How to use dojo moveTo programmatically through javascript? - dojo

I can markup a Heading or ListItem to have a moveTo attribute and that transition works perfectly.
Is there a way perform a transition to a named view programmatically say, on a button click?
Somewhere on the net I found below code, but its not working. I need something similar to this -
function moveTo(){
var w = dijit.byId('currentView');
w.performTransition('#newView',1,"fade",null);
}

This code sample registers an onclick event handler on a button with the id "ButtonID". After pressing the button, a lookup in the dijit registry will be performed to find the displayed view.
You can call the function performTransition(...) on any dojox.mobile.View.
require(["dijit/registry"], function(registry) {
dojo.ready(function() {
// Button Listener
registry.byId("ButtonID").on("click", function(){
var oldView = dijit.registry.byId("ID_View1");
oldView.performTransition("ID_View2", 1, "slide", null);
});
});
But:
Changing "moveTo" parameters programmatically is much more difficult than performing transitions between views. You have to do some nasty things to override the moveTo Attribute of a widget like for example a Backbutton in a dojox.mobile.Heading
var heading1 = dijit.registry.byId("ID_Heading");
heading1.destroyDescendants();
heading1.moveTo = viewId;
heading1.backButton = false;
heading1._setBackAttr("Zurück");

Related

Can a dojo TabContainer be configured to switch by mouse over?

I'm using dojo toolkit dijit.layout.TabContainer to switch 3 tabbed pages.
Right now I click on tabs to switch them, but I want to switch them by mouse over instead.
Can a TabContainer be configured to switch by mouse over, or should I write a code to handle mouse over events to explicitly switch tabs?
I'd appreciate any suggestions!
-Sari
Yes. For this functionality, we need to add the onmouseover event to the tabs label fields. Add this code inside the dojo/ready (or addOnLoad) function.
require(["dojo/ready","dojo/query"], function(ready,query){
ready(function(){
var tabs = dijit.byId("TabContainerID");
query("#TabContainerID.dijitTabInner").onmouseover(function(evt){
var tablabelid = dijit.getEnclosingWidget(evt.target).id;
var currentId = dijit.byId("TabContainerID").selectedChildWidget;
var tabwidid = tablabelid.split("_").pop();
if(tabwidid && currentId!=tabwidid) {
tabs.selectChild(tabwidid);
}
});
});
});

Dojo:how to find if the widget has focus in dojo

how do I find out if my custom widget has focus in Dojo?
i have dojo editor i wnat to know if the editor has already focus or not?
you can use the module dijit/focus to find out the focus
FROM DOJO DOCS
Tracking active widgets
At any point in time there is a set of (for lack of a better word)
“active” or “focused” widgets, meaning the currently focused widget
and that widget’s ancestors. “Ancestor” can mean either DOM ancestor
(ex: TextBox –> Form), or a logical parent-child relationship (ex:
TooltipDialog –> DropDownButton).
For example, if focus is on a TextBox inside a TabContainer inside a
TooltipDialog triggered by a DropDownButton, the stack would be
TextBox –> ContentPane –> TabContainer –> TooltipDialog –>
DropDownButton.
The activeStack[] parameter indicates this set of widgets, and an app
can monitor changes to activeStack[] by:
require([ "dijit/focus" ], function(focusUtil){
focusUtil.watch("activeStack", function(name, oldValue, newValue){
console.log("Focused widget + ancestors: ", newValue.join(", "));
});
});
the question in title has a different answer than the one in the descriptions.
there are two ways achieving the question in the title, by using dojo's focusUtil ("dijit/focus"). both ways give you something that you could find the widget using it and the dijit's registry ("dijit/registry").
focusUtil.curNode: gives you the DOM Node that currently has the focus. the function below, you could get the widget reference.
function getWidgetByNode(node){
var result;
while (!result && node){
result = registry.byNode(node);
if (node.parentElement)
node = node.parentElement;
else
node = null;
}
return result;
}
var focusedWidget = getWidgetByNode(focusUtil.curNode)
focusUtil.activeStack: gives you an array of the widgets (parent to child) that has the focus. so the last item in the array is the direct widget which has the focus. index values are widget ids, so you should get the widget by the following code
var focusedWidgetId = focusUtil.activeStack[focusUtil.activeStack.length-1];
var focusedWidget = registry.byId(focusedWidgetId);
now if you want to know if the currently focused widget is some specific one, it depends on what you have in hands from that specific widget:
widget itself: like the return values of above samples. now you have to compare if these are the same thing. you can not compare two widget objects using the == operator. you could compare their ids like this:
myWidget.id == focusedWidget.id
widget's id: this way you just easily get the id of the current node from focusUtil and compare it with the id you have liek this:
myWidgetId == focusedWidgetId
references:
http://dojotoolkit.org/reference-guide/1.9/dijit/focus.html
http://dojotoolkit.org/reference-guide/1.9/dijit/registry.html
require([ "dijit/focus" ], function(focusUtil){
var activeElement = focusUtil.curNode; // returns null if there is no focused element
});
check blow url here you can see some examples
http://dojotoolkit.org/reference-guide/1.8/dijit/focus.html#dijit-focus
a) For dojo 1.6: call dijit.getFocus(). This will return an object containing the currently focused dom node, among other things (selected text, etc.). To get the corresponding widget, simply do:
var activeElement = dijit.getEnclosingWidget(dijit.getFocus().node);
This is the full reference for dijit.getFocus(), from the source code:
// summary:
// Called as getFocus(), this returns an Object showing the current focus
// and selected text.
//
// Called as getFocus(widget), where widget is a (widget representing) a button
// that was just pressed, it returns where focus was before that button
// was pressed. (Pressing the button may have either shifted focus to the button,
// or removed focus altogether.) In this case the selected text is not returned,
// since it can't be accurately determined.
//
// menu: dijit._Widget or {domNode: DomNode} structure
// The button that was just pressed. If focus has disappeared or moved
// to this button, returns the previous focus. In this case the bookmark
// information is already lost, and null is returned.
//
// openedForWindow:
// iframe in which menu was opened
//
// returns:
// A handle to restore focus/selection, to be passed to `dijit.focus`.
b) For dojo 1.7 and up, use dijit/focus:
require([ "dijit/focus" ], function(focusUtil) {
var activeElement = focusUtil.curNode; // returns null if there is no focused element
});

Any link for Dojo sliding panel?

