我正在尝试向自定义调色板添加一个按钮，以调用位于使用小部件的工作区中的函数“uiFileInputDlg”。upbtn 出现在托盘上，但它没有触发在 postcreate 中连接的 DoUpload 函数，然后调用“uiFileInputDlg”。在 Firefox 中完美运行。我们是用户 dojo 1.7.2
------------模板-------------
<div class="dijitInline dijitColorPalette">
<div class="dijitColorPaletteInner" data-dojo-attach-point="divNode" role="grid" tabIndex="${tabIndex}">
</div>
<button type="button" id="upbtn"
data-dojo-type="dijit.form.Button"
data-dojo-props="id:'upbtn'"
data-dojo-attach-point="btnUpNode">
上传新图片
</按钮>
</div>
-------------------------小工具------------------------ ---
//dojo.provide("meemli.UploadPalette"); 定义（['dojo/_base/declare', 'dijit/_WidgetBase', 'dijit/_TemplatedMixin', 'dojo/i18n!dijit/nls/common', 'dojo/text!./templates/UploadPalette.html', ' dijit/_WidgetsInTemplateMixin', 'dojo/_base/lang' ], function(declare, w, t, i18n, template, witm, lang){ console.log('meemli.UploadPalette: 需要 dijit/nls/common.js INSTEAD OF dojo/nls/common' + i18n.invalidMessage);
return declare("meemli.UploadPalette",
[dijit._Widget, dijit._Templated],
{
// summary: A keyboard accessible color-picking widget
// description:
// Grid showing various colors, so the user can pick a certain color
// Can be used standalone, or as a popup.
//
// example:
// | <div dojoType="dijit.ColorPalette"></div>
//
// example:
// | var picker = new dijit.ColorPalette({ },srcNode);
// | picker.startup();
//
// defaultTimeout: Number
// number of milliseconds before a held key or button becomes typematic
defaultTimeout: 500,
// timeoutChangeRate: Number
// fraction of time used to change the typematic timer between events
// 1.0 means that each typematic event fires at defaultTimeout intervals
// < 1.0 means that each typematic event fires at an increasing faster rate
timeoutChangeRate: 0.90,
// palette: String
// Size of grid, either "7x10" or "3x4".
palette: "3x3",
//_value: String
// The value of the selected color.
value: null,
//_currentFocus: Integer
// Index of the currently focused color.
_currentFocus: 0,
// _xDim: Integer
// This is the number of colors horizontally across.
_xDim: null,
// _yDim: Integer
/// This is the number of colors vertically down.
_yDim: null,
// _palettes: Map
// This represents the value of the colors.
// The first level is a hashmap of the different arrays available
// The next two dimensions represent the columns and rows of colors.
_palettes: {
"3x3": [],
"3x2": ["/images/icons/1.png", "/images/icons/2.png", "/images/icons/3.png","/images/icons/4.png", "/images/icons/5.png", "/images/icons/6.png"]
},
// _imagePaths: Map
// This is stores the path to the palette images
// _imagePaths: {
// "3x3": dojo.moduleUrl("dijit", "templates/icons3x3.png")
// },
// _paletteCoords: Map
// This is a map that is used to calculate the coordinates of the
// images that make up the palette.
_paletteCoords: {
"leftOffset": 3, "topOffset": 3,
"cWidth": 50, "cHeight": 50
},
// templatePath: String
// Path to the template of this widget.
// templateString: dojo.cache("meemli", "templates/UploadPalette.html"),
templateString: template,
// _paletteDims: Object
// Size of the supported palettes for alignment purposes.
_paletteDims: {
"3x3": {"width": "156px", "height": "156px"}, // 48*3 + 3px left/top border + 3px right/bottom border...
"3x2": {"width": "156px", "height": "109px"} // 48*3 + 3px left/top border + 3px right/bottom border...
