ttrss/lib/dijit/form/TextBox.js

428 lines
15 KiB
JavaScript

/*
Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
Available via Academic Free License >= 2.1 OR the modified BSD license.
see: http://dojotoolkit.org/license for details
*/
if(!dojo._hasResource["dijit.form.TextBox"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dijit.form.TextBox"] = true;
dojo.provide("dijit.form.TextBox");
dojo.require("dijit.form._FormWidget");
dojo.declare(
"dijit.form.TextBox",
dijit.form._FormValueWidget,
{
// summary:
// A base class for textbox form inputs
// trim: Boolean
// Removes leading and trailing whitespace if true. Default is false.
trim: false,
// uppercase: Boolean
// Converts all characters to uppercase if true. Default is false.
uppercase: false,
// lowercase: Boolean
// Converts all characters to lowercase if true. Default is false.
lowercase: false,
// propercase: Boolean
// Converts the first character of each word to uppercase if true.
propercase: false,
// maxLength: String
// HTML INPUT tag maxLength declaration.
maxLength: "",
// selectOnClick: [const] Boolean
// If true, all text will be selected when focused with mouse
selectOnClick: false,
// placeHolder: String
// Defines a hint to help users fill out the input field (as defined in HTML 5).
// This should only contain plain text (no html markup).
placeHolder: "",
templateString: dojo.cache("dijit.form", "templates/TextBox.html", "<div class=\"dijit dijitReset dijitInline dijitLeft\" id=\"widget_${id}\" role=\"presentation\"\n\t><div class=\"dijitReset dijitInputField dijitInputContainer\"\n\t\t><input class=\"dijitReset dijitInputInner\" dojoAttachPoint='textbox,focusNode' autocomplete=\"off\"\n\t\t\t${!nameAttrSetting} type='${type}'\n\t/></div\n></div>\n"),
_singleNodeTemplate: '<input class="dijit dijitReset dijitLeft dijitInputField" dojoAttachPoint="textbox,focusNode" autocomplete="off" type="${type}" ${!nameAttrSetting} />',
_buttonInputDisabled: dojo.isIE ? "disabled" : "", // allows IE to disallow focus, but Firefox cannot be disabled for mousedown events
baseClass: "dijitTextBox",
attributeMap: dojo.delegate(dijit.form._FormValueWidget.prototype.attributeMap, {
maxLength: "focusNode"
}),
postMixInProperties: function(){
var type = this.type.toLowerCase();
if(this.templateString && this.templateString.toLowerCase() == "input" || ((type == "hidden" || type == "file") && this.templateString == dijit.form.TextBox.prototype.templateString)){
this.templateString = this._singleNodeTemplate;
}
this.inherited(arguments);
},
_setPlaceHolderAttr: function(v){
this._set("placeHolder", v);
if(!this._phspan){
this._attachPoints.push('_phspan');
/* dijitInputField class gives placeHolder same padding as the input field
* parent node already has dijitInputField class but it doesn't affect this <span>
* since it's position: absolute.
*/
this._phspan = dojo.create('span',{className:'dijitPlaceHolder dijitInputField'},this.textbox,'after');
}
this._phspan.innerHTML="";
this._phspan.appendChild(document.createTextNode(v));
this._updatePlaceHolder();
},
_updatePlaceHolder: function(){
if(this._phspan){
this._phspan.style.display=(this.placeHolder&&!this._focused&&!this.textbox.value)?"":"none";
}
},
_getValueAttr: function(){
// summary:
// Hook so get('value') works as we like.
// description:
// For `dijit.form.TextBox` this basically returns the value of the <input>.
//
// For `dijit.form.MappedTextBox` subclasses, which have both
// a "displayed value" and a separate "submit value",
// This treats the "displayed value" as the master value, computing the
// submit value from it via this.parse().
return this.parse(this.get('displayedValue'), this.constraints);
},
_setValueAttr: function(value, /*Boolean?*/ priorityChange, /*String?*/ formattedValue){
// summary:
// Hook so set('value', ...) works.
//
// description:
// Sets the value of the widget to "value" which can be of
// any type as determined by the widget.
//
// value:
// The visual element value is also set to a corresponding,
// but not necessarily the same, value.
//
// formattedValue:
// If specified, used to set the visual element value,
// otherwise a computed visual value is used.
//
// priorityChange:
// If true, an onChange event is fired immediately instead of
// waiting for the next blur event.
var filteredValue;
if(value !== undefined){
// TODO: this is calling filter() on both the display value and the actual value.
