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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `RequestsTrait` trait in crate `wayland_client`."><meta name="keywords" content="rust, rustlang, rust-lang, RequestsTrait"><title>wayland_client::protocol::wl_subsurface::RequestsTrait - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="shortcut icon" href="../../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../../wayland_client/index.html'><div class='logo-container'><img src='../../../rust-logo.png' alt='logo'></div></a><p class='location'>Trait RequestsTrait</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.destroy">destroy</a><a href="#tymethod.place_above">place_above</a><a href="#tymethod.place_below">place_below</a><a href="#tymethod.set_desync">set_desync</a><a href="#tymethod.set_position">set_position</a><a href="#tymethod.set_sync">set_sync</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../../index.html'>wayland_client</a>::<wbr><a href='../index.html'>protocol</a>::<wbr><a href='index.html'>wl_subsurface</a></p><script>window.sidebarCurrent = {name: 'RequestsTrait', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../../src/wayland_client/home/mrh/source/Trac3r-rust/target/debug/build/wayland-client-893466244f089367/out/wayland_c_api.rs.html#1' title='goto source code'>[src]</a></span><span class='in-band'>Trait <a href='../../index.html'>wayland_client</a>::<wbr><a href='../index.html'>protocol</a>::<wbr><a href='index.html'>wl_subsurface</a>::<wbr><a class="trait" href=''>RequestsTrait</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust trait'>pub trait RequestsTrait {
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fn <a href='#tymethod.destroy' class='fnname'>destroy</a>(&self);
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<div class='item-spacer'></div> fn <a href='#tymethod.set_position' class='fnname'>set_position</a>(&self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>);
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<div class='item-spacer'></div> fn <a href='#tymethod.place_above' class='fnname'>place_above</a>(&self, sibling: &<a class="struct" href="../../../wayland_client/struct.Proxy.html" title="struct wayland_client::Proxy">Proxy</a><<a class="struct" href="../../../wayland_client/protocol/wl_surface/struct.WlSurface.html" title="struct wayland_client::protocol::wl_surface::WlSurface">WlSurface</a>>);
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<div class='item-spacer'></div> fn <a href='#tymethod.place_below' class='fnname'>place_below</a>(&self, sibling: &<a class="struct" href="../../../wayland_client/struct.Proxy.html" title="struct wayland_client::Proxy">Proxy</a><<a class="struct" href="../../../wayland_client/protocol/wl_surface/struct.WlSurface.html" title="struct wayland_client::protocol::wl_surface::WlSurface">WlSurface</a>>);
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<div class='item-spacer'></div> fn <a href='#tymethod.set_sync' class='fnname'>set_sync</a>(&self);
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<div class='item-spacer'></div> fn <a href='#tymethod.set_desync' class='fnname'>set_desync</a>(&self);
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}</pre></div>
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<h2 id='required-methods' class='small-section-header'>Required methods<a href='#required-methods' class='anchor'></a></h2><div class='methods'><h3 id='tymethod.destroy' class='method'><code id='destroy.v'>fn <a href='#tymethod.destroy' class='fnname'>destroy</a>(&self)</code></h3><div class='docblock'><p>remove sub-surface interface</p>
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<p>The sub-surface interface is removed from the wl_surface object
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that was turned into a sub-surface with a
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wl_subcompositor.get_subsurface request. The wl_surface's association
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to the parent is deleted, and the wl_surface loses its role as
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a sub-surface. The wl_surface is unmapped.</p>
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<p>This is a destructor, you cannot send requests to this object any longer once this method is called.</p>
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</div><h3 id='tymethod.set_position' class='method'><code id='set_position.v'>fn <a href='#tymethod.set_position' class='fnname'>set_position</a>(&self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>)</code></h3><div class='docblock'><p>reposition the sub-surface</p>
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<p>This schedules a sub-surface position change.
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The sub-surface will be moved so that its origin (top left
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corner pixel) will be at the location x, y of the parent surface
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coordinate system. The coordinates are not restricted to the parent
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surface area. Negative values are allowed.</p>
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<p>The scheduled coordinates will take effect whenever the state of the
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parent surface is applied. When this happens depends on whether the
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parent surface is in synchronized mode or not. See
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wl_subsurface.set_sync and wl_subsurface.set_desync for details.</p>
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<p>If more than one set_position request is invoked by the client before
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the commit of the parent surface, the position of a new request always
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replaces the scheduled position from any previous request.</p>
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<p>The initial position is 0, 0.</p>
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</div><h3 id='tymethod.place_above' class='method'><code id='place_above.v'>fn <a href='#tymethod.place_above' class='fnname'>place_above</a>(&self, sibling: &<a class="struct" href="../../../wayland_client/struct.Proxy.html" title="struct wayland_client::Proxy">Proxy</a><<a class="struct" href="../../../wayland_client/protocol/wl_surface/struct.WlSurface.html" title="struct wayland_client::protocol::wl_surface::WlSurface">WlSurface</a>>)</code></h3><div class='docblock'><p>restack the sub-surface</p>
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<p>This sub-surface is taken from the stack, and put back just
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above the reference surface, changing the z-order of the sub-surfaces.
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The reference surface must be one of the sibling surfaces, or the
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parent surface. Using any other surface, including this sub-surface,
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will cause a protocol error.</p>
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<p>The z-order is double-buffered. Requests are handled in order and
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applied immediately to a pending state. The final pending state is
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copied to the active state the next time the state of the parent
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surface is applied. When this happens depends on whether the parent
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surface is in synchronized mode or not. See wl_subsurface.set_sync and
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wl_subsurface.set_desync for details.</p>
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<p>A new sub-surface is initially added as the top-most in the stack
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of its siblings and parent.</p>
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</div><h3 id='tymethod.place_below' class='method'><code id='place_below.v'>fn <a href='#tymethod.place_below' class='fnname'>place_below</a>(&self, sibling: &<a class="struct" href="../../../wayland_client/struct.Proxy.html" title="struct wayland_client::Proxy">Proxy</a><<a class="struct" href="../../../wayland_client/protocol/wl_surface/struct.WlSurface.html" title="struct wayland_client::protocol::wl_surface::WlSurface">WlSurface</a>>)</code></h3><div class='docblock'><p>restack the sub-surface</p>
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<p>The sub-surface is placed just below the reference surface.
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See wl_subsurface.place_above.</p>
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</div><h3 id='tymethod.set_sync' class='method'><code id='set_sync.v'>fn <a href='#tymethod.set_sync' class='fnname'>set_sync</a>(&self)</code></h3><div class='docblock'><p>set sub-surface to synchronized mode</p>
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<p>Change the commit behaviour of the sub-surface to synchronized
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mode, also described as the parent dependent mode.</p>
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<p>In synchronized mode, wl_surface.commit on a sub-surface will
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accumulate the committed state in a cache, but the state will
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not be applied and hence will not change the compositor output.
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The cached state is applied to the sub-surface immediately after
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the parent surface's state is applied. This ensures atomic
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updates of the parent and all its synchronized sub-surfaces.
