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overview: highlight windows on launcher hover

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When in the overview, if you move the mouse cursor over one of the
application launchers in the dash, all the unrelated windows are dimmed
both both in the window view and in the workspace view.

It helps to easily understand whether or not there are already opened
windows for this application, and where they are. It can also help in
differentiating the windows in the overview (sometimes the thumbnails
aren't precise enough to easily know which thumbnail belongs to which
application).

https://bugzilla.gnome.org/show_bug.cgi?id=657315
This commit is contained in:
Stéphane Démurget
2012-11-03 22:18:42 +01:00
parent 95abdeb919
commit 76229a3601
4 changed files with 170 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
js/ui/workspaceThumbnail.js
View File

@ -20,6 +20,9 @@ let MAX_THUMBNAIL_SCALE = 1/8.;
const RESCALE_ANIMATION_TIME = 0.2;
const SLIDE_ANIMATION_TIME = 0.2;
// the window opacity is very low as windows can be layered, contrary to the view selector
const DIMMED_WINDOW_OPACITY = 50;
// When we create workspaces by dragging, we add a "cut" into the top and
// bottom of each workspace so that the user doesn't have to hit the
// placeholder exactly.
@ -58,6 +61,16 @@ const WindowClone = new Lang.Class({
this.inDrag = false;
},
setDimmed: function(dimmed, withAnimation) {
let opacity = dimmed ? DIMMED_WINDOW_OPACITY : 255;
let time = dimmed ? Workspace.DIMMED_WINDOW_FADE_IN_TIME : Workspace.DIMMED_WINDOW_FADE_OUT_TIME;
Tweener.addTween(this.actor,
{ opacity: opacity,
time: withAnimation ? time : 0,
transition: 'easeOutQuad' });
},
setStackAbove: function (actor) {
this._stackAbove = actor;
if (this._stackAbove == null)
@ -192,6 +205,9 @@ const WorkspaceThumbnail = new Lang.Class({
}
}
this._hoveredAppChangedId = Main.overview.connect('hovered-app-changed',
Lang.bind(this, this._hoveredAppChanged));
// Track window changes
this._windowAddedId = this.metaWorkspace.connect('window-added',
Lang.bind(this, this._windowAdded));
@ -312,6 +328,8 @@ const WorkspaceThumbnail = new Lang.Class({
return;
let clone = this._addWindowClone(win);
this._updateCloneDimmed(clone, Main.overview.hoveredApp, Main.overview.primaryAction, false);
},
_windowAdded : function(metaWorkspace, metaWin) {
@ -368,6 +386,8 @@ const WorkspaceThumbnail = new Lang.Class({
},
_onDestroy: function(actor) {
Main.overview.disconnect(this._hoveredAppChangedId);
this.workspaceRemoved();
this._windows = [];
@ -435,6 +455,23 @@ const WorkspaceThumbnail = new Lang.Class({
this.metaWorkspace.activate(time);
},
_hoveredAppChanged: function(overview, hoveredApp, primaryAction) {
for (let i = 0; i < this._windows.length; i++) {
this._updateCloneDimmed(this._windows[i], hoveredApp, primaryAction, true);
}
},
_updateCloneDimmed: function(clone, hoveredApp, primaryAction, withAnimation) {
let app = Shell.WindowTracker.get_default().get_window_app(clone.metaWindow);
let dimmed = (hoveredApp != null && app != hoveredApp);
if (primaryAction)
dimmed = dimmed && (hoveredApp.state != Shell.AppState.STOPPED);
clone.setDimmed(dimmed, withAnimation);
},
// Draggable target interface used only by ThumbnailsBox
handleDragOverInternal : function(source, time) {
if (source == Main.xdndHandler) {