// Page-global variable definitions.
{
var inputCounter = 0;
}

function generateDiagnosticDiv(elem) {
  var div = document.createElement("div");
  div.style.border = "1px solid black";
  div.style.borderRadius = "5px";
  //div.style.mozBorder
  div.style.paddingTop = "5px";
  div.style.paddingLeft = "5px";
  div.style.paddingRight = "5px";
  div.style.paddingBottom = "5px";
  div.appendChild(elem);
  div.appendChild(document.createElement("p"));

  var elemId = elem.id;

  // Attachment button
  var attachBtn = document.createElement("input");
  attachBtn.type     = 'button';
  attachBtn.id       = 'attach_' + elemId;
  attachBtn.onclick = function() {
    kmw.attachToControl(document.getElementById(elemId));
    var attached = kmw.isAttached(elem);
    document.getElementById('attachment_' + elemId).textContent = " Currently " + (attached ? "attached." : "detached.");
    if(elem.tagName.toLowerCase() != "iframe") {
      document.getElementById("independence_" + elemId).textContent = attached ? " Using globally-selected keyboard." : '';
    }
  };
  attachBtn.value   = 'Attach';
  div.appendChild(attachBtn);

  // Detachment button
  var detachBtn = document.createElement("input");
  detachBtn.type     = 'button';
  detachBtn.id       = 'detach_' + elemId;
  detachBtn.onclick = function() {
    kmw.detachFromControl(document.getElementById(elemId));
    var attached = kmw.isAttached(elem);
    document.getElementById('attachment_' + elemId).textContent = " Currently " + (attached ? "attached." : "detached.");
    if(!attached) {
      document.getElementById('independence_' + elemId).textContent = "";
    }
  };
  detachBtn.value   = 'Detach';
  div.appendChild(detachBtn);

  // We need some extra space to properly detect iframe attachment.
  var attachTimer = elem.tagName.toLowerCase() == "iframe" ? 50 : 1;

  var attachLabel = document.createElement("a");
  attachLabel.id  = 'attachment_' + elemId;
  window.setTimeout(function() {
    attachLabel.textContent = " Currently " + (kmw.isAttached(elem) ? "attached." : "detached.");
  }, attachTimer);
  div.appendChild(attachLabel);

  div.appendChild(document.createElement("p"));

  // Enablement button
  var enableBtn = document.createElement("input");
  enableBtn.type     = 'button';
  enableBtn.id       = 'enable_' + elemId;
  enableBtn.onclick = function() {
    kmw.enableControl(document.getElementById(elemId));
  };
  enableBtn.value   = 'Enable';
  div.appendChild(enableBtn);

  // Disablement button
  var disableBtn = document.createElement("input");
  disableBtn.type     = 'button';
  disableBtn.id       = 'disable_' + elemId;
  disableBtn.onclick = function() {
    kmw.disableControl(document.getElementById(elemId));
  };
  disableBtn.value   = 'Disable';
  div.appendChild(disableBtn);

  var enabledLabel = document.createElement("a");
  enabledLabel.id  = 'enablement_' + elemId;
  enabledLabel.textContent = " Currently enabled.";

  // We must rely on MutationObservers to stay current about enablement.
  var observationTarget = elem;
  var observationConfig = {attributes: true, attributeFilter: ['class']};

  var enablementObserver = new MutationObserver(function(mutations) {
    var isDisabled = mutations[0].target.className.indexOf('kmw-disabled') >= 0;
    enabledLabel.textContent = (isDisabled ? " Currently disabled." : " Currently enabled.");
  });
  enablementObserver.observe(observationTarget, observationConfig);

  div.appendChild(enabledLabel);
  div.appendChild(document.createElement("p"));

  if(elem.tagName.toLowerCase() != "iframe") {
    // Set Keyboard button
    var setBtn = document.createElement("input");
    setBtn.type     = 'button';
    setBtn.id       = 'set_' + elemId;
    setBtn.onclick = function() {
      kmw.setKeyboardForControl(document.getElementById(elemId), 'dzongkha', 'dz');

      if(kmw.isAttached(elem)) {
        kbdLabel.textContent = " Using independently-tracked keyboard.";
      }
    };
    setBtn.value   = 'Set to Dzongkha';
    div.appendChild(setBtn);

    // Clear Keyboard button
    var clearBtn = document.createElement("input");
    clearBtn.type     = 'button';
    clearBtn.id       = 'clear_' + elemId;
    clearBtn.onclick = function() {
      kmw.setKeyboardForControl(document.getElementById(elemId), null, null);

      if(kmw.isAttached(elem)) {
        kbdLabel.textContent = " Using globally-selected keyboard.";
      }
    };
    clearBtn.value   = 'Clear Keyboard';
    div.appendChild(clearBtn);

    var kbdLabel = document.createElement("a");
    kbdLabel.id  = 'independence_' + elemId;
    window.setTimeout(function () {
      if(kmw.isAttached(elem)) {
        var attached = kmw.isAttached(elem);
        kbdLabel.textContent = attached ? " Using globally-selected keyboard." : '';
      }
    }, 1);
    div.appendChild(kbdLabel);
  }

  return div;
}

function addInput() {
  var masterDiv = document.getElementById('DynamicInputs');
  var newInput = document.createElement("input");
  var i = inputCounter++;

  newInput.id = 'input' + i;
  newInput.className = 'test';
  newInput.placeholder = "Dynamic area #" + i + "!";

  var newDiv = generateDiagnosticDiv(newInput);

  masterDiv.appendChild(newDiv);
}

function addText() {
  var masterDiv = document.getElementById('DynamicTextareas');
  var newTextArea = document.createElement("textarea");
  var i = inputCounter++;

  newTextArea.id = 'textarea' + i;
  newTextArea.className = 'test';
  newTextArea.placeholder = "Dynamic area #" + i + "!";

  var newDiv = generateDiagnosticDiv(newTextArea);

  masterDiv.appendChild(newDiv);
}

function addIFrame() {
  var masterDiv = document.getElementById('DynamicIFrames');
  var frame = document.createElement("iframe");
  var i = inputCounter++;

  frame.height = "100";
  frame.src = "iframe.html";
  frame.id = 'iframe' + i;

  var newDiv = generateDiagnosticDiv(frame);
  masterDiv.appendChild(newDiv);
}

function addDesignIFrame() {
  var masterDiv = document.getElementById('DynamicDesignFrames');
  var frame = document.createElement("iframe");
  var i = inputCounter++;
  
  frame.height = "100";
  frame.id = 'designIFrame' + i;
  frame.src = "editableFrame.html";
  
  // The iframe's document sets design-mode on with its body.onload handler.
 
  var newDiv = generateDiagnosticDiv(frame);
  masterDiv.appendChild(newDiv);
  return frame.id;
}

function addEditable() {
  var masterDiv = document.getElementById('DynamicEditables');
  var editable = document.createElement("div");
  var i = inputCounter++;

  editable.contentEditable = true;
  editable.textContent = "Edit me!";
  editable.id = 'editable' + i;
  editable.style.width="500px";

  var newDiv = generateDiagnosticDiv(editable);

  masterDiv.appendChild(newDiv);
}