1 files changed, 491 insertions, 0 deletions
diff --git a/application/palemoon/components/search/content/engineManager.js b/application/palemoon/components/search/content/engineManager.js
new file mode 100644
index 000000000..92b6d59b7
--- /dev/null
+++ b/application/palemoon/components/search/content/engineManager.js
@@ -0,0 +1,491 @@
+/* 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/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const Ci = Components.interfaces;
+const Cc = Components.classes;
+
+const ENGINE_FLAVOR = "text/x-moz-search-engine";
+
+const BROWSER_SUGGEST_PREF = "browser.search.suggest.enabled";
+
+var gEngineView = null;
+
+var gEngineManagerDialog = {
+  init: function engineManager_init() {
+    gEngineView = new EngineView(new EngineStore());
+
+    var suggestEnabled = Services.prefs.getBoolPref(BROWSER_SUGGEST_PREF);
+    document.getElementById("enableSuggest").checked = suggestEnabled;
+
+    var tree = document.getElementById("engineList");
+    tree.view = gEngineView;
+
+    Services.obs.addObserver(this, "browser-search-engine-modified", false);
+  },
+
+  destroy: function engineManager_destroy() {
+    // Remove the observer
+    Services.obs.removeObserver(this, "browser-search-engine-modified");
+  },
+
+  observe: function engineManager_observe(aEngine, aTopic, aVerb) {
+    if (aTopic == "browser-search-engine-modified") {
+      aEngine.QueryInterface(Ci.nsISearchEngine);
+      switch (aVerb) {
+      case "engine-added":
+        gEngineView._engineStore.addEngine(aEngine);
+        gEngineView.rowCountChanged(gEngineView.lastIndex, 1);
+        break;
+      case "engine-changed":
+        gEngineView._engineStore.reloadIcons();
+        gEngineView.invalidate();
+        break;
+      case "engine-removed":
+      case "engine-current":
+      case "engine-default":
+        // Not relevant
+        break;
+      }
+    }
+  },
+
+  onOK: function engineManager_onOK() {
+    // Set the preference
+    var newSuggestEnabled = document.getElementById("enableSuggest").checked;
+    Services.prefs.setBoolPref(BROWSER_SUGGEST_PREF, newSuggestEnabled);
+
+    // Commit the changes
+    gEngineView._engineStore.commit();
+  },
+
+  onRestoreDefaults: function engineManager_onRestoreDefaults() {
+    var num = gEngineView._engineStore.restoreDefaultEngines();
+    gEngineView.rowCountChanged(0, num);
+    gEngineView.invalidate();
+  },
+
+  showRestoreDefaults: function engineManager_showRestoreDefaults(val) {
+    document.documentElement.getButton("extra2").disabled = !val;
+  },
+
+  loadAddEngines: function engineManager_loadAddEngines() {
+    this.onOK();
+    window.opener.BrowserSearch.loadAddEngines();
+    window.close();
+  },
+
+  remove: function engineManager_remove() {
+    gEngineView._engineStore.removeEngine(gEngineView.selectedEngine);
+    var index = gEngineView.selectedIndex;
+    gEngineView.rowCountChanged(index, -1);
+    gEngineView.invalidate();
+    gEngineView.selection.select(Math.min(index, gEngineView.lastIndex));
+    gEngineView.ensureRowIsVisible(gEngineView.currentIndex);
+    document.getElementById("engineList").focus();
+  },
+
+  /**
+   * Moves the selected engine either up or down in the engine list
+   * @param aDir
+   *        -1 to move the selected engine down, +1 to move it up.
+   */
+  bump: function engineManager_move(aDir) {
+    var selectedEngine = gEngineView.selectedEngine;
+    var newIndex = gEngineView.selectedIndex - aDir;
+
+    gEngineView._engineStore.moveEngine(selectedEngine, newIndex);
+
+    gEngineView.invalidate();
+    gEngineView.selection.select(newIndex);
+    gEngineView.ensureRowIsVisible(newIndex);
+    this.showRestoreDefaults(true);
+    document.getElementById("engineList").focus();
+  },
+
+  editKeyword: function engineManager_editKeyword() {
+    var selectedEngine = gEngineView.selectedEngine;
+    if (!selectedEngine)
+      return;
+
+    var alias = { value: selectedEngine.alias };
+    var strings = document.getElementById("engineManagerBundle");
+    var title = strings.getString("editTitle");
+    var msg = strings.getFormattedString("editMsg", [selectedEngine.name]);
+
+    while (Services.prompt.prompt(window, title, msg, alias, null, {})) {
+      var bduplicate = false;
+      var eduplicate = false;
+      var dupName = "";
+
+      if (alias.value != "") {
+        try {
+          let bmserv = Cc["@mozilla.org/browser/nav-bookmarks-service;1"].
