filestash/public/assets/lib/vendor/leaflet/Toolbar.js
2024-08-28 02:05:24 +10:00

334 lines
8.9 KiB
JavaScript

/**
* @class L.Draw.Toolbar
* @aka Toolbar
*
* The toolbar class of the API — it is used to create the ui
* This will be depreciated
*
* @example
*
* ```js
* var toolbar = L.Toolbar();
* toolbar.addToolbar(map);
* ```
*
* ### Disabling a toolbar
*
* If you do not want a particular toolbar in your app you can turn it off by setting the toolbar to false.
*
* ```js
* var drawControl = new L.Control.Draw({
* draw: false,
* edit: {
* featureGroup: editableLayers
* }
* });
* ```
*
* ### Disabling a toolbar item
*
* If you want to turn off a particular toolbar item, set it to false. The following disables drawing polygons and
* markers. It also turns off the ability to edit layers.
*
* ```js
* var drawControl = new L.Control.Draw({
* draw: {
* polygon: false,
* marker: false
* },
* edit: {
* featureGroup: editableLayers,
* edit: false
* }
* });
* ```
*/
L.Toolbar = L.Class.extend({
// @section Methods for modifying the toolbar
// @method initialize(options): void
// Toolbar constructor
initialize: function (options) {
L.setOptions(this, options);
this._modes = {};
this._actionButtons = [];
this._activeMode = null;
var version = L.version.split('.');
//If Version is >= 1.2.0
if (parseInt(version[0], 10) === 1 && parseInt(version[1], 10) >= 2) {
L.Toolbar.include(L.Evented.prototype);
} else {
L.Toolbar.include(L.Mixin.Events);
}
},
// @method enabled(): boolean
// Gets a true/false of whether the toolbar is enabled
enabled: function () {
return this._activeMode !== null;
},
// @method disable(): void
// Disables the toolbar
disable: function () {
if (!this.enabled()) {
return;
}
this._activeMode.handler.disable();
},
// @method addToolbar(map): L.DomUtil
// Adds the toolbar to the map and returns the toolbar dom element
addToolbar: function (map) {
var container = L.DomUtil.create('div', 'leaflet-draw-section'),
buttonIndex = 0,
buttonClassPrefix = this._toolbarClass || '',
modeHandlers = this.getModeHandlers(map),
i;
this._toolbarContainer = L.DomUtil.create('div', 'leaflet-draw-toolbar leaflet-bar');
this._map = map;
for (i = 0; i < modeHandlers.length; i++) {
if (modeHandlers[i].enabled) {
this._initModeHandler(
modeHandlers[i].handler,
this._toolbarContainer,
buttonIndex++,
buttonClassPrefix,
modeHandlers[i].title
);
}
}
// if no buttons were added, do not add the toolbar
if (!buttonIndex) {
return;
}
// Save button index of the last button, -1 as we would have ++ after the last button
this._lastButtonIndex = --buttonIndex;
// Create empty actions part of the toolbar
this._actionsContainer = L.DomUtil.create('ul', 'leaflet-draw-actions');
// Add draw and cancel containers to the control container
container.appendChild(this._toolbarContainer);
container.appendChild(this._actionsContainer);
return container;
},
// @method removeToolbar(): void
// Removes the toolbar and drops the handler event listeners
removeToolbar: function () {
// Dispose each handler
for (var handlerId in this._modes) {
if (this._modes.hasOwnProperty(handlerId)) {
// Unbind handler button
this._disposeButton(
this._modes[handlerId].button,
this._modes[handlerId].handler.enable,
this._modes[handlerId].handler
);
// Make sure is disabled
this._modes[handlerId].handler.disable();
// Unbind handler
this._modes[handlerId].handler
.off('enabled', this._handlerActivated, this)
.off('disabled', this._handlerDeactivated, this);
}
}
this._modes = {};
// Dispose the actions toolbar
for (var i = 0, l = this._actionButtons.length; i < l; i++) {
this._disposeButton(
this._actionButtons[i].button,
this._actionButtons[i].callback,
this
);
}
this._actionButtons = [];
this._actionsContainer = null;
},
_initModeHandler: function (handler, container, buttonIndex, classNamePredix, buttonTitle) {
var type = handler.type;
this._modes[type] = {};
this._modes[type].handler = handler;
this._modes[type].button = this._createButton({
type: type,
title: buttonTitle,
className: classNamePredix + '-' + type,
container: container,
callback: this._modes[type].handler.enable,
context: this._modes[type].handler
});
this._modes[type].buttonIndex = buttonIndex;
this._modes[type].handler
