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popupMenu: Add and use GtkMenuTracker to build the remote menu

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This simplifies the code required to build remote menus and
put all the items in the right place, and makes us share our
implementation with GTK+.

https://bugzilla.gnome.org/show_bug.cgi?id=698427
This commit is contained in:
Jasper St. Pierre
2013-04-19 21:38:47 -04:00
parent c0afe7260a
commit 196fb0f16e
6 changed files with 718 additions and 105 deletions
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140
js/ui/popupMenu.js
View File

@ -1799,8 +1799,8 @@ const RemoteMenu = new Lang.Class({
this.model = model;
this.actionGroup = actionGroup;
this._actions = { };
this._modelChanged(this.model, 0, 0, this.model.get_n_items(), this);
this._actions = {};
this._trackMenu(model, this);
this._actionStateChangeId = this.actionGroup.connect('action-state-changed', Lang.bind(this, this._actionStateChanged));
this._actionEnableChangeId = this.actionGroup.connect('action-enabled-changed', Lang.bind(this, this._actionEnabledChanged));
@ -1858,7 +1858,7 @@ const RemoteMenu = new Lang.Class({
break;
default:
log('Action "%s" has state of type %s, which is not supported'.format(action_id, action.state.get_type_string()));
return [null, false];
return;
}
} else {
target = model.get_item_attribute_value(index, Gio.MENU_ATTRIBUTE_TARGET, null);
@ -1878,8 +1878,18 @@ const RemoteMenu = new Lang.Class({
if (pos != -1)
action.items.splice(pos, 1);
}));
},
return [item, false];
_trackMenu: function(model, item) {
item._tracker = Shell.MenuTracker.new(model,
null, /* action namespace */
Lang.bind(this, this._insertItem, item),
Lang.bind(this, this._removeItem, item));
item.connect('destroy', function() {
item._tracker.destroy();
item._tracker = null;
});
},
_createMenuItem: function(model, index) {
@ -1888,26 +1898,11 @@ const RemoteMenu = new Lang.Class({
// remove all underscores that are not followed by another underscore
label = label.replace(/_([^_])/, '$1');
let section_link = model.get_item_link(index, Gio.MENU_LINK_SECTION);
if (section_link) {
let item = new PopupMenuSection();
if (label) {
let title = new PopupMenuItem(label, { reactive: false,
style_class: 'popup-subtitle-menu-item' });
item._titleMenuItem = title;
title._ignored = true;
item.addMenuItem(title);
}
this._modelChanged(section_link, 0, 0, section_link.get_n_items(), item);
return [item, true];
}
let submenu_link = model.get_item_link(index, Gio.MENU_LINK_SUBMENU);
if (submenu_link) {
let submenuModel = model.get_item_link(index, Gio.MENU_LINK_SUBMENU);
if (submenuModel) {
let item = new PopupSubMenuMenuItem(label);
this._modelChanged(submenu_link, 0, 0, submenu_link.get_n_items(), item.menu);
return [item, false];
this._trackMenu(submenuModel, item.menu);
return item;
}
let item = new PopupMenuItem(label);
@ -1918,7 +1913,7 @@ const RemoteMenu = new Lang.Class({
if (this.actionGroup.has_action(action_id)) {
this._actionAdded(model, item, index);
return [item, false];
return item;
}
let signalId = this.actionGroup.connect('action-added', Lang.bind(this, function(actionGroup, actionName) {
@ -1931,85 +1926,6 @@ const RemoteMenu = new Lang.Class({
return [item, false];
},
_modelChanged: function(model, position, removed, added, target) {
let j, k;
let j0, k0;
let currentItems = target._getMenuItems();
k0 = 0;
// skip ignored items at the beginning
while (k0 < currentItems.length && currentItems[k0]._ignored)
k0++;
// find the right menu item matching the model item
for (j0 = 0; k0 < currentItems.length && j0 < position; j0++, k0++) {
if (currentItems[k0]._ignored)
k0++;
}
if (removed == -1) {
// special flag to indicate we should destroy everything
for (k = k0; k < currentItems.length; k++)
currentItems[k].destroy();
} else {
for (j = j0, k = k0; k < currentItems.length && j < j0 + removed; j++, k++) {
currentItems[k].destroy();
if (currentItems[k]._ignored)
j--;
}
}
for (j = j0, k = k0; j < j0 + added; j++, k++) {
let [item, addSeparator] = this._createMenuItem(model, j);
if (!item)
continue;
// separators must be added in the parent to make autohiding work
if (addSeparator) {
let separator = new PopupSeparatorMenuItem();
item.separators.push(separator);
separator._ignored = true;
target.addMenuItem(separator, k+1);
k++;
}
target.addMenuItem(item, k);
if (addSeparator) {
let separator = new PopupSeparatorMenuItem();
item.separators.push(separator);
separator._ignored = true;
target.addMenuItem(separator, k+1);
k++;
}
}
if (!model._changedId) {
model._changedId = model.connect('items-changed', Lang.bind(this, this._modelChanged, target));
model._destroyId = target.connect('destroy', function() {
if (model._changedId)
model.disconnect(model._changedId);
if (model._destroyId)
target.disconnect(model._destroyId);
model._changedId = 0;
model._destroyId = 0;
});
}
if (target instanceof PopupMenuSection) {
if (target._titleMenuItem)
target.actor.visible = target.numMenuItems != 1;
else
target.actor.visible = target.numMenuItems != 0;
} else {
let sourceItem = target.sourceActor._delegate;
if (sourceItem instanceof PopupSubMenuMenuItem)
sourceItem.actor.visible = target.numMenuItems != 0;
}
},
_actionStateChanged: function(actionGroup, action_id) {
let action = this._actions[action_id];
if (!action)
@ -2047,7 +1963,23 @@ const RemoteMenu = new Lang.Class({
item.actor.reactive = item.actor.can_focus = action.enabled;
}
}
}
},
_insertItem: function(position, model, item_index, action_namespace, is_separator, target) {
let item;
if (is_separator)
item = new PopupSeparatorMenuItem();
else
item = this._createMenuItem(model, item_index);
target.addMenuItem(item, position);
},
_removeItem: function(position, target) {
let items = target._getMenuItems();
items[position].destroy();
},
});
/* Basic implementation of a menu manager.