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keyboard: Add support for setting OSK keys with icons

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Unused at the moment, but add the plumbing so that default key
definitions may specify symbolic icons that will be shown instead
of the text.

This is intended to replace the use of CSS and background-image
to handle those buttons with an icon.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2214
This commit is contained in:
Carlos Garnacho 2020-02-14 18:09:32 +01:00 committed by Florian Müllner
parent 9ab0071aa5
commit 5171bdd45f
1 changed files with 22 additions and 8 deletions
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30
js/ui/keyboard.js
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@ -257,11 +257,11 @@ var Key = GObject.registerClass({
'released': { param_types: [GObject.TYPE_UINT, GObject.TYPE_STRING] },
},
}, class Key extends St.BoxLayout {
_init(key, extendedKeys) {
_init(key, extendedKeys, icon = null) {
super._init({ style_class: 'key-container' });
this.key = key || "";
this.keyButton = this._makeKey(this.key);
this.keyButton = this._makeKey(this.key, icon);
/* Add the key in a container, so keys can be padded without losing
* logical proportions between those.
@ -404,14 +404,21 @@ var Key = GObject.registerClass({
this._capturedPress = false;
}
_makeKey(key) {
let label = GLib.markup_escape_text(key, -1);
_makeKey(key, icon) {
let button = new St.Button({
label,
style_class: 'keyboard-key',
x_expand: true,
});
if (icon) {
let child = new St.Icon({ icon_name: icon });
button.set_child(child);
this._icon = child;
} else {
let label = GLib.markup_escape_text(key, -1);
button.set_label(label);
}
button.keyWidth = 1;
button.connect('button-press-event', () => {
this._press(key);
@ -475,10 +482,16 @@ var Key = GObject.registerClass({
}
setLatched(latched) {
if (latched)
if (!this._icon)
return;
if (latched) {
this.keyButton.add_style_pseudo_class('latched');
else
this._icon.icon_name = 'keyboard-caps-lock-filled-symbolic';
} else {
this.keyButton.remove_style_pseudo_class('latched');
this._icon.icon_name = 'keyboard-shift-filled-symbolic';
}
}
});
@ -1435,12 +1448,13 @@ class Keyboard extends St.BoxLayout {
let keyval = key.keyval;
let switchToLevel = key.level;
let action = key.action;
let icon = key.icon;
/* Skip emoji button if necessary */
if (!this._emojiKeyVisible && action == 'emoji')
continue;
extraButton = new Key(key.label || '', []);
extraButton = new Key(key.label || '', [], icon);
extraButton.keyButton.add_style_class_name('default-key');
if (key.extraClassName != null)