TriggerField.js
资源名称:ext-3.0.0.zip [点击查看]
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上传日期:2018-01-28
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文件大小:12k
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.form.TriggerField
- * @extends Ext.form.TextField
- * Provides a convenient wrapper for TextFields that adds a clickable trigger button (looks like a combobox by default).
- * The trigger has no default action, so you must assign a function to implement the trigger click handler by
- * overriding {@link #onTriggerClick}. You can create a TriggerField directly, as it renders exactly like a combobox
- * for which you can provide a custom implementation. For example:
- * <pre><code>
- var trigger = new Ext.form.TriggerField();
- trigger.onTriggerClick = myTriggerFn;
- trigger.applyToMarkup('my-field');
- </code></pre>
- *
- * However, in general you will most likely want to use TriggerField as the base class for a reusable component.
- * {@link Ext.form.DateField} and {@link Ext.form.ComboBox} are perfect examples of this.
- *
- * @constructor
- * Create a new TriggerField.
- * @param {Object} config Configuration options (valid {@Ext.form.TextField} config options will also be applied
- * to the base TextField)
- * @xtype trigger
- */
- Ext.form.TriggerField = Ext.extend(Ext.form.TextField, {
- /**
- * @cfg {String} triggerClass
- * An additional CSS class used to style the trigger button. The trigger will always get the
- * class <tt>'x-form-trigger'</tt> by default and <tt>triggerClass</tt> will be <b>appended</b> if specified.
- */
- /**
- * @cfg {Mixed} triggerConfig
- * <p>A {@link Ext.DomHelper DomHelper} config object specifying the structure of the
- * trigger element for this Field. (Optional).</p>
- * <p>Specify this when you need a customized element to act as the trigger button for a TriggerField.</p>
- * <p>Note that when using this option, it is the developer's responsibility to ensure correct sizing, positioning
- * and appearance of the trigger. Defaults to:</p>
- * <pre><code>{tag: "img", src: Ext.BLANK_IMAGE_URL, cls: "x-form-trigger " + this.triggerClass}</code></pre>
- */
- /**
- * @cfg {String/Object} autoCreate <p>A {@link Ext.DomHelper DomHelper} element spec, or true for a default
- * element spec. Used to create the {@link Ext.Component#getEl Element} which will encapsulate this Component.
- * See <tt>{@link Ext.Component#autoEl autoEl}</tt> for details. Defaults to:</p>
- * <pre><code>{tag: "input", type: "text", size: "16", autocomplete: "off"}</code></pre>
- */
- defaultAutoCreate : {tag: "input", type: "text", size: "16", autocomplete: "off"},
- /**
- * @cfg {Boolean} hideTrigger <tt>true</tt> to hide the trigger element and display only the base
- * text field (defaults to <tt>false</tt>)
- */
- hideTrigger:false,
- /**
- * @cfg {Boolean} editable <tt>false</tt> to prevent the user from typing text directly into the field,
- * the field will only respond to a click on the trigger to set the value. (defaults to <tt>true</tt>)
- */
- editable: true,
- /**
- * @cfg {String} wrapFocusClass The class added to the to the wrap of the trigger element. Defaults to
- * <tt>x-trigger-wrap-focus</tt>.
