Have you read this post:
http://www.softwareishard.com/blog/firebug-tutorial/extending-firebug-inspector-part-x/
Does it help?
Honza
On Wednesday, December 5, 2012 6:22:13 PM UTC+1, Patrick Nolan wrote:
>
> I'm writing a plugin that is reusing the inspector code in firebug. Since
> I need to change some of the behavior of how the inspector works, I thought
> the best course of action would be to extend Firebug.Inspector and override
> the functions I need to change. I started out with overriding
> onInspectingClick, and I am not seeing the results I expect when moving
> the mouse cursor around the page. I do see my sysout statement
> (FBTrace.sysout("**
> QRUCIBL: onInsp[...])is showing up in FBTrace every time I click, but as
> I mouseover, I do not see the highlighting nor is the HTML tab is scrolling
> to dom element that the mouse is on top of. In addition, as I mouseover the
> page, the error console repeatedly shows "TypeError: context is null \
> Source File: chrom://firebug/content/html/inspector.js". Can anyone comment
> on the errors of my approach and guide me to overcoming these problems?
> Thank you!
>
> *.../content/qruciblInspector.js:*
> define([
> "firebug/lib/lib",
> "firebug/lib/trace",
> "firebug/html/inspector",
> ],
> function(FBL, FBTrace) {
>
> Firebug.QruciblInspector = FBL.extend(Firebug.Inspector,
> {
> onInspectingClick: function(event)
> {
> if (FBTrace.DBG_INSPECT) {
> FBTrace.sysout("onInspectingClick event", event);
> FBTrace.sysout("** QRUCIBL: onInspectingClick event", event);
> }
>
> var win = event.currentTarget.defaultView;
> if (win)
> {
> win = Win.getRootWindow(win);
> this.detachClickInspectListeners(win);
> }
>
> Events.cancelEvent(event);
> }
> });
>
> return Firebug.QruciblInspector;
>
> });
>
> The overridden inspector is called from a new panel I added. A button on
> that panel executes the Firebug.QruciblInspector.toggleInspecting function
> when clicked:
>
> *.../content/myPanel.js:*
> [snip]
> /**
> * Extends toolbar for this panel.
> */
> getPanelToolbarButtons: function()
> {
> var buttons = [];
>
> buttons.push({
> label: "qrucibl.button.recordflow.label",
> tooltiptext: "qrucibl.button.recordflow.tooltip",
> command: FBL.bindFixed(this.onFlowRecord, this)
> });
>
> return buttons;
> },
>
> onFlowRecord: function()
> {
> Firebug.QruciblInspector.toggleInspecting(Firebug.currentContext);
> }
> [snip]
>
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