Commit Graph

58 Commits

Author SHA1 Message Date
Daniel van Vugt
9f76b6e4a2 magnifier.js: Fix zoom juddering
Make Zoom respond to the mouse silky-smoothly.

It was previously hard-coded to: 1000/50 = 20 FPS.

https://bugzilla.gnome.org/show_bug.cgi?id=682013
https://launchpad.net/bugs/1691675


(cherry picked from commit 94101e8bb8)
2018-06-07 08:42:32 +00:00
Florian Müllner
3b1330880f cleanup: Use Function.prototype.bind()
When not using arrow notation with anonymous functions, we use Lang.bind()
to bind `this` to named callbacks. However since ES5, this functionality
is already provided by Function.prototype.bind() - in fact, Lang.bind()
itself uses it when no extra arguments are specified. Just use the built-in
function directly where possible, and use arrow notation in the few places
where we pass additional arguments.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:55:02 +00:00
Florian Müllner
213e38c2ef cleanup: Use arrow notation for anonymous functions
Arrow notation is great, use it consistently through-out the code base
to bind `this` to anonymous functions, replacing the more overbose
Lang.bind(this, function() {}).

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:55:00 +00:00
Florian Müllner
76f09b1e49 cleanup: Use method syntax
Modern javascript has a short-hand for function properties, embrace
it for better readability and to prepare for an eventual port to
ES6 classes.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:54:58 +00:00
Florian Müllner
033277b68f Define externally accessible contants with 'var' instead of 'const'
Just as we did with classes, define other constants that are (or
may be) used from other modules with 'var' to cut down on warnings.

https://bugzilla.gnome.org/show_bug.cgi?id=785084
2017-07-18 21:52:06 +02:00
Florian Müllner
2582d16ca7 Define classes with 'var' instead of 'const'
Any symbols (including class properties) that should be visible
outside the module it's defined in need to be defined as global.
For now gjs still allows the access for 'const', but get rid of
the warnings spill now by changing it.

https://bugzilla.gnome.org/show_bug.cgi?id=785084
2017-07-18 21:52:06 +02:00
Rui Matos
f5865e895e magnifier: Avoid caret/focus viewport changes while the pointer moves
If there's a caret or focus move we should delay it until the pointer
is stationary for a little while so as to avoid jittery and spurious
viewport movements.

https://bugzilla.gnome.org/show_bug.cgi?id=752138
2015-07-27 18:04:44 +02:00
Giovanni Campagna
bbe417121c Magnifier: invert connection to settings changes and initial read
If there is no signal connected to changed for a key, get_value()
will not subscribe to changes.

https://bugzilla.gnome.org/show_bug.cgi?id=746509
2015-03-27 13:11:22 -07:00
Owen W. Taylor
2f5a226bc2 Fix handling of SystemBackground
Since the background rework, SystemBackground is no longer a transparent
actor that you have to stack on top of a solid background, it is an
opaque actor. Fix the color of the background actor, and remove places
where we were setting the background color underneath the system background
and expecting blending - in particular, we can always set no_clear_hint
on the stage.

https://bugzilla.gnome.org/show_bug.cgi?id=738652
2014-10-16 17:16:06 -04:00
Jasper St. Pierre
83cb26d70e js: Adapt to GSettings API change
The 'schema' property has been deprecated for a long time. Even though
this will likely be reverted in glib, let's stop using it.
2014-06-24 15:17:09 -04:00
Giovanni Campagna
793c6c2f7b Magnifier: clip the UI group clone to the allocation
Without clipping, we show parts of the message tray and workspace
thumbnails that are normally clipped by the screen.

https://bugzilla.gnome.org/show_bug.cgi?id=724305
2014-02-13 19:43:44 +01:00
Giovanni Campagna
f8f4d0f646 Magnifier: use the system noise texture for the dead area
The design says that the noise texture is the implicit bottom
layer, and so it's appropriate to use it togheter with the default
color to cover the dead area outside the screen which becomes
visibile when scrolling.

https://bugzilla.gnome.org/show_bug.cgi?id=724305
2014-02-13 19:43:44 +01:00
Giovanni Campagna
3a92aa751f Magnifier: don't listen for focus/tracker events if the magnifier is not active
In addition to checking the current settings, check also if the
zoom region is active before registering the event listener.
This way, we avoid DBus traffic for events we're not interested in.

