mirror of
https://github.com/mozilla/pdf.js.git
synced 2025-04-19 22:58:07 +02:00
Unify the multi_page_viewer and the basic viewer
This commit is contained in:
Vivien Nicolas
parent
fad6e36a80
commit
0edb6546a5
8 changed files with 435 additions and 1000 deletions
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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body {
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background-color: #929292;
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font-family: 'Lucida Grande', 'Lucida Sans Unicode', Helvetica, Arial, Verdana, sans-serif;
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margin: 0px;
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padding: 0px;
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}
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canvas {
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box-shadow: 0px 4px 10px #000;
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-moz-box-shadow: 0px 4px 10px #000;
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-webkit-box-shadow: 0px 4px 10px #000;
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}
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span {
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font-size: 0.8em;
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text-shadow: 0px 1px 0px #fff;
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}
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.control {
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display: inline-block;
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float: left;
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margin: 0px 20px 0px 0px;
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padding: 0px 4px 0px 0px;
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}
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.control > input {
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float: left;
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border: 1px solid #4d4d4d;
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height: 20px;
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padding: 0px;
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margin: 0px 2px 0px 0px;
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border-radius: 3px;
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-moz-border-radius: 3px;
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-webkit-border-radius: 3px;
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box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.3);
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-moz-box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.3);
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-webkit-box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.3);
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}
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.control > select {
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float: left;
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border: 1px solid #4d4d4d;
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height: 22px;
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padding: 2px 0px 0px;
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margin: 0px 0px 1px;
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border-radius: 3px;
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-moz-border-radius: 3px;
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-webkit-border-radius: 3px;
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box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.3);
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-moz-box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.3);
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-webkit-box-shadow: inset 0px 1px 1px rgba(0, 0, 0, 0.3);
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}
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.control > span {
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cursor: default;
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float: left;
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height: 18px;
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margin: 5px 2px 0px;
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padding: 0px;
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user-select: none;
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-moz-user-select: none;
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-webkit-user-select: none;
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}
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.control .label {
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clear: both;
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float: left;
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font-size: 0.65em;
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margin: 2px 0px 0px;
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position: relative;
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text-align: center;
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width: 100%;
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}
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.thumbnailPageNumber {
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color: #fff;
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font-size: 0.55em;
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text-align: right;
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margin: -6px 2px 6px 0px;
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width: 102px;
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}
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.thumbnail {
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width: 104px;
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height: 134px;
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margin: 0px auto 10px;
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}
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.page {
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width: 816px;
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height: 1056px;
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margin: 10px auto;
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}
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#controls {
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background-color: #eee;
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background: -moz-linear-gradient(center bottom, #ddd 0%, #fff 100%);
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background: -webkit-gradient(linear, left bottom, left top, color-stop(0.0, #ddd), color-stop(1.0, #fff));
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border-bottom: 1px solid #666;
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padding: 4px 0px 0px 8px;
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position: fixed;
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left: 0px;
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top: 0px;
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height: 40px;
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width: 100%;
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box-shadow: 0px 2px 8px #000;
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-moz-box-shadow: 0px 2px 8px #000;
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-webkit-box-shadow: 0px 2px 8px #000;
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}
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#controls input {
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user-select: text;
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-moz-user-select: text;
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-webkit-user-select: text;
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}
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button {
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background-color: #ddd;
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background: -moz-linear-gradient(center bottom, #c3c3c3 0%, #f3f3f3 100%);
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background: -webkit-gradient(linear, left bottom, left top, color-stop(0.0, #c3c3c3), color-stop(1.0, #f3f3f3));
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border: 1px solid #4d4d4d;
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cursor: default;
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float: left;
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margin: 0px 0px 1px;
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width: 29px;
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height: 22px;
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border-radius: 3px;
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-moz-border-radius: 3px;
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-webkit-border-radius: 3px;
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}
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button:disabled {
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background-color: #eee;
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background: -moz-linear-gradient(center bottom, #ddd 0%, #fff 100%);
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background: -webkit-gradient(linear, left bottom, left top, color-stop(0.0, #ddd), color-stop(1.0, #fff));
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}
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button:disabled > span {
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opacity: 0.3;
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-moz-opacity: 0.3;
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-webkit-opacity: 0.3;
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}
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button.down {
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background-color: #777;
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background: -moz-linear-gradient(center bottom, #888 0%, #555 100%);
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background: -webkit-gradient(linear, left bottom, left top, color-stop(0.0, #888), color-stop(1.0, #555));
