would you please learn to quote?


                  PointedEars

                    Comment

                    • Luke Matuszewski
                      #6
                      Re: Gecko DOM window onclose event ?


                      Thomas 'PointedEars' Lahn napisal(a):[color=blue]
                      > So, ignoring that your examples were not Valid HTML, the event handler
                      > appears not to be supported yet or not longer to be supported in the
                      > Gecko DOM.
                      >[/color]

                      Probably thats why it is colored red on
                      Window - Web APIs | MDN
                      http://developer.mozilla.org/en/docs/DOM:window#Event_Handlers
                      The Window interface represents a window containing a DOM document; the document property points to the DOM document loaded in that window.

                      , but it makes no excuse for them to inform developer that 'red' events
                      are not supported. This is my assumption, but maybe someone more
                      knowing will lighten the 'red' events.
                      [color=blue]
                      > Would you please learn to quote?[/color]

                      Looks good here ?
                      [color=blue]
                      > PointedEars[/color]

                      Luke

                        Comment

                        • Thomas 'PointedEars' Lahn
                          #7
                          Re: Gecko DOM window onclose event ?

                          Luke Matuszewski wrote:
                          [color=blue]
                          > Thomas 'PointedEars' Lahn napisal(a):[color=green]
                          >> So, ignoring that your examples were not Valid HTML, the event handler
                          >> appears not to be supported yet or not longer to be supported in the
                          >> Gecko DOM.[/color]
                          >
                          > Probably thats why it is colored red on
                          > http://developer.mozilla.org/en/docs...Event_Handlers[/color]

                          It is possible, but not very likely. That is a Wiki and links colored
                          different there indicate links to documents that have not been written yet.
                          [color=blue]
                          > , but it makes no excuse for them to inform developer that 'red'
                          > events are not supported. This is my assumption, but maybe someone
                          > more knowing will lighten the 'red' events.[/color]

                          You have yet to understand what a Wiki is. Click the link.
                          [color=blue][color=green]
                          >> Would you please learn to quote?[/color]
                          >
                          > Looks good here ?[/color]

                          No. Signatures (literal and technical meaning) are not to be quoted unless
                          one referrs to them directly. And _all_ quoted material that has no direct
                          reference should be removed from the followup before it is posted.


                          PointedEars

                            Comment

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