ToolTip.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:17k
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 */ /**
- * @class Ext.ToolTip
- * @extends Ext.Tip
- * A standard tooltip implementation for providing additional information when hovering over a target element.
- * @constructor
- * Create a new Tooltip
- * @param {Object} config The configuration options
- */
- Ext.ToolTip = Ext.extend(Ext.Tip, {
- /**
- * When a Tooltip is configured with the {@link #delegate} option to cause selected child elements of the {@link #target}
- * Element to each trigger a seperate show event, this property is set to the DOM element which triggered the show.
- * @type DOMElement
- * @property triggerElement
- */
- /**
- * @cfg {Mixed} target The target HTMLElement, Ext.Element or id to monitor for mouseover events to trigger
- * showing this ToolTip.
- */
- /**
- * @cfg {Boolean} autoHide True to automatically hide the tooltip after the mouse exits the target element
- * or after the {@link #dismissDelay} has expired if set (defaults to true). If {@link closable} = true a close
- * tool button will be rendered into the tooltip header.
- */
- /**
- * @cfg {Number} showDelay Delay in milliseconds before the tooltip displays after the mouse enters the
- * target element (defaults to 500)
- */
- showDelay: 500,
- /**
- * @cfg {Number} hideDelay Delay in milliseconds after the mouse exits the target element but before the
- * tooltip actually hides (defaults to 200). Set to 0 for the tooltip to hide immediately.
- */
- hideDelay: 200,
- /**
- * @cfg {Number} dismissDelay Delay in milliseconds before the tooltip automatically hides (defaults to 5000).
- * To disable automatic hiding, set dismissDelay = 0.
- */
- dismissDelay: 5000,
- /**
- * @cfg {Array} mouseOffset An XY offset from the mouse position where the tooltip should be shown (defaults to [15,18]).
- */
- /**
- * @cfg {Boolean} trackMouse True to have the tooltip follow the mouse as it moves over the target element (defaults to false).
- */
- trackMouse : false,
- /**
- * @cfg {Boolean} anchorToTarget True to anchor the tooltip to the target element, false to
- * anchor it relative to the mouse coordinates (defaults to true). When anchorToTarget is
- * true, use {@link #defaultAlign} to control tooltip alignment to the target element. When
- * anchorToTarget is false, use {@link #anchorPosition} instead to control alignment.
- */
- anchorToTarget: true,
- /**
- * @cfg {Number} anchorOffset A numeric pixel value used to offset the default position of the
- * anchor arrow (defaults to 0). When the anchor position is on the top or bottom of the tooltip,
- * anchorOffset will be used as a horizontal offset. Likewise, when the anchor position is on the
- * left or right side, anchorOffset will be used as a vertical offset.
- */
- anchorOffset: 0,
- /**
- * @cfg {String} delegate <p>Optional. A {@link Ext.DomQuery DomQuery} selector which allows selection of individual elements
- * within the {@link #target} element to trigger showing and hiding the ToolTip as the mouse moves within the target.</p>
- * <p>When specified, the child element of the target which caused a show event is placed into the {@link #triggerElement} property
- * before the ToolTip is shown.</p>
- * <p>This may be useful when a Component has regular, repeating elements in it, each of which need a Tooltip which contains
- * information specific to that element. For example:</p><pre><code>
- var myGrid = new Ext.grid.gridPanel(gridConfig);
- myGrid.on('render', function(grid) {
- var store = grid.getStore(); // Capture the Store.
- var view = grid.getView(); // Capture the GridView.
- myGrid.tip = new Ext.ToolTip({
- target: view.mainBody, // The overall target element.
- delegate: '.x-grid3-row', // Each grid row causes its own seperate show and hide.
- trackMouse: true, // Moving within the row should not hide the tip.
- renderTo: document.body, // Render immediately so that tip.body can be referenced prior to the first show.
- listeners: { // Change content dynamically depending on which element triggered the show.
- beforeshow: function updateTipBody(tip) {
- var rowIndex = view.findRowIndex(tip.triggerElement);
- tip.body.dom.innerHTML = "Over Record ID " + store.getAt(rowIndex).id;
- }
- }
- });
- });</code></pre>
- */
- // private
- targetCounter: 0,
- constrainPosition: false,
- // private
- initComponent: function(){
- Ext.ToolTip.superclass.initComponent.call(this);
- this.lastActive = new Date();
- this.initTarget(this.target);
- this.origAnchor = this.anchor;
- },
- // private
- onRender : function(ct, position){
- Ext.ToolTip.superclass.onRender.call(this, ct, position);
- this.anchorCls = 'x-tip-anchor-' + this.getAnchorPosition();
- this.anchorEl = this.el.createChild({
- cls: 'x-tip-anchor ' + this.anchorCls
- });
- },
- // private
- afterRender : function(){
- Ext.ToolTip.superclass.afterRender.call(this);
- this.anchorEl.setStyle('z-index', this.el.getZIndex() + 1);
- },
- /**
- * Binds this ToolTip to the specified element. The tooltip will be displayed when the mouse moves over the element.
