popup.js

'use strict';

const tryToFocusOnInput = () => {
  const inputEls =
      Array.prototype.slice.call(document.querySelectorAll('input'));
  _.remove(inputEls, inputEl => inputEl.offsetParent === null);
  if (inputEls.length) {
    inputEls[0].focus();
  };
};

const getStashEl = el => el.closest('.stash');

/** Moves focus to next/previous stash. `direction` is 'up' or 'down'. */
const moveFocus = (direction, event) => {
  if (document.activeElement instanceof Element) {
    const stash = getStashEl(document.activeElement);
    if (stash) {
      const next =
          stash[{up: 'previousElementSibling',
                 down: 'nextElementSibling'}[direction]];
      if (next) {
        next.focus();
        event.preventDefault();
      }
      return;
    }
  }
  const first = document.getElementById(
      'stash-list')[{up: 'lastElementChild',
                     down: 'firstElementChild'}[direction]];
  if (first && first !== document.activeElement) {
    first.focus();
    event.preventDefault();
  }
};

const init = async function() {
  const [highlightedTabs, windowTabs, stashes, messages, originalStashName] =
      await Promise.all([
        chrome.promise.tabs.query({currentWindow: true, highlighted: true}),
        chrome.promise.tabs.query({currentWindow: true}), getStashes(),
        getMessages(), getOriginalStashName()
      ]);

  const mode = (() => {
    if (windowTabs.length == 1) {
      return 'singleTab';
    } else {
      if (highlightedTabs.length > 1) {
        return 'selection';
      } else {
        return 'default';
      }
    }
  })();

  const stashNameTab = (() => {
    if (mode == 'singleTab' && originalStashName) {
      return originalStashName;
    } else {
      return highlightedTabs[0].title || '';
    }
  })();

  Vue.filter('tabs', numTabs => {
    return numTabs.toString() + (numTabs == 1 ? ' tab' : ' tabs');
  });

  Vue.filter('from-now', timestamp => {
    return moment(timestamp).fromNow();
  });

  const vm = new Vue({
    el: 'html',
    data: {
      mode: mode,
      highlightedTabsLenth: highlightedTabs.length,
      stashNameWindow: originalStashName,
      stashNameTab: stashNameTab,
      stathNameTabs: originalStashName,
      stashes: stashes,
      messages: messages,
      modifierKey: (navigator.platform.toLowerCase().indexOf('mac') >= 0) ?
          'Command' :
          'Control',
      stashNamePlaceholder: stashNamePlaceholder,
      topUpTabsLabel: mode == 'selection' ?
          highlightedTabs.length.toString() + ' tabs' :
          'current tab'
    },
    methods: {
      stashWindow: function() {
        saveStash(
            this.stashNameWindow, windowTabs,
            _.findIndex(windowTabs, {'active': true}));
      },
      stashTab: function() {
        saveStash(this.stashNameTab, highlightedTabs, 0);
      },
      stashTabs: function() {
        saveStash(
            this.stathNameTabs, highlightedTabs,
            _.findIndex(highlightedTabs, {'active': true}));
      },
      topUp: function(stashId) {
        topUp(stashId, highlightedTabs);
      },
      unstash: function(stashId, stash) {
        // Have to call the function in the background page because the popup
        // closes too early.
        chrome.extension.getBackgroundPage().unstash(
            stashId, stash, !this.messages.openStash);
        // For better visual transition.
        window.close();
      },
      deleteStash: deleteStash,
      gotIt: function() {
        setMessageRead('welcome');
        setTimeout(tryToFocusOnInput, 100);
      },
      isEmpty: _.isEmpty,
      handleFocus: function(event) {
        getStashEl(event.target).classList.add('focused');
      },
      handleBlur: function(event) {
        const stashOut = getStashEl(event.target);
        if (event.relatedTarget instanceof Element) {
          const stashIn = getStashEl(event.relatedTarget);
          if (stashIn === stashOut) {
            return;
          };
        }
        stashOut.classList.remove('focused');
      },
      up: function(event) {
        moveFocus('up', event);
      },
      down: function(event) {
        moveFocus('down', event);
      }
    },
    ready: function() {
      tryToFocusOnInput();
    }
  });

  chrome.storage.onChanged.addListener(async(changes, areaName) => {
    const [stashes, messages] =
        await Promise.all([getStashes(), getMessages()]);
    vm.stashes = stashes;
    vm.messages = messages;
  });

  // Workaround for https://bugs.chromium.org/p/chromium/issues/detail?id=307912
  setTimeout(() => {
    document.body.style.width = '421px';
  }, 200)
};

init();