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@ -18,9 +18,9 @@ |
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'use strict'; |
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'use strict'; |
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var DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1500; // in ms
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var DELAY_BEFORE_HIDING_CONTROLS = 3000; // in ms
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var DELAY_BEFORE_HIDING_CONTROLS = 3000; // in ms
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var SELECTOR = 'presentationControls'; |
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var SELECTOR = 'presentationControls'; |
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var DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1000; // in ms
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/** |
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/** |
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* @typedef {Object} PDFPresentationModeOptions |
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* @typedef {Object} PDFPresentationModeOptions |
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@ -32,30 +32,25 @@ var DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1000; // in ms |
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* to the context menu in Presentation Mode. |
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* to the context menu in Presentation Mode. |
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*/ |
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*/ |
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var PDFPresentationMode = { |
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initialized: false, |
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active: false, |
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args: null, |
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contextMenuOpen: false, |
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mouseScrollTimeStamp: 0, |
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mouseScrollDelta: 0, |
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/** |
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/** |
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* @class |
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*/ |
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var PDFPresentationMode = (function PDFPresentationModeClosure() { |
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/** |
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* @constructs PDFPresentationMode |
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* @param {PDFPresentationModeOptions} options |
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* @param {PDFPresentationModeOptions} options |
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*/ |
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*/ |
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initialize: function pdfPresentationModeInitialize(options) { |
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function PDFPresentationMode(options) { |
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this.initialized = true; |
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this.container = options.container; |
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this.container = options.container; |
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this.viewer = options.viewer || options.container.firstElementChild; |
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this.viewer = options.viewer || options.container.firstElementChild; |
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this.pdfThumbnailViewer = options.pdfThumbnailViewer || null; |
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this.pdfThumbnailViewer = options.pdfThumbnailViewer || null; |
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var contextMenuItems = options.contextMenuItems || null; |
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var contextMenuItems = options.contextMenuItems || null; |
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window.addEventListener('fullscreenchange', this._fullscreenChange); |
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this.active = false; |
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window.addEventListener('mozfullscreenchange', this._fullscreenChange); |
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this.args = null; |
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//#if !(FIREFOX || MOZCENTRAL)
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this.contextMenuOpen = false; |
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window.addEventListener('webkitfullscreenchange', this._fullscreenChange); |
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this.mouseScrollTimeStamp = 0; |
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window.addEventListener('MSFullscreenChange', this._fullscreenChange); |
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this.mouseScrollDelta = 0; |
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//#endif
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if (contextMenuItems) { |
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if (contextMenuItems) { |
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for (var i = 0, ii = contextMenuItems.length; i < ii; i++) { |
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for (var i = 0, ii = contextMenuItems.length; i < ii; i++) { |
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@ -66,17 +61,19 @@ var PDFPresentationMode = { |
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}.bind(this, item.handler)); |
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}.bind(this, item.handler)); |
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} |
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} |
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} |
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} |
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}, |
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} |
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PDFPresentationMode.prototype = { |
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/** |
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/** |
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* Request the browser to enter fullscreen mode. |
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* Request the browser to enter fullscreen mode. |
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* @returns {boolean} Indicating if the request was successful. |
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* @returns {boolean} Indicating if the request was successful. |
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*/ |
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*/ |
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request: function pdfPresentationModeRequest() { |
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request: function PDFPresentationMode_request() { |
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if (!this.initialized || this.switchInProgress || this.active || |
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if (this.switchInProgress || this.active || |
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!this.viewer.hasChildNodes()) { |
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!this.viewer.hasChildNodes()) { |
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return false; |
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return false; |
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} |
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} |
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this._addFullscreenChangeListeners(); |
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this._setSwitchInProgress(); |
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this._setSwitchInProgress(); |
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this._notifyStateChange(); |
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this._notifyStateChange(); |
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@ -105,8 +102,8 @@ var PDFPresentationMode = { |
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* with large enough motion, to prevent accidental page switches. |
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* with large enough motion, to prevent accidental page switches. |
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* @param {number} delta - The delta value from the mouse event. |
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* @param {number} delta - The delta value from the mouse event. |
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*/ |
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*/ |
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mouseScroll: function pdfPresentationModeMouseScroll(delta) { |
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mouseScroll: function PDFPresentationMode_mouseScroll(delta) { |
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if (!this.initialized && !this.active) { |
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if (!this.active) { |
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return; |
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return; |
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} |
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} |
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var MOUSE_SCROLL_COOLDOWN_TIME = 50; |
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var MOUSE_SCROLL_COOLDOWN_TIME = 50; |
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@ -119,12 +116,12 @@ var PDFPresentationMode = { |
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var currentTime = (new Date()).getTime(); |
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var currentTime = (new Date()).getTime(); |
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var storedTime = this.mouseScrollTimeStamp; |
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var storedTime = this.mouseScrollTimeStamp; |
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// If we've already switched page, avoid accidentally switching page again.
