[Pkg-javascript-commits] [pdf.js] 112/207: Increases page cache size when needed
David Prévot
taffit at moszumanska.debian.org
Mon Jul 28 15:36:37 UTC 2014
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taffit pushed a commit to branch master
in repository pdf.js.
commit df87df59b60a38c02d1d5f1c9ac3f0d30b933c6d
Author: Yury Delendik <ydelendik at mozilla.com>
Date: Tue Jun 17 13:41:40 2014 -0500
Increases page cache size when needed
---
web/ui_utils.js | 6 ++++++
web/viewer.js | 8 ++++++--
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/web/ui_utils.js b/web/ui_utils.js
index 9caa815..29ee01b 100644
--- a/web/ui_utils.js
+++ b/web/ui_utils.js
@@ -255,5 +255,11 @@ var Cache = function cacheCache(size) {
data.shift().destroy();
}
};
+ this.resize = function (newSize) {
+ size = newSize;
+ while (data.length > size) {
+ data.shift().destroy();
+ }
+ };
};
diff --git a/web/viewer.js b/web/viewer.js
index 553765f..30cdf27 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -28,7 +28,7 @@ var DEFAULT_URL = 'compressed.tracemonkey-pldi-09.pdf';
var DEFAULT_SCALE = 'auto';
var DEFAULT_SCALE_DELTA = 1.1;
var UNKNOWN_SCALE = 0;
-var CACHE_SIZE = 10;
+var DEFAULT_CACHE_SIZE = 10;
var CSS_UNITS = 96.0 / 72.0;
var SCROLLBAR_PADDING = 40;
var VERTICAL_PADDING = 5;
@@ -91,7 +91,7 @@ var mozL10n = document.mozL10n || document.webL10n;
//#include chromecom.js
//#endif
-var cache = new Cache(CACHE_SIZE);
+var cache = new Cache(DEFAULT_CACHE_SIZE);
var currentPageNumber = 1;
//#include view_history.js
@@ -1964,6 +1964,10 @@ function updateViewarea() {
return;
}
+ var suggestedCacheSize = Math.max(DEFAULT_CACHE_SIZE,
+ 2 * visiblePages.length + 1);
+ cache.resize(suggestedCacheSize);
+
PDFView.renderHighestPriority(visible);
var currentId = PDFView.page;
--
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