changeset 0:2050741e9711

Initial revision
author Guido Berhoerster <guido+cws@berhoerster.name>
date Tue, 18 Sep 2018 22:57:18 +0200
parents
children d994aa563372
files COPYING Makefile NEWS README _locales/de/messages.json _locales/en/messages.json background.js icons/context-web-search.svg manifest.json.in
diffstat 9 files changed, 699 insertions(+), 0 deletions(-) [+]
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/COPYING	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in 
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,67 @@
+#
+# Copyright (C) 2018 Guido Berhoerster <guido+cws@berhoerster.name>
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+NAME =		context-web-search
+VERSION =	1
+EXT_NAME =	$(subst -,_,$(NAME))-$(VERSION)
+
+INKSCAPE := 	inkscape
+INFOZIP :=	zip
+SED :=		sed
+
+BITMAP_ICONS =	icons/context-web-search-48.png \
+		icons/context-web-search-96.png
+DIST_FILES =	manifest.json \
+		background.js \
+		COPYING \
+		NEWS \
+		README \
+		$(wildcard _locales/*/messages.json) \
+		$(BITMAP_ICONS)
+
+.DEFAULT_TARGET = all
+
+.PHONY: all extension clean clobber
+
+all: extension
+
+extension: $(EXT_NAME).zip
+
+$(EXT_NAME).zip: $(DIST_FILES)
+	$(INFOZIP) $@ $^
+
+define generate-icon-rule
+$1: $(1:%-$(lastword $(subst -, ,$1))=%.svg)
+	size=$(lastword $(subst -, ,$(basename $1))); \
+	    $(INKSCAPE) -w $$$${size} -h $$$${size} -e $$@ $$<
+endef
+
+$(foreach icon,$(BITMAP_ICONS),$(eval $(call generate-icon-rule,$(icon))))
+
+manifest.json: manifest.json.in
+	$(SED) 's|@VERSION@|$(VERSION)|g' $< >$@
+
+clean:
+	-rm -f $(BITMAP_ICONS) manifest.json
+
+clobber: clean
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/NEWS	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,2 @@
+News
+====
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,43 @@
+Context Web Search
+==================
+
+Context Web Search is a Firefox Addon which enables searching for selected
+text or link text with any one of the browser's configured search engines via
+the page context menu.
+
+Usage
+-----
+
+In order to search for the currently selected text, open the context menu on
+the same page and choose the desired search engine in the submenu named
+'Search "<term>" with...'.
+
+In order to search for the text of a link, make sure no other text is selected
+on that page, open the context menu on top of the desired link text and choose
+the desired search engine in the submenu named 'Search "<link text>" with...'.
+
+Contact
+-------
+
+Please send any feedback, translations or bug reports via email to
+<guido+cws@berhoerster.name>
+
+Bug Reports
+-----------
+
+When sending bug reports, please always mention the exact version of the addon
+with which the issue occurs as well as the version of Firefox and the operating
+system you are using and make sure that you provide sufficient information to
+reproduce the issue and include any error messages.
+
+License
+-------
+
+Except otherwise noted, all files are Copyright (C) 2018 Guido Berhoerster and
+distributed under the following license terms:
+
+Copyright (C) 2018 Guido Berhoerster <guido+cws@berhoerster.name>
+
+This Source Code Form is subject to the terms of the Mozilla Public
+License, v. 2.0. If a copy of the MPL was not distributed with this
+file, You can obtain one at http://mozilla.org/MPL/2.0/.
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/_locales/de/messages.json	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,30 @@
+{
+    "extensionName": {
+        "message": "Kontext-Websuche",
+        "description": "Name of the extension."
+    },
+    "extensionDescription": {
+        "message": "Suche nach dem ausgewählten Text oder Linktext mit einer der konfigurierten Suchmaschinen des Browsers über das Kontextmenü.",
+        "description": "Description of the extension."
+    },
+    "searchSelectionWithEngine": {
+        "message": "Suche mit $ENGINENAME$ nach \u201e%s\u201c",
+        "description": "Menu item for searching the selected text with one of the browser's search engines",
+        "placeholders": {
+            "engineName": {
+                "content": "$1",
+                "example": "DuckDuckGo"
+            }
+        }
+    },
+    "searchLinkWithEngine": {
+        "message": "Suche mit $ENGINENAME$",
+        "description": "Menu item for searching the selected text with one of the browser's search engines",
+        "placeholders": {
+            "engineName": {
+                "content": "$1",
+                "example": "DuckDuckGo"
+            }
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/_locales/en/messages.json	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,30 @@
+{
+    "extensionName": {
+        "message": "Context Web Search",
+        "description": "Name of the extension."
+    },
+    "extensionDescription": {
+        "message": "Search for selected text or link text with any one of the browser's configured search engines via the page context menu.",
+        "description": "Description of the extension."
