mirror of
https://github.com/futurepress/epub.js.git
synced 2025-10-04 15:09:16 +02:00
Add RTL support
This commit is contained in:
Fred Chasen
parent
8999feb613
commit
9b6e864ae4
10 changed files with 380 additions and 111 deletions
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@ -33,17 +33,18 @@
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rendition.display(currentSectionIndex);
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var title = document.getElementById("title");
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book.ready.then(() => {
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var next = document.getElementById("next");
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next.addEventListener("click", function(e){
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rendition.next();
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book.package.metadata.direction === "rtl" ? rendition.prev() : rendition.next();
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e.preventDefault();
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}, false);
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var prev = document.getElementById("prev");
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prev.addEventListener("click", function(e){
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rendition.prev();
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book.package.metadata.direction === "rtl" ? rendition.next() : rendition.prev();
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e.preventDefault();
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}, false);
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@ -51,12 +52,12 @@
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// Left Key
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if ((e.keyCode || e.which) == 37) {
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rendition.prev();
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book.package.metadata.direction === "rtl" ? rendition.next() : rendition.prev();
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}
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// Right Key
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if ((e.keyCode || e.which) == 39) {
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rendition.next();
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book.package.metadata.direction === "rtl" ? rendition.prev() : rendition.next();
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}
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};
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@ -64,12 +65,11 @@
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rendition.on("keyup", keyListener);
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document.addEventListener("keyup", keyListener, false);
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})
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var title = document.getElementById("title");
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rendition.on("rendered", function(section){
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var nextSection = section.next();
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var prevSection = section.prev();
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var current = book.navigation && book.navigation.get(section.href);
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if (current) {
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@ -88,22 +88,26 @@
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}
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}
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if(nextSection) {
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next.textContent = "›";
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} else {
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next.textContent = "";
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}
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if(prevSection) {
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prev.textContent = "‹";
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} else {
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prev.textContent = "";
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}
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});
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rendition.on("relocated", function(location){
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console.log(location);
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var next = book.package.metadata.direction === "rtl" ? document.getElementById("prev") : document.getElementById("next");
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var prev = book.package.metadata.direction === "rtl" ? document.getElementById("next") : document.getElementById("prev");
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if (location.atEnd) {
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next.style.visibility = "hidden";
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} else {
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next.style.visibility = "visible";
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}
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if (location.atStart) {
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prev.style.visibility = "hidden";
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} else {
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prev.style.visibility = "visible";
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}
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});
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window.addEventListener("unload", function () {
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@ -332,6 +332,7 @@ class Contents {
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resizeCheck() {
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let width = this.textWidth();
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let height = this.textHeight();
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if (width != this._size.width || height != this._size.height) {
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this._size = {
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@ -763,7 +764,7 @@ class Contents {
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var COLUMN_WIDTH = prefixed("column-width");
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var COLUMN_FILL = prefixed("column-fill");
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this.width(width);
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this.width("100%");
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this.height(height);
