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author | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
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committer | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
commit | ea346a785dc1b3f7c156f6fc33da634e1f1a627b (patch) | |
tree | af67530553d20b6e82ad60fd79593e9c4abf5565 /misc/openlayers/lib/OpenLayers/Control/KeyboardDefaults.js | |
parent | 59741cd535c47f25971bf8c32b25da25ceadc6d5 (diff) | |
download | postrunner-0.0.4.zip |
Adding jquery, flot and openlayers to be included with the GEM.v0.0.4
Diffstat (limited to 'misc/openlayers/lib/OpenLayers/Control/KeyboardDefaults.js')
-rw-r--r-- | misc/openlayers/lib/OpenLayers/Control/KeyboardDefaults.js | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/misc/openlayers/lib/OpenLayers/Control/KeyboardDefaults.js b/misc/openlayers/lib/OpenLayers/Control/KeyboardDefaults.js new file mode 100644 index 0000000..3af8831 --- /dev/null +++ b/misc/openlayers/lib/OpenLayers/Control/KeyboardDefaults.js @@ -0,0 +1,142 @@ +/* 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.js + * @requires OpenLayers/Handler/Keyboard.js + * @requires OpenLayers/Events.js + */ + +/** + * Class: OpenLayers.Control.KeyboardDefaults + * The KeyboardDefaults control adds panning and zooming functions, controlled + * with the keyboard. By default arrow keys pan, +/- keys zoom & Page Up/Page + * Down/Home/End scroll by three quarters of a page. + * + * This control has no visible appearance. + * + * Inherits from: + * - <OpenLayers.Control> + */ +OpenLayers.Control.KeyboardDefaults = OpenLayers.Class(OpenLayers.Control, { + + /** + * APIProperty: autoActivate + * {Boolean} Activate the control when it is added to a map. Default is + * true. + */ + autoActivate: true, + + /** + * APIProperty: slideFactor + * Pixels to slide by. + */ + slideFactor: 75, + + /** + * APIProperty: observeElement + * {DOMelement|String} The DOM element to handle keys for. You + * can use the map div here, to have the navigation keys + * work when the map div has the focus. If undefined the + * document is used. + */ + observeElement: null, + + /** + * Constructor: OpenLayers.Control.KeyboardDefaults + */ + + /** + * Method: draw + * Create handler. + */ + draw: function() { + var observeElement = this.observeElement || document; + this.handler = new OpenLayers.Handler.Keyboard( this, + {"keydown": this.defaultKeyPress}, + {observeElement: observeElement} + ); + }, + + /** + * Method: defaultKeyPress + * When handling the key event, we only use evt.keyCode. This holds + * some drawbacks, though we get around them below. When interpretting + * the keycodes below (including the comments associated with them), + * consult the URL below. For instance, the Safari browser returns + * "IE keycodes", and so is supported by any keycode labeled "IE". + * + * Very informative URL: + * http://unixpapa.com/js/key.html + * + * Parameters: + * evt - {Event} + */ + defaultKeyPress: function (evt) { + var size, handled = true; + + var target = OpenLayers.Event.element(evt); + if (target && + (target.tagName == 'INPUT' || + target.tagName == 'TEXTAREA' || + target.tagName == 'SELECT')) { + return; + } + + switch (evt.keyCode) { + case OpenLayers.Event.KEY_LEFT: + this.map.pan(-this.slideFactor, 0); + break; + case OpenLayers.Event.KEY_RIGHT: + this.map.pan(this.slideFactor, 0); + break; + case OpenLayers.Event.KEY_UP: + this.map.pan(0, -this.slideFactor); + break; + case OpenLayers.Event.KEY_DOWN: + this.map.pan(0, this.slideFactor); + break; + + case 33: // Page Up. Same in all browsers. + size = this.map.getSize(); + this.map.pan(0, -0.75*size.h); + break; + case 34: // Page Down. Same in all browsers. + size = this.map.getSize(); + this.map.pan(0, 0.75*size.h); + break; + case 35: // End. Same in all browsers. + size = this.map.getSize(); + this.map.pan(0.75*size.w, 0); + break; + case 36: // Home. Same in all browsers. + size = this.map.getSize(); + this.map.pan(-0.75*size.w, 0); + break; + + case 43: // +/= (ASCII), keypad + (ASCII, Opera) + case 61: // +/= (Mozilla, Opera, some ASCII) + case 187: // +/= (IE) + case 107: // keypad + (IE, Mozilla) + this.map.zoomIn(); + break; + case 45: // -/_ (ASCII, Opera), keypad - (ASCII, Opera) + case 109: // -/_ (Mozilla), keypad - (Mozilla, IE) + case 189: // -/_ (IE) + case 95: // -/_ (some ASCII) + this.map.zoomOut(); + break; + default: + handled = false; + } + if (handled) { + // prevent browser default not to move the page + // when moving the page with the keyboard + OpenLayers.Event.stop(evt); + } + }, + + CLASS_NAME: "OpenLayers.Control.KeyboardDefaults" +}); |