1 files changed, 86 insertions, 0 deletions
diff --git a/apps/system/js/keyboard_manager.js b/apps/system/js/keyboard_manager.js
new file mode 100644
index 0000000..62aeca7
--- /dev/null
+++ b/apps/system/js/keyboard_manager.js
@@ -0,0 +1,86 @@
+'use strict';
+
+var KeyboardManager = (function() {
+  function getKeyboardURL() {
+    // TODO: Retrieve it from Settings, allowing 3rd party keyboards
+    var host = document.location.host;
+    var domain = host.replace(/(^[\w\d]+\.)?([\w\d]+\.[a-z]+)/, '$2');
+    var protocol = document.location.protocol;
+
+    return protocol + '//keyboard.' + domain + '/';
+  }
+
+  function generateKeyboard(container, keyboardURL, manifestURL) {
+    var keyboard = document.createElement('iframe');
+    keyboard.src = keyboardURL;
+    keyboard.setAttribute('mozbrowser', 'true');
+    keyboard.setAttribute('mozpasspointerevents', 'true');
+    keyboard.setAttribute('mozapp', manifestURL);
+    //keyboard.setAttribute('remote', 'true');
+
+    container.appendChild(keyboard);
+    return keyboard;
+  }
+
+  // Generate a <iframe mozbrowser> containing the keyboard.
+  var container = document.getElementById('keyboard-frame');
+  var keyboardURL = getKeyboardURL() + 'index.html';
+  var manifestURL = getKeyboardURL() + 'manifest.webapp';
+  var keyboard = generateKeyboard(container, keyboardURL, manifestURL);
+
+  // Listen for mozbrowserlocationchange of keyboard iframe.
+  var previousHash = '';
+
+  var urlparser = document.createElement('a');
+  keyboard.addEventListener('mozbrowserlocationchange', function(e) {
+    urlparser.href = e.detail;
+    if (previousHash == urlparser.hash)
+      return;
+    previousHash = urlparser.hash;
+
+    var type = urlparser.hash.split('=');
+    switch (type[0]) {
+      case '#show':
+        var updateHeight = function updateHeight() {
+          container.removeEventListener('transitionend', updateHeight);
+          if (container.classList.contains('hide')) {
+            // The keyboard has been closed already, let's not resize the
+            // application and ends up with half apps.
+            return;
+          }
+
+          var detail = {
+            'detail': {
+              'height': parseInt(type[1])
+            }
+          };
+
+          dispatchEvent(new CustomEvent('keyboardchange', detail));
+        }
+
+        if (container.classList.contains('hide')) {
+          container.classList.remove('hide');
+          container.addEventListener('transitionend', updateHeight);
+          return;
+        }
+
+        updateHeight();
+        break;
+
+      case '#hide':
+        // inform window manager to resize app first or
+        // it may show the underlying homescreen
+        dispatchEvent(new CustomEvent('keyboardhide'));
+        container.classList.add('hide');
+        break;
+    }
+  });
+
+  // For Bug 812115: hide the keyboard when the app is closed here,
+  // since it would take a longer round-trip to receive focuschange
+  window.addEventListener('appwillclose', function closeKeyboard() {
+      dispatchEvent(new CustomEvent('keyboardhide'));
+      container.classList.add('hide');
+  });
+})();
+