feat(contextMenu): Image Rehosting

- adds image, video or audio to IPFS via context menu
- opens pinned resource in a new tab
- closes #59

add-on/manifest.json

@@ -23,6 +23,7 @@
         "notifications",
         "alarms",
         "storage",
+        "contextMenus",
         "webRequest",
         "webRequestBlocking"
     ],

add-on/src/lib/common.js

@@ -203,6 +203,7 @@ function handleAlarm (alarm) {
       .then(updatePeerCountState)
       .then(updateAutomaticModeRedirectState)
       .then(updateBrowserActionBadge)
+      .then(updateContextMenus)
   }
 }
 
@@ -247,11 +248,37 @@ function notify (title, message) {
   })
 }
 
+// contextMenus
+// -------------------------------------------------------------------
+const contextMenuUploadToIpfs = 'upload-to-ipfs'
+
+browser.contextMenus.create({
+  id: contextMenuUploadToIpfs,
+  title: contextMenuUploadToIpfs, // TODO: i18
+  contexts: ['image', 'video', 'audio'],
+  onclick: (info, tab) => {
+    ipfs.util.addFromURL(info.srcUrl, (err, result) => {
+      if (err) {
+        notify('Unable to upload to IPFS API', `${err}`)
+        return
+      }
+      browser.tabs.create({
+        'url': new URL(state.gwURLString + '/ipfs/' + result[0].hash).toString()
+      })
+    })
+  }
+})
+
+function updateContextMenus () {
+  browser.contextMenus.update(contextMenuUploadToIpfs, {enabled: state.peerCount > 0})
+}
+
 // pageAction
 // -------------------------------------------------------------------
 
 function onUpdatedTab (tabId, changeInfo, tab) {
-  if (window.IsIpfs.url(tab.url)) {
+  const ipfsContext = window.IsIpfs.url(tab.url)
+  if (ipfsContext) {
     browser.pageAction.show(tab.id)
   } else {
     browser.pageAction.hide(tab.id)

add-on/src/popup/page-action.js

@@ -31,7 +31,7 @@ function initPageAction () {
       return browser.runtime.getBackgroundPage()
         .then(bg => {
           copyPublicGwAddress.onclick = () => {
-            const publicGwAddress = currentTab.url.replace(bg.gwURLString, 'https://ipfs.io')
+            const publicGwAddress = new URL(currentTab.url.replace(bg.state.gwURLString, 'https://ipfs.io')).toString()
             copyTextToClipboard(publicGwAddress)
             bg.notify('Copied Public URL', publicGwAddress) // TODO: i18
             window.close()