Lightning Launcher

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====== About the script ======
  * Purpose : Allows to organize a bit the bindings and have them stored for multiple use.
  * Author : [[https://plus.google.com/u/1/105066926163073195690|TrianguloY]]
  * Link:  https://plus.google.com/u/1/105066926163073195690/posts/MV9GHHLjHE4

====== How to use the script ======

  * simply run it and choose what you want to do. Check the features for more information.

Features:
  * Add bindings directly from text, writing/pasteing them.
  * Add binding from the current item (you need to run the script from an item)
  * Add all bindings on the launcher: this will search all bindings from all items from the launcher to save them (will ask one by one without duplicates)
  * Rename a saved binding
  * See/Edit/Delete a saved binding
  * Set a saved binding to the current item (you need to run the script from an item) at a chosen property.


Configuration:
  * You can change the folder where the data (the bindings) are saved.

Notes:
  * When choosing a property, _VOID_ means _DUMMY_
  * Editing the bindings folder from outside will only take effect after restarting the script (and is recommended to not do it while the script is running)
  * You can remove/add/edit manually the files without problem (if you don't do strange things). You can make a copy, delete all at once, add some, etc

Important:
  * Due to the complexity of the script, it may contain bugs. If you find one don't be afraid of tell me in the comments (from the link)

====== Script code ======
<sxh javascript>

var directory = "LightningLauncher/binding_dictionary";


//classes
LL.bindClass("android.app.AlertDialog");
LL.bindClass("android.content.DialogInterface");
LL.bindClass("java.io.File");
LL.bindClass("java.io.FileWriter");
LL.bindClass("android.os.Environment");
LL.bindClass("java.io.BufferedReader");
LL.bindClass("java.io.FileReader");


//vars
var MAX = 50;
var item = LL.getEvent().getItem();
var script = LL.getCurrentScript();
var saved;
var properties;
var folder = new File(Environment.getExternalStorageDirectory()+"/"+directory);
folder.mkdirs();

//start
loadSaved();
main();




/// menu ///

function main(){

	var entries = ["-- Add binding to the dictionary... --\n"]
		.concat(saved.names
		.map(function(v,i,a){
			return v+"\n{"+cut(saved.formulas[i])+"}\n";
		}));

	list(entries
		,f_main
		,null
		,"Binding dictionary, choose");

}

//gets the chosen entry on the main menu
function f_main(which){

	if(which==0)
		toDictionary();
	else
		main2(which-1);

}




//what to do with the binding selected
function main2(data){

	list(["Add to the item...","See/Edit/delete binding...","Rename binding..."]
		,f_main2
		,main
		,"Choose what to do with the binding"
		,data);

}

//gets the chosen option in the main2 menu
function f_main2(which,data){

	if(which==0)
		toItem(data);
	else if(which==1)
		editor(data);
	else if(which==2)
		rename(data);

}


/// add to item ///


//shows the list of properties to choose
function toItem(data){

	if(item==null){
		noItemAlert()
		main()
		return;
	}

	list(properties
		,f_toItem
		,main2
		,"Choose the property where to set the binding"
		,data);

}


//gets the chosen property
//adds the binding to the item
function f_toItem(which,data){

	var target=Property[properties[which]];
	var binding=saved.formulas[data];
	//alert(item+"\n"+binding+"\n"+target);


	var old=item.getBindingByTarget(target);
	if(old!=null
		&& !confirm("There is already a binding on that property, do you want to override it?\n Current binding:\n"+old.getFormula())){
		toItem(data);
		return;
	}

	if(confirm("Confirm the data:\nTarget:"+target+"\nBinding:"+ binding)){
		item.setBinding(target, binding,true);
		Android.makeNewToast("Binding set",true).show()
		main();
	}else{
		toItem(data);
	}

}


/// add to dictionary ///


//shows the list of sources to choose
function toDictionary(){

	list(["From text...","From item...","From launcher..."]
		,f_toDictionary
		,main
		,"Choose from where to take it");

}

//gets the source chosen
function f_toDictionary(which){

	if(which==0)
		textToDictionary();
	else if(which==1)
		itemToDictionary();
	else if(which==2)
		fromLauncher();

