8 files changed, 409 insertions, 0 deletions
diff --git a/src/background/shared/bookmarks.js b/src/background/shared/bookmarks.js
new file mode 100644
index 0000000..5e7927b
--- /dev/null
+++ b/src/background/shared/bookmarks.js
@@ -0,0 +1,9 @@
+const create = (title, url) => {
+  return browser.bookmarks.create({
+    type: 'bookmark',
+    title,
+    url,
+  });
+};
+
+export { create };
diff --git a/src/background/shared/completions/bookmarks.js b/src/background/shared/completions/bookmarks.js
new file mode 100644
index 0000000..1adb350
--- /dev/null
+++ b/src/background/shared/completions/bookmarks.js
@@ -0,0 +1,15 @@
+const getCompletions = (keywords) => {
+  return browser.bookmarks.search({ query: keywords }).then((items) => {
+    return items.filter((item) => {
+      let url = undefined;
+      try {
+        url = new URL(item.url);
+      } catch (e) {
+        return false;
+      }
+      return item.type === 'bookmark' && url.protocol !== 'place:';
+    }).slice(0, 10);
+  });
+};
+
+export { getCompletions };
diff --git a/src/background/shared/completions/histories.js b/src/background/shared/completions/histories.js
new file mode 100644
index 0000000..a7d3d47
--- /dev/null
+++ b/src/background/shared/completions/histories.js
@@ -0,0 +1,83 @@
+const filterHttp = (items) => {
+  const httpsHosts = items
+    .filter(item => item[1].protocol === 'https:')
+    .map(item => item[1].host);
+  const httpsHostSet = new Set(httpsHosts);
+  return items.filter(
+    item => !(item[1].protocol === 'http:' && httpsHostSet.has(item[1].host))
+  );
+};
+
+const filterEmptyTitle = (items) => {
+  return items.filter(item => item[0].title && item[0].title !== '');
+};
+
+const filterClosedPath = (items) => {
+  const allSimplePaths = items
+    .filter(item => item[1].hash === '' && item[1].search === '')
+    .map(item => item[1].origin + item[1].pathname);
+  const allSimplePathSet = new Set(allSimplePaths);
+  return items.filter(
+    item => !(item[1].hash === '' && item[1].search === '' &&
+      (/\/$/).test(item[1].pathname) &&
+      allSimplePathSet.has(
+        (item[1].origin + item[1].pathname).replace(/\/$/, '')
+      )
+    )
+  );
+};
+
+const reduceByPathname = (items, min) => {
+  let hash = {};
+  for (let item of items) {
+    let pathname = item[1].origin + item[1].pathname;
+    if (!hash[pathname]) {
+      hash[pathname] = item;
+    } else if (hash[pathname][1].href.length > item[1].href.length) {
+      hash[pathname] = item;
+    }
+  }
+  let filtered = Object.values(hash);
+  if (filtered.length < min) {
+    return items;
+  }
+  return filtered;
+};
+
+const reduceByOrigin = (items, min) => {
+  let hash = {};
+  for (let item of items) {
+    let origin = item[1].origin;
+    if (!hash[origin]) {
+      hash[origin] = item;
+    } else if (hash[origin][1].href.length > item[1].href.length) {
+      hash[origin] = item;
+    }
+  }
+  let filtered = Object.values(hash);
+  if (filtered.length < min) {
+    return items;
+  }
+  return filtered;
+};
+
+const getCompletions = (keyword) => {
+  return browser.history.search({
+    text: keyword,
+    startTime: 0,
+  }).then((historyItems) => {
+    return [historyItems.map(item => [item, new URL(item.url)])]
+      .map(filterEmptyTitle)
+      .map(filterHttp)
+      .map(filterClosedPath)
+      .map(items => reduceByPathname(items, 10))
+      .map(items => reduceByOrigin(items, 10))
+      .map(items => items
+        .sort((x, y) => x[0].visitCount < y[0].visitCount)
+        .slice(0, 10)
+        .map(item => item[0])
+      )[0];
+  });
+};
+
+export { getCompletions };
diff --git a/src/background/shared/completions/index.js b/src/background/shared/completions/index.js
new file mode 100644
index 0000000..8ecdcfc
--- /dev/null
+++ b/src/background/shared/completions/index.js
@@ -0,0 +1,115 @@
+import * as tabs from './tabs';
+import * as histories from './histories';
+import * as bookmarks from './bookmarks';
+
+const getSearchCompletions = (command, keywords, searchConfig) => {
+  let engineNames = Object.keys(searchConfig.engines);
+  let engineItems = engineNames.filter(name => name.startsWith(keywords))