+    },
+    "searchSelectionWithEngine": {
+        "message": "Search $ENGINENAME$ for \u201c%s\u201d",
+        "description": "Menu item for searching the selected text with one of the browser's search engines",
+        "placeholders": {
+            "engineName": {
+                "content": "$1",
+                "example": "DuckDuckGo"
+            }
+        }
+    },
+    "searchLinkWithEngine": {
+        "message": "Search $ENGINENAME$",
+        "description": "Menu item for searching the selected text with one of the browser's search engines",
+        "placeholders": {
+            "engineName": {
+                "content": "$1",
+                "example": "DuckDuckGo"
+            }
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/background.js	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2018 Guido Berhoerster <guido+cws@berhoerster.name>
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+'use strict';
+
+function encodeXML(str) {
+    return str.replace(/[<>&'"]/g, c => {
+        switch (c) {
+            case '<': return '&lt;';
+            case '>': return '&gt;';
+            case '&': return '&amp;';
+            case '\'': return '&apos;';
+            case '"': return '&quot;';
+        }
+    });
+}
+
+function createFavIcon(name) {
+    let firstLetter = name.trim().charAt(0);
+    if (firstLetter === '') {
+        firstLetter = '?';
+    }
+    let svg = `<svg viewBox="0 0 16 16" ` +
+            `xmlns="http://www.w3.org/2000/svg">` +
+            `<defs>` +
+            `<filter id="ds">` +
+            `<feDropShadow dx="0" dy="0" stdDeviation=".5"/>` +
+            `</filter>` +
+            `</defs>` +
+            `<rect width="16" height="16" rx="3" ry="3" fill="#ed00b5"/>` +
+            `<text x="8" y="12" alignment-baseline="middle" fill="#fff" ` +
+            `filter="url(#ds)" font-family="sans-serif" font-size="11px" ` +
+            `font-weight="bold" text-anchor="middle">` +
+            `${encodeXML(firstLetter)}</text>` +
+            `</svg>`;
+    return `data:image/svg+xml;charset=utf-8,${encodeURIComponent(svg)}`
+}
+
+async function createMenu(isSelection) {
+    let searchEngines = await browser.search.get();
+    let menuItems = new Set();
+    for (let engine of searchEngines) {
+        let favIcon = typeof engine.favIconUrl !== 'undefined' ?
+                engine.favIconUrl : createFavIcon(engine.name);
+        let menuItemId = browser.menus.create({
+            id: engine.name,
+            title: browser.i18n.getMessage(isSelection ?
+                    'searchSelectionWithEngine' : 'searchLinkWithEngine',
+                    engine.name.trim()),
+            icons: {16: favIcon},
+            contexts: ['link', 'selection']
+        }, async () => {
+            if (browser.runtime.lastError) {
+                console.log(`Failed to create menu item:` +
+                        `${browser.runtime.lastError}`);
+            }
+
+            // browser.menus.create does not return a promise that can be
+            // awaited, thus collect the returned menu item IDs in a set and
+            // remove them from this callback which is called when the
+            // asynchronous creation function has finished; when the set is
+            // empty all creation functions have finished and the menu can be
+            // refreshed
+            menuItems.delete(menuItemId);
+            if (menuItems.size === 0) {
+                try {
+                    await browser.menus.refresh();
+                } catch (e) {
+                    console.log(`Failed to refresh menu: ${e.message}`);
+                }
+            }
+        });
+        menuItems.add(menuItemId);
+    }
+}
+
+browser.menus.onShown.addListener(async (info, tab) => {
+    try {
+        await createMenu(info.contexts.includes('selection'));
+    } catch (e) {
+        console.log(e);
+    }
+});
+
+browser.menus.onHidden.addListener(async () => {
+    try {
+        await browser.menus.removeAll();
+    } catch (e) {
+        console.log(`Failed to remove menu items: ${e.message}`);
+    }
+    try {
+        await browser.menus.refresh();
+    } catch (e) {
+        console.log(`Failed to refresh menu: ${e.message}`);
+    }
+});
+
+browser.menus.onClicked.addListener(async (info, tab) => {
+    let query = typeof info.selectionText !== 'undefined' ?
+            info.selectionText.trim() : info.linkText.trim();
+    try {
+        await browser.search.search({
+            query: query,
+            engine: info.menuItemId
+        });
+    } catch (e) {
+        console.log(`Failed to search for "${query}": ${e.message}`);
+    }
+});
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/icons/context-web-search.svg	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,14 @@
+<!--
+Copyright (C) 2018 Guido Berhoerster <guido+cws@berhoerster.name>
+
+This Source Code Form is subject to the terms of the Mozilla Public
+License, v. 2.0. If a copy of the MPL was not distributed with this
+file, You can obtain one at http://mozilla.org/MPL/2.0/.
+-->
+<svg version="1.1" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg">
+  <rect width="16" height="16" rx="3" ry="3" fill="#ed00b5"/>
+  <g stroke="#ffffff" stroke-linecap="round" stroke-width="2" fill="none">
+    <circle cx="7" cy="7" r="4"/>
+    <path d="m10 10 3 3"/>
+  </g>
+</svg>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/manifest.json.in	Tue Sep 18 22:57:18 2018 +0200
@@ -0,0 +1,26 @@
+{
+    "manifest_version": 2,
+    "name": "__MSG_extensionName__",
+    "version": "@VERSION@",
+    "description": "__MSG_extensionDescription__",
+    "author": "Guido Berhoerster",
+    "homepage_url": "https://code.guido-berhoerster.org/addons/firefox-addons/context-web-search/",
+    "default_locale": "en",
+    "applications": {
+        "gecko": {
+            "id": "context-web-search@code.guido-berhoerster.org",
+            "strict_min_version": "63.0"
+        }
+    },
+    "icons": {
+        "48": "icons/context-web-search-48.png",
+        "96": "icons/context-web-search-96.png"
+    },
+    "permissions": [
+        "menus",
+        "search"
+    ],
+    "background": {
+        "scripts": [ "background.js" ]
+    }
+}