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relaxing dependency on jQuery

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Lu Wang 2013-11-06 16:33:15 +08:00
parent 4fec92efba
commit 515f496cce
7 changed files with 367 additions and 54 deletions
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178
3rdparty/PDF.js/LICENSE vendored Normal file
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@ -0,0 +1,178 @@
Apache License
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http://www.apache.org/licenses/
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23
3rdparty/PDF.js/build.sh vendored Executable file
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@ -0,0 +1,23 @@
#!/bin/sh
# Compile and optimize JS code
# Copyright 2013 Lu Wang <coolwanglu@gmail.com>
BASEDIR=$(dirname $0)
CLOSURE_COMPILER_DIR="$BASEDIR/../closure-compiler"
CLOSURE_COMPILER_JAR="$CLOSURE_COMPILER_DIR/compiler.jar"
INPUT="$BASEDIR/compatibility.js"
OUTPUT_FN="compatibility.min.js"
OUTPUT="$BASEDIR/$OUTPUT_FN"
(echo "Building $OUTPUT_FN with closure-compiler..." && \
java -jar "$CLOSURE_COMPILER_JAR" \
--compilation_level ADVANCED_OPTIMIZATIONS \
--warning_level VERBOSE \
--js "$INPUT" \
--js_output_file "$OUTPUT" && \
echo 'Done.') || \
(echo 'Failed. Read `3rdparty/closure-compiler/README` for more detail.' && \
echo 'Using the uncompressed version.' && \
cat "$INPUT" > "$OUTPUT")

77
3rdparty/PDF.js/compatibility.js vendored Normal file
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@ -0,0 +1,77 @@
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* Copyright 2012 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/** @license Copyright 2012 Mozilla Foundation * Apachine License Version 2.0 */
'use strict';
// HTMLElement classList property
(function checkClassListProperty() {
var div = document.createElement('div');
if ('classList' in div)
return; // classList property exists
function changeList(element, itemName, add, remove) {
var s = element.className || '';
var list = s.split(/\s+/g);
if (list[0] === '') list.shift();
var index = list.indexOf(itemName);
if (index < 0 && add)
list.push(itemName);
if (index >= 0 && remove)
list.splice(index, 1);
element.className = list.join(' ');
return (index >= 0);
}
var classListPrototype = {
add: function(name) {
changeList(this.element, name, true, false);
},
contains: function(name) {
return changeList(this.element, name, false, false);
},
remove: function(name) {
changeList(this.element, name, false, true);
},
toggle: function(name) {
changeList(this.element, name, true, true);
}
};
Object.defineProperty(HTMLElement.prototype, 'classList', {
get: function() {
if (this._classList)
return this._classList;
var classList = Object.create(classListPrototype, {
element: {
value: this,
writable: false,
enumerable: true
}
});
Object.defineProperty(this, '_classList', {
value: classList,
writable: false,
enumerable: false
});
return classList;
},
enumerable: true
});
})();

4
3rdparty/PDF.js/compatibility.min.js vendored Normal file
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@ -0,0 +1,4 @@
/*
Copyright 2012 Mozilla Foundation * Apachine License Version 2.0 */
(function(){function b(a,b,e,f){var c=(a.className||"").split(/\s+/g);""===c[0]&&c.shift();var d=c.indexOf(b);0>d&&e&&c.push(b);0<=d&&f&&c.splice(d,1);a.className=c.join(" ");return 0<=d}if(!("classList"in document.createElement("div"))){var e={add:function(a){b(this.element,a,!0,!1)},contains:function(a){return b(this.element,a,!1,!1)},remove:function(a){b(this.element,a,!1,!0)},toggle:function(a){b(this.element,a,!0,!0)}};Object.defineProperty(HTMLElement.prototype,"classList",{get:function(){if(this.a)return this.a;
