Commit 5c513623 authored by Committed by Jonah Brüchert
Use new ClientThread for XMPP-connection; Make offline usable
This rewrites the full back-end <-> front-end communication, moves the connection logic to the back-end and makes the XMPP client connection independant of the user interface (they will run parallel). However, the database still runs on the main, GUI thread, so this will still block GUI rendering (will be done in one of the next commits). Now, Kaidan is able to handle different DisconnectionReason, so it can distinguish if the authentication failed or there's just no connection to the server available. So this will finally make Kaidan offline useable! But it currently won't reconenct after losing the connection once. The bug that Kaidan always crashed, when logging in after logging out has also been fixed with this. The LogInPage was simplified: now, the button only shows "Connecting..." (when pressed) or "Connect". The trivial state of "retry" has been removed. `branding.h` was renamed to `Globals.h`. The new `Enums` namespace is used to register enums as a QMetaEnum, to make them printable and accessible in QML. The new `Q_ENUM_NS` macro is used for that. Coding style: I started to use doxygen-compatible inline documentation for the most functions, classes, enums and other elements. I don't want to really use doxygen (we're not a library), but it should definitely make it easier for new developers to understand the code. So from now on new code should be documented like this. Closes #107 - Make Kaidan offline usable.
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