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// Deal with Mobile trying to scale to viewport
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@ -819,6 +820,12 @@ class Contents {
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this.css("background-color", "transparent");
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}
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direction(dir) {
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if (this.documentElement) {
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this.documentElement.style["direction"] = dir;
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}
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}
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mapPage(cfiBase, layout, start, end, dev) {
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var mapping = new Mapping(layout, dev);
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@ -426,13 +426,14 @@ class ContinuousViewManager extends DefaultViewManager {
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onScroll(){
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let scrollTop;
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let scrollLeft;
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let dir = this.settings.direction === "rtl" ? -1 : 1;
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if(this.settings.height) {
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scrollTop = this.container.scrollTop;
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scrollLeft = this.container.scrollLeft;
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} else {
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scrollTop = window.scrollY;
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scrollLeft = window.scrollX;
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scrollTop = window.scrollY * dir;
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scrollLeft = window.scrollX * dir;
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}
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this.scrollTop = scrollTop;
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@ -36,6 +36,8 @@ class DefaultViewManager {
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height: 0
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};
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this.rendered = false;
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}
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render(element, size){
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@ -60,7 +62,8 @@ class DefaultViewManager {
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overflow: this.overflow,
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hidden: this.settings.hidden,
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axis: this.settings.axis,
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fullsize: this.fullsize
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fullsize: this.fullsize,
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direction: this.settings.direction
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});
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this.stage.attachTo(element);
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@ -93,6 +96,9 @@ class DefaultViewManager {
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if (this.layout) {
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this.updateLayout();
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}
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this.rendered = true;
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}
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addEventListeners(){
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@ -134,6 +140,8 @@ class DefaultViewManager {
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this.stage.destroy();
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this.rendered = false;
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/*
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clearTimeout(this.trimTimeout);
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@ -227,7 +235,13 @@ class DefaultViewManager {
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// View is already shown, just move to correct location in view
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if(visible && section) {
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let offset = visible.offset();
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if (this.settings.direction === "ltr") {
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this.scrollTo(offset.left, offset.top, true);
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} else {
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let width = view.width();
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this.scrollTo(offset.left + width, offset.top, true);
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}
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if(target) {
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let offset = visible.locationOf(target);
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@ -244,6 +258,16 @@ class DefaultViewManager {
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this.add(section)
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.then(function(view){
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// if (this.settings.direction === "rtl") {
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// let offset = view.offset();
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// let width = view.width();
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//
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// this.moveTo({
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// left: offset.left + width,
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// top: offset.top
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// });
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// }
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// Move to correct place within the section, if needed
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if(target) {
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let offset = view.locationOf(target);
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@ -331,6 +355,10 @@ class DefaultViewManager {
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prepend(section){
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var view = this.createView(section);
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view.on("resized", (bounds) => {
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this.counter(bounds);
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});
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this.views.prepend(view);
