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Main: move the stage hierarchy initialization to LayoutManager

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It is cleaner to concentrate all layout and chrome management
in one place, instead of having it scattered around the codebase.

https://bugzilla.gnome.org/show_bug.cgi?id=682429
This commit is contained in:
Giovanni Campagna 2013-01-10 16:02:20 -05:00 committed by Ray Strode
parent 4dc9540325
commit 33dde63256
3 changed files with 55 additions and 40 deletions
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59
js/ui/layout.js
View File

@ -18,6 +18,7 @@ const HOT_CORNER_ACTIVATION_TIMEOUT = 0.5;
const STARTUP_ANIMATION_TIME = 0.2;
const KEYBOARD_ANIMATION_TIME = 0.15;
const PLYMOUTH_TRANSITION_TIME = 1;
const DEFAULT_BACKGROUND_COLOR = Clutter.Color.from_pixel(0x2e3436ff);
// The message tray takes this much pressure
// in the pressure barrier at once to release it.
@ -126,6 +127,42 @@ const LayoutManager = new Lang.Class({
this._trackedActors = [];
// Normally, the stage is always covered so Clutter doesn't need to clear
// it; however it becomes visible during the startup animation
// See the comment below for a longer explanation
global.stage.color = DEFAULT_BACKGROUND_COLOR;
// Set up stage hierarchy to group all UI actors under one container.
this.uiGroup = new Shell.GenericContainer({ name: 'uiGroup' });
this.uiGroup.connect('allocate',
function (actor, box, flags) {
let children = actor.get_children();
for (let i = 0; i < children.length; i++)
children[i].allocate_preferred_size(flags);
});
this.uiGroup.connect('get-preferred-width',
function(actor, forHeight, alloc) {
let width = global.stage.width;
[alloc.min_size, alloc.natural_size] = [width, width];
});
this.uiGroup.connect('get-preferred-height',
function(actor, forWidth, alloc) {
let height = global.stage.height;
[alloc.min_size, alloc.natural_size] = [height, height];
});
global.window_group.reparent(this.uiGroup);
// Now, you might wonder why we went through all the hoops to implement
// the GDM greeter inside an X11 compositor, to do this at the end...
// However, hiding this is necessary to avoid showing the background during
// the initial animation, before Gdm.LoginDialog covers everything
if (Main.sessionMode.isGreeter)
global.window_group.hide();
global.overlay_group.reparent(this.uiGroup);
global.stage.add_child(this.uiGroup);
this.screenShieldGroup = new St.Widget({ name: 'screenShieldGroup',
visible: false,
clip_to_allocation: true,
@ -260,7 +297,7 @@ const LayoutManager = new Lang.Class({
if (!haveTopLeftCorner)
continue;
let corner = new HotCorner();
let corner = new HotCorner(this);
this._hotCorners.push(corner);
corner.actor.set_position(cornerX, cornerY);
this.addChrome(corner.actor);
@ -422,7 +459,7 @@ const LayoutManager = new Lang.Class({
if (Main.sessionMode.isGreeter) {
this._background = Meta.BackgroundActor.new_for_screen(global.screen);
if (this._background != null) {
Main.uiGroup.add_actor(this._background);
this.uiGroup.add_actor(this._background);
Tweener.addTween(this._background,
{ opacity: 0,
time: PLYMOUTH_TRANSITION_TIME,
@ -540,7 +577,7 @@ const LayoutManager = new Lang.Class({
// monitor (it will be hidden whenever a fullscreen window is visible,
// and shown otherwise)
addChrome: function(actor, params) {
Main.uiGroup.add_actor(actor);
this.uiGroup.add_actor(actor);
this._trackActor(actor, params);
},
@ -591,7 +628,7 @@ const LayoutManager = new Lang.Class({
//
// Removes @actor from the chrome
removeChrome: function(actor) {
Main.uiGroup.remove_actor(actor);
this.uiGroup.remove_actor(actor);
this._untrackActor(actor);
},
@ -610,7 +647,7 @@ const LayoutManager = new Lang.Class({
let actorData = Params.parse(params, defaultParams);
actorData.actor = actor;
actorData.isToplevel = actor.get_parent() == Main.uiGroup;
actorData.isToplevel = actor.get_parent() == this.uiGroup;
actorData.visibleId = actor.connect('notify::visible',
Lang.bind(this, this._queueUpdateRegions));
actorData.allocationId = actor.connect('notify::allocation',
@ -646,7 +683,7 @@ const LayoutManager = new Lang.Class({
} else {
let i = this._findActor(actor);
let actorData = this._trackedActors[i];
actorData.isToplevel = (newParent == Main.uiGroup);
actorData.isToplevel = (newParent == this.uiGroup);
}
},
@ -820,7 +857,7 @@ const LayoutManager = new Lang.Class({
if (actorData.affectsInputRegion &&
actorData.actor.get_paint_visibility() &&
!Main.uiGroup.get_skip_paint(actorData.actor))
!this.uiGroup.get_skip_paint(actorData.actor))
rects.push(rect);
if (!actorData.affectsStruts)
@ -919,7 +956,7 @@ Signals.addSignalMethods(LayoutManager.prototype);
const HotCorner = new Lang.Class({
Name: 'HotCorner',
_init : function() {
_init : function(layoutManager) {
// We use this flag to mark the case where the user has entered the
// hot corner and has not left both the hot corner and a surrounding
// guard area (the "environs"). This avoids triggering the hot corner
@ -973,9 +1010,9 @@ const HotCorner = new Lang.Class({
this._ripple2 = new St.BoxLayout({ style_class: 'ripple-box', opacity: 0, visible: false });
this._ripple3 = new St.BoxLayout({ style_class: 'ripple-box', opacity: 0, visible: false });
Main.uiGroup.add_actor(this._ripple1);
Main.uiGroup.add_actor(this._ripple2);
Main.uiGroup.add_actor(this._ripple3);
layoutManager.uiGroup.add_actor(this._ripple1);
layoutManager.uiGroup.add_actor(this._ripple2);
layoutManager.uiGroup.add_actor(this._ripple3);
},
destroy: function() {