// I added a comment to the filter() definition about this, but it should be changed.
filteredValue = this.filter(value);
if(typeof formattedValue != "string"){
if(filteredValue !== null && ((typeof filteredValue != "number") || !isNaN(filteredValue))){
formattedValue = this.filter(this.format(filteredValue, this.constraints));
}else{ formattedValue = ''; }
}
}
if(formattedValue != null && formattedValue != undefined && ((typeof formattedValue) != "number" || !isNaN(formattedValue)) && this.textbox.value != formattedValue){
this.textbox.value = formattedValue;
this._set("displayedValue", this.get("displayedValue"));
}
this._updatePlaceHolder();
this.inherited(arguments, [filteredValue, priorityChange]);
},
// displayedValue: String
// For subclasses like ComboBox where the displayed value
// (ex: Kentucky) and the serialized value (ex: KY) are different,
// this represents the displayed value.
//
// Setting 'displayedValue' through set('displayedValue', ...)
// updates 'value', and vice-versa. Otherwise 'value' is updated
// from 'displayedValue' periodically, like onBlur etc.
//
// TODO: move declaration to MappedTextBox?
// Problem is that ComboBox references displayedValue,
// for benefit of FilteringSelect.
displayedValue: "",
getDisplayedValue: function(){
// summary:
// Deprecated. Use get('displayedValue') instead.
// tags:
// deprecated
dojo.deprecated(this.declaredClass+"::getDisplayedValue() is deprecated. Use set('displayedValue') instead.", "", "2.0");
return this.get('displayedValue');
},
_getDisplayedValueAttr: function(){
// summary:
// Hook so get('displayedValue') works.
// description:
// Returns the displayed value (what the user sees on the screen),
// after filtering (ie, trimming spaces etc.).
//
// For some subclasses of TextBox (like ComboBox), the displayed value
// is different from the serialized value that's actually
// sent to the server (see dijit.form.ValidationTextBox.serialize)
// TODO: maybe we should update this.displayedValue on every keystroke so that we don't need
// this method
// TODO: this isn't really the displayed value when the user is typing
return this.filter(this.textbox.value);
},
setDisplayedValue: function(/*String*/ value){
// summary:
// Deprecated. Use set('displayedValue', ...) instead.
// tags:
// deprecated
dojo.deprecated(this.declaredClass+"::setDisplayedValue() is deprecated. Use set('displayedValue', ...) instead.", "", "2.0");
this.set('displayedValue', value);
},
_setDisplayedValueAttr: function(/*String*/ value){
// summary:
// Hook so set('displayedValue', ...) works.
// description:
// Sets the value of the visual element to the string "value".
// The widget value is also set to a corresponding,
// but not necessarily the same, value.
if(value === null || value === undefined){ value = '' }
else if(typeof value != "string"){ value = String(value) }
this.textbox.value = value;
// sets the serialized value to something corresponding to specified displayedValue
// (if possible), and also updates the textbox.value, for example converting "123"
// to "123.00"
this._setValueAttr(this.get('value'), undefined);
this._set("displayedValue", this.get('displayedValue'));
},
format: function(/*String*/ value, /*Object*/ constraints){
// summary:
// Replacable function to convert a value to a properly formatted string.
// tags:
// protected extension
return ((value == null || value == undefined) ? "" : (value.toString ? value.toString() : value));
},
parse: function(/*String*/ value, /*Object*/ constraints){
// summary:
// Replacable function to convert a formatted string to a value
// tags:
// protected extension
return value; // String
},
_refreshState: function(){
// summary:
// After the user types some characters, etc., this method is
// called to check the field for validity etc. The base method
// in `dijit.form.TextBox` does nothing, but subclasses override.
// tags:
// protected
},
_onInput: function(e){
if(e && e.type && /key/i.test(e.type) && e.keyCode){
switch(e.keyCode){
case dojo.keys.SHIFT:
case dojo.keys.ALT:
case dojo.keys.CTRL:
case dojo.keys.TAB:
return;
}
}
if(this.intermediateChanges){
var _this = this;
// the setTimeout allows the key to post to the widget input box
setTimeout(function(){ _this._handleOnChange(_this.get('value'), false); }, 0);
}
this._refreshState();
// In case someone is watch()'ing for changes to displayedValue
this._set("displayedValue", this.get("displayedValue"));
},
postCreate: function(){
if(dojo.isIE){ // IE INPUT tag fontFamily has to be set directly using STYLE
// the setTimeout gives IE a chance to render the TextBox and to deal with font inheritance
setTimeout(dojo.hitch(this, function(){
var s = dojo.getComputedStyle(this.domNode);
if(s){
var ff = s.fontFamily;
if(ff){
var inputs = this.domNode.getElementsByTagName("INPUT");
if(inputs){
for(var i=0; i < inputs.length; i++){
inputs[i].style.fontFamily = ff;
}
}
}
}
}), 0);
}
// setting the value here is needed since value="" in the template causes "undefined"
// and setting in the DOM (instead of the JS object) helps with form reset actions
this.textbox.setAttribute("value", this.textbox.value); // DOM and JS values should be the same
this.inherited(arguments);
if(dojo.isMoz || dojo.isOpera){
this.connect(this.textbox, "oninput", "_onInput");
}else{
this.connect(this.textbox, "onkeydown", "_onInput");
this.connect(this.textbox, "onkeyup", "_onInput");
this.connect(this.textbox, "onpaste", "_onInput");
this.connect(this.textbox, "oncut", "_onInput");
}
},
_blankValue: '', // if the textbox is blank, what value should be reported
filter: function(val){
// summary:
// Auto-corrections (such as trimming) that are applied to textbox
// value on blur or form submit.
