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gregtatum / z-index-devtool

A UCOSP project for building a Z-Index Devtool.
Mozilla Public License 2.0
31 stars 7 forks source link

Oct 27 - Nov 3 #52

Closed gregtatum closed 8 years ago

gregtatum commented 8 years ago

Bria: Selected Node

jreinlein commented 8 years ago

Point of discussion for next meeting:

I started fixing up the HTML example files because their style was affecting the entire page (including the other pane of the split view; the tree itself), but then it got me thinking... IRL, will we be passing in the entire HTML/CSS of a page or would a user have to curate it slightly first?

Alternatively, is there a way to keep the CSS contained to a certain portion of the page? I tried <style scoped> but it wasn't successful.

gregtatum commented 8 years ago

In a real devtools situation we'd have a messaging system. Firefox uses a whole fancy complicated Remote Debugging Protocol that even has a spec: https://wiki.mozilla.org/Remote_Debugging_Protocol

For our cases we can could create a simple messaging system to pass messages between the z-index tool, and an iframe that loads the content. The API for this is the window.postMessage: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage

gregtatum commented 8 years ago

Web Extensions if you're not familiar is the cross-browser specification built off of Chrome's extension system. Firefox and other browsers have been implementing the API so that extensions can work across browsers. They have a messaging model that also features content scripts and background scripts: https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Content_scripts

Web Extensions are interesting because they are a really nice way to write addons, but the security model for Web Extensions, and the old style add-ons (which is what our devtools uses) don't mix and match. It's probably easier and nicer to use Web Extensions, as when you use the old-style add-ons you get a huge amount of raw functionality, but it's a bit wild west in how it works.

gregtatum commented 8 years ago

Good job team!