+                       getService(Ci.nsINavBookmarksService);
+          if (bmserv.getURIForKeyword(alias.value))
+            bduplicate = true;
+        } catch(ex) {}
+
+        // Check for duplicates in changes we haven't committed yet
+        let engines = gEngineView._engineStore.engines;
+        for each (let engine in engines) {
+          if (engine.alias == alias.value &&
+              engine.name != selectedEngine.name) {
+            eduplicate = true;
+            dupName = engine.name;
+            break;
+          }
+        }
+      }
+
+      // Notify the user if they have chosen an existing engine/bookmark keyword
+      if (eduplicate || bduplicate) {
+        var dtitle = strings.getString("duplicateTitle");
+        var bmsg = strings.getString("duplicateBookmarkMsg");
+        var emsg = strings.getFormattedString("duplicateEngineMsg", [dupName]);
+
+        Services.prompt.alert(window, dtitle, eduplicate ? emsg : bmsg);
+      } else {
+        gEngineView._engineStore.changeEngine(selectedEngine, "alias",
+                                              alias.value);
+        gEngineView.invalidate();
+        break;
+      }
+    }
+  },
+
+  onSelect: function engineManager_onSelect() {
+    // Buttons only work if an engine is selected and it's not the last engine,
+    // the latter is true when the selected is first and last at the same time.
+    var lastSelected = (gEngineView.selectedIndex == gEngineView.lastIndex);
+    var firstSelected = (gEngineView.selectedIndex == 0);
+    var noSelection = (gEngineView.selectedIndex == -1);
+
+    document.getElementById("cmd_remove")
+            .setAttribute("disabled", noSelection ||
+                                      (firstSelected && lastSelected));
+
+    document.getElementById("cmd_moveup")
+            .setAttribute("disabled", noSelection || firstSelected);
+
+    document.getElementById("cmd_movedown")
+            .setAttribute("disabled", noSelection || lastSelected);
+
+    document.getElementById("cmd_editkeyword")
+            .setAttribute("disabled", noSelection);
+  }
+};
+
+function onDragEngineStart(event) {
+  var selectedIndex = gEngineView.selectedIndex;
+  if (selectedIndex >= 0) {
+    event.dataTransfer.setData(ENGINE_FLAVOR, selectedIndex.toString());
+    event.dataTransfer.effectAllowed = "move";
+  }
+}
+
+// "Operation" objects
+function EngineMoveOp(aEngineClone, aNewIndex) {
+  if (!aEngineClone)
+    throw new Error("bad args to new EngineMoveOp!");
+  this._engine = aEngineClone.originalEngine;
+  this._newIndex = aNewIndex;
+}
+EngineMoveOp.prototype = {
+  _engine: null,
+  _newIndex: null,
+  commit: function EMO_commit() {
+    Services.search.moveEngine(this._engine, this._newIndex);
+  }
+}
+
+function EngineRemoveOp(aEngineClone) {
+  if (!aEngineClone)
+    throw new Error("bad args to new EngineRemoveOp!");
+  this._engine = aEngineClone.originalEngine;
+}
+EngineRemoveOp.prototype = {
+  _engine: null,
+  commit: function ERO_commit() {
+    Services.search.removeEngine(this._engine);
+  }
+}
+
+function EngineUnhideOp(aEngineClone, aNewIndex) {
+  if (!aEngineClone)
+    throw new Error("bad args to new EngineUnhideOp!");
+  this._engine = aEngineClone.originalEngine;
+  this._newIndex = aNewIndex;
+}
+EngineUnhideOp.prototype = {
+  _engine: null,
+  _newIndex: null,
+  commit: function EUO_commit() {
+    this._engine.hidden = false;
+    Services.search.moveEngine(this._engine, this._newIndex);
+  }
+}
+
+function EngineChangeOp(aEngineClone, aProp, aValue) {
+  if (!aEngineClone)
