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keyboard: Add/handle "modifier" action keys

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These keys are handled so that the related modifier keyval (e.g. left
control) is toggled on, and flushed on the next non-modifier key
press submission.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2278>
This commit is contained in:
Carlos Garnacho 2022-04-16 13:06:09 +02:00 committed by Florian Müllner
parent 3b81e0f8eb
commit 2920738d23
1 changed files with 75 additions and 18 deletions
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75
js/ui/keyboard.js
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@ -24,6 +24,8 @@ const SHOW_KEYBOARD = 'screen-keyboard-enabled';
/* KeyContainer puts keys in a grid where a 1:1 key takes this size */
const KEY_SIZE = 2;
const KEY_RELEASE_TIMEOUT = 50;
var AspectContainer = GObject.registerClass(
class AspectContainer extends St.Widget {
_init(params) {
@ -274,6 +276,14 @@ var Key = GObject.registerClass({
this._capturedPress = false;
}
get iconName() {
return this._icon.icon_name;
}
set iconName(value) {
this._icon.icon_name = value;
}
_onDestroy() {
if (this._boxPointer) {
this._boxPointer.destroy();
@ -488,16 +498,10 @@ var Key = GObject.registerClass({
}
setLatched(latched) {
if (!this._icon)
return;
if (latched) {
if (latched)
this.keyButton.add_style_pseudo_class('latched');
this._icon.icon_name = 'keyboard-caps-lock-symbolic';
} else {
else
this.keyButton.remove_style_pseudo_class('latched');
this._icon.icon_name = 'keyboard-shift-symbolic';
}
}
});
@ -1280,6 +1284,8 @@ var Keyboard = GObject.registerClass({
this._focusWindowStartY = null;
this._latched = false; // current level is latched
this._modifiers = new Set();
this._modifierKeys = new Map();
this._suggestions = null;
this._emojiKeyVisible = Meta.is_wayland_compositor();
@ -1488,18 +1494,28 @@ var Keyboard = GObject.registerClass({
if (key.width !== null)
button.setWidth(key.width);
if (key.action !== 'modifier') {
button.connect('commit', (actor, keyval, str) => {
if (str === '' || !Main.inputMethod.currentFocus ||
this._modifiers.size > 0 ||
!this._keyboardController.commitString(str, true)) {
if (keyval != 0) {
if (keyval !== 0) {
this._forwardModifiers(this._modifiers, Clutter.EventType.KEY_PRESS);
this._keyboardController.keyvalPress(keyval);
GLib.timeout_add(GLib.PRIORITY_DEFAULT, KEY_RELEASE_TIMEOUT, () => {
this._keyboardController.keyvalRelease(keyval);
this._forwardModifiers(this._modifiers, Clutter.EventType.KEY_RELEASE);
this._disableAllModifiers();
return GLib.SOURCE_REMOVE;
});
}
}
if (!this._latched)
this._setActiveLayer(0);
});
}
if (key.action !== null) {
button.connect('released', () => {
if (key.action === 'hide') {
@ -1508,6 +1524,8 @@ var Keyboard = GObject.registerClass({
this._popupLanguageMenu(button);
} else if (key.action === 'emoji') {
this._toggleEmoji();
} else if (key.action === 'modifier') {
this._toggleModifier(key.keyval);
} else if (!this._longPressed && key.action === 'levelSwitch') {
this._setActiveLayer(key.level);
this._setLatched(
@ -1531,6 +1549,12 @@ var Keyboard = GObject.registerClass({
}
}
if (key.action === 'modifier') {
let modifierKeys = this._modifierKeys[key.keyval] || [];
modifierKeys.push(button);
this._modifierKeys[key.keyval] = modifierKeys;
}
if (key.action || key.keyval)
button.keyButton.add_style_class_name('default-key');
@ -1543,6 +1567,35 @@ var Keyboard = GObject.registerClass({
this._setCurrentLevelLatched(this._currentPage, this._latched);
}
_setModifierEnabled(keyval, enabled) {
if (enabled)
this._modifiers.add(keyval);
else
this._modifiers.delete(keyval);
for (const key of this._modifierKeys[keyval])
key.setLatched(enabled);
}
_toggleModifier(keyval) {
const isActive = this._modifiers.has(keyval);
this._setModifierEnabled(keyval, !isActive);
}
_forwardModifiers(modifiers, type) {
for (const keyval of modifiers) {
if (type === Clutter.EventType.KEY_PRESS)
this._keyboardController.keyvalPress(keyval);
else if (type === Clutter.EventType.KEY_RELEASE)
this._keyboardController.keyvalRelease(keyval);
}
}
_disableAllModifiers() {
for (const keyval of this._modifiers)
this._setModifierEnabled(keyval, false);
}
_popupLanguageMenu(keyActor) {
if (this._languagePopup)
this._languagePopup.destroy();
@ -1571,6 +1624,8 @@ var Keyboard = GObject.registerClass({
for (let i = 0; i < layout.shiftKeys.length; i++) {
let key = layout.shiftKeys[i];
key.setLatched(latched);
key.iconName = latched
? 'keyboard-caps-lock-symbolic' : 'keyboard-shift-symbolic';
}
}
@ -1688,6 +1743,7 @@ var Keyboard = GObject.registerClass({
delete this._currentPage._destroyID;
}
this._disableAllModifiers();
this._currentPage = currentPage;
this._currentPage._destroyID = this._currentPage.connect('destroy', () => {
this._currentPage = null;
@ -1768,6 +1824,7 @@ var Keyboard = GObject.registerClass({
this._animateHide();
this.setCursorLocation(null);
this._disableAllModifiers();
}
_animateShow() {