264 lines
9.3 KiB
JavaScript
264 lines
9.3 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._CssStateMixin"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
|
|
dojo._hasResource["dijit._CssStateMixin"] = true;
|
|
dojo.provide("dijit._CssStateMixin");
|
|
|
|
|
|
dojo.declare("dijit._CssStateMixin", [], {
|
|
// summary:
|
|
// Mixin for widgets to set CSS classes on the widget DOM nodes depending on hover/mouse press/focus
|
|
// state changes, and also higher-level state changes such becoming disabled or selected.
|
|
//
|
|
// description:
|
|
// By mixing this class into your widget, and setting the this.baseClass attribute, it will automatically
|
|
// maintain CSS classes on the widget root node (this.domNode) depending on hover,
|
|
// active, focus, etc. state. Ex: with a baseClass of dijitButton, it will apply the classes
|
|
// dijitButtonHovered and dijitButtonActive, as the user moves the mouse over the widget and clicks it.
|
|
//
|
|
// It also sets CSS like dijitButtonDisabled based on widget semantic state.
|
|
//
|
|
// By setting the cssStateNodes attribute, a widget can also track events on subnodes (like buttons
|
|
// within the widget).
|
|
|
|
// cssStateNodes: [protected] Object
|
|
// List of sub-nodes within the widget that need CSS classes applied on mouse hover/press and focus
|
|
//.
|
|
// Each entry in the hash is a an attachpoint names (like "upArrowButton") mapped to a CSS class names
|
|
// (like "dijitUpArrowButton"). Example:
|
|
// | {
|
|
// | "upArrowButton": "dijitUpArrowButton",
|
|
// | "downArrowButton": "dijitDownArrowButton"
|
|
// | }
|
|
// The above will set the CSS class dijitUpArrowButton to the this.upArrowButton DOMNode when it
|
|
// is hovered, etc.
|
|
cssStateNodes: {},
|
|
|
|
// hovering: [readonly] Boolean
|
|
// True if cursor is over this widget
|
|
hovering: false,
|
|
|
|
// active: [readonly] Boolean
|
|
// True if mouse was pressed while over this widget, and hasn't been released yet
|
|
active: false,
|
|
|
|
_applyAttributes: function(){
|
|
// This code would typically be in postCreate(), but putting in _applyAttributes() for
|
|
// performance: so the class changes happen before DOM is inserted into the document.
|
|
// Change back to postCreate() in 2.0. See #11635.
|
|
|
|
this.inherited(arguments);
|
|
|
|
// Automatically monitor mouse events (essentially :hover and :active) on this.domNode
|
|
dojo.forEach(["onmouseenter", "onmouseleave", "onmousedown"], function(e){
|
|
this.connect(this.domNode, e, "_cssMouseEvent");
|
|
}, this);
|
|
|
|
// Monitoring changes to disabled, readonly, etc. state, and update CSS class of root node
|
|
dojo.forEach(["disabled", "readOnly", "checked", "selected", "focused", "state", "hovering", "active"], function(attr){
|
|
this.watch(attr, dojo.hitch(this, "_setStateClass"));
|
|
}, this);
|
|
|
|
// Events on sub nodes within the widget
|
|
for(var ap in this.cssStateNodes){
|
|
this._trackMouseState(this[ap], this.cssStateNodes[ap]);
|
|
}
|
|
// Set state initially; there's probably no hover/active/focus state but widget might be
|
|
// disabled/readonly/checked/selected so we want to set CSS classes for those conditions.
|
|
this._setStateClass();
|
|
},
|
|
|
|
_cssMouseEvent: function(/*Event*/ event){
|
|
// summary:
|
|
// Sets hovering and active properties depending on mouse state,
|
|
// which triggers _setStateClass() to set appropriate CSS classes for this.domNode.
|
|
|
|
if(!this.disabled){
|
|
switch(event.type){
|
|
case "mouseenter":
|
|
case "mouseover": // generated on non-IE browsers even though we connected to mouseenter
|
|
this._set("hovering", true);
|
|
this._set("active", this._mouseDown);
|
|
break;
|
|
|
|
case "mouseleave":
|
|
case "mouseout": // generated on non-IE browsers even though we connected to mouseleave
|
|
this._set("hovering", false);
|
|
this._set("active", false);
|
|
break;
|
|
|
|
case "mousedown" :
|
|
this._set("active", true);
|
|
this._mouseDown = true;
|
|
// Set a global event to handle mouseup, so it fires properly
|
|
// even if the cursor leaves this.domNode before the mouse up event.
|
|
// Alternately could set active=false on mouseout.
|
|
var mouseUpConnector = this.connect(dojo.body(), "onmouseup", function(){
|
|
this._mouseDown = false;
|
|
this._set("active", false);
|
|
this.disconnect(mouseUpConnector);
|
|
});
|
|
break;
|
|
}
|
|
}
|
|
},
|
|
|
|
_setStateClass: function(){
|
|
// summary:
|
|
// Update the visual state of the widget by setting the css classes on this.domNode
|
|
// (or this.stateNode if defined) by combining this.baseClass with
|
|
// various suffixes that represent the current widget state(s).
|
|
//
|
|
// description:
|
|
// In the case where a widget has multiple
|
|
// states, it sets the class based on all possible
|
|
// combinations. For example, an invalid form widget that is being hovered
|
|
// will be "dijitInput dijitInputInvalid dijitInputHover dijitInputInvalidHover".