+    .map(name => ({
+      caption: name,
+      content: command + ' ' + name
+    }));
+  return Promise.resolve(engineItems);
+};
+
+const getHistoryCompletions = (command, keywords) => {
+  return histories.getCompletions(keywords).then((pages) => {
+    return pages.map((page) => {
+      return {
+        caption: page.title,
+        content: command + ' ' + page.url,
+        url: page.url
+      };
+    });
+  });
+};
+
+const getBookmarksCompletions = (command, keywords) => {
+  return bookmarks.getCompletions(keywords).then((items) => {
+    return items.map((item) => {
+      return {
+        caption: item.title,
+        content: command + ' ' + item.url,
+        url: item.url,
+      };
+    });
+  });
+};
+
+const getOpenCompletions = (command, keywords, searchConfig) => {
+  return Promise.all([
+    getSearchCompletions(command, keywords, searchConfig),
+    getHistoryCompletions(command, keywords),
+    getBookmarksCompletions(command, keywords),
+  ]).then(([engineItems, historyItems, bookmarkItems]) => {
+    let completions = [];
+    if (engineItems.length > 0) {
+      completions.push({
+        name: 'Search Engines',
+        items: engineItems
+      });
+    }
+    if (historyItems.length > 0) {
+      completions.push({
+        name: 'History',
+        items: historyItems
+      });
+    }
+    if (bookmarkItems.length > 0) {
+      completions.push({
+        name: 'Bookmarks',
+        items: bookmarkItems
+      });
+    }
+    return completions;
+  });
+};
+
+const getCompletions = (line, settings) => {
+  let typedWords = line.trim().split(/ +/);
+  let typing = '';
+  if (!line.endsWith(' ')) {
+    typing = typedWords.pop();
+  }
+
+  if (typedWords.length === 0) {
+    return Promise.resolve([]);
+  }
+  let name = typedWords.shift();
+  let keywords = typedWords.concat(typing).join(' ');
+
+  switch (name) {
+  case 'o':
+  case 'open':
+  case 't':
+  case 'tabopen':
+  case 'w':
+  case 'winopen':
+    return getOpenCompletions(name, keywords, settings.search);
+  case 'b':
+  case 'buffer':
+    return tabs.getCompletions(keywords).then((gotTabs) => {
+      let items = gotTabs.map((tab) => {
+        return {
+          caption: tab.title,
+          content: name + ' ' + tab.title,
+          url: tab.url,
+          icon: tab.favIconUrl
+        };
+      });
+      return [
+        {
+          name: 'Buffers',
+          items: items
+        }
+      ];
+    });
+  }
+  return Promise.resolve([]);
+};
+
+const complete = (line, settings) => {
+  return getCompletions(line, settings);
+};
+
+export { complete };
diff --git a/src/background/shared/completions/tabs.js b/src/background/shared/completions/tabs.js
new file mode 100644
index 0000000..5edddca
--- /dev/null
+++ b/src/background/shared/completions/tabs.js
@@ -0,0 +1,10 @@
+const getCompletions = (keyword) => {
+  return browser.tabs.query({ currentWindow: true }).then((tabs) => {
+    let matched = tabs.filter((t) => {
+      return t.url.includes(keyword) || t.title && t.title.includes(keyword);
+    });
+    return matched;
+  });
+};
+
+export { getCompletions };
diff --git a/src/background/shared/indicators.js b/src/background/shared/indicators.js
new file mode 100644
index 0000000..74002c4
--- /dev/null
+++ b/src/background/shared/indicators.js
@@ -0,0 +1,13 @@
+const enable = () => {
+  return browser.browserAction.setIcon({
+    path: 'resources/enabled_32x32.png',
+  });
+};
+
+const disable = () => {
+  return browser.browserAction.setIcon({
+    path: 'resources/disabled_32x32.png',
+  });
+};
+
+export { enable, disable };
diff --git a/src/background/shared/tabs.js b/src/background/shared/tabs.js
new file mode 100644
index 0000000..f1dcc73
--- /dev/null
+++ b/src/background/shared/tabs.js
@@ -0,0 +1,126 @@
+const closeTab = (id) => {
+  return browser.tabs.get(id).then((tab) => {
+    if (!tab.pinned) {
+      return browser.tabs.remove(id);
+    }
+  });
+};
+
+const closeTabForce = (id) => {
+  return browser.tabs.remove(id);
+};
+
+const reopenTab = () => {
+  return browser.sessions.getRecentlyClosed({
+    maxResults: 1
+  }).then((sessions) => {
+    if (sessions.length === 0) {