Also, make FocusCaretTracker resilient to multiple register/deregister
calls (which can now happen).

https://bugzilla.gnome.org/show_bug.cgi?id=724305
2014-02-13 19:43:41 +01:00
Giovanni Campagna
6882273aa0 Magnifier: demote exceptions reading focus/caret position
It's possible that the DBus call goes in timeout (which is bad,
but unavoidable, given that atspi is synchronous) or fails
because the component has been removed (race condition). Those
errors are not dependent on gnome-shell, but on faulty applications
(mostly).
If they happen, log a debug message and continue.

https://bugzilla.gnome.org/show_bug.cgi?id=724305
2014-02-13 19:31:00 +01:00
Giovanni Campagna
3b0197620f Magnifier: fix a warning when calling setActive() with the same value
We must not call enable/disable_unredirect if we didn't change the
active value, otherwise mutter gets confused and emits warnings.

https://bugzilla.gnome.org/show_bug.cgi?id=724293
2014-02-13 19:31:00 +01:00
Magdalen Berns
8d8d1cfdd6 Magnifier: Restore crosshairs
This patch is to restore broken crosshairs so they may be used
once more

https://bugzilla.gnome.org/show_bug.cgi?id=723709
	magnifier.js
2014-02-08 23:47:40 +00:00
Magdalen Berns
583d2cb4e4 Magnifier: take x,y from center of focused widget
bug https://bugzilla.gnome.org/show_bug.cgi?id=720951
2014-02-05 18:21:42 +00:00
Magdalen Berns
0db3605f33 Magnifier: Disable unredirect when active
The unredirect feature does not apply to the magnifier and it
prevents users from gaming whilst it is on so disable when magnifier
is active and allow magnifier users to game!

Bug https://bugzilla.gnome.org/show_bug.cgi?id=708985
2014-02-04 16:58:25 +01:00
Giovanni Campagna
193f872ebe Magnifier: don't initialize if we don't need it
Let's avoid initializing AT-SPI and start monitoring events if we
are not actually using the magnifier.

https://bugzilla.gnome.org/show_bug.cgi?id=708020
2013-09-13 16:09:33 +02:00
Giovanni Campagna
c58448817b ShellGlobal: use MetaCursorTracker to query the pointer position
Gdk uses Xwayland, so it only sees the events we forward to X11
clients. Instead, we can use the abstraction API provided by
mutter and get the right value automatically.
Also, we need to use MetaCursorTracker to handle the cursor
visibility too.

https://bugzilla.gnome.org/show_bug.cgi?id=707467
2013-09-12 10:34:25 +02:00
Magdalen Berns
c9d6b13f6a Remove unused functions
Bug https://bugzilla.gnome.org/show_bug.cgi?id=707666
2013-09-07 15:05:59 +02:00
Magdalen Berns
9d8f30f955 Magnifier: Implement focus and caret tracking
A11y users who use the magnifier may have trouble
focusing when they're typing or trying to keynav.
Implement a new system so that they can have the
magnifier track the caret and focus instead instead
of just the mouse.

Bug https://bugzilla.gnome.org/show_bug.cgi?id=647074
2013-09-05 13:18:54 -04:00
Giovanni Campagna
2b8414a453 Replace ShellXFixesCursor with MetaCursorTracker
Mutter now includes an object with the same purpose and functionality
as ShellXFixesCursor, so we can replace our XFixes code with it
and work under wayland too.

https://bugzilla.gnome.org/show_bug.cgi?id=705911
2013-08-19 16:14:12 +02:00
Jasper St. Pierre
c815979f2a magnifier: Don't use some deprecated APIs
Stop using Clutter.Group and Clutter.Rectangle.

https://bugzilla.gnome.org/show_bug.cgi?id=683073
2012-08-31 16:43:52 -03:00
Jasper St. Pierre
54e5ffcac1 magnifier: Don't set the size of the uiGroup
The magnifier shouldn't mess with global properties like this.

https://bugzilla.gnome.org/show_bug.cgi?id=683073
2012-08-31 16:43:51 -03:00
Jasper St. Pierre
3fd0502cb9 magnifier: Round the uiGroup to integer positions
This removes the jaggies from text, and other sorts of things.

