Google Apps Script DialogBox show from clienthandler [closed] - event-handling

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I am trying to create an 'Are You Sure' type dialog using a DialogBox. So when someone clicks a button, a popup shows with yes/no buttons for the user to confirm they wish to proceed with the action.
I have figured most of it out, however I can't figure out how to make it show without calling back to a server handler.
I tried using the show() command with a Client Handler, but it doesn't work. I tried using setVisibility() also, but couldn't get this working either.
I don't want to have to make a round trip just to show the dialog box for the obvious user experience reasons.
Does anyone have any suggestions?
Thanks in advance
Chris

Answer 1

Here is a small snippet i have created for just this reason. It does however use a server handler...
function MsgBox(message, title, id, buttons, handler, modal, autoHide){
this.message=message;
this.title=title;
this.id=id;
this.buttons=buttons;
this.handler=handler;
this.modal=(modal)?true:false;//Default is false
this.autoHide=(autoHide)?new Boolean(autoHide):true;//Default is true
this.position={};
this.position.top=100;
this.position.left=550;
this.position.width=400;
this.button={};
this.button.ok={name:"Ok",id:"OK_BTN"};
this.button.yes={name:"Yes",id:"YES_BTN"};
this.button.no={name:"No",id:"NO_BTN"};
this.button.cancel={name:"Cancel",id:"CANCEL_BTN"};
this.button.retry={name:"Retry",id:"RETRY_BTN"};
this.addButton=function(btn){
try{
if(this.buttons==undefined){this.buttons=[];}
if(typeof btn=="string"){btn=this.button[btn.toLowerCase()];}//If a string, convert to the intended object
if(btn.name==undefined){return this;}//Check if we've actualy got one of the buttons by checking one of it's properties. Exit if not.
this.buttons.push(btn);
}catch(err){
Logger.log(err.message);
}
return this;
};
this.show=function(e, app){
if(app==undefined){app=UiApp.getActiveApplication();}
if(this.buttons==undefined){this.buttons=[this.button.ok];}//The default is one 'Ok' button
var dialog=app.createDialogBox(true,true).setId(this.id).setText(this.title);
dialog.setPopupPosition(this.position.left,this.position.top);
dialog.setGlassEnabled(this.modal);
dialog.setAutoHideEnabled(this.autoHide);
var basePanel=app.createVerticalPanel().setWidth(this.position.width+"");
basePanel.add(app.createLabel(this.message).setWordWrap(true).setStyleAttribute("padding", "10px"));//Add message
var buttonPanel=app.createHorizontalPanel().setId("ButtonPanel");
basePanel.add(buttonPanel.setStyleAttribute("display", "block").setStyleAttribute("margin-left", "auto").setStyleAttribute("margin-right", "auto"));
var btnHandler=app.createServerHandler("msgBox_close").addCallbackElement(buttonPanel);
for(var i=0;i<this.buttons.length;i++){
var btn=app.createButton(this.buttons[i].name, btnHandler).setId(this.buttons[i].id).setTag(this.id);
if(this.handler!=undefined){btn.addClickHandler(this.handler);}
buttonPanel.add(btn);
}
dialog.add(basePanel).show();
return app;
};
}
function msgBox_close(e, app){
if(app==undefined){app=UiApp.getActiveApplication();}
var dialogId=e.parameter[e.parameter.source+"_tag"];
app.getElementById(dialogId).hide();
return app;
}
Here is a smal example how to use it.
var msgBox=new MsgBox("Testing 123...", "This is a test", "MyMsgBox");
msgBox.show(e, app);
By using the '_tag' parameter to reference its own ID you make a clean roundtrip with little hassle.
You can add standard buttons by calling the .addButton() function.
Example:
msgBox.addButton("yes").addButton("no");
By passing your own handler, you can call your own functions.
Example:
function myOwnHandler(e, app){
if(app==undefined){app=UiApp.getActiveApplication();}
if(e.parameter.source.indexOf("YES_BTN")!=-1){
}
return app;
}