},
// tabIndex: String
// Widget tabindex.
maxCols: 3,
tabIndex: "0",
_curIndex: 0,
DoUpload: function(){
alert('hello');
uiFileInputDlg(); // function out in the workspace
},
_addImage: function(url) {
row = Math.floor(this._curIndex / this.maxCols);
col = this._curIndex - (row * this.maxCols);
this._curIndex++;
this._yDim = Math.floor(this._curIndex / this.maxCols);
this._xDim = this._curIndex - (row * this.maxCols);
var imgNode = dojo.doc.createElement("img");
imgNode.src = url;
//imgNode.style.height = imgNode.style.width = "48px";
var cellNode = dojo.doc.createElement("span");
cellNode.appendChild(imgNode);
cellNode.connectionRefs = new Array();
dojo.forEach(["Dijitclick", "MouseEnter", "Focus", "Blur"], function(handler) {
cellNode.connectionRefs.push(this.connect(cellNode, "on" + handler.toLowerCase(), "_onCell" + handler));
}, this);
this.divNode.appendChild(cellNode);
var cellStyle = cellNode.style;
cellStyle.top = this._paletteCoords.topOffset + (row * this._paletteCoords.cHeight) + "px";
cellStyle.left = this._paletteCoords.leftOffset + (col * this._paletteCoords.cWidth) + "px";
cellStyle.height = this._paletteCoords.cHeight + "px";
cellStyle.width = this._paletteCoords.cWidth + "px";
// console.debug( "tlhw: " + cellStyle.top + ", " + cellStyle.left + ", " + cellStyle.height + ", " + cellStyle.width );
// adjust size when the bits come...
// this.xh = this.xw = "32px";
//console.log('this.xh => ' + this.xh);
dojo.connect( imgNode,"onload", this, function() {
//console.log('IN: CONNECT...this.xh => ' + this.xh);
this.xh = imgNode.height;
this.xw = imgNode.width;
this.xh = (this.xh==0) ? this.xh="32px" : (this.xh + "");
this.xw = (this.xw==0) ? this.xw="32px" : (this.xw + "");
// var h = parseInt( this.xh );
// var w = parseInt( this.xw );
var hArr = this.xh.split('p');
var wArr = this.xw.split('p');
var h =hArr[0];
var w = wArr[0];
var THUMBNAIL_MAX_WIDTH = 50;
var THUMBNAIL_MAX_HEIGHT = 50;
var hLim = Math.min(THUMBNAIL_MAX_HEIGHT, this._paletteCoords.cHeight);
var wLim = Math.min(THUMBNAIL_MAX_WIDTH, this._paletteCoords.cWidth);
var scale = 1.0;
if( h > hLim || w > wLim ) {
if( h / w < 1.0 ) { // width is bigger than height
scale = wLim / w;
}
else {
scale = hLim / h;
}
}
imgNode.style.height = (scale * h) + "px";
imgNode.style.width = (scale * w) + "px";
console.debug( imgNode.src + ' loaded.'
+ "old: h " + h + ", w " + w + ", scale " + scale
+ ". new: h " + imgNode.style.height + ", w " + imgNode.style.width );
} );
if(dojo.isIE){
// hack to force event firing in IE
// image quirks doc'd in dojox/image/Lightbox.js :: show: function.
// imgNode.src = imgNode.src;
}
dojo.attr(cellNode, "tabindex", "-1");
dojo.addClass(cellNode, "imagePaletteCell");
dijit.setWaiRole(cellNode, "gridcell");
cellNode.index = this._cellNodes.length;
this._cellNodes.push(cellNode);
},
_clearImages: function() {
for(var i = 0; i < this._cellNodes.length; i++) {
this._cellNodes[i].parentNode.removeChild(this._cellNodes[i]);
}
this._currentFocus = 0;
this._curIndex = 0;
this._yDim = 0;
this._xDim = 0;
this._cellNodes = [];
},
setImages: function(imageList) {
this._clearImages();
for(var i = 0; i < imageList.length; i++) {
this._addImage(imageList[i]);
}
},
postCreate: function(){
// A name has to be given to the colorMap, this needs to be unique per Palette.
dojo.mixin(this.divNode.style, this._paletteDims[this.palette]);
// this.imageNode.setAttribute("src", this._imagePaths[this.palette]);
this.domNode.style.position = "relative";
this._cellNodes = [];
this.setImages(this._palettes[this.palette]);
this.connect(this.divNode, "onfocus", "_onDivNodeFocus");
this.connect(this.btnUpNode, "onclick", "DoUpload");
// Now set all events
// The palette itself is navigated to with the tab key on the keyboard
// Keyboard navigation within the Palette is with the arrow keys
// Spacebar selects the color.