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// If we've already switched page, avoid accidentally switching again.
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if (currentTime > storedTime && |
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if (currentTime > storedTime && |
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currentTime - storedTime < MOUSE_SCROLL_COOLDOWN_TIME) { |
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currentTime - storedTime < MOUSE_SCROLL_COOLDOWN_TIME) { |
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return; |
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return; |
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} |
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} |
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// If the user changes scroll direction, reset the accumulated scroll delta.
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// If the scroll direction changed, reset the accumulated scroll delta.
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if ((this.mouseScrollDelta > 0 && delta < 0) || |
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if ((this.mouseScrollDelta > 0 && delta < 0) || |
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(this.mouseScrollDelta < 0 && delta > 0)) { |
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(this.mouseScrollDelta < 0 && delta > 0)) { |
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this._resetMouseScrollState(); |
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this._resetMouseScrollState(); |
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@ -137,7 +134,7 @@ var PDFPresentationMode = { |
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var page = PDFViewerApplication.page; |
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var page = PDFViewerApplication.page; |
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this._resetMouseScrollState(); |
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this._resetMouseScrollState(); |
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// If we're already on the first/last page, we don't need to do anything.
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// If we're at the first/last page, we don't need to do anything.
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if ((page === 1 && pageSwitchDirection === PageSwitchDirection.UP) || |
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if ((page === 1 && pageSwitchDirection === PageSwitchDirection.UP) || |
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(page === PDFViewerApplication.pagesCount && |
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(page === PDFViewerApplication.pagesCount && |
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pageSwitchDirection === PageSwitchDirection.DOWN)) { |
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pageSwitchDirection === PageSwitchDirection.DOWN)) { |
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@ -158,24 +155,11 @@ var PDFPresentationMode = { |
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/** |
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/** |
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* @private |
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* @private |
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*/ |
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*/ |
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_fullscreenChange: function pdfPresentationModeFullscreenChange() { |
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_notifyStateChange: function PDFPresentationMode_notifyStateChange() { |
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var self = PDFPresentationMode; |
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if (self.isFullscreen) { |
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self._enter(); |
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} else { |
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self._exit(); |
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} |
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}, |
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/** |
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* @private |
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*/ |
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_notifyStateChange: function pdfPresentationModeNotifyStateChange() { |
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var self = PDFPresentationMode; |
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var event = document.createEvent('CustomEvent'); |
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var event = document.createEvent('CustomEvent'); |
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event.initCustomEvent('presentationmodechanged', true, true, { |
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event.initCustomEvent('presentationmodechanged', true, true, { |
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active: self.active, |
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active: this.active, |
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switchInProgress: !!self.switchInProgress |
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switchInProgress: !!this.switchInProgress |
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}); |
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}); |
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window.dispatchEvent(event); |
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window.dispatchEvent(event); |
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}, |
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}, |
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@ -185,14 +169,15 @@ var PDFPresentationMode = { |
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* i.e. when the browser is requested to enter fullscreen mode. |
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* i.e. when the browser is requested to enter fullscreen mode. |
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* This timeout is used to prevent the current page from being scrolled |
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* This timeout is used to prevent the current page from being scrolled |
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* partially, or completely, out of view when entering Presentation Mode. |
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* partially, or completely, out of view when entering Presentation Mode. |
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* NOTE: This issue seems limited to certain zoom levels (e.g. 'page-width'). |
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* NOTE: This issue seems limited to certain zoom levels (e.g. page-width). |
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* @private |
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* @private |
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*/ |
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*/ |