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box-shadow: inset 0px 0px 2px rgba(0, 0, 0, 0.8);
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-moz-box-shadow: inset 0px 0px 2px rgba(0, 0, 0, 0.8);
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-webkit-box-shadow: inset 0px 0px 2px rgba(0, 0, 0, 0.8);
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}
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#previousPageButton {
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width: 28px;
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border-right: 0px;
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border-top-right-radius: 0px;
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border-bottom-right-radius: 0px;
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-moz-border-radius-topright: 0px;
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-moz-border-radius-bottomright: 0px;
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-webkit-border-top-right-radius: 0px;
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-webkit-border-bottom-right-radius: 0px;
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}
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#previousPageButton > span {
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background: url('images/buttons.png') no-repeat 0px 0px;
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display: inline-block;
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width: 19px;
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height: 19px;
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}
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#nextPageButton {
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width: 28px;
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border-top-left-radius: 0px;
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border-bottom-left-radius: 0px;
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-moz-border-radius-topleft: 0px;
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-moz-border-radius-bottomleft: 0px;
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-webkit-border-top-left-radius: 0px;
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-webkit-border-bottom-left-radius: 0px;
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}
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#nextPageButton > span {
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background: url('images/buttons.png') no-repeat -19px 0px;
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display: inline-block;
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width: 19px;
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height: 19px;
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}
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#singleLayoutButton {
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width: 28px;
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border-right: 0px;
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border-top-right-radius: 0px;
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border-bottom-right-radius: 0px;
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-moz-border-radius-topright: 0px;
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-moz-border-radius-bottomright: 0px;
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-webkit-border-top-right-radius: 0px;
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-webkit-border-bottom-right-radius: 0px;
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}
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#singleLayoutButton > span {
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background: url('images/buttons.png') no-repeat -57px 0px;
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display: inline-block;
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width: 19px;
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height: 19px;
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}
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#splitLayoutButton {
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width: 28px;
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border-top-left-radius: 0px;
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border-bottom-left-radius: 0px;
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-moz-border-radius-topleft: 0px;
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-moz-border-radius-bottomleft: 0px;
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-webkit-border-top-left-radius: 0px;
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-webkit-border-bottom-left-radius: 0px;
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}
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#splitLayoutButton > span {
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background: url('images/buttons.png') no-repeat -76px 0px;
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display: inline-block;
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width: 19px;
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height: 19px;
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}
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#openFileButton {
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margin-left: 3px;
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}
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#openFileButton > span {
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background: url('images/buttons.png') no-repeat -38px 0px;
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display: inline-block;
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width: 19px;
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height: 19px;
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}
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#fileInput {
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display: none;
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}
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#pageNumber {
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text-align: right;
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}
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#sidebar {
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position: fixed;
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width: 200px;
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top: 62px;
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bottom: 18px;
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left: -140px;
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transition: left 0.25s ease-in-out 1s;
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-moz-transition: left 0.25s ease-in-out 1s;
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-webkit-transition: left 0.25s ease-in-out 1s;
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}
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#sidebar:hover {
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left: 0px;
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transition: left 0.25s ease-in-out 0s;
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-moz-transition: left 0.25s ease-in-out 0s;
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-webkit-transition: left 0.25s ease-in-out 0s;
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}
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#sidebarBox {
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background-color: rgba(0, 0, 0, 0.7);
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width: 150px;
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height: 100%;
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border-top-right-radius: 8px;
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border-bottom-right-radius: 8px;
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-moz-border-radius-topright: 8px;
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-moz-border-radius-bottomright: 8px;
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-webkit-border-top-right-radius: 8px;
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-webkit-border-bottom-right-radius: 8px;
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box-shadow: 0px 2px 8px #000;
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-moz-box-shadow: 0px 2px 8px #000;
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-webkit-box-shadow: 0px 2px 8px #000;
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}
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#sidebarScrollView {
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position: absolute;
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overflow: hidden;
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overflow-y: auto;
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top: 10px;
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bottom: 10px;
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left: 10px;
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width: 130px;
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}
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#sidebarContentView {
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height: auto;
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width: 100px;
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}
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#viewer {
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margin: 44px 0px 0px;
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padding: 8px 0px;
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}
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@ -1,66 +0,0 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>pdf.js Multi-Page Viewer</title>
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<meta http-equiv="Content-type" content="text/html;charset=UTF-8"/>
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<link rel="stylesheet" href="multi_page_viewer.css" type="text/css" media="screen"/>
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<script type="text/javascript" src="compatibility.js"></script>
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<script type="text/javascript" src="../pdf.js"></script>
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<script type="text/javascript" src="../fonts.js"></script>
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<script type="text/javascript" src="../crypto.js"></script>
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<script type="text/javascript" src="../glyphlist.js"></script>
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<script type="text/javascript" src="multi_page_viewer.js"></script>
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</head>
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<body>
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<div id="controls">
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<span class="control">
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<button id="previousPageButton" disabled="disabled"><span></span></button>
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<button id="nextPageButton" disabled="disabled"><span></span></button>
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<span class="label">Previous/Next</span>
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</span>
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<span class="control">
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<input type="text" id="pageNumber" value="1" size="2"/>
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<span>/</span>
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<span id="numPages">--</span>
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<span class="label">Page Number</span>
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</span>
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<span class="control">
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<select id="scaleSelect">
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<option value="50">50%</option>
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<option value="75">75%</option>
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<option value="100">100%</option>
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<option value="125">125%</option>
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<option value="150" selected="selected">150%</option>
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<option value="200">200%</option>
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</select>
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<span class="label">Zoom</span>
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</span>
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<!-- WIP: Leave commented out until implemented -->
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<!--
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<span class="control">
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<button id="singleLayoutButton" class="selected"><span></span></button>
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<button id="splitLayoutButton"><span></span></button>
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<span class="label">Page Layout</span>
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</span>
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-->
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<span class="control" id="fileWrapper">
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<button id="openFileButton"><span></span></button>
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<input type="file" id="fileInput"/>
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<span class="label">Open File</span>
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</span>
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</div>
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<!-- EXPERIMENTAL: Slide-out sidebar with page thumbnails (comment-out to disable) -->
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<div id="sidebar">
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<div id="sidebarBox">
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<div id="sidebarScrollView">
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<div id="sidebarContentView"></div>
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</div>
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</div>
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</div>
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<div id="viewer"></div>
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</body>
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</html>
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@ -1,519 +0,0 @@
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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'use strict';
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var pageTimeout;
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var PDFViewer = {
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queryParams: {},
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element: null,
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sidebarContentView: null,
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previousPageButton: null,
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nextPageButton: null,
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pageNumberInput: null,
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scaleSelect: null,
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fileInput: null,
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willJumpToPage: false,
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pdf: null,
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url: 'compressed.tracemonkey-pldi-09.pdf',
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pageNumber: 1,
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numberOfPages: 1,
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scale: 1.0,
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pageWidth: function(page) {
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var pdfToCssUnitsCoef = 96.0 / 72.0;
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var width = (page.mediaBox[2] - page.mediaBox[0]);
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return width * PDFViewer.scale * pdfToCssUnitsCoef;
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},
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|
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pageHeight: function(page) {
|
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var pdfToCssUnitsCoef = 96.0 / 72.0;
|
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var height = (page.mediaBox[3] - page.mediaBox[1]);
|
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return height * PDFViewer.scale * pdfToCssUnitsCoef;
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},
|
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|
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lastPagesDrawn: [],
|
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|
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visiblePages: function() {
|
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var pageBottomMargin = 10;
|
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var windowTop = window.pageYOffset;
|
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var windowBottom = window.pageYOffset + window.innerHeight;
|
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|
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var pageHeight, page;
|
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var i, n = PDFViewer.numberOfPages, currentHeight = pageBottomMargin;
|
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for (i = 1; i <= n; i++) {
|
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var page = PDFViewer.pdf.getPage(i);
|
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pageHeight = PDFViewer.pageHeight(page) + pageBottomMargin;
|
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if (currentHeight + pageHeight > windowTop)
|
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break;
|
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currentHeight += pageHeight;
|
||||
}
|
||||
|
||||
var pages = [];
|
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for (; i <= n && currentHeight < windowBottom; i++) {
|
||||
var page = PDFViewer.pdf.getPage(i);
|
||||
pageHeight = PDFViewer.pageHeight(page) + pageBottomMargin;
|
||||
currentHeight += pageHeight;
|
||||
pages.push(i);
|
||||
}
|
||||
|
||||
return pages;
|
||||
},
|
||||
|
||||
createThumbnail: function(num) {
|
||||
if (PDFViewer.sidebarContentView) {
|
||||
var anchor = document.createElement('a');
|
||||
anchor.href = '#' + num;
|
||||
|
||||
var containerDiv = document.createElement('div');
|
||||
containerDiv.id = 'thumbnailContainer' + num;
|
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containerDiv.className = 'thumbnail';
|
||||
|
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var pageNumberDiv = document.createElement('div');
|
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pageNumberDiv.className = 'thumbnailPageNumber';
|
||||
pageNumberDiv.innerHTML = '' + num;
|
||||
|
||||
anchor.appendChild(containerDiv);
|
||||
PDFViewer.sidebarContentView.appendChild(anchor);
|
||||
PDFViewer.sidebarContentView.appendChild(pageNumberDiv);
|
||||
}
|
||||
},
|
||||
|
||||
removeThumbnail: function(num) {
|
||||
var div = document.getElementById('thumbnailContainer' + num);
|
||||
|
||||
if (div) {
|
||||
while (div.hasChildNodes()) {
|
||||
div.removeChild(div.firstChild);
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
drawThumbnail: function(num) {
|
||||
if (!PDFViewer.pdf)
|
||||
return;
|
||||
|
||||
var div = document.getElementById('thumbnailContainer' + num);
|
||||
|
||||
if (div && !div.hasChildNodes()) {
|
||||
var page = PDFViewer.pdf.getPage(num);
|
||||
var canvas = document.createElement('canvas');
|
||||
|
||||
canvas.id = 'thumbnail' + num;
|
||||
canvas.mozOpaque = true;
|
||||
|
||||
var pageWidth = PDFViewer.pageWidth(page);
|
||||
var pageHeight = PDFViewer.pageHeight(page);
|
||||
var thumbScale = Math.min(104 / pageWidth, 134 / pageHeight);
|
||||
canvas.width = pageWidth * thumbScale;
|
||||
canvas.height = pageHeight * thumbScale;
|
||||
div.appendChild(canvas);