var a=Object.create(e,{element:{value:this,writable:!1,enumerable:!0}});Object.defineProperty(this,"_classList",{value:a,writable:!1,enumerable:!1});return a},enumerable:!0})}})();

1
CMakeLists.txt
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@ -254,6 +254,7 @@ install (TARGETS pdf2htmlEX DESTINATION bin)
set(PDF2HTMLEX_RESOURCE
${CMAKE_SOURCE_DIR}/3rdparty/jQuery/jquery-1.9.1.min.js
${CMAKE_SOURCE_DIR}/3rdparty/PDF.js/compatibility.min.js
${CMAKE_SOURCE_DIR}/share/base.css
${CMAKE_SOURCE_DIR}/share/fancy.css
${CMAKE_SOURCE_DIR}/share/LICENSE

4
share/manifest
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@ -47,6 +47,10 @@ $css
# <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
@jquery-1.9.1.min.js
# compatibility.min.js, extracted from PDF.js
# To support old browsers like IE9
@compatibility.min.js
# entry point of pdf2htmlEX.Viewer
# You can override default configuration by passing an object to the constructor of Viewer
# Refer to DEFAULT_CONFIG in viewer.js for possible keys

130
share/pdf2htmlEX.js.in
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@ -32,8 +32,7 @@
'use strict';
/* The namespace */
(function(pdf2htmlEX){
(function(pdf2htmlEX, document){
/**
* @const
* @struct
@ -75,6 +74,8 @@
/** @const */
var EPS = 1e-6;
/************************************/
/* utility function */
function invert(ctm) {
var det = ctm[0] * ctm[3] - ctm[1] * ctm[2];
return [ ctm[3] / det
@ -89,8 +90,11 @@
return [ctm[0] * pos[0] + ctm[2] * pos[1] + ctm[4]
,ctm[1] * pos[0] + ctm[3] * pos[1] + ctm[5]];
};
/**
* @constructor
* @param{Element} page The element for the page
* @struct
*/
function Page(page) {
@ -100,18 +104,18 @@
this.shown = false;
this.p = page; // page frame element
var $p = $(page);
this.n = parseInt($p.data('page-no'), 16);
// content box
this.$b = $p.children('.'+CSS_CLASS_NAMES.page_content_box);
this.n = parseInt(page.getAttribute('data-page-no'), 16);
// page size
// Need to make rescale work when page_content_box is not loaded, yet
this.original_height = this.p.clientHeight;
this.original_width = this.p.clientWidth;
// content box
var content_box = page.querySelector('.'+CSS_CLASS_NAMES.page_content_box);
// if page is loaded
if (this.$b.length > 0) {
if (content_box) {
this.content_box = content_box;
/*
* scale ratios
*
@ -119,8 +123,8 @@
* set_r : last set
* cur_r : currently using
*/
this.default_r = this.set_r = this.cur_r = this.original_height / this.$b.height();
this.page_data = $($p.children('.'+CSS_CLASS_NAMES.page_data)[0]).data('data');
this.default_r = this.set_r = this.cur_r = this.original_height / content_box.clientHeight;
this.page_data = JSON.parse(page.querySelector('.'+CSS_CLASS_NAMES.page_data).getAttribute('data-data'));
this.ctm = this.page_data['ctm'];
this.ictm = invert(this.ctm);
@ -131,13 +135,15 @@
$.extend(Page.prototype, /** @lends {Page.prototype} */ {
/* hide & show are for contents, the page frame is still there */
hide : function(){
this.$b.removeClass('opened');
if(this.loaded) {
this.content_box.classList.remove('opened');
this.shown = false;
}
},
show : function(){
if (this.loaded) {
if (! this.shown) {
this.$b.addClass('opened');
this.content_box.classList.add('opened');
this.shown = true;
}
}
@ -151,7 +157,9 @@
if(Math.abs(this.set_r - this.cur_r) > EPS) {
this.cur_r = this.set_r;
this.$b.css('transform', 'scale('+this.cur_r.toFixed(3)+')');
var s = this.content_box.style;
s.msTransform = s.webkitTransform = s.transform = 'scale('+this.cur_r.toFixed(3)+')';
}
var s = this.p.style;
@ -218,14 +226,14 @@