// For the up key the index is changed by negative the x dimension.
var keyIncrementMap = {
UP_ARROW: -this._xDim,
// The down key the index is increase by the x dimension.
DOWN_ARROW: this._xDim,
// Right and left move the index by 1.
RIGHT_ARROW: 1,
LEFT_ARROW: -1
};
for(var key in keyIncrementMap){
this._connects.push(dijit.typematic.addKeyListener(this.domNode,
{keyCode:dojo.keys[key], ctrlKey:false, altKey:false, shiftKey:false},
this,
function(){
var increment = keyIncrementMap[key];
return function(count){ this._navigateByKey(increment, count); };
}(),
this.timeoutChangeRate, this.defaultTimeout));
}
},
focus: function(){
// summary:
// Focus this ColorPalette. Puts focus on the first swatch.
this._focusFirst();
},
onChange: function(url, hsz, wsz){
// summary:
// Callback when a image is selected.
// url, hsz, wsz, strings
// height and width string .
// console.debug("img selected: "+url);
},
_focusFirst: function(){
this._currentFocus = 0;
var cellNode = this._cellNodes[this._currentFocus];
window.setTimeout(function(){dijit.focus(cellNode);}, 0);
},
_onDivNodeFocus: function(evt){
// focus bubbles on Firefox 2, so just make sure that focus has really
// gone to the container
if(evt.target === this.divNode){
this._focusFirst();
}
},
_onFocus: function(){
// while focus is on the palette, set its tabindex to -1 so that on a
// shift-tab from a cell, the container is not in the tab order
dojo.attr(this.divNode, "tabindex", "-1");
},
_onBlur: function(){
this._removeCellHighlight(this._currentFocus);
// when focus leaves the palette, restore its tabindex, since it was
// modified by _onFocus().
dojo.attr(this.divNode, "tabindex", this.tabIndex);
},
_onCellDijitclick: function(/*Event*/ evt){
// summary:
// Handler for click, enter key & space key. Selects the color.
// evt:
// The event.
var target = evt.currentTarget;
if (this._currentFocus != target.index){
this._currentFocus = target.index;
window.setTimeout(function(){dijit.focus(target);}, 0);
}
this._selectColor(target);
dojo.stopEvent(evt);
},
_onCellMouseEnter: function(/*Event*/ evt){
// summary:
// Handler for onMouseOver. Put focus on the color under the mouse.
// evt:
// The mouse event.
var target = evt.currentTarget;
window.setTimeout(function(){dijit.focus(target);}, 0);
},
_onCellFocus: function(/*Event*/ evt){
// summary:
// Handler for onFocus. Removes highlight of
// the color that just lost focus, and highlights
// the new color.
// evt:
// The focus event.
this._removeCellHighlight(this._currentFocus);
this._currentFocus = evt.currentTarget.index;
dojo.addClass(evt.currentTarget, "imagePaletteCellHighlight");
},
_onCellBlur: function(/*Event*/ evt){
// summary:
// needed for Firefox 2 on Mac OS X
this._removeCellHighlight(this._currentFocus);
},
_removeCellHighlight: function(index){
dojo.removeClass(this._cellNodes[index], "imagePaletteCellHighlight");
},
_selectColor: function(selectNode){
// summary:
// This selects a color. It triggers the onChange event
// area:
// The area node that covers the color being selected.
var img = selectNode.getElementsByTagName("img")[0];
this.onChange(this.value = img.src, this.xh, this.xw);
},
_navigateByKey: function(increment, typeCount){
// summary:
// This is the callback for typematic.
// It changes the focus and the highlighed color.
// increment:
// How much the key is navigated.
// typeCount:
// How many times typematic has fired.
// typecount == -1 means the key is released.
if(typeCount == -1){ return; }
var newFocusIndex = this._currentFocus + increment;
if(newFocusIndex < this._cellNodes.length && newFocusIndex > -1)
{
var focusNode = this._cellNodes[newFocusIndex];
focusNode.focus();
}
}
});
});