Web Inspector: Adding existing key in DOMStorageItemsView leaves it inconsistent state

[Vivek Galatage]

Steps:
1. Create some local storage entries. e.g. { "item1": "value1", "item2": "value2", ... }
2. Navigate to Resources panel and localStorage view
3. Using the last row of the grid (creation node), just enter the value to be one of the existing keys [ "key1", "key2" ... ]
4. Press enter

Expected outcome:
Only one entry per key should be shown

Actual Outcome:
Multiple entries are listed

Patch follows.

[Vivek Galatage]

Created attachment 190687 [details]
Patch

[Alexander Pavlov (apavlov)]

Comment on attachment 190687 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=190687&action=review

> Source/WebCore/inspector/front-end/DOMStorageItemsView.js:149
> +                if (!keyFound) {

Please use early returns as extensively as possible. It improves the code readability and makes it [a bit more] error-proof.

if (keyFound) {
    childNode.removeSelf();
    continue;
}

keyFound = true;
childNode.data.value = storageData.newValue;
childNode.refresh();
childNode.select();
childNode.reveal();
this.deleteButton.visible = true;

[Vivek Galatage]

Created attachment 190691 [details]
Patch

[Alexander Pavlov (apavlov)]

Comment on attachment 190691 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=190691&action=review

> Source/WebCore/inspector/front-end/DOMStorageItemsView.js:150
> +                    childNode.parent.removeChild(childNode);

Sorry for missing this. You can replace "childNode.parent" by "rootNode", right?

[Vivek Galatage]

Created attachment 190692 [details]
Patch

[Vivek Galatage]

Created attachment 190694 [details]
Patch

[WebKit Review Bot]

Comment on attachment 190694 [details]
Patch

Clearing flags on attachment: 190694

Committed r144317: <http://trac.webkit.org/changeset/144317>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.