- * @param {Mixed} t The Element, HtmlElement, or ID of an element to bind to
- */
- initTarget : function(target){
- var t;
- if((t = Ext.get(target))){
- if(this.target){
- this.target = Ext.get(this.target);
- this.target.un('mouseover', this.onTargetOver, this);
- this.target.un('mouseout', this.onTargetOut, this);
- this.target.un('mousemove', this.onMouseMove, this);
- }
- this.mon(t, {
- mouseover: this.onTargetOver,
- mouseout: this.onTargetOut,
- mousemove: this.onMouseMove,
- scope: this
- });
- this.target = t;
- }
- if(this.anchor){
- this.anchorTarget = this.target;
- }
- },
- // private
- onMouseMove : function(e){
- var t = this.delegate ? e.getTarget(this.delegate) : this.triggerElement = true;
- if (t) {
- this.targetXY = e.getXY();
- if (t === this.triggerElement) {
- if(!this.hidden && this.trackMouse){
- this.setPagePosition(this.getTargetXY());
- }
- } else {
- this.hide();
- this.lastActive = new Date(0);
- this.onTargetOver(e);
- }
- } else if (!this.closable && this.isVisible()) {
- this.hide();
- }
- },
- // private
- getTargetXY : function(){
- if(this.anchor){
- this.targetCounter++;
- var offsets = this.getOffsets();
- var xy = (this.anchorToTarget && !this.trackMouse) ?
- this.el.getAlignToXY(this.anchorTarget, this.getAnchorAlign()) :
- this.targetXY;
- var dw = Ext.lib.Dom.getViewWidth()-5;
- var dh = Ext.lib.Dom.getViewHeight()-5;
- var scrollX = (document.documentElement.scrollLeft || document.body.scrollLeft || 0)+5;
- var scrollY = (document.documentElement.scrollTop || document.body.scrollTop || 0)+5;
- var axy = [xy[0] + offsets[0], xy[1] + offsets[1]];
- var sz = this.getSize();
- this.anchorEl.removeClass(this.anchorCls);
- if(this.targetCounter < 2){
- if(axy[0] < scrollX){
- if(this.anchorToTarget){
- this.defaultAlign = 'l-r';
- if(this.mouseOffset){this.mouseOffset[0] *= -1;}
- }
- this.anchor = 'left';
- return this.getTargetXY();
- }
- if(axy[0]+sz.width > dw){
- if(this.anchorToTarget){
- this.defaultAlign = 'r-l';
- if(this.mouseOffset){this.mouseOffset[0] *= -1;}
- }
- this.anchor = 'right';
- return this.getTargetXY();
- }
- if(axy[1] < scrollY){
- if(this.anchorToTarget){
- this.defaultAlign = 't-b';
- if(this.mouseOffset){this.mouseOffset[1] *= -1;}
- }
- this.anchor = 'top';
- return this.getTargetXY();
- }
- if(axy[1]+sz.height > dh){
- if(this.anchorToTarget){
- this.defaultAlign = 'b-t';
- if(this.mouseOffset){this.mouseOffset[1] *= -1;}
- }
- this.anchor = 'bottom';
- return this.getTargetXY();
- }
- }
- this.anchorCls = 'x-tip-anchor-'+this.getAnchorPosition();
- this.anchorEl.addClass(this.anchorCls);
- this.targetCounter = 0;
- return axy;
- }else{
- var mouseOffset = this.getMouseOffset();
- return [this.targetXY[0]+mouseOffset[0], this.targetXY[1]+mouseOffset[1]];
- }
- },
- getMouseOffset : function(){
- var offset = this.anchor ? [0,0] : [15,18];
- if(this.mouseOffset){
- offset[0] += this.mouseOffset[0];
- offset[1] += this.mouseOffset[1];
- }
- return offset;
- },
- // private
- getAnchorPosition : function(){
- if(this.anchor){
- this.tipAnchor = this.anchor.charAt(0);
- }else{
- var m = this.defaultAlign.match(/^([a-z]+)-([a-z]+)(?)?$/);
- if(!m){
- throw "AnchorTip.defaultAlign is invalid";
- }
- this.tipAnchor = m[1].charAt(0);
- }
- switch(this.tipAnchor){
- case 't': return 'top';
- case 'b': return 'bottom';
- case 'r': return 'right';
- }
- return 'left';
- },
- // private
- getAnchorAlign : function(){
- switch(this.anchor){
- case 'top' : return 'tl-bl';
- case 'left' : return 'tl-tr';
- case 'right': return 'tr-tl';
- default : return 'bl-tl';
- }
- },
- // private
- getOffsets: function(){
- var offsets, ap = this.getAnchorPosition().charAt(0);
- if(this.anchorToTarget && !this.trackMouse){
- switch(ap){
- case 't':
- offsets = [0, 9];
- break;
- case 'b':
- offsets = [0, -13];
- break;
- case 'r':
- offsets = [-13, 0];
- break;
- default:
- offsets = [9, 0];
- break;
- }
- }else{
- switch(ap){
- case 't':
- offsets = [-15-this.anchorOffset, 30];
- break;
- case 'b':
- offsets = [-19-this.anchorOffset, -13-this.el.dom.offsetHeight];
- break;
- case 'r':
- offsets = [-15-this.el.dom.offsetWidth, -13-this.anchorOffset];
- break;
- default:
- offsets = [25, -13-this.anchorOffset];
- break;
- }
- }
- var mouseOffset = this.getMouseOffset();
- offsets[0] += mouseOffset[0];
- offsets[1] += mouseOffset[1];
- return offsets;
- },
- // private
- onTargetOver : function(e){
- if(this.disabled || e.within(this.target.dom, true)){
- return;
- }
- var t = e.getTarget(this.delegate);
- if (t) {
- this.triggerElement = t;
- this.clearTimer('hide');
- this.targetXY = e.getXY();
- this.delayShow();
- }
- },
- // private
- delayShow : function(){
- if(this.hidden && !this.showTimer){
- if(this.lastActive.getElapsed() < this.quickShowInterval){
- this.show();
- }else{
- this.showTimer = this.show.defer(this.showDelay, this);
- }
- }else if(!this.hidden && this.autoHide !== false){
- this.show();
- }
- },
- // private
- onTargetOut : function(e){
- if(this.disabled || e.within(this.target.dom, true)){
- return;
- }
- this.clearTimer('show');
- if(this.autoHide !== false){
- this.delayHide();
- }
- },
- // private
- delayHide : function(){
- if(!this.hidden && !this.hideTimer){
- this.hideTimer = this.hide.defer(this.hideDelay, this);
- }
- },
- /**
- * Hides this tooltip if visible.
