Spotlight.js
资源名称:ext-3.0.0.zip [点击查看]
上传用户:shuoshiled
上传日期:2018-01-28
资源大小:10124k
文件大小:4k
源码类别:
中间件编程
开发平台:
JavaScript
- /*! * Ext JS Library 3.0.0 * Copyright(c) 2006-2009 Ext JS, LLC * licensing@extjs.com * http://www.extjs.com/license */ Ext.ux.Spotlight = function(config){
- Ext.apply(this, config);
- }
- Ext.ux.Spotlight.prototype = {
- active : false,
- animate : true,
- duration: .25,
- easing:'easeNone',
- // private
- animated : false,
- createElements : function(){
- var bd = Ext.getBody();
- this.right = bd.createChild({cls:'x-spotlight'});
- this.left = bd.createChild({cls:'x-spotlight'});
- this.top = bd.createChild({cls:'x-spotlight'});
- this.bottom = bd.createChild({cls:'x-spotlight'});
- this.all = new Ext.CompositeElement([this.right, this.left, this.top, this.bottom]);
- },
- show : function(el, callback, scope){
- if(this.animated){
- this.show.defer(50, this, [el, callback, scope]);
- return;
- }
- this.el = Ext.get(el);
- if(!this.right){
- this.createElements();
- }
- if(!this.active){
- this.all.setDisplayed('');
- this.applyBounds(true, false);
- this.active = true;
- Ext.EventManager.onWindowResize(this.syncSize, this);
- this.applyBounds(false, this.animate, false, callback, scope);
- }else{
- this.applyBounds(false, false, false, callback, scope); // all these booleans look hideous
- }
- },
- hide : function(callback, scope){
- if(this.animated){
- this.hide.defer(50, this, [callback, scope]);
- return;
- }
- Ext.EventManager.removeResizeListener(this.syncSize, this);
- this.applyBounds(true, this.animate, true, callback, scope);
- },
- doHide : function(){
- this.active = false;
- this.all.setDisplayed(false);
- },
- syncSize : function(){
- this.applyBounds(false, false);
- },
- applyBounds : function(basePts, anim, doHide, callback, scope){
- var rg = this.el.getRegion();
- var dw = Ext.lib.Dom.getViewWidth(true);
- var dh = Ext.lib.Dom.getViewHeight(true);
- var c = 0, cb = false;
- if(anim){
- cb = {
- callback: function(){
- c++;
- if(c == 4){
- this.animated = false;
- if(doHide){
- this.doHide();
- }
- Ext.callback(callback, scope, [this]);
- }
- },
- scope: this,
- duration: this.duration,
- easing: this.easing
- };
- this.animated = true;
- }
- this.right.setBounds(
- rg.right,
- basePts ? dh : rg.top,
- dw - rg.right,
- basePts ? 0 : (dh - rg.top),
- cb);
- this.left.setBounds(
- 0,
- 0,
- rg.left,
- basePts ? 0 : rg.bottom,
- cb);
- this.top.setBounds(
- basePts ? dw : rg.left,
- 0,
- basePts ? 0 : dw - rg.left,
- rg.top,
- cb);
- this.bottom.setBounds(
- 0,
- rg.bottom,
- basePts ? 0 : rg.right,
- dh - rg.bottom,
- cb);
- if(!anim){
- if(doHide){
- this.doHide();
- }
- if(callback){
- Ext.callback(callback, scope, [this]);
- }
- }
- },
- destroy : function(){
- this.doHide();
- Ext.destroy(
- this.right,
- this.left,
- this.top,
- this.bottom);
- delete this.el;
- delete this.all;
- }
- };
- //backwards compat
- Ext.Spotlight = Ext.ux.Spotlight;