brouter-web/js/plugin/Sidebar.js
Henrik Fehlauer 844a9038ee Add shortcuts to toggle sidebar and switch tabs
The 'T' key will show/hide the most recent sidebar tab.

Pressing 'Shift+T' will switch to the next sidebar tab, possibly
wrapping around to the first tab.

If the Itinerary tab is hidden, it will be skipped.
2020-06-13 18:00:00 +00:00

150 lines
4.1 KiB
JavaScript

BR.Sidebar = L.Control.Sidebar.extend({
storageId: 'sidebar-control',
options: {
position: 'right',
container: 'sidebar',
tabContainer: 'sidebarTabs',
autopan: false,
defaultTabId: '',
shortcut: {
toggleTabs: 84 // char code for 't'
},
// Tabs to be notified when shown or hidden
// (tab div id -> object implementing show/hide methods)
listeningTabs: {}
},
initialize: function(id, options) {
L.Control.Sidebar.prototype.initialize.call(this, id, options);
this.oldTab = null;
L.DomEvent.addListener(document, 'keydown', this._keydownListener, this);
},
addTo: function(map) {
L.Control.Sidebar.prototype.addTo.call(this, map);
this.on('content', this._notifyOnContent, this);
this.on('closing', this._notifyOnClose, this);
this.on('toggleExpand', this._notifyOnResize, this);
this.on(
'closing',
function() {
this._map.getContainer().focus();
},
this
);
this.recentTab = this.options.defaultTabId;
this.on(
'content',
function(tab) {
this.recentTab = tab.id;
},
this
);
this._rememberTabState();
if (L.Browser.touch && BR.Browser.touchScreenDetectable && !BR.Browser.touchScreen) {
L.DomUtil.removeClass(this._container, 'leaflet-touch');
L.DomUtil.removeClass(this._tabContainer, 'leaflet-touch');
}
return this;
},
showPanel: function(id) {
var tab = this._getTab(id);
tab.hidden = false;
return this;
},
_rememberTabState: function() {
if (BR.Util.localStorageAvailable()) {
this.on('content closing', this._storeActiveTab, this);
var tabId = localStorage.getItem(this.storageId);
// 'true': legacy value for toggling old sidebar
if (tabId === 'true') {
tabId = this.options.defaultTabId;
} else if (tabId === null) {
// not set: closed by default for new users
tabId = '';
}
if (tabId !== '') {
this.open(tabId);
}
}
},
_notifyShow: function(tab) {
if (tab && tab.show) {
tab.show();
}
},
_notifyHide: function(tab) {
if (tab && tab.hide) {
tab.hide();
}
},
_notifyOnContent: function(e) {
var tab = this.options.listeningTabs[e.id];
this._notifyHide(this.oldTab);
this._notifyShow(tab);
this.oldTab = tab;
},
_notifyOnClose: function(e) {
this._notifyHide(this.oldTab);
this.oldTab = null;
},
_notifyOnResize: function(e) {
var tab = this.oldTab;
if (tab && tab.onResize) {
tab.onResize();
}
},
_storeActiveTab: function(e) {
localStorage.setItem(this.storageId, e.id || '');
},
_keydownListener: function(e) {
if (BR.Util.keyboardShortcutsAllowed(e) && e.keyCode === this.options.shortcut.toggleTabs) {
if ($('#sidebarTabs > ul > li[class=active]').length) {
// sidebar is currently open
if (e.shiftKey) {
// try to find next tab
var nextTab = $('#sidebarTabs > ul > li[class=active] ~ li:not([hidden]) > a');
if (!nextTab.length) {
// wrap around to first tab
nextTab = $('#sidebarTabs > ul > li:not([hidden]) > a');
}
// switch to next or first tab
this.open(nextTab.attr('href').slice(1));
} else {
// close current tab
this.close();
}
} else {
// sidebar is currently closed, open recent or default tab
this.open(this.recentTab);
}
}
}
});
BR.sidebar = function(divId, options) {
return new BR.Sidebar(divId, options);
};