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A LaxarJS widget that helps developing LaxarJS applications

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LaxarJS/laxar-developer-tools-widget

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The laxar-developer-tools-widget allows to open a developer tools window that embeds the laxar-developer-tools-content application. This application displays application events, helps visualizing the structure of the current page, and allows to browse log messages of the running LaxarJS application.

Content

Appearance

The laxar-developer-tools-widget optionally displays a button to allow the user to open a new window with the laxar-developer-tools-content application.

Usage

Installation

For this version of the laxar-developer-tools-widget, make sure that your host application is using LaxarJS v2.0.0 or newer. For installation instruction take a look at the LaxarJS documentation.

Configuration example

{
   "widget": "laxar-developer-tools-widget"
}

Use this configuration on a page to have a button that will open the developer tools window. The window will also open when the global method window.laxarShowDeveloperTools() is called.

{
   "widget": "laxar-developer-tools-widget",
   "features": {
      "button": {
         "enabled": false
      },
      "open": {
         "onActions": [ "showDevTools" ],
         "onGlobalMethod": "goDevelop"
      }
   }
}

Use this configuration on a page to have a developer tools window without visual representation, that will open when the action showDevTools is requested. Alternatively, the window can be opened by calling the method window.goDevelop() (for example, from a bookmark). Note: To open the developer window in this fashion, it might be necessary to add an exception to the browser's popup blocker.

For full configuration options refer to the widget.json.

Development

To develop (and not just use) the laxar-developer-tools-widget itself, the content application must be prepared:

cd content
npm install

To have the debug-version run within the developer tools window so that you may quickly try out any changes, enable the develop feature:

{
   "widget": "laxar-developer-tools-widget",
   "features": {
      "develop": {
         "enabled": true
      }
   }
}

To build and release a new version, the release-version of the embedded application must be committed:

cd content
npm run dist
git add var
git commit ...

Features

1. Allow to Open a Developer Tools Window (open)

Because the developer tools should exist independently of the host application state and navigation, they are opened in a separate window.

R1.1 The widget MUST allow to configure an action for opening the developer tools window. Note: To open the developer window in this fashion, it might be necessary for the user to add an exception to the browser's popup blocker. Alternatively, a button (see below) may be used.

R1.2 The widget MUST allow to configure a global javascript method name that opens the window directly. Note: This method is intended to be invoked manually by developers, and not as an API.

2. Provide Access through a Graphical Button (button)

R2.1 The widget MUST allow to render a graphical button. This should be the default behavior.

R2.2 It must be possible to disable the button.

R2.3 It must be possible to configure a different label for the button.

3. No-Op Mode

The widget MUST support being disabled completely using an application-wide enabled-flag.

R3.1 The enabled-flag must be read from the LaxarJS configuration path widgets.laxar-developer-tools-widget.enabled. The default value for the enabled-flag is true. If the enabled-flag value is false, the widget MUST NOT subscribe to takeActionRequest events, even if configured for the open feature.

R3.2 If the enabled-flag value is false, a global method MUST NOT be added, even if configured for the open feature.

R3.3 If the enabled-flag value is false, a button MUST NOT be rendered, even if the button feature has been enabled (see above).

4. Embed the laxar-developer-tools-content Application

R4.1 The widget MUST embed the laxar-developer-tools-content application to provide the developer tools for all browser. Refer to the laxar-developer-tools-content project for details.

Integration

Patterns

The widget supports the following event patterns as specified by the LaxarJS Patterns documentation.

Actions

  • Action: open.onActions
  • Role: Receiver
  • Description: Opens the developer tools window

References

The following resources are useful or necessary for the understanding of this document. The links refer to the latest version of the documentation.

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A LaxarJS widget that helps developing LaxarJS applications

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