mirror of
https://github.com/futurepress/epub.js.git
synced 2025-10-04 15:09:16 +02:00
Intial move to ES2015
This commit is contained in:
Fred Chasen
parent
b0944bdff8
commit
353dfa62fd
46 changed files with 16839 additions and 18742 deletions
278
src/layout.js
278
src/layout.js
|
|
@ -1,4 +1,4 @@
|
|||
var core = require('./core');
|
||||
import core from './utils/core';
|
||||
|
||||
/**
|
||||
* Figures out the CSS to apply for a layout
|
||||
|
|
@ -9,146 +9,148 @@ var core = require('./core');
|
|||
* @param {[int=800]} settings.minSpreadWidth
|
||||
* @param {[boolean=false]} settings.evenSpreads
|
||||
*/
|
||||
function Layout(settings){
|
||||
this.name = settings.layout || "reflowable";
|
||||
this._spread = (settings.spread === "none") ? false : true;
|
||||
this._minSpreadWidth = settings.minSpreadWidth || 800;
|
||||
this._evenSpreads = settings.evenSpreads || false;
|
||||
class Layout {
|
||||
constructor(settings) {
|
||||
this.name = settings.layout || "reflowable";
|
||||
this._spread = (settings.spread === "none") ? false : true;
|
||||
this._minSpreadWidth = settings.minSpreadWidth || 800;
|
||||
this._evenSpreads = settings.evenSpreads || false;
|
||||
|
||||
if (settings.flow === "scrolled-continuous" ||
|
||||
settings.flow === "scrolled-doc") {
|
||||
this._flow = "scrolled";
|
||||
} else {
|
||||
this._flow = "paginated";
|
||||
}
|
||||
if (settings.flow === "scrolled-continuous" ||
|
||||
settings.flow === "scrolled-doc") {
|
||||
this._flow = "scrolled";
|
||||
} else {
|
||||
this._flow = "paginated";
|
||||
}
|
||||
|
||||
|
||||
this.width = 0;
|
||||
this.height = 0;
|
||||
this.spreadWidth = 0;
|
||||
this.delta = 0;
|
||||
this.width = 0;
|
||||
this.height = 0;
|
||||
this.spreadWidth = 0;
|
||||
this.delta = 0;
|
||||
|
||||
this.columnWidth = 0;
|
||||
this.gap = 0;
|
||||
this.divisor = 1;
|
||||
};
|
||||
|
||||
/**
|
||||
* Switch the flow between paginated and scrolled
|
||||
* @param {string} flow paginated | scrolled
|
||||
*/
|
||||
Layout.prototype.flow = function(flow) {
|
||||
this._flow = (flow === "paginated") ? "paginated" : "scrolled";
|
||||
}
|
||||
|
||||
/**
|
||||
* Switch between using spreads or not, and set the
|
||||
* width at which they switch to single.
|
||||
* @param {string} spread true | false
|
||||
* @param {boolean} min integer in pixels
|
||||
*/
|
||||
Layout.prototype.spread = function(spread, min) {
|
||||
|
||||
this._spread = (spread === "none") ? false : true;
|
||||
|
||||
if (min >= 0) {
|
||||
this._minSpreadWidth = min;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculate the dimensions of the pagination
|
||||
* @param {number} _width [description]
|
||||
* @param {number} _height [description]
|
||||
* @param {number} _gap [description]
|
||||
*/
|
||||
Layout.prototype.calculate = function(_width, _height, _gap){
|
||||
|
||||
var divisor = 1;
|
||||
var gap = _gap || 0;
|
||||
|
||||
//-- Check the width and create even width columns
|
||||
var fullWidth = Math.floor(_width);
|
||||
var width = _width;
|
||||
|
||||
var section = Math.floor(width / 8);
|
||||
|
||||
var colWidth;
|
||||
var spreadWidth;
|
||||
var delta;
|
||||
|
||||
if (this._spread && width >= this._minSpreadWidth) {
|
||||
divisor = 2;
|
||||
} else {
|
||||
divisor = 1;
|
||||
}
|
||||
|
||||
if (this.name === "reflowable" && this._flow === "paginated" && !(_gap >= 0)) {
|
||||
gap = ((section % 2 === 0) ? section : section - 1);
|
||||
}
|
||||
|
||||
if (this.name === "pre-paginated" ) {
|
||||
gap = 0;
|
||||
}
|
||||
|
||||
//-- Double Page
|
||||
if(divisor > 1) {
|
||||
colWidth = (width - gap) / divisor;
|
||||
} else {
|
||||
colWidth = width;
|
||||
}
|
||||
|
||||
if (this.name === "pre-paginated" && divisor > 1) {
|
||||
width = colWidth;
|
||||
}
|
||||
|
||||
spreadWidth = colWidth * divisor;
|
||||
|
||||
delta = (colWidth + gap) * divisor;
|
||||
|
||||
this.width = width;
|
||||
this.height = _height;
|
||||
this.spreadWidth = spreadWidth;
|
||||
this.delta = delta;
|
||||
|
||||
this.columnWidth = colWidth;
|
||||
this.gap = gap;
|
||||
this.divisor = divisor;
|
||||
};
|
||||
|
||||
/**
|
||||
* Apply Css to a Document
|
||||
* @param {Contents} contents
|
||||
* @return {[Promise]}
|
||||
*/
|
||||
Layout.prototype.format = function(contents){
