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updated undo command to only track when a command changes the tree

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This commit is contained in:
Jack Bird 2023-07-18 19:19:56 +01:00
parent a0a6e922cb
commit 6258ed501e
1 changed files with 12 additions and 2 deletions
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14
src/js/sandbox/index.js
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@ -67,7 +67,8 @@ var Sandbox = Backbone.View.extend({
initGitShim: function(options) { initGitShim: function(options) {
this.gitShim = new GitShim({ this.gitShim = new GitShim({
beforeCB: this.beforeCommandCB.bind(this) beforeCB: this.beforeCommandCB.bind(this),
afterCB: this.afterCommandCB.bind(this)
}); });
}, },
@ -113,12 +114,21 @@ var Sandbox = Backbone.View.extend({
}, },
beforeCommandCB: function(command) { beforeCommandCB: function(command) {
this._treeBeforeCommand = this.mainVis.gitEngine.printTree();
},
afterCommandCB: function(command) {
this.pushUndo(); this.pushUndo();
}, },
pushUndo: function() { pushUndo: function() {
let currentTree = this.mainVis.gitEngine.printTree();
if(currentTree === this._treeBeforeCommand) {
return;
}
// go ahead and push the three onto the stack // go ahead and push the three onto the stack
this.undoStack.push(this.mainVis.gitEngine.printTree()); this.undoStack.push(this._treeBeforeCommand);
}, },
undo: function(command, deferred) { undo: function(command, deferred) {