DenysMedvid/pdf2htmlEX
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fix js

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This commit is contained in:
Lu Wang 2013-10-28 16:29:58 +08:00
parent 7787b26e5b
commit cc79880d57
2 changed files with 15 additions and 11 deletions
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1
TODO
View File

@ -1,3 +1,4 @@
page idx vs no
move $container outside Page
tracking current page
more js annoatation

25
share/js_src/pdf2htmlEX.js.in
View File

@ -193,7 +193,7 @@
*/
function Viewer(config) {
/* do nothing if jQuery is not ready */
if(!window.jQuery) return;
if(!jQuery) return;
this.config = $.extend({}, DEFAULT_CONFIG, config);
this.pages_loading = [];
@ -248,24 +248,25 @@
/* 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);
new_page_map[p.n] = i;
new_pages.push(p);
new_page_map[p.n] = p;
}
this.pages = new_pages;
this.page_map = new_page_map;
},
load_page : function(idx, pages_to_preload, successCallback, errorCallback) {
if (idx >= this.pages.length)
var pages = this.pages;
if (idx >= pages.length)
return; // Page does not exist
if (this.pages[idx].loaded)
if (pages[idx].loaded)
return; // Page is loaded
if (this.pages_loading[idx])
return; // Page is already loading
var page_no_hex = idx.toString(16);
var page_no_hex = pages[idx].n.toString(16);
var $pf = this.$container.find('#' + CSS_CLASS_NAMES.page_frame + page_no_hex);
if($pf.length == 0)
return; // Page does not exist
@ -298,7 +299,7 @@
// Reset loading token
delete _.pages_loading[idx];
if (successCallback) successCallback();
if (successCallback) successCallback(_.pages[idx]);
}
).fail(function(jqXHR, textStatus, errorThrown){
// Reset loading token
@ -337,13 +338,14 @@
render : function () {
/* hide (positional) invisible pages */
var pl = this.pages;
var pm = this.page_map;
for(var i = 0, l = pl.length; i < l; ++i) {
var p = pl[i];
if(p.is_nearly_visible()){
if (p.loaded) {
p.show();
} else
this.load_page(p.n);
this.load_page(pm[p.n]);
} else {
p.hide();
}
@ -470,7 +472,8 @@
// Immediate rendering optimizations enabled to improve reactiveness while zooming
// Find out which pages are visible
var min_visible, max_visible;
min_visible = max_visible = active_page.n;
// TODO: page index
min_visible = max_visible = this.page_map[active_page.n];
while (pl[min_visible] && pl[min_visible].is_visible()) { --min_visible; }
++ min_visible;
while (pl[max_visible] && pl[max_visible].is_visible()) { ++max_visible; }
@ -515,7 +518,7 @@
if(!active_page) return;
this.rescale(this.$container.width() / active_page.w, false);
this.scroll_to(active_page.n, [0,0]);
this.scroll_to(this.page_map[active_page.n], [0,0]);
},
fit_height : function () {
@ -523,7 +526,7 @@
if(!active_page) return;
this.rescale(this.$container.height() / active_page.h, false);
this.scroll_to(active_page.n, [0,0]);
this.scroll_to(this.page_map[active_page.n], [0,0]);
},
get_active_page : function () {
@ -629,7 +632,7 @@
transform_and_scroll(target_page);
} else {
// Scroll to the exact position once loaded.
_.load_page(target_page.n, undefined, transform_and_scroll);
_.load_page(target_page_idx, undefined, transform_and_scroll);
// In the meantime page gets loaded, scroll approximately position for maximum responsiveness.
_.scroll_to(target_page_idx, [0,0]);