|
||||
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.save();
|
||||
ctx.fillStyle = 'rgb(255, 255, 255)';
|
||||
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
||||
ctx.restore();
|
||||
|
||||
page.startRendering(ctx, function() { });
|
||||
}
|
||||
},
|
||||
|
||||
createPage: function(num) {
|
||||
var page = PDFViewer.pdf.getPage(num);
|
||||
|
||||
var anchor = document.createElement('a');
|
||||
anchor.name = '' + num;
|
||||
|
||||
var div = document.createElement('div');
|
||||
div.id = 'pageContainer' + num;
|
||||
div.className = 'page';
|
||||
div.style.width = PDFViewer.pageWidth(page) + 'px';
|
||||
div.style.height = PDFViewer.pageHeight(page) + 'px';
|
||||
|
||||
PDFViewer.element.appendChild(anchor);
|
||||
PDFViewer.element.appendChild(div);
|
||||
},
|
||||
|
||||
removePage: function(num) {
|
||||
var div = document.getElementById('pageContainer' + num);
|
||||
|
||||
if (div) {
|
||||
while (div.hasChildNodes()) {
|
||||
div.removeChild(div.firstChild);
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
drawPage: function(num) {
|
||||
if (!PDFViewer.pdf)
|
||||
return;
|
||||
|
||||
var div = document.getElementById('pageContainer' + num);
|
||||
|
||||
if (div && !div.hasChildNodes()) {
|
||||
var page = PDFViewer.pdf.getPage(num);
|
||||
var canvas = document.createElement('canvas');
|
||||
|
||||
canvas.id = 'page' + num;
|
||||
canvas.mozOpaque = true;
|
||||
|
||||
canvas.width = PDFViewer.pageWidth(page);
|
||||
canvas.height = PDFViewer.pageHeight(page);
|
||||
div.appendChild(canvas);
|
||||
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.save();
|
||||
ctx.fillStyle = 'rgb(255, 255, 255)';
|
||||
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
||||
ctx.restore();
|
||||
|
||||
page.startRendering(ctx, function() { });
|
||||
}
|
||||
},
|
||||
|
||||
changeScale: function(num) {
|
||||
while (PDFViewer.element.hasChildNodes()) {
|
||||
PDFViewer.element.removeChild(PDFViewer.element.firstChild);
|
||||
}
|
||||
|
||||
PDFViewer.scale = num / 100;
|
||||
|
||||
var i;
|
||||
|
||||
if (PDFViewer.pdf) {
|
||||
for (i = 1; i <= PDFViewer.numberOfPages; i++) {
|
||||
PDFViewer.createPage(i);
|
||||
}
|
||||
}
|
||||
|
||||
for (i = 0; i < PDFViewer.scaleSelect.childNodes; i++) {
|
||||
var option = PDFViewer.scaleSelect.childNodes[i];
|
||||
|
||||
if (option.value == num) {
|
||||
if (!option.selected) {
|
||||
option.selected = 'selected';
|
||||
}
|
||||
} else {
|
||||
if (option.selected) {
|
||||
option.removeAttribute('selected');
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
PDFViewer.scaleSelect.value = Math.floor(PDFViewer.scale * 100) + '%';
|
||||
|
||||
// Clear the array of the last pages drawn to force a redraw.
|
||||
PDFViewer.lastPagesDrawn = [];
|
||||
|
||||
// Jump the scroll position to the correct page.
|
||||
PDFViewer.goToPage(PDFViewer.pageNumber);
|
||||
},
|
||||
|
||||
goToPage: function(num) {
|
||||
if (1 <= num && num <= PDFViewer.numberOfPages) {
|
||||
PDFViewer.pageNumber = num;
|
||||
PDFViewer.pageNumberInput.value = PDFViewer.pageNumber;
|
||||
PDFViewer.willJumpToPage = true;
|
||||
|
||||
if (document.location.hash.substr(1) == PDFViewer.pageNumber)
|
||||
// Force a "scroll event" to redraw
|
||||
setTimeout(window.onscroll, 0);
|
||||
document.location.hash = PDFViewer.pageNumber;
|
||||
|
||||
PDFViewer.previousPageButton.disabled = (PDFViewer.pageNumber === 1);
|
||||
PDFViewer.nextPageButton.disabled = (PDFViewer.pageNumber === PDFViewer.numberOfPages);
|
||||
}
|
||||
},
|
||||
|
||||
goToPreviousPage: function() {
|
||||
if (PDFViewer.pageNumber > 1) {
|
||||
PDFViewer.goToPage(--PDFViewer.pageNumber);
|
||||
}
|
||||
},
|
||||
|
||||
goToNextPage: function() {
|
||||
if (PDFViewer.pageNumber < PDFViewer.numberOfPages) {
|
||||
PDFViewer.goToPage(++PDFViewer.pageNumber);
|
||||
}
|
||||
},
|
||||
|
||||
openURL: function(url) {
|
||||
PDFViewer.url = url;
|
||||
document.title = url;
|
||||
if (url.indexOf("http") == 0)
|
||||
return;
|
||||
|
||||
if (this.thumbsLoadingInterval) {
|
||||
// cancel thumbs loading operations
|
||||
clearInterval(this.thumbsLoadingInterval);
|
||||
this.thumbsLoadingInterval = null;
|
||||
}
|
||||
|
||||
var req = new XMLHttpRequest();
|
||||
req.open('GET', url);
|
||||
req.mozResponseType = req.responseType = 'arraybuffer';
|
||||
req.expected = (document.URL.indexOf('file:') === 0) ? 0 : 200;
|
||||
|
||||
req.onreadystatechange = function() {
|
||||
if (req.readyState === 4 && req.status === req.expected) {
|
||||
var data = (req.mozResponseArrayBuffer || req.mozResponse ||
|
||||
req.responseArrayBuffer || req.response);
|
||||
|
||||
PDFViewer.readPDF(data);
|
||||
}
|
||||
};
|
||||
|
||||
req.send(null);
|
||||
},
|
||||
|
||||
thumbsLoadingInterval: null,
|
||||
|
||||
readPDF: function(data) {
|
||||
while (PDFViewer.element.hasChildNodes()) {
|
||||
PDFViewer.element.removeChild(PDFViewer.element.firstChild);
|
||||
}
|
||||
|
||||
while (PDFViewer.sidebarContentView.hasChildNodes()) {
|
||||
PDFViewer.sidebarContentView.removeChild(
|
||||
PDFViewer.sidebarContentView.firstChild
|
||||
);
|
||||
}
|
||||
|
||||
PDFViewer.pdf = new PDFDoc(new Stream(data));
|
||||
PDFViewer.numberOfPages = PDFViewer.pdf.numPages;
|
||||
document.getElementById('numPages').innerHTML =
|
||||
PDFViewer.numberOfPages.toString();
|
||||
|
||||
for (var i = 1; i <= PDFViewer.numberOfPages; i++) {
|
||||
PDFViewer.createPage(i);
|
||||
}
|
||||
|
||||
if (PDFViewer.numberOfPages > 0) {
|
||||
PDFViewer.drawPage(1);
|
||||
document.location.hash = 1;
|
||||
|
||||
// slowly loading the thumbs (few per second)
|
||||
// first time we are loading more images than subsequent
|
||||
var currentPageIndex = 1, imagesToLoad = 15;
|
||||
this.thumbsLoadingInterval = setInterval((function() {
|
||||
while (imagesToLoad-- > 0) {
|
||||
if (currentPageIndex > PDFViewer.numberOfPages) {
|
||||
clearInterval(this.thumbsLoadingInterval);
|
||||
this.thumbsLoadingInterval = null;
|
||||
return;
|
||||
}
|
||||
PDFViewer.createThumbnail(currentPageIndex);
|
||||
PDFViewer.drawThumbnail(currentPageIndex);
|
||||
++currentPageIndex;
|
||||
}
|
||||
imagesToLoad = 3; // next time loading less images
|
||||
}).bind(this), 500);
|
||||
}
|
||||
|
||||
PDFViewer.previousPageButton.disabled = (PDFViewer.pageNumber === 1);
|
||||
PDFViewer.nextPageButton.disabled = (PDFViewer.pageNumber === PDFViewer.numberOfPages);
|
||||
}
|
||||
};
|
||||
|
||||
window.onload = function() {
|
||||
// Parse the URL query parameters into a cached object.
|
||||
PDFViewer.queryParams = function() {
|
||||
var qs = window.location.search.substring(1);
|
||||
var kvs = qs.split('&');
|
||||
var params = {};
|
||||
|
||||
for (var i = 0; i < kvs.length; ++i) {
|
||||
var kv = kvs[i].split('=');
|
||||
params[unescape(kv[0])] = unescape(kv[1]);
|
||||
}
|
||||
|
||||
return params;
|
||||
}();
|
||||
|
||||
PDFViewer.element = document.getElementById('viewer');
|
||||
|
||||
PDFViewer.sidebarContentView = document.getElementById('sidebarContentView');
|
||||
|
||||
PDFViewer.pageNumberInput = document.getElementById('pageNumber');
|
||||
PDFViewer.pageNumberInput.onkeydown = function(evt) {
|
||||
var charCode = evt.charCode || evt.keyCode;
|
||||
|
||||
// Up arrow key.
|
||||
if (charCode === 38) {
|
||||
PDFViewer.goToNextPage();
|
||||
this.select();
|
||||
}
|
||||
|
||||
// Down arrow key.
|
||||
else if (charCode === 40) {
|
||||
PDFViewer.goToPreviousPage();
|
||||
this.select();
|
||||
}
|
||||
|
||||
// All other non-numeric keys (excluding Left arrow, Right arrow,
|
||||
// Backspace, and Delete keys).
|
||||
else if ((charCode < 48 || charCode > 57) &&
|
||||
charCode !== 8 && // Backspace
|
||||
charCode !== 46 && // Delete
|
||||
charCode !== 37 && // Left arrow
|
||||
charCode !== 39 // Right arrow
|
||||
) {
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
};
|
||||
PDFViewer.pageNumberInput.onkeyup = function(evt) {
|
||||
var charCode = evt.charCode || evt.keyCode;
|
||||
|
||||
// All numeric keys, Backspace, and Delete.
|
||||
if ((charCode >= 48 && charCode <= 57) ||
|
||||
charCode === 8 || // Backspace
|
||||
charCode === 46 // Delete
|
||||
) {
|
||||
PDFViewer.goToPage(this.value);
|
||||
}
|
||||
|
||||
this.focus();
|
||||
};
|
||||
|
||||
PDFViewer.previousPageButton = document.getElementById('previousPageButton');
|
||||
PDFViewer.previousPageButton.onclick = function(evt) {
|
||||
PDFViewer.goToPreviousPage();
|
||||
};
|
||||
PDFViewer.previousPageButton.onmousedown = function(evt) {
|
||||
this.className = 'down';
|
||||
};
|
||||
PDFViewer.previousPageButton.onmouseup = function(evt) {
|
||||
this.className = '';
|
||||
};
|
||||
PDFViewer.previousPageButton.onmouseout = function(evt) {
|
||||
this.className = '';
|
||||
};
|
||||
|
||||
PDFViewer.nextPageButton = document.getElementById('nextPageButton');
|
||||
PDFViewer.nextPageButton.onclick = function(evt) {
|
||||
PDFViewer.goToNextPage();
|
||||
};
|
||||
PDFViewer.nextPageButton.onmousedown = function(evt) {
|
||||
this.className = 'down';
|
||||
};
|
||||
PDFViewer.nextPageButton.onmouseup = function(evt) {
|
||||
this.className = '';
|
||||
};
|
||||
PDFViewer.nextPageButton.onmouseout = function(evt) {
|
||||
this.className = '';
|
||||
};
|
||||
|
||||
PDFViewer.scaleSelect = document.getElementById('scaleSelect');
|
||||
PDFViewer.scaleSelect.onchange = function(evt) {
|
||||
PDFViewer.changeScale(parseInt(this.value));
|
||||
};
|
||||
|
||||
if (window.File && window.FileReader && window.FileList && window.Blob) {
|
||||
var openFileButton = document.getElementById('openFileButton');
|
||||
openFileButton.onclick = function(evt) {
|
||||
PDFViewer.fileInput.click();
|
||||
};
|
||||
openFileButton.onmousedown = function(evt) {
|
||||
this.className = 'down';
|
||||
};
|
||||
openFileButton.onmouseup = function(evt) {
|
||||
this.className = '';
|
||||
};
|
||||
openFileButton.onmouseout = function(evt) {
|
||||
this.className = '';
|
||||
};
|
||||
|
||||
PDFViewer.fileInput = document.getElementById('fileInput');
|
||||
PDFViewer.fileInput.onchange = function(evt) {
|
||||
var files = evt.target.files;
|
||||
|
||||
if (files.length > 0) {
|
||||
var file = files[0];
|
||||
var fileReader = new FileReader();
|
||||
|
||||
document.title = file.name;
|
||||
|
||||
// Read the local file into a Uint8Array.