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view.onDisplayed = this.afterDisplayed.bind(this);
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@ -338,6 +366,16 @@ class DefaultViewManager {
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return view.display(this.request);
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}
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counter(bounds){
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if(this.settings.axis === "vertical") {
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this.scrollBy(0, bounds.heightDelta, true);
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} else {
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this.scrollBy(bounds.widthDelta, 0, true);
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}
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}
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// resizeView(view) {
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//
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// if(this.settings.globalLayoutProperties.layout === "pre-paginated") {
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@ -352,22 +390,35 @@ class DefaultViewManager {
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var next;
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var left;
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let dir = this.settings.direction;
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if(!this.views.length) return;
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if(this.settings.axis === "horizontal") {
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if(this.settings.axis === "horizontal" && (!dir || dir === "ltr")) {
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this.scrollLeft = this.container.scrollLeft;
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left = this.container.scrollLeft + this.container.offsetWidth + this.layout.delta;
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left = this.container.scrollLeft + this.container.offsetWidth + this.layout.delta; // 450 off
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if(left <= this.container.scrollWidth) {
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this.scrollBy(this.layout.delta, 0, true);
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} else if (left - this.layout.columnWidth === this.container.scrollWidth) {
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} else if ((left - this.layout.pageWidth) === this.container.scrollWidth) {
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this.scrollTo(this.container.scrollWidth - this.layout.delta, 0, true);
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next = this.views.last().section.next();
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} else {
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next = this.views.last().section.next();
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}
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} else if (this.settings.axis === "horizontal" && dir === "rtl") {
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this.scrollLeft = this.container.scrollLeft;
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left = this.container.scrollLeft;
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if(left > 0) {
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this.scrollBy(-this.layout.delta, 0, true);
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} else {
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next = this.views.last().section.next();
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}
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} else {
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next = this.views.last().section.next();
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}
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@ -396,10 +447,11 @@ class DefaultViewManager {
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prev(){
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var prev;
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var left;
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let dir = this.settings.direction;
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if(!this.views.length) return;
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if(this.settings.axis === "horizontal") {
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if(this.settings.axis === "horizontal" && (!dir || dir === "ltr")) {
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this.scrollLeft = this.container.scrollLeft;
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@ -411,6 +463,19 @@ class DefaultViewManager {
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prev = this.views.first().section.prev();
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}
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} else if (this.settings.axis === "horizontal" && dir === "rtl") {
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this.scrollLeft = this.container.scrollLeft;
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left = this.container.scrollLeft + this.container.offsetWidth + this.layout.delta;
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if(left <= this.container.scrollWidth) {
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this.scrollBy(this.layout.delta, 0, true);
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} else if ((left - this.layout.pageWidth) === this.container.scrollWidth) {
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this.scrollTo(this.container.scrollWidth - this.layout.delta, 0, true);
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} else {
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prev = this.views.first().section.prev();
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}
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} else {
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@ -433,8 +498,13 @@ class DefaultViewManager {
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}.bind(this))
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.then(function(){
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if(this.settings.axis === "horizontal") {
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if (this.settings.direction === "rtl") {
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this.scrollTo(0, 0, true);
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} else {
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console.log(this.container.scrollWidth);
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this.scrollTo(this.container.scrollWidth - this.layout.delta, 0, true);
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}
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}
