openlayers
Version:
Build tools and sources for developing OpenLayers based mapping applications
260 lines (228 loc) • 7.01 kB
JavaScript
goog.provide('ol.control.FullScreen');
goog.require('ol');
goog.require('ol.control.Control');
goog.require('ol.css');
goog.require('ol.dom');
goog.require('ol.events');
goog.require('ol.events.EventType');
/**
* @classdesc
* Provides a button that when clicked fills up the full screen with the map.
* The full screen source element is by default the element containing the map viewport unless
* overriden by providing the `source` option. In which case, the dom
* element introduced using this parameter will be displayed in full screen.
*
* When in full screen mode, a close button is shown to exit full screen mode.
* The [Fullscreen API](http://www.w3.org/TR/fullscreen/) is used to
* toggle the map in full screen mode.
*
*
* @constructor
* @extends {ol.control.Control}
* @param {olx.control.FullScreenOptions=} opt_options Options.
* @api stable
*/
ol.control.FullScreen = function(opt_options) {
var options = opt_options ? opt_options : {};
/**
* @private
* @type {string}
*/
this.cssClassName_ = options.className !== undefined ? options.className :
'ol-full-screen';
var label = options.label !== undefined ? options.label : '\u2922';
/**
* @private
* @type {Node}
*/
this.labelNode_ = typeof label === 'string' ?
document.createTextNode(label) : label;
var labelActive = options.labelActive !== undefined ? options.labelActive : '\u00d7';
/**
* @private
* @type {Node}
*/
this.labelActiveNode_ = typeof labelActive === 'string' ?
document.createTextNode(labelActive) : labelActive;
var tipLabel = options.tipLabel ? options.tipLabel : 'Toggle full-screen';
var button = document.createElement('button');
button.className = this.cssClassName_ + '-' + ol.control.FullScreen.isFullScreen();
button.setAttribute('type', 'button');
button.title = tipLabel;
button.appendChild(this.labelNode_);
ol.events.listen(button, ol.events.EventType.CLICK,
this.handleClick_, this);
var cssClasses = this.cssClassName_ + ' ' + ol.css.CLASS_UNSELECTABLE +
' ' + ol.css.CLASS_CONTROL + ' ' +
(!ol.control.FullScreen.isFullScreenSupported() ? ol.css.CLASS_UNSUPPORTED : '');
var element = document.createElement('div');
element.className = cssClasses;
element.appendChild(button);
ol.control.Control.call(this, {
element: element,
target: options.target
});
/**
* @private
* @type {boolean}
*/
this.keys_ = options.keys !== undefined ? options.keys : false;
/**
* @private
* @type {Element|string|undefined}
*/
this.source_ = options.source;
};
ol.inherits(ol.control.FullScreen, ol.control.Control);
/**
* @param {Event} event The event to handle
* @private
*/
ol.control.FullScreen.prototype.handleClick_ = function(event) {
event.preventDefault();
this.handleFullScreen_();
};
/**
* @private
*/
ol.control.FullScreen.prototype.handleFullScreen_ = function() {
if (!ol.control.FullScreen.isFullScreenSupported()) {
return;
}
var map = this.getMap();
if (!map) {
return;
}
if (ol.control.FullScreen.isFullScreen()) {
ol.control.FullScreen.exitFullScreen();
} else {
var element;
if (this.source_) {
element = typeof this.source_ === 'string' ?
document.getElementById(this.source_) :
this.source_;
} else {
element = map.getTargetElement();
}
if (this.keys_) {
ol.control.FullScreen.requestFullScreenWithKeys(element);
} else {
ol.control.FullScreen.requestFullScreen(element);
}
}
};
/**
* @private
*/
ol.control.FullScreen.prototype.handleFullScreenChange_ = function() {
var button = this.element.firstElementChild;
var map = this.getMap();
if (ol.control.FullScreen.isFullScreen()) {
button.className = this.cssClassName_ + '-true';
ol.dom.replaceNode(this.labelActiveNode_, this.labelNode_);
} else {
button.className = this.cssClassName_ + '-false';
ol.dom.replaceNode(this.labelNode_, this.labelActiveNode_);
}
if (map) {
map.updateSize();
}
};
/**
* @inheritDoc
* @api stable
*/
ol.control.FullScreen.prototype.setMap = function(map) {
ol.control.Control.prototype.setMap.call(this, map);
if (map) {
this.listenerKeys.push(ol.events.listen(document,
ol.control.FullScreen.getChangeType_(),
this.handleFullScreenChange_, this)
);
}
};
/**
* @return {boolean} Fullscreen is supported by the current platform.
*/
ol.control.FullScreen.isFullScreenSupported = function() {
var body = document.body;
return !!(
body.webkitRequestFullscreen ||
(body.mozRequestFullScreen && document.mozFullScreenEnabled) ||
(body.msRequestFullscreen && document.msFullscreenEnabled) ||
(body.requestFullscreen && document.fullscreenEnabled)
);
};
/**
* @return {boolean} Element is currently in fullscreen.
*/
ol.control.FullScreen.isFullScreen = function() {
return !!(
document.webkitIsFullScreen || document.mozFullScreen ||
document.msFullscreenElement || document.fullscreenElement
);
};
/**
* Request to fullscreen an element.
* @param {Node} element Element to request fullscreen
*/
ol.control.FullScreen.requestFullScreen = function(element) {
if (element.requestFullscreen) {
element.requestFullscreen();
} else if (element.msRequestFullscreen) {
element.msRequestFullscreen();
} else if (element.mozRequestFullScreen) {
element.mozRequestFullScreen();
} else if (element.webkitRequestFullscreen) {
element.webkitRequestFullscreen();
}
};
/**
* Request to fullscreen an element with keyboard input.
* @param {Node} element Element to request fullscreen
*/
ol.control.FullScreen.requestFullScreenWithKeys = function(element) {
if (element.mozRequestFullScreenWithKeys) {
element.mozRequestFullScreenWithKeys();
} else if (element.webkitRequestFullscreen) {
element.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
} else {
ol.control.FullScreen.requestFullScreen(element);
}
};
/**
* Exit fullscreen.
*/
ol.control.FullScreen.exitFullScreen = function() {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
}
};
/**
* @return {string} Change type.
* @private
*/
ol.control.FullScreen.getChangeType_ = (function() {
var changeType;
return function() {
if (!changeType) {
var body = document.body;
if (body.webkitRequestFullscreen) {
changeType = 'webkitfullscreenchange';
} else if (body.mozRequestFullScreen) {
changeType = 'mozfullscreenchange';
} else if (body.msRequestFullscreen) {
changeType = 'MSFullscreenChange';
} else if (body.requestFullscreen) {
changeType = 'fullscreenchange';
}
}
return changeType;
};
})();