Method createScrollToBottomButton

chat/app.js:1125–1179

* Creates the scroll-to-bottom button element

()

                try { await this.runtime.discardUsagePreview?.({ sessionId: session.id, requestId: id }); }
                catch (error) { console.warn('Could not clear the local usage preview:', error?.message || 'Storage unavailable'); }
            }
        }
    }

    /** Whether an extension has mounted a node matching `selector` into `name`. */
    hasExtensionSlotNode(name, selector) {
        return this.extensionSlots.hasMatchingNode(name, selector);
    }

    /** Notify `listener` whenever the nodes mounted into `name` change. */
    subscribeExtensionSlot(name, listener) {
        return this.extensionSlots.subscribe(name, listener);
    }

    detectInitialLinkContext() {
        try {
            const url = new URL(window.location.href);
            if (/^\/tickets\/[^/?#]+/i.test(url.pathname)) {
                return true;
            }

            const params = url.searchParams;
            return params.has('tickets') || params.has('sharing') || params.has('s');
        } catch (error) {
            return false;
        }
    }

    getDefaultModelId() {
        const session = this.getCurrentSession();
        const fallbackModel = this.getFallbackModelEntry(session);
        return fallbackModel?.id || this.inferenceService.getDefaultModelId(session);
    }

    getDefaultModelName() {
        const session = this.getCurrentSession();
        const fallbackModel = this.getFallbackModelEntry(session);
        return fallbackModel?.name || this.inferenceService.getDefaultModelName(session);
    }

    getDisabledModelSet(session = this.getCurrentSession()) {
        return new Set(this.modelConfiguration.getDisabledModels(session));
    }

    filterDisabledModels(models, session = this.getCurrentSession()) {
        return filterDisabledModelsValue(models, this.getDisabledModelSet(session));
    }

    getModelsForSession(session) {
        const backendId = session?.inferenceBackend || this.inferenceService?.getDefaultBackendId?.();
        if (!this.state.modelsBackendId || this.state.modelsBackendId === backendId) return this.state.models;
        return this.modelCatalogsByBackend?.get(backendId)
            || this.inferenceService.getCachedModels?.(session) || [];
    }

    getFallbackModelEntry(session) {
        const usePinnedDefaults = !session?.inferenceBackend ||
            session.inferenceBackend === this.inferenceService.getDefaultBackendId();