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[Chrome] clean up APIs and remove workarounds

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https://bugzilla.gnome.org/show_bug.cgi?id=597044
This commit is contained in:
Dan Winship 2009-11-11 13:11:34 -05:00
parent e9787c0f1e
commit b0cb8fb85a
3 changed files with 51 additions and 102 deletions
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138
js/ui/chrome.js
View File

@ -7,6 +7,7 @@ const Meta = imports.gi.Meta;
const Shell = imports.gi.Shell;
const Main = imports.ui.main;
const Params = imports.misc.params;
// This manages the shell "chrome"; the UI that's visible in the
// normal mode (ie, outside the Overview), that surrounds the main
@ -54,7 +55,7 @@ Chrome.prototype = {
// addActor:
// @actor: an actor to add to the chrome layer
// @shapeActor: optional "shape actor".
// @params: (optional) additional params
//
// Adds @actor to the chrome layer and extends the input region
// and window manager struts to include it. (Window manager struts
@ -64,59 +65,45 @@ Chrome.prototype = {
// in its visibility will affect the input region, but NOT the
// struts.
//
// If @shapeActor is provided, it will be used instead of @actor
// for the input region/strut shape. (This lets you have things like
// drop shadows in @actor that don't affect the struts.) It must
// be a child of @actor. Alternatively, you can pass %null for
// @shapeActor to indicate that @actor should not affect the input
// region or struts at all.
addActor: function(actor, shapeActor) {
if (shapeActor === undefined)
shapeActor = actor;
else if (shapeActor && !this._verifyAncestry(shapeActor, actor))
throw new Error('shapeActor is not a descendent of actor');
// If %visibleInOverview is %true in @params, @actor will remain
// visible when the overview is brought up. Otherwise it will
// automatically be hidden. If %affectsStruts or %affectsInputRegion
// is %false, the actor will not have the indicated effect.
addActor: function(actor, params) {
params = Params.parse(params, { visibleInOverview: false,
affectsStruts: true,
affectsInputRegion: true });
this.nonOverviewActor.add_actor(actor);
if (shapeActor)
this._trackActor(shapeActor, true, true);
},
// setVisibleInOverview:
// @actor: an actor in the chrome layer
// @visible: Overview visibility
//
// By default, actors in the chrome layer are automatically hidden
// when the Overview is shown. This can be used to override that
// behavior
setVisibleInOverview: function(actor, visible) {
if (!this._verifyAncestry(actor, this.actor))
throw new Error('actor is not a descendent of the chrome layer');
if (visible)
actor.reparent(this.actor);
if (params.visibleInOverview)
this.actor.add_actor(actor);
else
actor.reparent(this.nonOverviewActor);
this.nonOverviewActor.add_actor(actor);
this._trackActor(actor, params.affectsInputRegion, params.affectsStruts);
},
// addInputRegionActor:
// @actor: an actor to add to the stage input region
// trackActor:
// @actor: a descendant of the chrome to begin tracking
// @params: parameters describing how to track @actor
//
// Adds @actor to the stage input region, as with addActor(), but
// for actors that are already descendants of the chrome layer.
addInputRegionActor: function(actor) {
// Tells the chrome to track @actor, which must be a descendant
// of an actor added via addActor(). This can be used to extend the
// struts or input region to cover specific children.
trackActor: function(actor, params) {
if (!this._verifyAncestry(actor, this.actor))
throw new Error('actor is not a descendent of the chrome layer');
this._trackActor(actor, true, false);
params = Params.parse(params, { affectsStruts: true,
affectsInputRegion: true });
this._trackActor(actor, params.affectsInputRegion, params.affectsStruts);
},
// removeInputRegionActor:
// @actor: an actor previously added to the stage input region
// untrackActor:
// @actor: an actor previously tracked via trackActor()
//
// Undoes the effect of addInputRegionActor()
removeInputRegionActor: function(actor) {
this._untrackActor(actor, true, false);
// Undoes the effect of trackActor()
untrackActor: function(actor) {
this._untrackActor(actor);
},
// removeActor:
@ -128,7 +115,7 @@ Chrome.prototype = {
this.nonOverviewActor.remove_actor(actor);
else
this.actor.remove_actor(actor);
this._untrackActor(actor, true, true);
this._untrackActor(actor);
},
_findActor: function(actor) {
@ -142,23 +129,13 @@ Chrome.prototype = {
_trackActor: function(actor, inputRegion, strut) {
let actorData;
let i = this._findActor(actor);
if (i != -1) {
actorData = this._trackedActors[i];
if (inputRegion)
actorData.inputRegion++;
if (strut)
actorData.strut++;
if (!inputRegion && !strut)
actorData.children++;
return;
}
if (this._findActor(actor) != -1)
throw new Error('trying to re-track existing chrome actor');
actorData = { actor: actor,
inputRegion: inputRegion ? 1 : 0,
strut: strut ? 1 : 0,
children: 0 };
inputRegion: inputRegion,
strut: strut };
actorData.visibleId = actor.connect('notify::visible',
Lang.bind(this, this._queueUpdateRegions));
@ -166,54 +143,31 @@ Chrome.prototype = {
Lang.bind(this, this._queueUpdateRegions));
actorData.parentSetId = actor.connect('parent-set',
Lang.bind(this, this._actorReparented));
// Note that destroying actor will unset its parent, so we don't
// need to connect to 'destroy' too.
this._trackedActors.push(actorData);
actor = actor.get_parent();
if (actor != this.actor && actor != this.nonOverviewActor)
this._trackActor(actor, false, false);
if (inputRegion || strut)
this._queueUpdateRegions();
this._queueUpdateRegions();
},
_untrackActor: function(actor, inputRegion, strut) {
_untrackActor: function(actor) {
let i = this._findActor(actor);
if (i == -1)
return;
let actorData = this._trackedActors[i];
if (inputRegion)
actorData.inputRegion--;
if (strut)
actorData.strut--;
if (!inputRegion && !strut)
actorData.children--;
this._trackedActors.splice(i, 1);
actor.disconnect(actorData.visibleId);
actor.disconnect(actorData.allocationId);
actor.disconnect(actorData.parentSetId);
if (actorData.inputRegion <= 0 && actorData.strut <= 0 && actorData.children <= 0) {
this._trackedActors.splice(i, 1);
actor.disconnect(actorData.visibleId);
actor.disconnect(actorData.allocationId);
actor.disconnect(actorData.parentSetId);
actor = actor.get_parent();
if (actor && actor != this.actor && actor != this.nonOverviewActor)
this._untrackActor(actor, false, false);
}
if (inputRegion || strut)
this._queueUpdateRegions();
this._queueUpdateRegions();
},
_actorReparented: function(actor, oldParent) {
if (this._verifyAncestry(actor, this.actor)) {
let newParent = actor.get_parent();
if (newParent != this.actor && newParent != this.nonOverviewActor)
this._trackActor(newParent, false, false);
}
if (oldParent != this.actor && oldParent != this.nonOverviewActor)
this._untrackActor(oldParent, false, false);
if (!this._verifyAncestry(actor, this.actor))
this._untrackActor(actor);
},
_overviewShowing: function() {

