shubhadownloader
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JavaScript
/**
* 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 Trigger field directly, as it renders exactly like a combobox for which you
* can provide a custom implementation.
*
* For example:
*
* @example
* Ext.define('Ext.ux.CustomTrigger', {
* extend: 'Ext.form.field.Trigger',
* alias: 'widget.customtrigger',
*
* // override onTriggerClick
* onTriggerClick: function() {
* Ext.Msg.alert('Status', 'You clicked my trigger!');
* }
* });
*
* Ext.create('Ext.form.FormPanel', {
* title: 'Form with TriggerField',
* bodyPadding: 5,
* width: 350,
* renderTo: Ext.getBody(),
* items:[{
* xtype: 'customtrigger',
* fieldLabel: 'Sample Trigger',
* emptyText: 'click the trigger'
* }]
* });
*
* However, in general you will most likely want to use Trigger as the base class for a reusable component.
* {@link Ext.form.field.Date} and {@link Ext.form.field.ComboBox} are perfect examples of this.
*/
Ext.define('Ext.form.field.Trigger', {
extend:'Ext.form.field.Text',
alias: ['widget.triggerfield', 'widget.trigger'],
requires: ['Ext.DomHelper', 'Ext.util.ClickRepeater', 'Ext.layout.component.field.Trigger'],
alternateClassName: ['Ext.form.TriggerField', 'Ext.form.TwinTriggerField', 'Ext.form.Trigger'],
childEls: [
/**
* @property {Ext.CompositeElement} triggerEl
* A composite of all the trigger button elements. Only set after the field has been rendered.
*/
{ name: 'triggerCell', select: '.' + Ext.baseCSSPrefix + 'trigger-cell' },
{ name: 'triggerEl', select: '.' + Ext.baseCSSPrefix + 'form-trigger' },
/**
* @property {Ext.Element} triggerWrap
* A reference to the `TABLE` element which encapsulates the input field and all trigger button(s). Only set after the field has been rendered.
*/
'triggerWrap',
/**
* @property {Ext.Element} inputCell
* A reference to the `TD` element wrapping the input element. Only set after the field has been rendered.
*/
'inputCell'
],
/**
* @cfg {String} triggerCls
* An additional CSS class used to style the trigger button. The trigger will always get the {@link #triggerBaseCls}
* by default and triggerCls will be **appended** if specified.
*/
/**
* @cfg
* The base CSS class that is always added to the trigger button. The {@link #triggerCls} will be appended in
* addition to this class.
*/
triggerBaseCls: Ext.baseCSSPrefix + 'form-trigger',
/**
* @cfg
* The CSS class that is added to the div wrapping the trigger button(s).
*/
triggerWrapCls: Ext.baseCSSPrefix + 'form-trigger-wrap',
/**
* @cfg
* The CSS class that is added to the text field when component is read-only or not editable.
*/
triggerNoEditCls: Ext.baseCSSPrefix + 'trigger-noedit',
/**
* @cfg {Boolean} hideTrigger
* true to hide the trigger element and display only the base text field
*/
hideTrigger: false,
/**
* @cfg {Boolean} editable
* false to prevent the user from typing text directly into the field; the field can only have its value set via an
* action invoked by the trigger.
*/
editable: true,
/**
* @cfg {Boolean} readOnly
* true to prevent the user from changing the field, and hides the trigger. Supercedes the editable and hideTrigger
* options if the value is true.
*/
readOnly: false,
/**
* @cfg {Boolean} [selectOnFocus=false]
* true to select any existing text in the field immediately on focus. Only applies when
* {@link #editable editable} = true
*/
/**
* @cfg {Boolean} repeatTriggerClick
* true to attach a {@link Ext.util.ClickRepeater click repeater} to the trigger.