Can anyone help me with a link where I find Dojo sliding panel ? I have been searching for it but still didn't got it. I have sliding panel for jQuery, I got it from this link : http://web-kreation.com/all/implement-a-nice-clean-jquery-sliding-panel-in-wordpress-27/
You could make use of the dojo.fx.wipeIn functionality.
http://dojotoolkit.org/reference-guide/1.7/dojo/fx/wipeIn.html
So if you create two divs, one above the other, have the top one with display: none, and the other as the bit that you click to slide the panel down. Then use dojo.connect to link the clicking of the bottom panel to a wipe in of your top panel.
e.g.
// Have your main body content
var mainBody;
// Create top panel
var myPanel = document.createElement("div");
// Set visibility to none
dojo.style(myPanel, "display", "none");
// Create tab to expand your panel (or slide it down)
var expand = document.createElement("div");
expand.innerHTML = "click here to slide down";
mainBody.appendChild(myPanel);
mainBody.appendChild(expand);
var self = this;
dojo.connect(expand, "onclick", this, slidePanel);
Then you'd have your slidePanel function do something like:
// Get reference to your panel
var myPanel;
var wipeArgs = {
node: myPanel
};
// Then just wipe the panel in or out respectively
if (myPanel.style.display == "none") {
dojo.fx.wipeIn(wipeArgs).play();
} else {
dojo.fx.wipeOut(wipeArgs).play();
}

Titanium Appcelerator Custom Buttons

I'm new with Appcelerator and I encountered an annoying problem regarding layout.
I have to do a menu bar that is very easy to do with plain html (ul>li>a and that's all). The problem is that it seems that all button-related functions are not... customizable. I want buttons to be displayed as plain text, not buttons.
The first thought was to use labels (instead of buttons). But... Is this a right way? I need a menu bar, not a text paragraph! Besides that, the menu is somehow flexible, not like labels.
This is one (of many!) things i tried:
var menu_color = Titanium.UI.createButton({
title:Ti.Locale.getString("menu_color") || "Color",
height:24,
top:10
});
I also added borderWidth:0 (no effect) and backgroundColor:none/transparent with no luck.
Help? :)
I usually use views when I need to create what you described above.
For example:
I use a view with a vertical layout, then add my child views. The child views then have listeners for the click or whatever event.
This allows you to have more control over the formatting. A side effect of this is you will need to create your own "press" ui cue in some cases.
var demo = {win : Ti.UI.currentWindow};
(function(){
//Create the container view
demo.vwMain = Ti.UI.createView({height:100, layout:'vertical', backgroundColor:'yellow'});
demo.win.add(demo.vwMain);
demo.fakebutton1 = Ti.UI.createView({height:40, backgroundColor:'blue',left:25,right:25,borderRadius:5,borderColor:'#000'});
demo.vwMain.add(demo.fakebutton1);
demo.fakebutton2 = Ti.UI.createView({top:5,height:40, backgroundColor:'green',left:25,right:25,borderRadius:5,borderColor:'#000'});
demo.vwMain.add(demo.fakebutton2);
demo.fakebutton1.addEventListener('click', function(e) {
alert('Clicked fake button 1');
});
demo.fakebutton2.addEventListener('click', function(e) {
alert('Clicked fake button 2');
});
})();
create a view with layout property is set to vertical and add label or button which you want.View is like in HTML.Hope you understand.

dojo connect mouseover and mouseout

When setting up dojo connections to onmouseover and onmouseout, and then adding content on mouseover, dojo fires the onmouseout event at once, since there is new content. Example:
dojo.query(".star").parent().connect("onmouseover", function() {
dojo.query("span", this).addContent("<img src='star-hover.jpg'>");
}).connect("onmouseout", function() {
dojo.destroy(dojo.query("img", this)[0]);
});
The parent() is a <td>, and the .star is a span. I want to add the hover image whenever the user hovers the table cell. It works as long as the cursor doesn't hover the image, because that will result in some serious blinking. Is this deliberate? And is there a way around it?
Edit: Just tried out something similar with jQuery, and it works as expected (at least as I expected it to work.)
$(".star").parent().hover(function() {
$("span", this).append("<img src='star-hover.jpg'>");
}, function() {
$("img", this).remove();
});
This will show the image when hovering, and remove only when moving the cursor outside the table cell.
The reason it works with jQuery in your example is because .hover uses the normalized onmouseenter/onmouseleave events. If you were to connect to those, it would work in Dojo as expected. Also, a simulation of .hover for Dojo would be:
dojo.NodeList.prototype.hover = function(over, out){
return this.onmouseenter(over).onmouseleave(out || over);
}
Then you'd just:
dojo.query("...").hover(function(e){ .. }, function(e){ .. });
The differences between mouseeneter and mouseover are why you are seeing the behavior of an immediate onmouseout firing.