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Diffstat (limited to 'mobile/android/chrome/content/FindHelper.js')
| -rw-r--r-- | mobile/android/chrome/content/FindHelper.js | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/mobile/android/chrome/content/FindHelper.js b/mobile/android/chrome/content/FindHelper.js deleted file mode 100644 index 037b182d6..000000000 --- a/mobile/android/chrome/content/FindHelper.js +++ /dev/null @@ -1,197 +0,0 @@ -/* 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"; - -var FindHelper = { - _finder: null, - _targetTab: null, - _initialViewport: null, - _viewportChanged: false, - _result: null, - - // Start of nsIObserver implementation. - - observe: function(aMessage, aTopic, aData) { - switch(aTopic) { - case "FindInPage:Opened": { - this._findOpened(); - break; - } - - case "Tab:Selected": { - // Allow for page switching. - this._uninit(); - break; - } - - case "FindInPage:Closed": - this._uninit(); - this._findClosed(); - break; - } - }, - - /** - * When the FindInPageBar opens/ becomes visible, it's time to: - * 1. Add listeners for other message types sent from the FindInPageBar - * 2. initialize the Finder instance, if necessary. - */ - _findOpened: function() { - Messaging.addListener(data => this.doFind(data), "FindInPage:Find"); - Messaging.addListener(data => this.findAgain(data, false), "FindInPage:Next"); - Messaging.addListener(data => this.findAgain(data, true), "FindInPage:Prev"); - - // Initialize the finder component for the current page by performing a fake find. - this._init(); - this._finder.requestMatchesCount(""); - }, - - /** - * Fetch the Finder instance from the active tabs' browser and start tracking - * the active viewport. - */ - _init: function() { - // If there's no find in progress, start one. - if (this._finder) { - return; - } - - this._targetTab = BrowserApp.selectedTab; - try { - this._finder = this._targetTab.browser.finder; - } catch (e) { - throw new Error("FindHelper: " + e + "\n" + - "JS stack: \n" + (e.stack || Components.stack.formattedStack)); - } - - this._finder.addResultListener(this); - this._initialViewport = JSON.stringify(this._targetTab.getViewport()); - this._viewportChanged = false; - }, - - /** - * Detach from the Finder instance (so stop listening for messages) and stop - * tracking the active viewport. - */ - _uninit: function() { - // If there's no find in progress, there's nothing to clean up. - if (!this._finder) { - return; - } - - this._finder.removeSelection(); - this._finder.removeResultListener(this); - this._finder = null; - this._targetTab = null; - this._initialViewport = null; - this._viewportChanged = false; - }, - - /** - * When the FindInPageBar closes, it's time to stop listening for its messages. - */ - _findClosed: function() { - Messaging.removeListener("FindInPage:Find"); - Messaging.removeListener("FindInPage:Next"); - Messaging.removeListener("FindInPage:Prev"); - }, - - /** - * Start an asynchronous find-in-page operation, using the current Finder - * instance and request to count the amount of matches. - * If no Finder instance is currently active, we'll lazily initialize it here. - * - * @param {String} searchString Word to search for in the current document - * @return {Object} Echo of the current find action - */ - doFind: function(searchString) { - if (!this._finder) { - this._init(); - } - - this._finder.fastFind(searchString, false); - return { searchString, findBackwards: false }; - }, - - /** - * Restart the same find-in-page operation as before via `doFind()`. If we - * haven't called `doFind()`, we simply kick off a regular find. - * - * @param {String} searchString Word to search for in the current document - * @param {Boolean} findBackwards Direction to search in - * @return {Object} Echo of the current find action - */ - findAgain: function(searchString, findBackwards) { - // This always happens if the user taps next/previous after re-opening the - // search bar, and not only forces _init() but also an initial fastFind(STRING) - // before any findAgain(DIRECTION). - if (!this._finder) { - return this.doFind(searchString); - } - - this._finder.findAgain(findBackwards, false, false); - return { searchString, findBackwards }; - }, - - // Start of Finder.jsm listener implementation. - - /** - * Pass along the count results to FindInPageBar for display. The result that - * is sent to the FindInPageBar is augmented with the current find-in-page count - * limit. - * - * @param {Object} result Result coming from the Finder instance that contains - * the following properties: - * - {Number} total The total amount of matches found - * - {Number} current The index of current found range - * in the document - */ - onMatchesCountResult: function(result) { - this._result = result; - - Messaging.sendRequest(Object.assign({ - type: "FindInPage:MatchesCountResult" - }, this._result)); - }, - - /** - * When a find-in-page action finishes, this method is invoked. This is mainly - * used at the moment to detect if the current viewport has changed, which might - * be indicated by not finding a string in the current page. - * - * @param {Object} aData A dictionary, representing the find result, which - * contains the following properties: - * - {String} searchString Word that was searched for - * in the current document - * - {Number} result One of the following - * Ci.nsITypeAheadFind.* result - * indicators: FIND_FOUND, - * FIND_NOTFOUND, FIND_WRAPPED, - * FIND_PENDING - * - {Boolean} findBackwards Whether the search direction - * was backwards - * - {Boolean} findAgain Whether the previous search - * was repeated - * - {Boolean} drawOutline Whether we may (re-)draw the - * outline of a hyperlink - * - {Boolean} linksOnly Whether links-only mode was - * active - */ - onFindResult: function(aData) { - if (aData.result == Ci.nsITypeAheadFind.FIND_NOTFOUND) { - if (this._viewportChanged) { - if (this._targetTab != BrowserApp.selectedTab) { - // this should never happen - Cu.reportError("Warning: selected tab changed during find!"); - // fall through and restore viewport on the initial tab anyway - } - this._targetTab.sendViewportUpdate(); - } - } else { - // Disabled until bug 1014113 is fixed - // ZoomHelper.zoomToRect(aData.rect); - this._viewportChanged = true; - } - } -}; |