*/
repeatTriggerClick: false,
/**
* @method autoSize
* @private
*/
autoSize: Ext.emptyFn,
// private
monitorTab: true,
// private
mimicing: false,
// private
triggerIndexRe: /trigger-index-(\d+)/,
componentLayout: 'triggerfield',
initComponent: function() {
this.wrapFocusCls = this.triggerWrapCls + '-focus';
this.callParent(arguments);
},
getSubTplMarkup: function() {
var me = this,
field = me.callParent(arguments);
return '<table id="' + me.id + '-triggerWrap" class="' + Ext.baseCSSPrefix + 'form-trigger-wrap" cellpadding="0" cellspacing="0"><tbody><tr>' +
'<td id="' + me.id + '-inputCell" class="' + Ext.baseCSSPrefix + 'form-trigger-input-cell">' + field + '</td>' +
me.getTriggerMarkup() +
'</tr></tbody></table>';
},
getSubTplData: function(){
var me = this,
data = me.callParent(),
readOnly = me.readOnly === true,
editable = me.editable !== false;
return Ext.apply(data, {
editableCls: (readOnly || !editable) ? ' ' + me.triggerNoEditCls : '',
readOnly: !editable || readOnly
});
},
getLabelableRenderData: function() {
var me = this,
triggerWrapCls = me.triggerWrapCls,
result = me.callParent(arguments);
return Ext.applyIf(result, {
triggerWrapCls: triggerWrapCls,
triggerMarkup: me.getTriggerMarkup()
});
},
getTriggerMarkup: function() {
var me = this,
i = 0,
hideTrigger = (me.readOnly || me.hideTrigger),
triggerCls,
triggerBaseCls = me.triggerBaseCls,
triggerConfigs = [];
// TODO this trigger<n>Cls API design doesn't feel clean, especially where it butts up against the
// single triggerCls config. Should rethink this, perhaps something more structured like a list of
// trigger config objects that hold cls, handler, etc.
// triggerCls is a synonym for trigger1Cls, so copy it.
if (!me.trigger1Cls) {
me.trigger1Cls = me.triggerCls;
}
// Create as many trigger elements as we have trigger<n>Cls configs, but always at least one
for (i = 0; (triggerCls = me['trigger' + (i + 1) + 'Cls']) || i < 1; i++) {
triggerConfigs.push({
tag: 'td',
valign: 'top',
cls: Ext.baseCSSPrefix + 'trigger-cell',
style: 'width:' + me.triggerWidth + (hideTrigger ? 'px;display:none' : 'px'),
cn: {
cls: [Ext.baseCSSPrefix + 'trigger-index-' + i, triggerBaseCls, triggerCls].join(' '),
role: 'button'
}
});
}
triggerConfigs[i - 1].cn.cls += ' ' + triggerBaseCls + '-last';
return Ext.DomHelper.markup(triggerConfigs);
},
disableCheck: function() {
return !this.disabled;
},
// private
beforeRender: function() {
var me = this,
triggerBaseCls = me.triggerBaseCls,
tempEl;
/**
* @property {Number} triggerWidth
* Width of the trigger element. Unless set explicitly, it will be
* automatically calculated through creating a temporary element
* on page. (That will be done just once per app run.)
* @private
*/
if (!me.triggerWidth) {
tempEl = Ext.resetElement.createChild({
style: 'position: absolute;',
cls: Ext.baseCSSPrefix + 'form-trigger'
});
Ext.form.field.Trigger.prototype.triggerWidth = tempEl.getWidth();
tempEl.remove();
}
me.callParent();
if (triggerBaseCls != Ext.baseCSSPrefix + 'form-trigger') {
// we may need to change the selectors by which we extract trigger elements if is triggerBaseCls isn't the value we
// stuck in childEls
me.addChildEls({ name: 'triggerEl', select: '.' + triggerBaseCls });
}
// these start correct in the fieldSubTpl:
me.lastTriggerStateFlags = me.getTriggerStateFlags();
},
onRender: function() {
var me = this;
me.callParent(arguments);
me.doc = Ext.getDoc();
me.initTrigger();
me.triggerEl.unselectable();
},
/**
* Get the total width of the trigger button area.
* @return {Number} The total trigger width
*/
getTriggerWidth: function() {
var me = this,
totalTriggerWidth = 0;
if (me.triggerWrap && !me.hideTrigger && !me.readOnly) {
totalTriggerWidth = me.triggerEl.getCount() * me.triggerWidth;
}
return totalTriggerWidth;
},
setHideTrigger: function(hideTrigger) {
if (hideTrigger != this.hideTrigger) {
this.hideTrigger = hideTrigger;
this.updateLayout();
}
},
/**
* Sets the editable state of this field. This method is the runtime equivalent of setting the 'editable' config
* option at config time.
* @param {Boolean} editable True to allow the user to directly edit the field text. If false is passed, the user
* will only be able to modify the field using the trigger. Will also add a click event to the text field which
* will call the trigger.
*/
setEditable: function(editable) {
if (editable != this.editable) {
this.editable = editable;
this.updateLayout();
}
},
/**
* Sets the read-only state of this field. This method is the runtime equivalent of setting the 'readOnly' config
* option at config time.
* @param {Boolean} readOnly True to prevent the user changing the field and explicitly hide the trigger. Setting
* this to true will supercede settings editable and hideTrigger. Setting this to false will defer back to editable
* and hideTrigger.
*/
setReadOnly: function(readOnly) {
if (readOnly != this.readOnly) {
this.readOnly = readOnly;
this.updateLayout();
}
},
// private
initTrigger: function() {
var me = this,
triggerWrap = me.triggerWrap,
triggerEl = me.triggerEl,
disableCheck = me.disableCheck,
els, eLen, el, e, idx;
if (me.repeatTriggerClick) {
me.triggerRepeater = new Ext.util.ClickRepeater(triggerWrap, {
preventDefault: true,
handler: me.onTriggerWrapClick,
listeners: {
mouseup: me.onTriggerWrapMouseup,
scope: me
},
scope: me
});
} else {
me.mon(triggerWrap, {
click: me.onTriggerWrapClick,
mouseup: me.onTriggerWrapMouseup,
scope: me
});
}
triggerEl.setVisibilityMode(Ext.Element.DISPLAY);
triggerEl.addClsOnOver(me.triggerBaseCls + '-over', disableCheck, me);
els = triggerEl.elements;
eLen = els.length;
for (e = 0; e < eLen; e++) {
el = els[e];
idx = e+1;
el.addClsOnOver(me['trigger' + (idx) + 'Cls'] + '-over', disableCheck, me);
el.addClsOnClick(me['trigger' + (idx) + 'Cls'] + '-click', disableCheck, me);
}
triggerEl.addClsOnClick(me.triggerBaseCls + '-click', disableCheck, me);
},
// private
onDestroy: function() {
var me = this;
Ext.destroyMembers(me, 'triggerRepeater', 'triggerWrap', 'triggerEl');
delete me.doc;
me.callParent();
},
// private
onFocus: function() {
var me = this;
me.callParent(arguments);
if (!me.mimicing) {
me.bodyEl.addCls(me.wrapFocusCls);
me.mimicing = true;
me.mon(me.doc, 'mousedown', me.mimicBlur, me, {
delay: 10
});
if (me.monitorTab) {
me.on('specialkey', me.checkTab, me);
}
}
},
// private
checkTab: function(me, e) {
if (!this.ignoreMonitorTab && e.getKey() == e.TAB) {
this.triggerBlur();
}
},
/**
* Returns a set of flags that describe the trigger state. These are just used to easily
* determine if the DOM is out-of-sync with the component's properties.
* @private
*/
getTriggerStateFlags: function () {
var me = this,
state = 0;
if (me.readOnly) {
state += 1;
}
if (me.editable) {
state += 2;
}
if (me.hideTrigger) {
state += 4;
}
return state;
},
/**
* @private
* The default blur handling must not occur for a TriggerField, implementing this template method as emptyFn disables that.
* Instead the tab key is monitored, and the superclass's onBlur is called when tab is detected
*/
onBlur: Ext.emptyFn,
// private
mimicBlur: function(e) {
if (!this.isDestroyed && !this.bodyEl.contains(e.target) && this.validateBlur(e)) {
this.triggerBlur(e);
}
},
// private
triggerBlur: function(e) {
var me = this;
me.mimicing = false;
me.mun(me.doc, 'mousedown', me.mimicBlur, me);
if (me.monitorTab && me.inputEl) {
me.un('specialkey', me.checkTab, me);
}
Ext.form.field.Trigger.superclass.onBlur.call(me, e);
if (me.bodyEl) {
me.bodyEl.removeCls(me.wrapFocusCls);
}
},
// private
// This should be overridden by any subclass that needs to check whether or not the field can be blurred.
validateBlur: function(e) {
return true;
},
// private
// process clicks upon triggers.
// determine which trigger index, and dispatch to the appropriate click handler
onTriggerWrapClick: function() {
var me = this,
targetEl, match,
triggerClickMethod,
event;
event = arguments[me.triggerRepeater ? 1 : 0];
if (event && !me.readOnly && !me.disabled) {
targetEl = event.getTarget('.' + me.triggerBaseCls, null);
match = targetEl && targetEl.className.match(me.triggerIndexRe);
if (match) {
triggerClickMethod = me['onTrigger' + (parseInt(match[1], 10) + 1) + 'Click'] || me.onTriggerClick;
if (triggerClickMethod) {
triggerClickMethod.call(me, event);
}
}
}
},
// private
// Handle trigger mouse up gesture. To be implemented in subclasses.
// Currently the Spinner subclass refocuses the input element upon end of spin.
onTriggerWrapMouseup: Ext.emptyFn,
/**
* @method onTriggerClick
* @protected
* 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.field.ComboBox and Ext.form.field.Date for sample implementations.
* @param {Ext.EventObject} e
*/
onTriggerClick: Ext.emptyFn
/**
* @cfg {Boolean} grow
* @private
*/
/**
* @cfg {Number} growMin
* @private
*/
/**
* @cfg {Number} growMax
* @private
*/
});