+    throw new Error("bad args to new EngineChangeOp!");
+
+  this._engine = aEngineClone.originalEngine;
+  this._prop = aProp;
+  this._newValue = aValue;
+}
+EngineChangeOp.prototype = {
+  _engine: null,
+  _prop: null,
+  _newValue: null,
+  commit: function ECO_commit() {
+    this._engine[this._prop] = this._newValue;
+  }
+}
+
+function EngineStore() {
+  this._engines = Services.search.getVisibleEngines().map(this._cloneEngine);
+  this._defaultEngines = Services.search.getDefaultEngines().map(this._cloneEngine);
+
+  this._ops = [];
+
+  // check if we need to disable the restore defaults button
+  var someHidden = this._defaultEngines.some(function (e) e.hidden);
+  gEngineManagerDialog.showRestoreDefaults(someHidden);
+}
+EngineStore.prototype = {
+  _engines: null,
+  _defaultEngines: null,
+  _ops: null,
+
+  get engines() {
+    return this._engines;
+  },
+  set engines(val) {
+    this._engines = val;
+    return val;
+  },
+
+  _getIndexForEngine: function ES_getIndexForEngine(aEngine) {
+    return this._engines.indexOf(aEngine);
+  },
+
+  _getEngineByName: function ES_getEngineByName(aName) {
+    for each (var engine in this._engines)
+      if (engine.name == aName)
+        return engine;
+
+    return null;
+  },
+
+  _cloneEngine: function ES_cloneEngine(aEngine) {
+    var clonedObj={};
+    for (var i in aEngine)
+      clonedObj[i] = aEngine[i];
+    clonedObj.originalEngine = aEngine;
+    return clonedObj;
+  },
+
+  // Callback for Array's some(). A thisObj must be passed to some()
+  _isSameEngine: function ES_isSameEngine(aEngineClone) {
+    return aEngineClone.originalEngine == this.originalEngine;
+  },
+
+  commit: function ES_commit() {
+    var currentEngine = this._cloneEngine(Services.search.currentEngine);
+    for (var i = 0; i < this._ops.length; i++)
+      this._ops[i].commit();
+
+    // Restore currentEngine if it is a default engine that is still visible.
+    // Needed if the user deletes currentEngine and then restores it.
+    if (this._defaultEngines.some(this._isSameEngine, currentEngine) &&
+        !currentEngine.originalEngine.hidden)
+      Services.search.currentEngine = currentEngine.originalEngine;
+  },
+
+  addEngine: function ES_addEngine(aEngine) {
+    this._engines.push(this._cloneEngine(aEngine));
+  },
+
+  moveEngine: function ES_moveEngine(aEngine, aNewIndex) {
+    if (aNewIndex < 0 || aNewIndex > this._engines.length - 1)
+      throw new Error("ES_moveEngine: invalid aNewIndex!");
+    var index = this._getIndexForEngine(aEngine);
+    if (index == -1)
+      throw new Error("ES_moveEngine: invalid engine?");
+
+    if (index == aNewIndex)
+      return; // nothing to do
+
+    // Move the engine in our internal store
+    var removedEngine = this._engines.splice(index, 1)[0];
+    this._engines.splice(aNewIndex, 0, removedEngine);
+
+    this._ops.push(new EngineMoveOp(aEngine, aNewIndex));
+  },
+
+  removeEngine: function ES_removeEngine(aEngine) {
+    var index = this._getIndexForEngine(aEngine);
+    if (index == -1)
+      throw new Error("invalid engine?");
+
+    this._engines.splice(index, 1);
+    this._ops.push(new EngineRemoveOp(aEngine));
+    if (this._defaultEngines.some(this._isSameEngine, aEngine))
+      gEngineManagerDialog.showRestoreDefaults(true);
+  },
+
+  restoreDefaultEngines: function ES_restoreDefaultEngines() {
+    var added = 0;
+
+    for (var i = 0; i < this._defaultEngines.length; ++i) {
+      var e = this._defaultEngines[i];
+
+      // If the engine is already in the list, just move it.
+      if (this._engines.some(this._isSameEngine, e)) {
+        this.moveEngine(this._getEngineByName(e.name), i);
+      } else {
+        // Otherwise, add it back to our internal store
+        this._engines.splice(i, 0, e);
+        this._ops.push(new EngineUnhideOp(e, i));
+        added++;
+      }
+    }
+    gEngineManagerDialog.showRestoreDefaults(false);
+    return added;
+  },
+
+  changeEngine: function ES_changeEngine(aEngine, aProp, aNewValue) {
+    var index = this._getIndexForEngine(aEngine);
+    if (index == -1)
+      throw new Error("invalid engine?");
+
+    this._engines[index][aProp] = aNewValue;
+    this._ops.push(new EngineChangeOp(aEngine, aProp, aNewValue));
+  },
+
+  reloadIcons: function ES_reloadIcons() {
+    this._engines.forEach(function (e) {
+      e.uri = e.originalEngine.uri;
+    });
+  }
+}
+
+function EngineView(aEngineStore) {
+  this._engineStore = aEngineStore;
+}
+EngineView.prototype = {
+  _engineStore: null,
+  tree: null,
+
+  get lastIndex() {
+    return this.rowCount - 1;
+  },
+  get selectedIndex() {
+    var seln = this.selection;
+    if (seln.getRangeCount() > 0) {
+      var min = {};
+      seln.getRangeAt(0, min, {});
+      return min.value;
+    }
+    return -1;
+  },
+  get selectedEngine() {
+    return this._engineStore.engines[this.selectedIndex];
+  },
+
+  // Helpers
+  rowCountChanged: function (index, count) {
+    this.tree.rowCountChanged(index, count);
+  },
+
+  invalidate: function () {
+    this.tree.invalidate();
+  },
+
+  ensureRowIsVisible: function (index) {
+    this.tree.ensureRowIsVisible(index);
+  },
+
+  getSourceIndexFromDrag: function (dataTransfer) {
+    return parseInt(dataTransfer.getData(ENGINE_FLAVOR));
+  },
+
+  // nsITreeView
+  get rowCount() {
+    return this._engineStore.engines.length;
+  },
+
+  getImageSrc: function(index, column) {
+    if (column.id == "engineName" && this._engineStore.engines[index].iconURI)
+      return this._engineStore.engines[index].iconURI.spec;
+    return "";
+  },
+
+  getCellText: function(index, column) {
+    if (column.id == "engineName")
+      return this._engineStore.engines[index].name;
+    else if (column.id == "engineKeyword")
+      return this._engineStore.engines[index].alias;
+    return "";
+  },
+
+  setTree: function(tree) {
+    this.tree = tree;
+  },
+
+  canDrop: function(targetIndex, orientation, dataTransfer) {
+    var sourceIndex = this.getSourceIndexFromDrag(dataTransfer);
+    return (sourceIndex != -1 &&
+            sourceIndex != targetIndex &&
+            sourceIndex != targetIndex + orientation);
+  },
+
+  drop: function(dropIndex, orientation, dataTransfer) {
+    var sourceIndex = this.getSourceIndexFromDrag(dataTransfer);
+    var sourceEngine = this._engineStore.engines[sourceIndex];
+
+    if (dropIndex > sourceIndex) {
+      if (orientation == Ci.nsITreeView.DROP_BEFORE)
+        dropIndex--;
+    } else {
+      if (orientation == Ci.nsITreeView.DROP_AFTER)
+        dropIndex++;
+    }
+
+    this._engineStore.moveEngine(sourceEngine, dropIndex);
+    gEngineManagerDialog.showRestoreDefaults(true);
+
+    // Redraw, and adjust selection
+    this.invalidate();
+    this.selection.select(dropIndex);
+  },
+
+  selection: null,
+  getRowProperties: function(index) { return ""; },
+  getCellProperties: function(index, column) { return ""; },
+  getColumnProperties: function(column) { return ""; },
+  isContainer: function(index) { return false; },
+  isContainerOpen: function(index) { return false; },
+  isContainerEmpty: function(index) { return false; },
+  isSeparator: function(index) { return false; },
+  isSorted: function(index) { return false; },
+  getParentIndex: function(index) { return -1; },
+  hasNextSibling: function(parentIndex, index) { return false; },
+  getLevel: function(index) { return 0; },
+  getProgressMode: function(index, column) { },
+  getCellValue: function(index, column) { },
+  toggleOpenState: function(index) { },
+  cycleHeader: function(column) { },
+  selectionChanged: function() { },
+  cycleCell: function(row, column) { },
+  isEditable: function(index, column) { return false; },
+  isSelectable: function(index, column) { return false; },
+  setCellValue: function(index, column, value) { },
+  setCellText: function(index, column, value) { },
+  performAction: function(action) { },
+  performActionOnRow: function(action, index) { },
+  performActionOnCell: function(action, index, column) { }
+};