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this.views.show();
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}.bind(this));
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}
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@ -543,20 +613,33 @@ class DefaultViewManager {
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let mapping = this.mapping.page(view.contents, view.section.cfiBase, start, end);
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// Find displayed pages
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let startPos = left + used;
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let endPos = startPos + this.layout.spreadWidth - used;
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if (endPos > offset + width) {
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endPos = offset + width;
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used = this.layout.pageWidth;
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}
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//console.log("pre", end, offset + width);
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// if (end > offset + width) {
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// end = offset + width;
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// used = this.layout.pageWidth;
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// }
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// console.log("post", end);
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let totalPages = this.layout.count(width).pages;
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let currPage = Math.ceil((startPos + (this.layout.gap) - offset) / this.layout.pageWidth);
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let startPage = Math.floor(start / this.layout.pageWidth);
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let pages = [];
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let endPage = Math.ceil((endPos - (this.layout.gap) - offset) / this.layout.pageWidth);
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let endPage = Math.floor(end / this.layout.pageWidth);
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pages = [currPage];
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for (var i = currPage; i <= endPage; i++) {
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// start page should not be negative
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if (startPage < 0) {
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startPage = 0;
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endPage = endPage + 1;
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}
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// Reverse page counts for rtl
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if (this.settings.direction === "rtl") {
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let tempStartPage = startPage;
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startPage = totalPages - endPage;
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endPage = totalPages - tempStartPage;
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}
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for (var i = startPage + 1; i <= endPage; i++) {
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let pg = i;
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pages.push(pg);
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}
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@ -615,6 +698,8 @@ class DefaultViewManager {
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}
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scrollBy(x, y, silent){
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let dir = this.settings.direction === "rtl" ? -1 : 1;
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if(silent) {
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this.ignore = true;
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}
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@ -623,7 +708,7 @@ class DefaultViewManager {
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if(x) this.container.scrollLeft += x;
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if(y) this.container.scrollTop += y;
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} else {
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window.scrollBy(x,y);
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window.scrollBy(x * dir, y * dir);
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}
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this.scrolled = true;
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}
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@ -692,7 +777,7 @@ class DefaultViewManager {
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this.layout = layout;
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this.updateLayout();
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this.mapping = new Mapping(this.layout.props);
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this.mapping = new Mapping(this.layout.props, this.settings.direction);
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// this.manager.layout(this.layout.format);
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}
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@ -778,6 +863,20 @@ class DefaultViewManager {
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});
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return contents;
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}
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direction(dir="ltr") {
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this.settings.direction = dir;
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this.stage && this.stage.direction(dir);
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this.viewSettings.direction = dir;
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this.updateLayout();
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}
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isRendered() {
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return this.rendered;
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}
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}
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//-- Enable binding events to Manager
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@ -19,10 +19,11 @@ class Stage {
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* Resizes to passed width and height or to the elements size
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*/
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create(options){
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var height = options.height;// !== false ? options.height : "100%";
