Get last active element..

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  • rytmeboksen@gmail.com
    #1

    Get last active element..

    Hi,

    I have three textareas and four buttons within a form. The buttons has
    often used text as value. When I press a button I whant the assigned
    text to be added in whatever textareas im currently in (the one with
    cursor blinking). Is this possible with Javascript?

    --
    Tommy Myrvoll

    Tags: None
    • Ivo
      #2
      Re: Get last active element..

      <rytmeboksen@gm ail.com> wrote[color=blue]
      >
      > I have three textareas and four buttons within a form. The buttons has
      > often used text as value. When I press a button I whant the assigned
      > text to be added in whatever textareas im currently in (the one with
      > cursor blinking). Is this possible with Javascript?[/color]

      var lastarea, // global variable to remember current element
      a = document.getEle mentsByTagName( 'textarea' ), i = a.length;
      while( i-- ) {
      a[i].onfocus = setlast; // initialize
      }

      function setlast( e ) {
      e = e || window.event || {};
      var o = e.srcElement || e.target;
      lastarea = o;
      }

      Now when the button is pressed, you simply update "lastarea.value " with
      whatever the button is supposed to add.
      hth
      ivo
      http://4umi.com/web/javascript/



        Comment

        • McKirahan
          #3
          Re: Get last active element..

          <rytmeboksen@gm ail.com> wrote in message
          news:1130941314 .028571.22310@g 44g2000cwa.goog legroups.com...[color=blue]
          > Hi,
          >
          > I have three textareas and four buttons within a form. The buttons has
          > often used text as value. When I press a button I whant the assigned
          > text to be added in whatever textareas im currently in (the one with
          > cursor blinking). Is this possible with Javascript?
          >
          > --
          > Tommy Myrvoll
          >[/color]

          Will this help?

          <html>
          <head>
          <title>often.ht m</title>
          <script type="text/javascript">
          var what;
          function fokus(that) {
          what = that;
          }
          function often(that) {
          if (what == null) return;
          what.value = that.value;
          }
          </script>
          </head>
          <body>
          <form>
          <input type="reset" value="Reset">
          <br><textarea name="a1" id="a1" cols="40" rows="3"
          onfocus="fokus( this)"></textarea>
          <br><textarea name="a2" id="a2" cols="40" rows="3"
          onfocus="fokus( this)"></textarea>
          <br><textarea name="a3" id="a3" cols="40" rows="3"
          onfocus="fokus( this)"></textarea>
          <br><input type="button" value="often used text 1"
          onclick="often( this)">
          <br><input type="button" value="often used text 2"
          onclick="often( this)">
          <br><input type="button" value="often used text 3"
          onclick="often( this)">
          <br><input type="button" value="often used text 4"
          onclick="often( this)">
          </form>
          </body>
          </html>


            Comment

            • McKirahan
              #4
              Re: Get last active element..


              "McKirahan" <News@McKirahan .com> wrote in message
              news:ZKOdnRHrIe _UTfXeRVn-tA@comcast.com. ..[color=blue]
              > <rytmeboksen@gm ail.com> wrote in message
              > news:1130941314 .028571.22310@g 44g2000cwa.goog legroups.com...[color=green]
              > > Hi,
              > >
              > > I have three textareas and four buttons within a form. The buttons has
              > > often used text as value. When I press a button I whant the assigned
              > > text to be added in whatever textareas im currently in (the one with
              > > cursor blinking). Is this possible with Javascript?
              > >
              > > --
              > > Tommy Myrvoll
              > >[/color]
              >
              > Will this help?
              >
              > <html>
              > <head>
              > <title>often.ht m</title>
              > <script type="text/javascript">
              > var what;
              > function fokus(that) {
              > what = that;
              > }
              > function often(that) {
              > if (what == null) return;
              > what.value = that.value;
              > }
              > </script>
              > </head>
              > <body>
              > <form>
              > <input type="reset" value="Reset">
              > <br><textarea name="a1" id="a1" cols="40" rows="3"
              > onfocus="fokus( this)"></textarea>
              > <br><textarea name="a2" id="a2" cols="40" rows="3"
              > onfocus="fokus( this)"></textarea>
              > <br><textarea name="a3" id="a3" cols="40" rows="3"
              > onfocus="fokus( this)"></textarea>
              > <br><input type="button" value="often used text 1"
              > onclick="often( this)">
              > <br><input type="button" value="often used text 2"
              > onclick="often( this)">
              > <br><input type="button" value="often used text 3"
              > onclick="often( this)">
              > <br><input type="button" value="often used text 4"
              > onclick="often( this)">
              > </form>
              > </body>
              > </html>[/color]

              Change

              what.value = that.value;

              to

              what.value += that.value;

              to append the value to the textareas.

              Note the value is appended with adding a space
              or a line feed. Do you need either?


                Comment

                • Richard Cornford
                  #5
                  Re: Get last active element..

                  Ivo wrote:
                  <snip>[color=blue]
                  > var lastarea, // global variable to remember current element
                  > a = document.getEle mentsByTagName( 'textarea' ), i = a.length;
                  > while( i-- ) {
                  > a[i].onfocus = setlast; // initialize
                  > }
                  >
                  > function setlast( e ) {
                  > e = e || window.event || {};
                  > var o = e.srcElement || e.target;
                  > lastarea = o;
                  > }[/color]
                  <snip>

                  Given that you are assigning - setlast - to the - onfocus - property of
                  the textarea, so it will be called as a method of the textarea element:-

                  function setlast(){
                  lastarea = this;
                  }

                  - should be sufficient.

                  Richard.


                    Comment

                    • rytmeboksen@gmail.com
                      #6
                      Re: Get last active element..


                      McKirahan wrote:
                      ....[color=blue][color=green]
                      > > <script type="text/javascript">
                      > > var what;
                      > > function fokus(that) {
                      > > what = that;
                      > > }
                      > > function often(that) {
                      > > if (what == null) return;
                      > > what.value = that.value;
                      > > }
                      > > </script>[/color][/color]
                      ....

                      Just what I needed. Thanks a lot

                      --
                      Tommy

                        Comment

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