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Rebase recent documents on top of ShellDocSystem

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Rather of calling .exists() synchronously for all documents, use
ShellDocSystem's async API to only stat docs we're showing.

Use the doc opening functionality in ShellDocSystem.

Also, more intelligently do redisplay(); don't recreate actors
for recent docs if we already have one for that URI.  We may
need more intelligent caching here; if e.g. just the associated
application changes, we should probably reread the info.

https://bugzilla.gnome.org/show_bug.cgi?id=603522
This commit is contained in:
Colin Walters 2009-11-29 17:43:25 -05:00
parent a442dfea14
commit 949f67469c
3 changed files with 87 additions and 99 deletions
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100
js/misc/docInfo.js
View File

@ -32,50 +32,7 @@ DocInfo.prototype = {
},
launch : function() {
// While using Gio.app_info_launch_default_for_uri() would be
// shorter in terms of lines of code, we are not doing so
// because that would duplicate the work of retrieving the
// mime type.
let needsUri = Gio.file_new_for_uri(this.uri).get_path() == null;
let appInfo = Gio.app_info_get_default_for_type(this.mimeType, needsUri);
if (appInfo != null) {
appInfo.launch_uris([this.uri], Main.createAppLaunchContext());
} else {
log("Failed to get default application info for mime type " + this.mimeType +
". Will try to use the last application that registered the document.");
let appName = this.recentInfo.last_application();
let [success, appExec, count, time] = this.recentInfo.get_application_info(appName);
if (success) {
log("Will open a document with the following command: " + appExec);
// TODO: Change this once better support for creating
// GAppInfo is added to GtkRecentInfo, as right now
// this relies on the fact that the file uri is
// already a part of appExec, so we don't supply any
// files to appInfo.launch().
// The 'command line' passed to
// create_from_command_line is allowed to contain
// '%<something>' macros that are expanded to file
// name / icon name, etc, so we need to escape % as %%
appExec = appExec.replace(/%/g, "%%");
let appInfo = Gio.app_info_create_from_commandline(appExec, null, 0, null);
// The point of passing an app launch context to
// launch() is mostly to get startup notification and
// associated benefits like the app appearing on the
// right desktop; but it doesn't really work for now
// because with the way we create the appInfo we
// aren't reading the application's desktop file, and
// thus don't find the StartupNotify=true in it. So,
// despite passing the app launch context, no startup
// notification occurs.
appInfo.launch([], Main.createAppLaunchContext());
} else {
log("Failed to get application info for " + this.uri);
}
}
Shell.DocSystem.get_default().open(this.recentInfo);
},
exists : function() {
@ -91,50 +48,51 @@ function getDocManager() {
return docManagerInstance;
}
/**
* DocManager wraps the DocSystem, primarily to expose DocInfo objects
* which conform to the GenericDisplay item API.
*/
function DocManager() {
this._init();
}
DocManager.prototype = {
_init: function() {
this._recentManager = Gtk.RecentManager.get_default();
this._items = {};
this._recentManager.connect('changed', Lang.bind(this, function(recentManager) {
this._reload();
this.emit('changed');
}));
this._docSystem = Shell.DocSystem.get_default();
this._infosByTimestamp = [];
this._infosByUri = {};
this._docSystem.connect('changed', Lang.bind(this, this._reload));
this._reload();
},
_reload: function() {
let docs = this._recentManager.get_items();
let newItems = {};
let docs = this._docSystem.get_all();
this._infosByTimestamp = [];
this._infosByUri = {};
for (let i = 0; i < docs.length; i++) {
let recentInfo = docs[i];
if (!recentInfo.exists())
continue;
let docInfo = new DocInfo(recentInfo);
// we use GtkRecentInfo URI as an item Id
newItems[docInfo.uri] = docInfo;
this._infosByTimestamp.push(docInfo);
this._infosByUri[docInfo.uri] = docInfo;
}
let deleted = {};
for (var uri in this._items) {
if (!(uri in newItems))
deleted[uri] = this._items[uri];
}
/* If we'd cached any thumbnail references that no longer exist,
dump them here */
let texCache = Shell.TextureCache.get_default();
for (var uri in deleted) {
texCache.evict_recent_thumbnail(this._items[uri].recentInfo);
}
this._items = newItems;
this.emit('changed');
},
getItems: function() {
return this._items;
getTimestampOrderedInfos: function() {
return this._infosByTimestamp;
},
getInfosByUri: function() {
return this._infosByUri;
},
lookupByUri: function(uri) {
return this._infosByUri[uri];
},
queueExistenceCheck: function(count) {
return this._docSystem.queue_existence_check(count);
}
}

83
js/ui/docDisplay.js
View File

@ -152,7 +152,8 @@ DocDisplay.prototype = {
_refreshCache : function() {
if (!this._docsStale)
return true;
this._allItems = this._docManager.getItems();
this._allItems = {};
Lang.copyProperties(this._docManager.getInfosByUri(), this._allItems);
this._docsStale = false;
return false;
},
@ -275,16 +276,21 @@ DashDocDisplayItem.prototype = {
Main.overview.hide();
}));
this.actor._delegate = this;
this._icon = docInfo.createIcon(DASH_DOCS_ICON_SIZE);
let iconBox = new Big.Box({ y_align: Big.BoxAlignment.CENTER });
iconBox.append(this._icon, Big.BoxPackFlags.NONE);
this.actor.append(iconBox, Big.BoxPackFlags.NONE);
let name = new St.Label({ style_class: "dash-recent-docs-item",
let name = new St.Label({ style_class: 'dash-recent-docs-item',
text: docInfo.name });
this.actor.append(name, Big.BoxPackFlags.EXPAND);
let draggable = DND.makeDraggable(this.actor);
this.actor._delegate = this;
},
getUri: function() {
return this._info.uri;
},
getDragActorSource: function() {
@ -316,12 +322,14 @@ DashDocDisplay.prototype = {
this.actor.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
this.actor.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
this.actor.connect('allocate', Lang.bind(this, this._allocate));
this._workId = Main.initializeDeferredWork(this.actor, Lang.bind(this, this._redisplay));
this._actorsByUri = {};
this._docManager = DocInfo.getDocManager();
this._docManager.connect('changed', Lang.bind(this, function(mgr) {
this._redisplay();
}));
this._redisplay();
this._docManager.connect('changed', Lang.bind(this, this._onDocsChanged));
this._pendingDocsChange = true;
this._checkDocExistence = false;
},
_getPreferredWidth: function(actor, forHeight, alloc) {
@ -355,15 +363,17 @@ DashDocDisplay.prototype = {
let firstColumnChildren = Math.ceil(children.length / 2);
let natural = 0;
for (let i = 0; i < firstColumnChildren; i++) {
let child = children[i];
let [minSize, naturalSize] = child.get_preferred_height(forWidth);
alloc.natural_size += naturalSize;
let [minSize, naturalSize] = child.get_preferred_height(-1);
natural += naturalSize;
if (i > 0 && i < children.length - 1) {
alloc.natural_size += DEFAULT_SPACING;
natural += DEFAULT_SPACING;
}
}
alloc.natural_size = natural;
},
_allocate: function(actor, box, flags) {
@ -418,28 +428,49 @@ DashDocDisplay.prototype = {
i++;
}
// Everything else didn't fit, just hide it.
for (; i < children.length; i++) {
children[i].hide();
if (this._checkDocExistence) {
// Now we know how many docs we are displaying, queue a check to see if any of them
// have been deleted. If they are deleted, then we'll get a 'changed' signal; since
// we'll now be displaying items we weren't previously, we'll check again to see
// if they were deleted, and so forth and so on.
// TODO: We should change this to ask for as many as we can fit in the given space:
// https://bugzilla.gnome.org/show_bug.cgi?id=603522#c23
this._docManager.queueExistenceCheck(i);
this._checkDocExistence = false;
}
let skipPaint = [];
for (; i < children.length; i++)
this.actor.set_skip_paint(children[i], true);
},
_onDocsChanged: function() {
this._checkDocExistence = true;
Main.queueDeferredWork(this._workId);
},
_redisplay: function() {
// Should be kept alive by the _actorsByUri
this.actor.remove_all();
let docs = this._docManager.getItems();
let docUrls = [];
for (let url in docs) {
docUrls.push(url);
let docs = this._docManager.getTimestampOrderedInfos();
for (let i = 0; i < docs.length; i++) {
let doc = docs[i];
let display = this._actorsByUri[doc.uri];
if (display) {
this.actor.add_actor(display.actor);
} else {
let display = new DashDocDisplayItem(doc);
this.actor.add_actor(display.actor);
this._actorsByUri[doc.uri] = display;
}
}
docUrls.sort(function (urlA, urlB) { return docs[urlB].timestamp - docs[urlA].timestamp; });
let textureCache = Shell.TextureCache.get_default();
for (let i = 0; i < docUrls.length; i++) {
let url = docUrls[i];
let docInfo = docs[url];
let display = new DashDocDisplayItem(docInfo);
this.actor.add_actor(display.actor);
// Any unparented actors must have been deleted
for (let uri in this._actorsByUri) {
let display = this._actorsByUri[uri];
if (display.actor.get_parent() == null) {
display.actor.destroy();
delete this._actorsByUri[uri];
}
}
this.emit('changed');
}

3
js/ui/widget.js
View File

@ -354,8 +354,7 @@ RecentDocsWidget.prototype = {
for (i = 0; i < docs.length; i++) {
let docInfo = new DocInfo.DocInfo (docs[i]);
if (docInfo.exists())
items.push(docInfo);
items.push(docInfo);
}
items.sort(function (a,b) { return b.timestamp - a.timestamp; });