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enhance history cache

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This commit is contained in:
Wolfgang Rumpler 2018-08-03 17:28:31 +02:00
parent e6c7c269d9
commit e9d7097f19
2 changed files with 76 additions and 56 deletions
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82
randomwallpaper@iflow.space/elements.js
View file

@ -246,7 +246,11 @@ var StatusElement = new Lang.Class({
time: 1,
transition: 'easeInOutSine',
onComplete: function () {
Tweener.addTween(_this, _this.loadingTweenOut);
try {
Tweener.addTween(_this, _this.loadingTweenOut);
} catch (e) {
// swollow (not really important)
}
}
};
@ -256,7 +260,11 @@ var StatusElement = new Lang.Class({
transition: 'easeInOutSine',
onComplete: function () {
if (_this.isLoading) {
Tweener.addTween(_this, _this.loadingTweenIn);
try {
Tweener.addTween(_this, _this.loadingTweenIn);
} catch (e) {
// swollow (not really important)
}
} else {
return false;
}
@ -283,6 +291,13 @@ var HistorySection = new Lang.Class({
Name: 'HistorySection',
Extends: PopupMenu.PopupMenuSection,
/**
* Cache HistoryElements for performance of long histories.
*/
_historySectionCache: {},
_historyCache: [],
_init: function () {
this.parent();
@ -294,12 +309,63 @@ var HistorySection = new Lang.Class({
this.actor.add_actor(this.box);
},
/**
* Clears the history section without destroying the child actors.
*/
clearSection: function() {
this.box.remove_all_children();
}
updateList: function(history, onEnter, onLeave, onSelect) {
if (this._historyCache.length <= 1) {
this.removeAll(); // remove empty history element
}
let existingHistoryElements = [];
for (let i = 1; i < history.length; i++) {
let historyID = history[i].id;
let tmp;
if (!(historyID in this._historySectionCache)) {
tmp = new HistoryElement(history[i], i);
tmp.actor.connect('key-focus-in', onEnter);
tmp.actor.connect('key-focus-out', onLeave);
tmp.actor.connect('enter-event', onEnter);
tmp.connect('activate', onSelect);
this._historySectionCache[historyID] = tmp;
this.addMenuItem(tmp, i-1);
} else {
tmp = this._historySectionCache[historyID];
tmp.setIndex(i);
}
existingHistoryElements.push(historyID);
}
this._cleanupHistoryCache(existingHistoryElements);
this._historyCache = history;
},
_cleanupHistoryCache: function(existingIDs) {
let destroyIDs = Object.keys(this._historySectionCache).filter((i) => existingIDs.indexOf(i) === -1);
destroyIDs.map(id => {
this._historySectionCache[id].destroy();
delete this._historySectionCache[id];
});
},
clear() {
this._cleanupHistoryCache([]);
this.removeAll();
this.addMenuItem(
new PopupMenu.PopupMenuItem('No recent wallpaper ...', {
activate: false,
hover: false,
style_class: 'rwg-recent-lable',
can_focus: false
})
);
this._historyCache = [];
},
});

50
randomwallpaper@iflow.space/extension.js
View file

@ -77,11 +77,6 @@ var RandomWallpaperEntry = new Lang.Class({
Name: "RandomWallpaperEntry",
logger: null,
/**
* Cache HistoryElements for performance of long histories.
*/
_historySectionCache: {},
_init: function (menuAlignment, nameText) {
this.parent(menuAlignment, nameText);
this.logger = new LoggerModule.Logger('RWG3', 'RandomWallpaperEntry');
@ -191,37 +186,12 @@ var RandomWallpaperEntry = new Lang.Class({
let historyController = wallpaperController.getHistoryController();
let history = historyController.history;
this.historySection.clearSection();
if (history.length <= 1) {
this.clearHistoryList();
return;
}
let existingHistoryElements = [];
for (let i = 1; i < history.length; i++) {
let historyID = history[i].id;
let tmp;
if (!(historyID in this._historySectionCache)) {
tmp = new CustomElements.HistoryElement(history[i], i);
tmp.actor.connect('key-focus-in', onEnter);
tmp.actor.connect('key-focus-out', onLeave);
tmp.actor.connect('enter-event', onEnter);
tmp.connect('activate', onSelect);
this._historySectionCache[historyID] = tmp;
} else {
tmp = this._historySectionCache[historyID];
tmp.setIndex(i);
}
existingHistoryElements.push(historyID)
this.historySection.addMenuItem(tmp, i-1);
}
this._cleanupHistoryCache(existingHistoryElements);
function onLeave(actor) {
wallpaperController.resetWallpaper();
}
@ -234,27 +204,11 @@ var RandomWallpaperEntry = new Lang.Class({
wallpaperController.setWallpaper(actor.historyEntry.id);
}
},
_cleanupHistoryCache: function(existingIDs) {
let destroyIDs = Object.keys(this._historySectionCache).filter((i) => existingIDs.indexOf(i) === -1);
destroyIDs.map(id => {
delete this._historySectionCache[id];
});
this.historySection.updateList(history, onEnter, onLeave, onSelect);
},
clearHistoryList: function () {
this._cleanupHistoryCache([]);
this.historySection.removeAll();
let empty = new PopupMenu.PopupMenuItem('No recent wallpaper ...', {
activate: false,
hover: false,
style_class: 'rwg-recent-lable',
can_focus: false
});
this.historySection.addMenuItem(empty);
this.historySection.clear();
},
});