|
||||
var formating;
|
||||
|
||||
if (this.name === "pre-paginated") {
|
||||
formating = contents.fit(this.columnWidth, this.height);
|
||||
} else if (this._flow === "paginated") {
|
||||
formating = contents.columns(this.width, this.height, this.columnWidth, this.gap);
|
||||
} else { // scrolled
|
||||
formating = contents.size(this.width, null);
|
||||
}
|
||||
|
||||
return formating; // might be a promise in some View Managers
|
||||
};
|
||||
|
||||
/**
|
||||
* Count number of pages
|
||||
* @param {number} totalWidth
|
||||
* @return {number} spreads
|
||||
* @return {number} pages
|
||||
*/
|
||||
Layout.prototype.count = function(totalWidth) {
|
||||
// var totalWidth = contents.scrollWidth();
|
||||
var spreads = Math.ceil( totalWidth / this.spreadWidth);
|
||||
|
||||
return {
|
||||
spreads : spreads,
|
||||
pages : spreads * this.divisor
|
||||
this.columnWidth = 0;
|
||||
this.gap = 0;
|
||||
this.divisor = 1;
|
||||
};
|
||||
};
|
||||
|
||||
module.exports = Layout;
|
||||
/**
|
||||
* Switch the flow between paginated and scrolled
|
||||
* @param {string} flow paginated | scrolled
|
||||
*/
|
||||
flow(flow) {
|
||||
this._flow = (flow === "paginated") ? "paginated" : "scrolled";
|
||||
}
|
||||
|
||||
/**
|
||||
* Switch between using spreads or not, and set the
|
||||
* width at which they switch to single.
|
||||
* @param {string} spread true | false
|
||||
* @param {boolean} min integer in pixels
|
||||
*/
|
||||
spread(spread, min) {
|
||||
|
||||
this._spread = (spread === "none") ? false : true;
|
||||
|
||||
if (min >= 0) {
|
||||
this._minSpreadWidth = min;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculate the dimensions of the pagination
|
||||
* @param {number} _width [description]
|
||||
* @param {number} _height [description]
|
||||
* @param {number} _gap [description]
|
||||
*/
|
||||
calculate(_width, _height, _gap){
|
||||
|
||||
var divisor = 1;
|
||||
var gap = _gap || 0;
|
||||
|
||||
//-- Check the width and create even width columns
|
||||
var fullWidth = Math.floor(_width);
|
||||
var width = _width;
|
||||
|
||||
var section = Math.floor(width / 8);
|
||||
|
||||
var colWidth;
|
||||
var spreadWidth;
|
||||
var delta;
|
||||
|
||||
if (this._spread && width >= this._minSpreadWidth) {
|
||||
divisor = 2;
|
||||
} else {
|
||||
divisor = 1;
|
||||
}
|
||||
|
||||
if (this.name === "reflowable" && this._flow === "paginated" && !(_gap >= 0)) {
|
||||
gap = ((section % 2 === 0) ? section : section - 1);
|
||||
}
|
||||
|
||||
if (this.name === "pre-paginated" ) {
|
||||
gap = 0;
|
||||
}
|
||||
|
||||
//-- Double Page
|
||||
if(divisor > 1) {
|
||||
colWidth = (width - gap) / divisor;
|
||||
} else {
|
||||
colWidth = width;
|
||||
}
|
||||
|
||||
if (this.name === "pre-paginated" && divisor > 1) {
|
||||
width = colWidth;
|
||||
}
|
||||
|
||||
spreadWidth = colWidth * divisor;
|
||||
|
||||
delta = (colWidth + gap) * divisor;
|
||||
|
||||
this.width = width;
|
||||
this.height = _height;
|
||||
this.spreadWidth = spreadWidth;
|
||||
this.delta = delta;
|
||||
|
||||
this.columnWidth = colWidth;
|
||||
this.gap = gap;
|
||||
this.divisor = divisor;
|
||||
};
|
||||
|
||||
/**
|
||||
* Apply Css to a Document
|
||||
* @param {Contents} contents
|
||||
* @return {[Promise]}
|
||||
*/
|
||||
format(contents){
|
||||
var formating;
|
||||
|
||||
if (this.name === "pre-paginated") {
|
||||
formating = contents.fit(this.columnWidth, this.height);
|
||||
} else if (this._flow === "paginated") {
|
||||
formating = contents.columns(this.width, this.height, this.columnWidth, this.gap);
|
||||
} else { // scrolled
|
||||
formating = contents.size(this.width, null);
|
||||
}
|
||||
|
||||
return formating; // might be a promise in some View Managers
|
||||
};
|
||||
|
||||
/**
|
||||
* Count number of pages
|
||||
* @param {number} totalWidth
|
||||
* @return {number} spreads
|
||||
* @return {number} pages
|
||||
*/
|
||||
count(totalWidth) {
|
||||
// var totalWidth = contents.scrollWidth();
|
||||
var spreads = Math.ceil( totalWidth / this.spreadWidth);
|
||||
|
||||
return {
|
||||
spreads : spreads,
|
||||
pages : spreads * this.divisor
|
||||
};
|
||||
};
|
||||
}
|
||||
|
||||
export default Layout;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue