Method onKeyEvent

pages/vomnibar_page.js:186–250

(event)

  }

  async onKeyEvent(event) {
    const action = this.actionFromKeyEvent(event);
    if (!action) {
      return;
    }

    if (action === "dismiss") {
      this.hide();
    } else if (["tab", "down"].includes(action)) {
      if (
        (action === "tab") &&
        (this.completerName === "omni") &&
        !this.seenTabToOpenCompletionList &&
        (this.input.value.trim().length === 0)
      ) {
        this.seenTabToOpenCompletionList = true;
        this.update();
      } else if (this.completions.length > 0) {
        this.selection += 1;
        if (this.selection === this.completions.length) {
          this.selection = this.initialSelectionValue;
        }
        this.updateSelection();
      }
    } else if (action === "up") {
      this.selection -= 1;
      if (this.selection < this.initialSelectionValue) {
        this.selection = this.completions.length - 1;
      }
      this.updateSelection();
    } else if (action === "enter") {
      await this.handleEnterKey(event);
    } else if (action === "ctrl-enter") {
      // Populate the vomnibar with the current selection's URL.
      if (!this.isUserSearchEngineActive() && (this.selection >= 0)) {
        if (this.previousInputValue == null) {
          this.previousInputValue = this.input.value;
        }
        this.input.value = this.completions[this.selection]?.url;
        this.input.scrollLeft = this.input.scrollWidth;
      }
    } else if (action === "delete") {
      if (this.isUserSearchEngineActive() && (this.input.selectionEnd === 0)) {
        // Normally, with custom search engines, the keyword (e.g. the "w" of "w query terms") is
        // suppressed. If the cursor is at the start of the input, then reinstate the keyword (the
        // "w").
        const keyword = this.activeUserSearchEngine.keyword;
        this.input.value = keyword + this.input.value.trimStart();
        this.input.selectionStart = this.input.selectionEnd = keyword.length;
        this.activeUserSearchEngine = null;
        this.update();
      } else if (this.seenTabToOpenCompletionList && (this.input.value.trim().length === 0)) {
        this.seenTabToOpenCompletionList = false;
        this.update();
      } else {
        return; // Do not suppress event.
      }
    } else if ((action === "remove") && (this.selection >= 0)) {