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Scroll toolbox with LEFT/RIGHT in horizontalLayout

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Batalov Sergey 2016-07-19 09:27:58 +05:00
parent 5c2c4d8400
commit 2afd0171a1
1 changed files with 23 additions and 0 deletions
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23
core/toolbox.js
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@ -542,6 +542,7 @@ Blockly.Toolbox.TreeControl.prototype.setSelectedItem = function(node) {
Blockly.Toolbox.TreeNode = function(toolbox, html, opt_config, opt_domHelper) {
goog.ui.tree.TreeNode.call(this, html, opt_config, opt_domHelper);
if (toolbox) {
this.horizontalLayout_ = toolbox.horizontalLayout_;
var resize = function() {
// Even though the div hasn't changed size, the visible workspace
// surface of the workspace has, so we may need to reposition everything.
@ -593,6 +594,28 @@ Blockly.Toolbox.TreeNode.prototype.onDoubleClick_ = function(e) {
// NOP.
};
/**
* Remap event.keyCode in horizontalLayout so that arrow
* keys work properly and call original onKeyDown handler.
* @param {!goog.events.BrowserEvent} e The browser event.
* @return {boolean} The handled value.
* @override
* @private
*/
Blockly.Toolbox.TreeNode.prototype.onKeyDown = function(e) {
if (this.horizontalLayout_) {
var map = {};
map[goog.events.KeyCodes.RIGHT] = goog.events.KeyCodes.DOWN;
map[goog.events.KeyCodes.LEFT] = goog.events.KeyCodes.UP;
map[goog.events.KeyCodes.UP] = goog.events.KeyCodes.LEFT;
map[goog.events.KeyCodes.DOWN] = goog.events.KeyCodes.RIGHT;
var newKeyCode = map[e.keyCode]
e.keyCode = newKeyCode ? newKeyCode : e.keyCode;
}
return Blockly.Toolbox.TreeNode.superClass_.onKeyDown.call(this, e);
};
/**
* A blank separator node in the tree.
* @param {Object=} config The configuration for the tree. See