workspace: Move window previews to a child container

Currently, Workspace is a single actor that contains both the background,
and all window previews, and is managed by WorkspaceLayout. In the future,
this concentrating aspect of it will bite us; we want the window previews
to be clipped to the allocation, but not the background, since it will
have shadows.

Make Workspace subclass St.Widget with a ClutterBinLayout as layout manager,
and move window previews to a child actor. To reduce the impact of this
extra actor, it's a ClutterActor instead of a StWidget, and the spacing is
still set on Workspace itself.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1691>
This commit is contained in:
Georges Basile Stavracas Neto 2021-02-17 10:36:36 -03:00 committed by Marge Bot
parent b05280a2cd
commit 37bcd3d428

View File

@ -975,14 +975,22 @@ class Workspace extends St.Widget {
super._init({
style_class: 'window-picker',
pivot_point: new Graphene.Point({ x: 0.5, y: 0.5 }),
layout_manager: new WorkspaceLayout(metaWorkspace, monitorIndex),
reactive: true,
layout_manager: new Clutter.BinLayout(),
});
const layoutManager = new WorkspaceLayout(metaWorkspace, monitorIndex);
this._container = new Clutter.Actor({
reactive: true,
x_expand: true,
y_expand: true,
});
this._container.layout_manager = layoutManager;
this.add_child(this._container);
this.metaWorkspace = metaWorkspace;
this._activeWorkspaceChangedId =
this.metaWorkspace?.connect('notify::active', () => {
this.layoutManager.syncOverlays();
layoutManager.syncOverlays();
});
this._overviewAdjustment = overviewAdjustment;
@ -994,7 +1002,7 @@ class Workspace extends St.Widget {
// Background
this._background = new WorkspaceBackground(monitorIndex);
this.layout_manager.setBackground(this._background);
layoutManager.setBackground(this._background);
const clickAction = new Clutter.ClickAction();
clickAction.connect('clicked', action => {
@ -1009,7 +1017,7 @@ class Workspace extends St.Widget {
}
});
this.bind_property('mapped', clickAction, 'enabled', GObject.BindingFlags.SYNC_CREATE);
this.add_action(clickAction);
this._container.add_action(clickAction);
this.connect('style-changed', this._onStyleChanged.bind(this));
this.connect('destroy', this._onDestroy.bind(this));
@ -1051,7 +1059,7 @@ class Workspace extends St.Widget {
}
vfunc_get_focus_chain() {
return this.layout_manager.getFocusChain();
return this._container.layout_manager.getFocusChain();
}
_lookupIndex(metaWindow) {
@ -1067,7 +1075,7 @@ class Workspace extends St.Widget {
}
syncStacking(stackIndices) {
this.layout_manager.syncStacking(stackIndices);
this._container.layout_manager.syncStacking(stackIndices);
}
_doRemoveWindow(metaWin) {
@ -1082,7 +1090,7 @@ class Workspace extends St.Widget {
// around while the user is interacting with the workspace, we delay
// the positioning until the pointer remains still for at least 750 ms
// or is moved outside the workspace
this.layout_manager.layout_frozen = true;
this._container.layout_manager.layout_frozen = true;
if (this._layoutFrozenId > 0) {
GLib.source_remove(this._layoutFrozenId);
@ -1107,7 +1115,7 @@ class Workspace extends St.Widget {
return GLib.SOURCE_CONTINUE;
}
this.layout_manager.layout_frozen = false;
this._container.layout_manager.layout_frozen = false;
this._layoutFrozenId = 0;
return GLib.SOURCE_REMOVE;
});
@ -1171,7 +1179,7 @@ class Workspace extends St.Widget {
if (this._layoutFrozenId > 0) {
// If a window was closed before, unfreeze the layout to ensure
// the new window is immediately shown
this.layout_manager.layout_frozen = false;
this._container.layout_manager.layout_frozen = false;
GLib.source_remove(this._layoutFrozenId);
this._layoutFrozenId = 0;
@ -1217,7 +1225,7 @@ class Workspace extends St.Widget {
this._layoutFrozenId = 0;
}
this.layout_manager.layout_frozen = true;
this._container.layout_manager.layout_frozen = true;
this._overviewHiddenId = Main.overview.connect('hidden', this._doneLeavingOverview.bind(this));
}
@ -1244,11 +1252,11 @@ class Workspace extends St.Widget {
}
_doneLeavingOverview() {
this.layout_manager.layout_frozen = false;
this._container.layout_manager.layout_frozen = false;
}
_doneShowingOverview() {
this.layout_manager.layout_frozen = false;
this._container.layout_manager.layout_frozen = false;
}
_isMyWindow(window) {
@ -1292,7 +1300,7 @@ class Workspace extends St.Widget {
this._doRemoveWindow(metaWindow);
});
this.layout_manager.addWindow(clone, metaWindow);
this._container.layout_manager.addWindow(clone, metaWindow);
if (this._windows.length == 0)
clone.setStackAbove(this._background);
@ -1311,14 +1319,14 @@ class Workspace extends St.Widget {
if (index == -1)
return null;
this.layout_manager.removeWindow(this._windows[index]);
this._container.layout_manager.removeWindow(this._windows[index]);
return this._windows.splice(index, 1).pop();
}
_onStyleChanged() {
const themeNode = this.get_theme_node();
this.layout_manager.spacing = themeNode.get_length('spacing');
this._container.layout_manager.spacing = themeNode.get_length('spacing');
}
_onCloneSelected(clone, time) {
@ -1379,6 +1387,6 @@ class Workspace extends St.Widget {
}
get stateAdjustment() {
return this.layout_manager.stateAdjustment;
return this._container.layout_manager.stateAdjustment;
}
});