From 69e9326d4f9fc7478fe1543f0f085c2cecbff5b1 Mon Sep 17 00:00:00 2001
From: Adam Carruthers <adam@bitjutsu.ca>
Date: Thu, 4 Dec 2014 17:06:33 -0500
Subject: [PATCH 1/2] fix #500 - requests keyboard focus when canvas is clicked

The canvas click listener will now check if keyboard-command-area has
focus, and if it does not, it will request it.
---
 src/viewer.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/viewer.js b/src/viewer.js
index 39ed6294..b0ac0e47 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -2265,6 +2265,13 @@ function onBlur(){
 function onCanvasClick( event ) {
     var gestureSettings;
 
+    var haveKeyboardFocus = document.activeElement == this.keyboardCommandArea;
+
+    // If we don't have keyboard focus, request it.
+    if ( !haveKeyboardFocus ) {
+        this.keyboardCommandArea.focus();
+    }
+
     if ( !event.preventDefaultAction && this.viewport && event.quick ) {
         gestureSettings = this.gestureSettingsByDeviceType( event.pointerType );
         if ( gestureSettings.clickToZoom ) {

From 6e49f802487e0f45aecc25b9d45ecd9e296da47a Mon Sep 17 00:00:00 2001
From: Adam Carruthers <adam@bitjutsu.ca>
Date: Mon, 22 Dec 2014 20:29:44 -0700
Subject: [PATCH 2/2] Prevent mobile keyboard from opening

Adds readonly property to .keyboard-command-area to prevent
input, but allow keys to be captured.
---
 src/viewer.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/viewer.js b/src/viewer.js
index b0ac0e47..1ff4e1c9 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -300,6 +300,8 @@ $.Viewer = function( options ) {
         style.left     = "0px";
         style.resize   = "none";
     }(  this.keyboardCommandArea.style ));
+    // Set read-only - hides keyboard on mobile devices, still allows input.
+    this.keyboardCommandArea.readOnly = true;
 
     this.container.insertBefore( this.canvas, this.container.firstChild );
     this.container.insertBefore( this.keyboardCommandArea, this.container.firstChild );