}



//prompts the user to enter a name and formula to save
function textToDictionary(){

	var formula="";
	var name="";

	while(true){

		formula = prompt("Enter the formula of the binding",formula);

		if(formula==null){
			toDictionary();
			return;
		}

		name = prompt("Enter the name of the binding",name||"");

		if(name!=null
			&& addToDictionary(name,formula)){
			toDictionary();
			return;
		}

	}//end while

}


//shows the list of bindings of the item to choose
function itemToDictionary(){

	if(item==null){
		noItemAlert();
		toDictionary();
		return;
	}

	var rawBindings = item.getAllBindings();
	var names = [];
	var itemBindings=[];
	for(var t=0;t<rawBindings.getLength();++t){
		var form=rawBindings.getAt(t).getFormula();
		names.push(rawBindings.getAt(t).getTarget()+"{"+cut(form)+"}");
		itemBindings.push(form);
	}

	if(names.length==0){
		alert("The selected item has no bindings");
		toDictionary();
		return;
	}

	list(names
		,f_itemToDictionary
		,toDictionary
		,"Choose the binding to save into the dictionary"
		,itemBindings);

}


//gets which binding to add
function f_itemToDictionary(which,itemBindings){

	var formula = itemBindings[which];

	var name = "";

	while(true){
		name = prompt("Enter the name of the binding",name);

		if(name==null){
			itemToDictionary();
			return;
		}

		if(addToDictionary(name,formula)){
			itemToDictionary();
			return;
		}

	}//end while

}


/// editor ///

function editor(index){

	var output=saved.formulas[index];


	while(true){

		output=prompt(saved.names[index]+" (save an empty string to delete)",output);

		if(output==null){
			main2(index);
			return;
		}else if(output==""){
			if(deleteBinding(index)){
				main();
				return;
			}
		}else if(output!=saved.formulas[index]){
			if(updateBinding(index,output)){
				main2(index);
				return
			}
		}else{
			main2(index);
			return;
		}


	}//end while


}


/// rename ///

function rename(index){

	var name = saved.names[index];

	while(true){

		name = prompt("New name:",name);

		if(name==null){
			main2(index);
			return;
		}else if(name==""){
			if(deleteBinding(index)){
				main();
				return;
			}
		}else if(name!=saved.names[index]){
			if(renameBinding(index,name)){
				main2(index);
				return;
			}
		}else{
			main2(index);
			return;
		}

	}//end while

}



/// import from launcher ///

var ids;

function fromLauncher(){

	if(!confirm("This will search all bindings from all items in all desktops + the app drawer and ask to save them in the dictionary.\nBindings already in the dictionary will be skipped.\nYou will be asked one by one\n\n Start the process?")){
		toDictionary();
		return;
	}

	ids=[];//ids of containers, to avoid recursion

	var desktops=LL.getAllDesktops();

	for(var t=0;t<desktops.getLength();++t){
		importFrom(LL.getContainerById(desktops.getAt(t)));
	}

	importFrom(LL.getContainerById(99));

	Android.makeNewToast("Done importing", true).show();
	toDictionary();

}


function importFrom(c){

	if(ids.indexOf(c.getId())!=-1) return;
	ids.push(c.getId());

	var items=c.getItems();

	for(var t=0;t<items.getLength();++t){

		var item = items.getAt(t);

		var bindings = item.getAllBindings();

		for(var j=0;j<bindings.getLength();++j){

			var bind=bindings.getAt(j);
			var formula=bind.getFormula();

			if(saved.formulas.indexOf(formula)!=-1) continue;

			addToDictionary(item.getId()+"-"+bind.getTarget(),formula);

		}

		if(item.getType()=="Panel" || item.getType()=="Folder")
		importFrom(item.getContainer());

