michael@0: // -*- Mode: javascript; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0: // This Source Code Form is subject to the terms of the Mozilla Public
michael@0: // License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: // file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = ["RemoteFinder", "RemoteFinderListener"];
michael@0: 
michael@0: const Ci = Components.interfaces;
michael@0: const Cc = Components.classes;
michael@0: const Cu = Components.utils;
michael@0: 
michael@0: Cu.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: 
michael@0: function RemoteFinder(browser) {
michael@0:   this._browser = browser;
michael@0:   this._listeners = [];
michael@0:   this._searchString = null;
michael@0: 
michael@0:   this._browser.messageManager.addMessageListener("Finder:Result", this);
michael@0:   this._browser.messageManager.sendAsyncMessage("Finder:Initialize");
michael@0: }
michael@0: 
michael@0: RemoteFinder.prototype = {
michael@0:   addResultListener: function (aListener) {
michael@0:     if (this._listeners.indexOf(aListener) === -1)
michael@0:       this._listeners.push(aListener);
michael@0:   },
michael@0: 
michael@0:   removeResultListener: function (aListener) {
michael@0:     this._listeners = this._listeners.filter(l => l != aListener);
michael@0:   },
michael@0: 
michael@0:   receiveMessage: function (aMessage) {
michael@0:     this._searchString = aMessage.data.searchString;
michael@0: 
michael@0:     for (let l of this._listeners) {
michael@0:       l.onFindResult(aMessage.data);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   get searchString() {
michael@0:     return this._searchString;
michael@0:   },
michael@0: 
michael@0:   set caseSensitive(aSensitive) {
michael@0:     this._browser.messageManager.sendAsyncMessage("Finder:CaseSensitive",
michael@0:                                                   { caseSensitive: aSensitive });
michael@0:   },
michael@0: 
michael@0:   fastFind: function (aSearchString, aLinksOnly) {
michael@0:     this._browser.messageManager.sendAsyncMessage("Finder:FastFind",
michael@0:                                                   { searchString: aSearchString,
michael@0:                                                     linksOnly: aLinksOnly });
michael@0:   },
michael@0: 
michael@0:   findAgain: function (aFindBackwards, aLinksOnly) {
michael@0:     this._browser.messageManager.sendAsyncMessage("Finder:FindAgain",
michael@0:                                                   { findBackwards: aFindBackwards,
michael@0:                                                     linksOnly: aLinksOnly });
michael@0:   },
michael@0: 
michael@0:   highlight: function (aHighlight, aWord) {
michael@0:     this._browser.messageManager.sendAsyncMessage("Finder:Highlight",
michael@0:                                                   { highlight: aHighlight,
michael@0:                                                     word: aWord });
michael@0:   },
michael@0: 
michael@0:   enableSelection: function () {
michael@0:     this._browser.messageManager.sendAsyncMessage("Finder:EnableSelection");
michael@0:   },
michael@0: 
michael@0:   removeSelection: function () {
michael@0:     this._browser.messageManager.sendAsyncMessage("Finder:RemoveSelection");
michael@0:   },
michael@0: 
michael@0:   focusContent: function () {
michael@0:     this._browser.messageManager.sendAsyncMessage("Finder:FocusContent");
michael@0:   },
michael@0: 
michael@0:   keyPress: function (aEvent) {
michael@0:     this._browser.messageManager.sendAsyncMessage("Finder:KeyPress",
michael@0:                                                   { keyCode: aEvent.keyCode,
michael@0:                                                     shiftKey: aEvent.shiftKey });
michael@0:   }
michael@0: }
michael@0: 
michael@0: function RemoteFinderListener(global) {
michael@0:   let {Finder} = Cu.import("resource://gre/modules/Finder.jsm", {});
michael@0:   this._finder = new Finder(global.docShell);
michael@0:   this._finder.addResultListener(this);
michael@0:   this._global = global;
michael@0: 
michael@0:   for (let msg of this.MESSAGES) {
michael@0:     global.addMessageListener(msg, this);
michael@0:   }
michael@0: }
michael@0: 
michael@0: RemoteFinderListener.prototype = {
michael@0:   MESSAGES: [
michael@0:     "Finder:CaseSensitive",
michael@0:     "Finder:FastFind",
michael@0:     "Finder:FindAgain",
michael@0:     "Finder:Highlight",
michael@0:     "Finder:EnableSelection",
michael@0:     "Finder:RemoveSelection",
michael@0:     "Finder:FocusContent",
michael@0:     "Finder:KeyPress"
michael@0:   ],
michael@0: 
michael@0:   onFindResult: function (aData) {
michael@0:     this._global.sendAsyncMessage("Finder:Result", aData);
michael@0:   },
michael@0: 
michael@0:   //XXXmikedeboer-20131016: implement |shouldFocusContent| here to mitigate
michael@0:   //                        issues like bug 921338 and bug 921308.
michael@0:   shouldFocusContent: function () {
michael@0:     return true;
michael@0:   },
michael@0: 
michael@0:   receiveMessage: function (aMessage) {
michael@0:     let data = aMessage.data;
michael@0: 
michael@0:     switch (aMessage.name) {
michael@0:       case "Finder:CaseSensitive":
michael@0:         this._finder.caseSensitive = data.caseSensitive;
michael@0:         break;
michael@0: 
michael@0:       case "Finder:FastFind":
michael@0:         this._finder.fastFind(data.searchString, data.linksOnly);
michael@0:         break;
michael@0: 
michael@0:       case "Finder:FindAgain":
michael@0:         this._finder.findAgain(data.findBackwards, data.linksOnly);
michael@0:         break;
michael@0: 
michael@0:       case "Finder:Highlight":
michael@0:         this._finder.highlight(data.highlight, data.word);
michael@0:         break;
michael@0: 
michael@0:       case "Finder:RemoveSelection":
michael@0:         this._finder.removeSelection();
michael@0:         break;
michael@0: 
michael@0:       case "Finder:FocusContent":
michael@0:         this._finder.focusContent();
michael@0:         break;
michael@0: 
michael@0:       case "Finder:KeyPress":
michael@0:         this._finder.keyPress(data);
michael@0:         break;
michael@0:     }
michael@0:   }
michael@0: };