Add Open my editor

tools/chrome_extensions/open_my_editor/ext/background.js

+// Copyright 2017 Google Inc.
+//
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function get_query(uri, key) {
+  if (uri.includes('?')) {
+    let query_str = uri.split('?')[1];
+    let queries = query_str.split('&');
+    for (let query of queries) {
+      let ss = query.split('=');
+      if (ss.length == 2 && ss[0] == key)
+        return ss[1];
+    }
+  }
+  return undefined;
+}
+
+function open_by_selection(selectionText) {
+  if (selectionText)
+    fetch('http://127.0.0.1:8989/file?f=' + selectionText + '&l=1');
+}
+
+function open_by_link(pageUrl, info, tabId) {
+  if (pageUrl.startsWith('https://cs.chromium.org/')) {
+    if (info.linkUrl.startsWith('https://cs.chromium.org/chromium/src/')) {
+      let filepath =
+          info.linkUrl.replace('https://cs.chromium.org/chromium/src/', '')
+              .replace(/\?.*/, '');
+      let line = get_query(info.linkUrl, 'l');
+      line = line != undefined ? line : '1';
+      fetch('http://127.0.0.1:8989/file?f=' + filepath + '&l=' + line);
+    }
+  } else if (pageUrl.startsWith('https://codereview.chromium.org/')) {
+    if (info.linkUrl.match('https://codereview.chromium.org/.*/patch/') !=
+        null) {
+      chrome.tabs.sendMessage(tabId, 'getFile', (res) => {
+        if (res.file)
+          fetch('http://127.0.0.1:8989/file?f=' + res.file + '&l=1');
+      });
+    } else if (
+        info.linkUrl.match(
+            /https:\/\/codereview.chromium.org\/\d*\/diff\/\d*\//) != null) {
+      let filepath = info.linkUrl.replace(
+          /https:\/\/codereview.chromium.org\/\d*\/diff\/\d*\//, '');
+      fetch('http://127.0.0.1:8989/file?f=' + filepath + '&l=1');
+    }
+  }
+}
+
+function cs_open_by_current_line(tabId, url) {
+  chrome.tabs.sendMessage(tabId, 'getLine', (res) => {
+    let line = res.line;
+
+    let filepath = url.replace('https://cs.chromium.org/chromium/src/', '')
+                       .replace(/\?.*/, '');
+
+    fetch('http://127.0.0.1:8989/file?f=' + filepath + '&l=' + line);
+  });
+}
+
+function cr_open_all_in_patchset(tabId) {
+  chrome.tabs.sendMessage(tabId, 'getFiles', (res) => {
+    fetch('http://127.0.0.1:8989/files?f=' + res.files.join(','));
+  });
+}
+
+chrome.contextMenus.onClicked.addListener((info, tab) => {
+  if (info.menuItemId == 'ome-selection') {
+    open_by_selection(info.selectionText);
+  } else if (info.menuItemId == 'ome-link') {
+    open_by_link(tab.url, info, tab.id);
+  } else if (info.menuItemId == 'ome') {
+    if (tab.url.startsWith('https://cs.chromium.org/chromium/src/')) {
+      cs_open_by_current_line(tab.id, tab.url);
+    } else if (tab.url.startsWith('https://codereview.chromium.org/')) {
+      cr_open_all_in_patchset(tab.id);
+    }
+  }
+});
+
+chrome.runtime.onInstalled.addListener(() => {
+  chrome.contextMenus.create({
+    'title': 'Open My Editor',
+    'id': 'ome',
+    'contexts': ['page'],
+    'documentUrlPatterns': [
+      'https://cs.chromium.org/chromium/src/*',
+      'https://codereview.chromium.org/*'
+    ]
+  });
+  chrome.contextMenus.create({
+    'title': 'Open My Editor by Link',
+    'id': 'ome-link',
+    'contexts': ['link'],
+    'documentUrlPatterns':
+        ['https://cs.chromium.org/*', 'https://codereview.chromium.org/*']
+  });
+  chrome.contextMenus.create({
+    'title': 'Open My Editor for "%s"',
+    'id': 'ome-selection',
+    'contexts': ['selection'],
+    'documentUrlPatterns': [
+      // TODO(chaopeng) Should be only except CS and CR, But I dont know how to.
+      // So only list the sites here.
+      'https://build.chromium.org/*', 'https://chromium.org/*'
+    ]
+  });
+});