34
js/ui/main.js
View File

@ -113,37 +113,15 @@ function start() {
tracker.connect('startup-sequence-changed', _queueCheckWorkspaces);
// The stage is always covered so Clutter doesn't need to clear it; however
// the color is used as the default contents for the Mutter root background
// actor so set it anyways.
global.stage.color = DEFAULT_BACKGROUND_COLOR;
global.stage.no_clear_hint = true;
_loadDefaultStylesheet();
// Set up stage hierarchy to group all UI actors under one container.
uiGroup = new Shell.GenericContainer({ name: 'uiGroup' });
uiGroup.connect('allocate',
function (actor, box, flags) {
let children = uiGroup.get_children();
for (let i = 0; i < children.length; i++)
children[i].allocate_preferred_size(flags);
});
uiGroup.connect('get-preferred-width',
function(actor, forHeight, alloc) {
let width = global.stage.width;
[alloc.min_size, alloc.natural_size] = [width, width];
});
uiGroup.connect('get-preferred-height',
function(actor, forWidth, alloc) {
let height = global.stage.height;
[alloc.min_size, alloc.natural_size] = [height, height];
});
global.window_group.reparent(uiGroup);
global.overlay_group.reparent(uiGroup);
global.stage.add_actor(uiGroup);
// Setup the stage hierarchy early
layoutManager = new Layout.LayoutManager();
// Various parts of the codebase still refers to Main.uiGroup
// instead using the layoutManager. This keeps that code
// working until it's updated.
uiGroup = layoutManager.uiGroup;
xdndHandler = new XdndHandler.XdndHandler();
ctrlAltTabManager = new CtrlAltTab.CtrlAltTabManager();
overview = new Overview.Overview();

2
js/ui/panel.js
View File

@ -644,7 +644,7 @@ const ActivitiesButton = new Lang.Class({
this.actor.label_actor = this._label;
this.hotCorner = new Layout.HotCorner();
this.hotCorner = new Layout.HotCorner(Main.layoutManager);
container.add_actor(this.hotCorner.actor);
this.actor.connect('captured-event', Lang.bind(this, this._onCapturedEvent));