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Bug: App crashes when poping up a menu #5513

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zaygraveyard opened this issue Nov 30, 2016 · 3 comments
Closed

Bug: App crashes when poping up a menu #5513

zaygraveyard opened this issue Nov 30, 2016 · 3 comments
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@ghostoy
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bug test-todo

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@zaygraveyard
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Using

  • nw v0.18.8 (sdk)
  • macOS 10.12.1 (16B2555)

How to reproduce

"crash.html"

<html>
  <head>
    <script type="text/javascript">require('./crash.js')</script>
  </head>
  <body>
  </body>
</html>

"crash.js"

var menu = new nw.Menu();
menu.append(new nw.MenuItem({
    label: 'Crash',
}));
menu.popup(0, 0);

Run an app having "main": "crash.html" in the "package.json"

What's expected

The app lunches without crashing and a menu is open in the top left corner of the window.
See the workaround below.

What actually happens

The app crashs.

Workaround

"nocrash.html"

<html>
  <head>
    <script type="text/javascript">
      global.newMenu = function() {
        return new nw.Menu();
      };
      require('./nocrash.js');
    </script>
  </head>
  <body>
  </body>
</html>

"nocrash.js"

var menu = global.newMenu();
menu.append(new nw.MenuItem({
    label: 'No Crash',
}));
menu.popup(0, 0);

Crash Dump

I will provide one if needed.
@ghostoy ghostoy added the bug label Dec 15, 2016
@ghostoy
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ghostoy commented Dec 15, 2016

The issue is caused by calling in background page. However background page does not have a web page. So you will see the menu popup in the bottom left of the screen. I will fix the crash, but it's not recommended to call it in background page.

ghostoy pushed a commit to ghostoy/nw.js that referenced this issue Dec 15, 2016
fix popup menu in background page crashes nw
fdc51c6 
fixed nwjs#5513
@ghostoy ghostoy mentioned this issue Dec 15, 2016
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@zaygraveyard
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@ghostoy Thank you
Is there somewhere I read more about background pages?

@ghostoy
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ghostoy commented Dec 16, 2016

The background page is a default HTML loaded on start. See Chrome App Background Pages.

And "In NW.js, Node.js modules can be loaded in the context running in background page, which is the default behavior." See Javascript Context in NW.js.

rogerwang pushed a commit that referenced this issue Dec 20, 2016
@rogerwang
fix popup menu in background page crashes nw
4c0610d 
fixed #5513
zaygraveyard added a commit to zaygraveyard/koala that referenced this issue Apr 23, 2017
@zaygraveyard
Add a workaround a bug in nwjs/nw.js#5513
6bd7e98
zaygraveyard added a commit to zaygraveyard/koala that referenced this issue Apr 23, 2017
@zaygraveyard
Merge branch 'chore/update-nw' into develop
10158e6 
* chore/update-nw:
  Add a workaround a bug in nwjs/nw.js#5513
  Update the URL to be relative.
  Replace `require(‘nw.gui’)` with the global `nw`.
  Remove setting the `localStorage` of the `global`. It’s set by default.
zaygraveyard added a commit to zaygraveyard/koala that referenced this issue Apr 25, 2017
@zaygraveyard
Merge branch 'develop'
45430bb 
* develop:
  Bump version to 2.1.0
  Update copyright year to 2017.
  Correct a contributor’s name.
  Update the compilers.
  Add a build system for making releases using gulp.
  Add a workaround a bug in nwjs/nw.js#5513
  Update the URL to be relative.
  Replace `require(‘nw.gui’)` with the global `nw`.
  Remove setting the `localStorage` of the `global`. It’s set by default.
  Improve the feature
  Use JSON files and update default JSON config files
  Support for AutoPrefix Config on CSS, LESS and Sass
  change the default value of maxBuffer oklai#162
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@ghostoy @zaygraveyard