SpiderBasic

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// Description : Parent Tracking Helper Library
// Author .....: Webarion
// Version ....: 1.0


// parentStack - stack to track container nesting
// {id:-1,type:-1} - parent desktop
// {id:id,type:0} - parent window
// {id:id,type:1} - parent gadget
spider.webarion = {
  parentStack: [{id: -1, type: -1}],
};

// === INTERCEPTION OPENWINDOW ===
var orig_OpenWindow = spider_OpenWindow;
spider_OpenWindow = function(id, x, y, width, height, title, flags, parent) {
  // immediately call the original function and get its result
  var result = orig_OpenWindow.call(this, id, x, y, width, height, title, flags, parent);

  // Set this window as the current parent
  if (result && typeof result === 'object') {
    spider.webarion.parentStack = [{id: result.id, type: 0}];
  } else {
    spider.webarion.parentStack = [{id: result, type: 0}];
  }

  return result;
};

// === INTERCEPTION OF REGISTER (CREATION OF GADGETS) ===
var orig_Register = spider.gadget.register;
spider.gadget.register = function(g, t, d, dj) {
  // call the original
  var result = orig_Register.call(this, g, t, d, dj);
  // Registering the parent for the gadget
  g.parentInfo = spider.webarion.parentStack.at(-1);
  // If this is a container gadget, make it the current container
  if (t == 11 || t == 16 || t == 28 || t == 33) {
    spider.webarion.parentStack.push({id: g.id, type: 1});
  }
  return result;
};

// === INTERCEPTION OPENGADGETLIST ===
var orig_OpenGadgetList = spider_OpenGadgetList;
spider_OpenGadgetList = function(gadgetId, flags) {
  // call the original
  orig_OpenGadgetList.call(this, gadgetId, flags);
  // Save the current container to the stack and install a new one
  spider.webarion.parentStack.push({id: gadgetId, type: 1});
};

// === INTERCEPTION CLOSEGADGETLIST ===
var orig_CloseGadgetList = spider_CloseGadgetList;
spider_CloseGadgetList = function() {
  orig_CloseGadgetList.call(this);
  
 // Remove the current parent from the stack
  spider.webarion.parentStack.pop();
};

// === INTERCEPTION USEGADGETLIST ===
var orig_UseGadgetList = spider_UseGadgetList;
spider_UseGadgetList = function(window) {
  spider.webarion.parentStack = [{id: window.id, type: 0}];
  return orig_UseGadgetList.call(this, window);
};

// Intercepting FreeGadget is not implemented.

// --------------------------------------------------------------

function spider_GetGadgetParent(gadget) {
  return spider.gadget.objects.Get(gadget).parentInfo.id;
}  

function spider_GetGadgetParentType(gadget) {
  return spider.gadget.objects.Get(gadget).parentInfo.type;
}