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Merge pull request #6587 from timvandermeij/view-history-memory

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Move VIEW_HISTORY_MEMORY constant to `view_history.js`
This commit is contained in:
Jonas Jenwald 2015-11-02 16:46:32 +01:00
commit cbce05b893
2 changed files with 6 additions and 4 deletions
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9
web/view_history.js
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@ -14,10 +14,12 @@
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License.
*/ */
/* globals PDFJS, VIEW_HISTORY_MEMORY, Promise */ /* globals PDFJS, Promise */
'use strict'; 'use strict';
var DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20;
/** /**
* View History - This is a utility for saving various view parameters for * View History - This is a utility for saving various view parameters for
* recently opened files. * recently opened files.
@ -28,8 +30,9 @@
* - GENERIC or CHROME - uses localStorage, if it is available. * - GENERIC or CHROME - uses localStorage, if it is available.
*/ */
var ViewHistory = (function ViewHistoryClosure() { var ViewHistory = (function ViewHistoryClosure() {
function ViewHistory(fingerprint) { function ViewHistory(fingerprint, cacheSize) {
this.fingerprint = fingerprint; this.fingerprint = fingerprint;
this.cacheSize = cacheSize || DEFAULT_VIEW_HISTORY_CACHE_SIZE;
this.isInitializedPromiseResolved = false; this.isInitializedPromiseResolved = false;
this.initializedPromise = this.initializedPromise =
this._readFromStorage().then(function (databaseStr) { this._readFromStorage().then(function (databaseStr) {
@ -39,7 +42,7 @@ var ViewHistory = (function ViewHistoryClosure() {
if (!('files' in database)) { if (!('files' in database)) {
database.files = []; database.files = [];
} }
if (database.files.length >= VIEW_HISTORY_MEMORY) { if (database.files.length >= this.cacheSize) {
database.files.shift(); database.files.shift();
} }
var index; var index;

1
web/viewer.js
View File

@ -31,7 +31,6 @@ var DEFAULT_URL = 'compressed.tracemonkey-pldi-09.pdf';
var DEFAULT_SCALE_DELTA = 1.1; var DEFAULT_SCALE_DELTA = 1.1;
var MIN_SCALE = 0.25; var MIN_SCALE = 0.25;
var MAX_SCALE = 10.0; var MAX_SCALE = 10.0;
var VIEW_HISTORY_MEMORY = 20;
var SCALE_SELECT_CONTAINER_PADDING = 8; var SCALE_SELECT_CONTAINER_PADDING = 8;
var SCALE_SELECT_PADDING = 22; var SCALE_SELECT_PADDING = 22;
var PAGE_NUMBER_LOADING_INDICATOR = 'visiblePageIsLoading'; var PAGE_NUMBER_LOADING_INDICATOR = 'visiblePageIsLoading';