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Code Issues Projects Releases Packages Wiki Activity Actions

Adds EventBus.

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This commit is contained in:
Yury Delendik 2016-04-25 17:57:15 -05:00
parent 55581b162e
commit 7fd3db9977
17 changed files with 510 additions and 151 deletions
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65
web/pdf_viewer.js
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@ -20,21 +20,23 @@
define('pdfjs-web/pdf_viewer', ['exports', 'pdfjs-web/ui_utils',
'pdfjs-web/pdf_page_view', 'pdfjs-web/pdf_rendering_queue',
'pdfjs-web/text_layer_builder', 'pdfjs-web/annotation_layer_builder',
'pdfjs-web/pdf_link_service', 'pdfjs-web/pdfjs'], factory);
'pdfjs-web/pdf_link_service', 'pdfjs-web/dom_events', 'pdfjs-web/pdfjs'],
factory);
} else if (typeof exports !== 'undefined') {
factory(exports, require('./ui_utils.js'), require('./pdf_page_view.js'),
require('./pdf_rendering_queue.js'), require('./text_layer_builder.js'),
require('./annotation_layer_builder.js'),
require('./pdf_link_service.js'), require('./pdfjs.js'));
require('./pdf_link_service.js'), require('./dom_events.js'),
require('./pdfjs.js'));
} else {
factory((root.pdfjsWebPDFViewer = {}), root.pdfjsWebUIUtils,
root.pdfjsWebPDFPageView, root.pdfjsWebPDFRenderingQueue,
root.pdfjsWebTextLayerBuilder, root.pdfjsWebAnnotationLayerBuilder,
root.pdfjsWebPDFLinkService, root.pdfjsWebPDFJS);
root.pdfjsWebPDFLinkService, root.pdfjsWebDOMEvents, root.pdfjsWebPDFJS);
}
}(this, function (exports, uiUtils, pdfPageView, pdfRenderingQueue,
textLayerBuilder, annotationLayerBuilder, pdfLinkService,
pdfjsLib) {
domEvents, pdfjsLib) {
var UNKNOWN_SCALE = uiUtils.UNKNOWN_SCALE;
var SCROLLBAR_PADDING = uiUtils.SCROLLBAR_PADDING;
@ -66,6 +68,7 @@ var DEFAULT_CACHE_SIZE = 10;
* @typedef {Object} PDFViewerOptions
* @property {HTMLDivElement} container - The container for the viewer element.
* @property {HTMLDivElement} viewer - (optional) The viewer element.
* @property {EventBus} eventBus - The application event bus.
* @property {IPDFLinkService} linkService - The navigation/linking service.
* @property {DownloadManager} downloadManager - (optional) The download
* manager component.
@ -120,6 +123,7 @@ var PDFViewer = (function pdfViewer() {
function PDFViewer(options) {
this.container = options.container;
this.viewer = options.viewer || options.container.firstElementChild;
this.eventBus = options.eventBus || domEvents.getGlobalEventBus();
this.linkService = options.linkService || new SimpleLinkService();
this.downloadManager = options.downloadManager || null;
this.removePageBorders = options.removePageBorders || false;
@ -162,21 +166,23 @@ var PDFViewer = (function pdfViewer() {
return;
}
var event = document.createEvent('UIEvents');
event.initUIEvent('pagechange', true, true, window, 0);
event.updateInProgress = this.updateInProgress;
if (!(0 < val && val <= this.pagesCount)) {
event.pageNumber = this._currentPageNumber;
event.previousPageNumber = val;
this.container.dispatchEvent(event);
this.eventBus.dispatch('pagechange', {
source: this,
updateInProgress: this.updateInProgress,
pageNumber: this._currentPageNumber,
previousPageNumber: val
});
return;
}
event.previousPageNumber = this._currentPageNumber;
this.eventBus.dispatch('pagechange', {
source: this,
updateInProgress: this.updateInProgress,
pageNumber: val,
previousPageNumber: this._currentPageNumber
});
this._currentPageNumber = val;
event.pageNumber = val;
this.container.dispatchEvent(event);
// Check if the caller is `PDFViewer_update`, to avoid breaking scrolling.
if (this.updateInProgress) {
@ -274,11 +280,10 @@ var PDFViewer = (function pdfViewer() {
});
this.pagesPromise = pagesPromise;
pagesPromise.then(function () {
var event = document.createEvent('CustomEvent');
event.initCustomEvent('pagesloaded', true, true, {
self.eventBus.dispatch('pagesloaded', {
source: self,
pagesCount: pagesCount
});
self.container.dispatchEvent(event);
});
var isOnePageRenderedResolved = false;
@ -319,6 +324,7 @@ var PDFViewer = (function pdfViewer() {
}
var pageView = new PDFPageView({
container: this.viewer,
eventBus: this.eventBus,
id: pageNum,
scale: scale,
defaultViewport: viewport.clone(),
@ -357,9 +363,7 @@ var PDFViewer = (function pdfViewer() {
}
});
var event = document.createEvent('CustomEvent');
event.initCustomEvent('pagesinit', true, true, null);
self.container.dispatchEvent(event);
self.eventBus.dispatch('pagesinit', {source: self});
if (this.defaultRenderingQueue) {
this.update();
@ -399,13 +403,11 @@ var PDFViewer = (function pdfViewer() {
_setScaleDispatchEvent: function pdfViewer_setScaleDispatchEvent(
newScale, newValue, preset) {
var event = document.createEvent('UIEvents');
event.initUIEvent('scalechange', true, true, window, 0);
event.scale = newScale;
if (preset) {
event.presetValue = newValue;
}
this.container.dispatchEvent(event);
this.eventBus.dispatch('scalechange', {
source: this,
scale: newScale,
presetValue: preset ? newValue : undefined
});
},
_setScaleUpdatePages: function pdfViewer_setScaleUpdatePages(
@ -671,10 +673,10 @@ var PDFViewer = (function pdfViewer() {
this.updateInProgress = false;
var event = document.createEvent('UIEvents');
event.initUIEvent('updateviewarea', true, true, window, 0);
event.location = this._location;
this.container.dispatchEvent(event);
this.eventBus.dispatch('updateviewarea', {
source: this,
location: this._location
});
},
containsElement: function (element) {
@ -772,6 +774,7 @@ var PDFViewer = (function pdfViewer() {
createTextLayerBuilder: function (textLayerDiv, pageIndex, viewport) {
return new TextLayerBuilder({
textLayerDiv: textLayerDiv,
eventBus: this.eventBus,
pageIndex: pageIndex,
viewport: viewport,
findController: this.isInPresentationMode ? null : this.findController