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_setSwitchInProgress: function pdfPresentationMode_setSwitchInProgress() { |
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_setSwitchInProgress: function PDFPresentationMode_setSwitchInProgress() { |
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if (this.switchInProgress) { |
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if (this.switchInProgress) { |
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clearTimeout(this.switchInProgress); |
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clearTimeout(this.switchInProgress); |
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} |
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} |
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this.switchInProgress = setTimeout(function switchInProgressTimeout() { |
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this.switchInProgress = setTimeout(function switchInProgressTimeout() { |
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this._removeFullscreenChangeListeners(); |
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delete this.switchInProgress; |
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delete this.switchInProgress; |
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this._notifyStateChange(); |
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this._notifyStateChange(); |
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}.bind(this), DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS); |
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}.bind(this), DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS); |
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@ -201,7 +186,8 @@ var PDFPresentationMode = { |
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/** |
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/** |
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* @private |
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* @private |
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*/ |
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*/ |
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_resetSwitchInProgress: function pdfPresentationMode_resetSwitchInProgress() { |
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_resetSwitchInProgress: |
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function PDFPresentationMode_resetSwitchInProgress() { |
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if (this.switchInProgress) { |
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if (this.switchInProgress) { |
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clearTimeout(this.switchInProgress); |
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clearTimeout(this.switchInProgress); |
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delete this.switchInProgress; |
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delete this.switchInProgress; |
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@ -211,7 +197,7 @@ var PDFPresentationMode = { |
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/** |
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/** |
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* @private |
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* @private |
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*/ |
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*/ |
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_enter: function pdfPresentationModeEnter() { |
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_enter: function PDFPresentationMode_enter() { |
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this.active = true; |
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this.active = true; |
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this._resetSwitchInProgress(); |
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this._resetSwitchInProgress(); |
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this._notifyStateChange(); |
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this._notifyStateChange(); |
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@ -223,11 +209,7 @@ var PDFPresentationMode = { |
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PDFViewerApplication.setScale('page-fit', true); |
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PDFViewerApplication.setScale('page-fit', true); |
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}.bind(this), 0); |
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}.bind(this), 0); |
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window.addEventListener('mousemove', this._showControls, false); |
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this._addWindowListeners(); |
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window.addEventListener('mousedown', this._mouseDown, false); |
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window.addEventListener('keydown', this._resetMouseScrollState, false); |
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window.addEventListener('contextmenu', this._contextMenu, false); |
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this._showControls(); |
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this._showControls(); |
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this.contextMenuOpen = false; |
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this.contextMenuOpen = false; |
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this.container.setAttribute('contextmenu', 'viewerContextMenu'); |
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this.container.setAttribute('contextmenu', 'viewerContextMenu'); |
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@ -241,13 +223,14 @@ var PDFPresentationMode = { |
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/** |
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/** |
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* @private |
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* @private |
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*/ |
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*/ |
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_exit: function pdfPresentationModeExit() { |
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_exit: function PDFPresentationMode_exit() { |
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var page = PDFViewerApplication.page; |
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var page = PDFViewerApplication.page; |
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// Ensure that the correct page is scrolled into view when exiting
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// Ensure that the correct page is scrolled into view when exiting
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// Presentation Mode, by waiting until fullscreen mode is disabled.
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// Presentation Mode, by waiting until fullscreen mode is disabled.
