[daisy] [JIRA] Created: (DSY-560) Introduce an easy way to enable/disable dojo debug.

[Bruno Dumon (JIRA)]

Introduce an easy way to enable/disable dojo debug.
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         Key: DSY-560
         URL: http://issues.cocoondev.org//browse/DSY-560
     Project: Daisy
        Type: New Feature
 Reporter: Bruno Dumon
    Priority: Minor
     Fix For: 2.2


To enable dojo debug mode, one needs to execute this before dojo is loaded:

var djConfig = {};
djConfig.isDebug = true;

Daisy's layout.xsl can insert this code, based on the value of the dojo-debug XSLT parameter (defined from the sitemap.xmap).

This is rather clumsy to work with, since:
 - it requires modifying the sitemap, and not forgetting to change it back afterwards
 - layout.xsl is used in multiple pipelines, hence needs this modification in multiple places
 - this enables dojo debug mode for all users, which is not good if it is not a local Daisy install.

As a solution, we could have the dojo-debug preference stored in the session, and have some URL to enable/disable the debugging. This allows to easily enable/disable dojo debug on any Daisy installation. A disadvantage is that the setting is lost once the session is lost. Another possibility would be to store this preference in a cookie (could be done without any server-side support, I think).

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