// description:
// For MappedTextBox subclasses, this is called twice
// - once with the display value
// - once the value as set/returned by set('value', ...)
// and get('value'), ex: a Number for NumberTextBox.
//
// In the latter case it does corrections like converting null to NaN. In
// the former case the NumberTextBox.filter() method calls this.inherited()
// to execute standard trimming code in TextBox.filter().
//
// TODO: break this into two methods in 2.0
//
// tags:
// protected extension
if(val === null){ return this._blankValue; }
if(typeof val != "string"){ return val; }
if(this.trim){
val = dojo.trim(val);
}
if(this.uppercase){
val = val.toUpperCase();
}
if(this.lowercase){
val = val.toLowerCase();
}
if(this.propercase){
val = val.replace(/[^\s]+/g, function(word){
return word.substring(0,1).toUpperCase() + word.substring(1);
});
}
return val;
},
_setBlurValue: function(){
this._setValueAttr(this.get('value'), true);
},
_onBlur: function(e){
if(this.disabled){ return; }
this._setBlurValue();
this.inherited(arguments);
if(this._selectOnClickHandle){
this.disconnect(this._selectOnClickHandle);
}
if(this.selectOnClick && dojo.isMoz){
this.textbox.selectionStart = this.textbox.selectionEnd = undefined; // clear selection so that the next mouse click doesn't reselect
}
this._updatePlaceHolder();
},
_onFocus: function(/*String*/ by){
if(this.disabled || this.readOnly){ return; }
// Select all text on focus via click if nothing already selected.
// Since mouse-up will clear the selection need to defer selection until after mouse-up.
// Don't do anything on focus by tabbing into the widget since there's no associated mouse-up event.
if(this.selectOnClick && by == "mouse"){
this._selectOnClickHandle = this.connect(this.domNode, "onmouseup", function(){
// Only select all text on first click; otherwise users would have no way to clear
// the selection.
this.disconnect(this._selectOnClickHandle);
// Check if the user selected some text manually (mouse-down, mouse-move, mouse-up)
// and if not, then select all the text
var textIsNotSelected;
if(dojo.isIE){
var range = dojo.doc.selection.createRange();
var parent = range.parentElement();
textIsNotSelected = parent == this.textbox && range.text.length == 0;
}else{
textIsNotSelected = this.textbox.selectionStart == this.textbox.selectionEnd;
}
if(textIsNotSelected){
dijit.selectInputText(this.textbox);
}
});
}
this._updatePlaceHolder();
// call this.inherited() before refreshState(), since this.inherited() will possibly scroll the viewport
// (to scroll the TextBox into view), which will affect how _refreshState() positions the tooltip
this.inherited(arguments);
this._refreshState();
},
reset: function(){
// Overrides dijit._FormWidget.reset().
// Additionally resets the displayed textbox value to ''
this.textbox.value = '';
this.inherited(arguments);
}
}
);
dijit.selectInputText = function(/*DomNode*/ element, /*Number?*/ start, /*Number?*/ stop){
// summary:
// Select text in the input element argument, from start (default 0), to stop (default end).
// TODO: use functions in _editor/selection.js?
var _window = dojo.global;
var _document = dojo.doc;
element = dojo.byId(element);
if(isNaN(start)){ start = 0; }
if(isNaN(stop)){ stop = element.value ? element.value.length : 0; }
dijit.focus(element);
if(_document["selection"] && dojo.body()["createTextRange"]){ // IE
if(element.createTextRange){
var r = element.createTextRange();
r.collapse(true);
r.moveStart("character", -99999); // move to 0
r.moveStart("character", start); // delta from 0 is the correct position
r.moveEnd("character", stop-start);
r.select();
}
}else if(_window["getSelection"]){
if(element.setSelectionRange){
element.setSelectionRange(start, stop);
}
}
};
}