|
||||
fileReader.onload = function(evt) {
|
||||
var data = evt.target.result;
|
||||
var buffer = new ArrayBuffer(data.length);
|
||||
var uint8Array = new Uint8Array(buffer);
|
||||
|
||||
for (var i = 0; i < data.length; i++) {
|
||||
uint8Array[i] = data.charCodeAt(i);
|
||||
}
|
||||
|
||||
PDFViewer.readPDF(uint8Array);
|
||||
};
|
||||
|
||||
// Read as a binary string since "readAsArrayBuffer" is not yet
|
||||
// implemented in Firefox.
|
||||
fileReader.readAsBinaryString(file);
|
||||
}
|
||||
};
|
||||
PDFViewer.fileInput.value = null;
|
||||
} else {
|
||||
document.getElementById('fileWrapper').style.display = 'none';
|
||||
}
|
||||
|
||||
PDFViewer.pageNumber =
|
||||
parseInt(PDFViewer.queryParams.page) || PDFViewer.pageNumber;
|
||||
PDFViewer.scale = parseInt(PDFViewer.scaleSelect.value) / 100 || 1.0;
|
||||
|
||||
PDFViewer.openURL(PDFViewer.queryParams.file || PDFViewer.url);
|
||||
|
||||
window.onscroll = function(evt) {
|
||||
var lastPagesDrawn = PDFViewer.lastPagesDrawn;
|
||||
var visiblePages = PDFViewer.visiblePages();
|
||||
|
||||
var pagesToDraw = [];
|
||||
var pagesToKeep = [];
|
||||
var pagesToRemove = [];
|
||||
|
||||
var i;
|
||||
|
||||
// Determine which visible pages were not previously drawn.
|
||||
for (i = 0; i < visiblePages.length; i++) {
|
||||
if (lastPagesDrawn.indexOf(visiblePages[i]) === -1) {
|
||||
pagesToDraw.push(visiblePages[i]);
|
||||
PDFViewer.drawPage(visiblePages[i]);
|
||||
} else {
|
||||
pagesToKeep.push(visiblePages[i]);
|
||||
}
|
||||
}
|
||||
|
||||
// Determine which previously drawn pages are no longer visible.
|
||||
for (i = 0; i < lastPagesDrawn.length; i++) {
|
||||
if (visiblePages.indexOf(lastPagesDrawn[i]) === -1) {
|
||||
pagesToRemove.push(lastPagesDrawn[i]);
|
||||
PDFViewer.removePage(lastPagesDrawn[i]);
|
||||
}
|
||||
}
|
||||
|
||||
PDFViewer.lastPagesDrawn = pagesToDraw.concat(pagesToKeep);
|
||||
|
||||
// Update the page number input with the current page number.
|
||||
if (!PDFViewer.willJumpToPage && visiblePages.length > 0) {
|
||||
PDFViewer.pageNumber = PDFViewer.pageNumberInput.value = visiblePages[0];
|
||||
PDFViewer.previousPageButton.disabled = (PDFViewer.pageNumber === 1);
|
||||
PDFViewer.nextPageButton.disabled = (PDFViewer.pageNumber === PDFViewer.numberOfPages);
|
||||
} else {
|
||||
PDFViewer.willJumpToPage = false;
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
window.addEventListener('pdfloaded', function(evt) {
|
||||
PDFViewer.readPDF(evt.detail);
|
||||
}, true);
|
||||
132
web/viewer.css
132
web/viewer.css
|
|
@ -2,35 +2,129 @@
|
|||
/* vim: set shiftwidth=4 tabstop=8 autoindent cindent expandtab: */
|
||||
|
||||
body {
|
||||
margin: 6px;
|
||||
padding: 0px;
|
||||
background-color: #c0bdb7;
|
||||
background-color: #929292;
|
||||
font-family: 'Lucida Grande', 'Lucida Sans Unicode', Helvetica, Arial, Verdana, sans-serif;
|
||||
margin: 0px;
|
||||
padding: 0px;
|
||||
}
|
||||
|
||||
/* === Toolbar === */
|
||||
#controls {
|
||||
position:fixed;
|
||||
left: 0px;
|
||||
top: 0px;
|
||||
width: 100%;
|
||||
padding: 7px;
|
||||
border-bottom: 1px solid black;
|
||||
background-color: rgb(242, 240, 238);
|
||||
background-color: #eee;
|
||||
background: -moz-linear-gradient(center bottom, #eee 0%, #fff 100%);
|
||||
background: -webkit-gradient(linear, left bottom, left top, color-stop(0.0, #ddd), color-stop(1.0, #fff));
|
||||
border-bottom: 1px solid #666;
|
||||
padding: 4px;
|
||||
position: fixed;
|
||||
left: 0px;
|
||||
top: 0px;
|
||||
height: 40px;
|
||||
width: 100%;
|
||||
}
|
||||
|
||||
span#info {
|
||||
float: right;
|
||||
font: 14px sans-serif;
|
||||
margin-right: 10px;
|
||||
.separator {
|
||||
display: inline;
|
||||
border-left: 1px solid #d3d3d3;
|
||||
border-right: 1px solid #fff;
|
||||
height: 32px;
|
||||
width:0px;
|
||||
margin: 4px;
|
||||
}
|
||||
|
||||
#viewer {
|
||||
#controls > button {
|
||||
line-height: 32px;
|
||||
}
|
||||
|
||||
#canvas {
|
||||
margin: auto;
|
||||
display: block;
|
||||
#controls > button[disabled] > img {
|
||||
opacity: 0.5;
|
||||
}
|
||||
|
||||
#pageNumber {
|
||||
text-align: right;
|
||||
text-align: right;
|
||||
}
|
||||
|
||||
#fileInput {
|
||||
line-height: 32px;
|
||||
}
|
||||
|
||||
span#info {
|
||||
display: none;
|
||||
}
|
||||
|
||||
@-moz-document regexp("http:.*debug=1.*") {
|
||||
span#info {
|
||||
display: inline-block;
|
||||
}
|
||||
}
|
||||
|
||||
/* === Sidebar === */
|
||||
#sidebar {
|
||||
position: fixed;
|
||||
width: 200px;
|
||||
top: 62px;
|
||||
bottom: 18px;
|
||||
left: -140px;
|
||||
transition: left 0.25s ease-in-out 1s;
|
||||
-moz-transition: left 0.25s ease-in-out 1s;
|
||||
-webkit-transition: left 0.25s ease-in-out 1s;
|
||||
}
|
||||
|
||||
#sidebar:hover {
|
||||
left: 0px;
|
||||
transition: left 0.25s ease-in-out 0s;
|
||||
-moz-transition: left 0.25s ease-in-out 0s;
|
||||
-webkit-transition: left 0.25s ease-in-out 0s;
|
||||
}
|
||||
|
||||
#sidebarBox {
|
||||
background-color: rgba(0, 0, 0, 0.7);
|
||||
width: 150px;
|
||||
height: 100%;
|
||||
border-top-right-radius: 8px;
|
||||
border-bottom-right-radius: 8px;
|
||||
-moz-border-radius-topright: 8px;
|
||||
-moz-border-radius-bottomright: 8px;
|
||||
-webkit-border-top-right-radius: 8px;
|
||||
-webkit-border-bottom-right-radius: 8px;
|
||||
box-shadow: 0px 2px 8px #000;
