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Window clones: only allocate when WindowActor is allocated

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Before we fixed the clone's position everytime it was allocated, eg. whenever we
would scroll a pixel.

Insetad we listen on the WindowActors allocation signal, which happens far less
as we don't move the WindowActor around much.
This commit is contained in:
Tor Hedin Brønner 2018-12-14 17:40:54 +01:00
parent b138e9083e
commit c36cdebc99
1 changed files with 19 additions and 39 deletions
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58
tiling.js
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@ -48,42 +48,6 @@ function init() {
oldMonitors = new Map();
backgroundGroup = global.window_group.first_child;
// LayoutManagers can't be re-evaluated so we wrap this in `init`
/**
A simple layout for our window clones that aligns the coordinates and
size of our clone with the window's frame
*/
WindowCloneLayout = new imports.lang.Class ({
Name: 'TiledCloneLayout',
Extends: Clutter.LayoutManager,
vfunc_get_preferred_height(container, forWidth) {
let frame = container.get_first_child().meta_window.get_frame_rect();
return [frame.height, frame.height];
},
vfunc_get_preferred_width(container, forHeight) {
let frame = container.get_first_child().meta_window.get_frame_rect();
return [frame.width, frame.width];
},
vfunc_allocate(container, box, flags) {
let child = container.first_child;
let actor = child.source;
if (!actor)
return;
let metaWindow = actor.meta_window;
let frame = metaWindow.get_frame_rect();
// Adjust the clone's origin to the north-west, so it will line up
// with the frame.
box.set_origin(actor.x - frame.x,
actor.y - frame.y);
box.set_size(actor.width, actor.height);
child.allocate(box, flags);
}
});
}
/**
@ -974,6 +938,8 @@ class Spaces extends Map {
display.get_tab_list(Meta.TabList.NORMAL_ALL, null)
.forEach(w => {
registerWindow(w);
// Fixup allocations on reload
allocateClone(w.get_compositor_private());
this.signals.connect(w, 'size-changed', resizeHandler);
});
@ -1549,9 +1515,9 @@ function registerWindow(metaWindow) {
let actor = metaWindow.get_compositor_private();
let clone = new Clutter.Clone({source: actor});
let container = new Clutter.Actor({
layout_manager: new WindowCloneLayout()
});
let container = new Clutter.Actor();
signals.connect(actor, "notify::allocation", allocateClone);
container.add_actor(clone);
container.targetX = 0;
clone.meta_window = metaWindow;
@ -1568,6 +1534,20 @@ function registerWindow(metaWindow) {
return true;
}
function allocateClone(actor) {
let metaWindow = actor.meta_window;
log(`allocate ${metaWindow.title}`);
let frame = metaWindow.get_frame_rect();
// Adjust the clone's origin to the north-west, so it will line up
// with the frame.
let container = metaWindow.clone;
let clone = container.first_child;
clone.set_position(actor.x - frame.x,
actor.y - frame.y);
clone.set_size(actor.width, actor.height);
container.set_size(frame.width, frame.height);
}
function destroyHandler(actor) {
signals.disconnect(actor);
}