[gnome-shell/wip/carlosg/grabs-pt2: 25/25] js: Change main.pushModal to return the Clutter.Grab handle
- From: Carlos Garnacho <carlosg src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-shell/wip/carlosg/grabs-pt2: 25/25] js: Change main.pushModal to return the Clutter.Grab handle
- Date: Tue, 25 Jan 2022 17:24:36 +0000 (UTC)
commit 996238951a65ea94e6af29051e7b704510d74c75
Author: Carlos Garnacho <carlosg gnome org>
Date: Thu Nov 25 10:49:42 2021 +0100
js: Change main.pushModal to return the Clutter.Grab handle
All callers have been updated to keep this handle to identify their
own grab.
Also, optionally use the windowing state to determine whether
the grab is suitable for the specific uses. This removes the need
to trying to grab twice in the places where we settle for a keyboard
grab.
js/gdm/loginDialog.js | 5 +++--
js/ui/dnd.js | 17 ++++++++++-------
js/ui/grabHelper.js | 9 +++++++--
js/ui/lookingGlass.js | 9 +++++++--
js/ui/main.js | 22 ++++++++++------------
js/ui/modalDialog.js | 9 +++++++--
js/ui/overview.js | 8 ++++++--
js/ui/padOsd.js | 5 +++--
js/ui/popupMenu.js | 11 +++++++----
js/ui/screenShield.js | 16 +++++++++-------
js/ui/switcherPopup.js | 15 +++++++++------
js/ui/unlockDialog.js | 9 +++++++--
12 files changed, 85 insertions(+), 50 deletions(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 6c5018006e..3294d65566 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -1289,7 +1289,7 @@ var LoginDialog = GObject.registerClass({
this.opacity = 0;
- Main.pushModal(global.stage, { actionMode: Shell.ActionMode.LOGIN_SCREEN });
+ this._grab = Main.pushModal(global.stage, { actionMode: Shell.ActionMode.LOGIN_SCREEN });
this.ease({
opacity: 255,
@@ -1301,7 +1301,8 @@ var LoginDialog = GObject.registerClass({
}
close() {
- Main.popModal(global.stage);
+ Main.popModal(this._grab);
+ this._grab = null;
Main.ctrlAltTabManager.removeGroup(this);
}
diff --git a/js/ui/dnd.js b/js/ui/dnd.js
index f6324f14e0..d6a1f07c82 100644
--- a/js/ui/dnd.js
+++ b/js/ui/dnd.js
@@ -117,7 +117,6 @@ var _Draggable = class _Draggable {
this._animationInProgress = false; // The drag is over and the item is in the process of animating
to its original position (snapping back or reverting).
this._dragCancellable = true;
- this._eventsGrabbed = false;
this._capturedEventId = 0;
}
@@ -208,18 +207,22 @@ var _Draggable = class _Draggable {
}
_grabEvents(device, touchSequence) {
- if (!this._eventsGrabbed) {
- this._eventsGrabbed = Main.pushModal(_getEventHandlerActor());
- if (this._eventsGrabbed)
+ if (!this._eventsGrab) {
+ let grab = Main.pushModal(_getEventHandlerActor());
+ if ((grab.get_seat_state() & Clutter.GrabState.POINTER) !== 0) {
this._grabDevice(_getEventHandlerActor(), device, touchSequence);
+ this._eventsGrab = grab;
+ } else {
+ Main.popModal(grab);
+ }
}
}
_ungrabEvents() {
- if (this._eventsGrabbed) {
+ if (this._eventsGrab) {
this._ungrabDevice();
- Main.popModal(_getEventHandlerActor());
- this._eventsGrabbed = false;
+ Main.popModal(this._eventsGrab);
+ this._eventsGrab = null;
}
}
diff --git a/js/ui/grabHelper.js b/js/ui/grabHelper.js
index 89e1bee321..47a332a246 100644
--- a/js/ui/grabHelper.js
+++ b/js/ui/grabHelper.js
