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Wayland Still Working On Minimizing, Maximizing

Wayland

Published on 08 March 2013 08:09 PM EST
Written by Michael Larabel in Wayland
39 Comments

Support for minimize and maximize requests is still being worked on the for the Wayland protocol. Yes, this is to allow windows to be minimized or maximized within the Wayland environment.

Even with Wayland's heavy community-driven development and the significant backing of Intel, Wayland/Weston right now doesn't support minimize/maximize for windows. There's been patches floating around and now they're up to their third revision as of Friday.

Scott Moreau on Thursday published his third revision to the Wayland minimize/maximize protocol.
In order for clients to notify the compositor that they wish to be minimized, a minimize request is needed. This can be used to minimize the surface when a user clicks a minimize button for example.

The compositor needs a way to tell clients to maximize and unmaximize their surfaces. The desktop shell client can ask the compositor to send a surface an (un)maximize event, in response to a panel button for example.

The compositor can minimize and unminimize surfaces but clients can only request that its surface is minimized. The client doesn't need to be involved in a minimize action, unlike (un)maximize, it only needs a way to track its minimize state and request to be minimized. This patch adds minimize and unminimize protocol events for this purpose.

Further, the term minimize is relatively subjective and defined by the implementation. Clients should not expect that minimized means the surface will be invisable to the user. There are several use cases where displaying minimized surfaces will be useful. Clients might want to change input handling or pause when minimized but nothing should change with regards to submitting surface buffer updates.
This work will likely be integrated in time for the next release of Wayland and the reference Weston compositor. This shows how long it takes to design and implement well a full-featured modern display server, with Wayland having been developed for about five years now while Canonical hopes Mir will be ready by later in the year and ready for all form-factors by next April.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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