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setTimeout(function exitPresentationModeTimeout() { |
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setTimeout(function exitPresentationModeTimeout() { |
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this.active = false; |
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this.active = false; |
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this._removeFullscreenChangeListeners(); |
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this._notifyStateChange(); |
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this._notifyStateChange(); |
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PDFViewerApplication.setScale(this.args.previousScale, true); |
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PDFViewerApplication.setScale(this.args.previousScale, true); |
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@ -255,11 +238,7 @@ var PDFPresentationMode = { |
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this.args = null; |
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this.args = null; |
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}.bind(this), 0); |
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}.bind(this), 0); |
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window.removeEventListener('mousemove', this._showControls, false); |
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this._removeWindowListeners(); |
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window.removeEventListener('mousedown', this._mouseDown, false); |
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window.removeEventListener('keydown', this._resetMouseScrollState, false); |
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window.removeEventListener('contextmenu', this._contextMenu, false); |
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this._hideControls(); |
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this._hideControls(); |
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this._resetMouseScrollState(); |
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this._resetMouseScrollState(); |
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this.container.removeAttribute('contextmenu'); |
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this.container.removeAttribute('contextmenu'); |
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@ -273,10 +252,9 @@ var PDFPresentationMode = { |
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/** |
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/** |
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* @private |
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* @private |
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*/ |
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*/ |
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_mouseDown: function pdfPresentationModeMouseDown(evt) { |
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_mouseDown: function PDFPresentationMode_mouseDown(evt) { |
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var self = PDFPresentationMode; |
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if (this.contextMenuOpen) { |
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if (self.contextMenuOpen) { |
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this.contextMenuOpen = false; |
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self.contextMenuOpen = false; |
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evt.preventDefault(); |
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evt.preventDefault(); |
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return; |
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return; |
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} |
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} |
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@ -296,46 +274,123 @@ var PDFPresentationMode = { |
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/** |
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/** |
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* @private |
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* @private |
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*/ |
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*/ |
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_contextMenu: function pdfPresentationModeContextMenu(evt) { |
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_contextMenu: function PDFPresentationMode_contextMenu() { |
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PDFPresentationMode.contextMenuOpen = true; |
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this.contextMenuOpen = true; |
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}, |
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}, |
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/** |
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/** |
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* @private |
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* @private |
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*/ |
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*/ |
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_showControls: function pdfPresentationModeShowControls() { |
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_showControls: function PDFPresentationMode_showControls() { |
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var self = PDFPresentationMode; |
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if (this.controlsTimeout) { |
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if (self.controlsTimeout) { |
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clearTimeout(this.controlsTimeout); |
