Bug 571070 - [e10s] Add support for cross process keyevents [r=stechz]

mobile/chrome/content/InputHandler.js

@@ -130,13 +130,15 @@ function InputHandler(browserViewContainer) {
   window.addEventListener("click", this, true);
 
   /* these handle key strokes in the browser view (where page content appears) */
-  browserViewContainer.addEventListener("keydown", this, true);
-  browserViewContainer.addEventListener("keyup", this, true);
+  browserViewContainer.addEventListener("keypress", this, false);
+  browserViewContainer.addEventListener("keyup", this, false);
+  browserViewContainer.addEventListener("keydown", this, false);
   browserViewContainer.addEventListener("DOMMouseScroll", this, true);
   browserViewContainer.addEventListener("MozMousePixelScroll", this, true);
   browserViewContainer.addEventListener("contextmenu", this, false);
 
   this.addModule(new MouseModule(this, browserViewContainer));
+  this.addModule(new KeyModule(this, browserViewContainer));
   this.addModule(new ScrollwheelModule(this, browserViewContainer));
 }
 
@@ -1129,6 +1131,39 @@ KineticController.prototype = {
   }
 };
 
+
+/**
+ * Input module for basic key input.
+ */
+function KeyModule(owner, browserViewContainer) {
+  this._owner = owner;
+  this._browserViewContainer = browserViewContainer;
+}
+
+KeyModule.prototype = {
+  getClickerFromElement: function getClickerFromElement(elem) {
+    for (; elem; elem = elem.parentNode)
+      if (elem.customKeySender)
+        break;
+    return (elem) ? elem : null;
+  },
+
+  handleEvent: function handleEvent(evInfo) {
+    if (evInfo.event.type == "keydown" || evInfo.event.type == "keyup" || evInfo.event.type == "keypress") {
+      let keyer = this._browserViewContainer.customKeySender;
+      if (keyer) {
+        keyer.dispatchKeyEvent(evInfo.event);
+        evInfo.event.preventDefault();
+        evInfo.event.stopPropagation();
+      }
+    }
+  },
+
+  /* We don't have much state to reset if we lose event focus */
+  cancelPending: function cancelPending() {}
+};
+
+
 /**
  * Input module for basic scrollwheel input.  Currently just zooms the browser
  * view accordingly.

mobile/chrome/content/browser.js

@@ -375,6 +375,7 @@ var Browser = {
 
     /* handles dispatching clicks on tiles into clicks in content or zooms */
     container.customClicker = new ContentCustomClicker(bv);
+    container.customKeySender = new ContentCustomKeySender(bv);
 
     /* scrolling box that contains tiles */
     let contentScrollbox = this.contentScrollbox = document.getElementById("content-scrollbox");
@@ -1975,6 +1976,28 @@ ContentCustomClicker.prototype = {
     }
 };
 
+/** Watches for mouse events in chrome and sends them to content. */
+function ContentCustomKeySender(browserView) {
+  this._browserView = browserView;
+}
+
+ContentCustomKeySender.prototype = {
+  /** Dispatch a mouse event with chrome client coordinates. */
+  dispatchKeyEvent: function _dispatchKeyEvent(event) {
+    let browser = this._browserView.getBrowser();
+    if (browser) {
+      let fl = browser.QueryInterface(Ci.nsIFrameLoaderOwner).frameLoader;
+      try {
+        fl.sendCrossProcessKeyEvent(event.type, event.keyCode, event.charCode, event.modifiers);
+      } catch (e) {}
+    }
+  },
+
+  toString: function toString() {
+    return "[ContentCustomClicker] { }";
+  }
+};
+
 /** Watches for mouse click in content and redirect them to the best found target **/
 const ElementTouchHelper = {
   get radius() {