- */
- wrapFocusClass: 'x-trigger-wrap-focus',
- /**
- * @hide
- * @method autoSize
- */
- autoSize: Ext.emptyFn,
- // private
- monitorTab : true,
- // private
- deferHeight : true,
- // private
- mimicing : false,
- actionMode: 'wrap',
- // private
- onResize : function(w, h){
- Ext.form.TriggerField.superclass.onResize.call(this, w, h);
- if(typeof w == 'number'){
- this.el.setWidth(this.adjustWidth('input', w - this.trigger.getWidth()));
- }
- this.wrap.setWidth(this.el.getWidth()+this.trigger.getWidth());
- },
- // private
- adjustSize : Ext.BoxComponent.prototype.adjustSize,
- // private
- getResizeEl : function(){
- return this.wrap;
- },
- // private
- getPositionEl : function(){
- return this.wrap;
- },
- // private
- alignErrorIcon : function(){
- if(this.wrap){
- this.errorIcon.alignTo(this.wrap, 'tl-tr', [2, 0]);
- }
- },
- // private
- onRender : function(ct, position){
- Ext.form.TriggerField.superclass.onRender.call(this, ct, position);
- this.wrap = this.el.wrap({cls: 'x-form-field-wrap x-form-field-trigger-wrap'});
- this.trigger = this.wrap.createChild(this.triggerConfig ||
- {tag: "img", src: Ext.BLANK_IMAGE_URL, cls: "x-form-trigger " + this.triggerClass});
- if(this.hideTrigger){
- this.trigger.setDisplayed(false);
- }
- this.initTrigger();
- if(!this.width){
- this.wrap.setWidth(this.el.getWidth()+this.trigger.getWidth());
- }
- if(!this.editable){
- this.editable = true;
- this.setEditable(false);
- }
- },
- afterRender : function(){
- Ext.form.TriggerField.superclass.afterRender.call(this);
- },
- // private
- initTrigger : function(){
- this.mon(this.trigger, 'click', this.onTriggerClick, this, {preventDefault:true});
- this.trigger.addClassOnOver('x-form-trigger-over');
- this.trigger.addClassOnClick('x-form-trigger-click');
- },
- // private
- onDestroy : function(){
- Ext.destroy(this.trigger, this.wrap);
- if (this.mimicing){
- Ext.get(Ext.isIE ? document.body : document).un("mousedown", this.mimicBlur, this);
- }
- Ext.form.TriggerField.superclass.onDestroy.call(this);
- },
- // private
- onFocus : function(){
- Ext.form.TriggerField.superclass.onFocus.call(this);
- if(!this.mimicing){
- this.wrap.addClass(this.wrapFocusClass);
- this.mimicing = true;
- Ext.get(Ext.isIE ? document.body : document).on("mousedown", this.mimicBlur, this, {delay: 10});
- if(this.monitorTab){
- this.el.on('keydown', this.checkTab, this);
- }
- }
- },
- // private
- checkTab : function(e){
- if(e.getKey() == e.TAB){
- this.triggerBlur();
- }
- },
- // private
- onBlur : function(){
- // do nothing
- },
- // private
- mimicBlur : function(e){
- if(!this.wrap.contains(e.target) && this.validateBlur(e)){
- this.triggerBlur();
- }
- },
- // private
- triggerBlur : function(){
- this.mimicing = false;
- Ext.get(Ext.isIE ? document.body : document).un("mousedown", this.mimicBlur, this);
- if(this.monitorTab && this.el){
- this.el.un("keydown", this.checkTab, this);
- }
- Ext.form.TriggerField.superclass.onBlur.call(this);
- if(this.wrap){
- this.wrap.removeClass(this.wrapFocusClass);
- }
- },
- beforeBlur : Ext.emptyFn,
- /**
- * Allow or prevent the user from directly editing the field text. If false is passed,
- * the user will only be able to modify the field using the trigger. This method
- * is the runtime equivalent of setting the 'editable' config option at config time.
- * @param {Boolean} value True to allow the user to directly edit the field text
- */
- setEditable : function(value){
- if(value == this.editable){
- return;
- }
- this.editable = value;
- if(!value){
- this.el.addClass('x-trigger-noedit').on('click', this.onTriggerClick, this).dom.setAttribute('readOnly', true);
- }else{
- this.el.removeClass('x-trigger-noedit').un('click', this.onTriggerClick, this).dom.removeAttribute('readOnly');
- }
- },
- // private
- // This should be overriden by any subclass that needs to check whether or not the field can be blurred.
- validateBlur : function(e){
- return true;
- },
- /**
- * The function that should handle the trigger's click event. This method does nothing by default
- * until overridden by an implementing function. See Ext.form.ComboBox and Ext.form.DateField for
- * sample implementations.