.on('enabled', this._handlerActivated, this)
.on('disabled', this._handlerDeactivated, this);
},
/* Detect iOS based on browser User Agent, based on:
* http://stackoverflow.com/a/9039885 */
_detectIOS: function () {
var iOS = (/iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream);
return iOS;
},
_createButton: function (options) {
var link = L.DomUtil.create('a', options.className || '', options.container);
// Screen reader tag
var sr = L.DomUtil.create('span', 'sr-only', options.container);
link.href = '#';
link.appendChild(sr);
if (options.title) {
link.title = options.title;
sr.innerHTML = options.title;
}
if (options.text) {
link.innerHTML = options.text;
sr.innerHTML = options.text;
}
/* iOS does not use click events */
var buttonEvent = this._detectIOS() ? 'touchstart' : 'click';
L.DomEvent
.on(link, 'click', L.DomEvent.stopPropagation)
.on(link, 'mousedown', L.DomEvent.stopPropagation)
.on(link, 'dblclick', L.DomEvent.stopPropagation)
.on(link, 'touchstart', L.DomEvent.stopPropagation)
.on(link, 'click', L.DomEvent.preventDefault)
.on(link, buttonEvent, options.callback, options.context);
return link;
},
_disposeButton: function (button, callback) {
/* iOS does not use click events */
var buttonEvent = this._detectIOS() ? 'touchstart' : 'click';
L.DomEvent
.off(button, 'click', L.DomEvent.stopPropagation)
.off(button, 'mousedown', L.DomEvent.stopPropagation)
.off(button, 'dblclick', L.DomEvent.stopPropagation)
.off(button, 'touchstart', L.DomEvent.stopPropagation)
.off(button, 'click', L.DomEvent.preventDefault)
.off(button, buttonEvent, callback);
},
_handlerActivated: function (e) {
// Disable active mode (if present)
this.disable();
// Cache new active feature
this._activeMode = this._modes[e.handler];
L.DomUtil.addClass(this._activeMode.button, 'leaflet-draw-toolbar-button-enabled');
this._showActionsToolbar();
this.fire('enable');
},
_handlerDeactivated: function () {
this._hideActionsToolbar();
L.DomUtil.removeClass(this._activeMode.button, 'leaflet-draw-toolbar-button-enabled');
this._activeMode = null;
this.fire('disable');
},
_createActions: function (handler) {
var container = this._actionsContainer,
buttons = this.getActions(handler),
l = buttons.length,
li, di, dl, button;
// Dispose the actions toolbar (todo: dispose only not used buttons)
for (di = 0, dl = this._actionButtons.length; di < dl; di++) {
this._disposeButton(this._actionButtons[di].button, this._actionButtons[di].callback);
}
this._actionButtons = [];
// Remove all old buttons
while (container.firstChild) {
container.removeChild(container.firstChild);
}
for (var i = 0; i < l; i++) {
if ('enabled' in buttons[i] && !buttons[i].enabled) {
continue;
}
li = L.DomUtil.create('li', '', container);
button = this._createButton({
title: buttons[i].title,
text: buttons[i].text,
container: li,
callback: buttons[i].callback,
context: buttons[i].context
});
this._actionButtons.push({
button: button,
callback: buttons[i].callback
});
}
},
_showActionsToolbar: function () {
var buttonIndex = this._activeMode.buttonIndex,
lastButtonIndex = this._lastButtonIndex,
toolbarPosition = this._activeMode.button.offsetTop - 1;
// Recreate action buttons on every click
this._createActions(this._activeMode.handler);
// Correctly position the cancel button
this._actionsContainer.style.top = toolbarPosition + 'px';
if (buttonIndex === 0) {
L.DomUtil.addClass(this._toolbarContainer, 'leaflet-draw-toolbar-notop');
L.DomUtil.addClass(this._actionsContainer, 'leaflet-draw-actions-top');
}
if (buttonIndex === lastButtonIndex) {
L.DomUtil.addClass(this._toolbarContainer, 'leaflet-draw-toolbar-nobottom');
L.DomUtil.addClass(this._actionsContainer, 'leaflet-draw-actions-bottom');
}
this._actionsContainer.style.display = 'block';
this._map.fire(L.Draw.Event.TOOLBAROPENED);
},
_hideActionsToolbar: function () {
this._actionsContainer.style.display = 'none';
L.DomUtil.removeClass(this._toolbarContainer, 'leaflet-draw-toolbar-notop');
L.DomUtil.removeClass(this._toolbarContainer, 'leaflet-draw-toolbar-nobottom');
L.DomUtil.removeClass(this._actionsContainer, 'leaflet-draw-actions-top');
L.DomUtil.removeClass(this._actionsContainer, 'leaflet-draw-actions-bottom');
this._map.fire(L.Draw.Event.TOOLBARCLOSED);
}
});