- */
- hide: function(){
- this.clearTimer('dismiss');
- this.lastActive = new Date();
- if(this.anchorEl){
- this.anchorEl.hide();
- }
- Ext.ToolTip.superclass.hide.call(this);
- delete this.triggerElement;
- },
- /**
- * Shows this tooltip at the current event target XY position.
- */
- show : function(){
- if(this.anchor){
- // pre-show it off screen so that the el will have dimensions
- // for positioning calcs when getting xy next
- this.showAt([-1000,-1000]);
- this.origConstrainPosition = this.constrainPosition;
- this.constrainPosition = false;
- this.anchor = this.origAnchor;
- }
- this.showAt(this.getTargetXY());
- if(this.anchor){
- this.syncAnchor();
- this.anchorEl.show();
- this.constrainPosition = this.origConstrainPosition;
- }else{
- this.anchorEl.hide();
- }
- },
- // inherit docs
- showAt : function(xy){
- this.lastActive = new Date();
- this.clearTimers();
- Ext.ToolTip.superclass.showAt.call(this, xy);
- if(this.dismissDelay && this.autoHide !== false){
- this.dismissTimer = this.hide.defer(this.dismissDelay, this);
- }
- },
- // private
- syncAnchor : function(){
- var anchorPos, targetPos, offset;
- switch(this.tipAnchor.charAt(0)){
- case 't':
- anchorPos = 'b';
- targetPos = 'tl';
- offset = [20+this.anchorOffset, 2];
- break;
- case 'r':
- anchorPos = 'l';
- targetPos = 'tr';
- offset = [-2, 11+this.anchorOffset];
- break;
- case 'b':
- anchorPos = 't';
- targetPos = 'bl';
- offset = [20+this.anchorOffset, -2];
- break;
- default:
- anchorPos = 'r';
- targetPos = 'tl';
- offset = [2, 11+this.anchorOffset];
- break;
- }
- this.anchorEl.alignTo(this.el, anchorPos+'-'+targetPos, offset);
- },
- // private
- setPagePosition : function(x, y){
- Ext.ToolTip.superclass.setPagePosition.call(this, x, y);
- if(this.anchor){
- this.syncAnchor();
- }
- },
- // private
- clearTimer : function(name){
- name = name + 'Timer';
- clearTimeout(this[name]);
- delete this[name];
- },
- // private
- clearTimers : function(){
- this.clearTimer('show');
- this.clearTimer('dismiss');
- this.clearTimer('hide');
- },
- // private
- onShow : function(){
- Ext.ToolTip.superclass.onShow.call(this);
- Ext.getDoc().on('mousedown', this.onDocMouseDown, this);
- },
- // private
- onHide : function(){
- Ext.ToolTip.superclass.onHide.call(this);
- Ext.getDoc().un('mousedown', this.onDocMouseDown, this);
- },
- // private
- onDocMouseDown : function(e){
- if(this.autoHide !== true && !this.closable && !e.within(this.el.dom)){
- this.disable();
- this.enable.defer(100, this);
- }
- },
- // private
- onDisable : function(){
- this.clearTimers();
- this.hide();
- },
- // private
- adjustPosition : function(x, y){
- if(this.contstrainPosition){
- var ay = this.targetXY[1], h = this.getSize().height;
- if(y <= ay && (y+h) >= ay){
- y = ay-h-5;
- }
- }
- return {x : x, y: y};
- },
- // private
- onDestroy : function(){
- Ext.getDoc().un('mousedown', this.onDocMouseDown, this);
- Ext.ToolTip.superclass.onDestroy.call(this);
- }
- });