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clearTimeout(self.controlsTimeout); |
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} else { |
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} else { |
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self.container.classList.add(SELECTOR); |
|
|
|
this.container.classList.add(SELECTOR); |
|
|
|
} |
|
|
|
} |
|
|
|
self.controlsTimeout = setTimeout(function showControlsTimeout() { |
|
|
|
this.controlsTimeout = setTimeout(function showControlsTimeout() { |
|
|
|
self.container.classList.remove(SELECTOR); |
|
|
|
this.container.classList.remove(SELECTOR); |
|
|
|
delete self.controlsTimeout; |
|
|
|
delete this.controlsTimeout; |
|
|
|
}, DELAY_BEFORE_HIDING_CONTROLS); |
|
|
|
}.bind(this), DELAY_BEFORE_HIDING_CONTROLS); |
|
|
|
}, |
|
|
|
}, |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
/** |
|
|
|
* @private |
|
|
|
* @private |
|
|
|
*/ |
|
|
|
*/ |
|
|
|
_hideControls: function pdfPresentationModeHideControls() { |
|
|
|
_hideControls: function PDFPresentationMode_hideControls() { |
|
|
|
var self = PDFPresentationMode; |
|
|
|
if (!this.controlsTimeout) { |
|
|
|
if (!self.controlsTimeout) { |
|
|
|
|
|
|
|
return; |
|
|
|
return; |
|
|
|
} |
|
|
|
} |
|
|
|
clearTimeout(self.controlsTimeout); |
|
|
|
clearTimeout(this.controlsTimeout); |
|
|
|
self.container.classList.remove(SELECTOR); |
|
|
|
this.container.classList.remove(SELECTOR); |
|
|
|
delete self.controlsTimeout; |
|
|
|
delete this.controlsTimeout; |
|
|
|
}, |
|
|
|
}, |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
/** |
|
|
|
* Resets the properties used for tracking mouse scrolling events. |
|
|
|
* Resets the properties used for tracking mouse scrolling events. |
|
|
|
* @private |
|
|
|
* @private |
|
|
|
*/ |
|
|
|
*/ |
|
|
|
_resetMouseScrollState: function pdfPresentationModeResetMouseScrollState() { |
|
|
|
_resetMouseScrollState: |
|
|
|
var self = PDFPresentationMode; |
|
|
|
function PDFPresentationMode_resetMouseScrollState() { |
|
|
|
self.mouseScrollTimeStamp = 0; |
|
|
|
this.mouseScrollTimeStamp = 0; |
|
|
|
self.mouseScrollDelta = 0; |
|
|
|
this.mouseScrollDelta = 0; |
|
|
|
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
|
|
* @private |
|
|
|
|
|
|
|
*/ |
|
|
|
|
|
|
|
_addWindowListeners: function PDFPresentationMode_addWindowListeners() { |
|
|
|
|
|
|
|
this.showControlsBind = this._showControls.bind(this); |
|
|
|
|
|
|
|
this.mouseDownBind = this._mouseDown.bind(this); |
|
|
|
|
|
|
|
this.resetMouseScrollStateBind = this._resetMouseScrollState.bind(this); |
|
|
|
|
|
|
|
this.contextMenuBind = this._contextMenu.bind(this); |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
window.addEventListener('mousemove', this.showControlsBind); |
|
|
|
|
|
|
|
window.addEventListener('mousedown', this.mouseDownBind); |
|
|
|
|
|
|
|
window.addEventListener('keydown', this.resetMouseScrollStateBind); |
|
|
|
|
|
|
|
window.addEventListener('contextmenu', this.contextMenuBind); |
|
|
|
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
|
|
* @private |
|
|
|
|
|
|
|
*/ |
|
|
|
|
|
|
|
_removeWindowListeners: |
|
|
|
|
|
|
|
function PDFPresentationMode_removeWindowListeners() { |
|
|
|
|
|
|
|
window.removeEventListener('mousemove', this.showControlsBind); |
|
|
|
|
|
|
|
window.removeEventListener('mousedown', this.mouseDownBind); |
|
|
|
|
|
|
|
window.removeEventListener('keydown', this.resetMouseScrollStateBind); |
|
|
|
|
|
|
|
window.removeEventListener('contextmenu', this.contextMenuBind); |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
delete this.showControlsBind; |
|
|
|
|
|
|
|
delete this.mouseDownBind; |
|
|
|
|
|
|
|
delete this.resetMouseScrollStateBind; |
|
|
|
|
|
|
|
delete this.contextMenuBind; |
|
|
|
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
|
|
* @private |
|
|
|
|
|
|
|
*/ |
|
|
|
|
|
|
|
_fullscreenChange: function PDFPresentationMode_fullscreenChange() { |
|
|
|
|
|
|
|
if (this.isFullscreen) { |
|
|
|
|
|
|
|
this._enter(); |
|
|
|
|
|
|
|
} else { |
|
|
|
|
|
|
|
this._exit(); |
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
|
|
* @private |
|
|
|
|
|
|
|
*/ |
|
|
|
|
|
|
|
_addFullscreenChangeListeners: |
|
|
|
|
|
|
|
function PDFPresentationMode_addFullscreenChangeListeners() { |
|
|
|
|
|
|
|
this.fullscreenChangeBind = this._fullscreenChange.bind(this); |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
window.addEventListener('fullscreenchange', this.fullscreenChangeBind); |
|
|
|
|
|
|
|
window.addEventListener('mozfullscreenchange', this.fullscreenChangeBind); |
|
|
|
|
|
|
|
//#if !(FIREFOX || MOZCENTRAL)
|
|
|
|
|
|
|
|
window.addEventListener('webkitfullscreenchange', |
|
|
|
|
|
|
|
this.fullscreenChangeBind); |
|
|
|
|
|
|
|
window.addEventListener('MSFullscreenChange', this.fullscreenChangeBind); |
|
|
|
|
|
|
|
//#endif
|
|
|
|
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
|
|
|
* @private |
|
|
|
|
|
|
|
*/ |
|
|
|
|
|
|
|
_removeFullscreenChangeListeners: |
|
|
|
|
|
|
|
function PDFPresentationMode_removeFullscreenChangeListeners() { |
|
|
|
|
|
|
|
window.removeEventListener('fullscreenchange', this.fullscreenChangeBind); |
|
|
|
|
|
|
|
window.removeEventListener('mozfullscreenchange', |
|
|
|
|
|
|
|
this.fullscreenChangeBind); |
|
|
|
|
|
|
|
//#if !(FIREFOX || MOZCENTRAL)
|
|
|
|
|
|
|
|
window.removeEventListener('webkitfullscreenchange', |
|
|
|
|
|
|
|
this.fullscreenChangeBind); |
|
|
|
|
|
|
|
window.removeEventListener('MSFullscreenChange', |
|
|
|
|
|
|
|
this.fullscreenChangeBind); |
|
|
|
|
|
|
|
//#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
delete this.fullscreenChangeBind; |
|
|
|
} |
|
|
|
} |
|
|
|
}; |
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return PDFPresentationMode; |
|
|
|
|
|
|
|
})(); |
|
|
|