Allow zooming of non-scrolling workspaces.

core/flyout.js

@@ -652,6 +652,9 @@ Blockly.Flyout.prototype.createBlockFunc_ = function(originBlock) {
     // Scale the scroll (getSvgXY_ did not do this).
     xyNew.x += workspace.scrollX / workspace.scale - workspace.scrollX;
     xyNew.y += workspace.scrollY / workspace.scale - workspace.scrollY;
+    if (workspace.toolbox_ && !workspace.scrollbar) {
+      xyNew.x += workspace.toolbox_.width / workspace.scale;
+    }
     block.moveBy(xyOld.x - xyNew.x, xyOld.y - xyNew.y);
     if (flyout.autoClose) {
       flyout.hide();

core/inject.js

@@ -376,6 +376,8 @@ Blockly.createMainWorkspace_ = function(svg, options) {
   var mainWorkspace = new Blockly.WorkspaceSvg(options);
   mainWorkspace.scale = options.zoomOptions.startScale;
   svg.appendChild(mainWorkspace.createDom('blocklyMainBackground'));
+  // A null translation will also apply the correct initial scale.
+  mainWorkspace.translate(0, 0);
   mainWorkspace.markFocused();
 
   if (!options.readOnly && !options.hasScrollbars) {

core/workspace_svg.js

@@ -317,7 +317,7 @@ Blockly.WorkspaceSvg.prototype.getBubbleCanvas = function() {
  * @param {number} y Vertical translation.
  */
 Blockly.WorkspaceSvg.prototype.translate = function(x, y) {
-  var translation = 'translate(' + x + ',' + y + ')' +
+  var translation = 'translate(' + x + ',' + y + ') ' +
       'scale(' + this.scale + ')';
   this.svgBlockCanvas_.setAttribute('transform', translation);
   this.svgBubbleCanvas_.setAttribute('transform', translation);
@@ -922,7 +922,11 @@ Blockly.WorkspaceSvg.prototype.zoom = function(x, y, type) {
   this.scrollX = matrix.e - metrics.absoluteLeft;
   this.scrollY = matrix.f - metrics.absoluteTop;
   this.updateGridPattern_();
+  if (this.scrollbar) {
     this.scrollbar.resize();
+  } else {
+    this.translate(0, 0);
+  }
   Blockly.hideChaff(false);
   if (this.flyout_) {
     // No toolbox, resize flyout.
@@ -959,8 +963,12 @@ Blockly.WorkspaceSvg.prototype.zoomReset = function(e) {
   }
   // Center the workspace.
   var metrics = this.getMetrics();
+  if (this.scrollbar) {
     this.scrollbar.set((metrics.contentWidth - metrics.viewWidth) / 2,
         (metrics.contentHeight - metrics.viewHeight) / 2);
+  } else {
+    this.translate(0, 0);
+  }
   // This event has been handled.  Don't start a workspace drag.
   e.stopPropagation();
 };

tests/playground.html

@@ -86,7 +86,7 @@ function start() {
            zoom:
              {controls: true,
               wheel: true,
-              startScale: 2.0,
+              startScale: 1.0,
               maxScale: 4,
               minScale: .25,
               scaleSpeed: 1.1