https://bugzilla.gnome.org/show_bug.cgi?id=683073
2012-08-31 16:43:51 -03:00
Jasper St. Pierre
8aed51180f magnifier: Use PointerWatcher to poll the mouse pointer
This gives us a more efficient method to watch the mouse pointer.

https://bugzilla.gnome.org/show_bug.cgi?id=683073
2012-08-31 16:43:51 -03:00
Jasper St. Pierre
e616877fd2 js: Fix up for Clutter.Color changes
Spotted by darkxst on IRC.

https://bugzilla.gnome.org/show_bug.cgi?id=683073
2012-08-31 16:43:51 -03:00
Alejandro Piñeiro
7431c4d611 magnifier: Using properly 'color-saturation'
As description of the setting says, color-saturation ranges from
0.0 (grayscale) to 1.0 (full color), but the real outcome was the
opposite. The reason is that clutter provides a desaturation effect,
and color-saturation was passed directly to that effect. This patch
renames the effect and compute the desaturation value.
2012-08-06 13:02:42 +02:00
Alejandro Piñeiro
ec78dd60fc magnifier: 'color-saturation' is a double not a boolean 2012-08-06 13:02:42 +02:00
Florian Müllner
b7018de7e0 magnifier: Fix grayscale effect
Commit 8754b2767c added a grayscale effect to the magnifier,
but missed actually adding it to the actor.

https://bugzilla.gnome.org/show_bug.cgi?id=674499
2012-07-14 00:46:32 +02:00
Cosimo Cecchi
6658660355 magnifier: fix a copy/paste typo
Introduced in 8754b2767c
2012-07-09 18:12:38 -04:00
Jasper St. Pierre
8754b2767c Add a grayscale effect
This commit adds a grayscale effect to the magnifier, similar to
the lightness, brightness and contrast effects that are already there.

The effect is configured with the
org.gnome.desktop.a11y.magnifier.color-saturation setting, which
can take values from 0.0 (grayscale) to 1.0 (full color).

Based on a patch by Matthias Clasen <mclasen@redhat.com>

https://bugzilla.gnome.org/show_bug.cgi?id=676782
2012-07-06 15:18:01 -04:00
Joseph Scheuhammer
61a17d7fab Magnifier: Add brightness and contrast functionality
Added clutter effects class that does lightness inversion.
Modified the magnifier to use this inversion effect.

https://bugzilla.gnome.org/show_bug.cgi?id=639851
2012-05-16 18:59:33 -04:00
Joseph Scheuhammer
865cfa5211 Magnifier: Add brightness and contrast functionality
Modified the magnifier to use the CluttterBrightnessContrastEffect
for changing overall brightness and/or contrast of a ZoomRegion.

https://bugzilla.gnome.org/show_bug.cgi?id=639851
2012-05-16 18:59:32 -04:00
Jasper St. Pierre
723a1c843a Refactor show()/hide() sequences
We seem to have a lot of code that does something along the lines of:

    if (condition)
        actor.show();
    else
        actor.hide();

ClutterActor already has such a thing for exactly this purpose: the 'visible'
property. Use it instead of the mess above.

https://bugzilla.gnome.org/show_bug.cgi?id=672272
2012-05-02 12:43:58 -04:00
Rui Matos
5a85fc0e55 magnifier: Handle screen size changes
Update everything that depends on the screen size whenever it changes.

https://bugzilla.gnome.org/show_bug.cgi?id=667860
2012-01-26 15:14:48 +00:00
Jasper St. Pierre
faff0738eb Do not use the default stage
https://bugzilla.gnome.org/show_bug.cgi?id=664052
2011-12-15 16:13:29 -05:00
Giovanni Campagna
17c46c2452 Port everything to class framework
The last patch in the sequence. Every place that was previously
setting prototype has been ported to Lang.Class, to make code more
concise and allow for better toString().

https://bugzilla.gnome.org/show_bug.cgi?id=664436
2011-11-24 09:50:04 +01:00
Florian Müllner
be1c4f26b5 magnifier: Use enum from gsettings-desktop-schemas
gsettings-desktop-schemas installs a public header file for enum
types in schemas - use those instead of mirroring the types in JS.

https://bugzilla.gnome.org/show_bug.cgi?id=662238
2011-11-04 23:28:53 +01:00
Dan Winship
75b824d032 *.js: Make emacs modelines consistent
js2-mode is no longer developed and we recommend js-mode these days,
so switch the modelines to specify that, and make them consistent
across all files.

