Merge pull request #211 from JustOff/PR_PMkit_part1

Make Add-on SDK (Jetpack) work on Pale Moon || Part 1

7 files changed, 249 insertions, 1 deletions

diff --git a/toolkit/jetpack/sdk/ui/button/action.js b/toolkit/jetpack/sdk/ui/button/action.js
index dfb092d0c..5355705be 100644
--- a/toolkit/jetpack/sdk/ui/button/action.js
+++ b/toolkit/jetpack/sdk/ui/button/action.js
@@ -6,6 +6,7 @@
 module.metadata = {
   'stability': 'experimental',
   'engines': {
+    'Palemoon': '> 27',
     'Firefox': '> 28'
   }
 };
diff --git a/toolkit/jetpack/sdk/ui/button/toggle.js b/toolkit/jetpack/sdk/ui/button/toggle.js
index a226b3212..d8a3d1758 100644
--- a/toolkit/jetpack/sdk/ui/button/toggle.js
+++ b/toolkit/jetpack/sdk/ui/button/toggle.js
@@ -6,6 +6,7 @@
 module.metadata = {
   'stability': 'experimental',
   'engines': {
+    'Palemoon': '> 27',
     'Firefox': '> 28'
   }
 };
diff --git a/toolkit/jetpack/sdk/ui/button/view.js b/toolkit/jetpack/sdk/ui/button/view.js
index 63b7aea31..552aab2f7 100644
--- a/toolkit/jetpack/sdk/ui/button/view.js
+++ b/toolkit/jetpack/sdk/ui/button/view.js
@@ -6,6 +6,7 @@
 module.metadata = {
   'stability': 'experimental',
   'engines': {
+    'Palemoon': '> 27',
     'Firefox': '> 28'
   }
 };
@@ -19,14 +20,19 @@ const { isObject, isNil } = require('../../lang/type');
 
 const { getMostRecentBrowserWindow } = require('../../window/utils');
 const { ignoreWindow } = require('../../private-browsing/utils');
+#ifdef MC_PALEMOON
+const { buttons } = require('../buttons');
+#else
 const { CustomizableUI } = Cu.import('resource:///modules/CustomizableUI.jsm', {});
 const { AREA_PANEL, AREA_NAVBAR } = CustomizableUI;
+#endif
 
 const { events: viewEvents } = require('./view/events');
 
 const XUL_NS = 'http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul';
 
 const views = new Map();
+#ifndef MC_PALEMOON
 const customizedWindows = new WeakMap();
 
 const buttonListener = {
@@ -64,19 +70,25 @@ CustomizableUI.addListener(buttonListener);
 require('../../system/unload').when( _ =>
   CustomizableUI.removeListener(buttonListener)
 );
+#endif
 
 function getNode(id, window) {
   return !views.has(id) || ignoreWindow(window)
     ? null
+#ifdef MC_PALEMOON
+    : buttons.getNode(id, window);
+#else
     : CustomizableUI.getWidget(id).forWindow(window).node
+#endif
 };
 
+#ifndef MC_PALEMOON
 function isInToolbar(id) {
   let placement = CustomizableUI.getPlacementOfWidget(id);
 
   return placement && CustomizableUI.getAreaType(placement.area) === 'toolbar';
 }
-
+#endif
 
 function getImage(icon, isInToolbar, pixelRatio) {
   let targetSize = (isInToolbar ? 18 : 32) * pixelRatio;
@@ -109,7 +121,11 @@ function getImage(icon, isInToolbar, pixelRatio) {
 }
 
 function nodeFor(id, window=getMostRecentBrowserWindow()) {
+#ifdef MC_PALEMOON
+  return getNode(id, window);
+#else
   return customizedWindows.has(window) ? null : getNode(id, window);
+#endif
 };
 exports.nodeFor = nodeFor;
 
@@ -119,14 +135,23 @@ function create(options) {
   if (views.has(id))
     throw new Error('The ID "' + id + '" seems already used.');
 
+#ifdef MC_PALEMOON
+  buttons.createButton({
+#else
   CustomizableUI.createWidget({
+#endif
     id: id,
+#ifdef MC_PALEMOON
+
+    onBuild: function(document, _id) {
+#else
     type: 'custom',
     removable: true,
     defaultArea: AREA_NAVBAR,
     allowedAreas: [ AREA_PANEL, AREA_NAVBAR ],
 
     onBuild: function(document) {
+#endif
       let window = document.defaultView;
 
       let node = document.createElementNS(XUL_NS, 'toolbarbutton');
@@ -136,16 +161,28 @@ function create(options) {
       if (ignoreWindow(window))
         node.style.display = 'none';
 