|
||||
-moz-box-shadow: 0px 2px 8px #000;
|
||||
-webkit-box-shadow: 0px 2px 8px #000;
|
||||
}
|
||||
|
||||
#sidebarScrollView {
|
||||
position: absolute;
|
||||
overflow: hidden;
|
||||
overflow-y: auto;
|
||||
top: 10px;
|
||||
bottom: 10px;
|
||||
left: 10px;
|
||||
width: 130px;
|
||||
}
|
||||
|
||||
.thumbnail {
|
||||
width: 104px;
|
||||
height: 134px;
|
||||
background-color: white;
|
||||
margin: 5px;
|
||||
}
|
||||
|
||||
/* === Content view === */
|
||||
canvas {
|
||||
margin: auto;
|
||||
display: block;
|
||||
box-shadow: 0px 4px 10px #000;
|
||||
-moz-box-shadow: 0px 4px 10px #000;
|
||||
-webkit-box-shadow: 0px 4px 10px #000;
|
||||
}
|
||||
|
||||
.page {
|
||||
width: 816px;
|
||||
height: 1056px;
|
||||
margin: 10px auto;
|
||||
}
|
||||
|
||||
#viewer {
|
||||
margin: 44px 0px 0px;
|
||||
padding: 8px 0px;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -12,22 +12,54 @@
|
|||
<script type="text/javascript" src="../glyphlist.js"></script>
|
||||
</head>
|
||||
|
||||
<body onload="load();">
|
||||
<body>
|
||||
<div id="controls">
|
||||
<input type="file" style="float: right; margin: auto 32px;" onChange="load(this.value.toString());"></input>
|
||||
<!-- This only opens supported PDFs from the source path...
|
||||
-- Can we use JSONP to overcome the same-origin restrictions? -->
|
||||
<button onclick="prevPage();">Previous</button>
|
||||
<button onclick="nextPage();">Next</button>
|
||||
<input type="text" id="pageNumber" onchange="gotoPage(this.value);"
|
||||
value="1" size="4"></input>
|
||||
<button id="previous" onclick="PDFView.page--;">
|
||||
<img src="images/go-up.svg" align="top" height="32"/>
|
||||
Previous
|
||||
</button>
|
||||
|
||||
<button id="next" onclick="PDFView.page++;">
|
||||
<img src="images/go-down.svg" align="top" height="32"/>
|
||||
Next
|
||||
</button>
|
||||
|
||||
<div class="separator"></div>
|
||||
|
||||
<input type="text" id="pageNumber" onchange="PDFView.page = this.value;" value="1" size="4"></input>
|
||||
|
||||
<span>/</span>
|
||||
<span id="numPages">--</span>
|
||||
<span id="info"></span>
|
||||
|
||||
<div class="separator"></div>
|
||||
|
||||
<select id="scaleSelect" onchange="PDFView.scale = parseInt(this.value);">
|
||||
<option value="50">50%</option>
|
||||
<option value="75">75%</option>
|
||||
<option value="100">100%</option>
|
||||
<option value="125">125%</option>
|
||||
<option value="150" selected="selected"><p>150%</p></option>
|
||||
<option value="200">200%</option>
|
||||
</select>
|
||||
|
||||
<div class="separator"></div>
|
||||
|
||||
<input id="fileInput" type="file"></input>
|
||||
|
||||
<div class="separator"></div>
|
||||
|
||||
<span id="info">--</span>
|
||||
</div>
|
||||
|
||||
<div id="viewer">
|
||||
<canvas id="canvas"></canvas>
|
||||
<div id="sidebar">
|
||||
<div id="sidebarBox">
|
||||
<div id="sidebarScrollView">
|
||||
<div id="sidebarView"></div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div id="viewer"></div>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
|
|
|
|||
368
web/viewer.js
368
web/viewer.js
|
|
@ -3,108 +3,298 @@
|
|||
|
||||
'use strict';
|
||||
|
||||
var pdfDocument, canvas, pageScale, pageDisplay, pageNum, numPages;
|
||||
function load(userInput) {
|
||||
canvas = document.getElementById('canvas');
|
||||
canvas.mozOpaque = true;
|
||||
pageNum = ('page' in queryParams()) ? parseInt(queryParams().page) : 1;
|
||||
pageScale = ('scale' in queryParams()) ? parseInt(queryParams().scale) : 1.5;
|
||||
var fileName = userInput;
|
||||
if (!userInput) {
|
||||
fileName = queryParams().file || 'compressed.tracemonkey-pldi-09.pdf';
|
||||
}
|
||||
open(fileName);
|
||||
}
|
||||
var kDefaultURL = 'compressed.tracemonkey-pldi-09.pdf';
|
||||
var kDefaultScale = 150;
|
||||
|
||||
function queryParams() {
|
||||
var qs = window.location.search.substring(1);
|
||||
var kvs = qs.split('&');
|
||||
var params = { };
|
||||
for (var i = 0; i < kvs.length; ++i) {
|
||||
var kv = kvs[i].split('=');
|
||||
params[unescape(kv[0])] = unescape(kv[1]);
|
||||
}
|
||||
return params;
|
||||
}
|
||||
var PDFView = {
|
||||
pages: [],
|
||||
thumbnails: [],
|
||||
|
||||
function open(url) {
|
||||
document.title = url;
|
||||
if (url.indexOf("http") == 0)
|
||||
return;
|
||||
|
||||
var req = new XMLHttpRequest();
|
||||
req.open('GET', url);
|
||||
req.mozResponseType = req.responseType = 'arraybuffer';
|
||||
req.expected = (document.URL.indexOf('file:') == 0) ? 0 : 200;
|
||||
req.onreadystatechange = function() {
|
||||
if (req.readyState == 4 && req.status == req.expected) {
|
||||
var data = (req.mozResponseArrayBuffer || req.mozResponse ||
|
||||
req.responseArrayBuffer || req.response);
|
||||
loadDocument(data);
|
||||
set scale(val) {
|
||||
var options = document.getElementById('scaleSelect').options;
|
||||
for (var i = 0; i < options.length; i++) {
|
||||
var option = options[i];
|
||||
option.selected = (option.value == val);
|
||||
}
|
||||
};
|
||||
req.send(null);
|
||||
}
|
||||
|
||||
window.addEventListener("pdfloaded", function(aEvent) {
|
||||
loadDocument(aEvent.detail);
|
||||
var pages = this.pages;
|
||||
var cssUnits = 96.0 / 72.0;
|
||||
for (var i = 0; i < pages.length; i++)
|
||||
pages[i].update(val / 100 * cssUnits);
|
||||
|
||||
// Jump the scroll position to the correct page.