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var width = options.width;// !== false ? options.width : "100%";
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var overflow = options.overflow || false;
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var axis = options.axis || "vertical";
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let height = options.height;// !== false ? options.height : "100%";
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let width = options.width;// !== false ? options.width : "100%";
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let overflow = options.overflow || false;
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let axis = options.axis || "vertical";
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let direction = options.direction;
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if(options.height && isNumber(options.height)) {
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height = options.height + "px";
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@ -64,6 +65,15 @@ class Stage {
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container.style.overflow = overflow;
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}
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if (direction) {
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container.dir = direction;
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container.style["direction"] = direction;
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}
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if (direction && this.settings.fullsize) {
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document.body.style["direction"] = direction;
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}
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return container;
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}
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@ -270,6 +280,17 @@ class Stage {
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// this.orientation = orientation;
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// }
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direction(dir) {
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if (this.container) {
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this.container.dir = dir;
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this.container.style["direction"] = dir;
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}
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if (this.settings.fullsize) {
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document.body.style["direction"] = dir;
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}
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}
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destroy() {
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var base;
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@ -9,6 +9,7 @@ class IframeView {
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this.settings = extend({
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ignoreClass : "",
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axis: "vertical",
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direction: "ltr",
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width: 0,
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height: 0,
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layout: undefined,
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132
src/mapping.js
132
src/mapping.js
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@ -1,9 +1,10 @@
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import EpubCFI from "./epubcfi";
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class Mapping {
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constructor(layout, dev) {
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constructor(layout, direction, dev) {
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this.layout = layout;
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this.horizontal = (this.layout.flow === "paginated") ? true : false;
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this.direction = direction || "ltr";
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this._dev = dev;
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}
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@ -107,7 +108,7 @@ class Mapping {
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$el = stack.shift();
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found = this.walk($el, (node) => {
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var left, right;
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var left, right, top, bottom;
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var elPos;
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var elRange;
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@ -120,6 +121,8 @@ class Mapping {
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elPos = node.getBoundingClientRect();
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}
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if (this.horizontal && this.direction === "ltr") {
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left = this.horizontal ? elPos.left : elPos.top;
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right = this.horizontal ? elPos.right : elPos.bottom;
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@ -132,6 +135,37 @@ class Mapping {
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stack.push(node);
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}
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|
||||
} else if (this.horizontal && this.direction === "rtl") {
|
||||
|
||||
left = elPos.left;
|
||||
right = elPos.right;
|
||||
|
||||
if( right <= end && right >= start ) {
|
||||
return node;
|
||||
} else if (left < end) {
|
||||
return node;
|
||||
} else {
|
||||
$prev = node;
|
||||
stack.push(node);
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
top = elPos.top;
|
||||
bottom = elPos.bottom;
|
||||
|
||||
if( top >= start && top <= end ) {
|
||||
return node;
|
||||
} else if (bottom > start) {
|
||||
return node;
|
||||
} else {
|
||||
$prev = node;
|
||||
stack.push(node);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
});
|
||||
|
||||
if(found) {
|
||||
|
|
@ -156,7 +190,7 @@ class Mapping {
|
|||
|
||||
found = this.walk($el, (node) => {
|
||||
|
||||
var left, right;
|
||||
var left, right, top, bottom;
|
||||
var elPos;
|
||||
var elRange;
|
||||
|
||||
|
|
@ -169,8 +203,10 @@ class Mapping {
|
|||
elPos = node.getBoundingClientRect();
|
||||
}
|
||||
|
||||
left = Math.round(this.horizontal ? elPos.left : elPos.top);
|
||||
right = Math.round(this.horizontal ? elPos.right : elPos.bottom);
|
||||