@@ -181,9 +181,13 @@ var GrabHelper = class GrabHelper {
_takeModalGrab() {
let firstGrab = this._modalCount == 0;
if (firstGrab) {
- if (!Main.pushModal(this._owner, this._modalParams))
+ let grab = Main.pushModal(this._owner, this._modalParams);
+ if (grab.get_seat_state() === Clutter.GrabState.NONE) {
+ Main.popModal(grab);
return false;
+ }
+ this._grab = grab;
this._capturedEventId = this._owner.connect('captured-event',
(actor, event) => {
return this.onCapturedEvent(event);
@@ -202,7 +206,8 @@ var GrabHelper = class GrabHelper {
this._owner.disconnect(this._capturedEventId);
this._ignoreUntilRelease = false;
- Main.popModal(this._owner);
+ Main.popModal(this._grab);
+ this._grab = null;
}
// ignoreRelease:
diff --git a/js/ui/lookingGlass.js b/js/ui/lookingGlass.js
index 93d08f3fa8..ed217a4dbb 100644
--- a/js/ui/lookingGlass.js
+++ b/js/ui/lookingGlass.js
@@ -1560,9 +1560,13 @@ class LookingGlass extends St.BoxLayout {
if (this._open)
return;
- if (!Main.pushModal(this, { actionMode: Shell.ActionMode.LOOKING_GLASS }))
+ let grab = Main.pushModal(this, { actionMode: Shell.ActionMode.LOOKING_GLASS });
+ if (grab.get_seat_state() === Clutter.GrabState.NONE) {
+ Main.popModal(grab);
return;
+ }
+ this._grab = grab;
this._notebook.selectIndex(0);
this.show();
this._open = true;
@@ -1602,7 +1606,8 @@ class LookingGlass extends St.BoxLayout {
duration,
mode: Clutter.AnimationMode.EASE_OUT_QUAD,
onComplete: () => {
- Main.popModal(this);
+ Main.popModal(this._grab);
+ this._grab = null;
this.hide();
},
});
diff --git a/js/ui/main.js b/js/ui/main.js
index cc77eaa5a6..746e8239cf 100644
--- a/js/ui/main.js
+++ b/js/ui/main.js
@@ -499,9 +499,9 @@ function notifyError(msg, details) {
notify(msg, details);
}
-function _findModal(actor) {
+function _findModal(grab) {
for (let i = 0; i < modalActorFocusStack.length; i++) {
- if (modalActorFocusStack[i].actor == actor)
+ if (modalActorFocusStack[i].grab === grab)
return i;
}
return -1;
@@ -533,7 +533,7 @@ function _findModal(actor) {
* global keybindings; the default of NONE will filter
* out all keybindings
*
- * @returns {bool}: true iff we successfully acquired a grab or already had one
+ * @returns {Clutter.Grab}: the grab handle created
*/
function pushModal(actor, params) {
params = Params.parse(params, { timestamp: global.get_current_time(),
@@ -547,9 +547,9 @@ function pushModal(actor, params) {
modalCount += 1;
let actorDestroyId = actor.connect('destroy', () => {
- let index = _findModal(actor);
+ let index = _findModal(grab);
if (index >= 0)
- popModal(actor);
+ popModal(grab);
});
let prevFocus = global.stage.get_key_focus();
@@ -573,13 +573,12 @@ function pushModal(actor, params) {
actionMode = params.actionMode;
global.stage.set_key_focus(actor);
- return true;
+ return grab;
}
/**
* popModal:
- * @param {Clutter.Actor} actor: the actor passed to original invocation
- * of pushModal()
+ * @param {Clutter.Grab} grab: the grab given by pushModal()
* @param {number=} timestamp: optional timestamp
*
* Reverse the effect of pushModal(). If this invocation is undoing
@@ -590,11 +589,11 @@ function pushModal(actor, params) {
* initiated event. If not provided then the value of
* global.get_current_time() is assumed.
