tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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tabs.js (2987B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
      4 
      5 /**
      6 * Redux actions for the editor tabs
      7 */
      8 
      9 import { selectSource } from "./sources/index";
     10 
     11 import { getSelectedLocation, getOpenedSources } from "../selectors/index";
     12 
     13 export function addTab(source) {
     14  return {
     15    type: "ADD_TAB",
     16    source,
     17  };
     18 }
     19 
     20 export function moveTab(url, tabIndex) {
     21  return {
     22    type: "MOVE_TAB",
     23    url,
     24    tabIndex,
     25  };
     26 }
     27 
     28 export function moveTabBySourceId(sourceId, tabIndex) {
     29  return {
     30    type: "MOVE_TAB_BY_SOURCE_ID",
     31    sourceId,
     32    tabIndex,
     33  };
     34 }
     35 
     36 export function closeTabForSource(source) {
     37  return ({ dispatch }) => {
     38    dispatch(closeTabsForSources([source]));
     39  };
     40 }
     41 
     42 export function closeTabsForSources(sources) {
     43  return ({ dispatch, getState }) => {
     44    if (!sources.length) {
     45      return;
     46    }
     47 
     48    // If we are removing the tabs for the selected location,
     49    // we need to select another source
     50    const newSourceToSelect = getNewSourceToSelect(getState(), sources);
     51 
     52    dispatch({ type: "CLOSE_TABS_FOR_SOURCES", sources });
     53 
     54    dispatch(selectSource(newSourceToSelect));
     55  };
     56 }
     57 
     58 /**
     59 * Compute the potential new source to select while closing tabs for a given set of sources.
     60 *
     61 * @param {object} state
     62 *        Redux state object.
     63 * @param {Array<Source>} closedSources
     64 *        Ordered list of sources which should be closed.
     65 *        Should be a consecutive list of tabs matching the order of tabs reducer.
     66 */
     67 function getNewSourceToSelect(state, closedSources) {
     68  const selectedLocation = getSelectedLocation(state);
     69  // Do not try to select any source if none was selected before
     70  if (!selectedLocation) {
     71    return null;
     72  }
     73  let selectedSource = selectedLocation.source;
     74 
     75  // When a source is pretty printed, the tab always refer to its minimized/generated source
     76  if (selectedSource.isPrettyPrinted) {
     77    selectedSource = selectedSource.generatedSource;
     78  }
     79 
     80  // Keep selecting the same source if we aren't removing the currently selected source
     81  if (!closedSources.includes(selectedSource)) {
     82    return selectedSource;
     83  }
     84  const openedSources = getOpenedSources(state);
     85  const selectedSourceIndex = openedSources.indexOf(selectedSource);
     86 
     87  // Find the first source **after** the currently selected one, which will still be open and select it
     88  for (
     89    let index = selectedSourceIndex + 1;
     90    index < openedSources.length;
     91    index++
     92  ) {
     93    const source = openedSources[index];
     94    if (!closedSources.includes(source)) {
     95      return source;
     96    }
     97  }
     98 
     99  // Otherwise find the last source **before** the currently selected one.
    100  for (let index = selectedSourceIndex - 1; index >= 0; index--) {
    101    const source = openedSources[index];
    102    if (!closedSources.includes(source)) {
    103      return source;
    104    }
    105  }
    106 
    107  // It looks like we removed all the tabs
    108  return null;
    109 }