Function updateFaviconURI

wvbrowser_ui/controls_ui/tabs.js:136–175

(tabId, src)

}

function updateFaviconURI(tabId, src) {
    let tab = tabs.get(tabId);
    if (tab.favicon != src) {
        let img = new Image();

        // Update favicon element on successful load
        img.onload = () => {
            console.log('Favicon loaded');
            tab.favicon = src;

            if (tabId == activeTabId) {
                updatedFaviconURIHandler(tabId, tab);
            }
        };

        if (src) {
            // Try load from root on failed load
            img.onerror = () => {
                console.log('Cannot load favicon from link, trying with root');
                updateFaviconURI(tabId, '');
            };
        } else {
            // No link for favicon, try loading from root
            try {
                let tabURI = new URL(tab.uri);
                src = `${tabURI.origin}/favicon.ico`;
            } catch(e) {
                console.log(`Could not parse tab ${tabId} URI`);
            }

            img.onerror = () => {
                console.log('No favicon in site root. Using default favicon.');
                tab.favicon = 'img/favicon.png';
                updatedFaviconURIHandler(tabId, tab);
            };
        }

        img.src = src;
    }
}

function updatedFaviconURIHandler(tabId, tab) {
    updateNavigationUI(commands.MG_UPDATE_FAVICON);