|
||||
this.page = this.page;
|
||||
},
|
||||
|
||||
set page(val) {
|
||||
var pages = this.pages;
|
||||
var input = document.getElementById("pageNumber");
|
||||
if (val <= 0 || val > pages.length) {
|
||||
input.value = this.page;
|
||||
return;
|
||||
}
|
||||
|
||||
document.location.hash = val;
|
||||
document.getElementById("previous").disabled = (val == 1);
|
||||
document.getElementById("next").disabled = (val == pages.length);
|
||||
if (input.value == val)
|
||||
return;
|
||||
|
||||
input.value = val;
|
||||
pages[val - 1].draw();
|
||||
},
|
||||
|
||||
get page() {
|
||||
return parseInt(document.location.hash.substring(1)) || 1;
|
||||
},
|
||||
|
||||
open: function(url, scale) {
|
||||
if (url.indexOf("http") == 0)
|
||||
return;
|
||||
|
||||
document.title = url;
|
||||
|
||||
var xhr = new XMLHttpRequest();
|
||||
xhr.open('GET', url);
|
||||
xhr.mozResponseType = xhr.responseType = 'arraybuffer';
|
||||
xhr.expected = (document.URL.indexOf('file:') === 0) ? 0 : 200;
|
||||
|
||||
xhr.onreadystatechange = function() {
|
||||
if (xhr.readyState === 4 && xhr.status === xhr.expected) {
|
||||
var data = (xhr.mozResponseArrayBuffer || xhr.mozResponse ||
|
||||
xhr.responseArrayBuffer || xhr.response);
|
||||
|
||||
PDFView.load(data, scale);
|
||||
}
|
||||
};
|
||||
|
||||
xhr.send(null);
|
||||
},
|
||||
|
||||
load: function(data, scale) {
|
||||
var sidebar = document.getElementById('sidebarView');
|
||||
sidebar.parentNode.scrollTop = 0;
|
||||
|
||||
while (sidebar.hasChildNodes())
|
||||
sidebar.removeChild(sidebar.lastChild);
|
||||
clearInterval(sidebar._loadingInterval);
|
||||
|
||||
var container = document.getElementById('viewer');
|
||||
while (container.hasChildNodes())
|
||||
container.removeChild(container.lastChild);
|
||||
|
||||
var pdf = new PDFDoc(new Stream(data));
|
||||
var pagesCount = pdf.numPages;
|
||||
document.getElementById('numPages').innerHTML = pagesCount;
|
||||
|
||||
var pages = this.pages = [];
|
||||
var thumbnails = this.thumbnails = [];
|
||||
for (var i = 1; i <= pagesCount; i++) {
|
||||
var page = pdf.getPage(i);
|
||||
var mediaBox = page.mediaBox;
|
||||
var width = (mediaBox[2] - mediaBox[0]);
|
||||
var height = (mediaBox[3] - mediaBox[1]);
|
||||
pages.push(new PageView(container, page, i, width, height, page.stats));
|
||||
thumbnails.push(new ThumbnailView(sidebar, pages[i - 1]));
|
||||
};
|
||||
|
||||
this.scale = (scale || kDefaultScale);
|
||||
this.page = parseInt(document.location.hash.substring(1)) || 1;
|
||||
},
|
||||
|
||||
getVisiblePages: function() {
|
||||
var pages = this.pages;
|
||||
var kBottomMargin = 10;
|
||||
var visiblePages = [];
|
||||
|
||||
var currentHeight = kBottomMargin;
|
||||
var windowTop = window.pageYOffset;
|
||||
for (var i = 1; i <= pages.length; i++) {
|
||||
var page = pages[i - 1];
|
||||
var pageHeight = page.height * page.scale + kBottomMargin;
|
||||
if (currentHeight + pageHeight > windowTop)
|
||||
break;
|
||||
|
||||
currentHeight += pageHeight;
|
||||
}
|
||||
|
||||
var windowBottom = window.pageYOffset + window.innerHeight;
|
||||
for (; i <= pages.length && currentHeight < windowBottom; i++) {
|
||||
var page = pages[i - 1];
|
||||
visiblePages.push({ id: page.id, y: currentHeight });
|
||||
currentHeight += page.height * page.scale + kBottomMargin;
|
||||
}
|
||||
|
||||
return visiblePages;
|
||||
},
|
||||
};
|
||||
|
||||
var PageView = function(container, content, id, width, height, stats) {
|
||||
this.width = width;
|
||||
this.height = height;
|
||||
this.id = id;
|
||||
this.content = content;
|
||||
|
||||
var anchor = document.createElement('a');
|
||||
anchor.name = '' + this.id;
|
||||
|
||||
var div = document.createElement('div');
|
||||
div.id = 'pageContainer' + this.id;
|
||||
div.className = 'page';
|
||||
|
||||
container.appendChild(anchor);
|
||||
container.appendChild(div);
|
||||
|
||||
this.update = function(scale) {
|
||||
this.scale = scale;
|
||||
div.style.width = (this.width * this.scale)+ 'px';
|
||||
div.style.height = (this.height * this.scale) + 'px';
|
||||
|
||||
while (div.hasChildNodes())
|
||||
div.removeChild(div.lastChild);
|
||||
};
|
||||
|
||||
this.draw = function() {
|
||||
if (div.hasChildNodes()) {
|
||||
this.updateStats();
|
||||
return;
|
||||
}
|
||||
|
||||
var canvas = document.createElement('canvas');
|
||||
canvas.id = 'page' + this.id;
|
||||
canvas.mozOpaque = true;
|
||||
|
||||
canvas.width = this.width * this.scale;
|
||||
canvas.height = this.height * this.scale;
|
||||
div.appendChild(canvas);
|
||||
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.save();
|
||||
ctx.fillStyle = 'rgb(255, 255, 255)';
|
||||
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
||||
ctx.restore();
|
||||
|
||||
stats.begin = Date.now();
|
||||
this.content.startRendering(ctx, this.updateStats);
|
||||
};
|
||||
|
||||
this.updateStats = function() {
|
||||
var t1 = stats.compile, t2 = stats.fonts, t3 = stats.render;
|
||||
var str = 'Time to compile/fonts/render: ' +
|
||||
(t1 - stats.begin) + '/' + (t2 - t1) + '/' + (t3 - t2) + ' ms';
|
||||
document.getElementById('info').innerHTML = str;
|
||||
};
|
||||
};
|
||||
|
||||
var ThumbnailView = function(container, page) {
|
||||
var anchor = document.createElement('a');
|
||||
anchor.href = '#' + page.id;
|
||||
|
||||
var div = document.createElement('div');