https://bugzilla.gnome.org/show_bug.cgi?id=660358
2011-10-11 08:05:12 -04:00
Florian Müllner
3631983de5 magnifier: Adjust for removal of 'show-magnifier' key
gsettings-desktop-schemas had two conflicting settings for showing
the magnifier: 'show-magnifier' in org.gnome.desktop.a11y.magnifier
and 'screen-magnifier-enabled' in org.gnome.desktop.a11y.applications.
The former has been removed in favor of the latter, so adjust to this
change.
2011-02-17 16:09:07 +01:00
Bastien Nocera
4c2d9ca16e magnifier: crosshairs opacity is now a double
The type of the opacity has been changed in
gsettings-desktop-schemas, and a range was added for it.

See also bug 642032

https://bugzilla.gnome.org/show_bug.cgi?id=642175
2011-02-13 02:23:53 +00:00
Thomas Wood
cd56de85d0 Move magnifier schemas to gsettings-desktop-schemas
Move the magnifier schemas to gsettings-desktop-schemas to allow them to be
shared between gnome-shell and other applications.

https://bugzilla.gnome.org/show_bug.cgi?id=642034
2011-02-11 16:52:45 +00:00
Florian Müllner
35b5cb9860 magnifier: Fix DND when the magnifier is active
Hide the zoom regions from pick so that they do not interfere with
the picking done by DND in search for _delegate objects.

https://bugzilla.gnome.org/show_bug.cgi?id=634560
2010-12-03 20:38:25 +01:00
Owen W. Taylor
978cf9d3ab Fix redundant calls to global.get_pointer()
Since we are keeping a current pointer position anyways, we
don't have to continually call global.get_pointer() which is
a round trip to the magnifier; make ZoomRegion simply fetch
a current position stored in the Magnifier object.

https://bugzilla.gnome.org/show_bug.cgi?id=633553
2010-12-03 14:21:57 -05:00
Owen W. Taylor
96fb6d8f16 Improve the algorithm for proportional mouse tracking
Change the proportional algorithm so stop moving the zoom region
when cursor is in a "padding region" at the edge of the screen.
(The padding region is a 10th of the screen at 2x zoom, and smaller
for higher zooms.)

Based on earlier versions from Jon McCann and Florian Muellner.

https://bugzilla.gnome.org/show_bug.cgi?id=629950
2010-12-03 14:21:57 -05:00
Owen W. Taylor
c5c66ceb98 Refactor Magnifier.ZoomRegion to avoid permanent Clutter.Clone
This basic point of this change is to avoid always creating a
hidden Clutter.Clone actor for the default present-but-not-active
zoom region. The position of the viewport and region of interest
are now stored in member variables, and the actors are only created
and updated when the region is active.

Other significant changes:

 * Unused public functions are removed or made private
 * The mouse tracking position is immediately  updated when options
   like the zoom are changed, not just on the next mouse motion.
 * ZoomRegion.setROI() now updates the zoom, not just the position;
   a FIXME is added to the D-Bus interface for a place where the
   D-Bus interface contains duplicate possibly conflicting information
 * Lens-mode is now only effectively off when the magnifier is
   fullscreen, instead of actually modifying the member variable;
   this makes things work properly when changing out of full-screen
   mode.
 * When the clamping to screen edges is turned on, we now immediately
   clamp.
 * The handling of setting the position to fullscreen as compared
   to just setting the viewport to fullscreen is untangled.

https://bugzilla.gnome.org/show_bug.cgi?id=633582
2010-12-03 14:21:57 -05:00
Florian Müllner
0c2aa1437d magnifier: Sync MouseTrackingMode values with the gsettings enum
The tracking modes "push" and "proportional" are swapped.

https://bugzilla.gnome.org/show_bug.cgi?id=629884
2010-11-01 16:03:28 +01:00
Giovanni Campagna
6ea18136ac Add Universal Access status indicator
Introduce the Universal Access status indicator as designed, modeled
after the similar UI provided by g-s-d. This indicator allows the user
to change rapidly the keyboard and mouse behaviour (sticky keys, slow
keys, bounce keys, mouse keys), as well as the enabled ATs (magnifier,
screen reader, screen keyboard) and the HighContrast Gtk theme.

https://bugzilla.gnome.org/show_bug.cgi?id=624916
2010-09-16 15:03:26 -04:00