*/
-function popModal(actor, timestamp) {
+function popModal(grab, timestamp) {
if (timestamp == undefined)
timestamp = global.get_current_time();
- let focusIndex = _findModal(actor);
+ let focusIndex = _findModal(grab);
if (focusIndex < 0) {
global.stage.set_key_focus(null);
actionMode = Shell.ActionMode.NORMAL;
@@ -607,8 +606,7 @@ function popModal(actor, timestamp) {
let record = modalActorFocusStack[focusIndex];
record.actor.disconnect(record.destroyId);
- let grab = record.grab;
- grab.dismiss();
+ record.grab.dismiss();
if (focusIndex == modalActorFocusStack.length - 1) {
if (record.prevFocus)
diff --git a/js/ui/modalDialog.js b/js/ui/modalDialog.js
index 4b3078ae5e..259a9c6bbc 100644
--- a/js/ui/modalDialog.js
+++ b/js/ui/modalDialog.js
@@ -204,7 +204,8 @@ var ModalDialog = GObject.registerClass({
this._savedKeyFocus = focus;
else
this._savedKeyFocus = null;
- Main.popModal(this, timestamp);
+ Main.popModal(this._grab, timestamp);
+ this._grab = null;
this._hasModal = false;
if (!this._shellReactive)
@@ -218,9 +219,13 @@ var ModalDialog = GObject.registerClass({
let params = { actionMode: this._actionMode };
if (timestamp)
params['timestamp'] = timestamp;
- if (!Main.pushModal(this, params))
+ let grab = Main.pushModal(this, params);
+ if (grab.get_seat_state() === Clutter.GrabState.NONE) {
+ Main.popModal(grab);
return false;
+ }
+ this._grab = grab;
Main.layoutManager.emit('system-modal-opened');
this._hasModal = true;
diff --git a/js/ui/overview.js b/js/ui/overview.js
index 8fe167fb8c..d9d0dbcc5d 100644
--- a/js/ui/overview.js
+++ b/js/ui/overview.js
@@ -492,9 +492,12 @@ var Overview = class {
let shouldBeModal = !this._inXdndDrag;
if (shouldBeModal && !this._modal) {
let actionMode = Shell.ActionMode.OVERVIEW;
- if (Main.pushModal(global.stage, { actionMode })) {
+ let grab = Main.pushModal(global.stage, { actionMode });
+ if (grab.get_seat_state() !== Clutter.GrabState.NONE) {
+ this._grab = grab;
this._modal = true;
} else {
+ Main.popModal(grab);
this.hide();
return false;
}
@@ -502,7 +505,8 @@ var Overview = class {
} else {
// eslint-disable-next-line no-lonely-if
if (this._modal) {
- Main.popModal(global.stage);
+ Main.popModal(this._grab);
+ this._grab = false;
this._modal = false;
}
}
diff --git a/js/ui/padOsd.js b/js/ui/padOsd.js
index 9de5b49276..8362b101d5 100644
--- a/js/ui/padOsd.js
+++ b/js/ui/padOsd.js
@@ -723,7 +723,7 @@ var PadOsd = GObject.registerClass({
buttonBox.add_actor(this._editButton);
this._syncEditionMode();
- Main.pushModal(this);
+ this._grab = Main.pushModal(this);
}
_updatePadChooser() {
@@ -919,7 +919,8 @@ var PadOsd = GObject.registerClass({
}
_onDestroy() {
- Main.popModal(this);
+ Main.popModal(this._grab);
+ this._grab = null;
this._actionEditor.close();
let seat = Clutter.get_default_backend().get_default_seat();
diff --git a/js/ui/popupMenu.js b/js/ui/popupMenu.js
index 3e4745a90d..d06dbb79d0 100644
--- a/js/ui/popupMenu.js
+++ b/js/ui/popupMenu.js
@@ -1327,8 +1327,10 @@ var PopupMenuManager = class {
}
removeMenu(menu) {
- if (menu == this.activeMenu)
- Main.popModal(menu.actor);
+ if (menu === this.activeMenu) {
+ Main.popModal(this._grab);
+ this._grab = null;
+ }
let position = this._findMenu(menu);
if (position == -1) // not a menu we manage
@@ -1351,12 +1353,13 @@ var PopupMenuManager = class {
if (open) {
if (this.activeMenu)
this.activeMenu.close(BoxPointer.PopupAnimation.FADE);