},
init_after_loading_content : function() {
this.$sidebar = $('#'+this.config['sidebar_id']);
this.$outline = $('#'+this.config['outline_id']);
this.$container = $('#'+this.config['container_id']);
this.$sidebar = $(document.getElementById(this.config['sidebar_id']));
this.$outline = $(document.getElementById(this.config['outline_id']));
this.container = document.getElementById(this.config['container_id']);
this.$loading_indicator = $('.'+this.config['loading_indicator_cls']);
// Open the outline if nonempty
if(this.$outline.children().length > 0) {
this.$sidebar.addClass('opened');
this.$sidebar[0].classList.add('opened');
}
this.find_pages();
@ -233,13 +241,13 @@
// register schedule rendering
// renew old schedules since scroll() may be called frequently
var _ = this;
this.$container.scroll(function(){ _.schedule_render(true); });
$(this.container).scroll(function(){ _.schedule_render(true); });
if(this.config['register_key_handler'])
this.register_key_handler();
// handle links
this.$container.add(this.$outline)
$(this.container).add(this.$outline)
.on('click', '.'+CSS_CLASS_NAMES.link, this, this.link_handler);
this.render();
@ -253,12 +261,15 @@
find_pages : function() {
var new_pages = [];
var new_page_map = {};
var $pl= this.$container.children('.'+CSS_CLASS_NAMES.page_frame);
/* 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]);
new_page_map[p.n] = i;
var nodes = this.container.childNodes;
for(var i = 0, l = nodes.length; i < l; ++i) {
var cur_node = nodes[i];
if((cur_node.nodeType == Node.ELEMENT_NODE)
&& cur_node.classList.contains(CSS_CLASS_NAMES.page_frame)) {
var p = new Page(cur_node);
new_pages.push(p);
new_page_map[p.n] = new_pages.length - 1;
}
}
this.pages = new_pages;
this.page_map = new_page_map;
@ -290,31 +301,43 @@
url: url,
dataType: 'text'
}).done(function(data){
// find the page element in the data
var div = document.createElement('div');
div.innerHTML = data;
var new_page = null;
var nodes = div.childNodes;
for(var i = 0, l = nodes.length; i < l; ++i) {
var cur_node = nodes[i];
if(cur_node.classList.contains(CSS_CLASS_NAMES.page_frame)) {
new_page = cur_node;
break;
}
}
// replace the old page with loaded data
// the loading indicator on this page should also be destroyed
var p = _.pages[idx];
$(p.p).replaceWith(data);
var p = _.pages[_idx];
_.container.replaceChild(new_page, p.p);
p = new Page(new_page);
_.pages[_idx] = p;
var $new_pf = _.$container.children('#' + CSS_CLASS_NAMES.page_frame + p.n.toString(16));
//TODO: check $new_pf is not empty
p = new Page($new_pf[0]);
p.hide();
p.rescale(_.scale);
// disable background image dragging
/* TODO
$new_pf.find('.'+CSS_CLASS_NAMES.background_image).on('dragstart', function(e){return false;});
*/
_.pages[idx] = p;
_.schedule_render(false);
// Reset loading token
delete _.pages_loading[idx];
if (successCallback) successCallback(_.pages[idx]);
if (successCallback) successCallback(_.pages[_idx]);
}).fail(function(jqXHR, textStatus, errorThrown){
// Reset loading token
delete _.pages_loading[idx];
delete _.pages_loading[_idx];
if (errorCallback) errorCallback();
});
}
@ -348,8 +371,9 @@
if(p.is_nearly_visible()){
if (p.loaded) {
p.show();
} else
this.load_page(pm[p.n]);
} else {
this.load_page(i);
}
} else {
p.hide();
}
@ -360,7 +384,7 @@
* renew: renew the existing schedule instead of using the old one
*/
schedule_render : function(renew) {
if(this.render_timer) {
if(this.render_timer !== undefined) {
if(!renew) return;
clearTimeout(this.render_timer);
}
@ -429,7 +453,7 @@
if (with_alt) { // alt-pageup -> scroll one page up
_.scroll_to(_.get_prev_page());
