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Create workspace id database.

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This commit is contained in:
Neil Fraser 2015-12-09 10:17:40 +01:00
parent 3b3ef79fbd
commit 23251b5187
3 changed files with 37 additions and 1 deletions
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20
core/workspace.js
View file

@ -36,6 +36,9 @@ goog.require('goog.math');
* @constructor
*/
Blockly.Workspace = function(opt_options) {
/** @type {string} */
this.id = Blockly.genUid();
Blockly.Workspace.WorkspaceDB_[this.id] = this;
/** @type {!Object} */
this.options = opt_options || {};
/** @type {boolean} */
@ -56,6 +59,8 @@ Blockly.Workspace.prototype.rendered = false;
*/
Blockly.Workspace.prototype.dispose = function() {
this.clear();
// Remove from workspace database.
delete Blockly.Workspace.WorkspaceDB_[this.id];
};
/**
@ -195,5 +200,20 @@ Blockly.Workspace.prototype.fireChangeEvent = function() {
// NOP.
};
/**
* Database of all workspaces.
* @private
*/
Blockly.Workspace.WorkspaceDB_ = Object.create(null);
/**
* Find the workspace with the specified ID.
* @param {string} id ID of workspace to find.
* @return {Blockly.Workspace} The sought after workspace or null if not found.
*/
Blockly.Workspace.getById = function(id) {
return Blockly.Workspace.WorkspaceDB_[id] || null;
};
// Export symbols that would otherwise be renamed by Closure compiler.
Blockly.Workspace.prototype['clear'] = Blockly.Workspace.prototype.clear;

2
tests/jsunit/block_test.js
View file

@ -19,7 +19,7 @@
*/
'use strict';
function test_getById() {
function test_getBlockById() {
var workspace = new Blockly.Workspace();
var blockA = workspace.newBlock('');
var blockB = workspace.newBlock('');

16
tests/jsunit/workspace_test.js
View file

@ -66,3 +66,19 @@ function test_maxBlocksWorkspace() {
workspace.clear();
assertEquals('Cleared capacity.', 0, workspace.remainingCapacity());
}
function test_getWorkspaceById() {
var workspaceA = new Blockly.Workspace();
var workspaceB = new Blockly.Workspace();
assertEquals('Find workspaceA.', workspaceA,
Blockly.Workspace.getById(workspaceA.id));
assertEquals('Find workspaceB.', workspaceB,
Blockly.Workspace.getById(workspaceB.id));
assertEquals('No workspace found.', null,
Blockly.Workspace.getById('I do not exist.'));
workspaceA.dispose();
assertEquals('Can\'t find workspaceA.', null,
Blockly.Workspace.getById(workspaceA.id));
assertEquals('WorkspaceB exists.', workspaceB,
Blockly.Workspace.getById(workspaceB.id));
}