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Simplify Button class by using ShellButtonBox

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Make Button class purely about adding visuals, and use ShellButtonBox
for behavior. API equivalences:

  shell.button => shell.actor [for consistency]

  staysPressed parameter to constructor => replaced by manually setting
   the 'active' property of button.actor as appropriate

  pressIn/release => button.actor.active = true/false

  enter-event/leave-event signals => button.actor notify::hover

Along the way, this fixes a bug with the user status menu where it was
not getting set to active because the button was getting a leave
(triggered by the menu popping up and grabbing the pointer) before for
button release, which disabled the staysPressed behavior.

Reported by Michael Meeks
http://bugzilla.gnome.org/show_bug.cgi?id=593471
This commit is contained in:
Owen W. Taylor
2009-08-29 07:23:28 -04:00
parent 0fd6bc5172
commit 5803aa7e65
3 changed files with 66 additions and 114 deletions
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59
js/ui/panel.js
View File

@ -269,10 +269,10 @@ Panel.prototype = {
/* left side */
this.button = new Button.Button(_("Activities"), PANEL_BUTTON_COLOR, PRESSED_BUTTON_BACKGROUND_COLOR,
PANEL_FOREGROUND_COLOR, true, DEFAULT_FONT);
this.button.button.height = PANEL_HEIGHT;
PANEL_FOREGROUND_COLOR, DEFAULT_FONT);
this.button.actor.height = PANEL_HEIGHT;
this._leftBox.append(this.button.button, Big.BoxPackFlags.NONE);
this._leftBox.append(this.button.actor, Big.BoxPackFlags.NONE);
// We use this flag to mark the case where the user has entered the
// hot corner and has not left both the hot corner and a surrounding
@ -374,43 +374,46 @@ Panel.prototype = {
let statusbutton = new Button.Button(statusbox,
PANEL_BUTTON_COLOR,
PRESSED_BUTTON_BACKGROUND_COLOR,
PANEL_FOREGROUND_COLOR,
true);
statusbutton.button.height = PANEL_HEIGHT;
statusbutton.button.connect('button-press-event', function (b, e) {
statusmenu.toggle(e);
return false;
PANEL_FOREGROUND_COLOR);
statusbutton.actor.height = PANEL_HEIGHT;
statusbutton.actor.connect('button-press-event', function (b, e) {
if (e.get_button() == 1 && e.get_click_count() == 1) {
statusmenu.toggle(e);
// The statusmenu might not pop up if it couldn't get a pointer grab
if (statusmenu.is_active())
statusbutton.actor.active = true;
return true;
} else {
return false;
}
});
// If popping up the menu failed (because there was already a grab in
// effect from Mutter or another app), then we'll never get a ::deactivated
// signal because the menu was never activated, so we need to unhighlight
// separately when the user releases the mouse button.
//
// We depend on connection ordering; this needs to be called after Button's
// ::button-release-event handler; that will set the active flag for this
// stays-pressed button, then we unset the active flag by calling release().
statusbutton.button.connect('button-release-event', function (b, e) {
if (!statusmenu.is_active())
statusbutton.release();
return false;
});
this._rightBox.append(statusbutton.button, Big.BoxPackFlags.NONE);
this._rightBox.append(statusbutton.actor, Big.BoxPackFlags.NONE);
// We get a deactivated event when the popup disappears
this._statusmenu.connect('deactivated', function (sm) {
statusbutton.release();
statusbutton.actor.active = false;
});
// TODO: decide what to do with the rest of the panel in the Overview mode (make it fade-out, become non-reactive, etc.)
// We get into the Overview mode on button-press-event as opposed to button-release-event because eventually we'll probably
// have the Overview act like a menu that allows the user to release the mouse on the activity the user wants
// to switch to.
this.button.button.connect('button-press-event',
Lang.bind(Main.overview, Main.overview.toggle));
this.button.actor.connect('button-press-event', function(b, e) {
if (e.get_button() == 1 && e.get_click_count() == 1) {
Main.overview.toggle();
return true;
} else {
return false;
}
});
// In addition to pressing the button, the Overview can be entered and exited by other means, such as
// pressing the System key, Alt+F1 or Esc. We want the button to be pressed in when the Overview is entered
// and to be released when it is exited regardless of how it was triggered.
Main.overview.connect('showing', Lang.bind(this.button, this.button.pressIn));
Main.overview.connect('hiding', Lang.bind(this.button, this.button.release));
Main.overview.connect('showing', Lang.bind(this, function() {
this.button.actor.active = true;
}));
Main.overview.connect('hiding', Lang.bind(this, function() {
this.button.actor.active = false;
}));
Main.chrome.addActor(this.actor);
Main.chrome.setVisibleInOverview(this.actor, true);