+#ifdef MC_PALEMOON
+      node.setAttribute('id', _id);
+#else
       node.setAttribute('id', this.id);
+#endif
       node.setAttribute('class', 'toolbarbutton-1 chromeclass-toolbar-additional badged-button');
+#ifndef MC_PALEMOON
       node.setAttribute('type', type);
+#endif
       node.setAttribute('label', label);
       node.setAttribute('tooltiptext', label);
       node.setAttribute('image', image);
+#ifdef MC_PALEMOON
+      node.setAttribute('pmkit-button', 'true');
+#else
       node.setAttribute('constrain-size', 'true');
+#endif
 
       views.set(id, {
+#ifndef MC_PALEMOON
         area: this.currentArea,
+#endif
         icon: icon,
         label: label
       });
@@ -171,7 +208,11 @@ function dispose(id) {
   if (!views.has(id)) return;
 
   views.delete(id);
+#ifdef MC_PALEMOON
+  buttons.destroyButton(id);
+#else
   CustomizableUI.destroyWidget(id);
+#endif
 }
 exports.dispose = dispose;
 
@@ -179,8 +220,12 @@ function setIcon(id, window, icon) {
   let node = getNode(id, window);
 
   if (node) {
+#ifdef MC_PALEMOON
+    let image = getImage(icon, true, window.devicePixelRatio);
+#else
     icon = customizedWindows.has(window) ? views.get(id).icon : icon;
     let image = getImage(icon, isInToolbar(id), window.devicePixelRatio);
+#endif
 
