implement multiline input

src/skins/vector/css/molecules/MessageComposer.css

@@ -16,29 +16,25 @@ limitations under the License.
 
 .mx_MessageComposer_wrapper {
     max-width: 960px;
-    height: 70px;
     vertical-align: middle;
     margin: auto;
-    background-color: #fff;
     border-top: 2px solid #e1dddd;
 }
 
 .mx_MessageComposer_row {
     display: table-row;
     width: 100%;
-    height: 70px;
 }
 
 .mx_MessageComposer .mx_MessageComposer_avatar {
     display: table-cell;
     padding-left: 10px;
     padding-right: 28px;
-    height: 70px;
+    vertical-align: middle;
 }
 
 .mx_MessageComposer .mx_MessageComposer_avatar .mx_MemberAvatar {
     display: block;
-    margin-top: 18px;
 }
 
 .mx_MessageComposer_input {
@@ -49,11 +45,12 @@ limitations under the License.
 }
 
 .mx_MessageComposer_input textarea {
+    display: block;
     font-size: 15px;
     width: 100%;
-    height: 1.2em;
-    padding-top: 0.7em;
-    padding-bottom: 0.7em;
+    padding: 0px;
+    margin-top: 6px;
+    margin-bottom: 6px;
     border: 0px;
     resize: none;
     outline: none;

src/skins/vector/css/organisms/RoomView.css

@@ -236,8 +236,8 @@ limitations under the License.
     order: 5;
 
     width: 100%;
-    -webkit-flex: 0 0 70px;
-    flex: 0 0 70px;
+    -webkit-flex: 0;
+    flex: 0;
     margin-right: 2px;
 }
 

src/skins/vector/views/molecules/MessageComposer.js

@@ -61,7 +61,7 @@ module.exports = React.createClass({
                             <MemberAvatar member={me} width={24} height={24} />
                         </div>
                         <div className="mx_MessageComposer_input">
-                            <textarea ref="textarea" onKeyDown={this.onKeyDown} placeholder="Type a message..." />
+                            <textarea ref="textarea" rows="1" onKeyDown={this.onKeyDown} onKeyUp={this.onKeyUp} placeholder="Type a message..." />
                         </div>
                         <div className="mx_MessageComposer_upload" onClick={this.onUploadClick}>
                             <img src="img/upload.png" width="17" height="22"/>

src/skins/vector/views/organisms/RoomView.js

@@ -315,7 +315,7 @@ module.exports = React.createClass({
                             {statusBar}
                         </div>
                     </div>
-                    <MessageComposer room={this.state.room} uploadFile={this.uploadFile} />
+                    <MessageComposer room={this.state.room} roomView={this} uploadFile={this.uploadFile} />
                 </div>
             );
         }