- * @method
- * @param {EventObject} e
- */
- onTriggerClick : Ext.emptyFn
- /**
- * @cfg {Boolean} grow @hide
- */
- /**
- * @cfg {Number} growMin @hide
- */
- /**
- * @cfg {Number} growMax @hide
- */
- });
- /**
- * @class Ext.form.TwinTriggerField
- * @extends Ext.form.TriggerField
- * TwinTriggerField is not a public class to be used directly. It is meant as an abstract base class
- * to be extended by an implementing class. For an example of implementing this class, see the custom
- * SearchField implementation here:
- * <a href="http://extjs.com/deploy/ext/examples/form/custom.html">http://extjs.com/deploy/ext/examples/form/custom.html</a>
- */
- Ext.form.TwinTriggerField = Ext.extend(Ext.form.TriggerField, {
- /**
- * @cfg {Mixed} triggerConfig
- * <p>A {@link Ext.DomHelper DomHelper} config object specifying the structure of the trigger elements
- * for this Field. (Optional).</p>
- * <p>Specify this when you need a customized element to contain the two trigger elements for this Field.
- * Each trigger element must be marked by the CSS class <tt>x-form-trigger</tt> (also see
- * <tt>{@link #trigger1Class}</tt> and <tt>{@link #trigger2Class}</tt>).</p>
- * <p>Note that when using this option, it is the developer's responsibility to ensure correct sizing,
- * positioning and appearance of the triggers.</p>
- */
- /**
- * @cfg {String} trigger1Class
- * An additional CSS class used to style the trigger button. The trigger will always get the
- * class <tt>'x-form-trigger'</tt> by default and <tt>triggerClass</tt> will be <b>appended</b> if specified.
- */
- /**
- * @cfg {String} trigger2Class
- * An additional CSS class used to style the trigger button. The trigger will always get the
- * class <tt>'x-form-trigger'</tt> by default and <tt>triggerClass</tt> will be <b>appended</b> if specified.
- */
- initComponent : function(){
- Ext.form.TwinTriggerField.superclass.initComponent.call(this);
- this.triggerConfig = {
- tag:'span', cls:'x-form-twin-triggers', cn:[
- {tag: "img", src: Ext.BLANK_IMAGE_URL, cls: "x-form-trigger " + this.trigger1Class},
- {tag: "img", src: Ext.BLANK_IMAGE_URL, cls: "x-form-trigger " + this.trigger2Class}
- ]};
- },
- getTrigger : function(index){
- return this.triggers[index];
- },
- initTrigger : function(){
- var ts = this.trigger.select('.x-form-trigger', true);
- this.wrap.setStyle('overflow', 'hidden');
- var triggerField = this;
- ts.each(function(t, all, index){
- t.hide = function(){
- var w = triggerField.wrap.getWidth();
- this.dom.style.display = 'none';
- triggerField.el.setWidth(w-triggerField.trigger.getWidth());
- };
- t.show = function(){
- var w = triggerField.wrap.getWidth();
- this.dom.style.display = '';
- triggerField.el.setWidth(w-triggerField.trigger.getWidth());
- };
- var triggerIndex = 'Trigger'+(index+1);
- if(this['hide'+triggerIndex]){
- t.dom.style.display = 'none';
- }
- this.mon(t, 'click', this['on'+triggerIndex+'Click'], this, {preventDefault:true});
- t.addClassOnOver('x-form-trigger-over');
- t.addClassOnClick('x-form-trigger-click');
- }, this);
- this.triggers = ts.elements;
- },
- /**
- * The function that should handle the trigger's click event. This method does nothing by default
- * until overridden by an implementing function. See {@link Ext.form.TriggerField#onTriggerClick}
- * for additional information.
- * @method
- * @param {EventObject} e
- */
- onTrigger1Click : Ext.emptyFn,
- /**
- * The function that should handle the trigger's click event. This method does nothing by default
- * until overridden by an implementing function. See {@link Ext.form.TriggerField#onTriggerClick}
- * for additional information.
- * @method
- * @param {EventObject} e
- */
- onTrigger2Click : Ext.emptyFn
- });
- Ext.reg('trigger', Ext.form.TriggerField);