|
||||
div.id = 'thumbnailContainer' + page.id;
|
||||
div.className = 'thumbnail';
|
||||
|
||||
anchor.appendChild(div);
|
||||
container.appendChild(anchor);
|
||||
|
||||
this.draw = function() {
|
||||
if (div.hasChildNodes())
|
||||
return;
|
||||
|
||||
var canvas = document.createElement('canvas');
|
||||
canvas.id = 'thumbnail' + page.id;
|
||||
canvas.mozOpaque = true;
|
||||
|
||||
canvas.width = 104;
|
||||
canvas.height = 134;
|
||||
div.appendChild(canvas);
|
||||
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.save();
|
||||
ctx.fillStyle = 'rgb(255, 255, 255)';
|
||||
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
||||
ctx.restore();
|
||||
|
||||
page.content.startRendering(ctx, function() { });
|
||||
};
|
||||
};
|
||||
|
||||
window.addEventListener('load', function(evt) {
|
||||
var params = document.location.search.substring(1).split('&');
|
||||
for (var i = 0; i < params.length; i++) {
|
||||
var param = params[i].split('=');
|
||||
params[unescape(param[0])] = unescape(param[1]);
|
||||
}
|
||||
|
||||
PDFView.open(params.file || kDefaultURL, parseInt(params.scale));
|
||||
|
||||
if (!window.File || !window.FileReader || !window.FileList || !window.Blob)
|
||||
document.getElementById('fileInput').style.display = 'none';
|
||||
else
|
||||
document.getElementById('fileInput').value = null;
|
||||
}, true);
|
||||
|
||||
function loadDocument(data) {
|
||||
pdfDocument = new PDFDoc(new Stream(data));
|
||||
numPages = pdfDocument.numPages;
|
||||
document.getElementById('numPages').innerHTML = numPages.toString();
|
||||
goToPage(pageNum);
|
||||
}
|
||||
window.addEventListener('pdfloaded', function(evt) {
|
||||
PDFView.load(evt.detail);
|
||||
}, true);
|
||||
|
||||
function gotoPage(num) {
|
||||
if (0 <= num && num <= numPages)
|
||||
pageNum = num;
|
||||
displayPage(pageNum);
|
||||
}
|
||||
window.addEventListener('scroll', function(evt) {
|
||||
var visiblePages = PDFView.getVisiblePages();
|
||||
for (var i = 0; i < visiblePages.length; i++)
|
||||
PDFView.pages[visiblePages[i].id - 1].draw();
|
||||
|
||||
function displayPage(num) {
|
||||
document.getElementById('pageNumber').value = num;
|
||||
if (!visiblePages.length)
|
||||
return;
|
||||
|
||||
var t0 = Date.now();
|
||||
var currentId = PDFView.page;
|
||||
var firstPage = visiblePages[0];
|
||||
var lastPage = visiblePages[visiblePages.length - 1];
|
||||
if (currentId > lastPage.id && lastPage.y > window.pageYOffset)
|
||||
PDFView.page = lastPage.id;
|
||||
else if (currentId < firstPage.id)
|
||||
PDFView.page = firstPage.id;
|
||||
}, true);
|
||||
|
||||
var page = pdfDocument.getPage(pageNum = num);
|
||||
window.addEventListener("hashchange", function(evt) {
|
||||
PDFView.page = PDFView.page;
|
||||
});
|
||||
|
||||
var pdfToCssUnitsCoef = 96.0 / 72.0;
|
||||
var pageWidth = (page.mediaBox[2] - page.mediaBox[0]);
|
||||
var pageHeight = (page.mediaBox[3] - page.mediaBox[1]);
|
||||
canvas.width = pageScale * pageWidth * pdfToCssUnitsCoef;
|
||||
canvas.height = pageScale * pageHeight * pdfToCssUnitsCoef;
|
||||
window.addEventListener("change", function(evt) {
|
||||
var files = evt.target.files;
|
||||
if (!files || files.length == 0)
|
||||
return;
|
||||
|
||||
var t1 = Date.now();
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.save();
|
||||
ctx.fillStyle = 'rgb(255, 255, 255)';
|
||||
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
||||
ctx.restore();
|
||||
// Read the local file into a Uint8Array.
|
||||
var fileReader = new FileReader();
|
||||
fileReader.onload = function(evt) {
|
||||
var data = evt.target.result;
|
||||
var buffer = new ArrayBuffer(data.length);
|
||||
var uint8Array = new Uint8Array(buffer);
|
||||
|
||||
page.startRendering(
|
||||
ctx,
|
||||
function() {
|
||||
var infoDisplay = document.getElementById('info');
|
||||
var stats = page.stats;
|
||||
var t2 = stats.compile, t3 = stats.fonts, t4 = stats.render;
|
||||
infoDisplay.innerHTML = 'Time to load/compile/fonts/render: ' +
|
||||
(t1 - t0) + '/' + (t2 - t1) + '/' + (t3 - t2) + '/' + (t4 - t3) + ' ms';
|
||||
});
|
||||
}
|
||||
for (var i = 0; i < data.length; i++)
|
||||
uint8Array[i] = data.charCodeAt(i);
|
||||
PDFView.load(uint8Array);
|
||||
};
|
||||
|
||||
function nextPage() {
|
||||
if (pageNum < pdfDocument.numPages)
|
||||
displayPage(++pageNum);
|
||||
}
|
||||
// Read as a binary string since "readAsArrayBuffer" is not yet
|
||||
// implemented in Firefox.
|
||||
var file = files[0];
|
||||
fileReader.readAsBinaryString(file);
|
||||
|
||||
function prevPage() {
|
||||
if (pageNum > 1)
|
||||
displayPage(--pageNum);
|
||||
}
|
||||
document.title = file.name;
|
||||
document.location.hash = 1;
|
||||
}, true);
|
||||
|
||||
window.addEventListener("transitionend", function(evt) {
|
||||
var pageIndex = 0;
|
||||
var pagesCount = PDFView.pages.length;
|
||||
|
||||
var container = document.getElementById('sidebarView');
|
||||
container._interval = window.setInterval(function() {
|
||||
if (pageIndex >= pagesCount)
|
||||
return window.clearInterval(container._interval);
|
||||
|
||||
PDFView.thumbnails[pageIndex++].draw();
|
||||
}, 500);
|
||||
}, true);
|
||||
|
||||
function goToPage(num) {
|
||||
if (0 <= num && num <= numPages)
|
||||
displayPage(pageNum = num);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue