DenysMedvid/pdf2htmlEX
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fix js for optimization

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This commit is contained in:
Lu Wang 2013-10-20 16:35:31 +08:00
parent c2187ec685
commit 297c902c68
3 changed files with 38 additions and 15 deletions
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7
CMakeLists.txt
View File

@ -231,7 +231,12 @@ target_link_libraries(pdf2htmlEX ${PDF2HTMLEX_LIBS})
add_custom_target(pdf2htmlEX.js ALL DEPENDS ${CMAKE_SOURCE_DIR}/share/pdf2htmlEX.js)
add_custom_command(OUTPUT ${CMAKE_SOURCE_DIR}/share/pdf2htmlEX.js
COMMAND ${CMAKE_SOURCE_DIR}/share/js_src/compile.sh)
COMMAND ${CMAKE_SOURCE_DIR}/share/js_src/compile.sh
DEPENDS
${CMAKE_SOURCE_DIR}/share/js_src/css_class_names.js
${CMAKE_SOURCE_DIR}/share/js_src/header.js
${CMAKE_SOURCE_DIR}/share/js_src/viewer.js
)
install (TARGETS pdf2htmlEX DESTINATION bin)
file (GLOB datafiles

2
share/js_src/compile.sh
View File

@ -9,7 +9,7 @@
BASEDIR=$(dirname $0)
OUTPUT="$BASEDIR/../pdf2htmlEX.js"
(echo 'Compiling pdf2htmlEX.js with closure-compiler...' && \
(echo 'Building pdf2htmlEX.js with closure-compiler...' && \
tmpfile=$(mktemp 2>/dev/null) && \
java -jar "$BASEDIR/../../3rdparty/closure-compiler/compiler.jar" --compilation_level ADVANCED_OPTIMIZATIONS --process_jquery_primitives --externs "$BASEDIR/../jquery.js" --js "$BASEDIR/css_class_names.js" --js "$BASEDIR/viewer.js" > "$tmpfile" 2>/dev/null && \
cat "$BASEDIR/header.js" "$tmpfile" > "$OUTPUT" && \

44
share/js_src/viewer.js
View File

@ -11,6 +11,25 @@
* css_class_names.js
*/
/*
* Attention:
* This files is to be optimized by closure-compiler,
* so pay attention to the forms of property names:
*
* string/bracket form is safe, won't be optimized:
* var obj={ 'a':'b' }; obj['a'] = 'b';
* name/dot form will be optimized, the name is likely to be modified:
* var obj={ a:'b' }; obj.a = 'b';
*
* Either form can be used for internal objects,
* but must be consistent for each one respectively.
*
* string/bracket form must be used for external objects
* e.g. DEFAULT_CONFIG, object stored in page-data
* property names are part of the `protocol` in these cases.
*
*/
'use strict';
/* The namespace */
@ -26,7 +45,7 @@
// id of the element for outline
'outline_id' : 'outline',
// class for the loading indicator
'loading_indicator_cls' : 'loading_indicator_cls',
'loading_indicator_cls' : 'loading-indicator',
// How many page shall we preload that are below the last visible page
'preload_pages' : 3,
// Smooth zoom is enabled when the number of pages shown is less than the threshold
@ -66,8 +85,8 @@
this.$container = $(container);
this.n = parseInt(this.$p.data('page-no'), 16);
this.$b = $('.'+CSS_CLASS_NAMES['page_content_box'], this.$p);
this.$d = this.$p.parent('.'+CSS_CLASS_NAMES['page_decoration']);
this.$b = $('.'+CSS_CLASS_NAMES.page_content_box, this.$p);
this.$d = this.$p.parent('.'+CSS_CLASS_NAMES.page_decoration);
// page size
// Need to make rescale work when page_content_box is not loaded, yet
@ -84,10 +103,9 @@
* cur_r : currently using
*/
this.default_r = this.set_r = this.cur_r = this.h / this.$b.height();
this.page_data = $($('.'+CSS_CLASS_NAMES.page_data, this.$p)[0]).data('data');
this.data = $($('.'+CSS_CLASS_NAMES['page_data'], this.$p)[0]).data('data');
this.ctm = this.data.ctm;
this.ctm = this.page_data['ctm'];
this.ictm = invert(this.ctm);
this.loaded = true;
@ -187,14 +205,14 @@
//this.register_key_handler();
// handle links
this.$container.add(this.$outline).on('click', '.'+CSS_CLASS_NAMES['link'], this, this.link_handler);
this.$container.add(this.$outline).on('click', '.'+CSS_CLASS_NAMES.link, this, this.link_handler);
this.render();
},
find_pages : function() {
var new_pages = new Array();
var $pl= $('.'+CSS_CLASS_NAMES['page_frame'], this.$container);
var $pl= $('.'+CSS_CLASS_NAMES.page_frame, this.$container);
/* don't use for(..in..) since $pl is more than an Array */
for(var i = 0, l = $pl.length; i < l; ++i) {
var p = new Page($pl[i], this.$container);
@ -214,7 +232,7 @@
return; // Page is already loading
var page_no_hex = idx.toString(16);
var $pf = this.$container.find('#' + CSS_CLASS_NAMES['page_frame'] + page_no_hex);
var $pf = this.$container.find('#' + CSS_CLASS_NAMES.page_frame + page_no_hex);
if($pf.length == 0)
return; // Page does not exist
@ -234,14 +252,14 @@
// the loading indicator on this page should also be destroyed
_.pages[idx].$d.replaceWith(data);
var $new_pf = _.$container.find('#' + CSS_CLASS_NAMES['page_frame'] + page_no_hex);
var $new_pf = _.$container.find('#' + CSS_CLASS_NAMES.page_frame + page_no_hex);
_.pages[idx] = new Page($new_pf, _.$container);
_.pages[idx].hide();
_.pages[idx].rescale(_.scale);
_.schedule_render();
// disable background image dragging
$new_pf.find('.'+CSS_CLASS_NAMES['background_image']).on('dragstart', function(e){return false;});
$new_pf.find('.'+CSS_CLASS_NAMES.background_image).on('dragstart', function(e){return false;});
// Reset loading token
delete _.pages_loading[idx];
@ -267,7 +285,7 @@
pre_hide_pages : function() {
/* pages might have not been loaded yet, so add a CSS rule */
var s = '@media screen{.'+CSS_CLASS_NAMES['page_content_box']+'{display:none;}}';
var s = '@media screen{.'+CSS_CLASS_NAMES.page_content_box+'{display:none;}}';
var n = document.createElement('style');
n.type = 'text/css';
if (n.styleSheet) {
@ -513,7 +531,7 @@
get_containing_page : function(obj) {
/* get the page obj containing obj */
var p = obj.closest('.'+CSS_CLASS_NAMES['page_frame'])[0];
var p = obj.closest('.'+CSS_CLASS_NAMES.page_frame)[0];
return p && this.pages[(new Page(p)).n];
},