11
js/ui/panel.js
View File

@ -420,8 +420,7 @@ Panel.prototype = {
this.button.actor.active = false;
}));
Main.chrome.addActor(this.actor);
Main.chrome.setVisibleInOverview(this.actor, true);
Main.chrome.addActor(this.actor, { visibleInOverview: true });
// Start the clock
this._updateClock();
@ -558,12 +557,8 @@ CalendarPopup.prototype = {
this.calendar = new Calendar.Calendar();
this.actor.add(this.calendar.actor);
// Directly adding the actor to Main.chrome.actor is a hack to
// work around the fact that there is no way to add an actor that
// affects the input region but not the shape.
// See: https://bugzilla.gnome.org/show_bug.cgi?id=597044
Main.chrome.actor.add_actor(this.actor);
Main.chrome.addInputRegionActor(this.actor);
Main.chrome.addActor(this.actor, { visibleInOverview: true,
affectsStruts: false });
this.actor.y = (panelActor.y + panelActor.height - this.actor.height);
},

4
js/ui/widgetBox.js
View File

@ -331,7 +331,7 @@ WidgetBox.prototype = {
onCompleteScope: this });
this.state = this._widget.state = Widget.STATE_POPPING_OUT;
Main.chrome.addInputRegionActor(this._hbox);
Main.chrome.trackActor(this._hbox, { affectsStruts: false });
},
_popOutComplete: function() {
@ -370,7 +370,7 @@ WidgetBox.prototype = {
this._egroup.hide();
this._ebox.x = 0;
Main.chrome.removeInputRegionActor(this._hbox);
Main.chrome.untrackActor(this._hbox);
},
destroy: function() {