	}

}






/// global ///

//@return true if saved, false if not
function addToDictionary(name,formula){

	if(name==null||name==""){
		alert("Error: You can't use an empty name");
		return false;
	}

	if(formula==null||formula==""){
		alert("Error: You can't use an empty formula");
		return false;
	}

	name=name.replace(/[^a-zA-Z0-9 _.-]/g, "_");


	var indexformula = saved.formulas.indexOf(formula);
	var indexname = saved.names.indexOf(name);


	if(indexname!=-1){
		if(indexformula==indexname){
			Android.makeNewToast("Already in the dictionary", true).show();
			return true;
		}
		alert("There is already a binding with this name ("+name+") in the dictionary, you can't have two bindings with the same name.");
		return updateBinding(indexname,formula);
	}

	if(indexformula!=-1 && confirm("The binding '"+saved.names[indexformula]+"' has the same formula. Do you prefer to rename that one to '"+name+"'?..."))
		return renameBinding(indexformula,name);


	if(!confirm("Confirm the data to be saved:\nName:\n"+name+"\n\nFormula:\n"+formula))
		return false;

	saved.names.push(name);
	saved.formulas.push(formula);

	setFile(name, formula);

	Android.makeNewToast("Binding saved", true).show();
	return true;
}


function setFile(name, formula){

	var createFile = new File(folder,name+".txt");

	createFile.createNewFile();

	// write to the file

	var createFileWriter = new FileWriter(createFile, false);

	createFileWriter.write(formula);

	createFileWriter.flush();
	createFileWriter.close();

}




//@return true if deleted, false if not
function deleteBinding(index){

	var name=saved.names[index];

	if(!confirm("Are you sure you want to delete the binding '"+ name+"'?"))
		return false


	saved.names.splice(index,1);
	saved.formulas.splice(index,1);

	new File(folder,name+".txt").delete();

	Android.makeNewToast("Binding deleted", true).show();


	return true;

}



//@return true if updated, false if not
function updateBinding(index, formula){

	var name=saved.names[index];

	if(!confirm("Are you sure you want to update the binding '"+name+"'?"))
		return false;


	saved.formulas[index]=formula;

	setFile(name, formula);


	Android.makeNewToast("Binding updated", true).show();

	return true;
}



//@return true if renamed, false if not
function renameBinding(index,name){

	var prename=saved.names[index];

	if(prename==name) return true;

	if(saved.names.indexOf(name)!=-1){
		alert("There is another binding with that name, please choose a different one.");
		return false;
	}

	if(!confirm("Are you sure you want to rename the binding '"+prename+"' to '"+name+"'?"))
		return false;


	saved.names[index]=name;


	new File(folder,prename+".txt")
		.renameTo(new File(folder,name+".txt"));


	Android.makeNewToast("Binding renamed", true).show();

	return true;

}




function loadSaved(){

	saved = {names:[],formulas:[]};

	var files=folder.listFiles();

	for(var t=0;t<files.length;++t){
		var file=files[t];
		saved.names.push(file.getName().substring(0,file.getName().length-4));
		saved.formulas.push(read(file));
	}



	properties=[];
	for(p in Property){
		if(p.substring(0,5)=="PROP_")
		properties.push(p);
	}
	properties.sort();

}



function noItemAlert(){
	alert("no item selected, please run this script from the item you want to use");
}




//cuts the input string if more than MAX characters
function cut(s){
	return s.substring(0,MAX)+(s.length>MAX?"...":"")
}


//reads a file and gets the content as text
function read(file){
	var r=new BufferedReader(new FileReader(file));
	var s="";
	var l;
	while((l=r.readLine())!=null)s+=(l+"\n");
	r.close();
	return s.substring(0, s.length - 1);
}



//function to display a List in a Popup, where the user can select one item. Adapted from Lukas Morawietz's Multi tool script
function list(items,onClickFunction,onCancelFunction,title,data){
	var builder=new AlertDialog.Builder(/*new ContextThemeWrapper(*/LL.getContext()/*, R.style.Theme_DeviceDefault)*/);
	var listener=new DialogInterface.OnClickListener(){
		onClick:function(dialog,which){
			dialog.dismiss();
			setTimeout(function(){onClickFunction(which,data);},0);
			return true;
		}
	}
	var cancelListener = new DialogInterface.OnClickListener(){
		onClick:function(dialog,id){
			dialog.cancel();
			if(onCancelFunction!=null)
				setTimeout(function(){onCancelFunction(data)},0);
		}
	}
	builder.setItems(items,listener);
	builder.setCancelable(true);
	builder.setTitle(title);
	builder.setNegativeButton(onCancelFunction==null?"Exit":"Back",cancelListener);//it has a Cancel Button
	builder.show();
}

</sxh>
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