Fix Mouse.isDown behavior for non-fullscreen components #498

erich-9 · Feb 6, 2016

The signal Mouse.isDown doesn't work as explained in the documentation:

True when any mouse button is down, and false otherwise.

For embedded components pressing or releasing a mouse button outside the component doesn't change the value of the signal Mouse.isDown, even if the mouse is moved back into the component afterwards.

Here is an example (save it as Main.elm and compile elm-make Main.elm --output=elm.js):

module Main (main) where

import Graphics.Element exposing (show)
import Mouse

main = Signal.map show Mouse.isDown

Now embed it in an HTML document:

<html>
  <head>
  <style>
    div.fbox { width: 50px; height: 50px; border: solid gray 2px }
  </style>
  </head>
  <body>
    <div id="x" class="fbox"></div>
    <script src="elm.js"></script>
    <script>
      var x = document.getElementById('x');
      Elm.embed(Elm.Main, x);
    </script>
  </body>
</html>

Mouse no longer lives in core. Not sure if it is still an issue in elm-lang/mouse.

evancz · May 11, 2016

Mouse no longer lives in core. Not sure if it is still an issue in elm-lang/mouse.

fix Mouse.isDown behavior for non-fullscreen components

602f6cc

evancz closed this May 11, 2016

elm/core

Fix Mouse.isDown behavior for non-fullscreen components #498

erich-9 commented Feb 6, 2016

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evancz commented May 11, 2016

evancz closed this May 11, 2016

elm/core

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Fix Mouse.isDown behavior for non-fullscreen components #498

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erich-9 commented Feb 6, 2016

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evancz May 11, 2016

evancz commented May 11, 2016

evancz closed this May 11, 2016