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dash: Reimplement the dash based on AppWell code

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The new dash implementation is a single-column vertical sidebar,
whose items are scaled dynamically to fit the available height.
If the height is still exceeded after scaling down to a minimum
item size, excess items are cut off.
The now unused old dash implementation is renamed to OldDash, as
its code will be used as a base for the new view selector element.

https://bugzilla.gnome.org/show_bug.cgi?id=634948
This commit is contained in:
Florian Müllner
2010-07-22 01:29:02 +02:00
parent 2d2ac5b3f6
commit 3e4f744e56
6 changed files with 279 additions and 161 deletions
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163
js/ui/dash.js
View File

@ -4,11 +4,13 @@ const Clutter = imports.gi.Clutter;
const Mainloop = imports.mainloop;
const Signals = imports.signals;
const Lang = imports.lang;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
const Gettext = imports.gettext.domain('gnome-shell');
const _ = Gettext.gettext;
const AppDisplay = imports.ui.appDisplay;
const AppFavorites = imports.ui.appFavorites;
const DND = imports.ui.dnd;
const DocDisplay = imports.ui.docDisplay;
const PlaceDisplay = imports.ui.placeDisplay;
@ -16,6 +18,7 @@ const Main = imports.ui.main;
const Overview = imports.ui.overview;
const Search = imports.ui.search;
const Tweener = imports.ui.tweener;
const Workspace = imports.ui.workspace;
// 25 search results (per result type) should be enough for everyone
const MAX_RENDERED_SEARCH_RESULTS = 25;
@ -689,11 +692,11 @@ Section.prototype = {
}
};
function Dash() {
function OldDash() {
this._init();
}
Dash.prototype = {
OldDash.prototype = {
_init : function() {
// dash and the popup panes need to be reactive so that the clicks in unoccupied places on them
// are not passed to the transparent background underneath them. This background is used for the workspaces area when
@ -911,3 +914,159 @@ Dash.prototype = {
}
};
Signals.addSignalMethods(Dash.prototype);
function Dash() {
this._init();
}
Dash.prototype = {
_init : function() {
this._menus = [];
this._menuDisplays = [];
this._maxHeight = -1;
this._favorites = [];
this._box = new St.BoxLayout({ name: 'dash',
vertical: true,
clip_to_allocation: true });
this._box._delegate = this;
this.actor = new St.Bin({ y_align: St.Align.START, child: this._box });
this.actor.connect('notify::height', Lang.bind(this,
function() {
if (this._maxHeight != this.actor.height)
this._queueRedisplay();
this._maxHeight = this.actor.height;
}));
this._workId = Main.initializeDeferredWork(this._box, Lang.bind(this, this._redisplay));
this._tracker = Shell.WindowTracker.get_default();
this._appSystem = Shell.AppSystem.get_default();
this._appSystem.connect('installed-changed', Lang.bind(this, this._queueRedisplay));
AppFavorites.getAppFavorites().connect('changed', Lang.bind(this, this._queueRedisplay));
this._tracker.connect('app-state-changed', Lang.bind(this, this._queueRedisplay));
},
_appIdListToHash: function(apps) {
let ids = {};
for (let i = 0; i < apps.length; i++)
ids[apps[i].get_id()] = apps[i];
return ids;
},
_queueRedisplay: function () {
Main.queueDeferredWork(this._workId);
},
_redisplay: function () {
this._box.hide();
this._box.remove_all();
let favorites = AppFavorites.getAppFavorites().getFavoriteMap();
/* hardcode here pending some design about how exactly desktop contexts behave */
let contextId = '';
let running = this._tracker.get_running_apps(contextId);
for (let id in favorites) {
let app = favorites[id];
let display = new AppDisplay.AppWellIcon(app);
this._box.add(display.actor);
}
for (let i = 0; i < running.length; i++) {
let app = running[i];
if (app.get_id() in favorites)
continue;
let display = new AppDisplay.AppWellIcon(app);
this._box.add(display.actor);
}
let children = this._box.get_children();
if (children.length == 0) {
this._box.add_style_pseudo_class('empty');
} else {
this._box.remove_style_pseudo_class('empty');
if (this._maxHeight > -1) {
let iconSizes = [ 48, 32, 24, 22, 16 ];
for (let i = 0; i < iconSizes.length; i++) {
let minHeight, natHeight;
this._iconSize = iconSizes[i];
for (let j = 0; j < children.length; j++)
children[j]._delegate.icon.setIconSize(this._iconSize);
[minHeight, natHeight] = this.actor.get_preferred_height(-1);
if (natHeight <= this._maxHeight)
break;
}
}
}
this._box.show();
},
handleDragOver : function(source, actor, x, y, time) {
let app = null;
if (source instanceof AppDisplay.AppWellIcon)
app = this._appSystem.get_app(source.getId());
else if (source instanceof Workspace.WindowClone)
app = this._tracker.get_window_app(source.metaWindow);
// Don't allow favoriting of transient apps
if (app == null || app.is_transient())
return DND.DragMotionResult.NO_DROP;
let id = app.get_id();
let favorites = AppFavorites.getAppFavorites().getFavoriteMap();
let srcIsFavorite = (id in favorites);
if (srcIsFavorite)
return DND.DragMotionResult.NO_DROP;
return DND.DragMotionResult.COPY_DROP;
},
// Draggable target interface
acceptDrop : function(source, actor, x, y, time) {
let app = null;
if (source instanceof AppDisplay.AppWellIcon) {
app = this._appSystem.get_app(source.getId());
} else if (source instanceof Workspace.WindowClone) {
app = this._tracker.get_window_app(source.metaWindow);
}
// Don't allow favoriting of transient apps
if (app == null || app.is_transient()) {
return false;
}
let id = app.get_id();
let favorites = AppFavorites.getAppFavorites().getFavoriteMap();
let srcIsFavorite = (id in favorites);
if (srcIsFavorite) {
return false;
} else {
Mainloop.idle_add(Lang.bind(this, function () {
AppFavorites.getAppFavorites().addFavorite(id);
return false;
}));
}
return true;
}
};
Signals.addSignalMethods(Dash.prototype);