X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/0494b8d9b9bb03ab6c22b34dae81261e3cd7e3e6..7a654f8d43fdb43d78b63d90528bed6e86b608cc:/examples/keynav/keynav.js diff --git a/examples/keynav/keynav.js b/examples/keynav/keynav.js new file mode 100644 index 00000000..0ac3ea55 --- /dev/null +++ b/examples/keynav/keynav.js @@ -0,0 +1,114 @@ +Ext.require([ + 'Ext.XTemplate', + 'Ext.util.KeyNav', + 'Ext.fx.*' +]); + +Ext.define('Board', { + constructor: function(size, activeCls){ + this.size = size; + this.activeCls = activeCls; + }, + + render: function(el){ + el = Ext.get(el); + + var tpl = Ext.create('Ext.XTemplate', + '', + '
{.}
', + '
', + '
'), + data = [], + i = 0, + max = this.size * this.size; + + for (; i < max; ++i) { + data.push(i + 1); + } + tpl.append(el, data); + this.cells = el.select('.square'); + }, + + getIndex: function(xy){ + return this.size * xy[0] + xy[1]; + }, + + constrain: function(x, y) { + x = Ext.Number.constrain(x, 0, this.size - 1); + y = Ext.Number.constrain(y, 0, this.size - 1); + return [x, y]; + }, + + setActive: function(x, y) { + var xy = this.constrain(x, y), + cell = this.cells.item(this.getIndex(xy)); + + cell.radioCls(this.activeCls); + this.active = xy; + }, + + setActiveCls: function(activeCls){ + this.cells.removeCls(this.activeCls); + this.activeCls = activeCls; + var active = this.active; + this.setActive(active[0], active[1]); + }, + + highlightActive: function(){ + var cell = this.cells.item(this.getIndex(this.active)); + Ext.create('Ext.fx.Anim', { + target: cell, + duration: 1000, + alternate: true, + iterations: 2, + to: { + backgroundColor: '#FFFF00' + }, + callback: function(){ + cell.setStyle('background-color', ''); + } + }); + }, + + moveUp: function(){ + var active = this.active; + this.setActive(active[0] - 1, active[1]); + }, + + moveDown: function(){ + var active = this.active; + this.setActive(active[0] + 1, active[1]); + }, + + moveLeft: function(){ + var active = this.active; + this.setActive(active[0], active[1] - 1); + }, + + moveRight: function(){ + var active = this.active; + this.setActive(active[0], active[1] + 1); + } +}); + +Ext.onReady(function(){ + + var cls = 'active-green'; + var board = new Board(4, cls); + board.render('board'); + board.setActive(0, 0); + + var nav = Ext.create('Ext.util.KeyNav', Ext.getDoc(), { + scope: board, + left: board.moveLeft, + up: board.moveUp, + right: board.moveRight, + down: board.moveDown, + space: board.highlightActive, + home: function(){ + cls = Ext.String.toggle(cls, 'active-green', 'active-red'); + board.setActiveCls(cls); + } + }); + +});