|
|
//
|
|
// The widget may have one or more of the following states, determined
|
|
// by this.state, this.checked, this.valid, and this.selected:
|
|
// - Error - ValidationTextBox sets this.state to "Error" if the current input value is invalid
|
|
// - Incomplete - ValidationTextBox sets this.state to "Incomplete" if the current input value is not finished yet
|
|
// - Checked - ex: a checkmark or a ToggleButton in a checked state, will have this.checked==true
|
|
// - Selected - ex: currently selected tab will have this.selected==true
|
|
//
|
|
// In addition, it may have one or more of the following states,
|
|
// based on this.disabled and flags set in _onMouse (this.active, this.hovering) and from focus manager (this.focused):
|
|
// - Disabled - if the widget is disabled
|
|
// - Active - if the mouse (or space/enter key?) is being pressed down
|
|
// - Focused - if the widget has focus
|
|
// - Hover - if the mouse is over the widget
|
|
|
|
// Compute new set of classes
|
|
var newStateClasses = this.baseClass.split(" ");
|
|
|
|
function multiply(modifier){
|
|
newStateClasses = newStateClasses.concat(dojo.map(newStateClasses, function(c){ return c+modifier; }), "dijit"+modifier);
|
|
}
|
|
|
|
if(!this.isLeftToRight()){
|
|
// For RTL mode we need to set an addition class like dijitTextBoxRtl.
|
|
multiply("Rtl");
|
|
}
|
|
|
|
if(this.checked){
|
|
multiply("Checked");
|
|
}
|
|
if(this.state){
|
|
multiply(this.state);
|
|
}
|
|
if(this.selected){
|
|
multiply("Selected");
|
|
}
|
|
|
|
if(this.disabled){
|
|
multiply("Disabled");
|
|
}else if(this.readOnly){
|
|
multiply("ReadOnly");
|
|
}else{
|
|
if(this.active){
|
|
multiply("Active");
|
|
}else if(this.hovering){
|
|
multiply("Hover");
|
|
}
|
|
}
|
|
|
|
if(this._focused){
|
|
multiply("Focused");
|
|
}
|
|
|
|
// Remove old state classes and add new ones.
|
|
// For performance concerns we only write into domNode.className once.
|
|
var tn = this.stateNode || this.domNode,
|
|
classHash = {}; // set of all classes (state and otherwise) for node
|
|
|
|
dojo.forEach(tn.className.split(" "), function(c){ classHash[c] = true; });
|
|
|
|
if("_stateClasses" in this){
|
|
dojo.forEach(this._stateClasses, function(c){ delete classHash[c]; });
|
|
}
|
|
|
|
dojo.forEach(newStateClasses, function(c){ classHash[c] = true; });
|
|
|
|
var newClasses = [];
|
|
for(var c in classHash){
|
|
newClasses.push(c);
|
|
}
|
|
tn.className = newClasses.join(" ");
|
|
|
|
this._stateClasses = newStateClasses;
|
|
},
|
|
|
|
_trackMouseState: function(/*DomNode*/ node, /*String*/ clazz){
|
|
// summary:
|
|
// Track mouse/focus events on specified node and set CSS class on that node to indicate
|
|
// current state. Usually not called directly, but via cssStateNodes attribute.
|
|
// description:
|
|
// Given class=foo, will set the following CSS class on the node
|
|
// - fooActive: if the user is currently pressing down the mouse button while over the node
|
|
// - fooHover: if the user is hovering the mouse over the node, but not pressing down a button
|
|
// - fooFocus: if the node is focused
|
|
//
|
|
// Note that it won't set any classes if the widget is disabled.
|
|
// node: DomNode
|
|
// Should be a sub-node of the widget, not the top node (this.domNode), since the top node
|
|
// is handled specially and automatically just by mixing in this class.
|
|
// clazz: String
|
|
// CSS class name (ex: dijitSliderUpArrow).
|
|
|
|
// Current state of node (initially false)
|
|
// NB: setting specifically to false because dojo.toggleClass() needs true boolean as third arg
|
|
var hovering=false, active=false, focused=false;
|
|
|
|
var self = this,
|
|
cn = dojo.hitch(this, "connect", node);
|
|
|
|
function setClass(){
|
|
var disabled = ("disabled" in self && self.disabled) || ("readonly" in self && self.readonly);
|
|
dojo.toggleClass(node, clazz+"Hover", hovering && !active && !disabled);
|
|
dojo.toggleClass(node, clazz+"Active", active && !disabled);
|
|
dojo.toggleClass(node, clazz+"Focused", focused && !disabled);
|
|
}
|
|
|
|
// Mouse
|
|
cn("onmouseenter", function(){
|
|
hovering = true;
|
|
setClass();
|
|
});
|
|
cn("onmouseleave", function(){
|
|
hovering = false;
|
|
active = false;
|
|
setClass();
|
|
});
|
|
cn("onmousedown", function(){
|
|
active = true;
|
|
setClass();
|
|
});
|
|
cn("onmouseup", function(){
|
|
active = false;
|
|
setClass();
|
|
});
|
|
|
|
// Focus
|
|
cn("onfocus", function(){
|
|
focused = true;
|
|
setClass();
|
|
});
|
|
cn("onblur", function(){
|
|
focused = false;
|
|
setClass();
|
|
});
|
|
|
|
// Just in case widget is enabled/disabled while it has focus/hover/active state.
|
|
// Maybe this is overkill.
|
|
this.watch("disabled", setClass);
|
|
this.watch("readOnly", setClass);
|
|
}
|
|
});
|
|
|
|
}
|