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endSessionDialog: Factor out _updateDescription from _updateContent

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_startTimer adds a tweener to implement the description countdown, which
updates the entire content on each iteration, including the icon. This
causes a significant impact on performance, especially when accessibility
is enabled, as it causes a flood of AtkObject:state-change:showing events.
As the countdown only affects the description, factor out _updateDescription
and use it in _startTimer, and only do a full update of all contents when
necessary.

https://bugzilla.gnome.org/show_bug.cgi?id=674210
This commit is contained in:
Alejandro Piñeiro 2012-06-05 11:51:36 +02:00 committed by Florian Müllner
parent 4ba4a501fd
commit 7b048fc092
1 changed files with 23 additions and 13 deletions
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36
js/ui/endSessionDialog.js
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@ -342,7 +342,7 @@ const EndSessionDialog = new Lang.Class({
}
},
_updateContent: function() {
_updateDescription: function() {
if (this.state != ModalDialog.State.OPENING &&
this.state != ModalDialog.State.OPENED)
return;
@ -352,17 +352,6 @@ const EndSessionDialog = new Lang.Class({
let subject = dialogContent.subject;
let description;
if (this._user.is_loaded && !dialogContent.iconName) {
let iconFile = this._user.get_icon_file();
if (GLib.file_test(iconFile, GLib.FileTest.EXISTS))
this._setIconFromFile(iconFile, dialogContent.iconStyleClass);
else
this._setIconFromName('avatar-default', dialogContent.iconStyleClass);
} else if (dialogContent.iconName) {
this._setIconFromName(dialogContent.iconName,
dialogContent.iconStyleClass);
}
if (this._inhibitors.length > 0) {
this._stopTimer();
description = dialogContent.inhibitedDescription;
@ -395,6 +384,27 @@ const EndSessionDialog = new Lang.Class({
_setLabelText(this._descriptionLabel, description);
},
_updateContent: function() {
if (this.state != ModalDialog.State.OPENING &&
this.state != ModalDialog.State.OPENED)
return;
let dialogContent = DialogContent[this._type];
if (this._user.is_loaded && !dialogContent.iconName) {
let iconFile = this._user.get_icon_file();
if (GLib.file_test(iconFile, GLib.FileTest.EXISTS))
this._setIconFromFile(iconFile, dialogContent.iconStyleClass);
else
this._setIconFromName('avatar-default', dialogContent.iconStyleClass);
} else if (dialogContent.iconName) {
this._setIconFromName(dialogContent.iconName,
dialogContent.iconStyleClass);
}
this._updateDescription();
},
_updateButtons: function() {
let dialogContent = DialogContent[this._type];
let buttons = [{ action: Lang.bind(this, this.cancel),
@ -441,7 +451,7 @@ const EndSessionDialog = new Lang.Class({
{ _secondsLeft: 0,
time: this._secondsLeft,
transition: 'linear',
onUpdate: Lang.bind(this, this._updateContent),
onUpdate: Lang.bind(this, this._updateDescription),
onComplete: Lang.bind(this, function() {
let dialogContent = DialogContent[this._type];
let button = dialogContent.confirmButtons[dialogContent.confirmButtons.length - 1];