mobile/android/chrome/content/FindHelper.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public
     2  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     3  * You can obtain one at http://mozilla.org/MPL/2.0/. */
     4 "use strict";
     6 var FindHelper = {
     7   _finder: null,
     8   _targetTab: null,
     9   _initialViewport: null,
    10   _viewportChanged: false,
    12   observe: function(aMessage, aTopic, aData) {
    13     switch(aTopic) {
    14       case "FindInPage:Find":
    15         this.doFind(aData);
    16         break;
    18       case "FindInPage:Prev":
    19         this.findAgain(aData, true);
    20         break;
    22       case "FindInPage:Next":
    23         this.findAgain(aData, false);
    24         break;
    26       case "Tab:Selected":
    27       case "FindInPage:Closed":
    28         this.findClosed();
    29         break;
    30     }
    31   },
    33   doFind: function(aSearchString) {
    34     if (!this._finder) {
    35       this._targetTab = BrowserApp.selectedTab;
    36       this._finder = this._targetTab.browser.finder;
    37       this._finder.addResultListener(this);
    38       this._initialViewport = JSON.stringify(this._targetTab.getViewport());
    39       this._viewportChanged = false;
    40     }
    42     this._finder.fastFind(aSearchString, false);
    43   },
    45   findAgain: function(aString, aFindBackwards) {
    46     // This can happen if the user taps next/previous after re-opening the search bar
    47     if (!this._finder) {
    48       this.doFind(aString);
    49       return;
    50     }
    52     this._finder.findAgain(aFindBackwards, false, false);
    53   },
    55   findClosed: function() {
    56     // If there's no find in progress, there's nothing to clean up
    57     if (!this._finder)
    58       return;
    60     this._finder.removeSelection();
    61     this._finder.removeResultListener(this);
    62     this._finder = null;
    63     this._targetTab = null;
    64     this._initialViewport = null;
    65     this._viewportChanged = false;
    66   },
    68   onFindResult: function(aData) {
    69     if (aData.result == Ci.nsITypeAheadFind.FIND_NOTFOUND) {
    70       if (this._viewportChanged) {
    71         if (this._targetTab != BrowserApp.selectedTab) {
    72           // this should never happen
    73           Cu.reportError("Warning: selected tab changed during find!");
    74           // fall through and restore viewport on the initial tab anyway
    75         }
    76         this._targetTab.setViewport(JSON.parse(this._initialViewport));
    77         this._targetTab.sendViewportUpdate();
    78       }
    79     } else {
    80       // Disabled until bug 1014113 is fixed
    81       //ZoomHelper.zoomToRect(aData.rect, -1, false, true);
    82       this._viewportChanged = true;
    83     }
    84   }
    85 };

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