} else { // pageup -> scroll one screen up
_.$container.scrollTop(_.$container.scrollTop()-_.$container.height());
_.container.scrollTop -= _.container.clientHeight;
}
handled = true;
break;
@ -437,19 +461,19 @@
if (with_alt) { // alt-pagedown -> scroll one page down
_.scroll_to(_.get_next_page());
} else { // pagedown -> scroll one screen down
_.$container.scrollTop(_.$container.scrollTop()+_.$container.height());
_.container.scrollTop += _.container.clientHeight;
}
handled = true;
break;
case 35: // End
if (with_ctrl) {
_.$container.scrollTop(_.$container[0].scrollHeight);
_.container.scrollTop = _.container.scrollHeight;
handled = true;
}
break;
case 36: // Home
if (e.with_ctrl) {
_.$container.scrollTop(0);
_.container.scrollTop = 0;
handled = true;
}
break;
@ -496,16 +520,17 @@
for(var i = 0, l = pl.length; i < l; ++i)
pl[i].rescale(this.scale);
var container = this.container;
// Correct container scroll to keep view aligned while zooming
var correction_top = active_page_ele.offsetTop - prev_offset[1];
this.$container.scrollTop( this.$container.scrollTop() + correction_top + offsetY );
container.scrollTop += correction_top + offsetY;
// Take the center of the view as a reference
var prev_center_x = this.$container.width() / 2 - prev_offset[0];
var prev_center_x = container.clientWidth / 2 - prev_offset[0];
// Calculate the difference respect the center of the view after the zooming
var correction_left = prev_center_x * (this.scale/old_scale - 1) + active_page_ele.offsetLeft - prev_offset[0];
// Scroll the container accordingly to keep alignment to the initial reference
this.$container.scrollLeft( this.$container.scrollLeft() + correction_left + offsetX );
container.scrollLeft += correction_left + offsetX;
// some pages' visibility may be toggled, wait for next render()
// renew old schedules since rescale() may be called frequently
@ -516,7 +541,7 @@
var active_page = this.get_active_page();
if(!active_page) return;
this.rescale(this.$container.width() / active_page.width(), false);
this.rescale(this.container.clientWidth / active_page.width(), false);
this.scroll_to(this.page_map[active_page.n], [0,0]);
},
@ -524,7 +549,7 @@
var active_page = this.get_active_page();
if(!active_page) return;
this.rescale(this.$container.height() / active_page.height(), false);
this.rescale(this.container.clientHeight / active_page.height(), false);
this.scroll_to(this.page_map[active_page.n], [0,0]);
},
@ -553,12 +578,12 @@
link_handler : function (e) {
var _ = e.data;
var t = $(e.currentTarget);
var target = e.currentTarget;
var cur_pos = [0,0];
// cur_page might be undefined, e.g. from Outline
var cur_page = _.get_containing_page(t);
var cur_page = _.get_containing_page(target);
if(cur_page)
{
cur_pos = cur_page.position();
@ -566,7 +591,7 @@
cur_pos = transform(cur_page.ictm, [cur_pos[0], cur_page.height()-cur_pos[1]]);
}
var detail_str = /** @type{string} */ (t.attr('data-dest-detail'));
var detail_str = /** @type{string} */ (e.target.getAttribute('data-dest-detail'));
if(detail_str === undefined) return;
var ok = false;
@ -649,12 +674,13 @@
var cur_target_pos = target_page.position();
this.$container.scrollLeft(this.$container.scrollLeft()-cur_target_pos[0]+pos[0]);
this.$container.scrollTop(this.$container.scrollTop()-cur_target_pos[1]+pos[1]);
var container = this.container;
container.scrollLeft += pos[0] - cur_target_pos[0];
container.scrollTop += pos[1] - cur_target_pos[1];
},
__last_member__ : 'no comma' /*,*/
});
pdf2htmlEX['Viewer'] = Viewer;
})(window['pdf2htmlEX'] = window['pdf2htmlEX'] || {});
})((window['pdf2htmlEX'] = window['pdf2htmlEX'] || {}), document);