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Applying the cached state will invalidate the cache, so further
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parent surface commits do not (re-)apply old state.</p>
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<p>See wl_subsurface for the recursive effect of this mode.</p>
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</div><h3 id='tymethod.set_desync' class='method'><code id='set_desync.v'>fn <a href='#tymethod.set_desync' class='fnname'>set_desync</a>(&self)</code></h3><div class='docblock'><p>set sub-surface to desynchronized mode</p>
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<p>Change the commit behaviour of the sub-surface to desynchronized
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mode, also described as independent or freely running mode.</p>
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<p>In desynchronized mode, wl_surface.commit on a sub-surface will
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apply the pending state directly, without caching, as happens
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normally with a wl_surface. Calling wl_surface.commit on the
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parent surface has no effect on the sub-surface's wl_surface
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state. This mode allows a sub-surface to be updated on its own.</p>
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<p>If cached state exists when wl_surface.commit is called in
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desynchronized mode, the pending state is added to the cached
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state, and applied as a whole. This invalidates the cache.</p>
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<p>Note: even if a sub-surface is set to desynchronized, a parent
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sub-surface may override it to behave as synchronized. For details,
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see wl_subsurface.</p>
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<p>If a surface's parent surface behaves as desynchronized, then
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the cached state is applied on set_desync.</p>
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</div></div><span class='loading-content'>Loading content...</span>
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<h2 id='implementors' class='small-section-header'>Implementors<a href='#implementors' class='anchor'></a></h2><div class='item-list' id='implementors-list'><h3 id='impl-RequestsTrait' class='impl'><code class='in-band'>impl RequestsTrait for <a class="struct" href="../../../wayland_client/struct.Proxy.html" title="struct wayland_client::Proxy">Proxy</a><<a class="struct" href="../../../wayland_client/protocol/wl_subsurface/struct.WlSubsurface.html" title="struct wayland_client::protocol::wl_subsurface::WlSubsurface">WlSubsurface</a>></code><a href='#impl-RequestsTrait' class='anchor'></a><a class='srclink' href='../../../src/wayland_client/home/mrh/source/Trac3r-rust/target/debug/build/wayland-client-893466244f089367/out/wayland_c_api.rs.html#1' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.destroy' class="method hidden"><code id='destroy.v-1'>fn <a href='#method.destroy' class='fnname'>destroy</a>(&self)</code><a class='srclink' href='../../../src/wayland_client/home/mrh/source/Trac3r-rust/target/debug/build/wayland-client-893466244f089367/out/wayland_c_api.rs.html#1' title='goto source code'>[src]</a></h4><h4 id='method.set_position' class="method hidden"><code id='set_position.v-1'>fn <a href='#method.set_position' class='fnname'>set_position</a>(&self, x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>, y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>)</code><a class='srclink' href='../../../src/wayland_client/home/mrh/source/Trac3r-rust/target/debug/build/wayland-client-893466244f089367/out/wayland_c_api.rs.html#1' title='goto source code'>[src]</a></h4><h4 id='method.place_above' class="method hidden"><code id='place_above.v-1'>fn <a href='#method.place_above' class='fnname'>place_above</a>(&self, sibling: &<a class="struct" href="../../../wayland_client/struct.Proxy.html" title="struct wayland_client::Proxy">Proxy</a><<a class="struct" href="../../../wayland_client/protocol/wl_surface/struct.WlSurface.html" title="struct wayland_client::protocol::wl_surface::WlSurface">WlSurface</a>>)</code><a class='srclink' href='../../../src/wayland_client/home/mrh/source/Trac3r-rust/target/debug/build/wayland-client-893466244f089367/out/wayland_c_api.rs.html#1' title='goto source code'>[src]</a></h4><h4 id='method.place_below' class="method hidden"><code id='place_below.v-1'>fn <a href='#method.place_below' class='fnname'>place_below</a>(&self, sibling: &<a class="struct" href="../../../wayland_client/struct.Proxy.html" title="struct wayland_client::Proxy">Proxy</a><<a class="struct" href="../../../wayland_client/protocol/wl_surface/struct.WlSurface.html" title="struct wayland_client::protocol::wl_surface::WlSurface">WlSurface</a>>)</code><a class='srclink' href='../../../src/wayland_client/home/mrh/source/Trac3r-rust/target/debug/build/wayland-client-893466244f089367/out/wayland_c_api.rs.html#1' title='goto source code'>[src]</a></h4><h4 id='method.set_sync' class="method hidden"><code id='set_sync.v-1'>fn <a href='#method.set_sync' class='fnname'>set_sync</a>(&self)</code><a class='srclink' href='../../../src/wayland_client/home/mrh/source/Trac3r-rust/target/debug/build/wayland-client-893466244f089367/out/wayland_c_api.rs.html#1' title='goto source code'>[src]</a></h4><h4 id='method.set_desync' class="method hidden"><code id='set_desync.v-1'>fn <a href='#method.set_desync' class='fnname'>set_desync</a>(&self)</code><a class='srclink' href='../../../src/wayland_client/home/mrh/source/Trac3r-rust/target/debug/build/wayland-client-893466244f089367/out/wayland_c_api.rs.html#1' title='goto source code'>[src]</a></h4></div></div><span class='loading-content'>Loading content...</span><script type="text/javascript">window.inlined_types=new Set([]);</script><script type="text/javascript" async
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