- Main.pushModal(menu.actor, this._grabParams);
+ this._grab = Main.pushModal(menu.actor, this._grabParams);
this.activeMenu = menu;
} else {
if (this.activeMenu === menu)
this.activeMenu = null;
- Main.popModal(menu.actor);
+ Main.popModal(this._grab);
+ this._grab = null;
}
}
diff --git a/js/ui/screenShield.js b/js/ui/screenShield.js
index f18314b649..3d1a6eb1ad 100644
--- a/js/ui/screenShield.js
+++ b/js/ui/screenShield.js
@@ -192,14 +192,15 @@ var ScreenShield = class {
if (this._isModal)
return true;
- this._isModal = Main.pushModal(this.actor, { actionMode: Shell.ActionMode.LOCK_SCREEN });
+ let grab = Main.pushModal(this.actor, { actionMode: Shell.ActionMode.LOCK_SCREEN });
+
+ // We expect at least a keyboard grab here
+ this._isModal = (grab.get_seat_state() & Clutter.GrabState.KEYBOARD) !== 0;
if (this._isModal)
- return true;
+ this._grab = grab;
+ else
+ Main.popModal(grab);
- // We failed to get a pointer grab, it means that
- // something else has it. Try with a keyboard grab only
- this._isModal = Main.pushModal(this.actor, { options: Meta.ModalOptions.POINTER_ALREADY_GRABBED,
- actionMode: Shell.ActionMode.LOCK_SCREEN });
return this._isModal;
}
@@ -550,7 +551,8 @@ var ScreenShield = class {
this._dialog.popModal();
if (this._isModal) {
- Main.popModal(this.actor);
+ Main.popModal(this._grab);
+ this._grab = null;
this._isModal = false;
}
diff --git a/js/ui/switcherPopup.js b/js/ui/switcherPopup.js
index ccc8b0fb0e..17c3fcaa3e 100644
--- a/js/ui/switcherPopup.js
+++ b/js/ui/switcherPopup.js
@@ -1,7 +1,7 @@
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported SwitcherPopup, SwitcherList */
-const { Clutter, GLib, GObject, Meta, St } = imports.gi;
+const { Clutter, GLib, GObject, St } = imports.gi;
const Main = imports.ui.main;
@@ -100,11 +100,13 @@ var SwitcherPopup = GObject.registerClass({
if (this._items.length == 0)
return false;
- if (!Main.pushModal(this)) {
- // Probably someone else has a pointer grab, try again with keyboard only
- if (!Main.pushModal(this, { options: Meta.ModalOptions.POINTER_ALREADY_GRABBED }))
- return false;
+ let grab = Main.pushModal(this);
+ // We expect at least a keyboard grab here
+ if ((grab.get_seat_state() & Clutter.GrabState.KEYBOARD) === 0) {
+ Main.popModal(grab);
+ return false;
}
+ this._grab = grab;
this._haveModal = true;
this._modifierMask = primaryModifier(mask);
@@ -306,7 +308,8 @@ var SwitcherPopup = GObject.registerClass({
_popModal() {
if (this._haveModal) {
- Main.popModal(this);
+ Main.popModal(this._grab);
+ this._grab = null;
this._haveModal = false;
}
}
diff --git a/js/ui/unlockDialog.js b/js/ui/unlockDialog.js
index b33da66a1f..7fa307aa92 100644
--- a/js/ui/unlockDialog.js
+++ b/js/ui/unlockDialog.js
@@ -904,9 +904,13 @@ var UnlockDialog = GObject.registerClass({
timestamp,
actionMode: Shell.ActionMode.UNLOCK_SCREEN,
};
- if (!Main.pushModal(this, modalParams))
+ let grab = Main.pushModal(this, modalParams);
+ if (grab.get_seat_state() !== Clutter.GrabState.ALL) {
+ Main.popModal(grab);
return false;
+ }
+ this._grab = grab;
this._isModal = true;
return true;
@@ -918,7 +922,8 @@ var UnlockDialog = GObject.registerClass({
popModal(timestamp) {
if (this._isModal) {
- Main.popModal(this, timestamp);
+ Main.popModal(this._grab, timestamp);
+ this._grab = null;
this._isModal = false;
}
}
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