During the previous week, I was working on the task: "enhancing the usability of the designer", by which implementing a client side database to carry out the "designer" funcationalities.
After analyzing all available client side data store mechanisms, I decided to go ahead with Indexed database, as it's much faster than WebSQL and It is the recommended data storage mechanism by W3C.
According to the new work-flow, the "Designer" tab will be always shown. Earlier it was shown only if the "table_coords" and "pdf_pages" tables are available.
Now the system works as follows:
First it checks whether the relevant tables exist in the database.
If not, It will create client side data store and start working with that.
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