GSoC/KDE Developments
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Fifth Blog Gsoc 2017
The last month was not easy. Some things had to be re-written because they were not very well written. For example, I wrote a system of “sensors”, the logic of which was laid in the destructors of objects. This is a non-obvious logic of work, it had to be rewritten.
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Polkit Support in KIO - Progess so far
In this post I intend to report the whereabouts of my project. First of all me not posting any updates about my project was due to two problems that showed up when I was two weeks into the coding period. One, which I had anticipated, was to decide from where to show a warning dialog during the brief period of time when privileges are elevated. The problem was that showing the prompt from KIO::Slave resulted in repetition and to show it from KIO::JobUiDelegate permissions of destination folder was needed beforehand which required additional computation. So for this I decided to add a signal in KIO::Slave and all the necessary code for additional prompts in KIO::Job. This way the KIO slave emits the signal whenever it encounters ACCESS DENIED error and then job decides whether or not to show the prompt. The other problem was to figure out how to modify files created by a privileged process by an underprivileged one. By the way the latter was completely uncalled-for and it took me around two weeks to decide on a solution. To send data between processes I tried every possible IPC mechanism involving shared memory, pipes and sockets. At last I decided on sharing file descriptor between the privileged and under-privileged process and to accomplish that I used Unix local domain sockets.
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Preview: Multi-Cursor support in the Kate Text Editor
It allows you to have an arbitrary amount of cursors and selections in KTextEditor. They all mirror what you do with the primary one — text input, text removal, navigation, text selection, …
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