+      return;
+    }
+    let session = sessions[0];
+    if (session.tab) {
+      return browser.sessions.restore(session.tab.sessionId);
+    }
+    return browser.sessions.restore(session.window.sessionId);
+  });
+};
+
+const selectAt = (index) => {
+  return browser.tabs.query({ currentWindow: true }).then((tabs) => {
+    if (tabs.length < 2) {
+      return;
+    }
+    if (index < 0 || tabs.length <= index) {
+      throw new RangeError(`tab ${index + 1} does not exist`);
+    }
+    let id = tabs[index].id;
+    return browser.tabs.update(id, { active: true });
+  });
+};
+
+const selectByKeyword = (current, keyword) => {
+  return browser.tabs.query({ currentWindow: true }).then((tabs) => {
+    let matched = tabs.filter((t) => {
+      return t.url.includes(keyword) || t.title.includes(keyword);
+    });
+
+    if (matched.length === 0) {
+      throw new RangeError('No matching buffer for ' + keyword);
+    }
+    for (let tab of matched) {
+      if (tab.index > current.index) {
+        return browser.tabs.update(tab.id, { active: true });
+      }
+    }
+    return browser.tabs.update(matched[0].id, { active: true });
+  });
+};
+
+const selectPrevTab = (current, count) => {
+  return browser.tabs.query({ currentWindow: true }).then((tabs) => {
+    if (tabs.length < 2) {
+      return;
+    }
+    let select = (current - count + tabs.length) % tabs.length;
+    let id = tabs[select].id;
+    return browser.tabs.update(id, { active: true });
+  });
+};
+
+const selectNextTab = (current, count) => {
+  return browser.tabs.query({ currentWindow: true }).then((tabs) => {
+    if (tabs.length < 2) {
+      return;
+    }
+    let select = (current + count) % tabs.length;
+    let id = tabs[select].id;
+    return browser.tabs.update(id, { active: true });
+  });
+};
+
+const selectFirstTab = () => {
+  return browser.tabs.query({ currentWindow: true }).then((tabs) => {
+    let id = tabs[0].id;
+    return browser.tabs.update(id, { active: true });
+  });
+};
+
+const selectLastTab = () => {
+  return browser.tabs.query({ currentWindow: true }).then((tabs) => {
+    let id = tabs[tabs.length - 1].id;
+    return browser.tabs.update(id, { active: true });
+  });
+};
+
+const selectTab = (id) => {
+  return browser.tabs.update(id, { active: true });
+};
+
+const reload = (current, cache) => {
+  return browser.tabs.reload(
+    current.id,
+    { bypassCache: cache }
+  );
+};
+
+const updateTabPinned = (current, pinned) => {
+  return browser.tabs.query({ currentWindow: true, active: true })
+    .then(() => {
+      return browser.tabs.update(current.id, { pinned: pinned });
+    });
+};
+
+const toggleTabPinned = (current) => {
+  updateTabPinned(current, !current.pinned);
+};
+
+const duplicate = (id) => {
+  return browser.tabs.duplicate(id);
+};
+
+export {
+  closeTab, closeTabForce, reopenTab, selectAt, selectByKeyword,
+  selectPrevTab, selectNextTab, selectFirstTab,
+  selectLastTab, selectTab, reload, updateTabPinned,
+  toggleTabPinned, duplicate
+};
diff --git a/src/background/shared/zooms.js b/src/background/shared/zooms.js
new file mode 100644
index 0000000..e3e2aa6
--- /dev/null
+++ b/src/background/shared/zooms.js
@@ -0,0 +1,38 @@
+// For chromium
+// const ZOOM_SETTINGS = [
+//   0.25, 0.33, 0.50, 0.66, 0.75, 0.80, 0.90, 1.00,
+//   1.10, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00, 4.00, 5.00
+// ];
+
+const ZOOM_SETTINGS = [
+  0.33, 0.50, 0.66, 0.75, 0.80, 0.90, 1.00,
+  1.10, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00
+];
+
+const zoomIn = (tabId = undefined) => {
+  return browser.tabs.getZoom(tabId).then((factor) => {
+    for (let f of ZOOM_SETTINGS) {
+      if (f > factor) {
+        browser.tabs.setZoom(tabId, f);
+        break;
+      }
+    }
+  });
+};
+
+const zoomOut = (tabId = undefined) => {
+  return browser.tabs.getZoom(tabId).then((factor) => {
+    for (let f of [].concat(ZOOM_SETTINGS).reverse()) {
+      if (f < factor) {
+        browser.tabs.setZoom(tabId, f);
+        break;
+      }
+    }
+  });
+};
+
+const neutral = (tabId = undefined) => {
+  return browser.tabs.setZoom(tabId, 1);
+};
+
+export { zoomIn, zoomOut, neutral };