     node.setAttribute('image', image);
   }
diff --git a/toolkit/jetpack/sdk/ui/button/view/events.js b/toolkit/jetpack/sdk/ui/button/view/events.js
index 98909656a..34d14be3a 100644
--- a/toolkit/jetpack/sdk/ui/button/view/events.js
+++ b/toolkit/jetpack/sdk/ui/button/view/events.js
@@ -7,6 +7,7 @@
 module.metadata = {
   'stability': 'experimental',
   'engines': {
+    'Palemoon': '*',
     'Firefox': '*',
     'SeaMonkey': '*',
     'Thunderbird': '*'
diff --git a/toolkit/jetpack/sdk/ui/buttons.js b/toolkit/jetpack/sdk/ui/buttons.js
new file mode 100644
index 000000000..66e0fd742
--- /dev/null
+++ b/toolkit/jetpack/sdk/ui/buttons.js
@@ -0,0 +1,198 @@
+/* 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/.
+ * PMkit shim for 'sdk/ui/button', (c) JustOff, 2017 */
+"use strict";
+
+module.metadata = {
+  "stability": "experimental",
+  "engines": {
+    "Palemoon": "> 27"
+  }
+};
+
+const { Ci, Cc } = require('chrome');
+const prefs = require('../preferences/service');
+
+const buttonsList = new Map();
+const LOCATION_PREF_ROOT = "extensions.sdk-button-location.";
+
+let gWindowListener;
+
+function getLocation(id) {
+  let toolbarId = "nav-bar", nextItemId = "";
+  let location = prefs.get(LOCATION_PREF_ROOT + id);
+  if (location && location.indexOf(",") !== -1) {
+    [toolbarId, nextItemId] = location.split(",");
+  }
+  return [toolbarId, nextItemId];
+}
+
+function saveLocation(id, toolbarId, nextItemId) {
+  let _toolbarId = toolbarId || "";
+  let _nextItemId = nextItemId || "";
+  prefs.set(LOCATION_PREF_ROOT + id, [_toolbarId, _nextItemId].join(","));
+}
+
+// Insert button into window
+function insertButton(aWindow, id, onBuild) {
+  // Build button and save reference to it
+  let doc = aWindow.document;
+  let b = onBuild(doc, id);
+  aWindow[id] = b;
+
+  // Add to the customization palette
+  let toolbox = doc.getElementById("navigator-toolbox");
+  toolbox.palette.appendChild(b);
+
+  // Retrieve button location from preferences
+  let [toolbarId, nextItemId] = getLocation(id);
+  let toolbar = toolbarId != "" && doc.getElementById(toolbarId);
+
+  if (toolbar) {
+    let nextItem = doc.getElementById(nextItemId);
+    // If nextItem not in toolbar then retrieve it by reading currentset attribute
+    if (!(nextItem && nextItem.parentNode && nextItem.parentNode.id == toolbarId)) {
+      nextItem = null;
+      let currentSet = toolbar.getAttribute("currentset");
+      let ids = (currentSet == "__empty") ? [] : currentSet.split(",");
+      let idx = ids.indexOf(id);
+      if (idx != -1) {
+        for (let i = idx; i < ids.length; i++) {
+          nextItem = doc.getElementById(ids[i]);
+          if (nextItem)
+            break;
+        }
+      }
+    }
+    // Finally insert button in the right toolbar and in the right position
+    toolbar.insertItem(id, nextItem, null, false);
+  }
+}
+
+// Remove button from window
+function removeButton(aWindow, id) {
+  let b = aWindow[id];
+  b.parentNode.removeChild(b);
+  delete aWindow[id];
+}
+
+// Save locations of buttons after customization
+function afterCustomize(e) {
+  for (let [id] of buttonsList) {
+    let toolbox = e.target;
+    let b = toolbox.parentNode.querySelector("#" + id);
+    let toolbarId = null, nextItemId = null;
+    if (b) {
+      let parent = b.parentNode;
+      let nextItem = b.nextSibling;
+      if (parent && parent.localName == "toolbar") {
+        toolbarId = parent.id;
+        nextItemId = nextItem && nextItem.id;
+      }
+    }
+    saveLocation(id, toolbarId, nextItemId);
+  }
+}
+
+// Global window observer
+function browserWindowObserver(handlers) {
+  this.handlers = handlers;
+}
+
+browserWindowObserver.prototype = {
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic == "domwindowopened") {
+      aSubject.QueryInterface(Ci.nsIDOMWindow).addEventListener("load", this, false);
+    } else if (aTopic == "domwindowclosed") {
+      if (aSubject.document.documentElement.getAttribute("windowtype") == "navigator:browser") {
+        this.handlers.onShutdown(aSubject);
+      }
+    }
+  },
+
+  handleEvent: function(aEvent) {
+    let aWindow = aEvent.currentTarget;
+    aWindow.removeEventListener(aEvent.type, this, false);
+
+    if (aWindow.document.documentElement.getAttribute("windowtype") == "navigator:browser") {
+      this.handlers.onStartup(aWindow);
+    }
+  }
+};
+
+// Run on every window startup
+function browserWindowStartup(aWindow) {
+  for (let [id, onBuild] of buttonsList) {
+    insertButton(aWindow, id, onBuild);
+  }
+  aWindow.addEventListener("aftercustomization", afterCustomize, false);
+};
+
+// Run on every window shutdown
+function browserWindowShutdown(aWindow) {
+  for (let [id, onBuild] of buttonsList) {
+    removeButton(aWindow, id);
+  }
+  aWindow.removeEventListener("aftercustomization", afterCustomize, false);
+}
+
+// Main object
+const buttons = {
+  createButton: function(aProperties) {
+    // If no buttons were inserted yet, setup global window observer
+    if (buttonsList.size == 0) {
+      let ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].getService(Ci.nsIWindowWatcher);
+      gWindowListener = new browserWindowObserver({
+        onStartup: browserWindowStartup,
+        onShutdown: browserWindowShutdown
+      });
+      ww.registerNotification(gWindowListener);
+    }
+
+    // Add button to list
+    buttonsList.set(aProperties.id, aProperties.onBuild);
+
+    // Inster button to all open windows
+    let wm = Cc["@mozilla.org/appshell/window-mediator;1"].getService(Ci.nsIWindowMediator);
+    let winenu = wm.getEnumerator("navigator:browser");
+    while (winenu.hasMoreElements()) {
+      let win = winenu.getNext();
+      insertButton(win, aProperties.id, aProperties.onBuild);
+      // When first button inserted, add afterCustomize listener
+      if (buttonsList.size == 1) {
+        win.addEventListener("aftercustomization", afterCustomize, false);
+      }
+    }
+  },
+
+  destroyButton: function(id) {
+    // Remove button from list
+    buttonsList.delete(id);
+
+    // If no more buttons exist, remove global window observer
+    if (buttonsList.size == 0) {
+      let ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].getService(Ci.nsIWindowWatcher);
+      ww.unregisterNotification(gWindowListener);
+      gWindowListener = null;
+    }
+
+    // Remove button from all open windows
+    let wm = Cc["@mozilla.org/appshell/window-mediator;1"].getService(Ci.nsIWindowMediator);
+    let winenu = wm.getEnumerator("navigator:browser");
+    while (winenu.hasMoreElements()) {
+      let win = winenu.getNext();
+      removeButton(win, id);
+      // If no more buttons exist, remove afterCustomize listener
+      if (buttonsList.size == 0) {
+        win.removeEventListener("aftercustomization", afterCustomize, false);
+      }
+    }
+  },
+
+  getNode: function(id, window) {
+    return window[id];
+  }
+};
+
+exports.buttons = buttons;
diff --git a/toolkit/jetpack/sdk/ui/state.js b/toolkit/jetpack/sdk/ui/state.js
index 152ce696d..c90d4283d 100644
--- a/toolkit/jetpack/sdk/ui/state.js
+++ b/toolkit/jetpack/sdk/ui/state.js
@@ -8,6 +8,7 @@
 module.metadata = {
   'stability': 'experimental',
   'engines': {
+    'Palemoon': '*',
     'Firefox': '*',
     'SeaMonkey': '*',
     'Thunderbird': '*'
diff --git a/toolkit/jetpack/sdk/ui/state/events.js b/toolkit/jetpack/sdk/ui/state/events.js
index 98909656a..34d14be3a 100644
--- a/toolkit/jetpack/sdk/ui/state/events.js
+++ b/toolkit/jetpack/sdk/ui/state/events.js
@@ -7,6 +7,7 @@
 module.metadata = {
   'stability': 'experimental',
   'engines': {
+    'Palemoon': '*',
     'Firefox': '*',
     'SeaMonkey': '*',
     'Thunderbird': '*'