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-/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
- * full list of contributors). Published under the 2-clause BSD license.
- * See license.txt in the OpenLayers distribution or repository for the
- * full text of the license. */
-
-/**
- * @requires OpenLayers/Control/ZoomBox.js
- * @requires OpenLayers/Control/DragPan.js
- * @requires OpenLayers/Handler/MouseWheel.js
- * @requires OpenLayers/Handler/Click.js
- */
-
-/**
- * Class: OpenLayers.Control.Navigation
- * The navigation control handles map browsing with mouse events (dragging,
- * double-clicking, and scrolling the wheel). Create a new navigation
- * control with the <OpenLayers.Control.Navigation> control.
- *
- * Note that this control is added to the map by default (if no controls
- * array is sent in the options object to the <OpenLayers.Map>
- * constructor).
- *
- * Inherits:
- * - <OpenLayers.Control>
- */
-OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
-
- /**
- * Property: dragPan
- * {<OpenLayers.Control.DragPan>}
- */
- dragPan: null,
-
- /**
- * APIProperty: dragPanOptions
- * {Object} Options passed to the DragPan control.
- */
- dragPanOptions: null,
-
- /**
- * Property: pinchZoom
- * {<OpenLayers.Control.PinchZoom>}
- */
- pinchZoom: null,
-
- /**
- * APIProperty: pinchZoomOptions
- * {Object} Options passed to the PinchZoom control.
- */
- pinchZoomOptions: null,
-
- /**
- * APIProperty: documentDrag
- * {Boolean} Allow panning of the map by dragging outside map viewport.
- * Default is false.
- */
- documentDrag: false,
-
- /**
- * Property: zoomBox
- * {<OpenLayers.Control.ZoomBox>}
- */
- zoomBox: null,
-
- /**
- * APIProperty: zoomBoxEnabled
- * {Boolean} Whether the user can draw a box to zoom
- */
- zoomBoxEnabled: true,
-
- /**
- * APIProperty: zoomWheelEnabled
- * {Boolean} Whether the mousewheel should zoom the map
- */
- zoomWheelEnabled: true,
-
- /**
- * Property: mouseWheelOptions
- * {Object} Options passed to the MouseWheel control (only useful if
- * <zoomWheelEnabled> is set to true). Default is no options for maps
- * with fractionalZoom set to true, otherwise
- * {cumulative: false, interval: 50, maxDelta: 6}
- */
- mouseWheelOptions: null,
-
- /**
- * APIProperty: handleRightClicks
- * {Boolean} Whether or not to handle right clicks. Default is false.
- */
- handleRightClicks: false,
-
- /**
- * APIProperty: zoomBoxKeyMask
- * {Integer} <OpenLayers.Handler> key code of the key, which has to be
- * pressed, while drawing the zoom box with the mouse on the screen.
- * You should probably set handleRightClicks to true if you use this
- * with MOD_CTRL, to disable the context menu for machines which use
- * CTRL-Click as a right click.
- * Default: <OpenLayers.Handler.MOD_SHIFT>
- */
- zoomBoxKeyMask: OpenLayers.Handler.MOD_SHIFT,
-
- /**
- * APIProperty: autoActivate
- * {Boolean} Activate the control when it is added to a map. Default is
- * true.
- */
- autoActivate: true,
-
- /**
- * Constructor: OpenLayers.Control.Navigation
- * Create a new navigation control
- *
- * Parameters:
- * options - {Object} An optional object whose properties will be set on
- * the control
- */
- initialize: function(options) {
- this.handlers = {};
- OpenLayers.Control.prototype.initialize.apply(this, arguments);
- },
-
- /**
- * Method: destroy
- * The destroy method is used to perform any clean up before the control
- * is dereferenced. Typically this is where event listeners are removed
- * to prevent memory leaks.
