[Chromoting] Let the webapp put items on the clipboard.

BUG=117473

Review URL: https://chromiumcodereview.appspot.com/9969034

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@130146 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 20 insertions, 0 deletions

diff --git a/remoting/webapp/remoting.js b/remoting/webapp/remoting.js
index 4266e0b..2780e6b 100644
--- a/remoting/webapp/remoting.js
+++ b/remoting/webapp/remoting.js
@@ -57,6 +57,7 @@ remoting.init = function() {
   // The plugin's onFocus handler sends a paste command to |window|, because
   // it can't send one to the plugin element itself.
   window.addEventListener('paste', pluginGotPaste_, false);
+  window.addEventListener('copy', pluginGotCopy_, false);
 
   if (isHostModeSupported_()) {
     var noShare = document.getElementById('chrome-os-no-share');
@@ -136,6 +137,8 @@ remoting.clearOAuth2 = function() {
   remoting.setMode(remoting.AppMode.UNAUTHENTICATED);
 };
 
+// TODO(simonmorris): If possible, make the next two functions return void.
+
 /**
  * Callback function called when the browser window gets a paste operation.
  *
@@ -151,6 +154,23 @@ function pluginGotPaste_(eventUncast) {
 }
 
 /**
+ * Callback function called when the browser window gets a copy operation.
+ *
+ * @param {Event} eventUncast
+ * @return {boolean}
+ */
+function pluginGotCopy_(eventUncast) {
+  var event = /** @type {remoting.ClipboardEvent} */ eventUncast;
+  if (event && event.clipboardData) {
+    if (remoting.clipboard.toOs(event.clipboardData)) {
+      // The default action may overwrite items that we added to clipboardData.
+      event.preventDefault();
+    }
+  }
+  return false;
+}
+
+/**
  * If the user is authenticated, but there is no email address cached, get one.
  */
 function refreshEmail_() {