Skip to content

Instantly share code, notes, and snippets.

@Infocatcher

Infocatcher/openTabWithScrollAndZoom.js

Created November 12, 2014 07:38
Download ZIP

Revisions

  1. Infocatcher created this gist Nov 12, 2014.
    34 changes: 34 additions & 0 deletions openTabWithScrollAndZoom.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,34 @@
    var textZoom = 1.5;
    var fullZoom = 1;
    var scrollX = 0;
    var scrollY = 200;

    var tab = gBrowser.addTab("https://addons.mozilla.org/");
    var browser = tab.linkedBrowser;

    if(scrollX || scrollY) {
    var scrollTimer = setInterval(function() {
    var win = browser.contentWindow;
    win.scrollTo(scrollX, scrollY);
    if(win.scrollX == scrollX && win.scrollY == scrollY) {
    clearInterval(scrollTimer);
    scrollTimer = 0;
    browser.removeEventListener("load", onLoad, true);
    }
    }, 50);
    var onLoad = function(e) {
    browser.removeEventListener("load", onLoad, true);
    if(scrollTimer) {
    clearInterval(scrollTimer);
    scrollTimer = 0;
    }
    browser.contentWindow.scrollTo(scrollX, scrollY);
    };
    browser.addEventListener("load", onLoad, true);
    }
    if(textZoom != 1 || fullZoom != 1) {
    // Note: correctly works only with browser.zoom.siteSpecific = false
    var viewer = browser.markupDocumentViewer;
    viewer.textZoom = textZoom;
    viewer.fullZoom = fullZoom;
    }