- */
- destroy: function() {
- this.deactivate();
-
- if (this.dragPan) {
- this.dragPan.destroy();
- }
- this.dragPan = null;
-
- if (this.zoomBox) {
- this.zoomBox.destroy();
- }
- this.zoomBox = null;
-
- if (this.pinchZoom) {
- this.pinchZoom.destroy();
- }
- this.pinchZoom = null;
-
- OpenLayers.Control.prototype.destroy.apply(this,arguments);
- },
-
- /**
- * Method: activate
- */
- activate: function() {
- this.dragPan.activate();
- if (this.zoomWheelEnabled) {
- this.handlers.wheel.activate();
- }
- this.handlers.click.activate();
- if (this.zoomBoxEnabled) {
- this.zoomBox.activate();
- }
- if (this.pinchZoom) {
- this.pinchZoom.activate();
- }
- return OpenLayers.Control.prototype.activate.apply(this,arguments);
- },
-
- /**
- * Method: deactivate
- */
- deactivate: function() {
- if (this.pinchZoom) {
- this.pinchZoom.deactivate();
- }
- this.zoomBox.deactivate();
- this.dragPan.deactivate();
- this.handlers.click.deactivate();
- this.handlers.wheel.deactivate();
- return OpenLayers.Control.prototype.deactivate.apply(this,arguments);
- },
-
- /**
- * Method: draw
- */
- draw: function() {
- // disable right mouse context menu for support of right click events
- if (this.handleRightClicks) {
- this.map.viewPortDiv.oncontextmenu = OpenLayers.Function.False;
- }
-
- var clickCallbacks = {
- 'click': this.defaultClick,
- 'dblclick': this.defaultDblClick,
- 'dblrightclick': this.defaultDblRightClick
- };
- var clickOptions = {
- 'double': true,
- 'stopDouble': true
- };
- this.handlers.click = new OpenLayers.Handler.Click(
- this, clickCallbacks, clickOptions
- );
- this.dragPan = new OpenLayers.Control.DragPan(
- OpenLayers.Util.extend({
- map: this.map,
- documentDrag: this.documentDrag
- }, this.dragPanOptions)
- );
- this.zoomBox = new OpenLayers.Control.ZoomBox(
- {map: this.map, keyMask: this.zoomBoxKeyMask});
- this.dragPan.draw();
- this.zoomBox.draw();
- var wheelOptions = this.map.fractionalZoom ? {} : {
- cumulative: false,
- interval: 50,
- maxDelta: 6
- };
- this.handlers.wheel = new OpenLayers.Handler.MouseWheel(
- this, {up : this.wheelUp, down: this.wheelDown},
- OpenLayers.Util.extend(wheelOptions, this.mouseWheelOptions)
- );
- if (OpenLayers.Control.PinchZoom) {
- this.pinchZoom = new OpenLayers.Control.PinchZoom(
- OpenLayers.Util.extend(
- {map: this.map}, this.pinchZoomOptions));
- }
- },
-
- /**
- * Method: defaultClick
- *
- * Parameters:
- * evt - {Event}
- */
- defaultClick: function (evt) {
- if (evt.lastTouches && evt.lastTouches.length == 2) {
- this.map.zoomOut();
- }
- },
-
- /**
- * Method: defaultDblClick
- *
- * Parameters:
- * evt - {Event}
- */
- defaultDblClick: function (evt) {
- this.map.zoomTo(this.map.zoom + 1, evt.xy);
- },
-
- /**
- * Method: defaultDblRightClick
- *
- * Parameters:
- * evt - {Event}
- */
- defaultDblRightClick: function (evt) {
- this.map.zoomTo(this.map.zoom - 1, evt.xy);
- },
-
- /**
- * Method: wheelChange
- *
- * Parameters:
- * evt - {Event}
- * deltaZ - {Integer}
- */
- wheelChange: function(evt, deltaZ) {
- if (!this.map.fractionalZoom) {
- deltaZ = Math.round(deltaZ);
- }
- var currentZoom = this.map.getZoom(),
- newZoom = currentZoom + deltaZ;
- newZoom = Math.max(newZoom, 0);
- newZoom = Math.min(newZoom, this.map.getNumZoomLevels());
- if (newZoom === currentZoom) {
- return;
- }
- this.map.zoomTo(newZoom, evt.xy);
- },
-
- /**
- * Method: wheelUp
- * User spun scroll wheel up
- *
- * Parameters:
- * evt - {Event}
- * delta - {Integer}
- */
- wheelUp: function(evt, delta) {
- this.wheelChange(evt, delta || 1);
- },
-
- /**
- * Method: wheelDown
- * User spun scroll wheel down
- *
- * Parameters:
- * evt - {Event}
- * delta - {Integer}
- */
- wheelDown: function(evt, delta) {
- this.wheelChange(evt, delta || -1);
- },
-
- /**
- * Method: disableZoomBox
- */
- disableZoomBox : function() {
- this.zoomBoxEnabled = false;
- this.zoomBox.deactivate();
- },
-
- /**
- * Method: enableZoomBox
- */
- enableZoomBox : function() {
- this.zoomBoxEnabled = true;
- if (this.active) {
- this.zoomBox.activate();
- }
- },
-
- /**
- * Method: disableZoomWheel
- */
-
- disableZoomWheel : function() {
- this.zoomWheelEnabled = false;
- this.handlers.wheel.deactivate();
- },
-
- /**
- * Method: enableZoomWheel
- */
-
- enableZoomWheel : function() {
- this.zoomWheelEnabled = true;
- if (this.active) {
- this.handlers.wheel.activate();
- }
- },
-
- CLASS_NAME: "OpenLayers.Control.Navigation"
-});