if (this.horizontal && this.direction === "ltr") {
|
||||
|
||||
left = Math.round(elPos.left);
|
||||
right = Math.round(elPos.right);
|
||||
|
||||
if(left > end && $prev) {
|
||||
return $prev;
|
||||
|
|
@ -181,6 +217,36 @@ class Mapping {
|
|||
stack.push(node);
|
||||
}
|
||||
|
||||
} else if (this.horizontal && this.direction === "rtl") {
|
||||
|
||||
left = Math.round(this.horizontal ? elPos.left : elPos.top);
|
||||
right = Math.round(this.horizontal ? elPos.right : elPos.bottom);
|
||||
|
||||
if(right < start && $prev) {
|
||||
return $prev;
|
||||
} else if(left < start) {
|
||||
return node;
|
||||
} else {
|
||||
$prev = node;
|
||||
stack.push(node);
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
top = Math.round(elPos.top);
|
||||
bottom = Math.round(elPos.bottom);
|
||||
|
||||
if(top > end && $prev) {
|
||||
return $prev;
|
||||
} else if(bottom > end) {
|
||||
return node;
|
||||
} else {
|
||||
$prev = node;
|
||||
stack.push(node);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
});
|
||||
|
||||
|
||||
|
|
@ -199,18 +265,36 @@ class Mapping {
|
|||
var ranges = this.splitTextNodeIntoRanges(node);
|
||||
var range;
|
||||
var pos;
|
||||
var left;
|
||||
var left, top, right;
|
||||
|
||||
for (var i = 0; i < ranges.length; i++) {
|
||||
range = ranges[i];
|
||||
|
||||
pos = range.getBoundingClientRect();
|
||||
left = this.horizontal ? pos.left : pos.top;
|
||||
|
||||
if (this.horizontal && this.direction === "ltr") {
|
||||
|
||||
left = pos.left;
|
||||
if( left >= start ) {
|
||||
return range;
|
||||
}
|
||||
|
||||
} else if (this.horizontal && this.direction === "rtl") {
|
||||
|
||||
right = pos.right;
|
||||
if( right <= end ) {
|
||||
return range;
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
top = pos.top;
|
||||
if( top >= start ) {
|
||||
return range;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// prev = range;
|
||||
|
||||
}
|
||||
|
|
@ -223,14 +307,17 @@ class Mapping {
|
|||
var prev;
|
||||
var range;
|
||||
var pos;
|
||||
var left, right;
|
||||
var left, right, top, bottom;
|
||||
|
||||
for (var i = 0; i < ranges.length; i++) {
|
||||
range = ranges[i];
|
||||
|
||||
pos = range.getBoundingClientRect();
|
||||
left = this.horizontal ? pos.left : pos.top;
|
||||
right = this.horizontal ? pos.right : pos.bottom;
|
||||
|
||||
if (this.horizontal && this.direction === "ltr") {
|
||||
|
||||
left = pos.left;
|
||||
right = pos.right;
|
||||
|
||||
if(left > end && prev) {
|
||||
return prev;
|
||||
|
|
@ -238,6 +325,31 @@ class Mapping {
|
|||
return range;
|
||||
}
|
||||
|
||||
} else if (this.horizontal && this.direction === "rtl") {
|
||||
|
||||
left = pos.left
|
||||
right = pos.right;
|
||||
|
||||
if(right < start && prev) {
|
||||
return prev;
|
||||
} else if(left < start) {
|
||||
return range;
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
top = pos.top;
|
||||
bottom = pos.bottom;
|
||||
|
||||
if(top > end && prev) {
|
||||
return prev;
|
||||
} else if(bottom > end) {
|
||||
return range;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
prev = range;
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,7 +9,7 @@ class Navigation {
|
|||
this.toc = [];
|
||||
this.tocByHref = {};
|
||||
this.tocById = {};
|
||||
|
||||
this.length = 0;
|
||||
if (xml) {
|
||||
this.parse(xml);
|
||||
}
|
||||
|
|
@ -54,6 +54,7 @@ class Navigation {
|
|||
this.tocById[item.id] = i;
|
||||
}
|
||||
|
||||
this.length = toc.length;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -4,7 +4,7 @@ import Hook from "./utils/hook";
|
|||
import EpubCFI from "./epubcfi";
|
||||
import Queue from "./utils/queue";
|
||||
import Layout from "./layout";
|
||||
import Mapping from "./mapping";
|
||||
// import Mapping from "./mapping";
|
||||
import Themes from "./themes";
|
||||
import Contents from "./contents";
|
||||
import Annotations from "./annotations";
|
||||
|
|
@ -164,6 +164,8 @@ class Rendition {
|
|||
});
|
||||
}
|
||||
|
||||
this.direction(this.book.package.metadata.direction);
|
||||
|
||||
// Parse metadata to get layout props
|
||||
this.settings.globalLayoutProperties = this.determineLayoutProperties(this.book.package.metadata);
|
||||
|
||||
|
|
@ -248,9 +250,9 @@ class Rendition {
|
|||
this.displaying = displaying;
|
||||
|
||||
// Check if this is a book percentage
|
||||
if (this.book.locations.length &&
|
||||
if (this.book.locations.length() &&
|
||||
(isFloat(target) ||
|
||||
(typeof target === "string" && target == parseFloat(target))) // Handle 1.0
|
||||
(target === "1.0")) // Handle 1.0
|
||||
) {
|
||||
target = this.book.locations.cfiFromPercentage(parseFloat(target));
|
||||
}
|
||||
|
|
@ -426,7 +428,8 @@ class Rendition {
|
|||
var viewport = metadata.viewport || "";
|
||||
var minSpreadWidth = this.settings.minSpreadWidth || metadata.minSpreadWidth || 800;
|
||||
|
||||
if (this.settings.width >= 0 && this.settings.height >= 0) {
|
||||
if ((this.settings.width === 0 || this.settings.width > 0) &&
|
||||
(this.settings.height === 0 || this.settings.height > 0)) {
|
||||
viewport = "width="+this.settings.width+", height="+this.settings.height+"";
|
||||
}
|
||||
|
||||
|
|
@ -481,7 +484,7 @@ class Rendition {
|
|||
this.manager.updateFlow(_flow);
|
||||
}
|
||||
|
||||
if (this.location) {
|
||||
if (this.manager && this.manager.isRendered() && this.location) {
|
||||
this.manager.clear();
|
||||
this.display(this.location.start.cfi);
|
||||
}
|
||||
|
|
@ -496,7 +499,7 @@ class Rendition {
|
|||
this._layout = new Layout(settings);
|
||||
this._layout.spread(settings.spread, this.settings.minSpreadWidth);
|
||||
|
||||
this.mapping = new Mapping(this._layout.props);
|
||||
// this.mapping = new Mapping(this._layout.props);
|
||||
}
|
||||
|
||||
if (this.manager && this._layout) {
|
||||
|
|
@ -520,6 +523,25 @@ class Rendition {
|
|||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Adjust the flow of the rendition to paginated or scrolled
|
||||
* (scrolled-continuous vs scrolled-doc are handled by different view managers)
|
||||
* @param {string} flow
|
||||
*/
|
||||
direction(dir){
|
||||
|
||||
this.settings.direction = dir || "ltr";
|
||||
|
||||
if (this.manager) {
|
||||
this.manager.direction(this.settings.direction);
|
||||
}
|
||||
|
||||
if (this.manager && this.manager.isRendered() && this.location) {
|
||||
this.manager.clear();
|
||||
this.display(this.location.start.cfi);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Report the current location
|
||||
* @private
|
||||
|
|
|
|||
|
|
@ -35,7 +35,8 @@ export function isNumber(n) {
|
|||
}
|
||||
|
||||
export function isFloat(n) {
|
||||
return isNumber(n) && (Math.floor(n) !== n);
|
||||
let f = parseFloat(n);
|
||||
return f === n && isNumber(n) && (Math.floor(f) !== n);
|
||||
}
|
||||
|
||||
export function prefixed(unprefixed) {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue